Aviation medicine, also called flight medicine or aerospace medicine, is a preventive or occupational medicine in which the patients/subjects are pilots, aircrews, or astronauts. The specialty strives to treat or prevent conditions to which aircrews are particularly susceptible, applies medical knowledge to the

human factors Human factors and ergonomics (commonly referred to as human factors) is the application of psychological and physiological principles to the engineering and design of products, processes, and systems. Four primary goals of human factors learnin ...

aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot a ...

and is thus a critical component of

aviation safety Aviation safety is the study and practice of managing risks in aviation. This includes preventing aviation accidents and incidents through research, educating air travel personnel, passengers and the general public, as well as the design of airc ...

. A military practitioner of aviation medicine may be called a flight surgeon and a civilian practitioner is an aviation medical examiner. One of the biggest differences between the military and civilian flight doctors is the military flight surgeon's requirement to log flight hours.

Overview

Broadly defined, this subdiscipline endeavors to discover and prevent various adverse physiological responses to hostile biologic and physical stresses encountered in the

aerospace Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial and military applications. Aerospace engineering consists of aeronautics and astr ...

environment. Problems range from life support measures for astronauts to recognizing an ear block in an infant traveling on an airliner with elevated cabin pressure altitude. Aeromedical certification of pilots, aircrew and patients is also part of aviation medicine. A final subdivision is the AeroMedical Transportation Specialty. These military and civilian specialists are concerned with protecting aircrew and patients who are transported by AirEvac aircraft (helicopters or fixed-wing airplanes). Atmospheric physics potentially affect all air travelers regardless of the aircraft. As humans ascend through the first 9100–12,300 m (30,000–40,000 ft), temperature decreases linearly at an average rate of 2 °C (3.6 °F) per 305 m (1000 ft). If sea-level temperature is 16 °C (60 °F), the outside air temperature is approximately −57 °C (−70 °F) at 10,700 m (35,000 ft). Pressure and humidity also decline, and aircrew are exposed to radiation, vibration and acceleration forces (the latter are also known as "g" forces). Aircraft life support systems such as oxygen, heat and pressurization are the first line of defense against most of the hostile aerospace environment. Higher performance aircraft provide more sophisticated life support equipment, such as "G-suits" to help the body resist the adverse effects of acceleration, along with pressure breathing apparatus, or

ejection seat In aircraft, an ejection seat or ejector seat is a system designed to rescue the pilot or other crew of an aircraft (usually military) in an emergency. In most designs, the seat is propelled out of the aircraft by an explosive charge or rock ...

s or other escape equipment. Every factor contributing to a safe flight has a failure rate. The crew of an aircraft is no different. Aviation medicine aims to keep this rate in the humans involved equal to or below a specified risk level. This standard of risk is also applied to airframe,

avionics Avionics (a blend of ''aviation'' and ''electronics'') are the electronic systems used on aircraft. Avionic systems include communications, navigation, the display and management of multiple systems, and the hundreds of systems that are fit ...

and systems associated with flights. AeroMedical examinations aim at screening for elevation in risk of sudden incapacitation, such as a tendency towards

myocardial infarction A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to the coronary artery of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may ...

(heart attacks),

epilepsy Epilepsy is a group of non-communicable neurological disorders characterized by recurrent epileptic seizures. Epileptic seizures can vary from brief and nearly undetectable periods to long periods of vigorous shaking due to abnormal electrica ...

or the presence of metabolic conditions

diabetes Diabetes, also known as diabetes mellitus, is a group of metabolic disorders characterized by a high blood sugar level ( hyperglycemia) over a prolonged period of time. Symptoms often include frequent urination, increased thirst and increased ...

, etc. which may lead to hazardous condition at altitude. The goal of the AeroMedical Examination is to protect the life and health of pilots and passengers by making reasonable medical assurance that an individual is fit to fly. Other screened conditions such as colour blindness can prevent a person from flying because of an inability to perform a function that is necessary. In this case to tell green from red. These specialized medical exams consist of physical examinations performed by an Aviation Medical Examiner or a military Flight Surgeon, doctors trained to screen potential aircrew for identifiable medical conditions that could lead to problems while performing airborne duties. In addition, this unique population of aircrews is a high-risk group for several diseases and harmful conditions due to irregular work shifts with irregular sleeping and irregular meals (usually carbonated drinks and high energy snacks) and work-related stress.

References

External links

Aeromedics - medical retrieval specialists

Aerospace Medical Association

Civil Aerospace Medical Institute

Directory of US AMEs designated to perform FAA Aeromedical Examinations for pilots and aircrew

Aviation Medicine
from the Aviation Medicine Unit at the Department of Medicine, Wellington School of Medicine and Health Sciences, University of Otago, New Zealand.

Aviation Medicine International (AMI) Inc.

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Overview

See also

References

Further reading

External links