[Qualitative and semiquantitative invasive and noninvasive diagnosis of Helicobacter pylori colonization of gastric mucosa].
In 110 patients with unknown Helicobacter pylori status and without anti-bacterial treatment submitted for routine endoscopy of the upper gastrointestinal tract biopsies were taken from the antral and body mucosa, which were assessed for H. pylori colonisation and/or gastritis by an urease test (Jatrox H. p.-Test), microscopy after methylene-blue staining of a mucosal smear, specific culture and histology (stains: haematoxylin & eosin and Warthin-Starry). In addition, a simplified 13C-urea breath test was validated. A complete set of data was available from 104 patients (64 women - 40 men, median of age: 55 years [range: 17-92 years], H. pylori positive histologically and/or culturally [goldstandard]: n = 67). The test criteria sensitivity, specificity, positive and negative predictive value were calculated to be 100%/100%/100%/100% for the urease test, 76.1%/100%/100%/69.8% for microscopy of a mucosal smear, and 92.5%/97.3%/98.4%/88.1% for 13C-urea breath test (two-point measurement). Statistical analysis demonstrated highly significant (p < 0.0001) correlations between the reaction velocity of the urease test, the histologically visible degree of Helicobacter pylori colonisation and the differences of the delta-values of the 13C-urea breath test on the one hand and between grade and activity of gastritis as well as between the gastritis and activity scores, respectively, and the semi-quantitatively categorized results of the urease test, the histological degree of H. pylori colonisation and the 13C-urea breath test on the other hand.(ABSTRACT TRUNCATED AT 250 WORDS)
Labenz
J
J
Medizinische Klinik des Elisabeth-Krankenhauses Essen.
Stolte
M
M
Aygen
S
S
Hennemann
O
O
Bertrams
J
J
Börsch
G
G
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D001944:Breath Tests; D004381:Duodenal Ulcer / Q000473:pathology; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology; D005756:Gastritis / Q000473:pathology*; D005773:Gastroscopy; D016481:Helicobacter Infections / Q000473:pathology*; D016480:Helicobacter pylori / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013276:Stomach Ulcer / Q000473:pathology; D014510:Urease / Q000032:analysis
D014510:Urease