atrioventricular nodal rhythms
... FIG. i Electrocardiogram: a continuous strip of lead VI and representative complexes from standard leads I, II, and III showing A V dissociation between A V nodal pacemakers. to note that the configuration of a normal sinus P wave in lead VI is usually biphasic with a small initial positivity and a ...
... FIG. i Electrocardiogram: a continuous strip of lead VI and representative complexes from standard leads I, II, and III showing A V dissociation between A V nodal pacemakers. to note that the configuration of a normal sinus P wave in lead VI is usually biphasic with a small initial positivity and a ...
Pacemaker Implantation - Queensland Cardiovascular Group
... A bi-ventricular pacemaker has three leads, one in the right atrium, one in the right ventricle and one placed within a vein that lies on the outside surface of the left ventricle. This pacemaker works in a similar way to a dual chamber pacemaker. The addition of the left ventricular lead allows coo ...
... A bi-ventricular pacemaker has three leads, one in the right atrium, one in the right ventricle and one placed within a vein that lies on the outside surface of the left ventricle. This pacemaker works in a similar way to a dual chamber pacemaker. The addition of the left ventricular lead allows coo ...
Effect of Dronedarone on Cardiovascular Events in Atrial Fibrillation
... a factor of two to three, resulting in a substantial public health burden.2 Despite advances in nonpharmacologic therapy,3 many symptomatic patients receive medical treatment for rhythm control. Currently available antiarrhythmic agents are limited by either their modest efficacy or their potential ...
... a factor of two to three, resulting in a substantial public health burden.2 Despite advances in nonpharmacologic therapy,3 many symptomatic patients receive medical treatment for rhythm control. Currently available antiarrhythmic agents are limited by either their modest efficacy or their potential ...
- Wiley Online Library
... life and premature death. Although the cancer-cachexia state primarily affects skeletal muscle, possible damage in the cardiac muscle remains to be better characterized and elucidated. Leucine, which is a branched chain amino acid, is very useful for preserving lean body mass. Thus, this amino acid ...
... life and premature death. Although the cancer-cachexia state primarily affects skeletal muscle, possible damage in the cardiac muscle remains to be better characterized and elucidated. Leucine, which is a branched chain amino acid, is very useful for preserving lean body mass. Thus, this amino acid ...
publication
... Autonomic dysfunction occurs in heart failure (HF) and is characterized by enhanced sympathetic activity and withdrawal of parasympathetic control. This autonomic imbalance has long been recognized as an important mediator of increased mortality and morbidity in myocardial infarction and HF (1, 2). ...
... Autonomic dysfunction occurs in heart failure (HF) and is characterized by enhanced sympathetic activity and withdrawal of parasympathetic control. This autonomic imbalance has long been recognized as an important mediator of increased mortality and morbidity in myocardial infarction and HF (1, 2). ...
Management of patients with ventricular tachycardia in Europe
... In these patients, catheter ablation serves only as an adjunct to ICD or AAD treatment, or is not considered. The situation is similar for catheter ablation in patients with haemodynamically unstable recurrent polymorphic VT, most likely because ablation has been reported to be associated with high ...
... In these patients, catheter ablation serves only as an adjunct to ICD or AAD treatment, or is not considered. The situation is similar for catheter ablation in patients with haemodynamically unstable recurrent polymorphic VT, most likely because ablation has been reported to be associated with high ...
Left Ventricular Function Described in Physical Terms
... derived by differentiating the pressure waveform. Both pressure records have been calibrated in dynes/cm.2, as well as the mm. Hg units familiar to biologists. The duration of mechanical systole was also computed from the record of ventricular pressure. A linear ramp voltage was formed while the ven ...
... derived by differentiating the pressure waveform. Both pressure records have been calibrated in dynes/cm.2, as well as the mm. Hg units familiar to biologists. The duration of mechanical systole was also computed from the record of ventricular pressure. A linear ramp voltage was formed while the ven ...
Improvement of Cardiac Performance by Intravenous Infusion of L
... nitric oxide, to patients with moderate congestive heart failure. Infusion of 20 g of L-arginine at a steady rate over 1 h resulted in increased stroke volume and cardiac output with a concomitant decrease in total peripheral resistance without acceleration in heart rate. Urinary excretion and clear ...
... nitric oxide, to patients with moderate congestive heart failure. Infusion of 20 g of L-arginine at a steady rate over 1 h resulted in increased stroke volume and cardiac output with a concomitant decrease in total peripheral resistance without acceleration in heart rate. Urinary excretion and clear ...
Biventricular Pacemakers (Cardiac Resynchronization Therapy) for
... For patients who have some degree of heart failure and who are candidates for a pacemaker, evidence from one RCT suggests that biventricular pacing is associated with reduced urgent care visits and hospitalizations for heart failure. Therefore, CRT may be considered medically necessary for patients ...
... For patients who have some degree of heart failure and who are candidates for a pacemaker, evidence from one RCT suggests that biventricular pacing is associated with reduced urgent care visits and hospitalizations for heart failure. Therefore, CRT may be considered medically necessary for patients ...
The Working Heart
... distal end for volume measurements. The electrocardiogram of the work-performing heart can easily be recorded by applying electrodes to the right atrium and ventricle. It is also possible to record the electrocardiogram via the atrial and aortic cannulae, although we have found the signal quality to ...
... distal end for volume measurements. The electrocardiogram of the work-performing heart can easily be recorded by applying electrodes to the right atrium and ventricle. It is also possible to record the electrocardiogram via the atrial and aortic cannulae, although we have found the signal quality to ...
Biventricular Pacemakers (Cardiac Resynchronization Therapy) for
... For patients who have some degree of heart failure and who are candidates for a pacemaker, evidence from one RCT suggests that biventricular pacing is associated with reduced urgent care visits and hospitalizations for heart failure. Therefore, CRT may be considered medically necessary for patients ...
... For patients who have some degree of heart failure and who are candidates for a pacemaker, evidence from one RCT suggests that biventricular pacing is associated with reduced urgent care visits and hospitalizations for heart failure. Therefore, CRT may be considered medically necessary for patients ...
Atrioventricular Conduction Abnormalities: Delays, Blocks, and
... connected to the bundle branches (Fig. 17-1). The atria and ventricles are otherwise electrically isolated from each other by connective tissue in the indented rings (grooves) between the upper and lower chambers. The key exception occurs with Wolff-Parkinson-White (WPW) preexcitation syndrome, desc ...
... connected to the bundle branches (Fig. 17-1). The atria and ventricles are otherwise electrically isolated from each other by connective tissue in the indented rings (grooves) between the upper and lower chambers. The key exception occurs with Wolff-Parkinson-White (WPW) preexcitation syndrome, desc ...
Case Report Feminizing Adrenal Carcinoma Presenting with Heart
... The possible contribution of other adrenal hormones to our patient’s cardiomyopathy cannot be ruled out. It is possible that cortisol excess, as demonstrated by an abnormal result on 1 mg dexamethasone suppression testing, as well as a suppressed plasma ACTH level, was a factor in his cardiac presen ...
... The possible contribution of other adrenal hormones to our patient’s cardiomyopathy cannot be ruled out. It is possible that cortisol excess, as demonstrated by an abnormal result on 1 mg dexamethasone suppression testing, as well as a suppressed plasma ACTH level, was a factor in his cardiac presen ...
Supplementary Material
... Physiological data including heart rate were recorded continuously during all infusions with an MP100 acquisition unit (Biopac Systems, Inc). Dial ratings were collected with a custom built dial that consisted of a rotating potentiometer with a continuous range of 0.000 to 5.000 Volts. The average h ...
... Physiological data including heart rate were recorded continuously during all infusions with an MP100 acquisition unit (Biopac Systems, Inc). Dial ratings were collected with a custom built dial that consisted of a rotating potentiometer with a continuous range of 0.000 to 5.000 Volts. The average h ...
International Journal of Biomedical Research Research Article
... showed 6% of Sinus Bradycardia i.e., the heart rate was less than 60. The incidence of Sinus Bradycardia was almost similar i n the present study as that of Graybiels. The lower incidence of Sinus Bradycardia in the present study compared to that of Graybiel study is perhaps due to the small number ...
... showed 6% of Sinus Bradycardia i.e., the heart rate was less than 60. The incidence of Sinus Bradycardia was almost similar i n the present study as that of Graybiels. The lower incidence of Sinus Bradycardia in the present study compared to that of Graybiel study is perhaps due to the small number ...
Exercise and Heart Failure. Relation of the Severity of the Disease to
... groups of patients in functional classes I, II, and III were compared, we observed significant differences. For the values of heart rate in the anaerobic threshold, an index considered representative during the exercise in the transition of the aerobic to the compensated anaerobic metabolism, no sig ...
... groups of patients in functional classes I, II, and III were compared, we observed significant differences. For the values of heart rate in the anaerobic threshold, an index considered representative during the exercise in the transition of the aerobic to the compensated anaerobic metabolism, no sig ...
Cardiac reserve mobilization trend during exercise and recovery
... exercise, the S1/S2 line and HR line also go downward, but until 30 min after cessation of exercise, both S1/S2 line and HR line do not revert back to the baseline level, S1/S2 remains above 2 and HR above 100 beats/ min. By comparing Figure 1 with Figure 2, some different features of the cardiac re ...
... exercise, the S1/S2 line and HR line also go downward, but until 30 min after cessation of exercise, both S1/S2 line and HR line do not revert back to the baseline level, S1/S2 remains above 2 and HR above 100 beats/ min. By comparing Figure 1 with Figure 2, some different features of the cardiac re ...
Global Bi-ventricular endocardial distribution of activation rate
... recorded for 20 s as a short-duration (SDVF) episode before being halted by a 400–600 V biphasic shock (6/ 4 ms) delivered from a defibrillator electrode. The last VF episode was allowed to continue for at least 3 min (long-duration VF, LDVF), and the animal was not resuscitated. The first 20 s of V ...
... recorded for 20 s as a short-duration (SDVF) episode before being halted by a 400–600 V biphasic shock (6/ 4 ms) delivered from a defibrillator electrode. The last VF episode was allowed to continue for at least 3 min (long-duration VF, LDVF), and the animal was not resuscitated. The first 20 s of V ...
A simple model of the right atrium of the human heart with the
... restitution properties of the tissue, are needed to effectively simulate cardiac tissue. An example of such a model is the 3V model developed by Fenton and Karma [12]. For the pacemaker tissue, on the other hand, currently only few models of human sinoatrial nodal (SAN) tissue exist, with two report ...
... restitution properties of the tissue, are needed to effectively simulate cardiac tissue. An example of such a model is the 3V model developed by Fenton and Karma [12]. For the pacemaker tissue, on the other hand, currently only few models of human sinoatrial nodal (SAN) tissue exist, with two report ...
Y-Adaptor Connection for LV Lead in Upgrading to Biventricular
... beneficiaries of the modern biventricular pacing through insertion of a new dedicated device or upgrading the existing system to biventricular pacing with available tools and techniques at least possible cost. The newer-generation pacemakers used in cardiac resynchronization therapy, such as InSync ...
... beneficiaries of the modern biventricular pacing through insertion of a new dedicated device or upgrading the existing system to biventricular pacing with available tools and techniques at least possible cost. The newer-generation pacemakers used in cardiac resynchronization therapy, such as InSync ...
The Cardiovascular System in American Sign Language and English
... Your heart has several special properties. First of all think of its job. It never gets a break, never gets a fifteen-minute time out, it beats from development embryologically until death. The heart is the only location in the body where we find cardiac muscle cells. These cells are extremely durab ...
... Your heart has several special properties. First of all think of its job. It never gets a break, never gets a fifteen-minute time out, it beats from development embryologically until death. The heart is the only location in the body where we find cardiac muscle cells. These cells are extremely durab ...
- Wiley Online Library
... signaling pathway which regulates cell fate, differentiation, and patterning. This signaling system is controlled by ligands that are ubiquinated by the E3 ubiquitin ligase MIB1. Inactivating mutations in the human MIB1 gene produces LVNC in transgenic mice.13 Nevertheless, the genesis of noncompacti ...
... signaling pathway which regulates cell fate, differentiation, and patterning. This signaling system is controlled by ligands that are ubiquinated by the E3 ubiquitin ligase MIB1. Inactivating mutations in the human MIB1 gene produces LVNC in transgenic mice.13 Nevertheless, the genesis of noncompacti ...
A Patient`s Guide - Amarillo Heart Group
... how severe the problem is. • A heart scan (or thallium scan) uses a radioactive substance, called a tracer, to produce images of the heart muscle. In patients with coronary heart disease, the heart scan helps identify areas of the heart muscle that do not receive enough blood. If these tests do not ...
... how severe the problem is. • A heart scan (or thallium scan) uses a radioactive substance, called a tracer, to produce images of the heart muscle. In patients with coronary heart disease, the heart scan helps identify areas of the heart muscle that do not receive enough blood. If these tests do not ...