Premature Ventricular Contraction
... system are capable of spontaneous depolarization. • The rate of depolarization decreases from top to bottom: fastest at the sinoatrial node; slowest within the ventricles. • Ectopic impulses from subsidiary pacemakers are normally suppressed by more rapid impulses from above. • However, if an ectopi ...
... system are capable of spontaneous depolarization. • The rate of depolarization decreases from top to bottom: fastest at the sinoatrial node; slowest within the ventricles. • Ectopic impulses from subsidiary pacemakers are normally suppressed by more rapid impulses from above. • However, if an ectopi ...
Heart Failure: Discrepancy Between NYHA Functional Classification
... (HF) exacerbations (1). Large amounts of proBNP can be detected in plasma of healthy subjects and in particular of patients with heart failure. Plasma concentrations of BNP and amino-terminal pro-B-type natriuretic peptide (NT-proBNP) are more closely related to measurements of cardiac structure, fu ...
... (HF) exacerbations (1). Large amounts of proBNP can be detected in plasma of healthy subjects and in particular of patients with heart failure. Plasma concentrations of BNP and amino-terminal pro-B-type natriuretic peptide (NT-proBNP) are more closely related to measurements of cardiac structure, fu ...
(MUGA) scanning
... evaluate the left ventricular ejection fraction (LVEF), a measure of overall cardiac function. It may also detect areas of poor contractility following an ischemic episode and it is used to evaluate left ventricular hypertrophy. Initial Clinical Reviewers (ICRs) and Physician Clinical Reviewers (PCR ...
... evaluate the left ventricular ejection fraction (LVEF), a measure of overall cardiac function. It may also detect areas of poor contractility following an ischemic episode and it is used to evaluate left ventricular hypertrophy. Initial Clinical Reviewers (ICRs) and Physician Clinical Reviewers (PCR ...
Word Version - Andorra Pediatrics
... electrocardiogram (ECG), and echocardiography can all be used to evaluate the type of ventricular septal defect. ...
... electrocardiogram (ECG), and echocardiography can all be used to evaluate the type of ventricular septal defect. ...
Chapter 21: Blood Vessels and Circulation
... Summary of Cardiac Conduction • Before each heart beat (contraction) – Action potential initiated spontaneously at SA node – Wave of depolarization radiates from SA node – Spreads through contractile cells of atrial myocardium – To AV node – Travels down IV septum to apex – Turns and spreads throug ...
... Summary of Cardiac Conduction • Before each heart beat (contraction) – Action potential initiated spontaneously at SA node – Wave of depolarization radiates from SA node – Spreads through contractile cells of atrial myocardium – To AV node – Travels down IV septum to apex – Turns and spreads throug ...
Indications - Cecchini Cuore
... • Wide complex QRS Does not use the normal conduction system Depolarizes ventricles from right to left and from apex to base o Resembles complete LBBB o o ...
... • Wide complex QRS Does not use the normal conduction system Depolarizes ventricles from right to left and from apex to base o Resembles complete LBBB o o ...
Computer-assisted Planning of Cardiac Interventions and Heart
... another reason might be a strong dilatation of the heart after many years of heart failure that leads to a very small stroke volume. The best way to carry out this type of heart surgery would be to improve the contraction and the stroke volume without destabilizing the electrophysiology of the heart ...
... another reason might be a strong dilatation of the heart after many years of heart failure that leads to a very small stroke volume. The best way to carry out this type of heart surgery would be to improve the contraction and the stroke volume without destabilizing the electrophysiology of the heart ...
File
... –Hypernatremia-blocks contractions –Hyperkalemia-can cause cardiac arrest; hypo makes cells harder to stimulate ...
... –Hypernatremia-blocks contractions –Hyperkalemia-can cause cardiac arrest; hypo makes cells harder to stimulate ...
Information for the public (Word)
... Other complications that can occur during support with an LVAD include kidney failure, respiratory failure, haemolysis (destruction of red blood cells, leading to anaemia) and infection. The expert advisers commented that failure of the device, peripheral ischaemia and damage to the heart or aorta w ...
... Other complications that can occur during support with an LVAD include kidney failure, respiratory failure, haemolysis (destruction of red blood cells, leading to anaemia) and infection. The expert advisers commented that failure of the device, peripheral ischaemia and damage to the heart or aorta w ...
Cardiac Systolic Mechanics in Heart Failure with Preserved Ejection
... may also serve as a key prognosticator in systolic heart failure (HFrEF, defined by LVEF < 40% or < 50%).3 On the other hand, symptoms or signs of HF not completely distinguishable from subjects with HFrEF may also manifest in those with relatively preserved EF (HFpEF) as a possible distinct HF popu ...
... may also serve as a key prognosticator in systolic heart failure (HFrEF, defined by LVEF < 40% or < 50%).3 On the other hand, symptoms or signs of HF not completely distinguishable from subjects with HFrEF may also manifest in those with relatively preserved EF (HFpEF) as a possible distinct HF popu ...
MUSIC study - HAL
... Most CRT studies have demonstrated that up to 40% of patients are non-responders, presumably because mechanical dyssynchrony was absent despite a wide QRS duration (1, 5). Several methods based on the time-delay measurement of regional wall motion have been proposed to quantify LV dyssynchrony. Sing ...
... Most CRT studies have demonstrated that up to 40% of patients are non-responders, presumably because mechanical dyssynchrony was absent despite a wide QRS duration (1, 5). Several methods based on the time-delay measurement of regional wall motion have been proposed to quantify LV dyssynchrony. Sing ...
Cardiovascular Testing Guide
... imaging substance is injected into a vein at peak stress and again for a second set of resting pictures (the two are compared by the doctor). The nuclear substance most often used in our office is sestamibi (Cardiolite). Thallium may also be used. The substance adds no more risk to the stress test. ...
... imaging substance is injected into a vein at peak stress and again for a second set of resting pictures (the two are compared by the doctor). The nuclear substance most often used in our office is sestamibi (Cardiolite). Thallium may also be used. The substance adds no more risk to the stress test. ...
ACS - Faculty Sites - Metropolitan Community College
... Emergency Department with the chief complaint of chest pain for several hours. She awoke with the discomfort at 4:00AM today, and it has been a "ten out of ten" since then. The pain is substernal, radiates to her back, and is associated with moderate-to-severe shortness of breath and nausea. No prev ...
... Emergency Department with the chief complaint of chest pain for several hours. She awoke with the discomfort at 4:00AM today, and it has been a "ten out of ten" since then. The pain is substernal, radiates to her back, and is associated with moderate-to-severe shortness of breath and nausea. No prev ...
Functional MR
... • Thus, risks/benefits of surgery remain debated and indications are far more restrictive than in organic MR: if symptoms are refractory to maximal medical therapy in case of CABG • MitraClip system is of potential interest since the risk of the ...
... • Thus, risks/benefits of surgery remain debated and indications are far more restrictive than in organic MR: if symptoms are refractory to maximal medical therapy in case of CABG • MitraClip system is of potential interest since the risk of the ...
The Evolution of ICD Therapy:
... electrode is in contact with the heart and the positive (or ground) electrode is located elsewhere on the body ...
... electrode is in contact with the heart and the positive (or ground) electrode is located elsewhere on the body ...
Diastolic Heart Failure Is A Cardiac Problem-Debate - sha
... Management of AF according to published clinical practice guidelines for HFpEF to improve symptomatic HF Use of beta-blocking agents, ACE inhibitors, and ARBs for hypertension in HFpEF ARBs might be considered to decrease hospitalizations in HFpEF Nutritional supplementation is not recommended in HF ...
... Management of AF according to published clinical practice guidelines for HFpEF to improve symptomatic HF Use of beta-blocking agents, ACE inhibitors, and ARBs for hypertension in HFpEF ARBs might be considered to decrease hospitalizations in HFpEF Nutritional supplementation is not recommended in HF ...
Cardiac resynchronization therapy: could a numerical simulator be a
... heart failure. All patients had left ventricular dysfunction with ejection fraction less than 35% and the QRS duration greater than 0.12 sec. These patients were evaluated before and after BPM implantation, in particular 24h since CRT, seven days and six months since CRT, with electrocardiography an ...
... heart failure. All patients had left ventricular dysfunction with ejection fraction less than 35% and the QRS duration greater than 0.12 sec. These patients were evaluated before and after BPM implantation, in particular 24h since CRT, seven days and six months since CRT, with electrocardiography an ...
Downloaded from by guest on August 22, 2014
... and heparin-induced extracorporeal clinical benefit derived from cholesLDL precipitation (HELP). We report terol lowering is greater than one the case of a patient who showed a would expect from the minimal notable improvement of myocardial changes observed by coronary angiogperfusion after 6 months ...
... and heparin-induced extracorporeal clinical benefit derived from cholesLDL precipitation (HELP). We report terol lowering is greater than one the case of a patient who showed a would expect from the minimal notable improvement of myocardial changes observed by coronary angiogperfusion after 6 months ...
Physiological Properties Of Heart Muscle Frog Dissection
... as a pump that provides pressure to move blood to its ultimate destination. Cardiac muscle differs from skeletal muscle both morphologically and functionally. It is able to initiate its own rhythmic contractions without requiring a stimulation from outside the heart. This is due to "leaky" cell memb ...
... as a pump that provides pressure to move blood to its ultimate destination. Cardiac muscle differs from skeletal muscle both morphologically and functionally. It is able to initiate its own rhythmic contractions without requiring a stimulation from outside the heart. This is due to "leaky" cell memb ...
Out-of-Hospital Cardiac Arrest
... SCD. Delays in emergency medical services (personnel reaching a witnessed SCD individual, not having an automated external defibrillators readily available, and not initiating immediate cardiopulmonary resuscitation) may contribute to rapid deterioration of a life-threatening ventricular tachyarrhyt ...
... SCD. Delays in emergency medical services (personnel reaching a witnessed SCD individual, not having an automated external defibrillators readily available, and not initiating immediate cardiopulmonary resuscitation) may contribute to rapid deterioration of a life-threatening ventricular tachyarrhyt ...
Coenzyme Q10 as an Adjunctive in the Treatment of Chronic
... The most important findings in this study were that adjunctive treatment with 100 mg CoQ10 daily to patients with heart failure caused an increase, however slight, in maximal exercise capacity, improved symptoms related to physical activity, and increased life satisfaction. Left ventricular ejection ...
... The most important findings in this study were that adjunctive treatment with 100 mg CoQ10 daily to patients with heart failure caused an increase, however slight, in maximal exercise capacity, improved symptoms related to physical activity, and increased life satisfaction. Left ventricular ejection ...
Heart Disease - Redwood Veterinary Hospital, Vallejo CA
... “Spotty” was your typical housedog-bright and energetic. His favorite pastime, next to eating, was chasing and generally harassing the two cats that he shared the house with. Ms. Smith, “Spotty”’s owner, had brought the little guy to see me ever since he was a puppy. That was 10 years ago. Recently ...
... “Spotty” was your typical housedog-bright and energetic. His favorite pastime, next to eating, was chasing and generally harassing the two cats that he shared the house with. Ms. Smith, “Spotty”’s owner, had brought the little guy to see me ever since he was a puppy. That was 10 years ago. Recently ...
ECG - WordPress.com
... and ventricles from contracting at the same time. • Rate is 40-60 beats/minute • Bundle of His= Distal portion of the AV node • Splits into the Right and Left Bundle Branch, stimulating the right and left ventricle ...
... and ventricles from contracting at the same time. • Rate is 40-60 beats/minute • Bundle of His= Distal portion of the AV node • Splits into the Right and Left Bundle Branch, stimulating the right and left ventricle ...
File
... and ventricles from contracting at the same time. • Rate is 40-60 beats/minute • Bundle of His= Distal portion of the AV node • Splits into the Right and Left Bundle Branch, stimulating the right and left ventricle ...
... and ventricles from contracting at the same time. • Rate is 40-60 beats/minute • Bundle of His= Distal portion of the AV node • Splits into the Right and Left Bundle Branch, stimulating the right and left ventricle ...
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.