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Updated: May 15, 2026

The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects
09:00

The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects

Published on: October 2, 2014

Effect of cisternal drainage on the shunt dependency following aneurysmal subarachnoid hemorrhage

Sung Hun Kim1, Pil-Wook Chung, Yu Sam Won

  • 1Department of Neurology, College of Medicine, Kangwon National University, Chuncheon, Korea.

Journal of Korean Neurosurgical Society
|January 17, 2013
PubMed

Insights

Elderly patients with aneurysmal subarachnoid hemorrhage (aSAH) have a higher incidence of shunt-dependent chronic hydrocephalus (SDCH). Postoperative cisternal drainage did not influence SDCH development in this age group.

Area of Science:

  • Neurosurgery
  • Neurology
  • Critical Care Medicine

Background:

  • Shunt-dependent chronic hydrocephalus (SDCH) is a significant complication following aneurysmal subarachnoid hemorrhage (aSAH).
  • Advanced age is a recognized risk factor for developing SDCH after aSAH.

Purpose of the Study:

  • To evaluate the impact of postoperative cisternal drainage on SDCH incidence in elderly aSAH patients.
  • To assess the clinical outcomes associated with SDCH in this demographic.

Main Methods:

  • A study involving 59 patients who underwent aneurysmal clipping with cisternal cerebrospinal fluid (CSF) drainage.
  • Patients were stratified into two age groups: <70 years and ≥70 years.
  • Analysis of clinical variables including age, aneurysm location, CT findings, and CSF drainage parameters.

Main Results:

  • SDCH occurred in 33.9% of all patients, requiring shunt placement.
  • In elderly patients (≥70 years), neither the duration nor the volume of CSF drainage correlated with the development of chronic hydrocephalus.

Conclusions:

  • Elderly patients with aSAH exhibit a higher incidence of SDCH, yet maintain acceptable clinical outcomes.
  • Cisternal drainage parameters do not appear to influence the subsequent development of chronic hydrocephalus in patients aged 70 and older.
Abstract

Keywords:
Acute hydrocephalusAneurysmal subarachnoid hemorrhageIntraventricular hemorrhageOld ageShunt-dependent chronic hydrocephalus

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