Frontiers in neurology · 2026
Standardized single-burr-hole aspiration-irrigation with drainage is associated with lower early recurrence in chronic subdural hematoma.
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Pan Zhenjiang, Xu Xuxu, Wei Shepeng
Аннотация
BACKGROUND: Recurrence after burr-hole evacuation for chronic subdural hematoma (cSDH) remains clinically relevant, and modifiable operative details may influence early failure. We evaluated a standardized single-burr-hole aspiration-irrigation with drainage (SBAID) workflow incorporating high-point burr-hole positioning (Wei's point), active aspiration-irrigation, air elimination, and frontal-directed drainage, hypothesizing that improved early cavity-air dynamics would translate into fewer early reoperations.
METHODS: In this single-center retrospective cohort study, we included consecutive adults with symptomatic, imaging-confirmed cSDH treated with single-burr-hole evacuation and closed drainage between November 2016 and December 2024. Patients underwent SBAID or conventional single-burr-hole irrigation and drainage (SBID). The primary outcome was recurrence requiring reoperation within 60 days. Secondary outcomes included operative duration, length of stay, postoperative complications, and quantitative imaging markers of early postoperative cavity-air burden (48-h residual subdural space and pneumocephalus volumes, and ~30-day residual cavity volume). Multivariable logistic regression and propensity score-based sensitivity analyses were performed.
RESULTS: Among 186 patients (SBAID, n = 151; SBID, n = 35), 60-day reoperation-defined recurrence occurred in 2.6% vs. 14.3%, respectively (OR 0.16, 95% CI 0.04-0.64; P = 0.013). SBAID was associated with shorter operative time and shorter time to discharge (both P < 0.001), smaller 48-h residual subdural space and pneumocephalus volumes, and smaller ~30-day residual cavity volume (all P < 0.001). Postoperative seizures were less frequent with SBAID, whereas in-hospital mortality did not differ.
CONCLUSIONS: In this single-center retrospective cohort, SBAID was associated with lower early reoperation-defined recurrence and reduced postoperative cavity-air burden vs. conventional SBID.
METHODS: In this single-center retrospective cohort study, we included consecutive adults with symptomatic, imaging-confirmed cSDH treated with single-burr-hole evacuation and closed drainage between November 2016 and December 2024. Patients underwent SBAID or conventional single-burr-hole irrigation and drainage (SBID). The primary outcome was recurrence requiring reoperation within 60 days. Secondary outcomes included operative duration, length of stay, postoperative complications, and quantitative imaging markers of early postoperative cavity-air burden (48-h residual subdural space and pneumocephalus volumes, and ~30-day residual cavity volume). Multivariable logistic regression and propensity score-based sensitivity analyses were performed.
RESULTS: Among 186 patients (SBAID, n = 151; SBID, n = 35), 60-day reoperation-defined recurrence occurred in 2.6% vs. 14.3%, respectively (OR 0.16, 95% CI 0.04-0.64; P = 0.013). SBAID was associated with shorter operative time and shorter time to discharge (both P < 0.001), smaller 48-h residual subdural space and pneumocephalus volumes, and smaller ~30-day residual cavity volume (all P < 0.001). Postoperative seizures were less frequent with SBAID, whereas in-hospital mortality did not differ.
CONCLUSIONS: In this single-center retrospective cohort, SBAID was associated with lower early reoperation-defined recurrence and reduced postoperative cavity-air burden vs. conventional SBID.