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Aorto-femoral bypass with polytetrafluoroethylene prostheses: preliminary results in 363 cases

Pontajes aorto-femorales en polytetrafluoroethileno: resultados preliminares de 363 pontajes

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Annals of Vascular Surgery

Abstract

From October 1977 to October 1982, 363 unllateral aorto-fermoral bypasses using polytetrafluoroethylene (PTFE) prostheses were performed for predominantly unllateral aorto-llac disease. The distal anastomosis was extended into the deep femoral artery in 57% of the patients. The postoperative mortallty was 0.5%. The actuarial patency rate after 6 years was 87% in patients with claudication and 77% in those with critical ischemia. No false aneurysm developed. Thrombosis of the prosthesis was due to progression of distal disease, intimal hyperplasia and postural extrinsic compression. The latter seems to be characteristic of PTFE prostheses and can be treated by thrombectomy. In 21 cases a cross-over femoro-femoral bypass was done during the follow-up period because of contralateral progression of disease.

Resumen

De Octubre de 1979 a Octubre de 1982, han sido realizados 363 pontajes aorto-femorales unilaterales en polytetrafluoroethileno (PTFE). Estos pacientes han presentado lesiones aorto-ilíacas de predominio unilateral. La anastomosis distal ha sido realizada sobre la arteria femoral profunda en el 57% de los pacientes. La mortalidad post-operatoria es de 0,5%. La permeabilidad a 6 años es de 87%, en los pacientes operados por claudicacío intermitente y de 77% para los pacientes operados por isquémia aguda. Ningún aneurisma anastomótico ha sido observado. Las occlusiones tardías de estos pontajes son debidas a 3 causas: la deterioración del lecho vascular distal, la hiperplasia intimal yuxta anastómotica y un mecanismo postural que parece muy específico en los pontajes en PTFE, que puede ser tratado por simple trombectomía. En el curso del seguimiento, 21 pacientes han recibido un pontaje femoro-femoral complementario, en razón de la evolutividad de las lesiones contralaterales.

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Cormier, JM., Laurian, C., Noel, Y. et al. Aorto-femoral bypass with polytetrafluoroethylene prostheses: preliminary results in 363 cases. Annals of Vascular Surgery 1, 43–49 (1986). https://doi.org/10.1007/BF02732454

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