Preoperative smoking status was not observed to be associated with postoperative mortality , cardiovascular complications , bleedings , anastomotic leakage , or allograft rejection .
CONCLUSIONS Preoperative smoking was found to be associated with an increased risk of the following postoperative complications : general morbidity , wound complications , general infections , pulmonary complications , neurological complications , and admission to the intensive care unit
OBJECTIVE To systematic ally review and summarize the evidence of an association between preoperative smoking status and postoperative complications elaborated on complication type .
BACKGROUND The conclusions of studies examining the association between preoperative smoking and postoperative complications are inconsistent , thus there is a need for a review and meta- analysis to summarize the existing evidence .
A multivariate analysis of the risk of pulmonary complications after laparotomy.
We evaluated the relationship between PPC and various putative risk factors in a prospect i ve longitudinal study of 1,000 patients undergoing abdominal surgery .  Transient sub clinical events were excluded by defining PPC as positive clinical findings in combination with either positive sputum microbiology , unexplained pyrexia , or positive chest roentgenographic findings . The overall incidence of PPC was 23.2 percent ( 232/1,000 ) . Multivariate analysis identified seven factors which were associated with PPC : ASA classification greater than 2 , upper abdominal surgery , residual intraperitoneal sepsis , age greater than 59 years , BMI greater than 25 , preoperative hospital stay greater than 4 days , and colorectal or gastroduodenal surgery ( overall F score = 33.5 , p less than 0.0001 ) . The ASA classification was the most powerful indicator of risk in both the univariate and the multivariate analyses . The combination of ASA classification greater than 1 and age greater than 59 years identified 88 percent ( 205 of 232 ) of the patients who developed PPC . These findings provide clinicians and clinical investigators with a simple means of identifying patients who are at high risk of PPC after abdominal surgery
Preoperative smoking status was not observed to be associated with postoperative mortality , cardiovascular complications , bleedings , anastomotic leakage , or allograft rejection .
CONCLUSIONS Preoperative smoking was found to be associated with an increased risk of the following postoperative complications : general morbidity , wound complications , general infections , pulmonary complications , neurological complications , and admission to the intensive care unit
OBJECTIVE To systematic ally review and summarize the evidence of an association between preoperative smoking status and postoperative complications elaborated on complication type .
BACKGROUND The conclusions of studies examining the association between preoperative smoking and postoperative complications are inconsistent , thus there is a need for a review and meta- analysis to summarize the existing evidence .