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Ventricular Septal Defect

A congenital cardiac anomaly featuring an abnormal opening in the wall separating the heart's two lower chambers.

Key Facts

The defect permits direct mixing of oxygenated and deoxygenated blood within the ventricles.
In tetralogy of fallot, it facilitates a right-to-left shunt that worsens systemic oxygen delivery.
The size and location of the opening heavily influence disease severity and clinical presentation.
It is typically identified during routine cardiac auscultation and confirmed with advanced imaging.

A core anatomical abnormality that allows blood mixing between heart chambers.

Turbulent blood flow across the defect commonly produces an audible murmur.

Provides definitive visualization and measurement of the septal opening.