q 4

[Anonymous]

A 24-year-old football player notifies his physician that he experienced palpitations, precordial pain episodes and lost his conscience twice. His blood pressure, CBC (complete blood count), ESR (erythrocytes sedimentation rate) and coronary angiography are normal. Echocardiography reveals asymmetric ventricular sept hypertrophy. Which of the following features is the most appropriate for this patient condition ?

A-coxackie virus infection is frequently associated
B-cardiac amiloidosis is implicated in ethiology
C-autsomal dominant inheritance of the pathological findings
D- right ventricular outflow obstruction couse syncope episodes in this pacient

[Potatooo]

answer is D?

[Anonymous]

i think they're talking about hypertrophic cardiomyopathy. the give away is the young athelete with asymmetrical interventricular septal hypertophy, but other normal findings. this dz is auto dom so my guess is c. the obstuction of blood flow is due to the anterior leaflet of mitral valve being drawn against the intervent septum by venturi effect (neg vacuum when blood passes). see pics


ref: Kaplan goljan sec 1 pg 126 and sec 2 pgs 72-73, ahajournals.org, .cardiomyopathy.org