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Related Experiment Videos

Renal artery dissection.

B M Smith, G W Holcomb, R E Richie

    Annals of Surgery
    |August 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Renal artery dissections, often linked to hypertension, can be successfully treated with arterial reconstruction. This aggressive approach preserves kidney function and controls blood pressure, avoiding nephrectomy.

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    Area of Science:

    • Vascular Surgery
    • Nephrology
    • Cardiovascular Disease

    Background:

    • Renal artery dissections cause stenosis or occlusion, frequently in hypertensive patients with atherosclerosis or fibromuscular disease.
    • These dissections can be acute (spontaneous, post-angiography, or agonal) or chronic, leading to renovascular hypertension or asymptomatic states.

    Observation:

    • A review of nine patients treated at Vanderbilt University Medical Center identified fourteen renal artery dissections.
    • Eleven dissections occurred in seven patients with renovascular hypertension; seven chronic and four acute.
    • Three agonal dissections were found postmortem in two patients.

    Findings:

    • Ten bypass procedures, including complex ex vivo branch reconstructions, achieved 100% immediate patency and preserved/improved renal function.

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  • Long-term follow-up demonstrated sustained patency, excellent blood pressure control, and normal renal function without nephrectomy or deaths.
  • Analysis of 72 patients from prior series showed lower survival (76.4%) and kidney preservation (47.3%), with renal failure in 59% of deaths.

    • Implications:

    • The high success rate of revascularization for renal artery dissections highlights the need for aggressive diagnosis and treatment.
    • Arterial reconstruction is crucial for preserving renal function and managing renovascular hypertension.
    • Preserving functioning renal tissue through timely intervention is paramount.