Aortorenal arterial autografts: long-term assessment

Area of Science:

• Vascular Surgery
• Nephrology
• Hypertension Management

Background:

• Renovascular hypertension (RVH) due to nonatherosclerotic lesions requires surgical intervention.
• Iliac arterial autografts are a reconstructive option for renal artery stenosis.
• Long-term outcomes of autograft use in pediatric and adult RVH patients are important.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of iliac arterial autografts for renal artery reconstruction.
• To assess the impact of autograft repair on renovascular hypertension in a diverse patient population.
• To determine the durability and potential complications of autografts in this specific application.

Main Methods:

• Retrospective analysis of 94 iliac arterial autografts in 86 hypertensive patients over 16 years.
• Inclusion of pediatric patients, solitary kidney patients, and those undergoing ex vivo repair.
• Long-term clinical follow-up (1-16 years) and late arteriography in a significant proportion of patients.

Main Results:

• No early postoperative deaths; one late death from unrelated causes.
• Two early graft occlusions; no late autograft occlusions observed.
• Hypertension cure in 66% and improvement in 32% of patients; one case of anastomotic stenosis and one graft dilation noted.

Conclusions:

• Iliac arterial autografts demonstrate excellent long-term patency and significant success in curing or improving renovascular hypertension.
• Autografts are a safe and effective option for renal artery reconstruction in nonatherosclerotic lesions, even in challenging patient groups.
• The findings support the preferential use of iliac arterial autografts for these specific indications.