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Symptoms and Signs – Differential Diagnosis of Splitting of S2
Wide
Delayed activation of right ventricle
RBBB, left ventricular pacing, left ventricular preexcitation (WolffParkinson-
White syndrome)

Prolonged right ventricular ejection time
Pulmonary stenosis, pulmonary hypertension
Reduced Left ventricular ejection time
Mitral regurgitation, VSD

Wide fixed splitting
ASD

Reversed splitting
Delayed activation of left ventricle
LBBB, right ventricular pacing, right ventricular preexcitation
Prolonged left ventricular ejection time
Aortic stenosis, HOCM, hypertension, PDA


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Kembara Xtra 

Facts about medicine and its subtopic such as anatomy, physiology, biochemistry, pharmacology, medicine, pediatrics, psychiatry, obstetrics and gynecology and surgery.