A 19 year old male collegiate basketball player collapses briefly during conditioning drills. He reports several months of exertional chest tightness. His uncle died suddenly at age 32. Physical examination reveals a harsh systolic murmur along the left sternal border that becomes louder during Valsalva. Which of the following is the most likely diagnosis?
- A)Hypertrophic cardiomyopathyGABARITO
- B)Mitral valve prolapse
- C)Ventricular septal defect
- D)Aortic stenosis
- E)Mitral regurgitation
Explicação
Hypertrophic cardiomyopathy is correct. The combination of exertional syncope, family history of sudden death, and a systolic murmur that increases with Valsalva strongly indicates hypertrophic cardiomyopathy. Decreased preload worsens left ventricular outflow... Ver explicação completa e trilha adaptativa →