Aeromedical assessment for the civil pilot with mechanical cardiac valve-1 case attached

Abstract

Objective To strengthen the understanding of the effects of mechanical cardiac valve replacement and to improve assessment by analyzing civil pilot′s case and reviewing correlative literatures. Methods The clinical data of a civil pilot with mechanical aortic valve was introduced. Medical assessment method of the pilot with mechanical valve was analyzed and discussed. Results The pilot was found pulse gradient pressure enlargement in the physical examination 2 years ago. Echocardiography showed obvious left ventricle hypertrophy, left atrial enlargement and severe aortic valve backstreaming. Ejection factor was 52% of the lower limit of normal range. He received mechanical aortic valve replacement 1 month later and applied for special assessment 1 year after surgery. He was specially qualified with limited flight assignment and flying within 50 h per month on the base of his steady hemagglutination control and good heart function, as well as basic on his self-cognition, close follow-up and rigorous supervision by flight surgeon. He had flied for 200 h without any accident or incident due to medical reasons. Conclusions The aeromedical assessment for the civil pilot with mechanical cardiac valve should follow the principles of carrying individual evaluation, risk assessment and caution. Civil pilot would get limited flying qualification if his heart function and hemagglutination control are within the acceptable range, no such risks or potential risks as haemorrhage, embolism and valve dysfunction, as well as the sufficient self-cognition, close follow-up, scheduled consultation and rigorous supervision by flight surgeon. Key words: Aortic valve; Heart valve prosthesis; Eligibility determination