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bio310 test2 with answers
bio310 test2 with answers

... Capillary pressure increases C. Interstitial fluid pressure decreases D. Interstitial osmotic pressure increases 7. In an electrocardiogram, the QRS complex represents the A. depolarization of the atria. B. repolarization of the atria. C. depolarization of the ventricles. D. repolarization of the ve ...
MADIT-I and MADIT-II
MADIT-I and MADIT-II

... The MADIT-I study was designed as a proof-of-concept study to determine through a randomized trial if ICD therapy would result in improved survival in coronary patients at high risk for sudden death when compared to conventional medical therapy. Over the course of 4 years, 196 patients were enrolled ...
CME Credit Application Form (1 CME credit)
CME Credit Application Form (1 CME credit)

... A routine assessment of left ventricular function is important because the presence of left ventricular dysfunction is associated with a poor prognosis. Most patients with ventricular dysfunction have systolic dysfunction. The presence of previous coronary heart disease is associated with a h ...
Low-oxygen environment leads to heart
Low-oxygen environment leads to heart

... muscle to regenerate is quickly lost in the following weeks as the animal ages and cardiomyocytes are bathed in the oxygen-rich environment of the beating heart, causing damage to the cells. "The adult human heart is not capable of any meaningful repair following a heart attack, which is why heart a ...
PDF - Journal of Clinical and Translational Research
PDF - Journal of Clinical and Translational Research

... number of action potentials within one burst, as reproduced by Karemaker in his experiments) [9], lowering pressure lability [10]. This action is due to enhancement of baroreceptor afferent traffic [9] and probably also to central facilitation of the reflex, perhaps at the cardiac vagal motoneurons ...
heart
heart

... urinary excretion of Na (similar to atrial natriuretic peptide)  Plasma concentrations of BNP are increased in diseases characterized by an expanded fluid volume e.g renal failure, primary aldosterodism and CHF.  Patients with a BNP concentration < 20 pmol/L are unlikely to have CHF and those with ...
Systemic and Pulmonary Artery Compliance: Lessons
Systemic and Pulmonary Artery Compliance: Lessons

... All of this pathobiology is particularly relevant to the syndrome of heart failure with a preserved ejection fraction (HFpEF), impacting over 15 million patients worldwide. This syndrome is really a compendium of co-morbidities, some of the heart, but also of other organs, including the lung as PAH ...
Approach to an infant with cyanotic heart disease
Approach to an infant with cyanotic heart disease

... 30–50% of small defects close spontaneously, most frequently during the 1st 2 yr of life. Small muscular VSDs are more likely to close (up to 80%) than membranous VSDs are (up to ...
Impaired gas exchange in congestive heart failure
Impaired gas exchange in congestive heart failure

... This article reviews assisted ventilation of the newborn, highlighting the concepts of pulmonary mechanics, gas exchange, respiration control, and lung. Most types of heart disease if left untreated can lead to heart failure. Many other conditions that directly or indirectly affect the heart can als ...
CONGESTIVE CARDIAC FAILURE 1 CONGESTIVE CARDIAC
CONGESTIVE CARDIAC FAILURE 1 CONGESTIVE CARDIAC

... extremities receive less blood and without blood keeps them warm certain parts of their bodies feel cold. These symptoms are mainly experienced by people who have chronic or severe heart failure. ...
Heart Rate Variability and its Relation to Ventricular tachycardia in
Heart Rate Variability and its Relation to Ventricular tachycardia in

... variability (HRV) and the loss of protective vagal reflexes are associated with an increased incidence of arrhythmic deaths following myocardial infarction (Valkama 1993). Power spectral analysis and time domain analysis of heart rate variability have the potential to quantify the cardiac autonomic ...
ppt
ppt

... Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure • OPT ...
Case presentation - Middle East Critical Care Assembly
Case presentation - Middle East Critical Care Assembly

... provides the only realtime bedside diagnostic tool that can diagnose some of the potentially reversible causes of cardiac arrest and can be regarded as analogous to pulse oximetry or ECG monitoring. ...
Calculating Heart Rate Poster
Calculating Heart Rate Poster

... Out-of-sequence extra beats known as extrasystoles, with QRS intervals similar to adjacent sinus beats. Atrial depolarisation waves, unlike normal P waves, may occur before or within the extra QRS traces. REASON: May be a warning of atrial flutter, fibrillation or tachycardia but usually benign. ...
Cardiac Physiology
Cardiac Physiology

... – Recording part of electrical activity induced in body fluids by cardiac impulse that reaches body surface – Not direct recording of actual electrical activity of heart – Recording of overall spread of activity throughout heart during depolarization and repolarization – Not a recording of a single ...
American HEART Month February is How Common is Sudden
American HEART Month February is How Common is Sudden

... syndrome, Wolff Parkinson White syndrome). • Heart valve disorders (e.g., Mitral Valve Prolapse). • Other causes of SCA among people who do not have heart disease include recreational drug use, electrocution, and commotio cordis, a disruption in the heart rhythm due to a sudden blow to the chest. ...
10circinsuff
10circinsuff

... of Circulatory Failure outside heart Acute  capilarovenous congestion  acute venostasis  cyanosis (5g% of red. hemoglobin!)  cardial hydrops edema ...
No significant difference in risk of heart failure hospitalization with
No significant difference in risk of heart failure hospitalization with

... with dipeptidyl peptidase-4 inhibitors (DPP-4i) compared to placebo, which was statistically significant for saxagliptin (SAVOR-TIMI 53) and non-significant for alogliptin (EXAMINE).2,3 The post-hoc analysis from the SAVOR-TIMI study suggested that the increased risk for HF hospitalization might hav ...
Revascularization of chronic total occluded coronary arteries
Revascularization of chronic total occluded coronary arteries

Nessun titolo diapositiva
Nessun titolo diapositiva

... Evidence for Congestion (elevated filling pressures) ...
- SlideBoom
- SlideBoom

... developing Congestive Heart Failure. Viral diseases may contribute to this condition. CHF sometimes occurs for unidentified reasons, also. This condition may accompany other medical-problems,-for-instance. Medical authorities caution that people with certain lifestyle issues may run a higher risk of ...
Cardiac Pacemakers
Cardiac Pacemakers

... Patni specializes in the design and engineering of Class II and III medical devices and is a global leader in providing high-quality, reliable, and cost effective Product Engineering and IT Services. One of the company strategies is to increase the volume and frequency of new product introductions, ...
Implementation of Body Surface Potential Map of QRST Integral
Implementation of Body Surface Potential Map of QRST Integral

... One   final   motivation   for   the   use   of   SAI   QRST   is   to   determine   whether   or   not   cardiac   resynchronization  therapy  (CRT)  will  be  successful.    Currently  around  one  third  of  patients  do   not  improve ...
Document
Document

... or excluding the presence of significant obstructive CHD in patients with life-threatening ventricular arrhythmias or in survivors of SCD, who have an intermediate or greater probability of having CHD by age, symptoms, and gender. (Class IIa level C) ...
Doc - Medtronic
Doc - Medtronic

...  The FlexCath Advance Steerable Sheath, which helps deliver and position the cryoballoon in the left atrium;  The Achieve Mapping Catheter, an intra-cardiac electrophysiology recording catheter used to assess pulmonary vein isolation;  The Freezor MAX Cardiac Cryoablation Catheter, which is a sin ...
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Cardiac contractility modulation



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.
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