Dembo A G, Zemtsovskiĭ E V
Kardiologiia. 1979 Jun;19(6):38-43.
The syndrome of mitral valve prolapse was diagnosed by means of echocardiography in 11 of 28 top-class athletes with functional systolic murmurs and in 4 of 16 athletes examined irrespective of the physical findings and complaints. The echocardiographic manifestations of the prolapse consisted in delayed systolic flexion of the posterior cusp (3 cases), early systolic prolapse of the posterior cusp (4) and holosystolic prolapse of both cusps (8). It is concluded that the syndrome of mitral valve prolapse occurs in athletes far more often than generally supposed and may be the cause of systolic murmurs, and the development of myocardial dystrophy due to chronic physical overstrain and disorders of cardiac rhythm.
通过超声心动图诊断出，28名有功能性收缩期杂音的顶级运动员中有11人患有二尖瓣脱垂综合征，在16名接受检查的运动员中，有4人无论身体检查结果和主诉如何，均被诊断出患有该综合征。脱垂的超声心动图表现包括后叶瓣叶收缩期延迟弯曲（3例）、后叶瓣叶收缩期早期脱垂（4例）和双叶瓣叶全收缩期脱垂（8例）。得出的结论是，二尖瓣脱垂综合征在运动员中的发生频率远比一般认为的要高，可能是收缩期杂音的原因，以及慢性身体过度劳累和心律紊乱导致心肌营养不良的原因。
