Increased plasma arginine vasopressin levels in patients
... or 2 additional days while not taking medication and awaiting hemodynamic study. The range of differences between vasopressin values for the multiple day determinations was ot04.2 pg/ml with an average change of 12.9%. Differences among multiple day values were not significant by analysis of varianc ...
... or 2 additional days while not taking medication and awaiting hemodynamic study. The range of differences between vasopressin values for the multiple day determinations was ot04.2 pg/ml with an average change of 12.9%. Differences among multiple day values were not significant by analysis of varianc ...
4528-Review
... The MI size on cMRI was determined in consensus by three authors with the built-in software of Siemens workstation (SyngoMR A30). To facilitate cardiac morphometric comparisons with different imaging methods, the dimension was calculated as a value relative to the entire left ventricular myocardium. ...
... The MI size on cMRI was determined in consensus by three authors with the built-in software of Siemens workstation (SyngoMR A30). To facilitate cardiac morphometric comparisons with different imaging methods, the dimension was calculated as a value relative to the entire left ventricular myocardium. ...
Atrial Electrophysiological Remodeling and Fibrillation in Heart Failure
... and calsequestrin levels were reduced.32 In contrast to these findings, in the ovine model of tachypacing-induced HF (mean period of tachypacing: ∼33 days), the [Ca 2+]i transient amplitude and the density of ICaL were both reduced, the atrial SR content was increased, and the [Ca 2+]i amplitude was ...
... and calsequestrin levels were reduced.32 In contrast to these findings, in the ovine model of tachypacing-induced HF (mean period of tachypacing: ∼33 days), the [Ca 2+]i transient amplitude and the density of ICaL were both reduced, the atrial SR content was increased, and the [Ca 2+]i amplitude was ...
Lone Atrial Fibrillation: Risk Factors, Triggers And Ablation
... in LAF patients has been described in several studies. In a follow-up study Weijs et al showed that clinical important CAD occurred twice as often in LAF patients compared to controls. Furthermore, LAF patients were younger at the time of onset and developed a more severe disease profile (heart fail ...
... in LAF patients has been described in several studies. In a follow-up study Weijs et al showed that clinical important CAD occurred twice as often in LAF patients compared to controls. Furthermore, LAF patients were younger at the time of onset and developed a more severe disease profile (heart fail ...
Electrocardiographic Characteristics and SCN5A Mutations in
... Key Words: arrhythmia 䡲 sodium channel 䡲 electrophysiology 䡲 genetics 䡲 mutations ...
... Key Words: arrhythmia 䡲 sodium channel 䡲 electrophysiology 䡲 genetics 䡲 mutations ...
The Sequence of Normal Recovery of Excitability in the
... longer than those at the ventricular base and the left side of the interveiitricular septum had longer refractory periods than those of the right side. In each of these instances, the area normally activated earliest had the longer refractory period. A similar organization of recovery properties was ...
... longer than those at the ventricular base and the left side of the interveiitricular septum had longer refractory periods than those of the right side. In each of these instances, the area normally activated earliest had the longer refractory period. A similar organization of recovery properties was ...
The role of the pericardium in the valveless, tubular heart of the
... A numerical model of an elastic heart tube connected to a nearly rigid racetrack was constructed to study flow through the Ciona heart. The racetrack design was used for easy comparison to previous models of tubular heart pumping (Jung and Peskin, 2001; Hickerson et al., 2005; Baird et al., 2014; Av ...
... A numerical model of an elastic heart tube connected to a nearly rigid racetrack was constructed to study flow through the Ciona heart. The racetrack design was used for easy comparison to previous models of tubular heart pumping (Jung and Peskin, 2001; Hickerson et al., 2005; Baird et al., 2014; Av ...
PDF
... detrimental. However, many species, such as diving birds, mammals, and even human beings, have adapted to withstand hypoxia or anoxia for longer periods (18). One of the most important physiological adaptations that allow these animals to withstand the lack of oxygen during apnea is the diving refle ...
... detrimental. However, many species, such as diving birds, mammals, and even human beings, have adapted to withstand hypoxia or anoxia for longer periods (18). One of the most important physiological adaptations that allow these animals to withstand the lack of oxygen during apnea is the diving refle ...
Evidence of Incomplete Left Ventricular Relaxation in the Dog
... ordinates were digitized at 4.0-ms intervals along this portion of the curve and were plotted on-line as (lnP, t). In some beats dP/dt after maximal negative dPldt was constant at or near its minimal value for 10-20 ms, and thereafter increased toward zero continuously. In these beats digitization o ...
... ordinates were digitized at 4.0-ms intervals along this portion of the curve and were plotted on-line as (lnP, t). In some beats dP/dt after maximal negative dPldt was constant at or near its minimal value for 10-20 ms, and thereafter increased toward zero continuously. In these beats digitization o ...
Upregulation of Heat Shock Transcription Factor 1 Plays a Critical
... To elucidate the role of HSF1 in cardiac hypertrophy, we established the cardiac hypertrophy model by TAC in transgenic mice that express constitutively active HSF115 and analyzed them 5 weeks after the operation. We also performed the same operation in their wild-type littermates as controls. Expre ...
... To elucidate the role of HSF1 in cardiac hypertrophy, we established the cardiac hypertrophy model by TAC in transgenic mice that express constitutively active HSF115 and analyzed them 5 weeks after the operation. We also performed the same operation in their wild-type littermates as controls. Expre ...
Triphasic mitral inflow velocity with mid
... Abstract Mitral inflow filling pattern usually consists of 2 forward flow velocities in sinus rhythm: early rapid filling (E ) and late filling with atrial contraction (A). However, additional mid-diastolic flow velocity may be present resulting in triphasic mitral inflow filling pattern. When mitra ...
... Abstract Mitral inflow filling pattern usually consists of 2 forward flow velocities in sinus rhythm: early rapid filling (E ) and late filling with atrial contraction (A). However, additional mid-diastolic flow velocity may be present resulting in triphasic mitral inflow filling pattern. When mitra ...
The DAVID (Dual Chamber and VVI Implantable Defibrillator) II Trial
... rameters and events and verbal assessment of the patient’s condition. Remote or in-person implantable defibrillator interrogations were also performed when patients received a shock therapy. Death, possible heart failure hospitalization, serious complications related to the device, leads, or medicat ...
... rameters and events and verbal assessment of the patient’s condition. Remote or in-person implantable defibrillator interrogations were also performed when patients received a shock therapy. Death, possible heart failure hospitalization, serious complications related to the device, leads, or medicat ...
Jugular Venous Pulse: Window into the Right Heart
... If the venous pulsation is not observed initially, it may be either too high or too low. The position of the neck relative to the right atrium should be elevated or lowered accordingly. In patients with extremely high central venous pressure, the waveform may be best observed with the patient sittin ...
... If the venous pulsation is not observed initially, it may be either too high or too low. The position of the neck relative to the right atrium should be elevated or lowered accordingly. In patients with extremely high central venous pressure, the waveform may be best observed with the patient sittin ...
Pulmonary Hypertension - American Thoracic Society
... in the 1940s. In 1951, the entity “primary pulmonary hypertension” was accurately described. A major advance was the development of Doppler echocardiography, which allowed noninvasive imaging of the right ventricle and estimation of pulmonary artery pressure. The discovery that calcium channel block ...
... in the 1940s. In 1951, the entity “primary pulmonary hypertension” was accurately described. A major advance was the development of Doppler echocardiography, which allowed noninvasive imaging of the right ventricle and estimation of pulmonary artery pressure. The discovery that calcium channel block ...
Full Text:PDF - The Turkish Journal of Pediatrics
... solitus with atrioventricular concordance, but rarely seen in situs inversus totalis with atrioventricular concordance or discordance4. There are very few cases of DOLV with atrioventricular discordance 6,7 . The conal anatomy is also variable. The most common anatomy is near normal deficiency of su ...
... solitus with atrioventricular concordance, but rarely seen in situs inversus totalis with atrioventricular concordance or discordance4. There are very few cases of DOLV with atrioventricular discordance 6,7 . The conal anatomy is also variable. The most common anatomy is near normal deficiency of su ...
Review Article Heart failure with preserved ejection fraction
... occurs with atrial contraction and is represented by the measured A wave. In a healthy individual the E wave is bigger than A with a ratio of at least > 1. This ratio is reduced to < 1 in impaired relaxation when E wave shortens and LV filling becomes more dependent on stronger atrial contraction, i ...
... occurs with atrial contraction and is represented by the measured A wave. In a healthy individual the E wave is bigger than A with a ratio of at least > 1. This ratio is reduced to < 1 in impaired relaxation when E wave shortens and LV filling becomes more dependent on stronger atrial contraction, i ...
Appropriateness Criteria for Stress Echocardiography
... An appropriate imaging study is one in which the expected incremental information, combined with clinical judgment, exceeds the expected negative consequences* by a sufficiently wide margin for a specific indication that the procedure is generally considered acceptable care and a reasonable approach ...
... An appropriate imaging study is one in which the expected incremental information, combined with clinical judgment, exceeds the expected negative consequences* by a sufficiently wide margin for a specific indication that the procedure is generally considered acceptable care and a reasonable approach ...
PDF-1 - RUcore - Rutgers University
... bundle, Bachmann’s bundle, bundle of His, and the Purkinje fibers. Electrical activity in the heart caused by the depolarization and propagation of action potentials first initiated at the SA node. The SA node typically serves as the cardiac pacemaker that propagates action potentials to the Bachman ...
... bundle, Bachmann’s bundle, bundle of His, and the Purkinje fibers. Electrical activity in the heart caused by the depolarization and propagation of action potentials first initiated at the SA node. The SA node typically serves as the cardiac pacemaker that propagates action potentials to the Bachman ...
cardiac muscle cells
... right ventricle enlarges and resistance to blood flow from the right ventricle to the lungs is increased. Resistance may be increased by a severe, long-standing lung disorder, such as emphysema or pulmonary hypertension, or by narrowing of the pulmonary valve (pulmonary stenosis). To compensate, the ...
... right ventricle enlarges and resistance to blood flow from the right ventricle to the lungs is increased. Resistance may be increased by a severe, long-standing lung disorder, such as emphysema or pulmonary hypertension, or by narrowing of the pulmonary valve (pulmonary stenosis). To compensate, the ...
CCS Consensus Cover.qxd
... The following recommendations apply to recurrent AF outside the setting of reversible causes. Anticoagulation should be used according to subsequent sections of these guidelines, regardless of whether a rate control or rhythm control approach is used. The recommendations are based on a primarily pha ...
... The following recommendations apply to recurrent AF outside the setting of reversible causes. Anticoagulation should be used according to subsequent sections of these guidelines, regardless of whether a rate control or rhythm control approach is used. The recommendations are based on a primarily pha ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.