A 27-year-old woman presents with intermittent palpitations and atypical chest pain. Vital signs: BP 118/76 mmHg, HR 88 bpm, RR 16/min, temp 37°C, SpO2 98% on room air. Cardiac examination reveals a midsystolic click followed by a late systolic murmur that intensifies when standing from a squat position. Chest X-ray shows normal cardiac silhouette. She denies dyspnea. Echocardiography demonstrates superior leaflet prolapse with mild mitral regurgitation. Which diagnosis best explains these findings?
- A)Mitral valve prolapseGABARITO
- B)Hypertrophic cardiomyopathy
- C)Tricuspid regurgitation
- D)Mitral stenosis
- E)Aortic stenosis
Explicação
The midsystolic click and late systolic murmur that intensify with decreased preload are classic for mitral valve prolapse. Standing decreases left ventricular volume, causing earlier prolapse of the valve into the left atrium. MVP is commonly due to myxomatou... Ver explicação completa e trilha adaptativa →