Document Detail


Coronary surgery in patients with peripheral vascular disease: effect of avoiding cardiopulmonary bypass.
MedLine Citation:
PMID:  15063245     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: An increasing number of patients with peripheral vascular disease are undergoing coronary artery bypass grafting. Such patients have an increased risk of adverse outcomes. Our aim was to quantify the effect of avoiding cardiopulmonary bypass in this group of patients. METHODS: Between April 1997 and March 2002, 3,771 consecutive patients underwent coronary artery bypass grafting performed by five surgeons. Four hundred and twenty-two (11.2%) had peripheral vascular disease and of these, 211 (50%) received off-pump surgery. We used multivariate logistic regression analysis to assess the effect of off-pump surgery on in-hospital mortality and morbidity, while adjusting for treatment selection bias. Treatment selection bias was controlled for by constructing a propensity score, which was the probability of receiving off-pump surgery and included core patient characteristics. The C statistic for this model was 0.8. RESULTS: Off-pump patients were more likely to have preoperative renal dysfunction, previous gastrointestinal surgery, and less extensive disease. The left internal mammary artery was used more in off-pump compared to on-pump cases (90.1% vs 82.9%; p = 0.033). In the univariate analyses, off-pump patients were less likely to have a postoperative stroke (p = 0.007), and had shorter postoperative hospital stays (p < 0.001). However, the incidence of new atrial arrhythmia was higher (p = 0.028). After adjustment for differences in case-mix (propensity score), avoidance of cardiopulmonary bypass was still associated with a significant reduction in postoperative stroke (adjusted odds ratio 0.09 [95% confidence interval 0.02 to 0.50]; p = 0.005), and shorter postoperative hospital stay (p = 0.001). CONCLUSIONS: Off-pump coronary surgery is safe in patients with peripheral vascular disease, with acceptable results. The incidence of postoperative stroke is substantially reduced when avoiding cardiopulmonary bypass in patients with peripheral vascular disease.
Authors:
Shishir Karthik; Ghassan Musleh; Antony D Grayson; Daniel J M Keenan; D Mark Pullan; Walid C Dihmis; Ragheb Hasan; Brian M Fabri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  77     ISSN:  0003-4975     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-04-05     Completed Date:  2004-05-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1245-9     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiothoracic Surgery, The Cardiothoracic Centre, Liverpool, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Aged
Cardiopulmonary Bypass* / adverse effects*
Coronary Artery Bypass / adverse effects*
Coronary Disease / complications,  surgery
Female
Hospital Mortality
Humans
Logistic Models
Male
Middle Aged
Peripheral Vascular Diseases* / complications
Postoperative Complications
Risk Factors
Stroke / etiology

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


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