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Preoperative high C-reactive protein level is associated with an increased likelihood for conversion from laparoscopic to open appendectomy in patients with acute appendicitis

Authors Shimoda M, Maruyama T, Nishida K, Suzuki K, Tago T, Shimazaki J, Suzuki S

Received 30 November 2018

Accepted for publication 1 March 2019

Published 5 April 2019 Volume 2019:12 Pages 141—147

DOI https://doi.org/10.2147/CEG.S196471

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 3

Editor who approved publication: Prof. Dr. Wing-Kin Syn


Mitsugi Shimoda, Tsunehiko Maruyama, Kiyotaka Nishida, Kazuomi Suzuki, Tomoya Tago, Jiro Shimazaki, Shuji Suzuki

Department of Gastroenterological Surgery, Tokyo Medical University, Ibaraki Medical Center, Ami, Ibaraki, Japan

Background: Laparoscopic appendectomy (LA) has been increasingly adopted for its advantages over the open appendectomy, but there are possibilities of conversion from laparoscopic to open appendectomy (CA) if the patients had complicated appendicitis concurrently, or when the extent of inflammation prohibits successful procedure. In this retrospective study, we aimed to clarify the preoperative predictors for CA.
Patients and methods: From January 2010 to April 2016, medical records of 93 consecutive patients who underwent LA for suspected appendicitis were reviewed retrospectively. Factors evaluated were age, gender, body mass index, C-reactive protein (CRP), white cell count, albumin, Neutrophil count, lymphocyte count, Neutrophil/lymphocyte ratio, preoperative CT imaging (abscess formation: yes/no, appendicolith: yes/no), operative factors (time to operation, amount of bleeding), length of hospital stay, period until oral intake after surgery, and period from initial symptoms to surgery.
Results: CA occurred in nine patients (9.7%). The reason for conversion was severe dense adhesion in two cases, inadequate exposure of appendix in two cases, uncompleted appendectomy in two cases, perforated appendicitis in one case, gangrenous appendicitis in one case, and abscess formation in one case. Based on 93 patients evaluated by preoperative CT scan, significant factors in the final multivariate analysis associated with CA was CRP [odds ratio=1.13, 95% CI:1.00–1.28, p=0.04].
Conclusion: Identifying the potential factors for conversion preoperatively may assist the surgeons in making decisions concerning the management of patients with appendicitis and in the judicious use of LA.

Keywords: laparoscopic, conversion, appendectomy, C-reactive protein


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