Coupled systolic-ventricular and vascular stiffening with age
... Age-dependent ventricular-vascular stiffening. Aortic PP and Ea both significantly increased with age (p , 0.008; Fig. 2), supporting age-dependent pulsatile load increase. As expected from its defining equation, Ea correlated with peripheral resistance and heart rate, but also varied with arterial ...
... Age-dependent ventricular-vascular stiffening. Aortic PP and Ea both significantly increased with age (p , 0.008; Fig. 2), supporting age-dependent pulsatile load increase. As expected from its defining equation, Ea correlated with peripheral resistance and heart rate, but also varied with arterial ...
Limiting Infarct Size in ST-Segment Myocardial Infarction
... myocardial infarction in patients with ST-segment elevation: insights from the Assessment of the Safety and Efficacy of a New Thrombolytic ...
... myocardial infarction in patients with ST-segment elevation: insights from the Assessment of the Safety and Efficacy of a New Thrombolytic ...
Atrial fibrillation in women
... to find potential targets for future AF therapies, and improve AF prevention in both women and men. Keywords: atrial fibrillation n epidemiology n gender differences n management n presentation n risk factors n women ...
... to find potential targets for future AF therapies, and improve AF prevention in both women and men. Keywords: atrial fibrillation n epidemiology n gender differences n management n presentation n risk factors n women ...
Atrial transport function in coronary artery disease: Relation
... mining left ventricular volumes because of poor contrast cine films or instances of two consecutive beats preceded by a ventricular premature beat. Furthermore , patients were excluded if the various phases of filling during diastole could not be delineated (see later). This invariably necessitated ...
... mining left ventricular volumes because of poor contrast cine films or instances of two consecutive beats preceded by a ventricular premature beat. Furthermore , patients were excluded if the various phases of filling during diastole could not be delineated (see later). This invariably necessitated ...
pdf Sprint Quattro Portfolio Brochure ()
... indicated for use in the above patients with atrial tachyarrhythmias, or those patients who are at significant risk of developing atrial tachyarrhythmias. SureScan CRT-D systems are indicated for ventricular antitachycardia pacing and ventricular defibrillation for automated treatment of life-threat ...
... indicated for use in the above patients with atrial tachyarrhythmias, or those patients who are at significant risk of developing atrial tachyarrhythmias. SureScan CRT-D systems are indicated for ventricular antitachycardia pacing and ventricular defibrillation for automated treatment of life-threat ...
left ventricular endocardial longitudinal and transverse changes during
... published February 11, 2005; doi:10.1152/ajpheart.00867.2004.—Left ventricular (LV) longitudinal and transverse geometric changes during isovolumic contraction and relaxation are still controversial. This confusion is compounded by traditional definitions of these phases of the cardiac cycle. High-r ...
... published February 11, 2005; doi:10.1152/ajpheart.00867.2004.—Left ventricular (LV) longitudinal and transverse geometric changes during isovolumic contraction and relaxation are still controversial. This confusion is compounded by traditional definitions of these phases of the cardiac cycle. High-r ...
Postoperative Atrial Fibrillation Following Open Cardiac Surgery
... the mortality and morbidity and consequently leads to a longer hospital stay, and more use of resources, driving up the cost of care.10,11 This prospective study was conducted to determine the incidence of postoperative AF in patients undergoing a variety of open cardiac surgery procedures and ident ...
... the mortality and morbidity and consequently leads to a longer hospital stay, and more use of resources, driving up the cost of care.10,11 This prospective study was conducted to determine the incidence of postoperative AF in patients undergoing a variety of open cardiac surgery procedures and ident ...
Which Is The Appropriate Arrhythmia Burden To Offer RF
... from the RVOT. The initial mean LV systolic function in this patient population was 35%, which improved by at least 15% or normalized after succesful RF ablation, defined as suppression of the PVC burden >80%. The PVC burden was significantly higher in patients with suppressed LV systolic function c ...
... from the RVOT. The initial mean LV systolic function in this patient population was 35%, which improved by at least 15% or normalized after succesful RF ablation, defined as suppression of the PVC burden >80%. The PVC burden was significantly higher in patients with suppressed LV systolic function c ...
Dysrhythmia Recognition lecture
... There may be a P wave following the QRS, usually P wave is absent QRS complexes are wide and bizarre in appearance, measuring 0.12 seconds or greater o T wave in opposite direction of QRS o Multi-focal will look different than other PVC’s May be a compensatory pause following the premature beat Vent ...
... There may be a P wave following the QRS, usually P wave is absent QRS complexes are wide and bizarre in appearance, measuring 0.12 seconds or greater o T wave in opposite direction of QRS o Multi-focal will look different than other PVC’s May be a compensatory pause following the premature beat Vent ...
Non-invasive assessment of cardiac physiology by
... appropriate gain settings and filters were used to maintain optimal colouring of the myocardium. The Doppler velocity range (0-14 cm . s~') was adjusted to encompass all myocardial colour velocities, and because the shades are dependent on the set up of the tissue Doppler echocardiographic velocity, ...
... appropriate gain settings and filters were used to maintain optimal colouring of the myocardium. The Doppler velocity range (0-14 cm . s~') was adjusted to encompass all myocardial colour velocities, and because the shades are dependent on the set up of the tissue Doppler echocardiographic velocity, ...
Non-invasive assessment of cardiac physiology by tissue Doppler
... characteristic patterns of myocardial velocities within systole and diastole which are not well understood. Aim The purpose of this study was to determine the relationship of myocardial velocity patterns, as assessed by tissue Doppler echocardiography, to the contraction and relaxation phases of the ...
... characteristic patterns of myocardial velocities within systole and diastole which are not well understood. Aim The purpose of this study was to determine the relationship of myocardial velocity patterns, as assessed by tissue Doppler echocardiography, to the contraction and relaxation phases of the ...
Multi-contrast late enhancement CMR determined gray zone and
... © 2013 Yang et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original wo ...
... © 2013 Yang et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original wo ...
EpiCast Report: Atrial Fibrillation - Epidemiology Forecast to 2023 Brochure
... Atrial fibrillation (AF) is a disorder of the heart’s electrical system. The condition is characterized by an irregular heart rhythm that is either too fast or too slow. During AF, the two upper chambers of the heart (atria) beat out of coordination with the two lower chambers (ventricles) due to di ...
... Atrial fibrillation (AF) is a disorder of the heart’s electrical system. The condition is characterized by an irregular heart rhythm that is either too fast or too slow. During AF, the two upper chambers of the heart (atria) beat out of coordination with the two lower chambers (ventricles) due to di ...
A Sketch-based Interface for Modeling Myocardial Fiber Orientation
... Finally, our technique of deforming volumetric models allows the user to obtain a variety of heart models with different 3D shapes effortlessly by deforming a single base model with predefined parameters. This makes it much easier to study the influence of the morphological change in the ventricles ...
... Finally, our technique of deforming volumetric models allows the user to obtain a variety of heart models with different 3D shapes effortlessly by deforming a single base model with predefined parameters. This makes it much easier to study the influence of the morphological change in the ventricles ...
Diastolic Heart Failure Demystified - CHEST Journal
... The mystery of diastolic heart failure (DHF), described by authorities as a “puzzle” and a “clinical paradox,” stems from the following misperception: (1) that the normal ejection fraction implies normal cardiac output (CO), (2) that therefore low CO is not operative (it is rarely mentioned in relat ...
... The mystery of diastolic heart failure (DHF), described by authorities as a “puzzle” and a “clinical paradox,” stems from the following misperception: (1) that the normal ejection fraction implies normal cardiac output (CO), (2) that therefore low CO is not operative (it is rarely mentioned in relat ...
Guidelines for the diagnosis and management of Brugada Syndrome
... There is consensus that the risk of life threatening arrhythmias in asymptomatic patients who only have spontaneous Type 1 ECG changes is moderate, between 0.24 and 1.7. Where Type 1 ST changes appear only after pharmacological provocation, the patients are at minimal risk for arrhythmic events. BS ...
... There is consensus that the risk of life threatening arrhythmias in asymptomatic patients who only have spontaneous Type 1 ECG changes is moderate, between 0.24 and 1.7. Where Type 1 ST changes appear only after pharmacological provocation, the patients are at minimal risk for arrhythmic events. BS ...
An Overview of Current Cardiac Resynchronization Therapy
... coronary sinus (CS) in the treatment of medically refractory HF. LV lead placement is technically difficult with successful rates reported between 53% to 98% and implantation time ranging from 90 minutes to 5 hours.26,27 The anatomic variability of the cardiac veins limits the feasibility of LV lead ...
... coronary sinus (CS) in the treatment of medically refractory HF. LV lead placement is technically difficult with successful rates reported between 53% to 98% and implantation time ranging from 90 minutes to 5 hours.26,27 The anatomic variability of the cardiac veins limits the feasibility of LV lead ...
Eplerenone Reduces Mortality 30 Days After Randomization
... groups, the mean time from AMI to randomization was 7.3 days. Approximately 65% of patients in both groups were classified as Killip class II at randomization, and 90% of patients in both groups had signs of clinical heart failure (10% had diabetes mellitus without clinical heart failure). At baseli ...
... groups, the mean time from AMI to randomization was 7.3 days. Approximately 65% of patients in both groups were classified as Killip class II at randomization, and 90% of patients in both groups had signs of clinical heart failure (10% had diabetes mellitus without clinical heart failure). At baseli ...
Primary Prophylaxis of Sudden Death in Hypertrophic
... Symptomatic patients are generally treated with beta blockers or verapamil.42,48 Atrial fibrillation can be especially problematic89,90 with sudden clinical deterioration. Amiodarone is most widely used in this context.89,91 Medical therapy has not been proven to be beneficial in prevention of disea ...
... Symptomatic patients are generally treated with beta blockers or verapamil.42,48 Atrial fibrillation can be especially problematic89,90 with sudden clinical deterioration. Amiodarone is most widely used in this context.89,91 Medical therapy has not been proven to be beneficial in prevention of disea ...
Shortcut to Electrocardiography
... rhythm. They can further be grouped in atrial, junctional and the cells in the ventricles. Remember those pacemaker cells that are dominant takes over the rhythm. Normally the dominant cells are located high up in the right atrium. These groups of cells are called as the Sino Atrial (SA) node. In no ...
... rhythm. They can further be grouped in atrial, junctional and the cells in the ventricles. Remember those pacemaker cells that are dominant takes over the rhythm. Normally the dominant cells are located high up in the right atrium. These groups of cells are called as the Sino Atrial (SA) node. In no ...
here - Infarct Combat Project
... In the literature, we recorded therapeutic trials with the Digital or Strophanthin, with real benefits to myocardial ischemic regions, recognized as contractile deficient and without references to any adverse effects on the increase of oxygen demand by increasing contractility and disappearance of h ...
... In the literature, we recorded therapeutic trials with the Digital or Strophanthin, with real benefits to myocardial ischemic regions, recognized as contractile deficient and without references to any adverse effects on the increase of oxygen demand by increasing contractility and disappearance of h ...
A Prospective, Randomized Trial of an Emergency
... Only patients willing and able to sign an informed consent were included in this study. After granting consent, participants were randomized by telephone call to a remote, designated randomization center uninvolved in the patients’ care. Patients were then managed per the protocol to either care in ...
... Only patients willing and able to sign an informed consent were included in this study. After granting consent, participants were randomized by telephone call to a remote, designated randomization center uninvolved in the patients’ care. Patients were then managed per the protocol to either care in ...
Short-Acting Я-Adrenergic Antagonist Esmolol Given at
... ISF from the LV wall was collected through the microdialysis tubes for 10 minutes (baseline). ISF was then collected for 3 minutes during left stellate ganglion stimulation at 2 times the threshold that evoked an increase in systemic arterial pressure (5 ms, 7 to 15 mA). A 30-minute recovery period ...
... ISF from the LV wall was collected through the microdialysis tubes for 10 minutes (baseline). ISF was then collected for 3 minutes during left stellate ganglion stimulation at 2 times the threshold that evoked an increase in systemic arterial pressure (5 ms, 7 to 15 mA). A 30-minute recovery period ...
QRS Complexes (Fast and Easy ECGs, Shade / Wesley)
... • Wide, bizarre QRS complexes of supraventricular origin are often the result of intraventricular conduction defect which usually occurs due to right or left bundle branch block. • Wide QRS complexes may be seen in aberrant conduction, ventricular preexcitation and with a cardiac pacemaker. ...
... • Wide, bizarre QRS complexes of supraventricular origin are often the result of intraventricular conduction defect which usually occurs due to right or left bundle branch block. • Wide QRS complexes may be seen in aberrant conduction, ventricular preexcitation and with a cardiac pacemaker. ...
ECG Interpretation
... Sometimes fine irregular movements of the baseline are seen as a result of the atrial fibrillation waves – referred to as ‘f’ waves, however these are frequently indistinguishable from baseline artefact (e.g. muscle tremor) in small animals. Clinical findings The heart rhythm sounds chaotic and the ...
... Sometimes fine irregular movements of the baseline are seen as a result of the atrial fibrillation waves – referred to as ‘f’ waves, however these are frequently indistinguishable from baseline artefact (e.g. muscle tremor) in small animals. Clinical findings The heart rhythm sounds chaotic and the ...
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.