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. 2014 Oct;10(2):41-8.
doi: 10.13004/kjnt.2014.10.2.41. Epub 2014 Oct 31.

The Predicting Factors for Recurrence of Chronic Subdural Hematoma Treated with Burr Hole and Drainage

Dae Hyo Song  1 , Young Soo Kim  1 , Hyoung Joon Chun  1 , Hyeong Joong Yi  1 , Koang Hum Bak  1 , Yong Ko  1 , Suck Jun Oh  1
Affiliations

The Predicting Factors for Recurrence of Chronic Subdural Hematoma Treated with Burr Hole and Drainage

Dae Hyo Song et al. Korean J Neurotrauma. 2014 Oct.

Abstract

Objective: Chronic subdural hematoma (CSDH) is common in elderly patients. So, with an increasing number of elderly people in the general population, there is a need to investigate risk factors which increase recurrence rate. In this study, factors affecting the postoperative recurrence are investigated based on the reoperative CSDH cases.

Methods: Total of ninety-seven patients was enrolled in this study who had have operation for CSDH. In all patients, one burr hole trephination and drainage was the method of choice for the initial treatment of CSDH. We retrospectively evaluated several factors which affect to recurrence of CSDH.

Results: Retrospective analysis was performed in 97 patients. Sixteen patients experienced reoperation within 3 months (16/97, 16.5%) for recurrence of CSDH. And, when hematoma was divided by internal architecture, heterogeneous density group seems to be have close relationship with recurrence more significantly than homogeneous density group (p=0.002). Hypertension, diabetes mellitus, early removal of drainage tube, bilaterality of hematoma also have significant relationship with recurrence.

Conclusion: Recurrence rate of CSDH treated with one burr hole drainage is related with some various factors. There was statistically significant difference between recurred group and non-recurred group. Not only demographic factors but also internal architecture on preoperative brain computed tomography is a significant predicting factor of recurrence in CSDH patients who underwent a surgery. In this study, heterogeneous type hematoma have significantly related with recurrence of CSDH. We should give attention to these predicting factors for more effective care.

Keywords: Hematoma, subdural, chronic; Recurrence; Risk factors.

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Conflict of interest statement

The authors have no financial conflicts of interest.

Figures

FIGURE 1
FIGURE 1
Classification of internal architecture on preoperative brain computed tomography. Homogeneous group-(A) hyperdensity type, (B) isodensity type, and (C) hypodensity type. Heterogeneous group-(D) separated type, (E) gradient type, and (F) mixed type.
See this image and copyright information in PMC

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