Journal of cardiovascular medicine
-
J Cardiovasc Med (Hagerstown) · Apr 2013
Adaptive servo ventilation reduces central sleep apnea in chronic heart failure patients: beneficial effects on autonomic modulation of heart rate.
Adaptive servo ventilation (ASV) is a method of ventilator support aimed to treat central sleep apnea (CSA). We investigated the effects of an acute use of ASV in chronic heart failure (CHF) patients with CSA and the potential influence on sympathetic nerve activity. ⋯ The acute use of ASV is effective on CSA by increasing oxygen saturation and reducing HR. Moreover, the significant improvement of HRV highlights ASV's benefit in moderating the sympathetic adrenergic tone.
-
J Cardiovasc Med (Hagerstown) · Apr 2013
Long-term independent predictors of positive response to cardiac resynchronization therapy.
Cardiac resynchronization therapy (CRT) is currently considered an important breakthrough in the treatment of selected patients with refractory heart failure. However, long-term predictors of mortality, morbidity and time to recovery of ventricular function for those patients who respond positively to CRT remain poorly investigated. ⋯ A better selection of patients on the basis of cause, type of bundle-branch block and basal LVESV/BSA can increase the number of patients that would benefit from CRT.