Arrhythmogenic right ventricular cardiomyopathy associated with
... cardiac death. The remarkable interest in this cardiomyopathy is associated with difficulty in early clinical diagnosis, and its propensity to cause sudden death in apparently healthy patients. Regarding feline ARVC, the disease was described for the first time by Fox et al. in 2000.2 This report co ...
... cardiac death. The remarkable interest in this cardiomyopathy is associated with difficulty in early clinical diagnosis, and its propensity to cause sudden death in apparently healthy patients. Regarding feline ARVC, the disease was described for the first time by Fox et al. in 2000.2 This report co ...
1 introduction - Jyväskylän yliopisto
... ventricular muscle, and specialized excitatory and conductive muscle fibers. The atrial and ventricular muscles contract similarly with the skeletal muscle, except the duration of the contraction being much longer. On the other hand, the specialized excitatory and conductive muscle fibers contract o ...
... ventricular muscle, and specialized excitatory and conductive muscle fibers. The atrial and ventricular muscles contract similarly with the skeletal muscle, except the duration of the contraction being much longer. On the other hand, the specialized excitatory and conductive muscle fibers contract o ...
Association of Left Ventricular Dilation at Listing for Heart Transplant
... Blood Institute since 1994. Two cohorts of children (younger than 18 years of age at diagnosis) were established: (1) a population-based, prospective cohort of children diagnosed after January 1, 1996, by pediatric cardiologists at 98 pediatric cardiac centers in 2 geographically distinct regions of ...
... Blood Institute since 1994. Two cohorts of children (younger than 18 years of age at diagnosis) were established: (1) a population-based, prospective cohort of children diagnosed after January 1, 1996, by pediatric cardiologists at 98 pediatric cardiac centers in 2 geographically distinct regions of ...
Heart Failure with Preserved Ejection Fraction
... United States, and high mortality, with one-half of these patients likely to die within 5 years. Substantial increases in the incidence and costs associated with this disease have occurred; its sequelae: in 2010, $40 billion was spent on health care related to HF, with about 300,000 deaths in the Un ...
... United States, and high mortality, with one-half of these patients likely to die within 5 years. Substantial increases in the incidence and costs associated with this disease have occurred; its sequelae: in 2010, $40 billion was spent on health care related to HF, with about 300,000 deaths in the Un ...
Transplant of stunned donor hearts rescued by pharmacological
... wall motion score index was calculated by summing the scores and dividing the sum by 17. By definition, donors with abnormal stress echocardiographic results had fixed wall motion abnormalities and/or stress-induced wall motion abnormalities. We also considered changes in LV volumes as an index of g ...
... wall motion score index was calculated by summing the scores and dividing the sum by 17. By definition, donors with abnormal stress echocardiographic results had fixed wall motion abnormalities and/or stress-induced wall motion abnormalities. We also considered changes in LV volumes as an index of g ...
Medical Gross Anatomy - University of Michigan
... The sympathetic innervation of the heart originates from the thoracic portion (T1-T4 or T5) of the spinal cord. These presynaptic fibers first travel to either the cervical (superior, middle or inferior) or the thoracic ganglia of the sympathetic chain, where they synapse. The postsynaptic fibers em ...
... The sympathetic innervation of the heart originates from the thoracic portion (T1-T4 or T5) of the spinal cord. These presynaptic fibers first travel to either the cervical (superior, middle or inferior) or the thoracic ganglia of the sympathetic chain, where they synapse. The postsynaptic fibers em ...
ACC/AHA Practice Guidelines
... Several methods of heart rate adjustment have been proposed to increase the diagnostic accuracy of the exercise ECG. The maximal slope of the ST segment relative to heart rate is derived either manually (1) or by computer (2). A second technique, termed the ST/HR index, divides the difference betwee ...
... Several methods of heart rate adjustment have been proposed to increase the diagnostic accuracy of the exercise ECG. The maximal slope of the ST segment relative to heart rate is derived either manually (1) or by computer (2). A second technique, termed the ST/HR index, divides the difference betwee ...
Valentin Fuster and Sidney C. Smith, Jr Joseph S. Alpert, Gabriel
... be due to AV block. (Level of Evidence: C) b. Arrhythmias and other medical conditions that require drugs that result in symptomatic bradycardia. (Level of Evidence: C) c. Documented periods of asystole greater than or equal to 3.0 seconds or any escape rate less than 40 beats per minute (bpm) in aw ...
... be due to AV block. (Level of Evidence: C) b. Arrhythmias and other medical conditions that require drugs that result in symptomatic bradycardia. (Level of Evidence: C) c. Documented periods of asystole greater than or equal to 3.0 seconds or any escape rate less than 40 beats per minute (bpm) in aw ...
Magnificent Magnesium
... longer. Unstable angina symptoms can occur even at times of rest. Because unstable angina is often a precursor and warning sign of a heart attack, prompt medical attention should be sought at the first sign of unstable angina. Angina can be diagnosed using a number of tools. An electrocardiogram (EK ...
... longer. Unstable angina symptoms can occur even at times of rest. Because unstable angina is often a precursor and warning sign of a heart attack, prompt medical attention should be sought at the first sign of unstable angina. Angina can be diagnosed using a number of tools. An electrocardiogram (EK ...
Cecilia A. Riquelme , 528 (2011); DOI: 10.1126/science.1210558
... fetal gene program activation (4, 5). Unlike pathological cardiac hypertrophy, this adaptive hypertrophy does not appear to be detrimental to cardiac function. In fact, exercise-induced physiological cardiac growth protects the heart against pathological stimuli such as pressure overload (6). The in ...
... fetal gene program activation (4, 5). Unlike pathological cardiac hypertrophy, this adaptive hypertrophy does not appear to be detrimental to cardiac function. In fact, exercise-induced physiological cardiac growth protects the heart against pathological stimuli such as pressure overload (6). The in ...
Heart Rate Variability in Athletes
... (RR-intervals) that are usually analysed in time and frequency domains. As a first approach, it can be assumed that power in different frequency bands corresponds to activity of sympathetic (0.04–0.15Hz) and parasympathetic (0.15–0.4Hz) nerves. However, other mechanisms (and feedback loops) are also ...
... (RR-intervals) that are usually analysed in time and frequency domains. As a first approach, it can be assumed that power in different frequency bands corresponds to activity of sympathetic (0.04–0.15Hz) and parasympathetic (0.15–0.4Hz) nerves. However, other mechanisms (and feedback loops) are also ...
general examination and the pulse
... diastolic blood pressure. A collapsing pulse is thus best ascertained by taking the blood pressure and finding a wide pulse pressure. However, it is tradition ally appreciated by raising the arm while monitoring the pulse, and feeling a force ful jerk of brief duration with several fingers. Someti ...
... diastolic blood pressure. A collapsing pulse is thus best ascertained by taking the blood pressure and finding a wide pulse pressure. However, it is tradition ally appreciated by raising the arm while monitoring the pulse, and feeling a force ful jerk of brief duration with several fingers. Someti ...
ANGINA PECTORIS TREATMENT
... In severe coronary artery disease (CAD) e.g. left main coronary artery or triple vessel disease (LAD, circumflex, right coronary artery) with left ventricle function impairment CABG is preferred over PCI in diabetes when there is coronary artery disease with triple vessel disease ...
... In severe coronary artery disease (CAD) e.g. left main coronary artery or triple vessel disease (LAD, circumflex, right coronary artery) with left ventricle function impairment CABG is preferred over PCI in diabetes when there is coronary artery disease with triple vessel disease ...
Tonic Influence of the Sympathetic Nervous System on Myocardial
... were sutured to the right atrium about 2 cm apart. All lead wires and the left atrial catheter were brought out of the chest and tunneled to the dorsal surface of the neck where they exited from the skin. The chest incision was closed and the dog was allowed to recover. Studies were started 3-4 week ...
... were sutured to the right atrium about 2 cm apart. All lead wires and the left atrial catheter were brought out of the chest and tunneled to the dorsal surface of the neck where they exited from the skin. The chest incision was closed and the dog was allowed to recover. Studies were started 3-4 week ...
ischemi̇c heart 2013
... Ischemic heart disease (IHD) is the generic designation for a group of closely related syndromes resulting from ischemia– an imbalance between the supply and demand of the heart for oxygenated blood. ...
... Ischemic heart disease (IHD) is the generic designation for a group of closely related syndromes resulting from ischemia– an imbalance between the supply and demand of the heart for oxygenated blood. ...
Echocardiography Cardio
... measured. A single crystal is used to transmit an ultrasound signal and then to receive after a pre-set time delay. Reflected signals are only recorded from a depth corresponding to half the product of the time delay and the speed of sound in tissues (1540m/s). By combining this technique with 2-D i ...
... measured. A single crystal is used to transmit an ultrasound signal and then to receive after a pre-set time delay. Reflected signals are only recorded from a depth corresponding to half the product of the time delay and the speed of sound in tissues (1540m/s). By combining this technique with 2-D i ...
LA RM NELLA DIAGNOSI DIFFERENZIALE DELLA MIOCARDITE IN
... of CMR in myocarditis which led the establishment of the Lake Louise diagnostic criteria 3. In particular, the CMR findings are consistent with the diagnosis of myocarditis if two of three sequences demonstrating myocardial edema, hyperemia, and fibrosis are positive. These criteria offer also an op ...
... of CMR in myocarditis which led the establishment of the Lake Louise diagnostic criteria 3. In particular, the CMR findings are consistent with the diagnosis of myocarditis if two of three sequences demonstrating myocardial edema, hyperemia, and fibrosis are positive. These criteria offer also an op ...
Noninvasive evaluation of right atrial function in - diss.fu
... myocardial function. To our knowledge the present study is the first report on evaluation of the right atrial function in patients with congenital heart disease using echocardiography and tissue Doppler imaging. Our results show that right atrial pump function is unchanged under right ventricular vo ...
... myocardial function. To our knowledge the present study is the first report on evaluation of the right atrial function in patients with congenital heart disease using echocardiography and tissue Doppler imaging. Our results show that right atrial pump function is unchanged under right ventricular vo ...
Cardiorespiratory Response to Exercise Transposition of the Great
... nosis despite an efficient atrioseptostomy of Rashkind-Miller). It may be that submitting the right ventricle early to conditions of systemic load leads to better long-term tolerance, with exercise capacities similar to those in patients operated on with an arterial switch technique.26 The ventilato ...
... nosis despite an efficient atrioseptostomy of Rashkind-Miller). It may be that submitting the right ventricle early to conditions of systemic load leads to better long-term tolerance, with exercise capacities similar to those in patients operated on with an arterial switch technique.26 The ventilato ...
Regional Wall Motion Abnormalities During Early Diastole in
... study. All patients were receiving one or more antihypertensive drugs. Medications included calcium-channel antagonists, angiotensin converting enzyme inhibitors, or alpha-channel blockers, but no patients received any drugs with inotropic properties, such as beta-adrenergic blockers or stimulants, ...
... study. All patients were receiving one or more antihypertensive drugs. Medications included calcium-channel antagonists, angiotensin converting enzyme inhibitors, or alpha-channel blockers, but no patients received any drugs with inotropic properties, such as beta-adrenergic blockers or stimulants, ...
Early mitral deceleration and left atrial stiffness - AJP
... AT&T). Mitral valve area was then calculated assuming a circular shape according to the following formula: ⫻ D2/4, where D is the mediolateral diameter of the mitral anulus in early diastole. Synchronized LA and radial pressures and Doppler recordings were then digitized from selected video frames ...
... AT&T). Mitral valve area was then calculated assuming a circular shape according to the following formula: ⫻ D2/4, where D is the mediolateral diameter of the mitral anulus in early diastole. Synchronized LA and radial pressures and Doppler recordings were then digitized from selected video frames ...
Avoiding Untimely Implantable Cardioverter/Defibrillator
... 2016 were analyzed retrospectively. The study complies with the Declaration of Helsinki, and patients gave written informed consent approved by the local ethics committee. Patients with newly diagnosed LVEF ≤35% were included in the study. At discharge, patients and treating physicians/ cardiologist ...
... 2016 were analyzed retrospectively. The study complies with the Declaration of Helsinki, and patients gave written informed consent approved by the local ethics committee. Patients with newly diagnosed LVEF ≤35% were included in the study. At discharge, patients and treating physicians/ cardiologist ...
Non-invasive Measurement of Cardiac Output and
... Teflon cannula was inserted into the antecubital vein of each arm. Thirty minutes after arriving at the laboratory the subject sat on the exercise bicycle. After a further 5 min the resting radionuclide scan was performed using the cannula in the right arm for the bolus injection (see below). There ...
... Teflon cannula was inserted into the antecubital vein of each arm. Thirty minutes after arriving at the laboratory the subject sat on the exercise bicycle. After a further 5 min the resting radionuclide scan was performed using the cannula in the right arm for the bolus injection (see below). There ...
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.