Trigone point as an alternative location for ventricular shunt insertion

Background:Hydrocephalus is a condition in which cerebrospinal fluid (CSS) buildup in the ventricles is caused by excessive CSS production or disturbance of CSS circulation or absorption. Insertion of a shunt catheter into the lateral ventricle can be performed at the Kocher, Keen, Dandy, Frazier, Kaufmann, or Tubbs points. This study aims to evaluate the trigone point as an alternative location for ventricular shunt insertion.Methods:This is a retrospective study. We performed a three-dimensional head CT scan reconstruction of hydrocephalus patients; then, we calculated the vertical and horizontal distances perpendicular to each other from the upper edge of the auricle that intersects the trigone point on the right and left sides of the patient. Data were analyzed using SPSS version 26.0 for Windows.Results:A total of 30 hydrocephalus patients at Kariadi Hospital Semarang from 2021 - 2022 were enrolled in this study. We got the averages of the vertical line is 25.05 mm and the horizontal is 33.00 mm for the right trigone point. In addition, the average vertical line is 25.78 mm and the horizontal line is 34.72 mm for the left trigone point. There was no significant difference between the vertical distance of the right and left trigone points (p=0.578) and the horizontal distance of the right and left trigone points (p=0.185). We found no significant difference between the location of the right and left trigone points.Conclusion:Trigone point can be an alternative location for ventricular shunt installation