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  • 1
    ISSN: 1573-2568
    Keywords: portal hypertensive gastropathy ; laser Doppler flowmetry ; propranolol ; gastrin ; pepsinogen I
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Gastric mucosal hyperemia associated with elevated serum gastrin level has been suggested in cirrhotic patients with portal hypertensive gastropathy (PHG). Clinical evidence has shown that these patients may benefit from propranolol administration. The aim of this study was to investigate effect of propranolol on gastric mucosal perfusion and serum gastrin level in cirrhotic patients with portal hypertensive gastropathy. Gastric mucosal perfusion was assessed by laser Doppler flowmetry. Measurements were performed under basal conditions and after observer-blind administration of propranolol (30–60 mg/day,N=9) or placebo (N=9) for seven days. Placebo had no effect on either gastric mucosal perfusion or serum gastrin level. In contrast, propranolol administration significantly decreased both antrum gastric mucosal perfusion (from 0.88±0.28 to 0.73±0.26 V,P〈0.05) and corpus gastric mucosal perfusion (from 0.94±0.35 to 0.78±0.25 V,P〈0.05). However, this drug had no effect on serum gastrin level. We conclude that chronic propranolol administration in cirrhotic patients with portal hypertensive gastropathy may reduce gastric mucosal perfusion without changing serum gastrin level.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of gastroenterology 29 (1994), S. 180-188 
    ISSN: 1435-5922
    Keywords: portal hypertension ; nitroglycerin ; portal hypertensive gastropathy ; gastric mucosal hemodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied 30 patients with cirrhosis to determine the effect of nitroglycerin on portal and gastric mucosal hemodynamics. Systemic hemodynamics, portal venous pressure (PVP), the hemoglobin index (IHB), and the oxygen saturation index (ISO2) of the gastric mucosa were measured before and after a continuous infusion of nitroglycerin. The patients were divided into two groups according to the presence or absence of major portal-systemic collateral routes on portograms. Nitroglycerin caused a reduction in PVP in all patients. Although there was no significant difference in systemic hemodynamic changes between the two groups, the reduction in PVP in patients with major portal-systemic collaterals was significantly higher than in those without major collaterals. A nitroglycerin infusion, at a dose of 1.0μg/kg per min for 10 min, produced a reduction in both IHB (−16%,P〈0.001) and ISO2 (−13%,P〈0.001) in the gastric mucosa, indicating gastric mucosal ischemia secondary to splanchnic vasoconstriction. These findings suggest that the continuous infusion of nitroglycerin reduces PVP in cirrhotic patients, particularly in those with major portal-systemic collaterals, and reduces the congestion of the gastric mucosa in patients with portal hypertension.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-5922
    Keywords: Key words: esophageal varices ; endoscopic injection variceal sclerotherapy ; endoscopic variceal ligation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: Endoscopic variceal ligation therapy (EVL) seems to be a more effective and safer method than endoscopic injection variceal sclerotherapy (EVS) for treating bleeding esophageal varices. However, EVL may entail a higher recurrence rate than EVS. The aim of this study was to examine whether EVL combined with low-dose EVS reduced the recurrence rate compared to treatment with EVL alone and reduced the complication rate compared to treatment with EVS alone. In this prospective study, 59 patients with cirrhosis and high-risk (F2 or F3, red color sign ++ or +++) esophageal varices were enrolled. They were randomly assigned to an EVS group (n = 18), an EVL group (n = 20), and a combination EVL plus low-dose EVS group (n = 21). After the eradication of varices, follow-up endoscopic examinations were carried out for 24 months to determine the recurrence of varices. Complications, e.g., severe dysphagia, fever, renal dysfunction and pleuritis were also evaluated. The recurrence-free rate was significantly lower in the EVL group (60% at 24 months) than in either the EVS group (90%, P 〈 0.05) or the combination group (88%, P 〈 0.05). However, no significant difference was found between the EVS group and the combination group. The complication rate was significantly higher in the EVS group (50%) than in either the EVL group (5%, P 〈 0.01) or the combination group (10%, P 〈 0.01). The combination therapy seems to be useful to improve the benefits achieved with EVL alone and to reduce the harmful effects induced by EVS alone. EVL plus low-volume EVS is advisable in the treatment of high-risk esophageal varices.
    Type of Medium: Electronic Resource
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