Effect of Selective and Non-Selective β-Adrenoreceptor Blockade on Calf Blood Flow in Hypertensive Patients

1978 ◽  
Vol 55 (s4) ◽  
pp. 287s-290s ◽  
Author(s):  
D. L. Clement
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Blood Flow ◽  
Diastolic Blood Pressure ◽  
Dose Response ◽  
Sympathetic Stimulation ◽  
Response Curves ◽  
Hypertensive Patients ◽  
Calf Blood Flow ◽  
Before And After

1. Dose—response curves of isoprenaline were constructed in nine hypertensive patients before and after either propranolol or metoprolol. 2. The decrease of diastolic blood pressure and increase of heart rate with isoprenaline were significantly more inhibited by propranolol than by metoprolol. 3. The increase in calf blood flow with isoprenaline was significantly more depressed after propranolol than after metoprolol. 4. The results suggest that the response of the vessels in the limbs to sympathetic stimulation is much less affected after metoprolol than after propranolol.

Blood pressure, heart rate, and adrenal catecholamines prior to ventricular fibrillation

1961 ◽  
Vol 201 (1) ◽  
pp. 109-111 ◽  
Author(s):  
Noel M. Bass ◽  
Vincent V. Glaviano
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Blood Flow ◽  
Ventricular Fibrillation ◽  
Coronary Occlusion ◽  
Marked Decrease ◽  
Mean Blood Pressure ◽  
Plasma Adrenaline ◽  
Acute Coronary Occlusion ◽  
Before And After

Heart rate, mean blood pressure, adrenal blood flow, and adrenal plasma adrenaline and noradrenaline were compared before and after ligation of the anterior descending coronary artery in dogs anesthetized with chloralose. One group of 12 dogs responded to acute coronary occlusion with a sudden and marked decrease in mean blood pressure (mean, 31%) and heart rate (mean, 18%) followed by an early onset (mean, 227 sec) of ventricular fibrillation. Another group of nine dogs responded with slight decreases in mean blood pressure (mean, 13%) and heart rate (mean, 5%), during which time ventricular fibrillation occurred late (mean, 30 min) or not at all. While the two groups were statistically different in mean blood pressure and heart rate, the minute output of adrenal catecholamines in either group was not found to be related to the early or late occurrence of ventricular fibrillation.

scholarly journals PO-186 Effects of Shaolin Ba Duan Jin on Hypertensive Patients

2018 ◽  
Vol 1 (4) ◽  
Author(s):  
Xianfeng Hua
Keyword(s):  
Quality Of Life ◽  
Blood Pressure ◽  
Heart Rate ◽  
Martial Arts ◽  
Hypertensive Patients ◽  
Quality Of Life Scale ◽  
Before And After ◽  
Life Scale ◽  
Blood Pressures

Objective To investigate the effects of Shaolin Ba Duan Jin on patients with hypertension. Methods In the hypertensive patients detected in the national physical fitness test of public officials in Guiyang City, 40 patients with hypertension were selected. The experiment was started after Shaolin Ba Duan Jin has been practiced for seven days and the subjects had learned it. Experimental method: Frequency of subjects practicing Ba Duan Jin is 7 days a week, subjects practice once a day, practicing time is 6:00-7:30 am or 18:00 -19:30 pm, practicing lasts 1.5 hours each time (practicing has 3 groups, 14 minutes in each group；subjects rest 2 minutes between groups,；preparing part is 8 minutes；ending part is 5 minutes), record the blood pressure of the subjects before and after each experiment, and fill in the quality of life scale (WHOQOL-BREF scale) regularly for a period of 12 weeks. Questionnaire method: Fill in the quality of life scale every three weeks and measure heart rate and blood pressure before and after each exercise. Mathematical statistics: The paired sample t test was used to analyze the changes in blood pressure before and after the 12-week experiment. Results 1) The systolic and diastolic blood pressures of the subjects were significantly lower than before the experiment (P <0.01). 2) The WHOQOL-BREF scale after 12 weeks has improved significantly in all areas than before the experiment. Conclusions 1) Martial arts Ba Duan Jin has a good influence on the circulatory system of hypertensive patients. The performance is that the heart rate is slow and the systolic and diastolic blood pressures have a downward trend. 2) Martial arts Ba Duan Jin has significant improvement in the physiology, psychology, social relations, environment and other fields .

Renin and Aldosterone Release during Sympathetic Stimulation in Tetraplegia

1981 ◽  
Vol 60 (4) ◽  
pp. 399-404 ◽  
Author(s):  
C. J. Mathias ◽  
H. L. Frankel ◽  
I. B. Davies ◽  
V. H. T. James ◽  
W. S. Peart
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Plasma Renin Activity ◽  
Diastolic Blood Pressure ◽  
Pressor Response ◽  
Plasma Renin ◽  
Normal Subjects ◽  
Plasma Aldosterone ◽  
Renin Activity ◽  
Sympathetic Stimulation

1. The effect of endogenous sympathetic stimulation (induced by urinary bladder stimulation) and intravenous infusion of noradrenaline and isoprenaline on blood pressure, heart rate and levels of plasma renin activity and plasma aldosterone were studied in six tetraplegic patients. Data from infusion studies were compared with data from six normal subjects studied in an identical manner. 2. Bladder stimulation in the tetraplegic patients caused a marked rise in blood pressure and fall in heart rate, but no change in plasma renin activity or plasma aldosterone. 3. Noradrenaline infusion resulted in an enhanced pressor response in the tetraplegic patients when compared with the normal subjects. Heart rate fell in both groups. Plasma renin activity and plasma aldosterone did not change in either group. 4. Isoprenaline infusion caused a fall in both systolic and diastolic blood pressure in the tetraplegic patients, unlike the normal subjects in whom there was a rise in systolic and a fall in diastolic blood pressure. Heart rate and plasma renin activity rose in both groups. Plasma aldosterone did not change in either group. 5. We conclude that in tetraplegic patients neither endogenous sympathetic stimulation by bladder stimulation nor infusion of noradrenaline raises plasma renin activity. Isoprenaline increases plasma renin activity to the same extent as in normal subjects. Renin release mechanisms in tetraplegic patients therefore do not appear to be hypersensitive to catecholamines. Plasma aldosterone is not influenced by any of the stimuli.

scholarly journals Potensi Madu sebagai Penurun Tekanan Darah dan Kolestrol

2019 ◽  
Vol 10 ◽  
pp. 1-5
Author(s):  
Mitha Fransiska ◽  
Jaka Fadraersada ◽  
Fajar Prasetya
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Secondary Metabolites ◽  
Diastolic Blood Pressure ◽  
Research Method ◽  
Systolic Pressure ◽  
Reduce Blood Pressure ◽  
Hypertensive Patients ◽  
Chemical Substances ◽  
Cholesterol Levels

Hypertension is an increase in systolic and diastolic blood pressure more than 140/90 mmHg. Honey has the potential to reduce blood pressure because it has 200 chemical substances. This study aims to ford the effectiveness of giving honey to reduce blood pressure and cholesterol levels in hypertensive patients, as well as knowing the content of secondary metabolites found in honey. The research method used was semi quantitative with pre and post procedurs. Honey contains secondary metabolites of alkaloids, flavonoids, tannins, and saponins. The results of the analysis of honey give a significant decrease in systolic pressure, diastole, heart rate and cholesterol levels. Consumption honey regularly effectively reduces blood pressure in hypertensive patients.

scholarly journals The Effects of Diazepam Administration on Hemodynamic Variables in Hypertensive Patients Who Undergoing Cataract Surgery

2019 ◽  
Author(s):  
Mehdi Sanatkar ◽  
Mehrdad Shorooghi ◽  
Ensiyeh Shakarami ◽  
Mehdi Mokhlesiyan
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Oxygen Saturation ◽  
Cataract Surgery ◽  
Diastolic Blood Pressure ◽  
Conscious Sedation ◽  
Topical Anesthesia ◽  
Hypertensive Patients ◽  
Midazolam Group ◽  
Hemodynamic Variables

Background: The purpose of this study was the evaluation of diazepam administration on perioperative blood pressure in hypertensive patients who undergoing cataract surgery. Methods: Eighty controlled hypertensive patients who underwent cataract surgery under topical anesthesia and conscious sedation were enrolled in this study. All patients were randomly divided to two equal size group for administration of diazepam 0.05 mg/kg (n=40, diazepam group) and midazolam 0.01 mg/kg (n=40, midazolam group) in order to conscious sedation. The systolic and diastolic blood pressure, heart rate and oxygen saturation were recorded preoperatively as baseline value, and then 5, 10 and 15 minutes after diazepam or midazolam administration. Results: There were no difference between two groups in terms of systolic, diastolic and heart rate preoperatively. Systolic and diastolic blood pressure was decreased significantly more in diazepam group compared to midazolam group perioperatively. Heart rate did not change significantly in both groups. Oxygen saturation of blood was decreased in both groups but not statistically significant.  Systolic and diastolic blood pressure variability during each period intraoperatively was lower in diazepam group compared to another group. Systolic and diastolic blood pressure of patients during recovery room in diazepam group was lower than midazolam group. Conclusion: In hypertensive patients who undergoing cataract surgery with topical anesthesia, administration of diazepam in order to conscious sedation is an effective and safe method with less perioperatively side effects

The Effects of Relationship Aversive Female Partner Behavior on Attributions and Physiological Reactivity of Verbally Aggressive and Non-Aggressive Males

2003 ◽  
Vol 18 (1) ◽  
pp. 95-106 ◽  
Author(s):  
Todd M. Moore ◽  
Gregory L. Stuart ◽  
Richard M. Eisler ◽  
Joseph J. Franchina
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Diastolic Blood Pressure ◽  
Potential Interaction ◽  
Female Partner ◽  
Physiological Reactivity ◽  
College Males ◽  
Responsibility Attributions ◽  
Female Partners ◽  
Before And After

The present study assessed the effects of aversive female partner behavior on cognitive attributions and physiological reactivity in verbally aggressive and non-aggressive college males (N= 39). Participants were presented four audiotaped vignettes which depicted hypothetical dating situations in which the female’s behavior was relationship aversive or non-relationship aversive. Participants’ physiological reactivity (i.e., systolic blood pressure, diastolic blood pressure, and heart rate) was obtained before and after hearing each vignette. Attributional responses were obtained following the presentation of all vignettes. Relationship aversive partner behavior was expected to produce greater increases in attributional and physiological reactivity than non-relationship aversive partner behavior. Additionally, verbally aggressive males were expected to demonstrate greater negative intent and responsibility attributions and evidence greater physiological reactivity for situations involving relationship aversive partner behavior than were non-aggressive males. As hypothesized, results showed that relationship aversive partner behavior produced greater increases in systolic and diastolic blood pressure than did non-relationship aversive partner behavior. Results also showed that verbally aggressive males evidenced significantly greater negative attributions to relationship aversive partner behavior than did non-aggressive males. The potential interaction between physiological reactivity and attributions in explaining males’ verbally aggressive behavior toward their female partners is discussed.

scholarly journals Functional Ability of Cardiovascular System in Adolescents / Funkcionalna sposobnost kardiovaskularnog sistema kod adolescenata

2016 ◽  
Vol 10 (2) ◽  
Author(s):  
Goran Bošnjak ◽  
Vladimir Jakovljević ◽  
Gorana Tešanović ◽  
Velibor Srdić
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Heart Rate ◽  
Cardiovascular System ◽  
Diastolic Blood Pressure ◽  
Body Mass ◽  
Functional Capacity ◽  
Functional Ability ◽  
Physical Ability ◽  
Before And After

Testing function of cardiovascular system is measured, the most often, physical ability and functional capacity of transport system or its parts. Many studies have found an association with obesity by reducing functional capacity of cardiovascular system that is correlated with physical ability to work. This research was conducted in order to determine the functional ability of cardiovascular system in adolescents to assess need of their sports activities at this age. The sample consisted of 55 high school students, male, 16 years old (+/- 6 months). For this research, the body mass index is used as a criterion for forming groups of respondents. The functional capacity of cardiovascular system is observed through variables: systolic and diastolic blood pressure before and after load and heart rate before and after load after performing Astrand test of ergometar bicycle. Analysis of functional abilities cardiovascular respondents before and after load, it was noted that in respondents who had a higher body mass index, showed higher values of systolic and diastolic blood pressure before and after load, as well as higher values of heart rate before and after load. This study confirmed previous numerous studies, stating that increased body mass index leads to harmful effects on cardiovascular system.

Autonomic control of blood pressure and heart rate in obese hypertensive dogs

1996 ◽  
Vol 270 (3) ◽  
pp. R541-R549 ◽  
Author(s):  
A. A. Truett ◽  
A. T. Borne ◽  
M. A. Poincot ◽  
D. B. West
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Autonomic Control ◽  
Beta Agonist ◽  
Sympathetic Stimulation ◽  
Peripheral Vascular ◽  
High Fat ◽  
Sympathetic Control ◽  
Before And After ◽  
Alpha Agonist

Autonomic control of cardiovascular function was evaluated in nine dogs before and after a high-fat overfeeding regimen. Body weight increased significantly (from 19.8 +/- 0.9 to 29.5 +/- 2.1 kg; P < 0.01) with overfeeding. Mean arterial pressure (MAP) increased from 94.6 +/- 2.1 to 105.5 +/- 3.7 mmHg (P < 0.05), and heart rate (HR) increased from 94.8 +/- 3.5 to 112.3 +/- 5.6 beats/min (P < 0.01). After ganglionic blockade with chlorisondamine, dose response of MAP and HR to methoxamine (alpha-agonist) or isoproterenol (beta-agonist) was evaluated. Peak MAP response to methoxamine was blunted in obese dogs. HR response to isoproterenol was not different between lean and obese dogs. Atropine in the presence of propranolol increased HR from 80.8 +/- 7 to 202.8 +/- 8.9 beats/min in lean dogs and from 113.8 +/- 12.1 to 131.7 +/- 18.2 in obese dogs. These data suggest the increase in HR observed in obese dogs may be due to a decrease in parasympathetic inhibition rather than an increase in sympathetic stimulation. The blunted response to methoxamine in obese hypertensive dogs suggests that the sympathetic control of peripheral vascular resistance is altered in obesity.

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