Document Detail


Effect of gender on postoperative outcomes and hospital stays after coronary artery bypass grafting.
MedLine Citation:
PMID:  10320257     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Compared to men, women undergoing coronary artery bypass grafting appear to have a higher morbidity and mortality, particularly in the perioperative period. This study was designed to answer the questions of whether such differences in clinical outcomes between men and women still exist with improvements in surgical techniques and determine whether it is gender or associated comorbid conditions in women that lead to higher morbidity. METHODS: An analysis of a single center's contemporary experience (1994 to 1997) of 1,743 consecutive patients undergoing primary coronary artery bypass grafting was performed. Only reoperations were excluded. Data were collected prospectively and presented as mean +/- standard deviation (p<0.05). RESULTS: Women represented 30.0% of patients. Compared with men, women were older (68.4 versus 63.8 years; p<0.05), and had more urgent surgical interventions (70.0% versus 56.7%; p<0.05), a higher incidence of diabetes (42.1% versus 26.7%; p<0.05), hypertension (82.0% versus 73.9%; p<0.05), lower body surface area (1.73+/-0.18 m2 versus 2.03+/-0.19 m2; p<0.05), and hematocrit (31.7%+/-3.9% versus 36.2%+/-3.9%; p<0.05). Ejection fraction, incidence of previous myocardial infarction, chronic obstructive pulmonary disease, left main (LM) disease, renal insufficiency, extent of coronary disease, and preoperative intraaortic balloon pump were similar. Women received fewer arterial grafts (91.0% versus 95.5%; p<0.05) and distal anastomoses (3.31+/-0.88 versus 3.49+/-0.94 p<0.05). Despite these differences, there were no statistical differences in the incidence of postoperative death (1.5% versus 1.0%), myocardial infarction (0.6% versus 0.6%), or cerebrovascular accident/transient ischemic attack (1.1% versus 0.4%) between men and women. Women had a higher inotropic support (10.2% versus 4.4%; p<0.05) and longer hospital stays (7.3+/-5.7 days versus 6.3+/-4.2 days; p<0.05). Using multivariate analysis, female gender was not an independent predictor of death or postoperative complications but was a predictor of length of hospital stay, use of arterial grafts, and extent of coronary revascularization. CONCLUSIONS: After accounting for differences in their risk variables, the incidences of death, perioperative myocardial infarction and cerebrovascular accident/ transient ischemic attack after coronary artery bypass grafting in women and men were not statistically significant. Perioperative complications are related to comorbid risk factors but not to female gender itself. Further studies are warranted.
Authors:
G S Aldea; J M Gaudiani; O M Shapira; A K Jacobs; J Weinberg; A L Cupples; H L Lazar; R J Shemin
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  67     ISSN:  0003-4975     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  1999 Apr 
Date Detail:
Created Date:  1999-05-25     Completed Date:  1999-05-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1097-103     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiothoracic Surgery, Boston University School of Medicine, Boston Medical Center, Massachusetts, USA.
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Aged
Body Surface Area
Cardiotonic Agents / therapeutic use
Coronary Artery Bypass* / mortality
Diabetes Complications
Female
Hematocrit
Humans
Hypertension / complications
Length of Stay*
Male
Middle Aged
Postoperative Complications
Prospective Studies
Risk Factors
Sex Factors
Treatment Outcome
Chemical
Reg. No./Substance:
0/Cardiotonic Agents

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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