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Effect of hospital volume on in-hospital mortality for renal artery bypass

机译：医院数量对肾动脉搭桥术住院死亡率的影响

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Background: A recent report determined that the nationwide mortality for renal artery bypass (RAB) is surprisingly high-10%. We hypothesized that operative mortality for RAB is related to the volume of such operations performed in each center. Methods: The Nationwide Inpatient Sample was analyzed to identify patients undergoing RAB for the years 2000-2005. In-hospital mortality for RAB was compared between hospitals. Results: During the study period, RAB was performed on 7413 patients with an overall in-hospital mortality of 9.6%. The multivariate logistic regression analyses revealed that after adjusting for surgical risk, increasing hospital volume was significantly associated with decreased in-hospital mortality for RAB (odds ratio 0.98; 95% confidence interval, 0.96-0.99; P =.015). Conclusions: Patient risk profile and hospital volume are critical determinants of in-hospital mortality for RAB, which should be factored into decision making for patients requiring intervention for renovascular disease.
机译：背景：最近的一份报告确定，全国肾动脉搭桥术（RAB）的死亡率令人惊讶地高达10％。我们假设RAB的手术死亡率与每个中心进行的此类手术的数量有关。方法：对全国住院患者样本进行分析，以鉴定2000-2005年接受RAB的患者。在医院之间比较了RAB的住院死亡率。结果：在研究期间，对7413例患者进行了RAB，住院总死亡率为9.6％。多元logistic回归分析显示，在调整手术风险后，增加医院数量与RAB的院内死亡率降低显着相关（优势比为0.98; 95％置信区间为0.96-0.99; P = .015）。结论：患者风险状况和医院数量是RAB住院死亡率的关键决定因素，应将其作为需要进行肾血管疾病干预的患者的决策依据。

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