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346 records – page 1 of 35.

[10-12 years' clinical results in 300 initial patients undergoing aortocoronary bypass at the Montreal Cardiology Institute].

https://arctichealth.org/en/permalink/ahliterature242152
Source
Union Med Can. 1983 Mar;112(3):229-34
Publication Type
Article
Date
Mar-1983

Acute administration of a single dose of valsartan improves left ventricular functions: a pilot study to assess the role of tissue velocity echocardiography in patients with systemic arterial hypertension in the TVE-valsartan study I.

https://arctichealth.org/en/permalink/ahliterature80206
Source
Clin Physiol Funct Imaging. 2006 Nov;26(6):351-6
Publication Type
Article
Date
Nov-2006
Author
Govind Satish C
Brodin Lars-Ake
Nowak Jacek
Ramesh S S
Saha Samir K
Author Affiliation
BMJ Heart Center, Department of Non-invasive Cardiology, Bangalore, India.
Source
Clin Physiol Funct Imaging. 2006 Nov;26(6):351-6
Date
Nov-2006
Language
English
Publication Type
Article
Keywords
Adult
Aged
Antihypertensive Agents - administration & dosage
Blood Flow Velocity - drug effects
Blood Pressure - drug effects
Dose-Response Relationship, Drug
Echocardiography, Doppler, Color
Female
Heart Rate - drug effects
Humans
Hypertension - drug therapy - physiopathology - ultrasonography
Image Processing, Computer-Assisted
Male
Middle Aged
Myocardial Contraction - drug effects
Pilot Projects
Research Design
Stroke Volume - drug effects
Sweden
Tetrazoles - administration & dosage
Time Factors
Treatment Outcome
Valine - administration & dosage - analogs & derivatives
Ventricular Function, Left - drug effects
Abstract
BACKGROUND: The advent of colour-coded tissue velocity echocardiography (TVE) has now made it possible to quantify left ventricular (LV) functions in patients with systemic arterial hypertension (HTN). Hypothesis In this project, we have studied the cardiac effects of a single dose of orally administered valsartan in patients with known HTN. METHODS: Fifty-five patients with HTN with a mean age of 56 +/- 10 years were given an early morning dose of 80 mg valsartan withholding regular antihypertensive medications on the day of investigation. TVE images, acquired on VIVID systems were digitized for postprocessing of longitudinal and radial peak systolic velocities, strain rate, and systolic and diastolic time intervals before (pre) and 5 h after (post) administration of the drug. RESULTS: Blood pressure (mmHg) pre and post, respectively, were 147 +/- 15 versus 137 +/- 14 systolic and 90 +/- 7 versus 86 +/- 7 diastolic (all P
PubMed ID
17042901 View in PubMed
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The acute dose-related effects of ethanol on right ventricular function in anesthetized dogs.

https://arctichealth.org/en/permalink/ahliterature11893
Source
Alcohol. 1992 Mar-Apr;9(2):149-53
Publication Type
Article
Author
R. Kettunen
J. Timisjärvi
P. Saukko
Author Affiliation
Department of Physiology, University of Oulu, Finland.
Source
Alcohol. 1992 Mar-Apr;9(2):149-53
Language
English
Publication Type
Article
Keywords
Animals
Blood Pressure - drug effects
Cardiac Output - drug effects
Dogs
Dose-Response Relationship, Drug
Ethanol - administration & dosage - blood - pharmacology
Heart Rate - drug effects
Pulmonary Artery - physiology
Research Support, Non-U.S. Gov't
Stroke Volume - drug effects
Vascular Resistance - drug effects
Ventricular Function, Right - drug effects
Abstract
The acute dose-related effects of small to moderate doses of ethanol on right ventricular functioning were studied on 18 anesthetized, artificially ventilated dogs in 39 sessions. Diluted ethanol (from 25-37.5%) was infused during 40 minutes, yielding total doses of 1.0 g/kg (n = 15), and 1.5 g/kg (n = 12) with corresponding venous blood ethanol peak concentrations of 1.38 +/- 0.25 and 2.41 +/- 0.31 mg/ml, respectively. Heart rate increased up to 16% in groups receiving ethanol. In the control group receiving the equivalent volume of saline (n = 12) heart rate decreased 14%. Pulmonary arterial systolic pressure increased from 24 +/- 3 to 27 +/- 3 mmHg and diastolic pressure from 11 +/- 2 to 14 +/- 4 mmHg (p less than 0.05) when the ethanol dose was 1.0 g/kg. The pulmonary arterial resistance increased from 620 +/- 135 to 805 +/- 185 dyn.s.cm-5 (p less than 0.01). The peak dP/dt decreased maximally by 20% with increasing ethanol doses. Stroke volume decreased maximally by 14% but due to the increase in heart rate, cardiac output even increased. The changes in end-diastolic volume and pressure were not significant. Hence, the ethanol increased heart rate and afterload of the right ventricle but depressed the myocardium.
PubMed ID
1599626 View in PubMed
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Acute effects on the ventricular function in Swedish snuffers: an echocardiographic study.

https://arctichealth.org/en/permalink/ahliterature127427
Source
Clin Physiol Funct Imaging. 2012 Mar;32(2):106-13
Publication Type
Article
Date
Mar-2012
Author
D. Sundström
M. Waldenborg
K. Emilsson
Author Affiliation
Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden. daniel.sundstrom@orebroll.se
Source
Clin Physiol Funct Imaging. 2012 Mar;32(2):106-13
Date
Mar-2012
Language
English
Publication Type
Article
Keywords
Adult
Analysis of Variance
Blood pressure
Diastole
Echocardiography, Doppler
Echocardiography, Doppler, Color
Echocardiography, Doppler, Pulsed
Female
Heart rate
Humans
Male
Middle Aged
Predictive value of tests
Stroke Volume
Sweden
Systole
Time Factors
Tobacco, Smokeless - adverse effects
Ventricular Dysfunction, Left - etiology - physiopathology - ultrasonography
Ventricular Dysfunction, Right - etiology - physiopathology - ultrasonography
Ventricular Function, Left
Ventricular Function, Right
Young Adult
Abstract
Cigarettes and Swedish snuff contain nicotine, which influence the cardiovascular system. Cigarette smoke has been shown to give an acute impairment in diastolic heart parameters. The systolic and diastolic heart function in snuff users is not thoroughly enough investigated. The aim of this study was to investigate if Swedish snuff will give an acute decrease in systolic and diastolic heart parameters in the left and right ventricles in healthy Swedish snuffers.
Thirty healthy volunteers were examined with echocardiography. The study involved recordings from four different times: before snuff intake, 5 and 30 min after intake and finally 30 min after snuff withdrawal. The systolic and diastolic heart parameters were collected with conventional echocardiographic methods. In addition, the heart frequency and blood pressure response were measured. The pulse and blood pressure response were significantly altered (P
PubMed ID
22296630 View in PubMed
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Acute intravenous and long-term oral hemodynamic effects of encainide.

https://arctichealth.org/en/permalink/ahliterature55611
Source
Am J Cardiol. 1986 Aug 29;58(5):25C-30C
Publication Type
Article
Date
Aug-29-1986
Author
M H Sami
Source
Am J Cardiol. 1986 Aug 29;58(5):25C-30C
Date
Aug-29-1986
Language
English
Publication Type
Article
Keywords
Administration, Oral
Adult
Aged
Anilides - administration & dosage - therapeutic use
Anti-Arrhythmia Agents - administration & dosage - therapeutic use
Arrhythmia - drug therapy
Blood Pressure - drug effects
Encainide
Female
Heart Rate - drug effects
Heart Ventricles
Hemodynamic Processes - drug effects
Humans
Injections, Intravenous
Male
Middle Aged
Stroke Volume - drug effects
Time Factors
Abstract
The short- and long-term hemodynamic effects of encainide, a new class IC antiarrhythmic agent, were studied in 25 patients (mean age 61 +/- 11) with complex symptomatic ventricular arrhythmia and left ventricular dysfunction. Ninety-two percent had previous myocardial infarction and 8% had dilated cardiomyopathy. Seventy-five percent had congestive heart failure, class III or IV, according to the New York Heart Association. All patients underwent a nuclear ventriculogram performed at least 3 days after discontinuing previous antiarrhythmic drugs. Nuclear ventriculograms were repeated 1 to 6 weeks later while the patients were receiving therapeutic doses of encainide ranging from 75 to 300 [corrected] mg/day. Nuclear ventriculograms were also repeated after 6 months or 1 year of encainide therapy in 16 of these patients. Encainide did not have significant effects on heart rate, blood pressure, left ventricular ejection fraction, systolic or end-diastolic volumes. None of the patients showed a worsening of congestive heart failure during encainide therapy. These results compare favorably with those of other class I antiarrhythmic agents. A review of published reports on the hemodynamic effects of intravenous encainide shows it to have a mild but statistically significant dose-related depressant effect on cardiac function. This effect, however, appears to be no different from that of other newer class I agents.
Notes
Erratum In: Am J Cardiol 1988 Nov 15;62(16):1152
PubMed ID
3092616 View in PubMed
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Adherence and perception of medication in patients with chronic heart failure during a five-year randomised trial.

https://arctichealth.org/en/permalink/ahliterature83288
Source
Patient Educ Couns. 2006 Jun;61(3):348-53
Publication Type
Article
Date
Jun-2006
Author
Ekman Inger
Andersson Gull
Boman Kurt
Charlesworth Andrew
Cleland John G F
Poole-Wilson Philip
Swedberg Karl
Author Affiliation
The Sahlgrenska Academy, Faculty of Health and Caring Sciences, Institute of Nursing, Göteborg University, Box 457, SE 405 30, Göteborg, Sweden. inger.ekman@fhs.gu.se
Source
Patient Educ Couns. 2006 Jun;61(3):348-53
Date
Jun-2006
Language
English
Publication Type
Article
Keywords
Activities of Daily Living
Adrenergic beta-Antagonists - therapeutic use
Aged
Aged, 80 and over
Analysis of Variance
Carbazoles - therapeutic use
Chi-Square Distribution
Chronic Disease
Female
Follow-Up Studies
Health Knowledge, Attitudes, Practice
Health status
Heart Failure, Congestive - drug therapy - psychology
Humans
Male
Metoprolol - therapeutic use
Multicenter Studies
Patient Compliance - psychology - statistics & numerical data
Patient Education
Propanolamines - therapeutic use
Questionnaires
Randomized Controlled Trials
Severity of Illness Index
Stroke Volume
Sweden
Time Factors
Abstract
OBJECTIVE: Many patients with chronic heart failure (CHF) are thought to be non-adherent to their prescribed medications. The objective was to describe perceptions about and adherence to regular medicines and study medication at baseline and study end in CHF patients participating in a clinical trial. METHODS: In the carvedilol or metoprolol European trial (COMET), patients (N = 3029) with CHF were randomised and followed during a 58-month period. Patients at some Swedish centres answered a questionnaire at baseline and study end concerning their perception of their regular heart medication and study medication. Adherence was established through estimation of drug usage. RESULTS: In the Swedish sub-study, 302 patients responded once to the questionnaire while 107 patients responded both at baseline and at follow-up. At baseline, 94% of the patients stated that they believed that the study medication would make them feel better and 82% believed that their regular heart medication would do so. During the study, patients' belief in their regular cardiac medication significantly increased. Lack of belief in medication at the start of the study was a strong predictor of withdrawal from the trial (64% versus 6.8%; p
PubMed ID
16139468 View in PubMed
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Advanced age, low left atrial appendage velocity, and factor V promoter sequence variation as predictors of left atrial thrombosis in patients with nonvalvular atrial fibrillation.

https://arctichealth.org/en/permalink/ahliterature146014
Source
J Thromb Thrombolysis. 2010 Aug;30(2):192-9
Publication Type
Article
Date
Aug-2010
Author
Dmitry A Zateyshchikov
Alexey N Brovkin
Dimitry A Chistiakov
Valery V Nosikov
Author Affiliation
Scientific-Educational Medical Center of the Department of General Management of Russian President, Moscow, Russia.
Source
J Thromb Thrombolysis. 2010 Aug;30(2):192-9
Date
Aug-2010
Language
English
Publication Type
Article
Keywords
Age Factors
Aged
Atrial Appendage - physiopathology - ultrasonography
Atrial Fibrillation - complications - physiopathology - ultrasonography
Atrial Function, Left
Chi-Square Distribution
Cross-Sectional Studies
Echocardiography, Transesophageal
Factor V - genetics
Female
Genetic Predisposition to Disease
Humans
Logistic Models
Male
Middle Aged
Odds Ratio
Polymerase Chain Reaction
Polymorphism, Genetic
Polymorphism, Restriction Fragment Length
Promoter Regions, Genetic
Risk assessment
Risk factors
Russia
Stroke Volume
Thrombosis - etiology - genetics - physiopathology
Ventricular Function, Left
Abstract
Atrial fibrillation (AF) renders individual patients at risk for development of an atrial thrombus. The aim of this study was to determine clinical and echocardiographic factors influencing the risk of left atrial thrombosis (LAT) in patients with persistent nonvalvular AF. Genetic variants encoding haemostatic factors have been also assessed for putative association with LAT. In the cross-sectional study, a total of 212 patients (132 males and 80 females) with nonvalvular persistent AF (duration range 48 h-90 days) have been selected. LAT was visualized by transesophageal echocardiography. The FGB G(-455)A, PAI-1 4G/5G, F5 C(-224)T, and F5 R506Q genetic markers were tested using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) approach. To reveal independent factors contributing to the thromboembolic risk in AF, a multivariate logistic model was applied. LA thrombi were found in 44 out of 212 subjects (21%). LAT was more frequently observed in patients at age >75 years (P 75 years, LVEF
PubMed ID
20082208 View in PubMed
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Aerobic interval training compensates age related decline in cardiac function.

https://arctichealth.org/en/permalink/ahliterature127653
Source
Scand Cardiovasc J. 2012 Jun;46(3):163-71
Publication Type
Article
Date
Jun-2012
Author
Harald Edvard Molmen
Ulrik Wisloff
Inger Lise Aamot
Asbjorn Stoylen
Charlotte Bjork Ingul
Author Affiliation
Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway. haraldedvard@gmail.com
Source
Scand Cardiovasc J. 2012 Jun;46(3):163-71
Date
Jun-2012
Language
English
Publication Type
Article
Keywords
Adult
Age Factors
Aged
Aged, 80 and over
Aging
Analysis of Variance
Blood pressure
Cross-Sectional Studies
Echocardiography, Doppler
Exercise
Exercise Test
Female
Heart Diseases - physiopathology - prevention & control - ultrasonography
Heart rate
Humans
Male
Middle Aged
Myocardial Contraction
Norway
Oxygen consumption
Predictive value of tests
Prospective Studies
Sedentary lifestyle
Stroke Volume
Time Factors
Ventricular Function, Left
Ventricular Function, Right
Young Adult
Abstract
To study the effect of aerobic interval training (AIT) on myocardial function in sedentary seniors compared to master athletes (MA) and young controls.
Sixteen seniors (72 ± 1 years, 10 men) performed AIT (4 × 4 minutes) at ˜ 90% of maximal heart rate three times per week for 12 weeks. Results were compared with 11 male MA (74 ± 2 years) and 10 young males (23 ± 2 years).
Seniors had an impaired diastolic function compared to the young at rest. AIT improved resting diastolic parameters, increased E/A ratio (44%, p
PubMed ID
22273242 View in PubMed
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Age and gender specific normal values of left ventricular mass, volume and function for gradient echo magnetic resonance imaging: a cross sectional study.

https://arctichealth.org/en/permalink/ahliterature90338
Source
BMC Med Imaging. 2009;9:2
Publication Type
Article
Date
2009
Author
Cain Peter A
Ahl Ragnhild
Hedstrom Erik
Ugander Martin
Allansdotter-Johnsson Ase
Friberg Peter
Arheden Hakan
Author Affiliation
Department of Clinical Physiology, Lund University Hospital, SE-22185, Lund, Sweden. peteracain@gmail.com
Source
BMC Med Imaging. 2009;9:2
Date
2009
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Age Distribution
Aged
Aged, 80 and over
Child
Cross-Sectional Studies
Echo-Planar Imaging - statistics & numerical data
Female
Heart Ventricles - anatomy & histology
Humans
Male
Middle Aged
Organ Size - physiology
Reference Values
Reproducibility of Results
Sensitivity and specificity
Sex Distribution
Stroke Volume - physiology
Sweden - epidemiology
Ventricular Function, Left - physiology
Young Adult
Abstract
BACKGROUND: Knowledge about age-specific normal values for left ventricular mass (LVM), end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV) and ejection fraction (EF) by cardiac magnetic resonance imaging (CMR) is of importance to differentiate between health and disease and to assess the severity of disease. The aims of the study were to determine age and gender specific normal reference values and to explore the normal physiological variation of these parameters from adolescence to late adulthood, in a cross sectional study. METHODS: Gradient echo CMR was performed at 1.5 T in 96 healthy volunteers (11-81 years, 50 male). Gender-specific analysis of parameters was undertaken in both absolute values and adjusted for body surface area (BSA). RESULTS: Age and gender specific normal ranges for LV volumes, mass and function are presented from the second through the eighth decade of life. LVM, ESV and EDV rose during adolescence and declined in adulthood. SV and EF decreased with age. Compared to adult females, adult males had higher BSA-adjusted values of EDV (p = 0.006) and ESV (p
PubMed ID
19159437 View in PubMed
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[Age-related changes in the heart rate variability and hemodynamics shown by aboriginals in dependence on the leading type of vegetative nervous regulation].

https://arctichealth.org/en/permalink/ahliterature260915
Source
Ross Fiziol Zh Im I M Sechenova. 2014 May;100(5):634-47
Publication Type
Article
Date
May-2014
Author
A L Maksimov
A N Loskutova
Source
Ross Fiziol Zh Im I M Sechenova. 2014 May;100(5):634-47
Date
May-2014
Language
Russian
Publication Type
Article
Keywords
Adolescent
Age Factors
Blood Pressure - physiology
Cold Climate
Ethnic Groups
Female
Heart - physiology
Heart Rate - physiology
Hemodynamics - physiology
Humans
Male
Parasympathetic Nervous System - physiology
Russia
Stroke Volume - physiology
Sympathetic Nervous System - physiology
Abstract
We examined native minority adolescents (aborigines) to study somatometric and cardiohemodynamic characteristics in dependence on the leading type of vegetative nervous system. As result from the study, the age-related morphofunctional changes observed during the examined period of ontogenesis can be considered as heterochronic. Of note that, the hopping periods which occur in changes of somatometric and heart rate variability indices, can differ in dependence on the prevailing type of vegetative nervous system. Found that, the most number of reliable changes in vegetative nervous regulation is typical for vagotonic people at the age of 15, compared to the earlier ages. Apparently, this characterizes the conversion to decrease in activity of parasympathetic and increase in sympathetic component of vegetative regulation experienced by vagotonic examinees in the mentioned period. As regards normo- and sympathotonic examinees, no pronounced age-related change was found at the age of 13-17.
PubMed ID
25669102 View in PubMed
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346 records – page 1 of 35.