English abstract
Clip slippage is a rare occurrence, and the scissoring or torsional failure of aneurysm clips is rarer
still. Titanium clips have been implicated in a few such reported cases. The authors report its occurrence while
using a fenestrated cobalt alloy clip for an internal carotid artery aneurysm which was identified by intraoperative
angiography and rectified by re-applying a non-fenestrated cobalt alloy clip. The possible mechanism of this
complication, and measures that may prevent its occurrence, including meticulous dissection, decompression when
possible, proper clip selection, and intraoperative angiogram are described.