Ventricular septal
Ventricular septal defect
In 1879 Roger described and indicated the underlying pathology of a ventricular septal defect , Abbott in 1932 correlated the pathology with the clinical findings in a number of cases. (41)
in 1948 Murray made an attempt to repair a defect in the human by passing a strip of fascia through the defect. (42) and In 1952 Baily Attempted to pull a tube of percardium through the defect.(43) King modified this technique with tactile guidance(44)Lillhei using cross-circulation technique and open cardiotomy was successful in closing a ventricular septal defect in a 4-years old boy(45)ventricular septal defect is a failure closure causing separation of the right ventricular from the left.(46) Ventricular septal defects denote any direct communication between the right and left ventricules. (47)
The intraventricular septal defect is a malformation that results in a hemodynamic communication between the right and the left ventricular. Most VSD occur in solution, however 40% occur as part of a near more other structural cardiac a abnormalities(46)defects in the intraventricular septum may occur in a variety of location. (48)
Ventricular septal defect may occur on isolated anomaly or as part of complex of anomalies such as tetralogy of fallot.(47)
Ventricular septal defect is the commonest congenital abnormality accounting for 38.3% of the cardiac patients entered in the liverpool registry. (49 Ventricular septal defects are said to be the most common congenital heart lesion and to account for from 8 to 12 percent as isolated anomalies.(50) Most ventricular septal defects are the result of failure of proper fusion of the upper end of the muscular ventricular septum. (48) Defect is usually about 1 cm in diameter and it commonly lies at the top of the inter ventricular septum. (41)
