Thrombophlebitis is a

phlebitis Phlebitis (or venitis) is inflammation of a vein, usually in the legs. It most commonly occurs in superficial veins. Phlebitis often occurs in conjunction with thrombosis (clotting inside blood vessels) and is then called thrombophlebitis or ...

(

inflammation Inflammation (from ) is part of the biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. The five cardinal signs are heat, pain, redness, swelling, and loss of function (Latin ''calor'', '' ...

of a

vein Veins () are blood vessels in the circulatory system of humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are those of the pulmonary and feta ...

) related to a

thrombus A thrombus ( thrombi) is a solid or semisolid aggregate from constituents of the blood (platelets, fibrin, red blood cells, white blood cells) within the circulatory system during life. A blood clot is the final product of the blood coagulatio ...

(blood clot). When it occurs repeatedly in different locations, it is known as thrombophlebitis migrans ( migratory thrombophlebitis).

Signs and symptoms

The following symptoms or signs are often associated with thrombophlebitis, although thrombophlebitis is not restricted to the veins of the legs. *

Pain Pain is a distressing feeling often caused by intense or damaging Stimulus (physiology), stimuli. The International Association for the Study of Pain defines pain as "an unpleasant sense, sensory and emotional experience associated with, or res ...

(area affected) * Skin redness/

Edema Edema (American English), also spelled oedema (British English), and also known as fluid retention, swelling, dropsy and hydropsy, is the build-up of fluid in the body's tissue (biology), tissue. Most commonly, the legs or arms are affected. S ...

Vein Veins () are blood vessels in the circulatory system of humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are those of the pulmonary and feta ...

s (hard and cord-like) * Tenderness

Complications

Complications of thrombophlebitis include infection of the vein, concurrent thromboembolism, or recurrent thrombophlebitis. Infection of the vein can include symptoms such as high fever, redness of the site that can spread, and purulent drainage, making it septic or suppurative thrombophlebitis. Septic thrombophlebitis is not common if there has not been a history of recent disruption of the vein such as

catheterization In medicine, a catheter ( ) is a thin tube made from medical grade materials serving a broad range of functions. Catheters are medical devices that can be inserted in the body to treat diseases or perform a surgical procedure. Catheters are man ...

venipuncture In medicine, venipuncture or venepuncture is the process of obtaining intravenous access for the purpose of venous Sampling (medicine)#blood, blood sampling (also called ''phlebotomy'') or intravenous therapy. In healthcare, this procedure is p ...

. If left untreated, it can cause septic shock and death. A

deep vein thrombosis Deep vein thrombosis (DVT) is a type of venous thrombosis involving the formation of a blood clot in a deep vein, most commonly in the legs or pelvis. A minority of DVTs occur in the arms. Symptoms can include pain, swelling, redness, and enl ...

can accompany thrombophlebitis by extension of the original thrombosis. Factors that can also predict DVT with concurrent SVT include age >60 years, male sex, bilateral SVTs, presence of systemic infection, and absence of varicose veins.

Causes

Thrombophlebitis causes include disorders related to increased tendency for

blood clotting Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a thrombus, blood clot. It results in hemostasis, the cessation of blood loss from a damaged vessel, followed by repair. The process of co ...

and reduced speed of blood in the veins such as prolonged immobility; prolonged traveling (sitting) may promote a blood clot leading to thrombophlebitis but this occurs relatively less. Long term use of intravenous catheters, intravenous antibiotics, and infusion of vein-irritating substances (such as potassium chloride or

sclerotherapy Sclerotherapy (the word reflects the Greek ''skleros'', meaning ''hard'') is a procedure used to treat blood vessel malformations ( vascular malformations) and also malformations of the lymphatic system. A medication is injected into the vessels ...

agents) can contribute to development of thrombophlebitis. Larger size, longer duration, and some sites of insertion of catheters are risk factors for developing thrombophlebitis. Patients with

varicose veins Varicose veins, also known as varicoses, are a medical condition in which superficial veins become enlarged and twisted. Although usually just a cosmetic ailment, in some cases they cause fatigue, pain, itch, itching, and cramp, nighttime leg cram ...

, current or immediately post-pregnancy, advanced age,

malignancy Malignancy () is the tendency of a medical condition to become progressively worse; the term is most familiar as a characterization of cancer. A ''malignant'' tumor contrasts with a non-cancerous ''benign'' tumor in that a malignancy is not ...

, recent trauma or surgery, autoimmune or infectious diseases including

lupus Lupus, formally called systemic lupus erythematosus (SLE), is an autoimmune disease in which the body's immune system mistakenly attacks healthy tissue in many parts of the body. Symptoms vary among people and may be mild to severe. Common ...

and

antiphospholipid syndrome Antiphospholipid syndrome, or antiphospholipid antibody syndrome (APS or APLS), is an autoimmune, hypercoagulable state caused by antiphospholipid antibodies. APS can lead to blood clots (thrombosis) in both arteries and veins, pregnancy-relate ...

, obesity, history of

venous thrombosis Venous thrombosis is the blockage of a vein caused by a thrombus (blood clot). A common form of venous thrombosis is deep vein thrombosis (DVT), when a blood clot forms in the deep veins. If a thrombus breaks off ( embolizes) and flows to the lu ...

(DVT), respiratory or cardiac failure, and history of or current exogenous estrogen use can increase risk of developing thrombophlebitis.Those with familial clotting disorders such as

protein S deficiency Protein S deficiency is a disorder associated with increased risk of venous thrombosis. Protein S, a vitamin K-dependent physiological anticoagulant, acts as a nonenzymatic cofactor to activate protein C in the degradation of factor Va and factor V ...

, protein C deficiency, or factor V Leiden are also at increased risk of thrombophlebitis. Specific disorders associated with thrombophlebitis include

superficial thrombophlebitis Superficial thrombophlebitis is a thrombosis and inflammation of superficial veins presenting as a painful induration (thickening) with erythema, often in a linear or branching configuration with a cordlike appearance. Superficial thrombophlebi ...

which affects veins near the skin surface,

which affects deeper veins, and

pulmonary embolism Pulmonary embolism (PE) is a blockage of an pulmonary artery, artery in the lungs by a substance that has moved from elsewhere in the body through the bloodstream (embolism). Symptoms of a PE may include dyspnea, shortness of breath, chest pain ...

. Thrombophlebitis can be found in people with

vasculitis Vasculitis is a group of disorders that destroy blood vessels by inflammation. Both artery, arteries and veins are affected. Lymphangitis (inflammation of lymphatic vessels) is sometimes considered a type of vasculitis. Vasculitis is primarily c ...

including Behçet's disease. Migratory thrombophlebitis, which is when there is repeated thrombophlebitis of multiple different sites that moves around the body, is strongly associated with

pancreatic cancer Pancreatic cancer arises when cell (biology), cells in the pancreas, a glandular organ behind the stomach, begin to multiply out of control and form a Neoplasm, mass. These cancerous cells have the malignant, ability to invade other parts of ...

or other malignancies. This is also known as Trousseau syndrome.

Pathophysiology

Thrombophlebitis first develops as a

, or blood clot. Virchow's triad helps describe how blood clots can begin to form in veins with increased turbulence, slowing of blood flow, or injury to the venous wall. From there, a microscopic thrombus becomes larger because it triggers inflammatory responses in the body that causes

platelet Platelets or thrombocytes () are a part of blood whose function (along with the coagulation#Coagulation factors, coagulation factors) is to react to bleeding from blood vessel injury by clumping to form a thrombus, blood clot. Platelets have no ...

s to adhere. A large thrombus in a superficial vein is what we call thrombophlebitis.

Diagnosis

The diagnosis for thrombophlebitis is primarily based on the appearance of the affected area. Frequent checks of the

pulse In medicine, the pulse refers to the rhythmic pulsations (expansion and contraction) of an artery in response to the cardiac cycle (heartbeat). The pulse may be felt ( palpated) in any place that allows an artery to be compressed near the surfac ...

blood pressure Blood pressure (BP) is the pressure of Circulatory system, circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term ...

, and

temperature Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Temperature is measurement, measured with a thermometer. It reflects the average kinetic energy of the vibrating and colliding atoms making ...

may be required. If the cause is not readily identifiable, tests may be performed to determine the cause, including the following: *

Doppler ultrasound Doppler ultrasonography is medical ultrasonography that employs the Doppler effect to perform imaging of the movement of tissues and body fluids (usually blood), and their relative velocity to the probe. By calculating the frequency shift of a ...

* Extremity

arteriography Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen (anatomy), lumen, of blood vessels and organs of the body, with particular interest in the artery, arteries, veins, and the Heart#Chambers, heart ...

Blood coagulation Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a blood clot. It results in hemostasis, the cessation of blood loss from a damaged vessel, followed by repair. The process of coagulatio ...

studies * Imaging for underlying malignancies (such as CT or

MRI Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and rad ...

) *

Genetic testing Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or ...

for blood clotting disorders such as

, protein C deficiency, or factor V Leiden

Prevention

Prevention consists of walking, drinking fluids and if currently hospitalized, utilizing

aseptic technique Asepsis is the state of being free from disease-causing micro-organisms (such as pathogenic bacteria, viruses, pathogenic fungi, and parasites). There are two categories of asepsis: medical and surgical. The modern day notion of asepsis is deri ...

to place and change IV lines. Walking is especially suggested after a long period of being seated, particularly when one travels.

Treatment

The main treatments for thrombophlebitis include utilizing pain control (such as NSAIDs), application of heat, and use of

anticoagulant An anticoagulant, commonly known as a blood thinner, is a chemical substance that prevents or reduces the coagulation of blood, prolonging the clotting time. Some occur naturally in blood-eating animals, such as leeches and mosquitoes, which ...

s. Compression stockings may help prevent these for people with varicose veins. If the cause of the thrombophlebitis is due to something else, such as underlying infection or malignancy, addressing these causes can help treat and prevent future episodes. In general, treatment may include the following: Anticoagulation is thought to help prevent future incidents of venous thromboembolic complications such as deep vein thrombosis or pulmonary embolism, but the treatment is often debated. Fondaparinux is thought to be the most effective of the anticoagulants for this purpose. However, anticoagulation is not appropriate for those with underlying

thrombocytopenia In hematology, thrombocytopenia is a condition characterized by abnormally low levels of platelets (also known as thrombocytes) in the blood. Low levels of platelets in turn may lead to prolonged or excessive bleeding. It is the most common coag ...

or risk of major bleeding. For septic thrombophlebitis, treatment includes use of intravenous antibiotics, possible anticoagulation, and evaluation by a surgical team for possible intervention. If there is an

abscess An abscess is a collection of pus that has built up within the tissue of the body, usually caused by bacterial infection. Signs and symptoms of abscesses include redness, pain, warmth, and swelling. The swelling may feel fluid-filled when pre ...

present, it may need to be drained surgically. Overall, prognosis is positive if patients are low-risk at baseline. A very low number (less than 1% in one study) of patients go on to develop other life-threatening blood clots such as deep vein thrombosis or pulmonary embolism within 3 months.

Epidemiology

Thrombophlebitis occurs almost equally between women and men, though males do have a slightly higher possibility. The average age of developing thrombophlebitis, based on analyzed incidents, is 54 for men and 58 for women.

References

External links

{{Authority control Vascular diseases Inflammations Diseases of veins, lymphatic vessels and lymph nodes