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Effect of Cumulative Case Volume on Procedural and Clinical Outcomes in Endovascular Thrombectomy

Authors
 Byung Moon Kim  ;  Jang-Hyun Baek  ;  Ji Hoe Heo  ;  Dong Joon Kim  ;  Hyo Suk Nam  ;  Young Dae Kim 
Citation
 STROKE, Vol.50(5) : 1178-1183, 2019 
Journal Title
 STROKE 
ISSN
 0039-2499 
Issue Date
2019
Keywords
acute stroke ; case volume ; outcome and process assessment ; quality of care ; thrombectomy
Abstract
Background and Purpose- The effect of endovascular thrombectomy (EVT) cumulative case volume (EVT-CCV) on outcomes of acute stroke patients has not been studied. This study investigated whether EVT-CCV was associated with outcomes. Methods- We identified all patients who underwent EVT for anterior circulation large vessel occlusion. Patients who met enrollment criteria were grouped into 5 based on the number of previous cases at each hospital. The number of cases that were recruited from each hospital and then assigned to each group (n) was designed to increase by the function of 10×2(n-1); group 1 consisted of cases 1 to 10 at each hospital, group 2 was cases 11 to 30, group 3 was cases 31 to 70, group 4 was cases 71 to 150, and group 5 was cases ≥151. We tested whether EVT-CCV group was associated with procedural and clinical outcomes. Results- Nine hundred fifty-five patients fulfilled the enrollment criteria. Recanalization and good outcome positively correlated with EVT-CCV group ( P<0.001 [correlation coefficient, r=0.122] for recanalization; P=0.002 [ r=0.099] for good outcome), whereas symptomatic intracranial hemorrhage and mortality negatively correlated ( P=0.039 [ r=-0.067] for symptomatic intracranial hemorrhage; P=0.016 [ r=-0.078] for mortality). EVT-CCV group was independently associated with recanalization (odds ratio, 1.182; 95% CI, 1.029-1.358) and good outcome (odds ratio, 1.187; 95% CI, 1.053-1.337). Conclusions- With increased EVT-CCV, recanalization and good outcome increased, whereas symptomatic intracranial hemorrhage and mortality decreased. Increased EVT-CCV was independently associated with recanalization and good outcome.
Full Text
https://www.ahajournals.org/doi/full/10.1161/STROKEAHA.119.024986
DOI
10.1161/STROKEAHA.119.024986
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Joon(김동준) ORCID logo https://orcid.org/0000-0002-7035-087X
Kim, Byung Moon(김병문) ORCID logo https://orcid.org/0000-0001-8593-6841
Kim, Young Dae(김영대) ORCID logo https://orcid.org/0000-0001-5750-2616
Nam, Hyo Suk(남효석) ORCID logo https://orcid.org/0000-0002-4415-3995
Heo, Ji Hoe(허지회) ORCID logo https://orcid.org/0000-0001-9898-3321
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/169852
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