Comparative Outcomes of Infusion Catheter-Directed Thrombolysis and Ultrasound-Enhanced Catheter-Directed Thrombolysis in Acute Limb Ischemia: A 10-Year Single Institution Retrospective Analysis
Zackery Aldaher, Michelle Patel, Sweta Munagapati, Bhargav Doddala, Gautam Agarwal, William Jordan, Omar El Shazly
{"title":"Comparative Outcomes of Infusion Catheter-Directed Thrombolysis and Ultrasound-Enhanced Catheter-Directed Thrombolysis in Acute Limb Ischemia: A 10-Year Single Institution Retrospective Analysis","authors":"Zackery Aldaher, Michelle Patel, Sweta Munagapati, Bhargav Doddala, Gautam Agarwal, William Jordan, Omar El Shazly","doi":"10.1016/j.avsg.2025.12.013","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Standard catheter-directed thrombolysis (CDT) (S-CDT) is widely accepted as a safer alternative to open surgery for acute limb ischemia (ALI), but data on ultrasound-enhanced CDT (UE-CDT) for limb salvage are limited. This study compares outcomes of UE-CDT versus S-CDT.</div></div><div><h3>Methods</h3><div>A 10-year single institution retrospective review identified 68 adult patients who underwent 93 CDT events for ALI, including 62 with UE-CDT and 22 with S-CDT. Following intervention, inpatient, 30 day, and 90 day outcomes were compared; one outcome for comparison was major adverse limb events (MALEs) defined as amputation of any type.</div></div><div><h3>Results</h3><div>No significant differences were observed between UE-CDT and S-CDT in hospital stay (5.6 vs. 7.1 days, <em>P</em> = 0.31), intensive care unit stay (2.5 vs. 2.9 days, <em>P</em> = 0.26), or duration of thrombolysis (24.2 vs. 29.6 hours, <em>P</em> = 0.39). Technical success was achieved in 92% of UE-CDT cases and 95% of S-CDT cases. At 30 days, UE-CDT patients had significantly fewer MALEs compared to S-CDT (6.5% vs. 31.8%; <em>P</em> = 0.01). However, when amputation type was stratified between digit amputation versus above/below knee amputation, there was only a significant difference between digit amputations in the S-CDT compared to UE-CDT at 30 days (<em>P</em> = 0.004). Otherwise, there was no significant difference between the groups at 30 and 90 days when comparing rates of above ankle amputations.</div></div><div><h3>Conclusion</h3><div>UE-CDT and S-CDT for ALI show similar hospital and procedural outcomes. However, UE-CDT is associated with lower 30-day MALE, driven by reduced digit amputations, and becomes nonsignificant when stratifying by above ankle amputations.</div></div>","PeriodicalId":8061,"journal":{"name":"Annals of vascular surgery","volume":"125 ","pages":"Pages 33-39"},"PeriodicalIF":1.6000,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of vascular surgery","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0890509625008982","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/12/20 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"PERIPHERAL VASCULAR DISEASE","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Standard catheter-directed thrombolysis (CDT) (S-CDT) is widely accepted as a safer alternative to open surgery for acute limb ischemia (ALI), but data on ultrasound-enhanced CDT (UE-CDT) for limb salvage are limited. This study compares outcomes of UE-CDT versus S-CDT.
Methods
A 10-year single institution retrospective review identified 68 adult patients who underwent 93 CDT events for ALI, including 62 with UE-CDT and 22 with S-CDT. Following intervention, inpatient, 30 day, and 90 day outcomes were compared; one outcome for comparison was major adverse limb events (MALEs) defined as amputation of any type.
Results
No significant differences were observed between UE-CDT and S-CDT in hospital stay (5.6 vs. 7.1 days, P = 0.31), intensive care unit stay (2.5 vs. 2.9 days, P = 0.26), or duration of thrombolysis (24.2 vs. 29.6 hours, P = 0.39). Technical success was achieved in 92% of UE-CDT cases and 95% of S-CDT cases. At 30 days, UE-CDT patients had significantly fewer MALEs compared to S-CDT (6.5% vs. 31.8%; P = 0.01). However, when amputation type was stratified between digit amputation versus above/below knee amputation, there was only a significant difference between digit amputations in the S-CDT compared to UE-CDT at 30 days (P = 0.004). Otherwise, there was no significant difference between the groups at 30 and 90 days when comparing rates of above ankle amputations.
Conclusion
UE-CDT and S-CDT for ALI show similar hospital and procedural outcomes. However, UE-CDT is associated with lower 30-day MALE, driven by reduced digit amputations, and becomes nonsignificant when stratifying by above ankle amputations.
期刊介绍:
Annals of Vascular Surgery, published eight times a year, invites original manuscripts reporting clinical and experimental work in vascular surgery for peer review. Articles may be submitted for the following sections of the journal:
Clinical Research (reports of clinical series, new drug or medical device trials)
Basic Science Research (new investigations, experimental work)
Case Reports (reports on a limited series of patients)
General Reviews (scholarly review of the existing literature on a relevant topic)
Developments in Endovascular and Endoscopic Surgery
Selected Techniques (technical maneuvers)
Historical Notes (interesting vignettes from the early days of vascular surgery)
Editorials/Correspondence