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Cardiovascular System: The Heart
Cardiovascular System: The Heart

...  Reperfusion damages the tissue further due to the formation of oxygen free radicals from the reintroduced oxygen. ...
Cardiovascular System: The Heart
Cardiovascular System: The Heart

...  Left ventricle – receives blood from left atrium.  Trabeculae carneae – bundles of cardiac muscle tissue.  Chordae tendineae – connects to the cusps of the bicuspid valve which are connected to papillary muscles.  Aortic valve into the ascending aorta (largest artery). ...
Clinical features and surgical outcomes of complete transposition of
Clinical features and surgical outcomes of complete transposition of

... the postoperative complication and mortality between the coronary artery patterns. Further, among the 8 patients with unusual coronary artery patterns, one patient with intramural LCA expired due to postoperative uncontrolled VT, and the other 7 patients survived without any coronary events. This ma ...
Evaluation of Left Ventricle Systolic and Diastolic
Evaluation of Left Ventricle Systolic and Diastolic

... in other reports. Our study agreed with the results of these reports, which indicated a significantly higher heart rate in Down syndrome subjects than in normal children (2123). This finding is considered to be due to the autonomic cardiac dysfunction occurring at the central brain stem site as a re ...
Intrauterine hydrops caused by premature closure of the foramen
Intrauterine hydrops caused by premature closure of the foramen

Free PDF - European Review for Medical and
Free PDF - European Review for Medical and

... and related costs of patients with HF are very high, and it becomes one of the major problems of society3. Although big progress has been made in diagnosis and management of CHF, long-term prognosis is still not optimistic. Many studies show that early diagnosis and accurate judgement of severity of ...
Pulmonary atresia with intact ventricular septum
Pulmonary atresia with intact ventricular septum

... the cases reported by Taussing [19601 under type I had a membrane in the left auricle that partially obstructed the mitral valve, similar to the membrane in the right auricle of our Patient 1.The significance of this finding is not known. We think that type I is the result of a right ventricular out ...
Ventricular Premature Contractions
Ventricular Premature Contractions

... Dante recorded in his Vita Nuova how when he first saw Beatrice he became for the first time uneasily aware of his own heart beat, his heart skipped a beat, and then seemed to beat again with “trembling violence”. We know virtually nothing of Beatrice, other than Dante was obviously in love with he ...
Cardiology - Pericardial Effusion
Cardiology - Pericardial Effusion

... the most definitive test. The fluid-filled area between the heart and pericardium can be visualized. If a tumor is present, it may be seen as well, although even large volumes of pericardial effusion can be produced by some tumors that are initially too small to be seen on ultrasound. Depending upon ...
Cardiac
Cardiac

... Medium to moderate holes will cause problems when the pressure in the right side of the heart decreases and blood will start to flow to the path of least resistance (from the left ventricle through the VSD to the right ventricle and into the lungs) This will generally lead to CHF ...
Glossary - CardioNet
Glossary - CardioNet

... ablation – a therapeutic method in which a form of energy is used to physically destroy a small section of damaged heart tissue that is a source of abnormal electrical activity causing or contributing to some types of tachycardia (fast heartbeat). American Heart Association (AHA) – an organization w ...
The Cardiovascular System: The Heart
The Cardiovascular System: The Heart

...  AV valves prevent backflow into the atria when ventricles contract  Chordae tendineae anchor AV valves to papillary muscles ...
pics
pics

...  AV valves prevent backflow into the atria when ventricles contract  Chordae tendineae anchor AV valves to papillary muscles ...
to the Session 3 notes
to the Session 3 notes

... If ECG complexes in Leads I, II, III and aVF are not predominantly positive, check that leads are attached to correct legs – if lead placement is correct, then an axis deviation is present. ...
2. Langendorff Heart
2. Langendorff Heart

... during diastole when the aortic valves are closed, the perfusate flows through the coronary arteries. After passing through the coronary vascular system, the perfusate enters the right atrium via coronary sinus and finally flows out via the right ventricle and pulmonary artery. ...
Holter monitoring in the prognosis of sudden cardiac death
Holter monitoring in the prognosis of sudden cardiac death

... in this category are defined by high risk markers such as low ejection fraction and ventricular arrhythmias. Hence, strategies that will identify with a much higher level of accuracy within more general subgroups than current indices of individual risk prediction should be developed in order to prot ...
Ablation of left posterior fascicular tachycardia during sinus rhythm
Ablation of left posterior fascicular tachycardia during sinus rhythm

... Results The duration of VT QRS complex was 125.6±10.2 ms with RR interval 356.5±38.6 ms. The P potential and diastolic potential were all successfully mapped and 24 patients developed left posterior fascicular block in ECG and all patients having no further ventricular tachycardia induced. During fo ...
His Bundle Pacing Or Biventricular Pacing For Cardiac
His Bundle Pacing Or Biventricular Pacing For Cardiac

... left ventricular ejection fraction (LVEF) and LV dimensions. Lustgarten et al compared HBP versus biventricular pacing in a crossover design among patients with indications for CRT defibrillator implants[19]. They enrolled 29 patients and were successful in demonstrating electrical resynchronization ...
Ventricular Tachycardia
Ventricular Tachycardia

... - associated with a significant reduction in the rate of cardiac events in LQT1 and LQT2 - no evident reduction in LQT3 mutations (Moss et al., Circulation 2000) → high rate of residual cardiac events under beta-blocker therapy (Priori et al., JAMA 2004) ...
Patients With a History of HIT Who Require Cardiac Surgery
Patients With a History of HIT Who Require Cardiac Surgery

... In patients with acute or subacute HIT who require renal replacement therapy, we suggest the use of argatroban or danaparoid over other nonheparin anticoagulants (Grade 2C). Remarks: We acknowledge that the cost of argatroban may be prohibitive at some clinical centers. We further suggest that if th ...
The Very Basic`s of Pacing
The Very Basic`s of Pacing

... DDD(R) Switch Ventricular support if loss of A-V conduction is ...
Silicone Casting of the Chambers of the Heart and the Great Vessels
Silicone Casting of the Chambers of the Heart and the Great Vessels

... camera position to separate the various chambers is difficult. The cast of the heart is an anatomic 3-D representation of the cardiac chambers as seen on the nuclear medicine images (figure 2). The cast was used to determine the best camera position with which to view individual cardiac chambers. By ...
Teaching at the Bedside Using CHF as the Model
Teaching at the Bedside Using CHF as the Model

... devices or surgery. ...
ECG based workshop: Faces of Atrial Fibrillation
ECG based workshop: Faces of Atrial Fibrillation

... consideration of AF ablation today: – age < 80 years, symptomatic with their AF, – has tried but treatment has failed or is intolerant of AAD therapy, – has paroxysmal AF or short standing persistent AF, and minimal to moderate structural heart disease (such as left ventricular dysfunction or valvul ...
Classifications of Heart Murmurs
Classifications of Heart Murmurs

... those that branch from them may vary in size and configuration among individuals. The coronary arteries are located above the aortic valve. The right and left main coronary arteries originate from the aorta and then diverge to provide blood to different surfaces. Atherosclerotic plaque in these arte ...
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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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