Assessment of phonocardiographical investigations among seafarers.
A total of 763 seafarers were selected at random for the examinations. Their number represented 9.82% of the total employed. About 86.63% of them were examined. Another group examined were 202 college undergraduates--all the undergraduates of the second year of studies. The average age of seafarers was 41.14 +/- 8.84 years, and of undergraduates 22.54 +/- 1.29 years. A normal heart first sound was recorded in 95.41% of seafarers, normal second sound in 95.94%, and in 95.05% and 95.05% of the undergraduates, respectively. Normal third and fourth sounds were recorded jointly in 4.45% of seafarers and 0.99% of the undergraduates, whereas abnormal ones in 1.05% of seafarers and 0.99% of the undergraduates. Aortic ejection sound and systolic zone clicks were detected only in seafarers: in 0.79% and 1.31% of the subjects, respectively. Systolic zone murmurs were recorded in 4.19% of the seafarers, including those with heart defects (1.44%), therein mitral valve insufficiency (0.79%), mitral valve prolapse syndrome (0.39%) and aortal valve stenosis (0.26%). In all other cases the recorded heart murmurs in undergraduates and seafarers were considered functional (not pathological).
Institute of Maritime and Tropical Medicine, Gdynia.
J
J
Waśkiewicz
D000328:Adult; D001018:Aortic Diseases / Q000453:epidemiology; D001024:Aortic Valve Stenosis / Q000453:epidemiology; D001145:Arrhythmias, Cardiac / Q000453:epidemiology; D001161:Arteriosclerosis / Q000453:epidemiology; D002037:Bundle-Branch Block / Q000453:epidemiology; D002303:Cardiac Output, Low / Q000453:epidemiology; D006337:Heart Murmurs / Q000453:epidemiology*; D006347:Heart Sounds; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000453:epidemiology; D010701:Phonocardiography; D011044:Poland / Q000453:epidemiology; D011226:Pre-Excitation Syndromes / Q000453:epidemiology; D012767:Ships; D013334:Students