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Clinical analysis of risk factors related to recurrent chronic subdural hematoma

Byung-Soo Ko1, Jung-Kil Lee, Bo-Ra Seo

  • 1Department of Neurosurgery, Chonnam National University Hospital & Medical School, Gwangju, Korea.

Journal of Korean Neurosurgical Society
|December 20, 2008
PubMed

Insights

High- and mixed-density chronic subdural hematomas (CSDH) on CT scans and bleeding tendencies are risk factors for recurrence after burr hole drainage. Delayed surgery may be considered for these patients.

Area of Science:

  • Neurosurgery
  • Radiology

Background:

  • Burr hole drainage is a common treatment for chronic subdural hematoma (CSH).
  • Recurrence rates after surgery vary significantly (3.7-30%).

Purpose of the Study:

  • To identify risk factors for CSDH recurrence after one burr hole drainage.

Main Methods:

  • Retrospective analysis of 255 patients who underwent one burr hole drainage for CSDH.
  • Evaluation of demographic, clinical, and radiologic factors.

Main Results:

  • High- and mixed-density CSDH on CT scans were associated with significantly higher recurrence rates (p<0.001).
  • Bleeding tendencies (e.g., leukemia, liver disease, chronic renal failure) were also significantly linked to recurrence (p=0.037).

Conclusions:

  • High- and mixed-density CSDH on CT scans predict higher recurrence risk.
  • Consider delaying surgery for these patients unless severe symptoms are present.
  • Reoperation at the previous burr hole site is a preferred treatment for recurrent CSDH.
Abstract

Keywords:
Chronic subdural hematoma (CSDH)Computed tomographyRecurrence

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