Page 246 - Sách năm 2022 - Fulltext - hieu final

COMPUTED TOMOGRAPY FINDING OF ALIMENTARY TRACT

PERFORATION AS A RESULT OF FOREIGN BODIES

Pham Minh Quang

Hoan My Sai Gon Hospital
ABSTRACT

Background: Alimentary tract perforation caused by foreign bodies (FBs) is the

uncommon for emergency surgery; its clinical manifestations are so diverse that the
correct clinical diagnosis are rarely made. Computed tomography (CT) is the most

efficient tool for detection and pre-operation management.

Objectives: Describing the CT characteristics of FBs that cause alimentary

perforation. Describing the valuation of CT characteristics in detection the perforation

location due to the FBs.
Materials and methods: All patients who underwent surgery or endoscopy to

remove FBs causing alimentary perforation between 2020 January and 2022 July in

Hoan My Hospital were retrospectively reviewed. All patients had CT with DICOM

standard.

Result: In 30 reviewed patient, the age group above 40 took the first place with
70%. All the patients had perforation in gastrointestinal tracts and 40% all them were

firstly diagnosed not emergency surgery. Only 23,3% had the diagnosis FBs before

surgery. The common FBs were fish bone (83,3%). The sensitive in detecting FBs of

abdominal ultrasound, conventional X-rays and CT were 8,7%, 33%, 100%

respectively. Localized extraluminal air when combined with focal wall defect would
elevate the accuracy for perforation site up to 94,4% for positive predictive value (PPV)

and 83,3% for Specific (Sp).

Conclusion: Alimentary tract perforation caused by FBs is uncommon but it has

variety clinical manifestation. CT is dominant to X-rays and Abdominal ultrasound for

diagnosing FBs and perforation site detection.

Keyword: Foreign body (FB), gastrointestinal perforation caused by FBs.

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