Dynamic electrophysiological mechanism in patients with long-standing persistent atrial fibrillation.

Background: Improved understanding of the mechanisms that sustain persistent and long-standing persistent atrial fibrillation (LSpAF) is essential for providing better ablation solutions. The findings of traditional catheter-based electrophysiological studies can be impacted by the sedation required for these procedures. This is not required in non-invasive body-surface mapping (ECGI).

Endogenous arterial blood pressure increase after aneurysmal subarachnoid hemorrhage.

Objective: Spontaneous blood pressure rise is a frequently observed phenomenon following aneurysmal subarachnoid hemorrhage (SAH). Facing the risk of aneurysmal rebleeding and the occurrence of delayed cerebral ischemia it is unclear how to react to these endogenous-driven blood pressure changes, as their predictive value for clinical course and functional outcome is still unknown.

Patients And Methods: Endogenous blood pressure characteristics within 21 days after SAH were retrospectively analyzed in 93 patients.