An outcome-based composite approach for the diagnosis of intestinal tuberculosis : a pilot study from a tertiary care centre in South India
BACKGROUND: The diagnosis of intestinal TB (ITB) is challenging because of its overlapping features with Crohn's disease. This outcome-based study evaluated the combination of colonoscopy, histopathology, Xpert MTB/RIF and TB culture for best sensitivity and specificity.
METHOD: This was a four-year retrospective, observational study of 426 clinically suspected patients who underwent colonoscopy with biopsies for histopathology, Xpert MTB/RIF and TB culture. ITB was diagnosed using the composite reference standard (CRS), which comprised either histological features or culture or Xpert MTB/RIF positivity, and positive response to anti-tuberculous treatment on follow up.
RESULTS: 35 (8.2%) patients were diagnosed with ITB. Histopathology had the highest sensitivity (91.4%) and negative predictive value (99.2%), MTB/RIF had the highest specificity (100%) and positive predictive value (100%). A combinatorial approach with Xpert MTB/RIF and histopathology had optimal diagnostic value (97%), approaching 100% sensitivity with culture. 40% of cases were diagnosed within 12 hours with Xpert MTB/RIF and 97% cases within three days.
CONCLUSION: This combinatorial diagnostic model provides rapid and reliable diagnosis of ITB which may be useful in endemic areas.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2021 |
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Erschienen: |
2021 |
Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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Enthalten in: |
The journal of the Royal College of Physicians of Edinburgh - 51(2021), 4 vom: 22. Dez., Seite 344-350 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Paulose, Roopa Rachel [VerfasserIn] |
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Links: |
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Themen: |
Colonoscopy |
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Anmerkungen: |
Date Completed 26.01.2022 Date Revised 26.01.2022 published: Print Citation Status MEDLINE |
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doi: |
10.4997/JRCPE.2021.406 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM334186951 |
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520 | |a BACKGROUND: The diagnosis of intestinal TB (ITB) is challenging because of its overlapping features with Crohn's disease. This outcome-based study evaluated the combination of colonoscopy, histopathology, Xpert MTB/RIF and TB culture for best sensitivity and specificity | ||
520 | |a METHOD: This was a four-year retrospective, observational study of 426 clinically suspected patients who underwent colonoscopy with biopsies for histopathology, Xpert MTB/RIF and TB culture. ITB was diagnosed using the composite reference standard (CRS), which comprised either histological features or culture or Xpert MTB/RIF positivity, and positive response to anti-tuberculous treatment on follow up | ||
520 | |a RESULTS: 35 (8.2%) patients were diagnosed with ITB. Histopathology had the highest sensitivity (91.4%) and negative predictive value (99.2%), MTB/RIF had the highest specificity (100%) and positive predictive value (100%). A combinatorial approach with Xpert MTB/RIF and histopathology had optimal diagnostic value (97%), approaching 100% sensitivity with culture. 40% of cases were diagnosed within 12 hours with Xpert MTB/RIF and 97% cases within three days | ||
520 | |a CONCLUSION: This combinatorial diagnostic model provides rapid and reliable diagnosis of ITB which may be useful in endemic areas | ||
650 | 4 | |a Journal Article | |
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650 | 4 | |a colonoscopy | |
650 | 4 | |a histopathology | |
650 | 4 | |a intestinal tuberculosis | |
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700 | 1 | |a Sudhakar, Abish |e verfasserin |4 aut | |
700 | 1 | |a Koshy, Anoop K |e verfasserin |4 aut | |
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