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Heart Failure - Canis Maximus
Heart Failure - Canis Maximus

... 1. Right-sided. If the right side of the heart fails, blood returning to the heart from throughout the body backs up, and fluid accumulation is most noticeable in the liver, abdomen, and limbs. 2. Left-sided. If the left side of the heart fails, blood returning from the lungs to the heart backs up, ...
Biventricular Pacemakers - Cardiac Resynchronization Therapy for
Biventricular Pacemakers - Cardiac Resynchronization Therapy for

... Fluid Index. It has been proposed that these data may be used as an early warning system of cardiac decompensation or to provide additional feedback enabling a physician to further tailor medical therapy. ...
Atrial Fibrillation
Atrial Fibrillation

... ventricular arrhythmias, bradycardia, and depression of left ventricular function. It was further theorized that maintenance of sinus rhythm would reduce rates of thromboembolism and the need for anticoagulation; however, trial results demonstrated no significant reduction in thromboembolic risk. Pe ...
Control of the Cardiac Cycle
Control of the Cardiac Cycle

... • The shape of the ECG trace can sometimes be used to show which part of the heart is unhealthy • It can show irregular heart beat (arrhythmia) if it is in fibrillation (the beat is not co-ordinated), if it has suffered a heart attack (myocardial infarction) • It can also indicate if the heart is en ...
The coronarography HISTORICAL REVIEW Abuelenin Ahmed Kotb
The coronarography HISTORICAL REVIEW Abuelenin Ahmed Kotb

... presence of cardiac disease that cannot be evaluated adequately by noninvasive techniques. Because the risk of a major complication from cardiac catheterization is less than 1% with mortality of less than 0.08%, many doctors can perform the catheterization safely now. We must talk about X-rays, at f ...
REGULATION OF HEART PUMPING
REGULATION OF HEART PUMPING

lily of the valley
lily of the valley

... heart weakness, being quicker in acting than digital components, although less permanent. Its cardiotonic glycosides exercise this function which is increased by saponines and flavonoids, as well as asparagine, because of their diuretic action. This last property has been used for the treatment of t ...
complications of acute myocardi
complications of acute myocardi

... - clear CXR with distended jugular veins in an inferior AMI suggests RV infarction - ST elevation in V3R to V5R and characteristic haemodynamic findings on right heart catheterisation (elevated right atrial and RV EDP with normal to low PAoP & low cardiac output) confirm the diagnosis - right ventri ...
O2-1 Significance of Premature Restriction or Closure of Foramen
O2-1 Significance of Premature Restriction or Closure of Foramen

... cavity imitating hypoplastic left heart, partial obstruction of left ventricular inflow, and premature atrial contractions were other additional findings. One fetus who was born prematurely at 26 weeks died after birth, two foetuses had to be delivered early at 37 weeks of gestation due to severe re ...
the current role of echocardiography in cardiac resynchronization
the current role of echocardiography in cardiac resynchronization

... Revised patient selection guidelines focused on ECG criteria specifically more clearly favoring patients with left bundle branch block (LBBB) ≥150 ms [12, 13]. There is some element of uncertainty of CRT benefit in patients with intermediate ECG criteria (QRS width 120-149 ms or non-LBBB). ...
Atrial Fibrillation - Developinganaesthesia
Atrial Fibrillation - Developinganaesthesia

... “Emile” have tried to define what the “perfect society” ought to be. These works were based however on the wishful thinking of philosophers with little understanding of the “real world”. Machiavelli’s genius lay in his ability to assess and understand human nature as it truly is. Shocking to many of ...
HL Biology H5 - Transport 1. One type of heart disease is diastolic
HL Biology H5 - Transport 1. One type of heart disease is diastolic

... One type of heart disease is diastolic heart failure (DHF). A study was carried out to see if DHF was related to abnormalities in the diastolic properties of the left ventricle. Two groups of patients, one with DHF and the other the control group with no symptoms of DHF, were assessed to compare: ...
Anesthetic Considerations in Patient with Wolff
Anesthetic Considerations in Patient with Wolff

... In 1930, Wolff, Parkinson and White [2] described a series of patients in whom the resting surface ECG showed a short PR interval. All these patients experienced paroxysmal bouts of tachycardia. The explanation for both ECG findings in sinus rhythm and the arrhythmias seen in WPW syndrome was first ...
The Heart - Northern Highlands
The Heart - Northern Highlands

... The Heart Overview of Heart Anatomy: Use the following website to complete the following questions about the anatomy of the heart: http://www.worldinvisible.com/apologet/humbody/heart.htm ...
Sudden Cardiac Death - Heart Rhythm Society
Sudden Cardiac Death - Heart Rhythm Society

... event. Most victims do have heart diseases or other health problems, although they may not know it. There are numerous contributors to cardiac arrest, but two of the most important ones are: Coronary artery disease. This is a condition in which the arteries that supply blood to the heart are narrowe ...
Atrial Septal Defects in Dogs - Veterinary Specialty Services
Atrial Septal Defects in Dogs - Veterinary Specialty Services

... heart, as well as blood flow through its chambers. In the case of an ASD, observation of blood flow through a hole in the atrial septum leads to this specific diagnosis. Evaluation of the size of the ASD as well as the size of the right atrium and right ventricle (the pumping chamber just downstream ...
ALS course slide set - the Australian Resuscitation Council
ALS course slide set - the Australian Resuscitation Council

... 1. Is there any electrical activity? 2. What is the ventricular (QRS) rate? 3. Is the QRS rhythm regular or irregular? 4. Is the QRS width normal (narrow) or broad? 5. Is atrial activity present? (If so, what is it: P waves? Other atrial activity?) ...
Arrhythmias
Arrhythmias

... needs to be evaluated carefully. Sometimes, the cause is not heart related. Syncope accounts for 3 percent of emergency room visits and 6 percent of hospitalizations in the United States. Tachycardia: a fast heart rate of more than 100 beats a minute, either regular or irregular in rhythm. Tachycard ...
Cardiovascular System: Heart
Cardiovascular System: Heart

... Cardiac Electrophysiology The autonomic nervous system can also directly affect conduction velocity at the AV node; these effects are called dromotropic effects Positive dromotropic effects: ...
Vasodilator therapy, afterload and preload reduction
Vasodilator therapy, afterload and preload reduction

... with severe sepsis or septic shock, for example, early goaldirected therapy in the emergency room aimed at maintaining central venous oxygen saturation at more than 70% significantly reduced in-hospital mortality (Rivers et al., 2001). On the other hand, institution of treatment. aimed at achieving ...
Comparative Vertebrate Physiology
Comparative Vertebrate Physiology

... Arteries arise from base of aorta Venous blood empties into the right atrium ...
Cardiology Conference
Cardiology Conference

... • If the left-to-right shunt is large, precordial activity is increased • The apical impulse is laterally displaced • A thrill may be present in the suprasternal notch or in the left infraclavicular region • The first heart sound is typically normal. The second heart sound (S2) is often obscured by ...
Comprehending Cardiac Medications: Foundational Cardiac
Comprehending Cardiac Medications: Foundational Cardiac

...  Only up to a certain point will this continue, then further stretching may actually decrease contractility. This is what will happen with patients with chronic heart failure.  Drugs that cause venous dilation (nitrates)-DECREASE preload.  Diuretics that eliminate excess fluid volume DECREASE pre ...
nuclear blood pool imaging, cardiac blood pool, heart - e
nuclear blood pool imaging, cardiac blood pool, heart - e

... Cardiac blood pool imaging, gated equilibrium: planar, single study at rest or stress (exercise and/or pharmacologic), wall motion study plus ejection fraction, with or without additional quantitative processing ...
Digitalis (cardiac glycoside) poisoning
Digitalis (cardiac glycoside) poisoning

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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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