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Year : 2021  |  Volume : 16  |  Issue : 2  |  Page : 237-242

Optimal use of temporary clip application during aneurysm surgery – In search of the holy grail

1 Department of Neurosurgery, DKS Postgraduate Institute and Research Center, Raipur, Chhattisgarh, India
2 Department of Neurosurgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India

Correspondence Address:
Dr. Sanjeev Kumar
Department of Neurosurgery, DKS Postgraduate Institute and Research Centre, Raipur - 492 001, Chhattisgarh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_465_20

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Temporary clips are invaluable safety tools during the clipping of an aneurysm. Controversies regarding maximum permissible duration and safety, however, remain unanswered. This descriptive narrative attempts to review the literature to provide valuable insights on controversies clouding the use of temporary clips among neurosurgeons. Popular databases, including Pub Med, Medline/Medscape, Scopus, Cochrane, Embase, Google Scholar, were searched to find available literature on temporary clips. The searched MeSH terms were “Temporary Clip,” “Temporary Clipping,” “Cerebral Aneurysm,” and “Aneurysm.” Temporary clips have been in use since 1928 and have undergone considerable structural and technical modifications. A temporary clip's optimal safety limit is not yet defined with literature evidence ranging from immediate to 93 min. It is not yet definite whether temporary clips application aggravates vasospasm, but emergency temporary clips application, especially in poor-grade aneurysmal subarachnoid hemorrhage patients, is associated with poor outcomes. A temporary clip needs to be applied with caution in patients treated earlier by endovascular technique and having indwelling stents. Nitinol Stent is feasible, while a Cobalt-Chromium alloy stent does not get occluded and gets deformed under the closing pressure of a temporary clip. Although a temporary clip application is a fundamental strategy during the clipping of an aneurysm; the exact safe duration remains to be decided in randomized control trials. Their utility for the shorter duration is beneficial under un-conclusive evidence of neuroprotective agents and intraoperative monitoring. Neurosurgeons need to consider all aspects of their pros and cons for optimal use.

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