CARDIOLOGY
VENTRICULAR SEPTAL DEFECT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The defect is small
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The pulmonary artery pressure is normal
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The pulmonary vascular resistance is high
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The LV pressure is low
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Detailed explanation-1: -This murmur is rarely heard because the tricuspid valve annulus is bigger than the pulmonary valve annulus.
Detailed explanation-2: -A murmur is often not heard at birth. It is only with time and pressure changes that flow across the hole between the pumping chambers can be heard as a murmur. A smaller hole may make a louder noise than a large hole, and the murmur may get louder as the ventricular septal defect closes.
Detailed explanation-3: -The murmur of VSD is typically pan-systolic best heard in the left lower sternal border; it is harsh and loud in small defects but softer and less intense in large ones. Handgrips increase afterload, increasing the strength of the murmur. Infundibular defects are best heard in the pulmonic area.
Detailed explanation-4: -The blood flowing through the hole creates an extra noise, which is known as a heart murmur. Doctors can hear the heart murmur when they listen to the heart with a stethoscope. VSDs can be in different places on the septum and can vary in size.