Who Discovered the Frank-Starling Mechanism?
... pressure on heart function. I will present evidence that the essential features of this mechanism were discovered at Carl Ludwig’s Physiological Institute at the University of Leipzig in the course of the first experiments on the isolated perfused frog heart long before Otto Frank and Ernest H. Star ...
... pressure on heart function. I will present evidence that the essential features of this mechanism were discovered at Carl Ludwig’s Physiological Institute at the University of Leipzig in the course of the first experiments on the isolated perfused frog heart long before Otto Frank and Ernest H. Star ...
A Controlled Pilot Study of Stress Management Training of Elderly
... were invited to participate by the nurse at a local cardiac rehabilitation facility. Nineteen participants were inner city, low socioeconomic status African American, Asian American, or Latino patients, and were invited to participate by their cardiologists. Subjects had been diagnosed as having NYH ...
... were invited to participate by the nurse at a local cardiac rehabilitation facility. Nineteen participants were inner city, low socioeconomic status African American, Asian American, or Latino patients, and were invited to participate by their cardiologists. Subjects had been diagnosed as having NYH ...
Cardiovascular physiology
... myocardial fibers during cardiac cycle. It can be recorded by placing electrodes on body surface on opposite sides of the heart. The principle: -Body fluids are good conductors, so that when cardiac impulses pass through the heart, electrical currents ...
... myocardial fibers during cardiac cycle. It can be recorded by placing electrodes on body surface on opposite sides of the heart. The principle: -Body fluids are good conductors, so that when cardiac impulses pass through the heart, electrical currents ...
Hypoplasia of the Coronary Sinus with Coronary
... axis deviation, left anterior hemiblock and poor R-wave progression in leads V1 through V:<. Laboratory studies gave normal findings, including cholesterol level, which was 230, with triglycesides of 62 and a nomlal lipoprotein pattern. Chest x-ray film showed mild cardiomegaly with a suggestion of ...
... axis deviation, left anterior hemiblock and poor R-wave progression in leads V1 through V:<. Laboratory studies gave normal findings, including cholesterol level, which was 230, with triglycesides of 62 and a nomlal lipoprotein pattern. Chest x-ray film showed mild cardiomegaly with a suggestion of ...
- Wiley Online Library
... P = 0.0105), revealing a significant effect. These data suggested a higher risk of death (sudden death), especially in group W, which strictly correlated with an increase in the area under the curve’s T wave (Figure 1C and 1D; the interaction effects between tumour and diet are considered significant; ...
... P = 0.0105), revealing a significant effect. These data suggested a higher risk of death (sudden death), especially in group W, which strictly correlated with an increase in the area under the curve’s T wave (Figure 1C and 1D; the interaction effects between tumour and diet are considered significant; ...
- KoreaMed Synapse
... duration (APD) shortening, the downregulation of L-type Ca2+ channel (ICa-L) caused by atrial cardiomyocyte Ca2+ loading,28,29 downregulation of Ito30 and upregulation of IKACh and IK1.26,27 The ionic current remodeling could reduce the slope of phase 0, hyperpolarize the Vm and reduce the heart rat ...
... duration (APD) shortening, the downregulation of L-type Ca2+ channel (ICa-L) caused by atrial cardiomyocyte Ca2+ loading,28,29 downregulation of Ito30 and upregulation of IKACh and IK1.26,27 The ionic current remodeling could reduce the slope of phase 0, hyperpolarize the Vm and reduce the heart rat ...
Heart transplants
... those with diseases can make full recovery Goal: make heart transplant surgery unnecessary because heart can repair damage itself ...
... those with diseases can make full recovery Goal: make heart transplant surgery unnecessary because heart can repair damage itself ...
Derived copy of Cardiac Cycle
... S4 , S1 , and S2 are referred to by some cardiologists as the Tennessee gallop, because of their similarity to the sound produced by a galloping horse with a dierent gait. A few individuals may have both S3 and S4 , and this combined sound is referred to as S7 . ...
... S4 , S1 , and S2 are referred to by some cardiologists as the Tennessee gallop, because of their similarity to the sound produced by a galloping horse with a dierent gait. A few individuals may have both S3 and S4 , and this combined sound is referred to as S7 . ...
Electrophysiology and Anatomy of Embryonic Rabbit - AJP
... High resolution optical mapping with voltage sensitive dye was first applied to the early tubular embryonic chick heart (19). The electrophysiologic emergence of the cardiac pacemaker was identified but the anatomy of the conductive cells could not be determined as, at that time, there was no specif ...
... High resolution optical mapping with voltage sensitive dye was first applied to the early tubular embryonic chick heart (19). The electrophysiologic emergence of the cardiac pacemaker was identified but the anatomy of the conductive cells could not be determined as, at that time, there was no specif ...
AHA Scientific Statement
... symptoms associated with the medicines, and to advise them of precautions that can be taken.” Additionally, the FDA recommended “that children, adolescents, or adults who are being considered for treatment with ADHD drug products work with their physician or other health care professional to develop ...
... symptoms associated with the medicines, and to advise them of precautions that can be taken.” Additionally, the FDA recommended “that children, adolescents, or adults who are being considered for treatment with ADHD drug products work with their physician or other health care professional to develop ...
PERICARDIAL EFFUSION
... pericardial effusion due to a chemodectoma often require a partial removal of the pericardium to alleviate symptoms. The tumor itself is unlikely to be surgically resectable due to the type of cells tha ...
... pericardial effusion due to a chemodectoma often require a partial removal of the pericardium to alleviate symptoms. The tumor itself is unlikely to be surgically resectable due to the type of cells tha ...
AHA Scientific Statement - CAMP-TUM
... The recommendation for the number of myocardial segments for echocardiography had originally been 20, but was subsequently reduced to 16 segments.6,9 Both the 20- and 16-segment systems were developed mainly for analysis of regional left ventricular wall motion and did not include a true apical myoc ...
... The recommendation for the number of myocardial segments for echocardiography had originally been 20, but was subsequently reduced to 16 segments.6,9 Both the 20- and 16-segment systems were developed mainly for analysis of regional left ventricular wall motion and did not include a true apical myoc ...
Left Superior Vena Cava Persistence in Patients Undergoing
... finding if a left superior approach to the heart is considered. The aim of the study was to evaluate the prevalence of a LSVC in patients undergoing pacemaker (PM) and cardioverter-defibrillator (CD) implantation. Design: We observed the prevalence of LSVC during a 10-year period; each patient under ...
... finding if a left superior approach to the heart is considered. The aim of the study was to evaluate the prevalence of a LSVC in patients undergoing pacemaker (PM) and cardioverter-defibrillator (CD) implantation. Design: We observed the prevalence of LSVC during a 10-year period; each patient under ...
HCAEdge - Microsoft Internet Information Services 8
... Cautionary Note Regarding Forward-looking Statements HCA’s management will be making some forward-looking statements during today’s presentation. Those forward-looking statements are based on management’s current expectations and are subject to risks and uncertainties that may cause those forward l ...
... Cautionary Note Regarding Forward-looking Statements HCA’s management will be making some forward-looking statements during today’s presentation. Those forward-looking statements are based on management’s current expectations and are subject to risks and uncertainties that may cause those forward l ...
Is diastolic heart failure synonyms with heart failure with
... It is critical that LV function, both systolic and diastolic, be measured in every patient with heart failure. The advent of tissue Doppler (and other echo-Doppler techniques) has made it easier and more practical to identify abnormalities in diastolic function. Nonetheless, precise and comprehensiv ...
... It is critical that LV function, both systolic and diastolic, be measured in every patient with heart failure. The advent of tissue Doppler (and other echo-Doppler techniques) has made it easier and more practical to identify abnormalities in diastolic function. Nonetheless, precise and comprehensiv ...
The module has been developed within the framework of the
... At school, but certainly in most university studies, you regularly have to do a survey or study. It will often be useful if you can show a relation between two properties (variables). In this module you will learn how to do this and how to represent such a relation mathematically and calculate how s ...
... At school, but certainly in most university studies, you regularly have to do a survey or study. It will often be useful if you can show a relation between two properties (variables). In this module you will learn how to do this and how to represent such a relation mathematically and calculate how s ...
Cavity of right ventricle
... • The beating of the heart is regulated by the intrinsic conduction (nodal) system • Its function is to ensure that the chambers of the heart contract in the proper rhythm and sequence. • The main center is the sinoatrial (SA) node, located in the right atrium • The atrioventricular (AV) node is loc ...
... • The beating of the heart is regulated by the intrinsic conduction (nodal) system • Its function is to ensure that the chambers of the heart contract in the proper rhythm and sequence. • The main center is the sinoatrial (SA) node, located in the right atrium • The atrioventricular (AV) node is loc ...
Isolated Rupture of the Right Ventricle in a Patient
... surgery and survived the operation without any complication. It is also interesting that the patient did not require aortocoronary bypass closure ...
... surgery and survived the operation without any complication. It is also interesting that the patient did not require aortocoronary bypass closure ...
Do endurance sports affect female hearts differently to male hearts?
... proportion of athletes (30%) showed abnormal geometry but concentric LV hypertrophy was almost solely confined to males whereas females engaging in endurance sports showed a higher prevalence of eccentric LVH compared to males. These results have important clinical implications because they indicate ...
... proportion of athletes (30%) showed abnormal geometry but concentric LV hypertrophy was almost solely confined to males whereas females engaging in endurance sports showed a higher prevalence of eccentric LVH compared to males. These results have important clinical implications because they indicate ...
An Easy Guide To Head To Toe Assessment
... Premature atrial beats (PAB, PAC) [an early, narrow QRS, extra beat originating in the atria, P wave shape may be different] Premature junctional beats (PJB) [an early, narrow QRS, extra beat originating above the A-V node, no P wave] Lethal dysrhythmias: Ventricular escape rhythm (also called ...
... Premature atrial beats (PAB, PAC) [an early, narrow QRS, extra beat originating in the atria, P wave shape may be different] Premature junctional beats (PJB) [an early, narrow QRS, extra beat originating above the A-V node, no P wave] Lethal dysrhythmias: Ventricular escape rhythm (also called ...
cardiac disease - Down Syndrome Ireland
... 7. It should be remembered that despite a normal echo at birth children with Down syndrome, like all other children, can develop symptoms and signs of heart disease at a later age e.g. secondary to airway/respiratory problems,13, 28, 29 and may be at increased risk of developing pulmonary vascular ...
... 7. It should be remembered that despite a normal echo at birth children with Down syndrome, like all other children, can develop symptoms and signs of heart disease at a later age e.g. secondary to airway/respiratory problems,13, 28, 29 and may be at increased risk of developing pulmonary vascular ...
Anatomical Survey: Observation of Physical and Functional
... Just the anatomy of the heart does little to explain how it functions within the cardiovascular system. While anatomy provides details about the structures involved, physiology explains the biochemical and physical mechanisms that give rise to the function of those structures. Cardiac physiology has ...
... Just the anatomy of the heart does little to explain how it functions within the cardiovascular system. While anatomy provides details about the structures involved, physiology explains the biochemical and physical mechanisms that give rise to the function of those structures. Cardiac physiology has ...
receptor blocker
... (specially to patient who concurring the fast heart rate and hypertension ) ...
... (specially to patient who concurring the fast heart rate and hypertension ) ...
Usefulness of the 12-lead electrocardiogram in the follow
... venous system, the QRS complex is often positive (dominant) in lead V1 and the frontal plane QRS axis usually points to the right superior quadrant and occasionally the left superior quadrant. The reported incidence of a dominant R wave in lead V1 during simultaneous biventricular pacing (RV apex) v ...
... venous system, the QRS complex is often positive (dominant) in lead V1 and the frontal plane QRS axis usually points to the right superior quadrant and occasionally the left superior quadrant. The reported incidence of a dominant R wave in lead V1 during simultaneous biventricular pacing (RV apex) v ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.