Clinical assessment of computed tomography for detecting ingested blister packs: A single‐center retrospective study

Author:

Ishihara Yo12ORCID,Ichita Chikamasa13ORCID,Jinushi Ryuhei14ORCID,Sasaki Akiko1

Affiliation:

1. Department of Gastroenterology Medicine Center Shonan Kamakura General Hospital Kanagawa Japan

2. Department of Palliative Medicine International University of Health and Welfare Narita Hospital Chiba Japan

3. Department of Health Data Science Yokohama City University Kanagawa Japan

4. Department of Gastroenterology Saitama Medical University International Medical Center Saitama Japan

Abstract

AbstractObjectivesBlister pack (BP) ingestion poses serious risks, such as gastrointestinal perforation, and accurate localization by computed tomography (CT) is a common practice. However, while it has been reported in vitro that CT visibility varies with the material type of BPs, there have been no reports on this variability in clinical settings. In this study, we investigated the CT detection rates of different BPs in clinical settings.MethodsThis single‐center retrospective study from 2010 to 2022 included patients who underwent endoscopic foreign body removal for BP ingestion. The patients were categorized into two groups for BP components, the polypropylene (PP) and the polyvinyl chloride (PVC)/polyvinylidene chloride (PVDC) groups. The primary outcome was the comparison of CT detection rates between the groups. We also evaluated whether the BPs contained tablets and analyzed their locations.ResultsThis study included 61 patients (15 in the PP group and 46 in the PVC/PVDC group). Detection rates were 97.8% for the PVC/PVDC group compared to 53.3% for the PP group, a significant difference (p < 0.01). No cases of BPs composed solely of PP were detected by CT. Blister packs were most commonly found in the upper thoracic esophagus.ConclusionsEven in a clinical setting, the detection rates of PVC and PVDC were higher than that of PP alone. Identifying PP without tablets has proven challenging in clinical. Considering the risk of perforation, these findings suggest that esophagogastroduodenoscopy may be necessary, even if CT detection is negative.

Publisher

Wiley

Reference34 articles.

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