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Year : 2020  |  Volume : 68  |  Issue : 2  |  Page : 419--426

Adenosine-Induced Transient Asystole During Surgical Treatment of Basilar Artery Aneurysms

Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Bangalore, Karnataka, India

Correspondence Address:
Vivek Raj
Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore - 560 066, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0028-3886.284353

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Aim: To evaluate the safety and efficacy of adenosine-induced transient asystole (AITA) during surgery for basilar artery aneurysms. Materials and Methods: All the patients with basilar artery aneurysms operated using AITA at our institute during two years period (August 2013–July 2015) were included in this study. Results: Adenosine was used in 11 patients with 13 basilar artery aneurysms. Seven of these aneurysms were basilar bifurcation aneurysms, four were basilar–superior cerebellar artery junction aneurysms, and two were distal basilar trunk aneurysms. The indications for AITA were narrow corridor for placement of temporary clip in 11 aneurysms, intraop rupture in 1 aneurysm, and circumferential dissection of a large aneurysm in 1. The mean dose of adenosine used for inducing asystole was 19.4 mg (range: 15–30 mg) and the mean total dose of adenosine used was 40.6 mg (range: 18–90 mg). A mean of 2 (range: 1–5) AITAs were required during surgical treatment of these aneurysms. The mean duration of a systole was 27 s (range: 9–76 s). There were no complications related to AITA in these patients except for transient rebound hypertension in one patient. Check angiogram revealed complete obliteration of 11 aneurysms and small residual neck in 2 aneurysms. Modified Rankin Scale at three months of follow-up was 0 in seven patients, 1 in two patients, 4 in one patient, and 6 in one patient. Conclusion: AITA during surgical management of basilar artery aneurysms is a safe and effective technique and has an important role during surgery for these aneurysms.


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