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  • 1
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The aim of this study was to compare the duodenal ulcer healing effects of morning (08.00 hours) vs. single bedtime (22.00 hours) doses of 40 mg famotidine, bearing in mind that the known efficacy of bedtime doses of H2–antagonists is regarded as evidence of the predominance of nocturnal gastric acidity in the pathogenesis of duodenal ulcer.This randomized double-blind multicentre trial was conducted in a total of 127 patients with endoscopically proven active duodenal ulcer. Nine patients dropped out and thus 118 were included in the final analysis. The duration of treatment was 4 weeks, and this was extended to 8 weeks in patients whose ulcers failed to heal by week 4. The patients in the two treatment groups were well matched for age and sex.The therapeutic efficacy parameters were endoscopic healing of the ulcer lesion and disappearance of pain. Results were compared using the χ-square method.The 4–and 8–week (cumulative) ulcer healing rates in the patients treated with the morning dose of famotidine were 77.2% and 86%, respectively, compared with 78.6% and 91.8% in those who received the bedtime dose. The differences failed to prove statistically significant either at week 4 (P= 0.85) or at week 8 (P= 0.31). The percentages of patients with ulcer pain, evaluated weekly, were similar in the two treatment groups.The equivalent efficacy of the morning and bedtime famotidine regimens raises doubts concerning the predominance of nocturnal gastric acidity in the pathogenesis of duodenal ulcer.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 7 (1993), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Some 10% of the population in Western countries will suffer a duodenal ulcer or gastric ulcer at some time in their lives. Although there has been an improvement in the, survival rate of patients with peptic ulcer haemorrhage, the mortality is still approximately 10%. There is evidence to suggest that peptic ulcer disease is a life-long condition and that ulcers remain active with an unchanged potential for complications such as haemorrhage and perforation. Over the past 15 years anti-ulcer drugs with different mechanisms of action have been developed, and their use results in complete healing of an ulcer in four to eight weeks. However, most patients experience recurrence of their peptic ulcer after discontinuation of the healing therapy. Studies of continuous H2-receptor antagonist therapy have shown that recurrence occurs less frequently than in untreated patients, is largely asymptomatic, and is rarely characterized by haemorrhagic complications. Limited data on therapy for the eradication of Helicobacter pylori suggest that this may be an alternative approach for selected patients. As protection afforded by H2-receptor antagonists remains undiminished over the course of several years and is also observed in ulcers which have bled in the past, the implementation of long-term management with these agents constitutes a rational policy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Experimental Cell Research 36 (1964), S. 215-227 
    ISSN: 0014-4827
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 334 (1973), S. 944-945 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über 97 Patienten berichtet, die wegen verschiedener Formen von chronischer Pankreatitis operiert wurden. Von diesen haben 66 eine simplere Operation an der Papilla Vateri, 31 größere Eingriffe (24 Pankreato-Jejunostomien, 9 demolitive Operationen) erfordert. Es wird über Operations-auswahl, intraoperatives Vorgehen und Ergebnisse berichtet.
    Notes: Summary We report on 97 patients operated on for different forms of chronic pancreatitis. Of these, 66 required a simple operation on the papilla of Vater, and 31 needed more serious interventions. We report on the selection of operation, the interoperative procedure and the results.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 19 (1986), S. 188-193 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The inhibitory effect of the novel H2 receptor antagonist famotidine was studied in conscious gastric fistula cats against dimaprit-induced hypersecretion, in comparison with ranitidine. On the secretory plateau induced by dimaprit (2 μmol kg−1 h−1) famotidine (0.05–0.2 μmol kg−1 i.v.) exerted a dose-dependent inhibitory effect, being approximately 4.5 times as potent as ranitidine (ID50 values were 0.067±0.015 and 0.30±0.025 μmol kg−1 for famotidine and ranitidine, respectively). No significant differences were found between the two drugs, as for the time-course of the inhibitory effect. Famotidine (0.01–0.32 μmol kg−1 h−1) caused a parallel displacement of the dose-response curve to dimaprit to the right, without reducing the maximum response to the stimulant, thus behaving as a competitive antagonist, like ranitidine. pA2 values for famotidine and ranitidine were 7.95 and 6.92, respectively. In the same range of doses famotidine dose-dependently reduced also the secretory response to histamine. From these data it was concluded that famotidine is a potent histamine H2 receptor antagonist in the cat gastric mucosa; moreover, conversely from “in vitro” data, the antagonism was surmountable even at the highest doses tested. In vivo experiment, therefore, did not reveal any particular feature of this compound, apart from the undoubtedly high potency, in comparison with other members of the family.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 20-year-old male patient on oral treatment with ranitidine 300 mg/day in a single bedtime dose was admitted to hospital for a brief episode of syncope which had occurred 20 min earlier. All clinical, laboratory and instrumental examinations yielded negative findings, except for electrocardiographic evidence of first-degree atrioventricular block. Administration of atropine produced transient disappearance of the block, which disappeared altogether after discontinuing ranitidine treatment. Two separate rechallenges with ranitidine each produced recurrence of (asymptomatic) first-degree atrioventricular block at electrocardiographic examination, but oral treatment with cimetidine (400–800 mg/day) and famotidine (40–80 mg/day) induced no electrocardiographic abnormalities. The hypothesis that this patient may be abnormally susceptible to the cholinergic or cholinergic-like effect of ranitidine, a side effect unrelated to the drug's primary H2-blocking action, would appear to be consistent with evidence of an increased vagal tone of the atrioventricular node as revealed by atrial pacing. However, the ability of ranitidine to release histamine in man and the potential dysrhythmia-inducing effect of histamine should also be taken into consideration.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 29 (1984), S. 896-901 
    ISSN: 1573-2568
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Although the association between acute pancreatitis and pleuropulmonary damage is well documented, so far no information on lung function in patients with chronic pancreatitis is available. In this study functional, radiological, and clinical investigations have been carried out in 42 patients affected by chronic calcific pancreatitis (CCP) and in 50 controls in a case-control study. An impairment of pulmonary diffusing capacity has been detected in CCP patients, while all the parameters of ventilatory function were not different from controls. This finding suggests the presence of early lung parenchymal damage in chronic pancreatitis secondary to either emphysema or pulmonary fibrosis.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-2568
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The present study has been designed to work out the factors regulating the fasting serum levels of trypsin-like immunoreactivity in chronic pancreatitis. One hundred patients with chronic pancreatitis have been included and studied during a painless phase of the disease. No relationships have been observed between serum trypsin-like immunoreactivity and the presence of pancreatic calcifications. Serum immunoreactive trypsin levels showed a gradual decline parallel to the progressive impairment of bicarbonate and enzyme (trypsin and chymotrypsin) outputs in duodenal aspirates during pancreatic secretory studies. Therefore, serum trypsin-like immunoreactivity levels are thought to reflect the functional capacity of the exocrine pancreas. Reduced levels of trypsin-like immunoreactivity were detected in almost all patients with diabetes and steatorrhea. However, the finding of low levels also in a minority of chronic pancreatitis patients with normal endoscopic retrograde cholangiopancreatography or pancreatic secretory tests points to other factors which, in addition to the atrophy of the pancreatic parenchyma, may influence the circulating levels of trypsin-like immunoreactivity in chronic pancreatitis.
    Type of Medium: Electronic Resource
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