Negative / Null Result ReportMedicine

Is the Eversion Technique Associated with Lower Peri-operative Stroke or Death Compared with Carotid Endarterectomy with Patch Angioplasty? Secondary Data Analysis of the German Statutory Quality Assurance Database.

Knappich C; Bohmann B; Kirchhoff F; Lohe V; Naher S; Kallmayer M; Kühnl A · 2025 · European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery

WASTE classifies this as Negative / Null Result Report · AI classification, approximate

The study found no significant effect — useful as a negative control or null benchmark for your own design.

The finding, in one line

“Objective Various studies have failed to detect a difference in outcomes between carotid endarterectomy (CEA) with patch angioplasty and eversion CEA.”

Abstract (excerpt)

Objective Various studies have failed to detect a difference in outcomes between carotid endarterectomy (CEA) with patch angioplasty and eversion CEA. This study aimed to assess whether surgical technique and related department policy are…

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