Currently no one doubts the existence of so-called economy class syndrome. Evidence indicates that the risk begins after a flight over 6 hours.
There is sufficient scientific data to ensure that long plane trips are a risk fac ¬ tor in the development of deep vein thrombosis (DVT) and Pulmonary Embolism (ТЕР).
But the evidence also points to the probability they are even taking place from 6 to 9 hours of flight, the incidence of no more than 5 percent, even in high-risk passengers.
Following the death in 2001 of Emma Christoffersen on arrival at Heathrow after a journey of more than 20 hours, the biggest controversy has been raised recently about the relationship of flights with occurrence of venous thrombosis and pulmonary embolism.
Actually anyone who is sitting for a long time can produce blood clots in the legs, which are released into the bloodstream and go to the heart and lungs, a process called pulmonary embolism.
What is it and because it takes the economy class syndrome
Why "tourist class"?
in 1954 first described a case of DVT after 14 hours of flight. In 1977 appeared in the literature the first report ТЕР and travel by plane, three TCP is relaciion in 1988, when he coined the term 'economy class syndrome "even when one of the authors of the report was one of the described six cases and had traveled executive. Whatever the case, the term referred to thrombotic events related to flights under certain circumstances. And while not a scientifically correct term (now the preferred expression of thrombosis of the traveler), it is clear the success it has had.
traveler's thrombosis in the legs
we have two sets venous saphenous veins and superficial or deep veins. A third system of communicating or perforating veins that carries blood from the superficial to the deep system and not vice versa.
DVT is the formation of a blood clot in a vein deep venous system. Not to be confused with superficial phlebitis or thrombophlebitis of the legs, much more frequent (about especially in people with varicose veins) and much less dangerous. Most of the time it endangers the lives of people, but sometimes, one of its complications can be fatal: the pulmonary thromboembolism (ТЕР). A piece of clot lodged in the vein can be released (plunger) and be carried by the circulation to the heart and thence to the lungs where it causes breathing difficulties. Much more rarely the plunger can stay in other organs including the brain.
What are the symptoms?
symptoms are highly specific. In many cases there are no demonstrations and other must have a high degree of suspicion. The higher and occlusive thrombus is the more obvious are the signs and symptoms. In the DVT can be pain in the calf or thigh, blue (cyanosis), swelling, skin temperature.
Any general symptom (fever, chest pain, rapid pulse, anxiety) should be considered as warning signs j, for possible respiratory compromise, but the most frequent are dyspnea (shortness of breath), syncope, and pleuritic pain with symptoms of TVR
Where in relation to the / cheap symptoms usually appear during the trip or immediately after, but sometimes occur several weeks.
What is its impact?
Overall, the incidence of the syndrome is low, partly because the population using the planes are healthy which themselves have a lower risk of being affected. In a study to monitor passengers on the Madrid-Barajas airport between 1995 and 2004, reference was 0.39 cases per million passengers ТЕР, incidence increased to 1.65 cases on flights longer than 8 hours .
In all studies published to date, the incidence is low, having a substantial increase for flights over 8 hours and more than 8,000 km. The few studies that assess the impact symptomatic DVT are below the 0.28 percent and the symptoms in less than 10 percent of passengers, always depending on the time and / or distance.
Why thrombus is generated and how it can affect the flight? Three
underlying conditions that predispose to thrombosis: decreased blood flow (ecstasy), lesions of the vein wall, and changes in the system of blood clotting.
0 comments:
Post a Comment