Heart Rate: The number of times the HEART VENTRICLES contract per unit of time, usually per minute.Heart: The hollow, muscular organ that maintains the circulation of the blood.Heart Rate, Fetal: The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute.Heart Failure: A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.Autonomic Nervous System: The ENTERIC NERVOUS SYSTEM; PARASYMPATHETIC NERVOUS SYSTEM; and SYMPATHETIC NERVOUS SYSTEM taken together. Generally speaking, the autonomic nervous system regulates the internal environment during both peaceful activity and physical or emotional stress. Autonomic activity is controlled and integrated by the CENTRAL NERVOUS SYSTEM, especially the HYPOTHALAMUS and the SOLITARY NUCLEUS, which receive information relayed from VISCERAL AFFERENTS.Blood Pressure: PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.Heart Diseases: Pathological conditions involving the HEART including its structural and functional abnormalities.Heart Transplantation: The transference of a heart from one human or animal to another.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Fetal Heart: The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.Sympathetic Nervous System: The thoracolumbar division of the autonomic nervous system. Sympathetic preganglionic fibers originate in neurons of the intermediolateral column of the spinal cord and project to the paravertebral and prevertebral ganglia, which in turn project to target organs. The sympathetic nervous system mediates the body's response to stressful situations, i.e., the fight or flight reactions. It often acts reciprocally to the parasympathetic system.Electrocardiography, Ambulatory: Method in which prolonged electrocardiographic recordings are made on a portable tape recorder (Holter-type system) or solid-state device ("real-time" system), while the patient undergoes normal daily activities. It is useful in the diagnosis and management of intermittent cardiac arrhythmias and transient myocardial ischemia.Baroreflex: A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure.Heart Atria: The chambers of the heart, to which the BLOOD returns from the circulation.Electrocardiography: Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.Adrenergic beta-Antagonists: Drugs that bind to but do not activate beta-adrenergic receptors thereby blocking the actions of beta-adrenergic agonists. Adrenergic beta-antagonists are used for treatment of hypertension, cardiac arrhythmias, angina pectoris, glaucoma, migraine headaches, and anxiety.Heart Valves: Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.Exercise Test: Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.Myocardial Contraction: Contractile activity of the MYOCARDIUM.Heart Block: Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.Myocardium: The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Oxygen Consumption: The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)Heart Function Tests: Examinations used to diagnose and treat heart conditions.Parasympathetic Nervous System: The craniosacral division of the autonomic nervous system. The cell bodies of the parasympathetic preganglionic fibers are in brain stem nuclei and in the sacral spinal cord. They synapse in cranial autonomic ganglia or in terminal ganglia near target organs. The parasympathetic nervous system generally acts to conserve resources and restore homeostasis, often with effects reciprocal to the sympathetic nervous system.Telemetry: Transmission of the readings of instruments to a remote location by means of wires, radio waves, or other means. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Dogs: The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)Bradycardia: Cardiac arrhythmias that are characterized by excessively slow HEART RATE, usually below 50 beats per minute in human adults. They can be classified broadly into SINOATRIAL NODE dysfunction and ATRIOVENTRICULAR BLOCK.Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.Stroke Volume: The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.Respiration: The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Ventricular Function, Left: The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.Cardiovascular Physiological Phenomena: Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts.Tachycardia: Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.Physical Exertion: Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Exercise: Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.Cardiovascular System: The HEART and the BLOOD VESSELS by which BLOOD is pumped and circulated through the body.Atropine: An alkaloid, originally from Atropa belladonna, but found in other plants, mainly SOLANACEAE. Hyoscyamine is the 3(S)-endo isomer of atropine.Rest: Freedom from activity.Pressoreceptors: Receptors in the vascular system, particularly the aorta and carotid sinus, which are sensitive to stretch of the vessel walls.Propanolamines: AMINO ALCOHOLS containing the propanolamine (NH2CH2CHOHCH2) group and its derivatives.Cardiac Output: The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).Cardiotonic Agents: Agents that have a strengthening effect on the heart or that can increase cardiac output. They may be CARDIAC GLYCOSIDES; SYMPATHOMIMETICS; or other drugs. They are used after MYOCARDIAL INFARCT; CARDIAC SURGICAL PROCEDURES; in SHOCK; or in congestive heart failure (HEART FAILURE).Heart Arrest, Induced: A procedure to stop the contraction of MYOCARDIUM during HEART SURGERY. It is usually achieved with the use of chemicals (CARDIOPLEGIC SOLUTIONS) or cold temperature (such as chilled perfusate).Norepinephrine: Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.Sinoatrial Node: The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Reflex: An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.Autonomic Nervous System Diseases: Diseases of the parasympathetic or sympathetic divisions of the AUTONOMIC NERVOUS SYSTEM; which has components located in the CENTRAL NERVOUS SYSTEM and PERIPHERAL NERVOUS SYSTEM. Autonomic dysfunction may be associated with HYPOTHALAMIC DISEASES; BRAIN STEM disorders; SPINAL CORD DISEASES; and PERIPHERAL NERVOUS SYSTEM DISEASES. Manifestations include impairments of vegetative functions including the maintenance of BLOOD PRESSURE; HEART RATE; pupil function; SWEATING; REPRODUCTIVE AND URINARY PHYSIOLOGY; and DIGESTION.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).Myocytes, Cardiac: Striated muscle cells found in the heart. They are derived from cardiac myoblasts (MYOBLASTS, CARDIAC).Arrhythmia, Sinus: Irregular HEART RATE caused by abnormal function of the SINOATRIAL NODE. It is characterized by a greater than 10% change between the maximum and the minimum sinus cycle length or 120 milliseconds.Cardiac Output, Low: A state of subnormal or depressed cardiac output at rest or during stress. It is a characteristic of CARDIOVASCULAR DISEASES, including congenital, valvular, rheumatic, hypertensive, coronary, and cardiomyopathic. The serious form of low cardiac output is characterized by marked reduction in STROKE VOLUME, and systemic vasoconstriction resulting in cold, pale, and sometimes cyanotic extremities.Prospective Studies: Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.Cardiac Pacing, Artificial: Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.Posture: The position or attitude of the body.Metoprolol: A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.Isoproterenol: Isopropyl analog of EPINEPHRINE; beta-sympathomimetic that acts on the heart, bronchi, skeletal muscle, alimentary tract, etc. It is used mainly as bronchodilator and heart stimulant.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Supine Position: The posture of an individual lying face up.Models, Cardiovascular: Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.Double-Blind Method: A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.Dose-Response Relationship, Drug: The relationship between the dose of an administered drug and the response of the organism to the drug.Systole: Period of contraction of the HEART, especially of the HEART VENTRICLES.Signal Processing, Computer-Assisted: Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.Epinephrine: The active sympathomimetic hormone from the ADRENAL MEDULLA. It stimulates both the alpha- and beta- adrenergic systems, causes systemic VASOCONSTRICTION and gastrointestinal relaxation, stimulates the HEART, and dilates BRONCHI and cerebral vessels. It is used in ASTHMA and CARDIAC FAILURE and to delay absorption of local ANESTHETICS.Cardiomyopathy, Dilated: A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.Body Temperature: The measure of the level of heat of a human or animal.Rats, Sprague-Dawley: A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.Diastole: Post-systolic relaxation of the HEART, especially the HEART VENTRICLES.Ventricular Dysfunction, Left: A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.Reference Values: The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.Rats, Wistar: A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.Regional Blood Flow: The flow of BLOOD through or around an organ or region of the body.Arrhythmias, Cardiac: Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.Circadian Rhythm: The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.Tilt-Table Test: A standard and widely accepted diagnostic test used to identify patients who have a vasodepressive and/or cardioinhibitory response as a cause of syncope. (From Braunwald, Heart Disease, 7th ed)Atenolol: A cardioselective beta-1 adrenergic blocker possessing properties and potency similar to PROPRANOLOL, but without a negative inotropic effect.Hypotension: Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital organs. Common symptom is DIZZINESS but greater negative impacts on the body occur when there is prolonged depravation of oxygen and nutrients.Cardiomegaly: Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.Fetal Monitoring: Physiologic or biochemical monitoring of the fetus. It is usually done during LABOR, OBSTETRIC and may be performed in conjunction with the monitoring of uterine activity. It may also be performed prenatally as when the mother is undergoing surgery.Catecholamines: A general class of ortho-dihydroxyphenylalkylamines derived from tyrosine.Anti-Arrhythmia Agents: Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.Follow-Up Studies: Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.Phenylephrine: An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.Myocardial Reperfusion Injury: Damage to the MYOCARDIUM resulting from MYOCARDIAL REPERFUSION (restoration of blood flow to ischemic areas of the HEART.) Reperfusion takes place when there is spontaneous thrombolysis, THROMBOLYTIC THERAPY, collateral flow from other coronary vascular beds, or reversal of vasospasm.Anesthesia: A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.Cardiomyopathies: A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).Heart Failure, Systolic: Heart failure caused by abnormal myocardial contraction during SYSTOLE leading to defective cardiac emptying.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Cross-Over Studies: Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)Predictive Value of Tests: In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.Adrenergic beta-Agonists: Drugs that selectively bind to and activate beta-adrenergic receptors.Heart Arrest: Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.Monitoring, Physiologic: The continuous measurement of physiological processes, blood pressure, heart rate, renal output, reflexes, respiration, etc., in a patient or experimental animal; includes pharmacologic monitoring, the measurement of administered drugs or their metabolites in the blood, tissues, or urine.Hypertension: Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.Consciousness: Sense of awareness of self and of the environment.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Disease Models, Animal: Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Ventricular Remodeling: The geometric and structural changes that the HEART VENTRICLES undergo, usually following MYOCARDIAL INFARCTION. It comprises expansion of the infarct and dilatation of the healthy ventricle segments. While most prevalent in the left ventricle, it can also occur in the right ventricle.Heart, Artificial: A pumping mechanism that duplicates the output, rate, and blood pressure of the natural heart. It may replace the function of the entire heart or a portion of it, and may be an intracorporeal, extracorporeal, or paracorporeal heart. (Dorland, 28th ed)Perfusion: Treatment process involving the injection of fluid into an organ or tissue.Heart Septum: This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick muscular ventricular septum between the two HEART VENTRICLES.Valsalva Maneuver: Forced expiratory effort against a closed GLOTTIS.Chronic Disease: Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)Benzazepines: Compounds with BENZENE fused to AZEPINES.Diving: An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.Vasodilator Agents: Drugs used to cause dilation of the blood vessels.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Heart Injuries: General or unspecified injuries to the heart.Respiratory Rate: The number of times an organism breathes with the lungs (RESPIRATION) per unit time, usually per minute.Antihypertensive Agents: Drugs used in the treatment of acute or chronic vascular HYPERTENSION regardless of pharmacological mechanism. Among the antihypertensive agents are DIURETICS; (especially DIURETICS, THIAZIDE); ADRENERGIC BETA-ANTAGONISTS; ADRENERGIC ALPHA-ANTAGONISTS; ANGIOTENSIN-CONVERTING ENZYME INHIBITORS; CALCIUM CHANNEL BLOCKERS; GANGLIONIC BLOCKERS; and VASODILATOR AGENTS.Autonomic Nerve Block: Interruption of sympathetic pathways, by local injection of an anesthetic agent, at any of four levels: peripheral nerve block, sympathetic ganglion block, extradural block, and subarachnoid block.Rheumatic Heart Disease: Cardiac manifestation of systemic rheumatological conditions, such as RHEUMATIC FEVER. Rheumatic heart disease can involve any part the heart, most often the HEART VALVES and the ENDOCARDIUM.Cardiovascular Diseases: Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.Heart Valve Prosthesis: A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.Adrenergic beta-1 Receptor Antagonists: Drugs that bind to and block the activation of ADRENERGIC BETA-1 RECEPTORS.Energy Metabolism: The chemical reactions involved in the production and utilization of various forms of energy in cells.Rabbits: The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.Death, Sudden, Cardiac: Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)Pulse: The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts.Physical Endurance: The time span between the beginning of physical activity by an individual and the termination because of exhaustion.Anoxia: Relatively complete absence of oxygen in one or more tissues.Cardiotocography: Monitoring of FETAL HEART frequency before birth in order to assess impending prematurity in relation to the pattern or intensity of antepartum UTERINE CONTRACTION.Receptors, Adrenergic, beta: One of two major pharmacologically defined classes of adrenergic receptors. The beta adrenergic receptors play an important role in regulating CARDIAC MUSCLE contraction, SMOOTH MUSCLE relaxation, and GLYCOGENOLYSIS.Sympathomimetics: Drugs that mimic the effects of stimulating postganglionic adrenergic sympathetic nerves. Included here are drugs that directly stimulate adrenergic receptors and drugs that act indirectly by provoking the release of adrenergic transmitters.Sympatholytics: Drugs that inhibit the actions of the sympathetic nervous system by any mechanism. The most common of these are the ADRENERGIC ANTAGONISTS and drugs that deplete norepinephrine or reduce the release of transmitters from adrenergic postganglionic terminals (see ADRENERGIC AGENTS). Drugs that act in the central nervous system to reduce sympathetic activity (e.g., centrally acting alpha-2 adrenergic agonists, see ADRENERGIC ALPHA-AGONISTS) are included here.Prognosis: A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.Clonidine: An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION.Aging: The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.Age Factors: Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.Echocardiography, Doppler: Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.Heart Failure, Diastolic: Heart failure caused by abnormal myocardial relaxation during DIASTOLE leading to defective cardiac filling.Pacemaker, Artificial: A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).Body Weight: The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.American Heart Association: A voluntary organization concerned with the prevention and treatment of heart and vascular diseases.Rats, Inbred SHR: A strain of Rattus norvegicus with elevated blood pressure used as a model for studying hypertension and stroke.Natriuretic Peptide, Brain: A PEPTIDE that is secreted by the BRAIN and the HEART ATRIA, stored mainly in cardiac ventricular MYOCARDIUM. It can cause NATRIURESIS; DIURESIS; VASODILATION; and inhibits secretion of RENIN and ALDOSTERONE. It improves heart function. It contains 32 AMINO ACIDS.Cardiac Complexes, Premature: A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.Blood Circulation: The movement of the BLOOD as it is pumped through the CARDIOVASCULAR SYSTEM.Parasympatholytics: Agents that inhibit the actions of the parasympathetic nervous system. The major group of drugs used therapeutically for this purpose is the MUSCARINIC ANTAGONISTS.Respiratory Mechanics: The physical or mechanical action of the LUNGS; DIAPHRAGM; RIBS; and CHEST WALL during respiration. It includes airflow, lung volume, neural and reflex controls, mechanoreceptors, breathing patterns, etc.Reproducibility of Results: The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.Anesthesia, General: Procedure in which patients are induced into an unconscious state through use of various medications so that they do not feel pain during surgery.Ventricular Premature Complexes: A type of cardiac arrhythmia with premature contractions of the HEART VENTRICLES. It is characterized by the premature QRS complex on ECG that is of abnormal shape and great duration (generally >129 msec). It is the most common form of all cardiac arrhythmias. Premature ventricular complexes have no clinical significance except in concurrence with heart diseases.Arterial Pressure: The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arterial pressure in the BRACHIAL ARTERY.Risk Assessment: The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)Atrioventricular Node: A small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus. It gives rise to the atrioventricular bundle of the conduction system of the heart.Injections, Intravenous: Injections made into a vein for therapeutic or experimental purposes.Atrial Function: The hemodynamic and electrophysiological action of the HEART ATRIA.Nitroprusside: A powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. It is also an indicator for free sulfhydryl groups in proteins.Coronary Circulation: The circulation of blood through the CORONARY VESSELS of the HEART.Heart Conduction System: An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.Physical Conditioning, Animal: Diet modification and physical exercise to improve the ability of animals to perform physical activities.Infusions, Intravenous: The long-term (minutes to hours) administration of a fluid into the vein through venipuncture, either by letting the fluid flow by gravity or by pumping it.Atrial Fibrillation: Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.Kidney: Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.Digoxin: A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Stress, Psychological: Stress wherein emotional factors predominate.Nitroglycerin: A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.Dobutamine: A catecholamine derivative with specificity for BETA-1 ADRENERGIC RECEPTORS. It is commonly used as a cardiotonic agent after CARDIAC SURGERY and during DOBUTAMINE STRESS ECHOCARDIOGRAPHY.Vagotomy: The interruption or removal of any part of the vagus (10th cranial) nerve. Vagotomy may be performed for research or for therapeutic purposes.Cohort Studies: Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.Renin: A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC 3.4.99.19.Cold Temperature: An absence of warmth or heat or a temperature notably below an accustomed norm.Biological Markers: Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.Muscle, Skeletal: A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.Hypertrophy, Left Ventricular: Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.Case-Control Studies: Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.Stress, Physiological: The unfavorable effect of environmental factors (stressors) on the physiological functions of an organism. Prolonged unresolved physiological stress can affect HOMEOSTASIS of the organism, and may lead to damaging or pathological conditions.Forearm: Part of the arm in humans and primates extending from the ELBOW to the WRIST.Linear Models: Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.Carotid Sinus: The dilated portion of the common carotid artery at its bifurcation into external and internal carotids. It contains baroreceptors which, when stimulated, cause slowing of the heart, vasodilatation, and a fall in blood pressure.Regression Analysis: Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.Infant, Newborn: An infant during the first month after birth.Medulla Oblongata: The lower portion of the BRAIN STEM. It is inferior to the PONS and anterior to the CEREBELLUM. Medulla oblongata serves as a relay station between the brain and the spinal cord, and contains centers for regulating respiratory, vasomotor, cardiac, and reflex activities.Blood Volume: Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.Denervation: The resection or removal of the nerve to an organ or part. (Dorland, 28th ed)Ventricular Fibrillation: A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.Physical Fitness: The ability to carry out daily tasks and perform physical activities in a highly functional state, often as a result of physical conditioning.Hypotension, Orthostatic: A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is a finding, and defined as a 20-mm Hg decrease in systolic pressure or a 10-mm Hg decrease in diastolic pressure 3 minutes after the person has risen from supine to standing. Symptoms generally include DIZZINESS, blurred vision, and SYNCOPE.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Muscarinic Antagonists: Drugs that bind to but do not activate MUSCARINIC RECEPTORS, thereby blocking the actions of endogenous ACETYLCHOLINE or exogenous agonists. Muscarinic antagonists have widespread effects including actions on the iris and ciliary muscle of the eye, the heart and blood vessels, secretions of the respiratory tract, GI system, and salivary glands, GI motility, urinary bladder tone, and the central nervous system.Ganglionic Blockers: Agents having as their major action the interruption of neural transmission at nicotinic receptors on postganglionic autonomic neurons. Because their actions are so broad, including blocking of sympathetic and parasympathetic systems, their therapeutic use has been largely supplanted by more specific drugs. They may still be used in the control of blood pressure in patients with acute dissecting aortic aneurysm and for the induction of hypotension in surgery.Random Allocation: A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.Heart Septal Defects: Abnormalities in any part of the HEART SEPTUM resulting in abnormal communication between the left and the right chambers of the heart. The abnormal blood flow inside the heart may be caused by defects in the ATRIAL SEPTUM, the VENTRICULAR SEPTUM, or both.Hypoplastic Left Heart Syndrome: A condition caused by underdevelopment of the whole left half of the heart. It is characterized by hypoplasia of the left cardiac chambers (HEART ATRIUM; HEART VENTRICLE), the AORTA, the AORTIC VALVE, and the MITRAL VALVE. Severe symptoms appear in early infancy when DUCTUS ARTERIOSUS closes.Sex Factors: Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances.Practolol: A beta-1 adrenergic antagonist that has been used in the emergency treatment of CARDIAC ARRYTHMIAS.Anaerobic Threshold: The oxygen consumption level above which aerobic energy production is supplemented by anaerobic mechanisms during exercise, resulting in a sustained increase in lactate concentration and metabolic acidosis. The anaerobic threshold is affected by factors that modify oxygen delivery to the tissues; it is low in patients with heart disease. Methods of measurement include direct measure of lactate concentration, direct measurement of bicarbonate concentration, and gas exchange measurements.Heart Neoplasms: Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.Galvanic Skin Response: A change in electrical resistance of the skin, occurring in emotion and in certain other conditions.Ventricular Dysfunction: A condition in which HEART VENTRICLES exhibit impaired function.Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed)Arteries: The vessels carrying blood away from the heart.Carbazoles: Benzo-indoles similar to CARBOLINES which are pyrido-indoles. In plants, carbazoles are derived from indole and form some of the INDOLE ALKALOIDS.
Diversional therapyPhysical Benefits can include: • Decrease in blood pressure • Decrease in heart rate • Increase in bone mass and strength • ...
... increased blood pressure and heart rate; proteinuria, hematuria (blood in the urine), bladder injury; in animals: teratogenic ... Diphenylamine targets the red blood cell system and can cause abnormal erythropoiesis in the spleen, and thus congestion of the ...
... increased heart rate and/or blood pressure; decreased sex drive; unexplained weight gain; increased urination and/or nocturia; ... The most serious consequence of untreated OSA is to the heart. Persons with sleep apnea have a 30% higher risk of heart attack ... As in central apnea, pauses are followed by a relative decrease in blood oxygen and an increase in the blood carbon dioxide. ... This can result in a severe form of congestive heart failure known as cor pulmonale. Dyastolic function of the heart also ...
High heart rates lead to female fetuses. Swimming with full stomach causes cramps and that one should wait an hour after eating ... Toes pointed up signify low blood sugar. Letting a wound "dry out" is the proper treatment. Cracking knuckles gives arthritis. ...
... sudden increases in heart rate and blood pressure; or development of respiratory distress, diaphoresis, or anxiety. Once the ... As an example, a patient who has a respiratory rate of 25 breaths/min and an average tidal volume of 250 mL/breath has an RSBI ... A RSBI score of less than 65 indicating a relatively low respiratory rate compared to tidal volume is generally considered as ... maintain a respiration rate of less than 35/min, and (3) keep an oxygen saturation of 90% without arrhythmias; ...
I. Action on blood pressure and heart rate". Arzneimittel-Forschung. 25 (10): 1557-61. PMID 1243037. Cosnier, D.; Labrid, C.; ...
Its use elevates heart rate and blood pressure. It also impairs baroreflex control (which helps to control blood pressure) and ... "The short-term effect of water-pipe smoking on the baroreflex control of heart rate in normotensives". Autonomic Neuroscience. ... including control of heart rate) Hookah use also acutely harms vascular functioning, increases inflammation, and harms lung ... This prevents wind from increasing the burn rate and temperature of the coal, and prevents ash and burning embers from being ...
Many people with POTS exhibit low blood volume (hypovolemia), which can decrease the rate of blood flow to the heart. To ... it is thought that impaired constriction of the blood vessels causes blood to pool in the veins of the lower limbs. Heart rate ... This symptom is known as orthostatic (upright) tachycardia (fast heart rate). It occurs without any coinciding drop in blood ... Ivabradine can successfully restrain heart rate in POTS without affecting blood pressure and approximately 60% of POTS patients ...
The blood pressure drops, and the heart rate falls. Blistering occurs at the site of the bite, developing along the affected ... Bleeding is a common symptom, especially from the gums and in the urine, and sputum may show signs of blood within 20 minutes ... Discoloration may occur throughout the swollen area as red blood cells and plasma leak into muscle tissue. Death from ... Blood. 68 (4): 869-74. PMID 3092888. Maung-Maung-Thwin, Khin-Mee-Mee, Mi-Mi-Kyin, Thein-Than (1988). "Kinetics of envenomation ...
Drowsiness, incoherence, hallucinations, convulsions, slow heart rate (Reflex Bradycardia). Fear, anxiety, restlessness, tremor ... Low blood pressure caused by phenothiazines. Hypertension. Pheochromocytoma. Patient on MAOIs. For shock due to loss of blood ... It has been used as a treatment for low blood pressure. ATC Classification: C01CA11 - mephentermine ; Belongs to the class of ... Used in the treatment of heart failure. Mephentermine appears to act by indirect stimulation of β-adrenergic receptors causing ...
... increased heart rate, falling blood pressure, and other symptoms), which can lead to death on rare occasions. Between 1980 and ... The heart rate increases, and blood pressure falls rapidly. Most people will only experience mild skin irritation after being ... their rates are only 1.4% and 0.6%. The annual sting exposure rates for the jack jumper ant, Western honeybee and European wasp ... Allergy prevalence rates are significantly lower in highly urbanised areas and much higher in rural areas. These ants represent ...
The heart rate increases, and blood pressure falls rapidly. In about 3% of cases, the sting causes anaphylaxis. Treatment is ...
... which decreases the heart rate and causes a general vasodilation. An increase in arterial blood pressure reflexly elicits an ... increase in vagal neuronal activity to the heart (i.e. the resulting decreased heart rate). The afferent nerves from the ... They are only sensitive to blood pressures above 60 mmHg. When these receptors are activated they elicit a depressor response; ...
This can progress to the heart stopping altogether. Some CCBs can also cause a fast heart rate as a result of the low blood ... get slow heart rate and low blood pressure. This can progress to the heart stopping altogether. CCBs of the dihydropyridine ... It may not improve with the usual treatments used for a low blood pressure and a slow heart rate. In those who have no symptoms ... Slow heart rate can be treated with atropine and sympathomimetics. Low blood pressure is treated with vasopressors such as ...
... that lead to a variety of heart problems. The drug also causes increased heart rate and blood pressure. In a 1995 review ... Resistant dogs show a reduced heart rate during ischemia, while susceptible dogs show increased heart rate (beyond that induced ... Billman was elected a Fellow of the American Heart Association in 2001. In 2011, he was elected a Fellow of the Heart Rhythm ... Billman has studied the effects of omega-3 fatty acids on the heart and circulatory system. He has also studied the effects of ...
A fast heart rate and high blood pressure may occur. Occasionally, it may result in an abnormal heart rhythm. While the safety ... It plays an important role in the fight-or-flight response by increasing blood flow to muscles, output of the heart, pupil ... ECC Committee, Subcommittees and Task Forces of the American Heart Association (2005). "2005 American Heart Association ... While epinephrine does increase aortic, cerebral, and carotid circulation pressure, it lowers carotid blood flow and end-tidal ...
The result can be hives or red patches all over the skin or may feel changes in heart rate or breathing rate. A doctor may ... Blood-sampling device Blood sugar A (misnomer) name for blood glucose. Blood urea nitrogen (BUN) A measurement of a metabolic ... Morbidity rate the rate at which Mortality rate the rate at which death occurs (usually used as a statistical shorthand in ... Diabetics have higher rates of cardiovascular disease and higher rates of high blood pressure. Hives a skin condition caused, ...
Blood pressure and heart rate should be monitored continually during infusion. Cleviprex is a single use product that should ... Monitor blood pressure and heart rate continually during infusion, and then until vital signs are stable. Patients who receive ... As the blood pressure approaches goal, the infusion rate should be increased in smaller increments and titrated less frequently ... In clinical trials, a similar increase in heart rate was observed in both Cleviprex and comparator arms. Dihydropyridine ...
A fast rate of breathing (in a spontaneously breathing patient), cyanosis, hypertension, abnormal heart rhythms, and high blood ... Symptoms include muscle rigidity, high fever, and a fast heart rate. Complications can include rhabdomyolysis and high blood ... an increased heart rate and abnormally rapid breathing, increased carbon dioxide production, increased oxygen consumption, ... first remove or disable the vaporizers and then flush the machine with 10 L/min or greater fresh gas flow rate for at least 20 ...
Rats that overexpressed L3MBTL4 had higher blood pressure and heart rate. Proteins that are thought to be co-expressed ...
... the National Heart, Lung, and Blood Institute Family Heart Study". Hypertension. 40 (1): 1-6. doi:10.1161/01.HYP. ... Cardiac output is determined by stroke volume and heart rate; stroke volume is related to myocardial contractility and to the ... leading to raised blood volume and raised blood pressure. So elevated renin levels in the blood (normally 1.98-2.46 ng/ml in ... Local production of angiotensin II in various tissues, including the blood vessels, heart, adrenals, and brain, is controlled ...
It can cause low blood pressure and an irregular heart rate. There are concerns that injecting it into a joint can cause ... Lidocaine works by blocking sodium channels and thus decreasing the rate of contractions of the heart. When used locally as a ... The volume of distribution is 1.1 L/kg to 2.1 L/kg, but congestive heart failure can decrease it. About 60% to 80% circulates ... The same principle applies for this drug's actions in the heart. Blocking sodium channels in the conduction system, as well as ...
... blocks this and decreases heart rate, which lowers blood pressure. The ability of penbutolol to act as a partial ... Blocking β adrenergic receptors decreases the heart rate and cardiac output to lower arterial blood pressure. β blockers also ... The increase in cAMP ultimately alters the movement of calcium ions in heart muscle and increases heart rate. ... which ultimately results in less water being reabsorbed by the kidneys and therefore a lower blood volume and blood pressure. ...
High dose may cause high blood pressure or high heart rate. It may also increase cardiac work after myocardial infarction when ...
Stroke volume and blood pressure falls, while the heart rate increases. The Valsalva maneuver is used to aid in the clinical ... Venous blood can once more enter the chest and the heart, cardiac output begins to increase. Return of cardiac output Blood ... With return of blood pressure, the pulse rate returns towards normal. Deviation from this response pattern signifies either ... Reduced venous return and compensation Return of systemic blood to the heart is impeded by the pressure inside the chest. The ...
doi:10.1182/blood-2010-05-283770.. *^ Belikov AV, Schraven B, Simeoni L. T cells and reactive oxygen species. Journal of ... The late phase of sepsis is characterized by an increased microbiological burden and death rate. Critical Care. July 2011, 15 ( ... IL-10 Induces T Cell Exhaustion During Transplantation of Virus Infected Hearts. Cellular Physiology and Biochemistry. 2016, 38 ... Blood Cancer Journal. July 2015, 5 (7): e330. PMC 4526784. PMID 26230954. doi:10.1038/bcj.2015.58 （英语）.. ...
Artificial Heart Valves - OpenWetWareHeart Basics. The heart is one of two organs that make up the cardiovascular system; it pumps blood throughout the body. "The ... Thus, the demand for artificial heart valves is expanding at a rate of 10-12% per year" [2]. ... Heart valves are important to making the heart act as a pump. There are four heart valves: tricuspid, mitral, pulmonic, and ... Transcatheter heart valve replacement is the newest option in heart valve replacement. Rather than enduring open heart surgery ...
Blood Pressure vs. Heart Rate (Pulse)The American Heart Association explains how heart rate does not determine high blood pressure. ... Is blood pressure the same thing as heart rate? ... heart rate.. *The more fit you are, the sooner your heart rate ... Heart rate and blood pressure do not necessarily increase at the same rate. A rising heart rate does not cause your blood ... While your blood pressure is the force of your blood moving through your blood vessels, your heart rate is the number of times ...
Men's mental health influenced by blood pressure, heart rate in adolescenceHigh blood pressure and high heart rate experienced in male teenage years may lead to an increased risk of OCD, schizophrenia, ... Similarly, compared with males in the lower heart rate category, men in the higher heart rate category had a 21 percent ... Mens mental health influenced by blood pressure, heart rate in adolescence. Published Thursday 27 October 2016 Published Thu ... Men who have high blood pressure and high heart rate in their teens are more likely to develop OCD, schizophrenia, and anxiety ...
High heart rate vs normal blood pressure - Heart Disease - MedHelpMy blood pressure was well under control. When diagnosed with Tachycardia I was prescrbed Atenolol, under medicati... ... My heart has always beat faster than normal, 90-108, but recently it went up to 139. ... There is no association btwn heart rate and blood pressure in those ranges. Of course, blood pressure is heart rate dependent ... my resting heart rate has ranged from 93 - 123, Ive noticed that when my heart rate is at its lowest, my blood pressure ...
Is there any relation between the environment temperature, blood pressure and heart rate? ... Nutritional Supplements and Heart Health Fish oil, folic acid, vitamin C. Find out if these supplements are heart-healthy or ... Can Mental Stress Lead to Heart Disease? Can depression and anxiety cause heart disease? Get the facts in this Missouri ... 1) In a warmer climate, the blood vessels near the skin tend to dilate. The dilation will tend to mildly lower BP and mildly ...
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Blood Pressure and Heart Rate Variability to Detect Vascular Dysregulation in Glaucoma... diastolic blood pressure and heart rate compared to the interaction of time series systolic blood pressure and heart rate. The ... blood pressure interaction with heart rate and 64 parameters for the interaction of diastolic blood pressure and heart rate. ... The controls showed a mean diastolic blood pressure of mmHg and a mean systolic blood pressure of mmHg. Mean heart rate in the ... min; healthy controls showed a mean heart rate of /min. The mean as well as standard deviation of the heart rate and diastolic ...
When Young Adults Vape, Blood Pressure, Heart Rate May SpikeElectronic cigarettes that contain nicotine may prompt spikes in blood pressure and heart rate in the young, a new study ... both blood pressure and heart rate increased. During the recovery period, heart rate dropped back to normal, but blood pressure ... Research has shown that traditional cigarettes trigger increases in blood pressure and heart rate and lower so-called muscle ... Heart rate, blood pressure and MSNA were measured throughout the vaping sessions. ...
Blood pressure and heart rate effects following a single dose of bitter orange. - PubMed - NCBIBlood pressure and heart rate effects following a single dose of bitter orange.. Bui LT1, Nguyen DT, Ambrose PJ. ... it is hypothesized that bitter orange may increase blood pressure (BP) and heart rate (HR). ...
Does the heart rate drop when the blood pressure is high?... Chronic Illness Forums. , ... What medications are you on? Some medications can cause low BUT normal heart rates. Your dizzyness can be either a side effect ... Heart & Cardiovascular Disease. ,. Does the heart rate drop when the blood pressure is high? ...
Checking blood pressure and heart rate Stock Photo #11717545Stock photo doctor checking blood pressure and heart rate in a hospital or in pharmacy with young female patient. 6.2 MB. 6048 ... doctor checking blood pressure and heart rate in a hospital or in pharmacy with young female patient ... adult, background, blood, business, cardiology, care, caucasian, device, disease, doctor, equipment, exam, examination, female ... adult, background, blood, business, cardiology, care, caucasian, device, disease, doctor, equipment, exam, examination, female ...
Specific dosage of sickle cell drug increases survival rate | National Heart, Lung, and Blood Institute (NHLBI)... and treatment of heart, blood vessel, lung, and blood diseases; and sleep disorders. The Institute also administers national ... Researchers at the National Heart, Lung and Blood Institute (NHLBI) and the National Institute of Diabetes and Digestive and ... Part of the National Institutes of Health, the National Heart, Lung, and Blood Institute (NHLBI) plans, conducts, and supports ... Hydroxyurea is the only FDA-approved drug to treat sickle cell anemia, a rare blood disorder. ...
What is the effect of acetylcholine on heart rate and blood pressure? | Reference.comAcetylcholine slows the heart rate and decreases blood pressure. The National Dysautonomia Research Foundation states that the ... Can smoking tobacco have an effect on your blood pressure measurement?. A: A persons blood pressure and heart rate rise while ... What are the recommended chart rates for blood pressure and pulse rate?. A: Normal blood pressure is less than 120/80 ... Acetylcholine slows the heart rate and decreases blood pressure. The National Dysautonomia Research Foundation states that the ...
Why would heart rate drop to mid 50's only when systolic blood pressure reading?... blood pressure, heart - Answer: The systolic blood pressure number (top number) measures the ... ... Home › Q & A › Questions › Why would heart rate drop to.... Why would heart rate drop to mid 50s only when systolic blood ... Measuring pulse rate does not indicate high or low blood pressure. . A rising heart rate does not cause your blood pressure to ... My usual heart rate is low 70s, but recently my blood pressure has been wacked. I have not taken blood pressure medication, ...
Hello I have a few questions about my heart rate and pressure. I am 42 yrs old, take vitamins, iron due to slight anemia, ... It seems like when my blood pressure is 120s over 80s my heart rate is high. Then when my bp is high, 139/90 my heart rate was ... My heart rate over the last 3 to 5 years has been acting funny. I am usually around 100 and get tachy really easy. My blood ... A few questions about heart rate and blood pressure. Chronic Illness Forums. , ...
Adview 2 Monitor (Blood Pressure & Heart Rate Only)ADview 2 Monitor (Blood Pressure, Heart Rate & ChipOx Nellcor-compatible SpO2) ADview 2 Monitor (Blood Pressure, Heart Rate & ... ADC Blood Pressure Cuff Adview 9000 Adult Medium Nylon ADview 2 Monitor (Blood Pressure, Heart Rate, ChipOx Nellcor-compatible ... Blood Pressure/Heart Rate. *Range *Pressure: Diastolic: 20-200 mmHg (adult), 20-160 mmHg (pediatric). ... This Adview 2 model comes with blood pressure and heart rate feature only. ...
Heart Rate And Blood Infographic Template - Download Free Vector Art, Stock Graphics & ImagesHeart Rate And Blood Infographic Template Vector. Choose from thousands of free vectors, clip art designs, icons, and ... Heart Rate And Blood Infographic Template. Edit Vector .cls-1{fill-rule:evenodd;}. ...
Heart Rate, Blood Pressure, and Exercise | Experiment #11 from Human Physiology with Vernier Obtain graphic representation of heart rate and blood pressure. Determine the effect of exercise on heart rate, and systolic, ... Use blood pressure readings and pulse to infer changes in cardiac output and peripheral vascular resistance with exercise. ... Obtain graphic representation of heart rate and blood pressure.. *Determine the effect of exercise on heart rate, and systolic ... Heart Rate, Blood Pressure, and Exercise. Recommended for High School.. Introduction. The adaptability of the heart can be ...
Blood pressure and heart rate were recorded over 24-hour periods on 39 occasions in 20 subjects 5 to 72 weeks after heart ... Blood pressure and heart rate were recorded over 24-hour periods on 39 occasions in 20 subjects 5 to 72 weeks after heart ... Heart Rate / physiology*. Heart Transplantation / physiology*. Humans. Hypertension / epidemiology. Immunosuppression. Middle ... In 38 of the 39 records the mean nighttime heart rate was lower than the mean daytime rate, with a peak difference of 20.1 +/- ...
Blood pressure rise and heart rate rise with carotid artery occlusion were smaller in diabetic than in normal rats. Blood ... In general supine tilt induced a larger blood pressure fall, slower blood pressure recovery from the fall and larger heart rate ... Heart rate recovery from the fall was slightly larger in prone than in supine tilt in normal rats. The blood pressure fall and ... Blood pressure and heart rate changes were recorded on supine or prone head-up tilt and on carotid artery occlusion in normal ...
Genomic blood test predicts survival rates after surgery for advanced heart failure | EurekAlert! Science News... uses gene activity data from immune cells was 93 percent accurate in predicting survival rates for people with advanced heart ... An experimental blood test developed at UCLA that ... Genomic blood test predicts survival rates after surgery for ... Genomic blood test predicts survival rates after surgery for advanced heart failure. University of California - Los Angeles ... can be surgically implanted in people with advanced heart failure to help the hearts pumping function. But people with ...
Plots show respiratory and heart rate time series (left) and spectra (right) for one subject with "peaky" heart rate spectra (A ... Spectral Analysis of Blood Pressure and Heart Rate Variability in Evaluating Cardiovascular Regulation. A Critical Appraisal. ... Novak V, Novak P, De Champlain J, Le Blanc AR, Martin R, Nadeau R. Influence of respiration on heart rate and blood pressure ... Blood pressure modulation by central venous pressure and respiration: buffering effects of the heart rate reflexes. Circulation ...
... heart modelling, cardiovascular and lung dynamics, neurobiology, computational neuroscience, biomechanics, biomedical ... Increase of Short-Term Heart Rate Variability Induced by Blood Pressure Measurements during Ambulatory Blood Pressure ... Objective. The possible effect of blood pressure measurements per se on heart rate variability (HRV) was studied in the setting ... the blood pressure measurement itself produces an increase in short-term heart rate variability. Clarifying the physiological ...
Order ADview 2 Monitor (Blood Pressure, Heart Rate, Masimo SpO2 & Temperature) today. ... ADview 2 Monitor (Blood Pressure, Heart Rate & Masimo SpO2) AdView Monitor ADview 2 Monitor (Blood Pressure & Heart Rate Only) ... Pulse Heart Rate w/ Motion: 20-300 BPM: 3 BPM. Blood Pressure/Heart Rate. *Range *Pressure: Diastolic: 20-200 mmHg (adult), 20- ... ADC Blood Pressure Cuff Adview 9000 Adult Medium Nylon ADview 2 Monitor (Blood Pressure, Heart Rate & ChipOx Nellcor-compatible ...
Adrenergic Drugs - blood, pain, time, operation, heart, types, nausea, rateThey are used to increase the output of the heart, to raise blood pressure, and to increase urine flow as part of the treatment ... Adrenergics are also used as heart stimulants. They may be given to a patient to reverse the drop in blood pressure that is ... Norepinephrine (Levophed): used to increase the output of the heart and raise blood pressure as part of the treatment of shock ... Metaraminol (Aramine): used to raise the blood pressure and stimulate the heart in treating patients with shock. ...
OxygenationAorticLungPumpComplicationsContractionsArterialAutonomicHypertensionPulse rateWaterproofArteriesAndroidMmHgTrackerHypertensiveBeats per miPedometerDiastolic and systolic blood prRestingWristbandVariationReminderSystolic and diastolic blood pressuresHeartbeatMeasuring blood pressureSympathetic ActivityRegulate blood pressureDecreases blood pressureMeasurementsCardiovascular DiseaseMeasurementPumpsResearchersPerson's heartVesselStatistically significantMedicationDiseaseResponsesCorrelationCardiac healthParasympatheticMonitorNormalOxygen SaturationLowersInvestigateParticipantsIndicesDilatePressure readingsPhysiological
- On the right side of the heart, the tricuspid and pulmonic valves regulate the flow of blood that is returned from the body to the lungs for oxygenation, whereas on the left side, the mitral and aortic valves control the flow of oxygenated blood to the body" . (openwetware.org)
- Bi-leaflet heart valves for aortic and mitral replacement. (openwetware.org)
- The development of the heart valve design was fueled by the introduction of the heart-lung bypass machine,which was first used successfully on humans in 1953 to perform an atrial septal repair". (openwetware.org)
- Heart valves are important to making the heart act as a pump. (openwetware.org)
- The following complications have directed future research into the design of artificial heart valves. (openwetware.org)
- The contractions of the heart necessary to drive the blood are controlled by electrochemical impulses created by pace maker cells" . (openwetware.org)
- In addition, systemic vascular factors like arterial hypertension and hypotension, cardiovascular diseases, vasospasms, and others have been identified to play a significant role in the disease as well as impaired ocular blood flow [ 1 - 3 ]. (hindawi.com)
- Mean arterial pressure (MAP) is a useful measure of the adequacy of tissue perfusion, and is not a simple average of systolic and diastolic blood pressures. (vernier.com)
- Determine the effect of exercise on heart rate, and systolic, diastolic and mean arterial pressures. (vernier.com)
- The rate, rhythm and regularity of the beat are assessed, as well as the strength and tension of the beat, against the arterial wall. (surgeryencyclopedia.com)
- Electrocardiogram and intra-arterial blood pressure were recorded in 96 men (aged 35 to 45 years) by the Oxford method over a 30-hour period. (ahajournals.org)
- The arterial pressure indicates the force inflicted on the walls of arteries when the blood is pumped around the body. (blood-pressure-diet.com)
- The current study demonstrates that acrolein exposure alone increases heart rate, mean arterial blood pressure, breathing frequency, and minute volume in the hypertensive SH rat, with limited effects in the normotensive WKY rat. (burningissues.org)
- This has important implications for the use of e-cigarettes, as arterial stiffness is associated with an increased risk of heart attacks and strokes in later life. (medicalxpress.com)
- The researchers measured blood pressure, heart rate and arterial stiffness immediately after smoking the e-cigarettes and then two and four hours later. (medicalxpress.com)
- no such effect was seen on heart rate and arterial stiffness in the volunteers who had smoked e-cigarettes without nicotine. (medicalxpress.com)
- As the block spreads to thoracic segments, there is vasodilatation of the highly compliant splanchnic bed, and systemic arterial pressure decreases because of venous pooling of blood in this region. (asahq.org)
- Doctor checking old man patient arterial blood pressure. (videoblocks.com)
- taking into account you switch upon your home blood pressure monitor and admit your pressure, it is the arterial pressure that you are measuring. (centralvalleybaptist.net)
- The present prospective pilot study investigates the autonomic blood pressure regulation in patients with primary open-angle glaucoma (POAG) and controls. (hindawi.com)
- However, in diabetic rats such cervical autonomic nerve stimulation produced larger heart rate changes than in normal rats. (nih.gov)
- In particular, the assessment of blood pressure and heart rate spectra aimed at providing indexes of autonomic cardiovascular modulation is discussed. (ahajournals.org)
- The decrease in sympathetic tone precedes the changes in vascular tone, and markers of autonomic activity would be useful to predict and prevent decreases in maternal blood pressure. (asahq.org)
- For people with high blood pressure (HBP or hypertension), there's no substitute for measuring blood pressure. (heart.org)
- Written by popular Natural News writer Vicki Batt, this book includes everything you need to know about preventing heart disease, reversing hypertension, and nurturing your cardiac health without medication. (naturalnews.com)
- but the massage group experienced a significant reduction in heart rate after each session, as well as blood pressure reduction over a longer term than the control group.Women in Malaysia with hypertension experienced a reduction in heart rate, blood pressure and inflammatory marker VCAM-1 after receiving Swedish massage therapy once a week for four weeks. (massagemag.com)
- If someone is in acute stress, having a heart attack, and can generate acute hypertension [high blood pressure], he is in good shape," he said. (bio-medicine.org)
- Continuous heart rate and blood pressure recordings were performed in 80 healthy pregnant women as controls (CON), 19 with chronic hypertension (CH), 18 with pregnancy-induced hypertension (PIH), and 44 with pre-eclampsia (PE). (hu-berlin.de)
- Renal sympathetic denervation (RDN) represents a novel technique in the treatment of uncontrolled hypertension, documented to reduce office and ambulatory blood pressure (BP) as well as central sympathetic activity in certain patients with uncontrolled hypertension (1) . (onlinejacc.org)
- The cohort included 6424 subjects aged 40-53 years at entry, who were not being treated for hypertension or diabetes and had no overt heart disease. (ovid.com)
- Ambulatory blood pressure monitoring (ABPM) is used for the evaluation of out-of-office blood pressure (BP), however, knowledge concerning the detailed behavior of nocturnal blood pressure (BP) and pulse rate (PR) is limited.A total of 190 participants (64 ± 15 years, 46.3% males ) underwent ABPM for diagnosis of hypertension or evaluation of hypertensive therapy . (bvsalud.org)
- There is no direct correlation between the two, and high blood pressure , or hypertension, does not necessarily result in a high pulse rate, and vice versa. (livescience.com)
- What are the recommended chart rates for blood pressure and pulse rate? (reference.com)
- The heart rate (pulse rate) is the number of times your heart beats per minute. (drugs.com)
- There is no good correlation between pulse rate and blood pressure. (drugs.com)
- Measuring pulse rate does not indicate high or low blood pressure. (drugs.com)
- The greater your fitness level, the sooner your pulse rate will return to normal. (drugs.com)
- SpO2 error is ±4%, pulse rate error is ±2 bpm or ±2%, whichever is greater. (newegg.com)
- Pulse rate was measured by palpation on radial artery for 1 minute. (clinicaltrials.gov)
- Hemodynamic parameters (blood pressure [BP] and heart/pulse rate) have been studied pre and post cervical [ 1 5 ] and thoracic manipulation. (chiro.org)
- Have you ever tried to record your pulse rate at these times? (metafilter.com)
- Circadian rhythms affect various body systems, including temperature, blood pressure and pulse rate. (metafilter.com)
- When you sleep at night you're cooler, have lower blood pressure and a slower pulse rate. (metafilter.com)
- Want to be notified when the NO.1 DT98 Full Round HD Screen Sports Smart Watch Bluetooth Call ECG Heart Rate Blood O2 Monitor IP68 Waterproof Fitness Tracker gets even cheaper? (technologyevangelist.com)
- We're tracking the price of the NO.1 DT98 Full Round HD Screen Sports Smart Watch Bluetooth Call ECG Heart Rate Blood O2 Monitor IP68 Waterproof Fitness Tracker every day so you know if that deal is really a steal! (technologyevangelist.com)
- The systolic blood pressure number (top number) measures the pressure in the arteries when the heart beats (when the heart muscle contracts). (drugs.com)
- You need some pressure to maintain blood flow, but if this pressure is too high, it can create microscopic tears in the walls of the arteries and speed up the flow. (blood-pressure-diet.com)
- To avoid dizziness or fainting due to the limited blood supply to the brain, the blood pressure in the large arteries decreases to compensate and regulate. (biomedcentral.com)
- Too many (150 mg/dl or more) can team up with cholesterol to clog your arteries, which can lead to a heart attack or stroke. (menshealth.com)
- Without regular blood pressure checks , people not even be aware that this condition is damaging their arteries, heart, and other internal organs. (bloodpressuremagazine.com)
- Optimal cholesterol levels don't always translate to perfect heart health, based on a recent study that found half of healthy patients with normal cholesterol levels have dangerous plaque build-up in their arteries. (polar-heartrate-monitors.com)
- So in in fact basic terms, your heart pumps freshly oxygenated blood out from your heart through your arteries. (centralvalleybaptist.net)
- Summarizing this, it is the arteries that receive the blood out from the heart and the veins that carry it back. (centralvalleybaptist.net)
- Fetal and maternal blood supply are typically connected in utero with one vein and two arteries to the fetus. (wikipedia.org)
- the umbilical arteries are responsible for removing oxygen poor blood from the fetus. (wikipedia.org)
- Successfully Added D18 Fitness Watch Smart Bracelet Heart Rate Monitor Blood Pressure Blood Oxygen Measurement Healthy Life Sleep Tracker for iOS Android Phone blue to your Shopping Cart. (chinavasion.com)
- For example, after 45 minutes exposure 15-minute SBP had reduced by a mean of 2.10 mmHg and heart rate by 2.21 beats per minute. (escardio.org)
- After 120 minutes, for example, mean SBP had risen from baseline by 2.19 mmHg, and heart rate by 1.70 beats per minutes. (escardio.org)
- High blood pressure means at least 140/90 mmHg. (cdc.gov)
- However, even while mercury is no longer used in most pressure monitoring devices, millimeters of mercury, in addition to referred to as mmHg, continues to be the way blood pressure levels are reported. (centralvalleybaptist.net)
- If the switch for bright screen via wrist rotation is turned on, the users can brighten the screen via wrist rotation.HEALTHY ASSISTANT- Fitness tracker with metal strap monitoring and recording heart rate indicators and blood pressure condition at all times and accurately record all day activities. (parenting.com)
- Loaded activity apps include a calorie tracker, step tracker, distance tracker and heart rate monitor. (realsimple.com)
- The study, "Effects of Swedish Massage Therapy on Blood Pressure, Heart Rate, and Inflammatory Markers in Hypertensive Women," involved 16 hypertensive women, ages 35 to 60 years old. (massagemag.com)
- The author explained that massage therapy is able to decrease anxiety and stress and "reduce blood pressure and heart rate in hypertensive individuals. (massagemag.com)
- Heart rate, free fatty acids level and morning plasma cortisol level are elevated in hypertensive subjects at any body mass index level, but particularly in the lean ones with high systolic blood pressure. (ovid.com)
- Male spontaneous hypertensive rats (SHR, 280-330 g, the age of 12 weeks) were inserted a catheter into the femoral artery for measurement of blood pressure and the microdialysis probe into the striatum for that of DA level according to the atlas of Paxinos and Watson [A +0.2 mm, L +2.8 mm, V +3.4 mm from bregma]. (nii.ac.jp)
- Research results - published online in JAMA Psychiatry - show that male teenagers who had a resting heart rate above 82 beats per minute had a 69 percent increased risk of developing obsessive-compulsive behavior (OCD), compared with male teenagers with a resting heart rate below 62 beats per minute. (medicalnewstoday.com)
- Your heart rate is the number of times your heart beats per minute, and it can change gradually as you age. (upmc.com)
- Normal heart rate varies from person to person, but a normal range for adults is 60 to 100 beats per minute, according to the Mayo Clinic. (livescience.com)
- A well-trained athlete may have a resting heart rate of 40 to 60 beats per minute, according to the American Heart Association (AHA). (livescience.com)
- For adults 18 and older, a normal resting heart rate is between 60 and 100 beats per minute (bpm), depending on the person's physical condition and age. (livescience.com)
- According to the American Heart Association, a normal pulse should be between sixty and one hundred beats per minute. (bloodpressuremagazine.com)
- Main function:- Heart rate monitoring- Blood/Blood oxygen pressure monitoring- Sleep monitoring- Sedentary reminder- Sports pedometer/calorie consumption/track record/exercise time- Call reminder and display- Message is pushed and displayed- Remote. (parenting.com)
- Participants passed a set of criteria, including specified diastolic and systolic blood pressure levels and no experience with Swedish massage therapy, and were screened for health conditions that may affect blood pressure. (massagemag.com)
- When you stop exercising, your heart rate does not immediately return to your normal (resting) heart rate. (heart.org)
- Previous smaller studies have reported elevated resting heart rate in people with major depressive disorder, post-traumatic stress disorder , generalized anxiety disorder, panic disorder, and psychotic disorders. (medicalnewstoday.com)
- The researchers aimed in this new large-scale cohort study to investigate whether differences in resting heart rate and blood pressure are associated with psychiatric disorders during the lifetimes of men in Sweden. (medicalnewstoday.com)
- Researchers from Sweden and Finland conducted a study based on data of 1,794,361 Swedish men whose resting heart rate and blood pressure were measured at military conscription at an average age of 18 years between 1969-2010. (medicalnewstoday.com)
- The data were adjusted for general cognitive ability (IQ), because, according to the study authors, IQ is associated with psychiatric morbidity, although its association with resting heart beat and blood pressure is unknown. (medicalnewstoday.com)
- In this large-scale longitudinal cohort study, we found men with higher resting heart rate and higher blood pressure in late adolescence to be more likely to have received a diagnosis of OCD, schizophrenia, or anxiety disorder later in life," say the authors. (medicalnewstoday.com)
- The strongest associations were seen with OCD, with men in the higher resting heart rate category 70-80 percent more likely to be at risk than men in the lower category. (medicalnewstoday.com)
- My resting heart rate has been running as low as 56 and than upto 87 I feel really tired and shaky? (drugs.com)
- During this time and on each visit three repeated measurements - resting heart rate, systolic blood pressure (SBP), and diastolic blood pressure (DBP) - were taken from each spa worker in the study room, a small space measuring 4 metres in height by 3.5 m in length and 3.2 m in width. (escardio.org)
- Swedish massage therapy's effect on blood pressure extended to four weeks, while resting had a less long-term effect. (massagemag.com)
- Stohs SJ, Preuss HG, Keith SC, Keith PL, Miller H, Kaats GR. Effects of p -Synephrine alone and in Combination with Selected Bioflavonoids on Resting Metabolism, Blood Pressure, Heart Rate and Self-Reported Mood Changes. (medsci.org)
- Resting metabolic rates (RMR), blood pressure, heart rates and a self-reported rating scale were determined at baseline and 75 min after oral ingestion of the test products in V-8 juice. (medsci.org)
- I cannot donate blood because my resting heart rate is 102. (healthtap.com)
- What can I do to reduce my resting heart rate? (healthtap.com)
- If you have no obvious causes of rapid resting heart rate such as fever , hyperthyroidism , anemia ,medications,etc perhaps an evaluation by a cardiologist is worthwhile for diagnosis and treatment. (healthtap.com)
- Resting heart rate sometimes 150bpm. (healthtap.com)
- My resting heart rate is, approximately, 65 and my blood pressure is around 100/70. (healthcaremagic.com)
- Your resting heart rate indicates how hard your heart is working in its normal state. (upmc.com)
- Your resting heart rate is your pulse when you are calmly sitting or lying. (livescience.com)
- It's best to measure your resting heart rate it in the morning before you get out of bed, according to the AHA. (livescience.com)
- For children ages 6 to 15, the normal resting heart rate is between 70 and 100 bpm, according to the AHA. (livescience.com)
- Athletes and people who are very fit can have resting heat rate of 40 bpm. (livescience.com)
- A resting heart rate lower than 60 could also be the result of taking certain medications. (livescience.com)
- There is no definitive medical advice on when a resting heart rate is too high, but most medical experts agree that a consistent heart rate in the upper levels can put too much stress on the heart and other organs. (livescience.com)
- For just US$28.99 , buy CURREN R5 Max Fitness Smart Bracelet Blood Oxygen Heart Rate Monitor Smart Wristband from the wholesale webshop online. (expreso.cl)
- It's common to have some variation in your individual blood pressure readings. (upmc.com)
- Ambulatory blood pressure and heart rate awake-asleep variation (dipping) showed a relatively flat pattern as markers of liver dysfunction were deteriorating. (biomedcentral.com)
- Don't worry about missing any important information.POWERFUL FUNTION - Smart watch with color screen supports calls reminder, SMS alerts push, remote camera, heart rate monitor, blood pressure monitor, sedentary reminder, calorie calculation, step counter, stopwatch. (parenting.com)
- In this respect, the power spectra for systolic and diastolic blood pressures provided better statistical differentiation between the groups than those for heart rate. (ahajournals.org)
- I take sotalol for irregular heartbeat.when the heart rate returns to normal after approx 24-30 hrs? (drugs.com)
- Abnormalities of the heart are diagnosed by analyzing the heartbeat (or pulse) and blood pressure. (surgeryencyclopedia.com)
- Is there any relation between blood pressure and the rate of heartbeat? (scienceproject.com)
- We used a database called "Heart Biomarker Evaluationin Apnea Treatment (HeartBEAT)" that consists of 6±2 hours of Electrocardiogram (ECG)recordings during nocturnal sleep from 318 patients at baseline and 301of them at 3 monthsfollow-up. (diva-portal.org)
- When measuring blood pressure, there are two types that are reported. (centralvalleybaptist.net)
- Objective To investigate the relationships of blood pressure with carbohydrate metabolism, sympathetic activity and cortisol at different levels of body mass index in middle-aged men. (ovid.com)
- The findings suggest that nicotine e-cigarettes repress the transmission of nerve impulses that regulate blood pressure and heart rate, and that nonsmokers who use nicotine e-cigarettes may put themselves at increased risk for high blood pressure, the researchers concluded. (healthday.com)
- Acetylcholine slows the heart rate and decreases blood pressure. (reference.com)
- Parameter variations related to blood pressure measurements were analyzed using one-way ANOVA with multiple comparisons. (hindawi.com)
- Measurements of blood pressure by Sphygmomanometer was made in 20 healthy young adults before the test and at 1min, 3min and 5min after immersing the hand up to wrist in cold water maintained at 5C. (scribd.com)
- Evaluation of blood pressure and heart rate with 24-hour ambulatory measurement does not seem to offer more information than conventional office measurements. (biomedcentral.com)
- For according to a new study1 in the European Journal of Preventive Cardiology, the essential oils which form the basis of aromatherapy for stress relief are also reported to have a beneficial effect on heart rate and blood pressure following short-term exposure - and may therefore reduce the risk of cardiovascular disease. (escardio.org)
- He also noted the opinion of the American Heart Association on air pollution in the development of cardiovascular disease. (escardio.org)
- Every 39 seconds an adult dies from heart attack, stroke or other cardiovascular disease. (cdc.gov)
- Can smoking tobacco have an effect on your blood pressure measurement? (reference.com)
- For every blood pressure measurement, 2-minute ECG segments (before, during, and after measurement) were analyzed to obtain time domain parameters of HRV: SDNN and rMSSD. (hindawi.com)
- Oximetry is the measurement of oxygen saturation in blood, and is usually expressed as a percentage (a normal reading is typically 97 percent or higher). (embedded-computing.com)
- FMT heart imaging was further assessed in the challenging application of inulin-based glomerular filtration rate (GFR) measurement. (aspetjournals.org)
- Blood pressure is a two-part measurement, expressed in a fraction, like 120/80 mm Hg. (upmc.com)
- When your heart beats it pumps blood through your body. (embedded-computing.com)
- The heart pumps and circulates blood in different parts of our body. (scienceproject.com)
- The first number is the systolic pressure, which measures pressure against your artery walls when your heart contracts and pumps blood out. (upmc.com)
- The second number, called the diastolic pressure, measures the blood's pressure against the artery wall as your heart rests between pumps. (upmc.com)
- Hypotension , or low blood pressure, means your heart pumps more slowly than normal. (upmc.com)
- that is as soon as your heart pumps the blood. (centralvalleybaptist.net)
- Months after federal regulators warned doctors that one of the heart pumps made by Danvers' Abiomed could be linked to a higher rate of death than previously thought, the company's device has been cleared by the FDA. (yahoo.com)
- An analysis by National Institutes of Health researchers has shown that people with sickle cell anemia who took the drug hydroxyurea at the recommended dose had higher survival rates than those who took less than the recommended dose. (nih.gov)
- Researchers at the National Heart, Lung and Blood Institute (NHLBI) and the National Institute of Diabetes and Digestive and Kidney Diseases reviewed data from 383 people who came to NIH for treatment or evaluation for sickle cell anemia between 2001 and 2010. (nih.gov)
- Researchers collected blood samples one day before surgery and took clinical data both before surgery and eight days afterward. (eurekalert.org)
- The researchers identified a set of 28 genes from the pre-surgery blood samples that predicted how well the patients' organ function would recover shortly after surgery -- and of those 28 genes, 12 helped predict whether organ function would improve after surgery and in forecasting whether the patients would live at least a year after the surgery. (eurekalert.org)
- The researchers hope to study whether the test can also be used to accurately predict how people with advanced heart failure and declining organ function will fare after undergoing other types of heart surgery and catheter-based interventions. (eurekalert.org)
- Researchers tested Swedish massage therapy's effect on blood pressure, heart rate and inflammatory markers, including VCAM-1 and ICAM-1. (massagemag.com)
- For example, a person's heart rate might be monitored. (bloodpressuremagazine.com)
- Dr Lundbäck and his colleagues are continuing to investigate the effects of e-cigarettes on blood vessel and lung functions in humans, as well as carrying out studies in the lab of the effect of e-cigarette vapour and liquid on cell cultures. (medicalxpress.com)
- Most patients responded to the cold pressor test with statistically significant increase in diastolic blood pressure than systolic blood pressure. (scribd.com)
- The results showa statistically significant correlation between heart rate (HR) and pro-inflammatory cytokines,independent of duration of ECG analysis. (diva-portal.org)
- When analysing data according to diastolic blood pressure, the limit being 95mmHg, similar results were obtained for glucose and insulin levels, but no trend in heart rate, free fatty acids level and cortisol level with the body mass index level was statistically significant. (ovid.com)
- When diagnosed with Tachycardia I was prescrbed Atenolol, under medication, my lowest Heart Rate was 86. (medhelp.org)
- I have not taken blood pressure medication, but all of a sudden it's all over the place. (drugs.com)
- People taking blood clotting medication, aspirin or anti-inflammatory medications may be more prone to nosebleeds. (blood-pressure-diet.com)
- However, a normal heart rate depends on the individual, age, body size, heart conditions, whether the person is sitting or moving, medication use and even air temperature. (livescience.com)
- Many medications people take especially medication for blood pressure, such as the beta blockers, will lower your heart rate," Bauman said. (livescience.com)
- Heart Disease and Saturated Fat: Do the Dietary Guidelines Have It All Wrong? (medhelp.org)
- Can Mental Stress Lead to Heart Disease? (medhelp.org)
- Can depression and anxiety cause heart disease? (medhelp.org)
- The Institute also administers national health education campaigns on women and heart disease, healthy weight for children, and other topics. (nih.gov)
- Postexercise Systolic Blood Pressure Response: Clinical Application to the Assessment of Ischemic Heart Disease. (ebscohost.com)
- Presents information on the clinical application of postexercise systolic blood pressure response in the assessment of ischemic heart disease. (ebscohost.com)
- There is evidence that in cirrhotic patients, certain hemodynamic parameters, such as blood pressure and heart rate, are related to the severity of liver disease. (biomedcentral.com)
- The strongest correlations were found with both ambulatory and office heart rate, which increased as indicators of severity of liver disease were worsening. (biomedcentral.com)
- Studies link sleep deficits with higher risks of obesity and heart disease. (menshealth.com)
- The goal was to see how well current definitions identify patients with truly low risk for heart disease. (polar-heartrate-monitors.com)
- Blood pressure responses were, however, of two patterns. (biomedsearch.com)
- Blood pressure responses after heart transplantation show the presence of nighttime "dippers" and "nondippers. (biomedsearch.com)
- The mechanisms accounting for the different circadian blood pressure responses in heart transplant recipients are not known. (biomedsearch.com)
- Here are some more things to know about the correlation between blood pressure and heart rate. (drugs.com)
- When you hear about cardiac health, heart rate and blood pressure come up a lot. (upmc.com)
- This, in turn, induces parasympathetic nerve activity and a feeling of relaxation [ 3 ]-[ 5 ] which can influence heart rate, blood pressure and breathing pace. (biomedcentral.com)
- Your target heart rate is based on age and can help you monitor the intensity of your exercise. (heart.org)
- Where can you purchase an exercise heart monitor? (reference.com)
- I monitor it and that's when I noticed every single time the systolic reading increased over 140, my heart rate dropped to mid 50's. (drugs.com)
- Heart Rhythm Monitor, Medical Cardio Illustration. (vecteezy.com)
- Heart Rhythm Monitor in Mobile Application. (vecteezy.com)
- The integrated heart rate monitor measuring your heart rate in real time during exercise, making your movements more scientific and effective. (chinavasion.com)
- Real time heart rate monitor, you can adjust your lifestyle for better heart health. (chinavasion.com)
- Typical pulse oximeters monitor the SpO 2 of a person's blood based on the red light (using a 600-750 nm wavelength) and infrared light (using a 850-1000 nm wavelength) absorption characteristics of HbO 2 and Hb. (embedded-computing.com)
- 3. It will monitor blood oxygen (SpO₂) when you want (by switch the smart bracelet to oxgen testing mode) or the smart bracelet would check it automatically every 1 hour. (hotukdeals.com)
- Knowledge about your heart rate can help you monitor your fitness level, and it may help you spot developing health problems if you are experiencing other symptoms. (livescience.com)
- You can also check Marcy Foldable Bike, NS-653 and Garmin Elastic strap for Heart Rate Monitor replacement for a better comparison at Heart-rate-monitor.biz. (heart-rate-monitor.biz)
- Pulse pressure, calculated by the difference together with systolic blood pressure and diastolic pressure, is in addition to used by medics as an indicator but for the purposes of this article and indeed for the majority who use a home blood pressure monitor purely for monitoring as opposed to medics who are diagnosing, it will not normally be relevant. (centralvalleybaptist.net)
- The more fit you are, the sooner your heart rate will return to normal. (heart.org)
- My heart has always beat faster than normal, 90-108, but recently it went up to 139. (medhelp.org)
- Some medications can cause low BUT normal heart rates. (healingwell.com)
- I think this blood pressure thing is not normal? (drugs.com)
- IF my blood pressure is normal when relaxed or first thing in the am below normal, the other day 112/77 to 139/90 during the day, is this considered hbp? (healingwell.com)
- Blood pressure and heart rate changes were recorded on supine or prone head-up tilt and on carotid artery occlusion in normal and streptozotocin diabetic rats (65 mg/kg). (nih.gov)
- In general supine tilt induced a larger blood pressure fall, slower blood pressure recovery from the fall and larger heart rate fall than prone tilt, both in normal and diabetic rats. (nih.gov)
- Heart rate recovery from the fall was slightly larger in prone than in supine tilt in normal rats. (nih.gov)
- The blood pressure fall and heart rate fall accompanying the tilt were statistically larger in diabetic than in normal rats. (nih.gov)
- Furthermore, blood pressure recovery from the fall was statistically more rapid and larger in normal than in diabetic rats. (nih.gov)
- Blood pressure rise and heart rate rise with carotid artery occlusion were smaller in diabetic than in normal rats. (nih.gov)
- Blood pressure changes with cervical sympathetic or vagus stimulation were almost the same in normal and diabetic rats. (nih.gov)
- It's normal to feel strong hunger if blood sugar is low, or if your stomach is too empty. (chilloutla.com)
- Most early symptoms are from higher-than-normal levels of glucose, a kind of sugar, in your blood. (chilloutla.com)
- Thus periodic breathing causes oxygen-sensitive (and by implication chemoreflex-related) anti-baroreflex VLF oscillations in RR interval and blood pressure in both patients with chronic heart failure and normal controls. (portlandpress.com)
- GFR was calculated using two‐compartment PK modeling, determining an average rate of 240 ± 21 μl/min in normal mice, in agreement with published mouse GFR ranges. (aspetjournals.org)
- however normal heart rate is 60 to 100. (healthcaremagic.com)
- 60 to 100 is normal heart rate as your husband is suffering from hypothyroidism he is likely to develop low cardiac output resulting in low bp and low heart rate.it may lead to cardiac complication( myocardial infarction ) at later stage so its better to control thyroid levels. (healthcaremagic.com)
- What Is a Normal Heart Rate? (livescience.com)
- A rate much slower than normal may mean trouble with your heart's electrical conduction system, says Dr. Stork, while a faster-than-normal rate may be an infection or dehydration. (menshealth.com)
- What Is Normal Blood Pressure ? (bloodpressuremagazine.com)
- What Is A Normal Heart Rate For Adults? (bloodpressuremagazine.com)
- A pulse oximeter is a non-invasive device that measures the oxygen saturation of a person's blood as well as their heart rate. (embedded-computing.com)
- Blood oxygen saturation is measured by examining hemoglobin, which is the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues. (embedded-computing.com)
- Blood oxygen saturation (SpO 2 ) is the ratio of oxy-hemoglobin to deoxy-hemoglobin. (embedded-computing.com)
- Since blood oxygen saturation can be determined by comparing the values of Hb and HbO 2 , one method for doing this is shining both a red LED and an infrared LED through a body part (such as a finger or wrist), and then comparing their relative intensities. (embedded-computing.com)
- Though this fluctuation is very small, it can be measured by a pulse oximeter using the same type of setup that is employed to measure blood oxygen saturation. (embedded-computing.com)
- Groups of ten patients with chronic heart failure and ten healthy controls performed voluntary periodic breathing with computer guidance, while ventilation, oxygen saturation, non-invasive blood pressure and RR interval were measured. (portlandpress.com)
- Short-term exposure to essential oils lowers blood pressure and heart rate. (escardio.org)
- Most importantly, getting fitter lowers the heart rate, by making heart muscles work more efficiently. (livescience.com)
- To investigate the role of non-pharmacological heart rate change on central hemodynamics in the first part of the study, the investigators acutely change pacing rate from atrial paced-atrial sensed (AAI)-mode 60 to 40 to 90 bpm and obtain hemodynamic parameters noninvasively after a short stabilisation period after each pacemaker rate change. (clinicaltrials.gov)
- In this project you will investigate to determine if blood pressure is affected by the heart rate. (scienceproject.com)
- Objectives This study sought to investigate left atrial (LA) remodeling in relation to blood pressure (BP) and heart rate (HR) after renal sympathetic denervation (RDN). (onlinejacc.org)
- In view of this, the present study set out to investigate the long-term effects of specific yoga postures on BP and HRV, focusing mainly on inversions (head below the heart) and semi-inversions (with a deep breathing pattern). (biomedcentral.com)
- The participants' blood pressure was checked before each vaping session and after a 10-minute recovery period from vaping. (healthday.com)
- Moreover, receiving head massage decreased the heart rate of the participants more than three-fold compared to those who did not. (naturalnews.com)
- These participants were only able to read or sleep to avoid affecting their blood pressure. (massagemag.com)
- Participants' blood pressure and heart rate were taken before and after every massage and rest session, as well as 48 hours after final sessions. (massagemag.com)
- Participants' blood was collected before initial massage and rest sessions and after final massage and rest sessions. (massagemag.com)
- At the start of the study, participants were 40-54 years old and had ideal health, which was defined as being a non-smoker and having optimal blood pressure, blood sugar, and cholesterol. (polar-heartrate-monitors.com)
- Nonlinear uni- and bivariate indices of continuous recordings of blood pressure and heart rate are altered in glaucoma. (hindawi.com)
- The alpha receptors make the heart beat faster, the pupils of the eyes dilate, and the muscles contract. (surgeryencyclopedia.com)
- The study authors reported similar associations for OCD , schizophrenia, anxiety, substance use disorders, and violence with higher and lower blood pressure readings. (medicalnewstoday.com)
- Use blood pressure readings and pulse to infer changes in cardiac output and peripheral vascular resistance with exercise. (vernier.com)
- Survival was poorest for the one-quarter of people who had the lowest blood pressure readings, less than 128 systolic, the study found. (bio-medicine.org)
- In this you have sudden onset of symptoms of anxiety with physiological changes causing increase in heart rate and BP. (healthcaremagic.com)
- Physiological assays using Rhopr-MS indicate that, despite the unusual M at position 8, it still retains myoinhibitory activity, inhibiting the frequency and reducing the amplitude of contractions in the anterior midgut and hindgut, and decreasing heart rate. (biologists.org)
- Rhodnius prolixus is an important blood-feeding model organism that is extensively used for physiological and endocrinological research. (biologists.org)
- Blood feeding initiates endocrinological and physiological changes that lead to a timed, and predictable, growth and development to the next instar or adult. (biologists.org)