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  • 2000-2004  (15)
  • 1975-1979  (6)
  • 1
    Digitale Medien
    Digitale Medien
    Synthesis, structure, and spectroscopic and magnetic properties of a new class of dimeric, fluoro-bridged high-spin cobalt(II) compounds containing substituted-pyrazole ligands (1978)
    s.l. : American Chemical Society
    Inorganic chemistry 17 (1978), S. 1990-1994 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic50185a060
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  • 2
    Digitale Medien
    Digitale Medien
    Proton-pump inhibitor therapy for acetylsalicylic acid associated upper gastrointestinal symptoms: a randomized placebo-controlled trial (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 18 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Objective : Patients using acetylsalicylic acid (aspirin) have an increased risk of upper gastrointestinal discomfort. The aim of this study was to assess whether gastric acid suppression improves upper gastrointestinal symptoms in patients using low-dose aspirin for cardiovascular disease.Methods : In a double-blind, placebo-controlled randomised trial, 150 patients using low-dose (80 mg) acetylsalicylic acid with upper gastrointestinal symptoms who had been admitted at the Coronary Care Unit of the University Medical Center Nijmegen were assigned to treatment with rabeprazole (20 mg once daily) or placebo for 4 weeks. Treatment success, defined as complete upper gastrointestinal symptom relief, could be evaluated in 143 patients.Results : At 4 weeks after randomization, 34 of the 73 patients assigned to rabeprazole therapy (47%) as compared with 30 of the 70 patients given placebo (43%) reported complete upper gastrointestinal symptom relief (P = 0.54). Rabeprazole therapy did lead to a 52% improvement of heartburn symptoms [25% vs. 16%; odds ratio (OR) 0.48, 95% confidence interval (CI): 0.24–0.97]. Epigastric pain, regurgitation, bloating and nausea symptoms did not statistically change after treatment. Patients with a history of dyspepsia more often reported treatment success in comparison to those without (75% vs. 40%; OR 0.25, 95% CI: 0.09–0.70).Conclusions : Proton-pump inhibitor therapy significantly reduced heartburn, but not other acetylsalicylic acid associated symptoms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01656.x
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  • 3
    Digitale Medien
    Digitale Medien
    Corpus gastritis in patients with endoscopic diagnosis of reflux oesophagitis and Barrett's oesophagus (2002)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 16 (2002), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: A high level of gastric acid secretion is considered to be a risk factor for reflux oesophagitis or Barrett's oesophagus. Corpus gastritis may have a protective effect on the oesophagus, because of decreased gastric acid output.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To determine if corpus gastritis is associated with reflux oesophagitis or Barrett's oesophagus.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:Three antral and two corpus biopsies were taken from consecutive patients in whom Helicobacter pylori testing was requested during endoscopy at a single centre between January 1995 and May 1997. Antral and corpus gastritis was studied by histology; H. pylori was studied by histology, culture and CLO test. A regression model was used to test for correlation between reflux oesophagitis, Barrett's oesophagus and risk factors.〈section xml:id="abs1-4"〉〈title type="main"〉Results:During the study period, 676 patients had biopsies taken during upper gastrointestinal endoscopy. Endoscopic signs of reflux oesophagitis and Barrett's oesophagus were observed in 125 and 23 patients, respectively. Corpus gastritis was found in 59% of patients without reflux oesophagitis or Barrett's oesophagus, 45% of patients with reflux oesophagitis and 30% of patients with Barrett's oesophagus. Two hundred and fifty-seven patients underwent follow-up endoscopy after H. pylori therapy. During a mean follow-up of 3 months, the incidence of reflux oesophagitis was not statistically different for patients with healing of corpus gastritis (10/98; 10%) and patients with persistent gastritis (8/97; 8%).〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:Corpus gastritis was less common in patients with an endoscopic diagnosis of reflux oesophagitis or Barrett's oesophagus.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2002.01245.x
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  • 4
    Digitale Medien
    Digitale Medien
    Review article: treatment of Helicobacter pylori infection with ranitidine bismuth citrate- or proton pump inhibitor-based triple therapies (2000)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 14 (2000), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Triple therapy, combining a proton pump inhibitor with clarithromycin (C) and either amoxycillin (A) or a nitro-imidazole (I) is the standard in Helicobacter pylori eradication therapy. Recently, triple therapies based on ranitidine bismuth citrate (RBC) have emerged as an alternative. This review examines the current literature for studies directly comparing proton pump inhibitor- with RBC-based triple therapies. Seventeen studies were identified, of which three have been published as a full paper.Eradication rates in an intention-to-treat analysis ranged from 51 to 98%. No large difference in cure rates between the different regimens was demonstrated, although the RBC-I-C combination was somewhat superior. No definite conclusions could be made about the impact of metronidazole or clarithromycin resistance since only three studies performed a formal resistance analysis. No serious side-effects were reported, and dropout rates were equal for the two regimens.Both RBC- and proton pump inhibitor-based triple therapies are highly effective. If one prefers a imidazole/clarithromycin combination the evidence presented here suggests that RBC should be used instead of a proton pump inhibitor. Larger studies comparing both forms of triple therapy, using proper resistance analysis, are needed before final conclusions can be reached regarding efficacy in the setting of bacterial resistance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2000.00798.x
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  • 5
    Digitale Medien
    Digitale Medien
    Health-related quality of life of patients with gastrointestinal symptoms (2004)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 20 (2004), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background : Little is known about the variation in health-related quality of life among patients with different presentations of gastrointestinal symptoms.Aim : To study the association between health-related quality of life and presentations of gastrointestinal symptoms.Methods : Health-related quality of life and demographic information was obtained from 873 patients referred to the hospital for endoscopy, using a questionnaire.Results : A total of 436 patients (50%) reported predominantly upper gastrointestinal symptoms, 344 (39%) predominantly lower symptoms, and 93 (11%) patients reported both upper and lower symptoms. Patients with mild, moderate and severe symptoms, reported mean scores on a 100-point visual analogue scale (95% CI) of 90 (79–100), 75 (64–86) and 64 (53–76), respectively (P 〈 0.001). Mean visual analogue scale scores (95% CI) almost linearly declined from 81 (77–85) to 49 (46–52) for those with one to those with more than eight symptoms. Patients who reported upper gastrointestinal symptoms and in particular epigastric pain, bloating and vomiting had significantly impaired health status in comparison to patients without these symptoms (P 〈 0.05).Conclusions : Severity of gastrointestinal symptoms is the most important factor in affecting health status, followed by the numbers and type of gastrointestinal symptoms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2036.2004.02076.x
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  • 6
    Digitale Medien
    Digitale Medien
    The impact of gastrointestinal symptoms on health status in patients with cardiovascular disease (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 17 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background : Drugs for the management of cardiovascular disease may provoke gastrointestinal discomfort and complications.Aim : To evaluate whether upper gastrointestinal symptoms affect the health status of patients with cardiovascular disease.Methods : Two weeks after discharge, 958 consecutive patients, who had been admitted to the Coronary Care Unit of the University Hospital Nijmegen between January and September 2001, were sent a questionnaire for the evaluation of gastrointestinal symptoms and health status.Results : The questionnaire was returned by 632 patients (66%), with 334 patients (53%) reporting gastrointestinal symptoms. The self-rated health status (mean and 95% confidence interval), evaluated by visual analogue scale, was 70 (68–72) for patients without and 61 (59–63) for patients with gastrointestinal symptoms (P = 0.001). Patients with gastrointestinal symptoms reported significantly higher rates of problems with mobility (50% vs. 37%), self-care (19% vs. 10%), usual activities (70% vs. 52%), pain/discomfort (96% vs. 38%) and anxiety/depression (41% vs. 20%) when compared with those without gastrointestinal symptoms.Conclusion : Upper gastrointestinal symptoms strongly impaired the health status of patients with cardiovascular disease.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01542.x
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  • 7
    Digitale Medien
    Digitale Medien
    A systematic comparison of triple therapies for treatment of Helicobacter pylori infection with proton pump inhibitor/ ranitidine bismuth citrate plus clarithromycin and either amoxicillin or a nitroimidazole (2001)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 15 (2001), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Triple therapies with proton pump inhibitor/ranitidine bismuth citrate (RBC), clarithromycin (C) and either amoxicillin (A) or a nitroimidazole (I) are widely accepted as treatment for Helicobacter pylori infection. However, it is not clear which of these antibiotic combinations should be preferred.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To evaluate whether there is a difference in efficacy between triple therapies with proton pump inhibitor/RBC, clarithromycin and either amoxicillin or a nitroimidazole.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:The literature was examined for randomized trials comparing proton pump inhibitor/RBC-C-A and proton pump inhibitor/RBC-C-I. Studies were grouped according to the type of acid inhibitor used (proton pump inhibitor or RBC) and differences between pooled cure rates were calculated.〈section xml:id="abs1-4"〉〈title type="main"〉Results:Forty-seven studies were identified: seven using RBC, 39 using proton pump inhibitor, one using both. RBC-C-I was somewhat superior to RBC-C-A, although this difference only reached statistical significance in intention-to-treat analysis. Overall, proton pump inhibitor-C-I and proton pump inhibitor-C-A were equally effective, but in nitroimidazole-susceptible strains, proton pump inhibitor-C-I performed better, in nitroimidazole-resistant strains, proton pump inhibitor-C-A performed better. No serious side-effects were reported and pooled drop-out rates were equal.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:In general, proton pump inhibitor-C-I and proton pump inhibitor-C-A are equally effective and therefore other factors such as local prevalence of resistant strains, cost of therapy and options for second-line treatment should determine which regimen should be preferred. When using RBC, the RBC-C-I combination is somewhat superior to RBC-C-A.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2001.00974.x
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  • 8
    Digitale Medien
    Digitale Medien
    Meta-analysis: the diagnostic value of alarm symptoms for upper gastrointestinal malignancy (2004)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 20 (2004), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background : With the advent of empirical treatment strategies for patients with dyspeptic symptoms, it becomes increasingly important to select patients with a high risk of having cancer for immediate endoscopy. Usually alarming symptoms are used for this matter, but their diagnostic value is by no means clear.Aim : To investigate the diagnostic value of alarm symptoms for upper gastrointestinal malignancy.Methods : Meta-analysis of studies describing prevalence of alarm symptoms in patients with and without endoscopically verified upper gastrointestinal malignancy were identified through a Medline search. The prevalence, pooled sensitivity, specificity, positive and negative predictive values were calculated.Results : About 17 case studies and nine cohort studies were selected. The mean prevalence of gastrointestinal malignancies in the cohort studies was 2.8% of 16 161 patients. Five cohort studies indicated that 25% of the patients diagnosed with upper gastrointestinal malignancy had no alarm symptoms. The pooled sensitivities of individual alarm symptoms varied from 9 to 41%, the pooled positive predictive value ranged from 4.6 to 7.9%, and was 5.9% for ‘having any alarm symptom’. The pooled negative predictive value was 99.4% for ‘having any alarm symptom’.Conclusion : The risk of upper gastrointestinal malignancy in any individual without alarm symptoms is very low, but approximately one in four patients with upper gastrointestinal cancer have no alarm symptoms at the time of diagnosis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2036.2004.02251.x
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  • 9
    Digitale Medien
    Digitale Medien
    Health-related quality of life in patients with cardiovascular disease – the effect of upper gastrointestinal symptom treatment (2004)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 19 (2004), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background : Upper gastrointestinal discomfort decreases the already impaired health status of patients with cardiovascular disease.Aim : To evaluate whether acid suppressive therapy improves health-related quality of life in patients who developed upper gastrointestinal symptoms after starting low-dose acetylsalicylic acid.Methods : In a double-blind, placebo-controlled randomized trail, cardiac patients using low-dose (80 mg) acetylsalicylic acid with (n = 142) and without (n = 90) upper gastrointestinal symptoms were included. Patients with symptoms were treated with rabeprazole or placebo for 4 weeks. At baseline and 4 weeks information about gastrointestinal symptoms and health-related quality of life was assessed.Results : The 73 patients assigned to rabeprazole when compared with 69 patients given placebo reported the same quality of life scores 4 weeks after randomization. The differences in quality of life scores between patients with and without symptoms at baseline remained after 4 weeks. Patients in whom treatment led to complete symptom relief or those who remained symptom-free reported significantly higher scores for Physical Component Summary (P 〈 0.01) and Mental Component Summary (P 〈 0.01), when compared to those with persistent symptoms or new onset symptoms.Conclusion : Proton-pump inhibitor therapy did not improve quality of life. Upper gastrointestinal symptom relief in itself considerably increased quality of life.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2036.2004.01937.x
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  • 10
    Digitale Medien
    Digitale Medien
    Gastric acid-suppressive therapy and community-acquired respiratory infections (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 18 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background : Bacteria and viruses have been detected in the stomach of patients during acid-suppressive therapy.Aim : To investigate whether subjects using acid-suppressive drugs more often develop community-acquired respiratory infections when compared to those who do not use acid-suppressive drugs.Methods : 700 study subjects were recruited during a single week in December 2002. Information on the prevalence of clinical manifestations of infections and complications in the preceding month was assessed by questionnaire. Furthermore, subjects were asked to report antibiotic therapy and physician visits related to possible infection.Results : Questionnaires were returned by 405 subjects (58%). Consumption of acid-suppressive drugs was reported by 91 individuals, of whom 79 used proton-pump inhibitors (20%) and 12 H2-receptor antagonists (3%). Overall, 101 (25%) responders reported clinical manifestations of respiratory infection in the preceding month. Subjects using acid-suppressive drugs were 2.34 times [95% confidence interval (CI) 1.4–4.1] more likely to have clinical manifestations of infection than individuals not using acid-suppressive drugs. Subjects using acid-suppressive drugs visited a physician 3.72 times more often (95% CI 2.1–6.8) for an infection and received antibiotic therapy 4.19 times more often (95% CI 2.2–8.1) in comparison to individuals not using acid-suppressive drugs.Conclusions : Subjects using acid-suppressive drugs more often reported community-acquired respiratory infections in comparison to those who did not use acid-suppressive drugs.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01744.x
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