Korean J Neurotrauma.  2014 Oct;10(2):101-105. 10.13004/kjnt.2014.10.2.101.

Recurrence of the Chronic Subdural Hematoma after Burr-Hole Drainage with or without Intraoperative Saline Irrigation

• Kim DH
• Kim HS
• Choi HJ
• Han IH
• Cho WH
• Nam KH

• KMID: 2256241
• DOI: http://doi.org/10.13004/kjnt.2014.10.2.101

Abstract

OBJECTIVE
Although standard method has not been established for the chronic subdural hematoma (CSDH), burr-hole trephination and closed system drainage with or without irrigation has been widely accepted as the treatment of choice. The aim of this study is to analysis the post-operative recurrence rates after burr-hole trephination of the CSDH according to the conduction of irrigation.
METHODS
We retrospectively reviewed 184 patients with CSDH who underwent surgical treatment between January 2009 and December 2013. And 152 patients fulfilled the inclusion criteria as follows: 1) CSDH diagnosed on computed tomography (CT), 2) unilateral hematoma, 3) burr-hole trephination with closed system drainage, and 4) follow-up CT for at least 3 months. Those patients were divided into two groups. Group A (n=38) underwent burr-hole trephination without irrigation, and Group B (n=114), burr-hole trephination with saline irrigation.
RESULTS
The overall post-operative recurrence rate was 19.1% (n=29) in this study. The majority of recurrence showed in Group B. Twenty-eight patients (24.6%) of Group B had recurrence and only 1 patient (2.6%) of Group A showed recurrence. The recurrence rate was significantly higher in Group B compared with Group A (p=0.003). Another affecting factor for the recurrence was the amount of postoperative pneumocephalus (p=0.02). No catastrophic complications were found in postoperative course.
CONCLUSION
Although there was no difference of clinical outcome in both groups, the recurrence rate was higher in saline irrigation group compared with no irrigation group. We suggest that saline irrigation procedure be reserved only for selected cases in CSDH burr-hole surgery.

Keyword

Hematoma subdural chronic; Recurrence; Therapeutic irrigation; Drainage; Pneumocephalus

MeSH Terms

Drainage*
Follow-Up Studies
Hematoma
Hematoma, Subdural, Chronic*
Humans
Pneumocephalus
Recurrence*
Retrospective Studies
Therapeutic Irrigation
Trephining

Figure

• 

  FIGURE 1 Volumetric analysis of pneumocephalus was calculat-ed using ImageJ. The pneumoce-phalus of subdural space on axial brain computed tomography was bounded as region of interest which multiplied by the slice thickness. And all slice volumes were added up to estimate the vo-lume of each 3D structure.

• 

  FIGURE 2 Kaplan-Meier plot shows difference between the period of post-operative pneumocephalus in subdural space (black: not irrigation, gray: irrigation).

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