Body mass index and acute kidney injury in the acute respiratory distress syndrome

被引:102
|
作者
Soto, Graciela J. [1 ]
Frank, Angela J. [3 ]
Christiani, David C. [2 ,3 ]
Gong, Michelle Ng [1 ,4 ]
机构
[1] Montefiore Med Ctr, Dept Med, Jay B Langner Crit Care Serv, Div Crit Care Med, Bronx, NY 10467 USA
[2] Harvard Univ, Sch Publ Hlth, Dept Environm Hlth, Environm & Occupat Med & Epidemiol Program, Boston, MA 02115 USA
[3] Massachusetts Gen Hosp, Dept Med, Pulm & Crit Care Unit, Boston, MA 02114 USA
[4] Albert Einstein Coll Med, Dept Epidemiol & Populat Hlth, Bronx, NY 10467 USA
基金
美国国家卫生研究院;
关键词
acute kidney injury; acute respiratory distress syndrome; body mass index; mortality; obesity; ACUTE-RENAL-FAILURE; ACUTE LUNG INJURY; CRITICALLY-ILL PATIENTS; INTENSIVE-CARE-UNIT; MECHANICALLY VENTILATED PATIENTS; HOSPITALIZED-PATIENTS; INTERLEUKIN-18; LEVELS; CONSENSUS CONFERENCE; INSULIN-RESISTANCE; METABOLIC SYNDROME;
D O I
10.1097/CCM.0b013e3182591ed9
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Objectives: Obesity is increasingly encountered in intensive care units but the relationship between obesity and acute kidney injury is unclear. We aimed to evaluate whether body mass index was associated with acute kidney injury in the acute respiratory distress syndrome and to examine the association between acute kidney injury and mortality in patients with and without obesity. Design: Retrospective study. Setting: Massachusetts General Hospital and Beth Israel Deaconess Medical Center. Patients: Seven hundred fifty-one patients with acute respiratory distress syndrome. Interventions: None. Measurements and Main Results: Acute kidney injury was defined as meeting the "Risk" category according to modified Risk, Injury, Failure, Loss, End-stage criteria based on creatinine and glomerular filtration rate because urine output was only available on the day of intensive care unit admission. Body mass index was calculated from height and weight at intensive care unit admission. The prevalence of acute kidney injury increased significantly with increasing weight (p = .01). The odds of acute kidney injury were twice in obese and severely obese patients compared to patients with normal body mass index, after adjusting for predictors of acute kidney injury (age, diabetes, Acute Physiology and Chronic Health Evaluation III, aspiration, vasopressor use, and thrombocytopenia [platelets <= 80,000/mm(3)]). After adjusting for the same predictors, body mass index was significantly associated with acute kidney injury (odds ratio(adj) 1.20 per 5 kg/m(2) increase in body mass index, 95% confidence interval 1.07-1.33). On multivariate analysis, acute kidney injury was associated with increased acute respiratory distress syndrome mortality (odds ratioad, 2.76, 95% confidence interval 1.72-4.42) whereas body mass index was associated with decreased mortality (odds ratio(adj) 0.81 per 5 kg/m(2) increase in body mass index, 95% confidence interval 0.71-0.93) after adjusting for mortality predictors. Conclusions: In acute respiratory distress syndrome patients, obesity is associated with increased development of acute kidney injury, which is not completely explained by severity of illness or shock. Although increased body mass index is associated with decreased mortality, acute kidney injury remained associated with higher mortality even after adjusting for body mass index. (Crit Care Med 2012; 40:2601-2608)
引用
收藏
页码:2601 / 2608
页数:8
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