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Publications (2)11.24 Total impact

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    ABSTRACT: The aim of this study was to investigate the effects of institutional volume on postoperative mortality in patients undergoing emergency major colorectal surgical procedures in England between 2001 and 2005. All of the emergency excisional colorectal procedures performed between the above dates were included from the Hospital Episode Statistics data set. Institutions were divided into high-, medium-, and low-volume tertiles according to the total major emergency colorectal caseload. During the study period, 37,094 emergency excisional colorectal procedures were performed in 166 English National Health Service institutions. Overall 30-day postoperative mortality was 15.49%, increasing to 29.18% at 1 year after surgery. Overall 30- and 365-day mortality rates were similar among institutional volume tertiles (P > .05) after adjustment for age, sex, social deprivation, diagnosis, procedure type, and comorbidity score. Hospital Episode Statistics data suggest that institutions with high volumes of emergency colorectal caseload do not demonstrate lower mortality after emergency major excisional colorectal surgery.
    Diseases of the Colon & Rectum 04/2010; 53(4):393-401. · 3.34 Impact Factor
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    ABSTRACT: This study investigated length of stay, readmission rates, and postoperative mortality in adult patients undergoing traditional and laparoscopic appendectomy in England between April 1, 1996, and March 31, 2006. All procedures coded to the "H01-Emergency Excision of Appendix" procedure code in the Hospital Episode Statistics database were included. Multivariate analyses were used to identify independent predictors of length of hospital stay, 30-day and 365-day mortality. A total of 259,735 procedures were assigned to the H01-Emergency excision of appendix OPCS-4 3-digit code procedure between 1996 and 2006. A laparoscopic technique was employed in 16,315 (6.3%). A greater proportion of deaths occurred in hospital within 30 days of "open" appendectomy surgery (0.25%) compared with procedures utilizing a laparoscopic technique (0.09%, P < 0.001). One-year mortality rates, measured over a 5-year period, were also higher after open surgery (0.64% vs. 0.29%, P < 0.001). Multiple logistic regressions demonstrated that an open operative technique, older age, male gender, and increasing comorbidity were strong independent determinants of early and 1-year postoperative mortality after emergency appendectomy. The duration of stay for patients undergoing open emergency appendectomy exceeded that for patients undergoing the laparoscopic technique (P < 0.001). Patients undergoing a laparoscopic technique were, however, more likely to be readmitted within 28 days of surgery (7.10% vs. 4.95%, P < 0.001). Laparoscopic appendectomy is safe and associated with lower postoperative mortality rates than open procedures. The cost implications are uncertain as this technique is associated with shorter hospital stay but higher subsequent readmission rates.
    Annals of surgery 11/2008; 248(5):800-6. · 7.90 Impact Factor