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 .
Derivation and Diagnostic Accuracy of the Surgical Lung Injury Prediction Model
Background :  Acute lung injury ( ALI )  is a serious postoperative complication with limited treatment options . A preoperative risk-prediction model would assist clinicians and scientists interested in ALI . The objective of this investigation was to develop a surgical lung injury prediction ( SLIP ) model to predict risk of postoperative ALI based on readily available preoperative risk factors . Methods : Secondary analysis of a prospect i ve cohort investigation including adult patients undergoing high-risk surgery . Preoperative risk factors for postoperative ALI were identified and evaluated for inclusion in the SLIP model . Multivariate logistic regression was used to develop the model . Model performance was assessed with the area under the receiver operating characteristic curve and the Hosmer-Lemeshow goodness-of-fit test . Results : Out of 4,366 patients , 113 ( 2.6 % ) developed early postoperative ALI . Predictors of postoperative ALI in multivariate analysis that were maintained in the final SLIP model included high-risk cardiac , vascular , or thoracic surgery , diabetes mellitus , chronic obstructive pulmonary disease , gastroesophageal reflux disease , and alcohol abuse . The SLIP score distinguished patients who developed early  postoperative ALI from those who did not with an area under the receiver operating characteristic curve ( 95 % CI ) of 0.82 ( 0.78–0.86 ) . The model was well calibrated ( Hosmer-Lemeshow , P = 0.55 ) . Internal validation using 10-fold cross-validation noted minimal loss of diagnostic accuracy with a mean ± SD area under the receiver operating characteristic curve of 0.79 ± 0.08 . Conclusions : Using readily available preoperative risk factors , we developed the SLIP scoring system to predict risk of early postoperative ALI
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 .