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  • Title: [BREATH TEST WITH LOCALLY PRODUCED 13С-UREA (TBILISI, GEORGIA) IN DIAGNOSTICS OF HELICOBACTER PYLORI INFECTION].
    Author: Girdaladze A, Mosidze B, Elisabedashvili G, Kordzaia D.
    Journal: Georgian Med News; 2016 Apr; (253):77-85. PubMed ID: 27249440.
    Abstract:
    Comparative assessment of results of detection of Helicobacter pylori (Hp) infection by breath tests with standard and locally produced 13С urea was done in 213 patients with gastric and duodenal pathology, including those who already were undergone the surgery. Invasive endoscopic biopsy test including rapid urease test (RUT), smear cytology and histology were also performed (tissue samples were obtained after endoscopy or surgery). RUT was carried out with the help of URE-HP test kit. Serological test for Hp antibodies was performed by IFA using kit ELISA. 13С urea breath test (UBT) was conducted for the determination of 13/12CO2 in breath samples by using of infrared spectroscope. In I group (125 patients) UBT was performed with standard 13С urea, in II group (88 patients) with locally produced 13С urea. Based on 5 different methods of Hp infection testing Hp positivity in 172 (80,8%) and Hp negativity in 41 (19,2%) patients were revealed. 13С-UBT showed the highest diagnostic value (accuracy-97,5%, sensibility-97,0%, specificity-100%) in Hp infection diagnosis. The (accuracy, sensibility and specificity of breath test with locally issued 13С urea (98,7%, 98,5% and 100% respectively) are the same as those for BT with standard 13С urea (96,7%, 96,2% and 100% respectively). These parameters are also highly credible in control of treatment efficiency (96,7%, 90,0% and 100% respectively). The correlation of index DOB‰ of breath test with results of RUT was revealed In Hp positive patients. This can serve as a marker of Hp infection rate. Preliminarily, in pre-clinical experimental study, harmless of locally issued 13С-urea from point of view of acute/sub-acute toxicity and allergy development was confirmed. The advantages (noninvasiveness, simplicity, rapidity, safety) and high diagnostic value of UBT (with both standard as well as locally produced 13С-urea) provide the opportunity to offer 13С-UBT as screening method of Hp infection diagnosis. It also should be recommended as a method of choice for controlling of Hp treatment efficiency. Taking into the consideration all above-mentioned we may recommend locally produced 13С-urea (Tbilisi, Georgia) for certification and further application.
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