No abstract

No abstract

Preoperative atrial fibrillation is a predictor of postoperative complications, including death, and of a significant reduction in patients' long-term survival. Patients with preoperative atrial fibrillation should be considered as high-risk patients with potential postoperative complications and should be well protected with antiarrhythmic and anticoagulant therapy.

HRT parameters correlate strongly with HRV parameters indicating that HRT should be considered as a reflection of both baroreceptors response and overall autonomic tone. Heart rate dependence of turbulence slope indicates the need to adjust this parameter for heart rate.