慢性硬膜下血腫に対し、脳を覆う動脈を遮断することで再手術が3倍減少(For chronic subdural hematomas, blocking the artery supplying the brain covering reduced re-operations threefold)

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2024-11-20 バッファロー大学(UB)

ニューヨーク州立大学バッファロー校とワイル・コーネル・メディスンの神経外科医が主導した全国的な臨床試験「EMBOLISE」により、慢性硬膜下血腫の再手術率を3分の1に減少させる新たな治療法が明らかになりました。この治療法は、脳を覆う硬膜に血液を供給する動脈を塞ぐことで、再発を効果的に防ぎます。試験には39の病院から400人の患者が参加し、平均年齢は72歳でした。この成果は、高齢者に多い慢性硬膜下血腫の治療法に革新をもたらす可能性があります。

<関連情報>

硬膜下血腫に対する補助的中髄膜動脈塞栓術 Adjunctive Middle Meningeal Artery Embolization for Subdural Hematoma

Jason M. Davies, M.D., Ph.D., Jared Knopman, M.D., Maxim Mokin, M.D., Ph.D., Ameer E. Hassan, D.O., Robert E. Harbaugh, M.D., Alexander Khalessi, M.D., Jens Fiehler, Ph.D., +37, for the EMBOLISE Investigators
New England Journal of Medicine  Published: November 20, 2024
DOI:10.1056/NEJMoa2313472

慢性硬膜下血腫に対し、脳を覆う動脈を遮断することで再手術が3倍減少(For chronic subdural hematomas, blocking the artery supplying the brain covering reduced re-operations threefold)

Abstract

Background
Subacute and chronic subdural hematomas are common and frequently recur after surgical evacuation. The effect of adjunctive middle meningeal artery embolization on the risk of reoperation remains unclear.

Methods
In a prospective, multicenter, interventional, adaptive-design trial, we randomly assigned patients with symptomatic subacute or chronic subdural hematoma with an indication for surgical evacuation to undergo middle meningeal artery embolization plus surgery (treatment group) or surgery alone (control group). The primary end point was hematoma recurrence or progression that led to repeat surgery within 90 days after the index treatment. The clinical secondary end point was deterioration of neurologic function at 90 days, which was assessed with the modified Rankin scale in a noninferiority analysis (margin for risk difference, 15 percentage points).

Results
A total of 197 patients were randomly assigned to the treatment group and 203 to the control group. Surgery occurred before randomization in 136 of 400 patients (34.0%). Hematoma recurrence or progression leading to repeat surgery occurred in 8 patients (4.1%) in the treatment group, as compared with 23 patients (11.3%) in the control group (relative risk, 0.36; 95% confidence interval [CI], 0.11 to 0.80; P=0.008). Functional deterioration occurred in 11.9% of the patients in the treatment group and in 9.8% of those in the control group (risk difference, 2.1 percentage points; 95% CI, -4.8 to 8.9). Mortality at 90 days was 5.1% in the treatment group and 3.0% in the control group. By 30 days, serious adverse events related to the embolization procedure had occurred in 4 patients (2.0%) in the treatment group, including disabling stroke in 2 patients; no additional events had occurred by 180 days.

Conclusions
Among patients with symptomatic subacute or chronic subdural hematoma with an indication for surgical evacuation, middle meningeal artery embolization plus surgery was associated with a lower risk of hematoma recurrence or progression leading to reoperation than surgery alone. Further study is needed to evaluate the safety of middle meningeal artery embolization in the management of subdural hematoma. (Funded by Medtronic; EMBOLISE ClinicalTrials.gov number, NCT04402632.)

医療・健康
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