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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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NEW DEVELOPMENTS IN THE MANAGEMENT OF POPLITEAL ANEURYSMS
The Journal of Cardiovascular Surgery 2007 Giugno;48(3):275-9
Endovascular treatment of popliteal artery aneurysms: is the technique a valid alternative to open surgery?
Tielliu I. F. J. 1, Verhoeven E. L. G. 1, Zeebregts C. J. 1, Prins T. R. 2, Bos W. T. G. J. 1, Van den Dungen J. J. A. M. 1
1 Department of Surgery University Medical Center Groningen Groningen, The Netherlands
2 Department of Radiology University Medical Center Groningen Groningen, The Netherlands
Aim. Feasibility of endovascular repair of popliteal artery aneurysms has been established. The results of this technique and the effect of the learning curve on the occurrence of complications were evaluated in a prospective cohort.
Methods. Between June 1998 and February 2007, 73 popliteal aneurysms were treated by endovascular means. Primary outcome was stent-graft patency. Secondary outcome was a combined end-point of stent-graft related complications, including occlusion, migration, stent-graft fracture, and stenosis. To study the learning curve, the cohort of patients was divided into 2 groups (group A from 1 to 23; group B from 24 to 73). Cut-off point chosen was the introduction of the more aggressive postoperative anticoagulation protocol with clopidogrel.
Results. Eighteen (25%) stent-grafts occluded. This resulted in a reintervention in 11 patients. Migration, fracture, and stenosis were diagnosed in 9, 3 (2 leading to occlusion), and 2 limbs, respectively; these 14 complications accounted for reinterventions in 8 additional patients. In total, 19 of the 73 limbs (26%) required 20 reinterventions. Overall 3-and 5-year patency rates were 77% and 70% for primary patency, and 86% and 76% for secondary patency, respectively. There were more occlusions in group A (8/23, 35%) versus group B (10/50, 20%) (P= 0.22). With regard to the combined endpoint, there were more events in group A (14/23, 61%) than in group B (16/50, 32%) (P= 0.016).
Conclusion. Results of endovascular repair of popliteal artery aneurysms are improving and in range with those of open repair.