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Copyright ©2007 Baishideng Publishing Group Co., Limited. All rights reserved.
World J Gastroenterol. Jun 21, 2007; 13(23): 3228-3231
Published online Jun 21, 2007. doi: 10.3748/wjg.v13.i23.3228
Evaluation of prognostic factors and scoring system in colonic perforation
Atsushi Horiuchi, Yuji Watanabe, Takashi Doi, Kouichi Sato, Syungo Yukumi, Motohira Yoshida, Yuji Yamamoto, Hiroki Sugishita, Kanji Kawachi
Atsushi Horiuchi, Yuji Watanabe, Takashi Doi, Kouichi Sato, Syungo Yukumi, Motohira Yoshida, Yuji Yamamoto, Hiroki Sugishita, Kanji Kawachi, Department of Surgery 2, Ehime University School of Medicine, Japan
Author contributions: All authors contributed equally to the work.
Correspondence to: Atsushi Horiuchi, Department of Surgery 2, Ehime University School of Medicine, Shitsukawa, Toon-city, Ehime 791-0295, Japan. atsushi@m.ehime-u.ac.jp
Telephone: +81-89-9605331 Fax: +81-89-9605335
Received: March 12, 2007
Revised: April 2, 2007
Accepted: April 23, 2007
Published online: June 21, 2007
Abstract

AIM: To study the significance of scoring systems assessing severity and prognostic factors in patients with colonic perforation.

METHODS: A total of 26 patients (9 men, 17 women; mean age 72.7 ± 11.6 years) underwent emergency operation for colorectal perforation in our institution between 1993 and 2005. Several clinical factors were measured preoperatively and 24 h postoperatively. Acute physiology and chronic health evaluation II (APACHE II), Mannheim peritonitis index (MPI) and peritonitis index of Altona (PIA II) scores were calculated preoperatively.

RESULTS: Overall postoperative mortality rate was 23.1% (6 patients). Compared with survivors, non-survivors displayed low blood pressure, low serum protein and high serum creatinine preoperatively, and low blood pressure, low white blood cell count, low pH, low PaO2/FiO2, and high serum creatinine postoperatively. APACHE II score was significantly lower in survivors than in non-survivors (10.4 ± 3.84 vs 19.3 ± 2.87, P = 0.00003). Non-survivors tended to display high MPI score and low PIA II score, but no significant difference was identified.

CONCLUSION: Pre- and postoperative blood pressure and serum creatinine level appear related to prognosis of colonic perforation. APACHE II score is most associated with prognosis and scores ≥ 20 are associated with significantly increased mortality rate.

Keywords: Scoring system, Colonic perforation, Prognostic factor