CCM Implantation
Conditions
Brief summary
Electric stimulation by cardial contractility modulation (CCM)to improve contractility and physical capacity
Interventions
Taking of blood sample
Sponsors
Study design
Eligibility
Inclusion criteria
* planned CCM Implantation * systolic left ventricular dysfunction despite of adequate therapy of heart failure (NYHA II, III, IV) * implanted pacemaker, defibrillator or pacemaker during CS intubation * written informed consent * open entryways
Exclusion criteria
* anemia Hemoglobin (HB)\<8 mg/dl * lying coronary sinus (CS) tube or CS being not able to intubate * chronic atrial fibrillation or flutter * mechanic tricuspid valve prothesis * no access via subclavian vein * patients with VVI pacemaker being stimulated 110% * idiopathic hypertrophic cardiomyopathy, restrictive constrictive cardiomyopathy or heart failure because of known inflammatory or infiltrative illnesses or constrictive illness * acute myocardial ischemia presented by angina pectoris or ECG changes under load * patients being hospitalized because of heart failure during the last month and have to be treated with intravenous diuretics or inotropic substances * acute coronary syndrome should not be implanted for at least 3 month * patients with mechanic aortic or tricuspid valve * patients after heart transplantation * patients with clinical significant ectopy, defined by \> 8.900 PVCs during 24 hours at beginning Holter monitoring * patients after hypertensive crisis * patients with acute renal failure * Ejection Fraction (EF) \> 35 * patients after left ventricular pacemaker electrode * pregnant or breast feeding women * patients with heart failure after sepsis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| positive inotropic effects by CCM stimulation | 15 minutes |
Countries
Germany