Minimal VSD. Blood pressure 94/54. A very minor ventricular shunt that does not burden circulation in any way nor does it cause symptoms. The amount of blood flowing from the left ventricle to the right is very small, but because of the pressure difference the flow is turbulent and fast. Here the flow is heard as a short second-degree early systolic blow. Note on the phonogram: the murmur begins from the first heart sound. Because the shunt has time to close before the aortic valve has closed as the heart contracts, the murmur ends at midsystole. High flow velocity is seen as high frequencies. Age 6.5 years, height 108.0 cm, weight 18.0 kg. Area of auscultation: left third ic (LIC3).