Commentary on Assessment of Burr-Hole Craniostomy for Chronic Subdural Hematoma: A Randomized Unblinded Comparative Trial of Burr-HoleCraniostomies and Drainage with or without Irrigation for Newly Progressed Chronic Subdural Hematoma

Chronic subdural hematoma (CSDH) is one of the most common clinical entities in neurosurgical practice. Although the therapeutic management is well established with burr-hole craniostomy and drainage, patients with CSDH still suffer from recurrence up to 33% [1-3]. Recently reported randomized controlled studies revealed that drainage is the most effective treatment in controlling recurrence [4,5]. As far as we know, there is no reported trials revealing whether simple drainage without irrigation (simple drainage) or with irrigation (irrigation drainage) could treat CSDH with less recurrence rate compared to the other. The purpose of this study is toanalyze thepostoperative recurrence rate and complications between drainage with and without irrigation. The present trial is permitted by Institutional Review Board of Kyoto Okamoto Memorial Hospital (No. 2020-18).