Air Travel and Adults With Cyanotic Congenital Heart Disease
| Autor: | Erik J. Meijboom, Paul A. Hutter, Johan C. Fischer, Dagmar de Bruijn, Marinus Simons, Theo M. Hoorntje, Eric Harinck, Avram A. Benatar |
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| Rok vydání: | 1996 |
| Předmět: |
Adult
Heart Defects Congenital Male medicine.medical_specialty Adolescent Heart disease Cyanotic congenital heart disease Hypoxemia Physiology (medical) Internal medicine medicine Humans Lactic Acid Air travel 2 3-Diphosphoglycerate business.industry Diphosphoglyceric Acids Control subjects medicine.disease Surgery Oxygen Hypobaric chamber Aerospace Medicine Lactates Cardiology Female medicine.symptom Cardiology and Cardiovascular Medicine business Complication Blood ph |
| Zdroj: | Circulation. 93:272-276 |
| ISSN: | 1524-4539 0009-7322 |
| DOI: | 10.1161/01.cir.93.2.272 |
| Popis: | Background Concern has been expressed that a reduction of partial oxygen pressure during flight in commercial aircraft may induce dangerous hypoxemia in patients with cyanotic congenital heart disease. Methods and Results To evaluate the validity of this concern, the transcutaneous Sa o 2 was measured in 12 adults with this type of heart disease and 27 control subjects during simulated commercial flights of 1.5 and 7 hours in a hypobaric chamber. Ten of those patients and 6 control subjects also were evaluated during two actual flights of approximately 2.5 hours in a DC-10 and an A-310, respectively. During the prolonged simulated and actual flights, the capillary blood pH, gases, and lactic acid were analyzed in the patients and during one of the actual flights also in the control subjects. During the simulated flights the Sa o 2 was at all times lower in the patients than in the control subjects. However, the maximal mean actual percentage decrease, as compared with sea level values, did not exceed 8.8% in either patients or control subjects. During the actual flights, this maximal decrease in the patients was 6%. In-flight reduction of the capillary P o 2 was considerable in the control subjects but not in the patients. It is our hypothesis that the lack of a significant decrease of the P o 2 in the patients might possibly be due to a high concentration of 2.3 diphosphoglycerate in the red cells. The flights had no influence on the capillary blood pH, P co 2 , bicarbonate, or lactic acid levels in either patients or control subjects. Conclusions Atmospheric pressure changes during commercial air travel do not appear to be detrimental to patients with cyanotic congenital heart disease. |
| Databáze: | OpenAIRE |
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