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Articles

Types and site distributions of intestinal injuries in seat belt syndrome

ORCID Icon, , , , , , , , , & show all
Pages 442-446 | Received 11 Oct 2019, Accepted 22 May 2020, Published online: 17 Jun 2020
 

Abstract

Objective

Intestinal injuries in seat belt syndrome are relatively uncommon but can be potentially lethal due to accompanying peritonitis and hemorrhaging. It can be difficult to identify the exact injury sites of the intestine as multiple areas are often damaged and massive intraperitoneal hemorrhaging may make it challenging to determine causal bleeding points of mesenteric injuries. This study aimed to clarify the incidence and distribution of intestinal injuries in seat belt syndrome.

Methods

We retrospectively reviewed the clinical records of 25 patients who underwent laparotomy for suspected intestinal injuries due to seat belt syndrome during a frontal impact. The incidence and distribution of the sites of intestinal injuries, as well as associated injuries, were investigated. Intestinal injuries were divided into bowel and mesenteric injuries. Additionally, bowel injuries were classified into two types: perforation and non-perforation (seromuscular tears/intramural hematomas). Regarding the injured sites, the small intestine was divided into the following three parts: (1) the ligament of Treitz (100-cm distal from the ligament [proximal jejunum]), (2) the ileocecal valve (100-cm proximal from the valve [distal ileum]), and (3) the intermediate area between those two regions (jejunoileal junction).

Results

In total, there were 64 major injuries among 25 patients requiring surgical intervention: 34 bowel injuries (20 perforations and 14 non-perforations) and 30 mesenteric injuries. Significantly more bowel perforations occurred in the small intestine (1 [interquartile range (IQR), 0–1]) than in the large intestine (0 [IQR, 0–0]) (p = 0.003). Similarly, significantly more mesenteric injuries occurred in the small intestine (1 [IQR, 0–1.25]) than in the large intestine (0 [IQR, 0–0]) (p < 0.001). Specific sites of the mesenteric injuries in the small intestine included the jejunoileal junction (0 [IQR, 0–1]) and distal ileum (0 [IQR, 0–1]); the jejunoileal junction was significantly more vulnerable than the proximal jejunum (0 [IQR, 0–0]) (p = 0.015).

Conclusions

In patients with seat belt syndrome, the small intestine was more vulnerable to perforation and mesenteric injury than the large intestine. Additionally, for mesenteric injuries, the jejunoileal junction was more likely to be damaged than the proximal jejunum.

Acknowledgments

We would like to thank Editage (www.editage.com) for English language editing.

Disclosure statement

The authors declare that they have no conflict of interest.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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