Cardiac MR (CMR) will be used to assess myocardial activation and hemodynamics in patients with CRT. Goals are to demonstrate that * differences in Left ventricle (LV)- right ventricle (RV) pacing delays cause differences in myocardial act
Hypovolemia and acute circulatory failure affects more than 60% of patients hospitalized in intensive care or resuscitation. The volume expansion (VE) by fluid replacement therapy is the first treatment improve circulatory function.