Ventricular asymmetry is a known and common finding after ventricular shunting.
Asymmetry result due to significantly greater decrease in ventricular size on the side of the ventricular shunt catheter and isolation of the contra lateral ventricle from adequate decompression.
Studies have shown that contra lateral placement of tip catheter after perforation of the septum pellucidum that is transeptal placement of catheter would significantly decrease the incidence of post shunting ventricular asymmetry. A special cathter is used which consist of two sets of holes, such that holes are located in both the lateral ventricles.
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