The heart exhibits right to left communication between the fibres of the muscular part of the interventricular septum

Abstract

(Folia Morphol 2014; 73, 1: 42-50)

Interventricular Vessel of the Heart

“…The limit was interventricular vessel of the heart between the right and the left muscular part of the IVS). The figures will be more informative together with the Reference [ 6 ]. That is an open anatomical study.…”

“…The interventricular vessel closed with a dense signal of flow as the blood ran off the interventricular vessel into the LV at the very early systole. The velocity was about 2.3 m/s and the gradient was less than 23 mm Hg (right arrow) [ 1 , 2 , 6 ].…”

“…The interventricular vessel exhibits 2 - 3 oval 2 × 5 mm openings in the left central muscular part of the IVS surrounded by the interventricular sphincter. Agenesis of the interventricular sphincter in the middle of the left IVS may be the cause of the single muscular ventricular septal defect of the left central muscular part of the IVS, with numerous sieve like perforations through the right muscular part of the IVS [ 6 ]. The interventricular sphincter and the interventricular vessel are feasible to be patent by relaxing and widening of the helical heart at the right atrial filling phase at the end of the fetal diastole [ 6 , 7 ].…”

“…Agenesis of the interventricular sphincter in the middle of the left IVS may be the cause of the single muscular ventricular septal defect of the left central muscular part of the IVS, with numerous sieve like perforations through the right muscular part of the IVS [ 6 ]. The interventricular sphincter and the interventricular vessel are feasible to be patent by relaxing and widening of the helical heart at the right atrial filling phase at the end of the fetal diastole [ 6 , 7 ]. The left to right communication does not result as the earliest left ventricular activation closes the interventricular sphincter [ 1 , 2 ].…”

Interventricular vessel of the heart and diuretics

“…This flow may generate the abnormal fourth heart sound common in hypertrophy of systemic hypertension and in ischemic heart disease. The venous flow moves toward the left outflow tract in the LV 5,6. The fourth heart sound appears at the 80% submaximal heart rate during a treadmill stress test in normal hearts 7.…”