Search results for "Beta blocker"
showing 10 items of 12 documents
The influence of penbutolol and placebo on blood sugar levels and insulin consumption in the glucose-controlled insulin infusion system ("artificial …
1990
The aim of the study was to investigate the influence of 40 mg of the beta-blocker penbutolol (Betapressin TM; Hoechst Ltd., Frankfurt/Main) in comparison to placebo on the insulin consumption on the blood sugar profile in twelve insulin-dependent diabetes (IDDM) patients. The patients were treated with penbutolol and placebo for a period of three days, and then were examined with the help of the glucose-controlled insulin infusion system. The blood sugar profile and insulin consumption over a 24 hour period was not affected by either penbutolol or placebo, nor could any changes be measured in these parameters when measured after food intake. After a submaximal exercise load on the bicycle …
Cardiovascular medication and intraocular pressure: results from the Gutenberg Health Study
2016
BACKGROUND Intraocular pressure (IOP) is well known to be associated with blood pressure and other cardiovascular risk factors. The influence of systemic cardiovascular, in particular antihypertensive, medication on IOP is still controversial. This study analyses the association between the use of cardiovascular medications and IOP in a large European cohort. METHODS The Gutenberg Health Study is a population-based, prospective,observational cohort study in mid-western Germany. IOP was measured using a non-contact tonometer. The medication classes examined were peripheral vasodilators, diuretics, β-blockers (overall, selective and non-selective), calcium channel blockers, renin-angiotensin …
Transmural myocardial ischaemia complicating recovery after dobutamine-atropine stress echocardiography in patients with non-significant coronary art…
2011
In the proposed selection of cases, traditional imaging is integrated with contemporary diagnostic tools available in the cath-lab to navigate the potential mechanisms underlying a very rare complication occurring in the recovery phase of dobutamine-atropine stress echocardiography. The data, collected in a time frame of nearly 15 years, provide interesting elements to possibly evolve from speculative considerations to plausible confirmation of the candidate pathophysiological mechanism mediating the occurrence of transmural myocardial ischaemia after beta-blockers administration.
Heart rate control with oral ivabradine in computed tomography coronary angiography: a randomized comparison of 7.5 mg vs 5 mg regimen.
2013
Background: Heart rate (HR) reduction is essential to achieve optimal image quality and diagnostic accuracy with computed tomography coronary angiography (CTCA). Administration of oral ivabradine seems to be more effective than beta-blockade in reducing HR in patients referred for CTCA. Methods: Two-hundred-fifty-nine consecutive patients referred for CTCA were prospectively enrolled. Patients not receiving beta-blocker at baseline (group 1) and those with beta-blocker therapy (group 2) were enrolled in the study. Each group was randomized into 3 parallel arms with 1:1:1 allocation. Patients who did not receive beta-blocker at baseline: underwent CTCA without beta blocker (n=49), and receiv…
Multicentric study on the beta-blocker use and relation with exacerbations in COPD
2014
SummaryChronic obstructive pulmonary disease (COPD) is frequently associated with chronic heart failure (CHF) or coronary artery disease (CAD). In spite of the recommendation to use beta-blockers (BB) they are likely under-prescribed to patients with concurrent COPD and heart diseases. To find out the prevalence of use of BB, 256 COPD patients were consecutively recruited by pulmonary physicians from 14 hospitals in 7 regions of Spain in their outpatient offices if they had a diagnosis of COPD, were not on long-term oxygen therapy, had CHF or CAD, and met the criteria for BB treatment.In patients with indication 58% (95%CI, 52–64%) of the COPD patients and 97% of the non-COPD patients were …
A putative placebo analysis of the effects of LCZ696 on clinical outcomes in heart failure
2015
Aims: Although active-controlled trials with renin–angiotensin inhibitors are ethically mandated in heart failure with reduced ejection fraction, clinicians and regulators often want to know how the experimental therapy would perform compared with placebo. The angiotensin receptor-neprilysin inhibitor LCZ696 was compared with enalapril in PARADIGM-HF. We made indirect comparisons of the effects of LCZ696 with putative placebos.\ud \ud Methods and results: We used the treatment-arm of the Studies Of Left Ventricular Dysfunction (SOLVD-T) as the reference trial for comparison of an ACE inhibitor to placebo and the Candesartan in Heart failure: Assessment of Reduction in Mortality and morbidit…
β blockers and mortality after myocardial infarction in patients without heart failure: multicentre prospective cohort study.
2016
OBJECTIVE To assess the association between early and prolonged beta blocker treatment and mortality after acute myocardial infarction. DESIGN Multicentre prospective cohort study. SETTING Nationwide French registry of Acute ST- and non-STelevation Myocardial Infarction (FAST-MI) (at 223 centres) at the end of 2005. PARTICIPANTS 2679 consecutive patients with acute myocardial infarction and without heart failure or left ventricular dysfunction. MAIN OUTCOME MEASURES Mortality was assessed at 30 days in relation to early use of beta blockers (<= 48 hours of admission), at one year in relation to discharge prescription, and at five years in relation to one year use. RESULTS beta blockers were…
Efficacy of the long-acting nitro vasodilator pentaerithrityl tetranitrate in patients with chronic stable angina pectoris receiving anti-anginal bac…
2013
Background The organic nitrate pentaerithrityl tetranitrate (PETN) has been shown to have ancillary properties that prevent the development of tolerance and endothelial dysfunction. This randomized, double-blind, placebo-controlled, multicentre study (‘CLEOPATRA’ study) was designed to investigate the anti-ischaemic efficacy of PETN 80 mg b.i.d. (morning and mid-day) over placebo in patients with chronic stable angina pectoris. Methods and results A total of 655 patients were evaluated in the intention-to-treat population, randomized to PETN (80 mg b.i.d., n = 328) or placebo ( n = 327) and completed the study. Patients underwent treadmill exercise tests at randomization, after 6 and 12 wee…
Accumulation and Adverse Effects of Metoprolol and Propranolol After Concurrent Administration of Cimetidine
1983
Pharmacokinetics of metoprolol, propranolol and atenolol were investigated in six healthy volunteers following 7 days of oral monotherapy with these drugs and after 7 days concurrent administration of each of these betareceptor antagonists with cimetidine. Application of cimetidine did not lead to any interaction with atenolol, whereas mean peak plasma levels of metoprolol were increased by 70%, and those of propranolol by 95% due to concurrent administration of cimetidine (p < 0.05). The AUC of the two last mentioned beta blockers behaved similarly (p < 0.05). Measurement of exercise-induced tachycardia on the 6th day of administration showed no differences between monotherapy with the bet…
A 35-year effective treatment of catecholaminergic polymorphic ventricular tachycardia with propafenone
2018
Key Teaching Points • Despite proven catecholaminergic polymorphic ventricular tachycardia (CPVT) with pathogen RyR2 mutation and recurrent syncope, patients could have a favorable long-term outcome over 35 years under treatment. • Propafenone could be effective for treatment of patients with CPVT. • The beneficial effect of the monotherapy with propafenone in our patient may result from the combined antiarrhythmic effect of this drug with Na+ channel blockade and beta blocker capabilities.