Dandy-Walker Malformation: A Clinical and Surgical Outcome Analysis

Area of Science:

• Neurosurgery
• Pediatric Neurology
• Congenital Malformations

Background:

• Dandy-Walker Malformation (DWM) is a congenital brain malformation.
• Hydrocephalus is a common associated condition requiring surgical intervention.
• The efficacy and safety of surgical treatments for DWM, particularly shunt placement, require ongoing evaluation.

Purpose of the Study:

• To evaluate the clinical presentations, surgical complications, and mortality rates in patients with Dandy-Walker Malformation (DWM) following dual shunt surgery using a y-connector.
• To identify the most frequent complications and outcomes within one month post-surgery.

Main Methods:

• A case series study was conducted involving 70 patients diagnosed with DWM and hydrocephalus.
• Patients underwent combined cystoperitoneal and ventriculoperitoneal shunting with a y-connector.
• Data on clinical presentation, surgical complications (infection, shunt malfunction, hemorrhage), and mortality were collected and analyzed.

Main Results:

• Hydrocephalus was present in all 70 patients, with cerebellar signs in 86%.
• The most common complications within one month included infection and shunt fracture/dislocation (10% each), followed by malpositioning and blockage (8.5% each).
• Intracranial hemorrhage occurred in 7.14% of patients, with a low mortality rate of 1.42%.

Conclusions:

• Hydrocephalus is the predominant clinical presentation in Dandy-Walker Malformation patients.
• Shunt malfunction and infection are the most frequent complications following surgical intervention.
• Dual shunt with a y-connector demonstrates a low mortality rate compared to other shunting methods for DWM treatment.