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  • 1
    Electronic Resource
    Electronic Resource
    Randomized controlled study of rabeprazole, levofloxacin and rifabutin triple therapy vs. quadruple therapy as second-line treatment for 〈fr〉Helicobacter pylori〈/fr〉 infection (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 17 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aim : To test the efficacy of rabeprazole, levofloxacin and rifabutin triple therapy vs. quadruple therapy for the second-line treatment of Helicobacter pylori infection.Methods : One hundred and nine patients who had failed previous H. pylori eradication were randomized to receive: (i) rabeprazole, 20 mg b.d., rifabutin, 300 mg once daily, and levofloxacin, 500 mg once daily, for 7 days (triple therapy); or (ii) rabeprazole, 20 mg b.d., metronidazole, 400 mg t.d.s., bismuth subcitrate, 120 mg q.d.s., and tetracycline, 500 mg q.d.s., for 7 days (quadruple therapy). Endoscopy and culture were performed before treatment.Results : The clarithromycin (79% vs. 21%, P 〈 0.001) and metronidazole (89% vs. 40%, P 〈 0.001) resistance rates were significantly higher in patients with previous exposure than in those with no previous exposure. The intention-to-treat and per protocol eradication rates were 91%/91% for the triple therapy group and 91%/92% for the quadruple therapy group. For patients with double resistance to metronidazole and clarithromycin, the eradication rates were 85% (17/20) in the triple therapy group and 87% (13/15) in the quadruple therapy group. Compliance was greater than 95% for both regimens.Conclusion : Rabeprazole, levofloxacin and rifabutin-based triple therapy and quadruple therapy were equally effective as second-line treatments for H. pylori infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01459.x
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  • 2
    Electronic Resource
    Electronic Resource
    Three-day lansoprazole quadruple therapy for Helicobacter pylori-positive duodenal ulcers: a randomized controlled study (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: To compare the efficacy and tolerability of a 3-day quadruple therapy with a standard 7-day triple therapy in eradicating Helicobacter pylori infection and healing duodenal ulcers.〈section xml:id="abs1-2"〉〈title type="main"〉Methods:Patients with H. pylori-positive duodenal ulcers were randomized to receive either lansoprazole 30 mg, clarithromycin 500 mg, and metronidazole 400 mg twice daily for 7 days (LCM-7) or lansoprazole 30 mg, clarithromycin 500 mg, metronidazole 400 mg, and bismuth subcitrate 240 mg twice daily for 3 days (LCMB-3). No pre- or post-treatment acid suppression was used. Follow-up endoscopy was performed at week 6.〈section xml:id="abs1-3"〉〈title type="main"〉Results:A total of 118 patients were recruited. Sixty patients in the LCM-7 group and 53 patients in the LCMB-3 group returned for endoscopy. Intention-to-treat eradication rates were 87% and 86% (P=0.94) and per protocol eradication rates were 87% and 94% (P=0.29) in the LCM-7 and LCMB-3 groups, respectively. Per protocol and intention-to-treat ulcer healing rates were 98% and 98% in LCM-7 and 100% and 91% in LCMB-3, respectively. There were no significant differences in efficacy in relation to the initial metronidazole and clarithromycin susceptibility. Significant reduction in the duration of side-effects was found in the LCMB-3 group.〈section xml:id="abs1-4"〉〈title type="main"〉Conclusion:The 3-day quadruple therapy is highly effective, better tolerated and can be considered as a first-line therapy in duodenal ulcer management.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.00999.x
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  • 3
    Electronic Resource
    Electronic Resource
    An evaluation of invasive and non-invasive tests for the diagnosis of Helicobacter pylori infection in Chinese (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Different tests are available for diagnosing Helicobacter pylori infection.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To compare the most commonly used tests either alone or in combination in Chinese patients with respect to routine clinical use or research purpose.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:A total of 294 consecutive dyspeptic patients without previous H. pylori treatment were recruited. During upper endoscopy, biopsies were taken from the antrum and corpus, for a commercially available CLO-test, an in-house rapid urease test, culture, polymerase chain reaction and histological examination. Patients then received a 13C-urea breath test. The H. pylori status of each patient was determined by a concordance of test results.〈section xml:id="abs1-4"〉〈title type="main"〉Results:For routine clinical use, histology (antral plus corpus biopsies) had an accuracy of 100%, whilst the rapid urease test had an accuracy of 99.7%. The 13C-urea breath test was equally reliable, with an accuracy of 94.5%. Combinations of two tests did not confer additional advantage over the most accurate single test. For research purposes, the accuracy of using the criteria of two positives out of three diagnostic tests was 100% and equivocal results were not found.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusion:Histology with or without a rapid urease test was highly accurate for routine clinical use. Alternatively, the 13C-urea breath test was an equally reliable non-invasive test. The two positives out of three tests approach was highly reliable in predicting H. pylori status of untreated Chinese patients in a research setting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.00947.x
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  • 4
    Electronic Resource
    Electronic Resource
    Rabeprazole-based 3-day and 7-day triple therapy vs. omeprazole-based 7-day triple therapy for the treatment of Helicobacter pylori infection (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Rabeprazole is a new proton pump inhibitor with more potent acid suppressive and anti-Helicobacter effects.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To compare two different regimens of rabeprazole-based triple therapy vs. 7-day omeprazole-based triple therapy for the eradication of Helicobacter pylori infection.〈section xml:id="abs1-3"〉〈title type="main"〉Method:Patients with proven H. pylori infection were randomized to receive: (i) 7-day rabeprazole, 10 mg, amoxicillin, 1000 mg, and clarithromycin, 500 mg, all twice daily; (ii) 3-day rabeprazole, 20 mg, amoxicillin, 1000 mg, and clarithromycin, 500 mg, all twice daily; or (iii) 7-day omeprazole, 20 mg, amoxicillin, 1000 mg, and clarithromycin, 500 mg, all twice daily. Endoscopy (CLO test, histology) was performed before randomization and 6 weeks after drug treatment.〈section xml:id="abs1-4"〉〈title type="main"〉Results:One hundred and seventy-three patients were randomized. H. pylori eradication rates (intention-to-treat, n=173/per protocol, n=167) were 88%/91% for 7-day rabeprazole-based therapy, 72%/72% for 3-day rabeprazole-based therapy and 82%/89% for 7-day omeprazole-based therapy, respectively. The per protocol eradication rate was significantly better in the 7-day rabeprazole-based therapy and 7-day omeprazole-based therapy groups when compared to the 3-day rabeprazole-based therapy group (P=0.01 and P=0.04, respectively). Compliance was excellent and all three regimens were well tolerated.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:The efficacy of seven-day rabeprazole-based triple therapy is similar to 7-day omeprazole-based triple therapy for the eradication of H. pylori infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.01118.x
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  • 5
    Electronic Resource
    Electronic Resource
    A validated symptoms questionnaire (Chinese GERDQ) for the diagnosis of gastro-oesophageal reflux disease in the Chinese population (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 17 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background and aims: To develop a validated gastro-oesophageal disease (GERD) symptom questionnaire for the Chinese population.Methods: One hundred Chinese patients with GERD and 101 healthy Chinese controls were presented with a 20-item GERD questionnaire in the Chinese language (Chinese GERDQ). Quality of life in GERD patients was assessed by SF-36. A standard dose of proton pump inhibitors for 4 weeks was prescribed to 35 patients with newly diagnosed GERD. The Chinese GERDQ was performed before, 4 weeks and 8 weeks after treatment. Concept, content, construct, discriminant validity and reliability of the questionnaire were assessed.Results: Seven items were selected by logistic regression to account for most of the differences between controls and GERD patients with a good reproducibility and internal consistency. A cut-off score of equal or greater than 12 was determined to discriminate between controls and GERD patients with a sensitivity of 82% and a specificity of 84%. The Chinese GERDQ correlated negatively with five domains of the SF-36 and discriminated between GERD patients who reported symptomatic improvement during proton pump inhibitor treatment and symptoms deterioration upon withdrawal of proton pump inhibitor treatment.Conclusions: The Chinese GERDQ could be used in epidemiological studies to assess the frequency and severity of GERD in patient populations and in interventional studies of GERD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01576.x
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  • 6
    Electronic Resource
    Electronic Resource
    Upper gastrointestinal evaluation of Chinese patients with non-cardiac chest pain (2002)
    Oxford UK : Blackwell Science Ltd.
    Alimentary pharmacology & therapeutics 16 (2002), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: To test the usefulness of upper gastrointestinal investigations and quality of life assessment in Chinese patients with non-cardiac chest pain.〈section xml:id="abs1-2"〉〈title type="main"〉Methods:Seventy-eight consecutive patients with non-cardiac chest pain underwent upper endoscopy. Eight patients had upper gastrointestinal pathology (10%). The remaining 70 patients received acid perfusion test, oesophageal manometry and 24-h ambulatory oesophageal pH (n=65)/manometry (n=61), and the results were compared with those of healthy controls (n=20). Symptoms and quality of life (SF-36) were assessed by standard validated questionnaire.〈section xml:id="abs1-3"〉〈title type="main"〉Results:Significant acid reflux symptoms were present in five (5/70, 7%) patients. Abnormal 24-h oesophageal pH, indicating gastro-oesophageal reflux, was found in 19 (19/65, 29%) patients. The percentage of simultaneous contractions was higher and the percentage peristalsis was lower in patients with non-cardiac chest pain when compared with normal subjects by 24-h ambulatory manometry. Patients with non-cardiac chest pain had a lower SF-36 score when compared to controls.〈section xml:id="abs1-4"〉〈title type="main"〉Conclusions:Typical acid reflux symptoms are uncommon in Chinese patients with non-cardiac chest pain, but abnormal 24-h pH results, indicating gastro-oesophageal reflux, were found in 29% of patients. Ineffective contractions were more frequently found in patients with non-cardiac chest pain by 24-h ambulatory manometry, which may have a bearing on the impaired quality of life in such patients. Upper gastrointestinal investigations are useful for the evaluation of Chinese patients with non-cardiac chest pain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2002.01217.x
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  • 7
    Electronic Resource
    Electronic Resource
    One-week ranitidine bismuth citrate-based triple therapy for the eradication of Helicobacter pylori in Hong Kong with high prevalence of metronidazole resistance (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: To compare 1-week ranitidine bismuth citrate-based (RBC) triple therapy vs. omeprazole-based (O) triple therapy for the eradication of Helicobacter pylori infection in Hong Kong with high prevalence of metronidazole resistance.〈section xml:id="abs1-2"〉〈title type="main"〉Methods:Patients with non-ulcer dyspepsia and H. pylori infection were randomized to receive either: (i) RBCCM: ranitidine bismuth citrate (pylorid) 400 mg, clarithromycin 250 mg and metronidazole 400 mg; or (ii) OCM: omeprazole 20 mg, clarithromycin 250 mg and metronidazole 400 mg, each given twice daily for 1 week. Endoscopy (CLO test, histology and culture) and 13C-urea breath test were performed before randomization and 6 weeks after drug treatment.〈section xml:id="abs1-3"〉〈title type="main"〉Results:A total of 180 patients were randomized. H. pylori eradication rates (intention-to-treat, n=180/per protocol, n=166) were 83%/92% for RBCCM and 66%/70% for OCM (P=0.01, intention-to-treat and P=0.001, per protocol, respectively). RBCCM treatment was unaffected by metronidazole susceptibility and achieved a significantly higher eradication rate in metronidazole-resistant cases (89%) than the OCM group (45%, P=0.0064).〈section xml:id="abs1-4"〉〈title type="main"〉Conclusion:One-week ranitidine bismuth citrate-based triple therapy is significantly better than omeprazole-based triple therapy for the eradication of H. pylori infection, especially in metronidazole-resistant cases. It is an effective regimen for the eradication of H. pylori infection in regions with a high prevalence of metronidazole resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.00932.x
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  • 8
    Electronic Resource
    Electronic Resource
    Ulcer-healing drugs are required after eradication of Helicobacter pylori in patients with gastric ulcer but not duodenal ulcer haemorrhage (2000)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 14 (2000), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: To study the efficacy of a 2-week anti-Helicobacter therapy in the healing of H. pylori-associated bleeding peptic ulcers.〈section xml:id="abs1-2"〉〈title type="main"〉Methods:Omeprazole 20 mg, clarithromycin 500 mg and amoxycillin 1 g, twice daily, were given for 2 weeks to 180 patients with H. pylori-associated bleeding peptic ulcers. Endoscopy was repeated 4 weeks after the eradication therapy to assess healing of the peptic ulcers.〈section xml:id="abs1-3"〉〈title type="main"〉Results:Repeat endoscopies were performed in 168 patients (42 gastric ulcer and 126 duodenal ulcer) who followed the protocol. Thirty-eight patients with bleeding gastric ulcers and 124 patients with bleeding duodenal ulcers healed 4 weeks after treatment (per protocol analysis; gastric ulcer: 91% vs. duodenal ulcer: 98%; P=0.035). No patients who were compliant to the study medications suffered from re-bleeding. Stepwise discriminant analysis demonstrated that small ulcers (〈 15 mm) and the presence of duodenal ulcers best predicted healing of the peptic ulcers.〈section xml:id="abs1-4"〉〈title type="main"〉Conclusions:Ulcer-healing drugs should be continued after a 2-week course of omeprazole-containing anti-Helicobacter therapy for gastric ulcers and large peptic ulcers that have bled, but can be omitted in most patients with a bleeding duodenal ulcer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2000.00803.x
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  • 9
    Electronic Resource
    Electronic Resource
    Clinical and endoscopic characteristics of non-Helicobacter pylori, non-NSAID duodenal ulcers: a long-term prospective study (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The proportion of duodenal ulcers not associated with Helicobacter pylori infection or the use of non-steroidal anti-inflammatory drugs (NSAIDs) is increasing.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To identify the clinical and endoscopic characteristics of non-H. pylori, non-NSAID duodenal ulcers.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:Clinical and endoscopic data and H. pylori status were prospectively collected from consecutive patients who underwent upper endoscopy from 1997 to 1999. Patients with duodenal ulcers were identified, and those with non-H. pylori, non-NSAID duodenal ulcers were analysed further.〈section xml:id="abs1-4"〉〈title type="main"〉Results:A total of 11 717 upper endoscopies were performed in 8344 patients. Of these, 1153 (14%) had duodenal ulcers. Of 599 patients with active ulcers and known H. pylori status, 104 (17%) had ulcers not associated with H. pylori or the use of NSAIDs, 393 (66%) had ulcers associated with H. pylori alone, 51 (8.5%) had ulcers associated with the use of NSAIDs alone and 51 (8.5%) had ulcers associated with both. Multivariate logistic regression analysis revealed that the presence of concomitant diseases (odds ratio=15.0; 95% confidence interval, 8.64–25.9; P 〈 0.001) and the absence of epigastric pain/discomfort (odds ratio=0.52; 95% confidence interval, 0.29–0.91; P=0.022) were independent predictors for non-H. pylori, non-NSAID duodenal ulcers.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:Non-H. pylori, non-NSAID duodenal ulcers exhibit certain distinct clinical and endoscopic characteristics. The presence of concomitant diseases is an important predictive factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.01115.x
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  • 10
    Electronic Resource
    Electronic Resource
    A sensitive guaiac faecal occult blood test is less useful than an immunochemical test for colorectal cancer screening in a Chinese population (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 18 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : Colorectal cancer screening by guaiac faecal occult blood test has been shown to reduce the incidence and mortality of colorectal cancer in Western populations. The optimal faecal occult blood test, whether guaiac or immunochemical, for colorectal cancer screening in the Chinese population remains to be defined.Aim : To compare the performance characteristics of a sensitive guaiac-based faecal occult blood test (Hemoccult SENSA) and an immunochemical faecal occult blood test (FlexSure OBT) in a Chinese population referred for colonoscopy.Methods : One hundred and thirty-five consecutive patients who were referred for colonoscopy and who met the study inclusion criteria took samples for the two faecal occult blood tests simultaneously from three successive stool specimens, with no dietary restrictions. All tests were developed and interpreted by a single experienced technician who was blind to the clinical diagnosis. The sensitivity, specificity and positive predictive value for the detection of colorectal adenomas and cancers were estimated for the two tests.Results : The sensitivity, specificity and positive predictive value for the detection of significant colorectal neoplasia (adenomas ≥ 1.0 cm and cancers) were 91%, 70% and 18% for Hemoccult SENSA and 82%, 94% and 47% for FlexSure OBT. The specificity and positive predictive value were significantly higher for FlexSure OBT than for Hemoccult SENSA (P 〈 0.001 and P = 0.016, respectively). Combining the positive results from both faecal occult blood tests did not improve the accuracy.Conclusion : The positive predictive value of the immunochemical faecal occult blood test for the detection of significant colorectal neoplasia was 29% better than that of the sensitive guaiac-based test. This may relate to the Chinese diet and requires further study. The poor specificity of the sensitive guaiac-based test, without dietary restriction, makes it less useful for colorectal cancer screening in a Chinese population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01783.x
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