Atrial near-field and ventricular far-field analysis by automated signal processing at rest and during exercise.

Introduction: Sophisticated monitoring of atrial activity is a prerequisite for modern pacemaker therapy. Ideally, near-fields and ventricular far-fields ought to be distinguished by beat-to-beat template analysis of the atrial signal. A prerequisite is that atrial signals are stable under different conditions.

Late relapse of testicular cancer.

Due to its unique biological behavior, late relapse (LR) of testicular cancer has recently been described as an own tumor entity. It is currently defined as tumor recurrence more than 2 years after complete remission following primary treatment including chemotherapy. The incidence ranges from 2 to 6%, with a median relapse-free interval of 5.