Al-Sarraf Nael, Raza Adnan, Rowley Suzanne, Hughes Anne, Tolan Michael, Young Vincent, McGovern Eillish
Department of Cardiothoracic Surgery, Chest Disease Hospital, Kuwait City, Kuwait.
Gen Thorac Cardiovasc Surg. 2009 Feb;57(2):87-93. doi: 10.1007/s11748-008-0336-6. Epub 2009 Feb 12.
We sought to assess the effect of low body mass index (BMI) on short- and long-term outcomes following cardiac surgery.
This is a retrospective review of a prospectively collected departmental database over a 6-year period. Patients were eligible for the study if the BMI was <25 kg/m(2). All morbidities, length of hospital stay, and short- and long-term mortality were reviewed.
There were 704 patients divided into low (n = 71) and normal (n = 633) BMI. Postoperative pulmonary complications were higher in the low BMI group compared to the normal BMI group (24% vs. 11%, P < 0.001) with a higher incidence of in-hospital mortality (10% vs. 5%). Using multiple logistic regression, low BMI was an independent risk factor for in-hospital mortality. The 1-, 3-, and 5-year survivals for the low group were 90%, 78%, and 70% compared to 94%, 86%, and 81% in the normal BMI group.
Low BMI is associated with increased morbidity and mortality following cardiac surgery. Risk scoring systems should utilize the BMI in the preoperative risk assessment with special attention to low BMI.
我们试图评估低体重指数（BMI）对心脏手术后短期和长期预后的影响。
这是一项对前瞻性收集的部门数据库进行的为期6年的回顾性研究。BMI<25 kg/m²的患者符合研究条件。对所有发病率、住院时间以及短期和长期死亡率进行了评估。
704例患者被分为低BMI组（n = 71）和正常BMI组（n = 633）。与正常BMI组相比，低BMI组术后肺部并发症更高（24%对11%，P<0.001），住院死亡率更高（10%对5%）。使用多因素逻辑回归分析，低BMI是住院死亡率的独立危险因素。低BMI组1年、3年和5年生存率分别为90%、78%和70%，而正常BMI组分别为94%、86%和81%。
低BMI与心脏手术后发病率和死亡率增加相关。风险评分系统应在术前风险评估中使用BMI，尤其要关注低BMI情况。
