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Clinical and laboratory features of intestinal tuberculosis

 

Authors Patel B, Yagnik VD

Received 16 October 2017

Accepted for publication 20 December 2017

Published 13 March 2018 Volume 2018:11 Pages 97—103

DOI https://doi.org/10.2147/CEG.S154235

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Justinn Cochran

Peer reviewer comments 2

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

Background/aims: As increasing numbers of Crohn’s disease (CD) cases are being recognized in India, so the differential diagnosis of CD and gastrointestinal tuberculosis (GITB) is becoming increasingly important. If patients are misdiagnosed with GITB, toxicity may result from unnecessary anti-TB therapy and treatment of the primary disease (ie, CD) gets delayed. We therefore aimed to assess the accuracy of various parameters that can be used to predict GITB diagnosis at index evaluation.
Materials and methods: This was a prospective, unicentric, observational study carried out in the gastroenterology department of a tertiary care hospital between August 2011 and January 2013. Patients who presented to our hospital and were suspected of having GITB were included in our study. Patients were then followed up over a 6-month period.
Statistical analysis: Chi-square test was used to analyze the data.
Results: Of the 69 patients with GITB, 49 (71.01%) had thickening of the involved part of the colon and 33 (47.83%) had abdominal lymphadenopathy. The ileocecal valve was involved in 58 patients (84.05%) Histological detection of granulomas had 78.95% specificity, 36.23% sensitivity, and 51.40% accuracy. Tuberculosis polymerase chain reaction was found to have 78.95% specificity, 71.01% sensitivity, and 73.83% accuracy. BACTEC-MGIT culture was found to have 100% specificity, 20.29% sensitivity, and 48.60% accuracy.
Conclusion: Although histology is helpful in ruling out other conditions, TB-specific findings such as caseating granuloma and acid-fast bacilli are rarely seen. Instead, tuberculosis polymerase chain reaction has the highest diagnostic accuracy followed by BACTEC culture.
Keywords: gastrointestinal tuberculosis, colonoscopy, TB polymerase chain reaction, BACTEC culture, antituberculous treatment, biopsy

 


摘要视频链接Clinical and laboratory features of intestinal tuberculosis