Systolic honks in young children

Heart murmurs audible across the room in children with mitral valve prolapse.

“…6 The clinical, electrocardiographic, radiological, and echocardiographic features have been well described since its recognition as a distinct clinical entity by Barlow in 1963.6-@ Several reviews have mentioned patients being aware of their own murmurs,8 9 but to our present knowledge, only seven patients, including Osler's case, with murmurs loud enough to be heard across Heart murmurs audible across the room in children with mitral valve prolapse the room, have been described in detail.' [10][11][12][13][14] Six were girls ranging in age from 3 to 12 years and one was a boy aged 12 years. This female preponderance, a well-recognised feature of mitral valve prolapse, was also seen in our patients.…”

Systolic honk in heart failure: Its origin and mechanism of production

“…The systolic honk or whoop, an unusual auscultatory phenomenon, has, in most cases, been ascribed to mitral valve prolapse (1,4) with or without mitral regurgitation, and found in almost every age group from childhood onward. The involvement of the tricuspid valve in'the production of these systolic honks is not well recognized in the literature (5,14).…”

“…Echocardiography has added another noninvasive dimension to the study of these musical murmurs. Feiner et al (4) recently presented three healthy children with systolic honks and prolapse of the mitral valve on echocardiography, while one patient with tricuspid honk presented by Venkatarman et al (15) had right ventricular failure and tricuspid regurgitation. Our patients with biventricular failure, on the other hand, had no echocardiographic evidence of mitral valve prolapse, but had systolic fluttering of the tricuspid valve, which appeared and coincided with the systolic honk.…”