Pulmonary blood flow - Society for Cardiovascular Angiography and
... This site has been developed solely for use by members and authorized guests of the Society for Cardiovascular Angiography and Interventions (SCAI), henceforth referred to as "the users." The users are authorized to view, copy, download and print materials from this website subject to the following ...
... This site has been developed solely for use by members and authorized guests of the Society for Cardiovascular Angiography and Interventions (SCAI), henceforth referred to as "the users." The users are authorized to view, copy, download and print materials from this website subject to the following ...
`Physiological hypertrophy of the heart` is a misnomer
... he term ‘hypertrophy’ means an abnormal growth (eg, cardiac hypertrophy is understood as an abnormal growth of cardiac mass due to an increase in the size of myocytes). A second meaning of the term ‘physiological’ is, according to the dictionary, normal. Taking the above interpretations into conside ...
... he term ‘hypertrophy’ means an abnormal growth (eg, cardiac hypertrophy is understood as an abnormal growth of cardiac mass due to an increase in the size of myocytes). A second meaning of the term ‘physiological’ is, according to the dictionary, normal. Taking the above interpretations into conside ...
Effect of Cardiac Resynchronization Therapy on Left Atrial Reverse
... revealed reverse remodeling in left ventricle with cardiac resynchronization therapy (CRT). However, effects on left atrial remodeling, left atrial total emptying fraction and left atrial spontaneous echo contrast (SEC) have not been adequately evaluated. The aim of this study was to investigate the ...
... revealed reverse remodeling in left ventricle with cardiac resynchronization therapy (CRT). However, effects on left atrial remodeling, left atrial total emptying fraction and left atrial spontaneous echo contrast (SEC) have not been adequately evaluated. The aim of this study was to investigate the ...
With Third-Degree Atrioventricular Block Rate and
... study. Atrioventricular block was labeled as idiopathic when there were no diseases that could precipitate atrioventricular block, such as inflammatory or infiltrative disease, cardiac tumors, toxicity of drugs (particularly His-Purkinje system depressant drugs, such as those for arrhythmia) or elec ...
... study. Atrioventricular block was labeled as idiopathic when there were no diseases that could precipitate atrioventricular block, such as inflammatory or infiltrative disease, cardiac tumors, toxicity of drugs (particularly His-Purkinje system depressant drugs, such as those for arrhythmia) or elec ...
The prevalence of the metabolic syndrome and its impact on the left
... Sm velocities have been shown in patients with mutations of hypertrophic cardiomyopathy at the time of subclinical disease when cardiac hypertrophy is not present17. In asymptomatic patients with severe mitral regurgitation and normal LV ejection fraction, reduced Sm velocity can help to predict tho ...
... Sm velocities have been shown in patients with mutations of hypertrophic cardiomyopathy at the time of subclinical disease when cardiac hypertrophy is not present17. In asymptomatic patients with severe mitral regurgitation and normal LV ejection fraction, reduced Sm velocity can help to predict tho ...
syncope evaluation - University Hospitals of Leicester
... reasonable to accept the diagnosis of vasovagal syncope and to treat appropriately. Checklist before accepting that the ECG is normal: Is the QTc prolonged (if greater than 440ms refer to cardiology, although cardiologists would use 460ms as the cut-off for boys and 470ms for the cut-off for older g ...
... reasonable to accept the diagnosis of vasovagal syncope and to treat appropriately. Checklist before accepting that the ECG is normal: Is the QTc prolonged (if greater than 440ms refer to cardiology, although cardiologists would use 460ms as the cut-off for boys and 470ms for the cut-off for older g ...
Ventricular Hypertrophy - Cardiac and Stroke Networks in
... Biventricular Hypertrophy - no ECG changes, increase in duration can be seen ...
... Biventricular Hypertrophy - no ECG changes, increase in duration can be seen ...
Working out the heart: Functional remodeling by endurance exercise
... hypertrophy differs from the hypertrophic growth that usually develops in response to chronic arterial hypertension and myocardial infarction. The latter is usually accompanied by increased expression of cell stress biomarkers (e.g., atrial natriuretic peptide), fibrosis, relative capillary rarefacti ...
... hypertrophy differs from the hypertrophic growth that usually develops in response to chronic arterial hypertension and myocardial infarction. The latter is usually accompanied by increased expression of cell stress biomarkers (e.g., atrial natriuretic peptide), fibrosis, relative capillary rarefacti ...
Advanced Cardiac Function: ECG Leads
... Cardiac action potentials are different from the action potentials of nerves and skeletal muscle. Cardiac action potentials contain three phases. In addition to the rapid depolarization and repolarization of the membrane potential in nerve and muscle action potentials, cardiac action potentials cont ...
... Cardiac action potentials are different from the action potentials of nerves and skeletal muscle. Cardiac action potentials contain three phases. In addition to the rapid depolarization and repolarization of the membrane potential in nerve and muscle action potentials, cardiac action potentials cont ...
Cardiac Monitoring: Cardiac Rhythm Assessment and Telemetry
... 6. Apply electrodes as recommended. Connect the lead wires to the electrodes that snap on before placement on patient. Refer to diagrams – Appendixes A, B, and C. 7. To prevent rotation of the leadwire, tugging & artifact, make a stress loop on each leadwire and tape the stress loop to the patient. ...
... 6. Apply electrodes as recommended. Connect the lead wires to the electrodes that snap on before placement on patient. Refer to diagrams – Appendixes A, B, and C. 7. To prevent rotation of the leadwire, tugging & artifact, make a stress loop on each leadwire and tape the stress loop to the patient. ...
Intrinsic Conduction System
... d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Page 4.) Explain t ...
... d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Page 4.) Explain t ...
Rate control versus rhythm control for patients with persistent atrial
... under rate control. Thromboembolic complications, drug side effects, and pacemaker implantation were more frequent under rhythm control. Quality of life did not differ between strategies. In patients successfully treated with rhythm control, the prevalence of end points was not different from those ...
... under rate control. Thromboembolic complications, drug side effects, and pacemaker implantation were more frequent under rhythm control. Quality of life did not differ between strategies. In patients successfully treated with rhythm control, the prevalence of end points was not different from those ...
Additional Notes on The Heart
... Permanent brain damage and death can occur unless oxygenated blood flow is restored within five minutes. ...
... Permanent brain damage and death can occur unless oxygenated blood flow is restored within five minutes. ...
Intrinsic Conduction System
... d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Page 4.) Explain t ...
... d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Page 4.) Explain t ...
d) Left axis deviation
... RV hypertrophy occurs over time in response to pressure or volume overload in conditions such as; 1. Primary pulmonary hypertension 2. Chronic obstructive pulmonary disease (COPD) 3. Pulmonic stenosis 4. Atrial septal defect (ASD). This patient was diagnosed with PAH ...
... RV hypertrophy occurs over time in response to pressure or volume overload in conditions such as; 1. Primary pulmonary hypertension 2. Chronic obstructive pulmonary disease (COPD) 3. Pulmonic stenosis 4. Atrial septal defect (ASD). This patient was diagnosed with PAH ...
Guidelines and Regulations for Driving in Heart Disease
... the previous sections. The ESC published relevant guidelines in 2004, which are presented in comparison with guidelines from the CCS in Table 3.6 The decision to allow a patient to resume driving should be based on the severity and nature of the presenting event.15 Implantable cardioverter defibrill ...
... the previous sections. The ESC published relevant guidelines in 2004, which are presented in comparison with guidelines from the CCS in Table 3.6 The decision to allow a patient to resume driving should be based on the severity and nature of the presenting event.15 Implantable cardioverter defibrill ...
Document
... • In skeletal muscle and neurons, an action potential falls back to Resting Membrane Potential (RMP) within 1-2 msec, but in cardiac muscle, slow calcium channels remain open longer (after sodium channels close), prolonging the depolarization of the cell. • As long as the action potential is in its ...
... • In skeletal muscle and neurons, an action potential falls back to Resting Membrane Potential (RMP) within 1-2 msec, but in cardiac muscle, slow calcium channels remain open longer (after sodium channels close), prolonging the depolarization of the cell. • As long as the action potential is in its ...
European Journal of Heart Failure
... Each component was analysed separately and the disease course after the first event was studied. The multistate analysis showed that the randomised allocation to ASV significantly increased the risk of cardiovascular death without prior hospitalisation for worsening heart failure or life-saving even ...
... Each component was analysed separately and the disease course after the first event was studied. The multistate analysis showed that the randomised allocation to ASV significantly increased the risk of cardiovascular death without prior hospitalisation for worsening heart failure or life-saving even ...
crusade quality improvement initiative: better care for patients with
... 10.1%, P < .0001), and have less use of cardiac catheterization within 48 hours (48.7% vs 55.5%, P < .0001).12 Clinical Practice In addition to evaluating treatment disparity by specific patient populations, data from the CRUSADE registry have been used to address pertinent clinical questions ranging ...
... 10.1%, P < .0001), and have less use of cardiac catheterization within 48 hours (48.7% vs 55.5%, P < .0001).12 Clinical Practice In addition to evaluating treatment disparity by specific patient populations, data from the CRUSADE registry have been used to address pertinent clinical questions ranging ...
Etiology of Anemia in Patients With Advanced Heart Failure
... CHF may be caused by bone marrow suppression (27). Interleukin-1 and tumor necrosis factor-␣ directly inhibit the in vitro production of erythropoietin in patients with inflammatory disorders who commonly exhibit a blunted response of erythropoietin to anemia (27,28). Elevated plasma concentrations ...
... CHF may be caused by bone marrow suppression (27). Interleukin-1 and tumor necrosis factor-␣ directly inhibit the in vitro production of erythropoietin in patients with inflammatory disorders who commonly exhibit a blunted response of erythropoietin to anemia (27,28). Elevated plasma concentrations ...
Atrial fibrillation associated with high voltage electric shock in a
... failed to revert into sinus rhythm. Thereafter infusion amiodarone was given that showed successful reversal of atrial fibrillation into sinus rhythm.7 Our case also represented a similar result though we used amiodarone infusion as an initial therapy. The current NICE guideline (June 2014) also sug ...
... failed to revert into sinus rhythm. Thereafter infusion amiodarone was given that showed successful reversal of atrial fibrillation into sinus rhythm.7 Our case also represented a similar result though we used amiodarone infusion as an initial therapy. The current NICE guideline (June 2014) also sug ...
Sustained ventricular tachycardia in structural heart disease
... or be completely asymptomatic. The clinical impact of the arrhythmia depends on several factors such as the VT cycle length, the LV systolic function, and the autonomic tone. In patients with Chagas disease SMVT can also occur in the absence of severe LV dysfunction and, hence, be hemodynamically st ...
... or be completely asymptomatic. The clinical impact of the arrhythmia depends on several factors such as the VT cycle length, the LV systolic function, and the autonomic tone. In patients with Chagas disease SMVT can also occur in the absence of severe LV dysfunction and, hence, be hemodynamically st ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.