panic disorder
   HOME

TheInfoList



OR:

Panic disorder is a
mental disorder A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. A mental disorder is ...
, specifically an
anxiety disorder Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause phys ...
, characterized by reoccurring unexpected
panic attack Panic attacks are sudden periods of intense fear and Comfort, discomfort that may include palpitations, otherwise defined as a Tachycardia, rapid, Arrhythmia, irregular Heart rate, heartbeat, Hyperhidrosis, sweating, chest pain or discomfort, s ...
s. Panic attacks are sudden periods of intense
fear Fear is an unpleasant emotion that arises in response to perception, perceived dangers or threats. Fear causes physiological and psychological changes. It may produce behavioral reactions such as mounting an aggressive response or fleeing the ...
that may include
palpitations Palpitations occur when a person becomes aware of their heartbeat. The heartbeat may feel hard, fast, or uneven in their chest. Symptoms include a very fast or irregular heartbeat. Palpitations are a sensory symptom. They are often described as ...
, sweating, shaking,
shortness of breath Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that con ...
, numbness, or a sense of impending doom. The maximum degree of symptoms occurs within minutes. There may be ongoing worries about having further attacks and avoidance of places where attacks have occurred in the past. The exact cause of panic disorder is not fully understood, however there are a number of factors linked to the disorder such as a stressful or traumatic life event, having close family members with the disorder and an imbalance of
neurotransmitter A neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a Chemical synapse, synapse. The cell receiving the signal, or target cell, may be another neuron, but could also be a gland or muscle cell. Neurotra ...
s. Diagnosis involves ruling out other potential causes of anxiety including other
mental disorder A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. A mental disorder is ...
s, medical conditions such as
heart disease Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina pectoris, angina, myocardial infarction, heart attack), heart failure, ...
or
hyperthyroidism Hyperthyroidism is a endocrine disease in which the thyroid gland produces excessive amounts of thyroid hormones. Thyrotoxicosis is a condition that occurs due to elevated levels of thyroid hormones of any cause and therefore includes hyperth ...
, and drug use. Screening for the condition may be done using a
questionnaire A questionnaire is a research instrument that consists of a set of questions (or other types of prompts) for the purpose of gathering information from respondents through survey or statistical study. A research questionnaire is typically a mix of ...
. Panic disorder is usually treated with counselling and
medication Medication (also called medicament, medicine, pharmaceutical drug, medicinal product, medicinal drug or simply drug) is a drug used to medical diagnosis, diagnose, cure, treat, or preventive medicine, prevent disease. Drug therapy (pharmaco ...
s. The type of counselling used is typically
cognitive behavioral therapy Cognitive behavioral therapy (CBT) is a form of psychotherapy that aims to reduce symptoms of various mental health conditions, primarily depression, PTSD, and anxiety disorders. Cognitive behavioral therapy focuses on challenging and chang ...
(CBT) which is effective in more than half of people. Medications used include
antidepressant Antidepressants are a class of medications used to treat major depressive disorder, anxiety disorders, chronic pain, and addiction. Common side effects of antidepressants include Xerostomia, dry mouth, weight gain, dizziness, headaches, akathi ...
s,
benzodiazepine Benzodiazepines (BZD, BDZ, BZs), colloquially known as "benzos", are a class of central nervous system (CNS) depressant, depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed t ...
s, and
beta blocker Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage abnormal heart rhythms ( arrhythmia), and to protect the heart from a second heart attack after a first heart attack ( secondary prevention ...
s. Following stopping treatment up to 30% of people have a recurrence. Panic disorder affects about 2.5% of people at some point in their life. It usually begins during adolescence or early adulthood, but may affect people of any age. It is less common in children and elderly people. Women are more likely than men to develop panic disorder.


Signs and symptoms

Individuals with panic disorder usually have a series of intense episodes of extreme
anxiety Anxiety is an emotion characterised by an unpleasant state of inner wikt:turmoil, turmoil and includes feelings of dread over Anticipation, anticipated events. Anxiety is different from fear in that fear is defined as the emotional response ...
during panic attacks. These attacks typically last about ten minutes, and can be as short-lived as 1–5 minutes, but can last twenty minutes to an hour, and they can occasionally last for even longer or until helpful intervention is made. The intensity and symptoms of panic during panic attacks may vary. In some cases, the attack may continue at unabated high intensity or seem to be increasing in severity. Managing panic disorder can be a challenge, but there are several strategies that can help individuals manage their symptoms and improve their social life. Common symptoms of panic disorder attack include rapid heartbeat,
perspiration Perspiration, also known as sweat, is the fluid secreted by sweat glands in the skin of mammals. Two types of sweat glands can be found in humans: eccrine glands and Apocrine sweat gland, apocrine glands. The eccrine sweat glands are distribu ...
,
dizziness Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. It can also refer to Balance disorder, disequilibrium or a non-specific feeling, such as giddiness or foolishness. Dizziness is a ...
, dyspnea, trembling, uncontrollable
fear Fear is an unpleasant emotion that arises in response to perception, perceived dangers or threats. Fear causes physiological and psychological changes. It may produce behavioral reactions such as mounting an aggressive response or fleeing the ...
such as: the fear of losing control and going crazy, the fear of dying and hyperventilation. Other symptoms are a sensation of choking, paralysis, chest pain, nausea, numbness or tingling, chills or hot flashes, vision problems, faintness, crying and some sense of altered reality. In addition, the person usually has thoughts of impending doom. Individuals experiencing an episode have often a strong wish of escaping from the situation that provoked the attack. The anxiety of panic disorder is particularly severe and noticeably episodic compared to that from
generalized anxiety disorder Generalized anxiety disorder (GAD) is an anxiety disorder characterized by excessive, uncontrollable and often irrational worry about events or activities. Worry often interferes with daily functioning. Individuals with GAD are often overly con ...
. Panic attacks may be provoked by exposure to certain stimuli (e.g., seeing a mouse) or settings (e.g., the dentist's office). Nocturnal panic attacks are common in people with panic disorder. Other attacks may appear unprovoked. Some individuals deal with these events on a regular basis, sometimes daily or weekly. Limited symptom attacks are similar to panic attacks but have fewer symptoms. Most people with
Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a neurodegenerative disease primarily of the central nervous system, affecting both motor system, motor and non-motor systems. Symptoms typically develop gradually and non-motor issues become ...
experience both
panic attack Panic attacks are sudden periods of intense fear and Comfort, discomfort that may include palpitations, otherwise defined as a Tachycardia, rapid, Arrhythmia, irregular Heart rate, heartbeat, Hyperhidrosis, sweating, chest pain or discomfort, s ...
s and limited symptom attacks.


Interoceptive

Studies investigating the relationship between
interoception Interoception is the collection of Sense#Other internal sensations and perceptions, senses providing information to the organism about the internal state of the body. This can be both conscious and subconscious. It encompasses the brain's process ...
and panic disorder have shown that people with panic disorder feel heartbeat sensations more intensely when stimulated by pharmacological agents, suggesting that they experience heightened interoceptive awareness compared to subjects without
Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a neurodegenerative disease primarily of the central nervous system, affecting both motor system, motor and non-motor systems. Symptoms typically develop gradually and non-motor issues become ...
.


Causes


Psychological models

While there is not just one explanation for the cause of panic disorder, there are certain perspectives researchers use to explain the disorder. The first one is the biological perspective. Past research concluded that there is irregular norepinephrine activity in people who have panic attacks. Current research also supports this perspective as it has been found that those with panic disorder also have a brain circuit that performs improperly. This circuit consists of the
amygdala The amygdala (; : amygdalae or amygdalas; also '; Latin from Greek language, Greek, , ', 'almond', 'tonsil') is a paired nucleus (neuroanatomy), nuclear complex present in the Cerebral hemisphere, cerebral hemispheres of vertebrates. It is c ...
, central gray matter, ventromedial nucleus of the hypothalamus, and the locus ceruleus. There is also a cognitive perspective. Theorists believe that people with panic disorder may experience panic reactions because they mistake their bodily sensations for life-threatening situations. These bodily sensations cause some people to feel as though they are out of control, which may lead to feelings of panic. This misconception of bodily sensations is referred to as
anxiety sensitivity Anxiety is an emotion characterised by an unpleasant state of inner wikt:turmoil, turmoil and includes feelings of dread over Anticipation, anticipated events. Anxiety is different from fear in that fear is defined as the emotional response ...
, and studies suggest that people who score higher on anxiety sensitivity surveys are five times more likely to be diagnosed with panic disorder. Panic disorder has been found to run in families, which suggests that
inheritance Inheritance is the practice of receiving private property, titles, debts, entitlements, privileges, rights, and obligations upon the death of an individual. The rules of inheritance differ among societies and have changed over time. Offi ...
plays a strong role in determining who will get it. Psychological factors, stressful life events, life transitions, and environment as well as often thinking in a way that exaggerates relatively normal bodily reactions are also believed to play a role in the onset of panic disorder. Often the first attacks are triggered by physical illnesses, major stress, or certain
medication Medication (also called medicament, medicine, pharmaceutical drug, medicinal product, medicinal drug or simply drug) is a drug used to medical diagnosis, diagnose, cure, treat, or preventive medicine, prevent disease. Drug therapy (pharmaco ...
s. People who tend to take on excessive responsibilities may develop a tendency to have panic attacks. Individuals with post-traumatic stress disorder ( PTSD) also show a much higher rate of panic disorder than the general population. Prepulse inhibition has been found to be reduced in patients with panic disorder.


Substance use

Substance use disorder Substance use disorder (SUD) is the persistent use of drugs despite substantial harm and adverse consequences to self and others. Related terms include ''substance use problems'' and ''problematic drug or alcohol use''. Along with substance-ind ...
s are often correlated with panic attacks. In a study, 39% of people with panic disorder had recreationally used substances. Of those who used alcohol, 63% reported that the alcohol use began prior to the onset of panic, and 59% of those using illicit substances reported that substance use began first. The study that was conducted documented the panic-substance use disorder relationship. Substance use disorder began prior to the onset of panic and substances were used to self-medicate for panic attacks by only a few subjects. In another study, 100 methamphetamine-dependent individuals were analyzed for co-morbid psychiatric disorders; of the 100 individuals, 36% were categorized as having co-morbid psychiatric disorders. Mood and Psychotic disorders were more prevalent than anxiety disorders, which accounted for 7% of the 100 sampled individuals.


Smoking

Tobacco smoking Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or released from the mouth, as is generally done with pipes and cigars. The practice is believed to hav ...
increases the risk of developing panic disorder with or without agoraphobia and
panic attack Panic attacks are sudden periods of intense fear and Comfort, discomfort that may include palpitations, otherwise defined as a Tachycardia, rapid, Arrhythmia, irregular Heart rate, heartbeat, Hyperhidrosis, sweating, chest pain or discomfort, s ...
s; smoking started in adolescence or early adulthood particularly increases this risk of developing panic disorder. While the mechanism of how smoking increases panic attacks is not fully understood, a few hypotheses have been derived. Smoking cigarettes may lead to panic attacks by causing changes in respiratory function (e.g., feeling short of breath). These respiratory changes in turn can lead to the formation of panic attacks, as respiratory symptoms are a prominent feature of panic. Respiratory abnormalities have been found in children with high levels of
anxiety Anxiety is an emotion characterised by an unpleasant state of inner wikt:turmoil, turmoil and includes feelings of dread over Anticipation, anticipated events. Anxiety is different from fear in that fear is defined as the emotional response ...
, which suggests that a person with these difficulties may be susceptible to panic attacks, and thus more likely to subsequently develop panic disorder.
Nicotine Nicotine is a natural product, naturally produced alkaloid in the nightshade family of plants (most predominantly in tobacco and ''Duboisia hopwoodii'') and is widely used recreational drug use, recreationally as a stimulant and anxiolytic. As ...
, a
stimulant Stimulants (also known as central nervous system stimulants, or psychostimulants, or colloquially as uppers) are a class of drugs that increase alertness. They are used for various purposes, such as enhancing attention, motivation, cognition, ...
, could contribute to panic attacks. However, nicotine withdrawal may also cause significant anxiety which could contribute to panic attacks. It is also possible that panic disorder patients smoke cigarettes as a form of self-medication to lessen anxiety. Nicotine and other psychoactive compounds with antidepressant properties in
tobacco Tobacco is the common name of several plants in the genus '' Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the ...
smoke which act as monoamine oxidase inhibitors in the brain can alter mood and have a calming effect, depending on dose.


Stimulants

A number of clinical studies have shown a positive association between
caffeine Caffeine is a central nervous system (CNS) stimulant of the methylxanthine chemical classification, class and is the most commonly consumed Psychoactive drug, psychoactive substance globally. It is mainly used for its eugeroic (wakefulness pr ...
ingestion and panic disorder and/or anxiogenic effects. People who have panic disorder are more sensitive to the anxiety-provoking effects of caffeine. One of the major anxiety-provoking effects of caffeine is an increase in heart rate. Certain cold and flu medications containing decongestants may also contain pseudoephedrine,
ephedrine Ephedrine is a central nervous system (CNS) stimulant and sympathomimetic agent that is often used to prevent hypotension, low blood pressure during anesthesia. It has also been used for asthma, narcolepsy, and obesity but is not the preferred ...
, phenylephrine, naphazoline and oxymetazoline. These may be avoided by the use of decongestants formulated to prevent causing high blood pressure.


Alcohol and sedatives

About 30% of people with panic disorder use
alcohol Alcohol may refer to: Common uses * Alcohol (chemistry), a class of compounds * Ethanol, one of several alcohols, commonly known as alcohol in everyday life ** Alcohol (drug), intoxicant found in alcoholic beverages ** Alcoholic beverage, an alco ...
and 17% use other
psychoactive drug A psychoactive drug, psychopharmaceutical, mind-altering drug, consciousness-altering drug, psychoactive substance, or psychotropic substance is a chemical substance that alters psychological functioning by modulating central nervous system acti ...
s. This is in comparison with 61% (alcohol) and 7.9% (other psychoactive drugs) of the general population who use alcohol and psychoactive drugs, respectively. Utilization of recreational drugs or alcohol generally make symptoms worse. Most stimulant drugs (caffeine, nicotine, cocaine) would be expected to worsen the condition, since they directly increase the symptoms of panic, such as heart rate. Deacon and Valentiner (2000) conducted a study that examined co-morbid panic attacks and substance use in a non-clinical sample of young adults who experienced regular panic attacks. The authors found that compared to healthy controls,
sedative A sedative or tranquilliser is a substance that induces sedation by reducing irritability or Psychomotor agitation, excitement. They are central nervous system (CNS) Depressant, depressants and interact with brain activity, causing its decelera ...
use was greater for non-clinical participants who experienced panic attacks. These findings are consistent with the suggestion made by Cox, Norton, Dorward, and Fergusson (1989) that panic disorder patients self-medicate if they believe that certain substances will be successful in alleviating their symptoms. If panic disorder patients are indeed self-medicating, there may be a portion of the population with undiagnosed panic disorder who will not seek professional help as a result of their own self-medication. In fact, for some patients panic disorder is only diagnosed after they seek treatment for their self-medication habit. While
alcohol Alcohol may refer to: Common uses * Alcohol (chemistry), a class of compounds * Ethanol, one of several alcohols, commonly known as alcohol in everyday life ** Alcohol (drug), intoxicant found in alcoholic beverages ** Alcoholic beverage, an alco ...
initially helps ease panic disorder symptoms, medium- or long-term hazardous alcohol use can cause panic disorder to develop or worsen during
alcohol intoxication Alcohol intoxication, commonly described in higher doses as drunkenness or inebriation, and known in overdose as alcohol poisoning, is the behavior and physical effects caused by recent consumption of Alcohol (drug), alcohol. The technical ter ...
, especially during alcohol withdrawal syndrome. This effect is not unique to alcohol but can also occur with long-term use of drugs which have a similar mechanism of action to alcohol such as the benzodiazepines which are sometimes prescribed as tranquilizers to people with alcohol problems. The reason chronic alcohol misuse worsens panic disorder is due to distortion of the brain chemistry and function. Approximately 10% of patients will experience notable protracted withdrawal symptoms, which can include panic disorder, after discontinuation of benzodiazepines. Protracted withdrawal symptoms tend to resemble those seen during the first couple of months of withdrawal but usually are of a subacute level of severity compared to the symptoms seen during the first 2 or 3 months of withdrawal. It is not known definitively whether such symptoms persisting long after withdrawal are related to true pharmacological withdrawal or whether they are due to structural neuronal damage as a result of chronic use of benzodiazepines or withdrawal. Nevertheless, such symptoms do typically lessen as the months and years go by eventually disappearing altogether. A significant proportion of patients attending mental health services for conditions including
anxiety disorder Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause phys ...
s such as panic disorder or
social phobia Social anxiety disorder (SAD), also known as social phobia, is an anxiety disorder characterized by sentiments of fear and anxiety in social situations, causing considerable distress and impairing ability to function in at least some as ...
have developed these conditions as a result of recreational alcohol or
sedative A sedative or tranquilliser is a substance that induces sedation by reducing irritability or Psychomotor agitation, excitement. They are central nervous system (CNS) Depressant, depressants and interact with brain activity, causing its decelera ...
use. Anxiety may pre-exist alcohol or sedative dependence, which then acts to perpetuate or worsen the underlying anxiety disorder. Someone experiencing the toxic effects of recreational alcohol use or chronic sedative use will not benefit from other therapies or medications for underlying psychiatric conditions as they do not address the root cause of the symptoms. Recovery from sedative symptoms may temporarily worsen during alcohol withdrawal or benzodiazepine withdrawal.


Genetic Hypotheses

Genetic vulnerability to panic disorder remains a gray area. However, some researchers have found strong causative links. In general, neurochemical dysfunction plays the most prominent role in genetic cause for panic disorder. This can be seen in factors such as autonomic imbalances, decreased GABA-ergic tone, increased adenosine receptor function, increased cortisol levels, and disturbances in other hormones and/or neurotransmitters (e.g., norepinephrine). Some studies have looked at theories suggesting a chronic state of hyperventilation and other carbon dioxide receptor hypersensitivity could represent genetic causes for panic disorder. Differing proposed causes look at chromosomal regions 13q, 14q, 22q, and 4q31-q34 as possible associations to heritability.


Mechanism

The neuroanatomy of panic disorder largely overlaps with that of most
anxiety disorder Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause phys ...
s. Neuropsychological, neurosurgical, and neuroimaging studies implicate the insula,
amygdala The amygdala (; : amygdalae or amygdalas; also '; Latin from Greek language, Greek, , ', 'almond', 'tonsil') is a paired nucleus (neuroanatomy), nuclear complex present in the Cerebral hemisphere, cerebral hemispheres of vertebrates. It is c ...
,
hippocampus The hippocampus (: hippocampi; via Latin from Ancient Greek, Greek , 'seahorse'), also hippocampus proper, is a major component of the brain of humans and many other vertebrates. In the human brain the hippocampus, the dentate gyrus, and the ...
, anterior cingulate cortex (ACC), lateral prefrontal cortex, and periaqueductal grey. During acute panic attacks, viewing emotionally charged words, and rest, most studies find elevated blood flow or
metabolism Metabolism (, from ''metabolē'', "change") is the set of life-sustaining chemical reactions in organisms. The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the co ...
. However, the observation of amygdala hyperactivity is not entirely consistent, especially in studies that evoke panic attacks chemically. Hippocampus hyperactivity has been observed during rest and viewing emotionally charged pictures, which has been hypothesized to be related to memory retrieval bias towards anxious memories. Insula hyperactivity during the onset of and over the course of acute panic episodes is thought to be related to abnormal introceptive processes; the perception that bodily sensations are "wrong" is a transdiagnostic finding (i.e. found across multiple anxiety disorders), and may be related to insula dysfunction. Rodent and human studies heavily implicate the periaqueductal grey in generating fear responses, and abnormalities related to the structure and metabolism in the PAG have been reported in panic disorder. The frontal cortex is implicated in panic disorder by multiple lines of evidence. Damage to the dorsal ACC has been reported to lead to panic disorder. Elevated ventral ACC and dorsolateral prefrontal cortex during symptom provocation and viewing emotional stimuli have also been reported, although findings are not consistent. Researchers studying some individuals with panic disorder propose they may have a chemical imbalance within the
limbic system The limbic system, also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain.Schacter, Daniel L. 2012. ''P ...
and one of its regulatory chemicals GABA-A. The reduced production of GABA-A sends false information to the
amygdala The amygdala (; : amygdalae or amygdalas; also '; Latin from Greek language, Greek, , ', 'almond', 'tonsil') is a paired nucleus (neuroanatomy), nuclear complex present in the Cerebral hemisphere, cerebral hemispheres of vertebrates. It is c ...
which regulates the body's "fight or flight" response mechanism and, in return, produces the physiological symptoms that lead to the disorder. Clonazepam, an anticonvulsant benzodiazepine with a long half-life, has been successful in keeping the condition under control. Recently, researchers have begun to identify mediators and moderators of aspects of panic disorder. One such mediator is the partial pressure of carbon dioxide, which mediates the relationship between panic disorder patients receiving breathing training and anxiety sensitivity; thus, breathing training affects the partial pressure of carbon dioxide in a patient's arterial blood, which in turn lowers anxiety sensitivity. Another mediator is hypochondriacal concerns, which mediate the relationship between anxiety sensitivity and panic symptomatology; thus, anxiety sensitivity affects hypochondriacal concerns which, in turn, affect panic symptomatology. Perceived threat control has been identified as a moderator within panic disorder, moderating the relationship between anxiety sensitivity and agoraphobia; thus, the level of perceived threat control dictates the degree to which anxiety sensitivity results in agoraphobia. Another recently identified moderator of panic disorder is genetic variations in the gene coding for galanin; these genetic variations moderate the relationship between females with panic disorder and the level of severity of panic disorder symptomatology.


Diagnosis

The
DSM-IV-TR The ''Diagnostic and Statistical Manual of Mental Disorders'' (''DSM''; latest edition: ''DSM-5-TR'', published in March 2022) is a publication by the American Psychiatric Association (APA) for the classification of mental disorders using a c ...
diagnostic criteria for panic disorder require unexpected, recurrent panic attacks, followed in at least one instance by at least a month of a significant and related behavior change, a persistent concern of more attacks, or a worry about the attack's consequences. There are two types, one with and one without agoraphobia. Diagnosis is excluded by attacks due to a drug or medical condition, or by panic attacks that are better accounted for by other mental disorders.
The
ICD-10 ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social cir ...
diagnostic criteria:
The essential feature is recurrent attacks of severe anxiety (panic), which are not restricted to any particular situation or set of circumstances and are therefore unpredictable.
The dominant symptoms include: * sudden onset of palpitations * chest pain or tightness *
shortness of breath Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that con ...
or
hyperventilation Hyperventilation is irregular breathing that occurs when the rate or tidal volume of breathing eliminates more carbon dioxide than the body can produce. This leads to hypocapnia, a reduced concentration of carbon dioxide dissolved in the blo ...
* choking sensations *
dizziness Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. It can also refer to Balance disorder, disequilibrium or a non-specific feeling, such as giddiness or foolishness. Dizziness is a ...
* feelings of unreality (depersonalization or derealization) * secondary fear of dying, losing control, or going mad Panic disorder should not be given as the main diagnosis if the person has a depressive disorder at the time the attacks start; in these circumstances, the panic attacks are probably secondary to depression. The Panic Disorder Severity Scale (PDSS) is a questionnaire for measuring the severity of panic disorder.


Treatment

Panic disorder is a serious health problem that in many cases can be successfully treated, although there is no known cure. Identification of treatments that engender as full a response as possible, and can minimize relapse, is imperative.
Cognitive behavioral therapy Cognitive behavioral therapy (CBT) is a form of psychotherapy that aims to reduce symptoms of various mental health conditions, primarily depression, PTSD, and anxiety disorders. Cognitive behavioral therapy focuses on challenging and chang ...
and positive self-talk specific for panic are the treatments of choice for panic disorder. Several studies show that 85 to 90 percent of panic disorder patients treated with CBT recover completely from their panic attacks within 12 weeks. When cognitive behavioral therapy is not an option, pharmacotherapy can be used. SSRIs are considered a first-line pharmacotherapeutic option.


Psychotherapy

Panic disorder is not the same as phobic symptoms, although many phobias commonly result from panic disorder. CBT and one tested form of
psychodynamic psychotherapy Psychodynamic psychotherapy (or psychodynamic therapy) and psychoanalytic psychotherapy (or psychoanalytic therapy) are two categories of psychological therapies. Their main purpose is revealing the unconscious content of a client's psyche in a ...
have been shown efficacious in treating panic disorder with and without agoraphobia. A number of randomized clinical trials have shown that CBT achieves reported panic-free status in 70–90% of patients about 2 years after treatment. A 2009 Cochrane review found little evidence concerning the efficacy of psychotherapy in combination with
benzodiazepine Benzodiazepines (BZD, BDZ, BZs), colloquially known as "benzos", are a class of central nervous system (CNS) depressant, depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed t ...
s such that recommendations could not be made. Symptom inductions generally occur for ''one minute'' and may include: *Intentional hyperventilation – creates lightheadedness, derealization, blurred vision,
dizziness Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. It can also refer to Balance disorder, disequilibrium or a non-specific feeling, such as giddiness or foolishness. Dizziness is a ...
*Spinning in a chair – creates
dizziness Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. It can also refer to Balance disorder, disequilibrium or a non-specific feeling, such as giddiness or foolishness. Dizziness is a ...
, disorientation *Straw breathing – creates dyspnea, airway constriction *Breath holding – creates sensation of being out of
breath Breathing (spiration or ventilation) is the neuroscience of rhythm, rhythmical process of moving air into (inhalation) and out of (exhalation) the lungs to facilitate gas exchange with the Milieu intérieur, internal environment, mostly to flu ...
*Running in place – creates increased
heart rate Heart rate is the frequency of the cardiac cycle, heartbeat measured by the number of contractions of the heart per minute (''beats per minute'', or bpm). The heart rate varies according to the body's Human body, physical needs, including the nee ...
, respiration,
perspiration Perspiration, also known as sweat, is the fluid secreted by sweat glands in the skin of mammals. Two types of sweat glands can be found in humans: eccrine glands and Apocrine sweat gland, apocrine glands. The eccrine sweat glands are distribu ...
*Body tensing – creates feelings of being tense and vigilant Another form of psychotherapy that has shown effectiveness in controlled clinical trials is panic-focused psychodynamic psychotherapy, which focuses on the role of dependency, separation anxiety, and anger in causing panic disorder. The underlying theory posits that due to biochemical vulnerability, traumatic early experiences, or both, people with panic disorder have a fearful dependence on others for their sense of security, which leads to separation anxiety and defensive anger. Therapy involves first exploring the stressors that lead to panic episodes, then probing the psychodynamics of the conflicts underlying panic disorder and the defense mechanisms that contribute to the attacks, with attention to transference and separation anxiety issues implicated in the therapist-patient relationship. Comparative clinical studies suggest that muscle relaxation techniques and breathing exercises are not efficacious in reducing panic attacks. In fact, breathing exercises may actually increase the risk of relapse. Appropriate treatment by an experienced professional can prevent panic attacks or at least substantially reduce their severity and frequency—bringing significant relief to 70 to 90 percent of people with panic disorder. Relapses may occur, but they can often be effectively treated just like the initial episode. vanApeldoorn, F.J. et al. (2011) demonstrated the additive value of a combined treatment incorporating an SSRI treatment intervention with cognitive behavior therapy (CBT). Gloster et al. (2011) went on to examine the role of the therapist in CBT. They randomized patients into two groups: one being treated with CBT in a therapist guided environment, and the second receiving CBT through instruction only, with no therapist guided sessions. The findings indicated that the first group had a somewhat better response rate, but that both groups demonstrated a significant improvement in reduction of panic symptomatology. These findings lend credibility to the application of CBT programs to patients who are unable to access therapeutic services due to financial, or geographic inaccessibility. Koszycky et al. (2011) discuss the efficacy of self-administered cognitive behavioural therapy (SCBT) in situations where patients are unable to retain the services of a therapist. Their study demonstrates that it is possible for SCBT in combination with an SSRI to be as effective as therapist-guided CBT with SSRI. Each of these studies contributes to a new avenue of research that allows effective treatment interventions to be made more easily accessible to the population.


Cognitive behavioral therapy

Cognitive behavioral therapy Cognitive behavioral therapy (CBT) is a form of psychotherapy that aims to reduce symptoms of various mental health conditions, primarily depression, PTSD, and anxiety disorders. Cognitive behavioral therapy focuses on challenging and chang ...
encourages patients to confront the triggers that induce their
anxiety Anxiety is an emotion characterised by an unpleasant state of inner wikt:turmoil, turmoil and includes feelings of dread over Anticipation, anticipated events. Anxiety is different from fear in that fear is defined as the emotional response ...
. By facing the very cause of the anxiety, it is thought to help diminish the irrational fears that are causing the issues to begin with. The therapy begins with calming breathing exercises, followed by noting the changes in physical sensations felt as soon as anxiety begins to enter the body. Many clients are encouraged to keep journals. In other cases, therapists may try and induce feelings of anxiety so that the root of the fear can be identified. Comorbid
clinical depression Major depressive disorder (MDD), also known as clinical depression, is a mental disorder characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities. Intro ...
, personality disorders and
alcohol abuse Alcohol abuse encompasses a spectrum of alcohol-related substance abuse. This spectrum can range from being mild, moderate, or severe. This can look like consumption of more than 2 drinks per day on average for men, or more than 1 drink per ...
are known risk factors for treatment failure. As with many disorders, having a support structure of family and friends who understand the condition can help increase the rate of recovery. During an attack, it is not uncommon for the affected to develop irrational, immediate fear, which can often be dispelled by a supporter who is familiar with the condition. For more serious or active treatment, there are support groups for those with anxiety which can help people understand and deal with the disorder. Current treatment guidelines
American Psychiatric Association The American Psychiatric Association (APA) is the main professional organization of psychiatrists and trainee psychiatrists in the United States, and the largest psychiatric organization in the world. It has more than 39,200 members who are in ...
and the
American Medical Association The American Medical Association (AMA) is an American professional association and lobbying group of physicians and medical students. This medical association was founded in 1847 and is headquartered in Chicago, Illinois. Membership was 271,660 ...
primarily recommend either cognitive-behavioral therapy or one of a variety of psychopharmacological interventions. Some evidence exists supporting the superiority of combined treatment approaches. Another option is self-help based on principles of cognitive-behavioral therapy. Using a book or a website, a person does the kinds of exercises that would be used in therapy, but they do it on their own, perhaps with some email or phone support from a therapist. A systematic analysis of trials testing this kind of self-help found that websites, books, and other materials based on cognitive-behavioral therapy could help some people. The best-studied conditions are panic disorder and social phobia.


Interoceptive techniques

Interoceptive exposure is sometimes used for panic disorder. People's interoceptive triggers of anxiety are evaluated one-by-one before conducting interoceptive exposures, such as addressing palpitation sensitivity via light exercise. Despite evidence of its clinical efficacy, this practice is reportedly used by only 12–20% of psychotherapists. Potential reasons for this underutilization include "lack of training sites, logistical hurdles (e.g., occasional need for exposure durations longer than a standard therapy session), policies against conducting exposures outside of the workplace setting, and perhaps most tellingly, negative therapist beliefs (e.g., that interoceptive exposures are unethical, intolerable, or even harmful)."


Medication

Appropriate medications are effective for panic disorder. Selective serotonin reuptake inhibitors are first line treatments rather than benzodiazapines due to concerns with the latter regarding tolerance, dependence and abuse. Although there is little evidence that pharmacological interventions can directly alter phobias, few studies have been performed, and medication treatment of panic makes phobia treatment far easier (for example in Europe where only 8% of patients receive appropriate treatment). Medications can include: *
Antidepressant Antidepressants are a class of medications used to treat major depressive disorder, anxiety disorders, chronic pain, and addiction. Common side effects of antidepressants include Xerostomia, dry mouth, weight gain, dizziness, headaches, akathi ...
s (
SSRI Selective serotonin reuptake inhibitors (SSRIs) are a class of drugs that are typically used as antidepressants in the treatment of major depressive disorder, anxiety disorders, and other psychological conditions. SSRIs primarily work by ...
s, MAOIs, tricyclic antidepressants and norepinephrine reuptake inhibitors): The most common SSRIs used while treating panic disorder include Prozac ( Fluoxetine), Luvox ( Fluvoxamine), Zoloft (
Sertraline Sertraline, sold under the brand name Zoloft among others, is an Antidepressant, antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class used to treat major depressive disorder, generalized anxiety disorder, socia ...
), and Paxil ( Paroxetine). These have been reported as the most effective in preventing panic attacks. The most researched and support tricyclic antidepressants are Tofranil and Anafranil. Other tricyclic antidepressants used for treatment include Pamelor, Norpramin, and Elavil. While these are potentially helpful in treating panic disorder, research has not been as conclusive when compared to the two previously mentioned medications. Monoamine oxidase inhibitors (MAOIs) can be used as a second-line or third-line treatment, but have shown limited efficacy in the treatment of panic disorder, and also carry significant risks of adverse effects and medication interactions. * Antianxiety agents (
benzodiazepine Benzodiazepines (BZD, BDZ, BZs), colloquially known as "benzos", are a class of central nervous system (CNS) depressant, depressant drugs whose core chemical structure is the fusion of a benzene ring and a diazepine ring. They are prescribed t ...
s): The
American Psychiatric Association The American Psychiatric Association (APA) is the main professional organization of psychiatrists and trainee psychiatrists in the United States, and the largest psychiatric organization in the world. It has more than 39,200 members who are in ...
states that benzodiazepines can be effective for the treatment of panic disorder and recommends that the choice of whether to use benzodiazepines, antidepressants with anti-panic properties or psychotherapy should be based on the individual patient's history and characteristics. Other experts believe that benzodiazepines are best avoided due to the risks of the development of tolerance and
physical dependence Physical dependence is a physical condition caused by chronic use of a tolerance-forming drug, in which abrupt or gradual drug withdrawal causes unpleasant physical symptoms. Physical dependence can develop from low-dose therapeutic use of certa ...
. The World Federation of Societies of Biological Psychiatry, say that benzodiazepines should not be used as a first-line treatment option but are an option for treatment-resistant cases of panic disorder. Despite increasing focus on the use of antidepressants and other agents for the treatment of anxiety as recommended best practice, benzodiazepines have remained a commonly used medication for panic disorder. They reported that in their view there is insufficient evidence to recommend one treatment over another for panic disorder. The APA noted that while benzodiazepines have the advantage of a rapid onset of action, that this is offset by the risk of developing a benzodiazepine dependence. The National Institute for Clinical Excellence came to a different conclusion, they pointed out the problems of using uncontrolled clinical trials to assess the effectiveness of pharmacotherapy and based on placebo-controlled research they concluded that benzodiazepines were not effective in the long-term for panic disorder and recommended that benzodiazepines not be used for longer than 4 weeks for panic disorder. Instead NICE clinical guidelines recommend alternative pharmacotherapeutic or psychotherapeutic interventions. When compared to placebos, benzodiazepines demonstrate possible superiority in the short term but the evidence is low quality with limited applicability to clinical practice.


Other treatments

For some people, anxiety can be greatly reduced by discontinuing the use of
caffeine Caffeine is a central nervous system (CNS) stimulant of the methylxanthine chemical classification, class and is the most commonly consumed Psychoactive drug, psychoactive substance globally. It is mainly used for its eugeroic (wakefulness pr ...
. Anxiety can temporarily increase during caffeine withdrawal.


Epidemiology

Panic disorder typically begins during early adulthood; roughly half of all people who have panic disorder develop the condition between the ages of 17 and 24, especially those subjected to traumatic experiences. However, some studies suggest that the majority of young people affected for the first time are between the ages of 25 and 30. Women are twice as likely as men to develop panic disorder and it occurs far more frequently in people of above average intelligence. Panic disorder can continue for months or years, depending on how and when treatment is sought. If left untreated, it may worsen to the point where one's life is seriously affected by panic attacks and by attempts to avoid or conceal the condition. In fact, many people have had problems with personal relationships, education and employment while struggling to cope with panic disorder. Some people with panic disorder may conceal their condition because of the stigma of mental illness. In some individuals, symptoms may occur frequently for a period of months or years, then many years may pass with little or no symptoms. In some cases, the symptoms persist at the same level indefinitely. There is also some evidence that many individuals (especially those who develop symptoms at an early age) may experience a complete cessation of symptoms later in life (e.g., over age 50). In 2000, the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
found prevalence and incidence rates for panic disorder to be very similar across the globe. Age-standardized prevalence per 100,000 ranged from 309 in Africa to 330 in East Asia for men and from 613 in Africa to 649 in North America, Oceania, and Europe for women.


Children

A retrospective study has shown that 40% of adult panic disorder patients reported that their disorder began before the age of 20. In an article examining the phenomenon of panic disorder in youth, Diler et al. (2004) found that only a few past studies have examined the occurrence of juvenile panic disorder. They report that these studies have found that the symptoms of juvenile panic disorder almost replicate those found in adults (e.g. heart palpitations, sweating, trembling, hot flashes,
nausea Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat. Over 30 d ...
, abdominal distress, and chills). The
anxiety disorder Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause phys ...
s co-exist with staggeringly high numbers of other mental disorders in adults. The same comorbid disorders that are seen in adults are also reported in children with juvenile panic disorder. Last and Strauss (1989) examined a sample of 17 adolescents with panic disorder and found high rates of comorbid anxiety disorders,
major depressive disorder Major depressive disorder (MDD), also known as clinical depression, is a mental disorder characterized by at least two weeks of pervasive depression (mood), low mood, low self-esteem, and anhedonia, loss of interest or pleasure in normally ...
, and conduct disorders. Eassau et al. (1999) also found a high number of comorbid disorders in a community-based sample of adolescents with panic attacks or juvenile panic disorder. Within the sample, adolescents were found to have the following comorbid disorders: major depressive disorder (80%), dysthymic disorder (40%),
generalized anxiety disorder Generalized anxiety disorder (GAD) is an anxiety disorder characterized by excessive, uncontrollable and often irrational worry about events or activities. Worry often interferes with daily functioning. Individuals with GAD are often overly con ...
(40%), somatoform disorders (40%),
substance abuse Substance misuse, also known as drug misuse or, in older vernacular, substance abuse, is the use of a drug in amounts or by methods that are harmful to the individual or others. It is a form of substance-related disorder, differing definition ...
(40%), and specific phobia (20%). Consistent with this previous work, Diler et al. (2004) found similar results in their study in which 42 youths with juvenile panic disorder were examined. Compared to non-panic anxiety disordered youths, children with panic disorder had higher rates of comorbid major depressive disorder and
bipolar disorder Bipolar disorder (BD), previously known as manic depression, is a mental disorder characterized by periods of Depression (mood), depression and periods of abnormally elevated Mood (psychology), mood that each last from days to weeks, and in ...
. Children differ from adolescents and adults in their interpretation and ability to express their experience. Like adults, children experience physical symptoms including accelerated heart rate, sweating, trembling or shaking, shortness of breath, nausea or abdominal pain, dizziness or light-headedness. In addition, children also experience cognitive symptoms like fear of dying, feelings of being detached from oneself and feelings of losing control or going crazy. Children are often unable to articulate these higher-order manifestations of fear; they simply feel that something is wrong and that they are very afraid. Children can only describe physical symptoms. They have not yet developed the ability to put these symptoms together and label them as fear. Parents often feel helpless when they watch their child suffer. They can help children give a name to their experience, and empower them to overcome the fear they are experiencing The role of the parent in treatment and intervention for children diagnosed with panic disorder is discussed by McKay & Starch (2011). They point out that there are several levels at which parental involvement should be considered. The first involves the initial assessment. Parents, as well as the child, should be screened for attitudes and treatment goals, as well as for levels of anxiety or conflict in the home. The second involves the treatment process in which the therapist should meet with the family as a unit as frequently as possible. Ideally, all family members should be aware and trained in the process of cognitive behavior therapy (CBT) in order to encourage the child to rationalize and face fears rather than employ avoidant safety behaviors. McKay & Storch (2011) suggest training/modeling of therapeutic techniques and in-session involvement of the parents in the treatment of children to enhance treatment efficacy. Despite the evidence pointing to the existence of early-onset panic disorder, the
DSM-IV-TR The ''Diagnostic and Statistical Manual of Mental Disorders'' (''DSM''; latest edition: ''DSM-5-TR'', published in March 2022) is a publication by the American Psychiatric Association (APA) for the classification of mental disorders using a c ...
currently only recognizes six anxiety disorders in children:
separation anxiety disorder Separation anxiety disorder (SAD) is an anxiety disorder in which an individual experiences excessive anxiety regarding separation from home and/or from people to whom the individual has a strong emotional attachment (e.g., a parent, caregive ...
, generalized anxiety disorder, specific phobia, obsessive-compulsive disorder,
social anxiety disorder Social anxiety disorder (SAD), also known as social phobia, is an anxiety disorder characterized by sentiments of fear and anxiety in social situations, causing considerable distress and impairing ability to function in at least some asp ...
(a.k.a. social phobia), and
post-traumatic stress disorder Post-traumatic stress disorder (PTSD) is a mental disorder that develops from experiencing a Psychological trauma, traumatic event, such as sexual assault, domestic violence, child abuse, warfare and its associated traumas, natural disaster ...
. Panic disorder is notably excluded from this list.


References


External links

{{Authority control Anxiety disorders Anxiety or fear-related disorders Emotional issues Fear Wikipedia neurology articles ready to translate Wikipedia medicine articles ready to translate