Interatrial septal thickness as a marker of structural and functional
... cases in which AF occurred during 3D voltage mapping, internal DC cardioversion (5 to 15 J, biphasic shocks with R-wave synchronization, anodal decapolar catheter in the high right atrium to cathodal duodecapolar catheter inside the coronary sinus) (Lifepak 12, Physio-Control Ltd., Redmond, WA, USA) ...
... cases in which AF occurred during 3D voltage mapping, internal DC cardioversion (5 to 15 J, biphasic shocks with R-wave synchronization, anodal decapolar catheter in the high right atrium to cathodal duodecapolar catheter inside the coronary sinus) (Lifepak 12, Physio-Control Ltd., Redmond, WA, USA) ...
The intramyocardial left anterior descending artery
... In their autopsy study, Ferreira et al.[10] distinguished two types of MBs, viz. superficial and deep. The superficial variation was situated in the interventricular groove and was crossed perpendicularly by muscle fibres. The deep variation had larger muscle bundles than the superficial one and was ...
... In their autopsy study, Ferreira et al.[10] distinguished two types of MBs, viz. superficial and deep. The superficial variation was situated in the interventricular groove and was crossed perpendicularly by muscle fibres. The deep variation had larger muscle bundles than the superficial one and was ...
Heart failure – biomarker effect and influence on quality of life.
... however there were no significant differences between the groups (Paper III). For responders the within group analysis showed improvement in four domains compared to the non-responders that improved in one domain; however there were no significant differences between the two groups. There were impro ...
... however there were no significant differences between the groups (Paper III). For responders the within group analysis showed improvement in four domains compared to the non-responders that improved in one domain; however there were no significant differences between the two groups. There were impro ...
Cardiac Catheterization History and Current Practice Standards
... In a few such patients, the diagnostic portion of the catheterization procedure may reveal other features (e.g., complex multivessel or left main coronary disease, severe associated valvular disease), which provide critical information for the decision and planning of open heart surgery. Although fe ...
... In a few such patients, the diagnostic portion of the catheterization procedure may reveal other features (e.g., complex multivessel or left main coronary disease, severe associated valvular disease), which provide critical information for the decision and planning of open heart surgery. Although fe ...
Bradycardia in Children During General Anaesthesia
... As discussed before, children that need endotracheal intubation commonly develop bradycardia. In literature there is discussion about the effect of premedication with atropine in children under the age of 5. Some authors advise atropine as pretreatment in all children under 1 year of age receiving s ...
... As discussed before, children that need endotracheal intubation commonly develop bradycardia. In literature there is discussion about the effect of premedication with atropine in children under the age of 5. Some authors advise atropine as pretreatment in all children under 1 year of age receiving s ...
PDF - Circulation
... evidence of hypertrophy or extensive fibrosis. All experimental protocols were reviewed and approved by an internal review board. After removal from the chest, the left and right ventricles were opened surgically and placed into an oxygenated physiological solution (see composition below). The tissu ...
... evidence of hypertrophy or extensive fibrosis. All experimental protocols were reviewed and approved by an internal review board. After removal from the chest, the left and right ventricles were opened surgically and placed into an oxygenated physiological solution (see composition below). The tissu ...
Late ventricular geometry and performance changes of
... median 14 months). Patients were stable enough to undergo a l-h magnetic resonance imaging scan under sedation. Written informed consent was obtained from all participants, their parents, or both. The human investigations committee at The Children’s Hospital of Philadelphia approved the study protoc ...
... median 14 months). Patients were stable enough to undergo a l-h magnetic resonance imaging scan under sedation. Written informed consent was obtained from all participants, their parents, or both. The human investigations committee at The Children’s Hospital of Philadelphia approved the study protoc ...
intracardiac shunting revealed by angiocardiography in the lizard
... pattern prevents a large interface between the two qualities of atrial blood entering the ventricular space. For right atrial blood to enter the cavum pulmonale, which during systole will be the exit compartment to the main pulmonary arterial trunk, it has to traverse the cavum venosum and pass acro ...
... pattern prevents a large interface between the two qualities of atrial blood entering the ventricular space. For right atrial blood to enter the cavum pulmonale, which during systole will be the exit compartment to the main pulmonary arterial trunk, it has to traverse the cavum venosum and pass acro ...
Heart Sounds
... A 26-year-ol man seeks your advice because he was diagnosed as having a heart murmur as a baby. At that time, his parents were told he would “outgrow” the murmur. The patient participates actively in sports without any cardiac symptoms. On physical exam, S1 is normal, S2 is physiologically split. A ...
... A 26-year-ol man seeks your advice because he was diagnosed as having a heart murmur as a baby. At that time, his parents were told he would “outgrow” the murmur. The patient participates actively in sports without any cardiac symptoms. On physical exam, S1 is normal, S2 is physiologically split. A ...
MR Study of Myocardial Fiber Structure Using Diffusion Tensor
... 4. Discussions and Conclusions In normal hearts, most fiber bundles, particularly those having long pathways in myocardium, tend to have small helix angles and spiral circumferentially in mid-wall. The fiber pathways at middle and upper ventricle are longer than those near apex. The findings suggest ...
... 4. Discussions and Conclusions In normal hearts, most fiber bundles, particularly those having long pathways in myocardium, tend to have small helix angles and spiral circumferentially in mid-wall. The fiber pathways at middle and upper ventricle are longer than those near apex. The findings suggest ...
Cardiac Murmurs
... Systolic ejection murmurs. These are described as crescendo- decrescendo murmurs; their intensity peaks in early or mid systole(see Figure 2). Ejection murmurs result from some type of outflow obstruction. Important causes include aortic stenosis, pulmonary stenosis, and hypertrophic obstructive car ...
... Systolic ejection murmurs. These are described as crescendo- decrescendo murmurs; their intensity peaks in early or mid systole(see Figure 2). Ejection murmurs result from some type of outflow obstruction. Important causes include aortic stenosis, pulmonary stenosis, and hypertrophic obstructive car ...
ACE inhibition prevents diastolic Ca2+ ... Ca2+ sensitivity after myocardial infarction
... LV dilation (Table 1 ). At the functional level, MI hearts exhibited a dramatic reduction of the shortening fraction (SF) ( Table 1 ), reflecting a major alteration of ventricular function. Although MI-D mice exhibited signs of improved systolic function, the benefit was small (Table 1 ), consistent ...
... LV dilation (Table 1 ). At the functional level, MI hearts exhibited a dramatic reduction of the shortening fraction (SF) ( Table 1 ), reflecting a major alteration of ventricular function. Although MI-D mice exhibited signs of improved systolic function, the benefit was small (Table 1 ), consistent ...
Aberrant Intracellular Calcium Cycling in the Heart
... function of the heart, and disturbances in heart rhythm (arrhythmias) are common and interrelated mechanisms underlying cardiac mortality. Intracellular calcium ions are crucial to contraction and relaxation of the heart muscle, as well as to control of its rhythm. How calcium is handled and regulat ...
... function of the heart, and disturbances in heart rhythm (arrhythmias) are common and interrelated mechanisms underlying cardiac mortality. Intracellular calcium ions are crucial to contraction and relaxation of the heart muscle, as well as to control of its rhythm. How calcium is handled and regulat ...
Heart rate variability in young adults
... which is monitored by multiple receptors and adjusted by modulating heart rate, cardiac contractility and systemic vascular resistance of circulation. In principle, this short-term regulatory mechanism forms a negative feed-back control loop with a time delay, which results in sinusoidal oscillation ...
... which is monitored by multiple receptors and adjusted by modulating heart rate, cardiac contractility and systemic vascular resistance of circulation. In principle, this short-term regulatory mechanism forms a negative feed-back control loop with a time delay, which results in sinusoidal oscillation ...
Corticosteroid-Associated Congestive Heart Failure in 12 Cats
... included confounding events or disorders that may have precipitated CHF; or if the case was lost to follow-up. Evaluations Data collected from the medical records of the study population cases included presenting complaint; signalment; type, dose, and reason for corticosteroid administration; and le ...
... included confounding events or disorders that may have precipitated CHF; or if the case was lost to follow-up. Evaluations Data collected from the medical records of the study population cases included presenting complaint; signalment; type, dose, and reason for corticosteroid administration; and le ...
Caffeine and Ventricular Arrhythmias
... in six (27%), and decreased in six (27%). Rhythm severity was unchanged in 17 patients (77%), more severe in two (9%), and less severe in three (14%). In those patients with clinical ventricular arrhythmias, caffeine did not significantly alter inducibility or severity of arrhythmias, suggesting lit ...
... in six (27%), and decreased in six (27%). Rhythm severity was unchanged in 17 patients (77%), more severe in two (9%), and less severe in three (14%). In those patients with clinical ventricular arrhythmias, caffeine did not significantly alter inducibility or severity of arrhythmias, suggesting lit ...
ESC Guidelines for the diagnosis and treatment
... Associations: European Association for Cardiovascular Prevention & Rehabilitation (EACPR), European Association of Echocardiography (EAE), European Heart Rhythm Association (EHRA), European Association of Percutaneous Cardiovascular Interventions (EAPCI) Working Groups: Acute Cardiac Care, Cardiovas ...
... Associations: European Association for Cardiovascular Prevention & Rehabilitation (EACPR), European Association of Echocardiography (EAE), European Heart Rhythm Association (EHRA), European Association of Percutaneous Cardiovascular Interventions (EAPCI) Working Groups: Acute Cardiac Care, Cardiovas ...
Sustained release organic nitrite therapy
... In still another embodiment of the invention, nitrite therapy can be used for treating congestive heart failure efficacy of long-term nitrate therapy. Tolerance to nitrates appears to be associated with sustained plasma drug con 60 (CHF). CHF results when the left, right or both ventricles fail to p ...
... In still another embodiment of the invention, nitrite therapy can be used for treating congestive heart failure efficacy of long-term nitrate therapy. Tolerance to nitrates appears to be associated with sustained plasma drug con 60 (CHF). CHF results when the left, right or both ventricles fail to p ...
Anita Sharma Timilsina EFFECT OF EXERCISE INTENSITY AND
... obese children who became normal weight by adulthood was similar to those among persons who were never overweight or obese before (Juonala et al., 2011). Overweight/obesity during adolescence leads to premature mortality and morbidity in adulthood (Reilly & Kelly, 2011) regardless of the adult obesi ...
... obese children who became normal weight by adulthood was similar to those among persons who were never overweight or obese before (Juonala et al., 2011). Overweight/obesity during adolescence leads to premature mortality and morbidity in adulthood (Reilly & Kelly, 2011) regardless of the adult obesi ...
ESC Guidelines - Dansk Cardiologisk Selskab
... Associations: European Association for Cardiovascular Prevention & Rehabilitation (EACPR), European Association of Echocardiography (EAE), European Heart Rhythm Association (EHRA), European Association of Percutaneous Cardiovascular Interventions (EAPCI) Working Groups: Acute Cardiac Care, Cardiovas ...
... Associations: European Association for Cardiovascular Prevention & Rehabilitation (EACPR), European Association of Echocardiography (EAE), European Heart Rhythm Association (EHRA), European Association of Percutaneous Cardiovascular Interventions (EAPCI) Working Groups: Acute Cardiac Care, Cardiovas ...
Experience with a method for anatomic dissection that allows macro
... is finished, the heart can be used for any other type of anatomic or pathologic analysis, and it can be opened in the conventional manner (from the posterior to the anterior wall, following the blood flow, first the right side, then the left side).2,5 Very few techniques are described for specific d ...
... is finished, the heart can be used for any other type of anatomic or pathologic analysis, and it can be opened in the conventional manner (from the posterior to the anterior wall, following the blood flow, first the right side, then the left side).2,5 Very few techniques are described for specific d ...
Role of trans-thoracic impedance and current for a successful
... The thesis examines the effect of transthoracic impedance (TTI) on the success rate of synchronized cardioversion, using retrospective analysis on clinical data and numerical model. Synchronized electrical cardioversion is a treatment that applies an electrical pulse to the cardiac tissue to restore ...
... The thesis examines the effect of transthoracic impedance (TTI) on the success rate of synchronized cardioversion, using retrospective analysis on clinical data and numerical model. Synchronized electrical cardioversion is a treatment that applies an electrical pulse to the cardiac tissue to restore ...
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.