Factors predisposing to median sternotomy complications - Deep vs superficial infection

被引:232
作者
Zacharias, A
Habib, RH
机构
[1] Department of Cardiothoracic Surgery, St. Vincent Medical Center, Toledo, OH
[2] St. Vincent Medical Center, ACC 309, Toledo, OH 43608-2691
关键词
mediastinitis; multivariate analysis; risk factors; univariate analysis;
D O I
10.1378/chest.110.5.1173
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Study objectives: Median sternotomy infections are a serious complication of cardiac surgery. The purpose of this study was to determine the patient characteristics and operative variables that predict incidence of sternal infection, and possibly its severity. Design: Univariate and multivariate retrospective analysis comparing patient, operative, and post-operative data in patients with and without sternal infections. Setting: Cardiac surgery program of a 580-bed private hospital in Toledo, Ohio. Patients: We studied 2,317 consecutive (June 1991 to December 1994) patients undergoing cardiac surgery. Results: Forty-one sternal infections were documented. Of these, 21 (0.91%) were deep infections with mediastinal involvement and 20 (0.86%) were superficial. Two patients with deep infections died (2/41, 5%). Ten variables were associated with infection by univariate analysis (p<0.05), and of these, five were independent predictors by multivariate logistic regression. These predictors were obesity (p<0.001), insulin-dependent diabetes (p<0.001), use of internal mammary artery grafts (p=0.02), surgical reexploration of the mediastinum (p=0.003), and postoperative transfusions (p=0.01). Predictors of deep and superficial sternal infection did not differ. Length of hospitalization was substantially longer for patients with deep (32+/-21 days) vs superficial infection (13+/-10 days). Conclusions: The present study confirms previous findings that obesity, insulin-dependent diabetes, and internal mammary artery grafting (especially bilaterally) increase the risk of sternal infection, In addition, chest surgical reexploration and blood transfusions were postoperative factors that predisposed patients with median sternotomy to infection. Unlike their associated morbidity and mortality, predictors of deep and superficial sternal infections are similar.
引用
收藏
页码:1173 / 1178
页数:6
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