Phenotyping transgenic embryonic murine hearts using optical
... prior to imaging. The first embryo was removed from the umbilical cord, and the heart was dissected from the body. The excised heart was pinned to silicone between two platinum plates in a pacing chamber filled with oxygenated saline solution. The heart was pinned with the ventral surface facing up, ...
... prior to imaging. The first embryo was removed from the umbilical cord, and the heart was dissected from the body. The excised heart was pinned to silicone between two platinum plates in a pacing chamber filled with oxygenated saline solution. The heart was pinned with the ventral surface facing up, ...
Clinical Medicine Insights: Cardiology Arrhythmogenic Right
... may also involve the left ventricle (LV) and culminate in life-threatening ventricular arrhythmias, prompting sudden cardiac death (SCD) and/or biventricular heart failure.1–5 ARVC/D was first described by the Pope’s physician, Giovanni Maria Lancisi, in his book entitled De Motu Cordis et Aneurysma ...
... may also involve the left ventricle (LV) and culminate in life-threatening ventricular arrhythmias, prompting sudden cardiac death (SCD) and/or biventricular heart failure.1–5 ARVC/D was first described by the Pope’s physician, Giovanni Maria Lancisi, in his book entitled De Motu Cordis et Aneurysma ...
EKG lab
... – impulse vector is from AV node to the bundles to the purkinje fibers – electrical activity through these structures does not result in contraction directly – PR interval is more clinically relevant http://en.wikipedia.org/wiki/File:ECG_principle_s low.gif ...
... – impulse vector is from AV node to the bundles to the purkinje fibers – electrical activity through these structures does not result in contraction directly – PR interval is more clinically relevant http://en.wikipedia.org/wiki/File:ECG_principle_s low.gif ...
Document
... Angina and Myocardial Infarction Nursing Implementation: MI • Ambulatory and Home Care – Resumption of sexual activity ...
... Angina and Myocardial Infarction Nursing Implementation: MI • Ambulatory and Home Care – Resumption of sexual activity ...
Myosin Types and Fiber Types in Cardiac Muscle. III. Nodal
... superior vena cava with the right atrium, is the primary cardiac pacemaker; the AV node, located at the junction of interatrial and interventricular septa, is a region of slow conduction, which regulates the ventricular activation through a gate mechanism on arriving impulses, and of latent pacemake ...
... superior vena cava with the right atrium, is the primary cardiac pacemaker; the AV node, located at the junction of interatrial and interventricular septa, is a region of slow conduction, which regulates the ventricular activation through a gate mechanism on arriving impulses, and of latent pacemake ...
Constrictive Pericarditis: A Case Study
... subjected to the constricting effects of the scarred pericardium, increased pressure can result in cardiac compression or tamponade with resultant hemodynamic deterioration; this entity is known as effusive CP.3,4 In such cases, the constrictive hemodynamics are masked by tamponade and may only beco ...
... subjected to the constricting effects of the scarred pericardium, increased pressure can result in cardiac compression or tamponade with resultant hemodynamic deterioration; this entity is known as effusive CP.3,4 In such cases, the constrictive hemodynamics are masked by tamponade and may only beco ...
Myosin Types and Fiber Types in Cardiac Muscle
... superior vena cava with the right atrium, is the primary cardiac pacemaker; the AV node, located at the junction of interatrial and interventricular septa, is a region of slow conduction, which regulates the ventricular activation through a gate mechanism on arriving impulses, and of latent pacemake ...
... superior vena cava with the right atrium, is the primary cardiac pacemaker; the AV node, located at the junction of interatrial and interventricular septa, is a region of slow conduction, which regulates the ventricular activation through a gate mechanism on arriving impulses, and of latent pacemake ...
Lucía Romero, Esther Pueyo, Martin Fink and Blanca Rodríguez
... preclinical evaluation of drug cardiotoxicity is pivotal to reduce the huge costs of the drug development process since by the time a drug reaches the clinical trial stage, a large number of resources have been devoted to drug development. APD prolongation is considered the main preclinical biomarke ...
... preclinical evaluation of drug cardiotoxicity is pivotal to reduce the huge costs of the drug development process since by the time a drug reaches the clinical trial stage, a large number of resources have been devoted to drug development. APD prolongation is considered the main preclinical biomarke ...
Poor R-Wave Progression
... or V4 and/or the presence of reversed R-wave progression defined as R in V4 , R in V3 or R in V3 , R in V2 or R in V2 , R in V1, or any combination of these.3–5 Both the senior underwriter and the new medical director are concerned about the possibility of a previous anterior myocardial infarction. ...
... or V4 and/or the presence of reversed R-wave progression defined as R in V4 , R in V3 or R in V3 , R in V2 or R in V2 , R in V1, or any combination of these.3–5 Both the senior underwriter and the new medical director are concerned about the possibility of a previous anterior myocardial infarction. ...
Assessment of Left Ventricular Dyssynchrony by Real
... of our institution. Those patients in Killip class III-IV were excluded as well as those referred from other hospitals in which an early transfer to the hospital of origin did not allow following the scheduled imaging diagnostic tests. Diagnosis of ST-segment elevation acute myocardial infarction wa ...
... of our institution. Those patients in Killip class III-IV were excluded as well as those referred from other hospitals in which an early transfer to the hospital of origin did not allow following the scheduled imaging diagnostic tests. Diagnosis of ST-segment elevation acute myocardial infarction wa ...
Left Ventricular Dynamic Geometry in the Intact and Open Chest Dog
... A set of data consisted of an analog recording of simultaneous pressures and ECG for approximately 15 seconds. This 15-second interval included several seconds of synchronized biplane X-ray cineradiographs filmed at 30 frames/sec. We selected this sampling rate because Rankin et al. (1976) reported ...
... A set of data consisted of an analog recording of simultaneous pressures and ECG for approximately 15 seconds. This 15-second interval included several seconds of synchronized biplane X-ray cineradiographs filmed at 30 frames/sec. We selected this sampling rate because Rankin et al. (1976) reported ...
Hypertrophic Cardiomyopathy
... uncommon for thickening to progress after this age • The left ventricle is almost always affected, and in some patients the muscle of the right ventricle also thickens • Hypertrophy is usually greatest in the septum. The muscle thickening in this region may be sufficient to narrow the outflow tract. ...
... uncommon for thickening to progress after this age • The left ventricle is almost always affected, and in some patients the muscle of the right ventricle also thickens • Hypertrophy is usually greatest in the septum. The muscle thickening in this region may be sufficient to narrow the outflow tract. ...
2010 Left ventricular assist device management in patients
... are more sensitive/specific for predicting adverse events is unknown. The low thrombotic event rates discussed above come at increased risks for bleeding complications, even in patients on HeartMate XVE support for whom warfarin is not required. In addition to pharmacologic-induced bleeding diathesi ...
... are more sensitive/specific for predicting adverse events is unknown. The low thrombotic event rates discussed above come at increased risks for bleeding complications, even in patients on HeartMate XVE support for whom warfarin is not required. In addition to pharmacologic-induced bleeding diathesi ...
Cardiopulmonary Resuscitation by Chest Compression Alone: A
... after 4-10 min of resuscitation, irrespective of attempts at ventilation.56,66 Furthermore, ventilation may occur during CO-CPR through active and passive mechanisms. After a non-hypoxic cardiac arrest, patients usually continue to breath actively for some short period, before the respiratory centre ...
... after 4-10 min of resuscitation, irrespective of attempts at ventilation.56,66 Furthermore, ventilation may occur during CO-CPR through active and passive mechanisms. After a non-hypoxic cardiac arrest, patients usually continue to breath actively for some short period, before the respiratory centre ...
Pansystolic murmur in the newborn: tricuspid regurgitation versus
... by the admitting nurse, including cardiac auscultation, and by a paediatric resident at once if there was any evidence of distress, but in any case by 12 hours of age. Nursing staff auscultated for heart rate at four hour intervals until the infant was stable, and at eight hour intervals thereafter. ...
... by the admitting nurse, including cardiac auscultation, and by a paediatric resident at once if there was any evidence of distress, but in any case by 12 hours of age. Nursing staff auscultated for heart rate at four hour intervals until the infant was stable, and at eight hour intervals thereafter. ...
Imaging and visualization of 3-D cardiac electric activity
... have studied electrocardiographic inverse solutions, which attempt to mathematically reconstruct the equivalent source distribution of cardiac bioelectrical activity. Cardiac electrical sources have been modeled by a single dipole [26] and multiple dipoles [26]–[29], multipoles [30], heart-surface i ...
... have studied electrocardiographic inverse solutions, which attempt to mathematically reconstruct the equivalent source distribution of cardiac bioelectrical activity. Cardiac electrical sources have been modeled by a single dipole [26] and multiple dipoles [26]–[29], multipoles [30], heart-surface i ...
Echocardiographic Determination of Contraction and
... ratio of preejection period to left ventricular ejection time and shortening fraction during the first year were statistically similar to those of the controls. Shortening fraction decreased slightly during the second year and became significantly different from the control, but remained within the ...
... ratio of preejection period to left ventricular ejection time and shortening fraction during the first year were statistically similar to those of the controls. Shortening fraction decreased slightly during the second year and became significantly different from the control, but remained within the ...
Using the Surface Electrocardiogram to Localize the Origin of
... right bundle branch block (RBBB) configuration, while VT exiting from the interventricular septum or right ventricle displays a left bundle branch block (LBBB) configuration. Second, septal exits are associated with narrower QRS complexes consistent with synchronous rather than sequential ventricula ...
... right bundle branch block (RBBB) configuration, while VT exiting from the interventricular septum or right ventricle displays a left bundle branch block (LBBB) configuration. Second, septal exits are associated with narrower QRS complexes consistent with synchronous rather than sequential ventricula ...
Hospitalisation-leading cardiac arrhythmias in Portugal
... Table 5 – Number of hospitalisations with Hypertension, Obesity, Hyperlipidemia, Chronic Kidney Disease (CKD), Hyperthyroidism or Diabetes Mellitus (DM) as secondary diagnoses, per a hundred thousand hospitalisations due to cardiac arrhythmias and per NUT II region. ...
... Table 5 – Number of hospitalisations with Hypertension, Obesity, Hyperlipidemia, Chronic Kidney Disease (CKD), Hyperthyroidism or Diabetes Mellitus (DM) as secondary diagnoses, per a hundred thousand hospitalisations due to cardiac arrhythmias and per NUT II region. ...
Heart failure with normal ejection fraction (HFNEF)
... Tissue Doppler imaging (TDI) is a novel technique, which allows analysis of global diastolic and systolic velocities of the myocardial wall. The E’ wave is the peak velocity of early diastolic myocardial lengthening, recorded at the mitral annulus. When combined with the E wave, measured with conven ...
... Tissue Doppler imaging (TDI) is a novel technique, which allows analysis of global diastolic and systolic velocities of the myocardial wall. The E’ wave is the peak velocity of early diastolic myocardial lengthening, recorded at the mitral annulus. When combined with the E wave, measured with conven ...
Part b
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
Tissier
... The aim of this article is to describe original adverse effects in two dogs chronically treated with the inodilator pimobendan. We report a German shepherd (i.e., dog 1) and a poodle (i.e., dog 2) that were referred to our cardiology unit after receiving pimobendan for 10 and 5 mo, respectively. In ...
... The aim of this article is to describe original adverse effects in two dogs chronically treated with the inodilator pimobendan. We report a German shepherd (i.e., dog 1) and a poodle (i.e., dog 2) that were referred to our cardiology unit after receiving pimobendan for 10 and 5 mo, respectively. In ...
S0735109711008886_mmc1
... period. Finally, a group of mice were given nitrate supplementation alone for the entire 13-day experimental period (Nitrate group; n=8). We adopted the oral dose of NaNO3 that was previously shown to be cardioprotective against ischemia-reperfusion injury in vivo (24). Five days later (i.e. on Day ...
... period. Finally, a group of mice were given nitrate supplementation alone for the entire 13-day experimental period (Nitrate group; n=8). We adopted the oral dose of NaNO3 that was previously shown to be cardioprotective against ischemia-reperfusion injury in vivo (24). Five days later (i.e. on Day ...
Ventricular Dimensions - Journal of Clinical Investigation
... placement with a Starr-Edwards prosthesis in one, and mitral valvulotomy in two patients. At the time of cardiac operation small silver-tantalum markers were sutured to the right ventricle in seven patients, the left ventricle in two patients, and to the surface of both ventricles in two patients, a ...
... placement with a Starr-Edwards prosthesis in one, and mitral valvulotomy in two patients. At the time of cardiac operation small silver-tantalum markers were sutured to the right ventricle in seven patients, the left ventricle in two patients, and to the surface of both ventricles in two patients, a ...
Effects of exercise training on left ventricular volumes
... The aforementioned studies have used echocardiography and MRI to assess the remodeling process after an infarction. Echocardiography provides an assessment of cardiac motion in terms of radial displacement and systolic shortening, and standard MRI permits the measurement of more precise and specific ...
... The aforementioned studies have used echocardiography and MRI to assess the remodeling process after an infarction. Echocardiography provides an assessment of cardiac motion in terms of radial displacement and systolic shortening, and standard MRI permits the measurement of more precise and specific ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.