[Management of obstructive hydrocephalus before posterior fossa tumor resection in children]

Wenyuan Ji1, Ping Liang, Yudong Zhou

  • 1Department of Neurosurgery, Children's Hospital Affiliated to Chongqing Medical University, Chongqing 400014, China.E-mail: jiwenyuanfengxue@126.com.

Insights

Ommaya reservoir drainage is a safe and effective method for managing obstructive hydrocephalus in pediatric posterior fossa tumors, showing fewer complications than ventriculo-peritoneal shunting.

Area of Science:

  • Pediatric Neurosurgery
  • Oncology
  • Neurology

Background:

  • Obstructive hydrocephalus is a common complication of posterior fossa tumors in children.
  • Effective management of hydrocephalus is crucial before tumor resection to reduce intracranial pressure and improve surgical outcomes.

Purpose of the Study:

  • To compare the efficacy and safety of preoperative Ommaya external drainage versus ventriculo-peritoneal shunting for managing obstructive hydrocephalus in pediatric patients with posterior fossa tumors.

Main Methods:

  • Retrospective review of clinical data from 162 pediatric patients with posterior fossa tumors and obstructive hydrocephalus.
  • Patients were divided into two groups: 90 underwent preoperative Ommaya external drainage (Group A) and 72 underwent preoperative ventriculo-peritoneal shunting (Group B).
  • Therapeutic effects and postoperative complications were evaluated and compared between the groups.

Main Results:

  • Postoperative complications occurred in 67 cases, including infection, shunt blockage, subdural hematoma/effusion, ventricle fissure syndrome, and tumor hernia.
  • A significant difference was observed in the incidence of shunt blockage (P=0.047) and subdural hematoma or effusion (P=0.039) between the groups.
  • No significant differences were found in the incidences of intracranial infection (P=0.478) or tumor hernia (P=0.462).

Conclusions:

  • Ommaya reservoir provides good results for treating acute hydrocephalus in children with posterior fossa tumors.
  • Preoperative Ommaya external drainage is associated with less trauma and fewer complications compared to ventriculo-peritoneal shunting.
  • This approach offers a simple and effective surgical option for managing hydrocephalus in this pediatric population.
Abstract