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. 2022 Aug;29(4):723-728.
doi: 10.1007/s10140-022-02055-z. Epub 2022 May 14.

Prediction of extensive necrotic change in acute gangrenous cholecystitis

Atsushi Kohga  1 , Kenji Suzuki  2 , Takuya Okumura  2 , Akihiro Makino  2 , Kimihiro Yamashita  2 , Jun Isogaki  2 , Akihiro Kawabe  2 , Katsuaki Muramatsu  3 , Taizo Kimura  2
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Prediction of extensive necrotic change in acute gangrenous cholecystitis

Atsushi Kohga et al. Emerg Radiol. 2022 Aug.

Abstract

Purpose: Gangrenous cholecystitis (GC) is a severe type of acute cholecystitis that implies higher mortality and morbidity rates than uncomplicated cholecystitis. The characteristics of GC are various for each case. However, preoperative predictors of GC with extensive necrotic change have not been investigated well.

Methods: A total of 239 patients who were pathologically diagnosed with GC underwent laparoscopic cholecystectomy at our hospital between January 2013 and December 2021. Of these, 135 patients were included in this study and were subdivided into the extensive necrosis group (patients with necrotic change extending to the neck of the gallbladder, n = 18) and the control group (patients with necrotic change limited to the fundus or body, not extending to the neck, n = 117) according to each operation video. Patient characteristics and perioperative factors predicting extensive necrotic change were investigated.

Results: Pericholecystic fat stranding (83.3 vs. 53.8%, p = 0.018) and absence of wall enhancement on preoperative CT images (50.0 vs. 24.7%, p = 0.026) were significantly associated with extensive necrosis. Seven of 18 patients in the extensive necrosis group showed necrotic changes beyond the infundibulum. The absence of wall enhancement on preoperative CT images (71.4 vs. 28.8%, p = 0.018) was significantly associated with necrotic changes beyond the infundibulum.

Conclusions: Pericholecystic fat stranding and absence of wall enhancement on preoperative enhanced CT are predictors of extensive necrotic change in patients with GC. In addition, the absence of wall enhancement also predicts the presence of necrotic changes beyond the infundibulum.

Keywords: Absence of wall enhancement; Gangrenous cholecystitis; Laparoscopic cholecystectomy; Pericholecystic fat stranding.

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