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Arch Surg. 2012 Jul;147(7):649-55. doi: 10.1001/archsurg.2012.825.

Worse outcomes in patients undergoing urgent surgery for left-sided diverticulitis admitted on weekends vs weekdays: a population-based study of 31 832 patients.

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1
Research on Research Group, Department of Surgery, Duke University Medical Center, 2301 Erwin Rd, Durham, NC 27710, USA. mathias.worni@duke.edu

Abstract

HYPOTHESIS:

Among patients undergoing urgent surgery for left-sided diverticulitis, those admitted on weekends vs weekdays have higher rates of Hartmann procedure and adverse outcomes.

DESIGN:

Analysis of data from the Nationwide Inpatient Sample between January 2002 and December 2008. Unadjusted and risk-adjusted generalized linear regression models were used.

SETTING:

Academic research.

PATIENTS:

Data on patients undergoing urgent surgery for acute diverticulitis.

MAIN OUTCOME MEASURES:

Rates of Hartmann procedure vs primary anastomosis, complications, length of hospital stay, and total hospital charges.

RESULTS:

In total, 31 832 patients were included; 7066 (22.2%) were admitted on weekends, and 24 766 (77.8%) were admitted on weekdays. The mean (SD) age of patients was 60.8 (15.3) years, and 16 830 (52.9%) were female. A Hartmann procedure was performed in 4580 patients (64.8%) admitted on weekends compared with 13 351 patients (53.9%) admitted on weekdays (risk-adjusted odds ratio [OR], 1.57; P < .001). In risk-adjusted analyses, patients admitted on weekends had significantly higher risk for any postoperative complication (OR, 1.10; P = .005) and nonroutine hospital discharge (OR, 1.33; P < .001) compared with patients admitted on weekdays, as well as a median length of hospital stay that was 0.5 days longer and median total hospital charges that were $3734 higher (P < .001 for both).

CONCLUSIONS:

Patients undergoing urgent surgery for left-sided diverticulitis who are admitted on a weekend have a higher risk for undergoing a Hartmann procedure and worse short-term outcomes compared with patients who are admitted on a weekday. Further research is warranted to investigate possible underlying mechanisms and to develop strategies for reducing this substantial weekend effect.

PMID:
22802061
DOI:
10.1001/archsurg.2012.825
[Indexed for MEDLINE]
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