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- Risk factors for central sleep apnea include male sex, advanced age, atrial fibrillation and hypocapnia
- Smoker, severe airway obstruction (COPD), RV hypertrophy and dilation, elevated pulmonary artery systolic pressure, PaO2 <60 mm Hg at rest - oxygen therapy prevents increase in pulmonary artery pressure
- V˙E /V˙O2 slope during exercise is best correlate of prognosis of HF
- Diagnosis of Ehlers-Danlos syndrome is based on clinical and family history and DNA sequencing
- NSTEMI no high-risk features, CKD - next pharmacologic nuclear stress
- After successful repair of coarctation of aorta, systemic hypertension frequently persists
- Amiodarone can significantly increase digoxin concentrations
- Tenderness to palpation along costophrenic margin, normal troponin - No further testing
- Prior chronic aspirin use in unstable angina or NSTEMI is high risk feature
- AVR with bioprosthetic valve after 3 month of warfarin, asymptomatic, ECG sinus rhythm, echo normally functioning prosthetic valve, chamber dimensions and biventricular function normal, advise antibiotic prophylaxis and yearly visits (warfarin if LV dysfunction, prior embolic event, atrial fibrillation)