Small Number of Coils With Extended Length in the Endovascular Treatment of Cerebral Aneurysm: Experience of 108 Cases in a Single-Center

Abstract

Background: Knowledge about the number and packing density of coils for aneurysm treatment affects the efficiency of health services and hospital financing. This study aimed to report case series with a small number of coils with longer lengths and impact on packing density. Methods:We retrospectively analyzed the morphology of aneurysms (location and size) and the data of characteristic features of coils (numbers, diameter size, length, and packing density) from the cerebral aneurysm registry at a single center from January 2019 to June 2022. Kruskal-Wallis analysis was performed to identify the association between coil characteristics based on the size of the aneurysm. Results:Of the 108 patients included in the study, 116 aneurysms were identified and coiled; 66 were small (< 5 mm), 42 were moderate (5 -10 mm), and eight were large (> 10 mm). Most cases utilized framing first coil (in 64.65%) and helical coils (in 31.89%). The total length of framing coils (