Occurrence and impact of delayed cerebral ischemia after coiling and after clipping in the International Subarachnoid Aneurysm Trial (ISAT).

J Neurol · 2012 · PMC3319891 · PMID 21947244

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showed a trendno p-value reported

One meta-analysis, including nine studies, showed a trend towards less symptomatic vasospasm after coiling than after clipping [ 15 ].

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.