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Autotransplantation or In Situ Surgical Treatment of Complex Renal Artery Aneurysm: Surgical Technique and Outcomes.
European urology open science. 2024 May
BACKGROUND AND OBJECTIVE: Renal artery aneurysm (RAA) is a rare condition. Our study investigates the effectiveness and outcomes of surgical treatments for complex RAA, comparing the in situ (IS) and ex vivo autotransplantation (AT) methods.
METHODS: We conducted a retrospective study from June 2015 to March 2023, including all consecutive patients treated surgically for complex RAA in our center. We focused on patients with complex RAA locations requiring open surgical multidisciplinary treatment, excluding those with simple aneurysms or who were treated endovascularly. Preoperative data including demographics, comorbidities, and cardiovascular risk factors were collected. The measured primary outcome was the absence of residual aneurysm and main renal arterial thrombosis after surgery. The secondary outcomes included pre- and postoperative kidney perfusion analyses and surgical complications as per Clavien-Dindo classification. Differences between AT and IS were assessed by Wilcoxon, chi-square, or Fischer's exact test.
KEY FINDINGS AND LIMITATIONS: Twenty-seven aneurysms were treated in 25 patients. No residual aneurysm or main artery thrombosis was found after surgery. Ten (40%) patients underwent AT surgery. The median kidney perfusion differences were 2 cc (-12; 13), 0 cc (-13; 10), and 2 cc (-10; 13; p = 0.41) in the whole, AT, and IS cohorts, respectively. Clavien-Dindo grade 1 and 2 complications occurred in 11% and 30% of patients, respectively, with no grade 3 or 4 complications observed.
CONCLUSIONS AND CLINICAL IMPLICATIONS: Complex RAA can be managed effectively through open surgery, ensuring good ipsilateral renal preservation and tolerable toxicity. Both AT and IS surgeries yielded similar outcomes. Further multicenter studies are warranted to confirm our findings.
PATIENT SUMMARY: This study explored the treatment of a rare kidney blood vessel condition called renal artery aneurysm using two surgical approaches. Our findings suggest that both surgical techniques are effective in treating this condition without major complications, ensuring good kidney preservation. These promising results need further confirmation through larger studies across different medical centers.
METHODS: We conducted a retrospective study from June 2015 to March 2023, including all consecutive patients treated surgically for complex RAA in our center. We focused on patients with complex RAA locations requiring open surgical multidisciplinary treatment, excluding those with simple aneurysms or who were treated endovascularly. Preoperative data including demographics, comorbidities, and cardiovascular risk factors were collected. The measured primary outcome was the absence of residual aneurysm and main renal arterial thrombosis after surgery. The secondary outcomes included pre- and postoperative kidney perfusion analyses and surgical complications as per Clavien-Dindo classification. Differences between AT and IS were assessed by Wilcoxon, chi-square, or Fischer's exact test.
KEY FINDINGS AND LIMITATIONS: Twenty-seven aneurysms were treated in 25 patients. No residual aneurysm or main artery thrombosis was found after surgery. Ten (40%) patients underwent AT surgery. The median kidney perfusion differences were 2 cc (-12; 13), 0 cc (-13; 10), and 2 cc (-10; 13; p = 0.41) in the whole, AT, and IS cohorts, respectively. Clavien-Dindo grade 1 and 2 complications occurred in 11% and 30% of patients, respectively, with no grade 3 or 4 complications observed.
CONCLUSIONS AND CLINICAL IMPLICATIONS: Complex RAA can be managed effectively through open surgery, ensuring good ipsilateral renal preservation and tolerable toxicity. Both AT and IS surgeries yielded similar outcomes. Further multicenter studies are warranted to confirm our findings.
PATIENT SUMMARY: This study explored the treatment of a rare kidney blood vessel condition called renal artery aneurysm using two surgical approaches. Our findings suggest that both surgical techniques are effective in treating this condition without major complications, ensuring good kidney preservation. These promising results need further confirmation through larger studies across different medical centers.
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