Rendezvous technique for recanalization of long-segmental chronic total occlusion above the knee following unsuccessful standard angioplasty.

Abstract

PURPOSE:

To assess the technical feasibility and efficacy of the rendezvous technique, a type of subintimal retrograde wiring, for the treatment of long-segmental chronic total occlusions above the knee following unsuccessful standard angioplasty.

METHODS:

The rendezvous technique was attempted in eight limbs of eight patients with chronic total occlusions above the knee after standard angioplasty failed. The clinical symptoms and ankle-brachial index were compared before and after the procedure. At follow-up, pain relief, wound healing, limb salvage, and the presence of restenosis of the target vessels were evaluated.

RESULTS:

The rendezvous technique was performed successfully in seven patients (87.5%) and failed in one patient (12.5%). Foot pain improved in all seven patients who underwent successful treatment, with ankle-brachial indexes improving from 0.23 ± 0.13 before to 0.71 ± 0.09 after the procedure (P < 0.001). At the end of the follow-up period, the visual analogue scale improved from 6.86 ± 1.57 to 1.57 ± 1.27 (P < 0.001). Non-healing ulcers in three patients either healed (n = 2) or improved (n = 1). No major amputation was necessary. Kaplan-Meier analyses revealed that stenosis-free rate was 83.3% at six months and 41.7% at 12 months.

CONCLUSION:

The rendezvous technique is a feasible and effective treatment for chronic total occlusions above the knee when standard angioplasty fails.

• Authors: Jun Cao, Hai-Tao Lu, Li-Ming Wei, Jun-Gong Zhao, Yue-Qi Zhu
• Journal: Vascular (Vascular) Vol. 24 Issue 2 Pg. 157-65 (Apr 2016) ISSN: 1708-539X [Electronic] England
• PMID: 26002783 (Publication Type: Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © The Author(s) 2015.

Topics

• Aged
• Angioplasty (adverse effects)
• Angioplasty, Balloon (adverse effects, methods)
• Ankle Brachial Index
• Chronic Disease
• Constriction, Pathologic
• Disease-Free Survival
• Feasibility Studies
• Female
• Femoral Artery (diagnostic imaging, physiopathology)
• Humans
• Kaplan-Meier Estimate
• Limb Salvage
• Lower Extremity (blood supply)
• Male
• Middle Aged
• Peripheral Arterial Disease (diagnostic imaging, physiopathology, therapy)
• Popliteal Artery (diagnostic imaging, physiopathology)
• Recurrence
• Retrospective Studies
• Time Factors
• Treatment Failure
• Vascular Patency
• Wound Healing