ventricular septal defect

= VSD
a congenital defect of the heart in which there is a hole in the partition (septum) separating the two ventricles (see septal defect). In 25% of patients there are other defects present. 50% of VSDs close spontaneously. If the hole is large, blood is diverted to the lungs at a greater pressure than usual and pulmonary hypertension can occur, which becomes irreversible and progressive (Eisenmenger reaction). Early surgical intervention can prevent this.

The new mediacal dictionary. 2014.

Look at other dictionaries:

  • ventricular septal defect — n a congenital defect in the interventricular septum abbr. VSD * * * a congenital cardiac anomaly in which there is persistent patency of the ventricular septum in either the muscular or fibrous (membranous) portions, most often due to failure of …   Medical dictionary

  • Ventricular septal defect — Infobox Disease Name = PAGENAME Caption = Echocardiographic image of a moderate ventricular septal defect in the mid muscular part of the septum. The trace in the lower left shows the flow during one complete cardiac cycle and the red mark the… …   Wikipedia

  • ventricular septal defect — a congenital defect of the heart in which there is a hole in the partition (septum) separating the two ventricles (see septal defect); it is the most common congenital heart disease. In 25% of patients there are other defects present. 50% of VSDs …   Medical dictionary

  • ventricular septal defect — noun a common congenital heart defect; an abnormal opening in the septum dividing the ventricles allows blood to pass directly from the left to the right ventricle; large openings may cause congestive heart failure • Hypernyms: ↑septal defect •… …   Useful english dictionary

  • ventricular septal defect — ▪ pathology       opening in the partition between the two ventricles, or lower chambers, of the heart. Such defects are congenital and may be accompanied by other congenital defects of the heart, most commonly pulmonary stenosis.       The… …   Universalium

  • Ventricular septal defect (VSD) — A hole in the septum (the wall) between the lower chambers of the heart (the ventricles). Ventricular Septal Defect is the most common type of heart malformation (congenital heart disease). At least 1 baby in every 500 is born with a VSD. A VSD… …   Medical dictionary

  • septal defect — a hole in the partition (septum) between the left and right halves of the heart. This abnormal communication is congenital due to an abnormality of heart development in the fetus. It may be found between the two atria (see atrial septal defect)… …   Medical dictionary

  • septal defect — a hole in the partition (septum) between the left and right halves of the heart. This abnormal communication is congenital due to an abnormality of heart development in the fetus. It may be found between the two atria (see atrial septal defect)… …   The new mediacal dictionary

  • septal defect — noun a congenital abnormality in the septum between the left and right sides of the heart • Hypernyms: ↑congenital heart defect • Hyponyms: ↑atrial septal defect, ↑ventricular septal defect …   Useful english dictionary

  • Defect, ventricular septal (VSD) — A hole in the septum (the wall) between the lower chambers of the heart (the ventricles). Ventricular Septal Defect is the most common type of heart malformation (congenital heart disease). At least 1 baby in every 500 is born with a VSD. A VSD… …   Medical dictionary

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