Hospital San Carlos, Madrid

This study looks at whether screening for and treating sleep apnea can improve heart rhythm in people with atrial fibrillation (AFib) who are considering a heart procedure called ablation. About 50 adults with AFib that hasn't improved with medication will be checked for sleep ap…

This study tests a new way to treat persistent atrial fibrillation (AFib) by using advanced heart mapping to find and burn specific areas that keep the abnormal rhythm going. About 78 adults with long-lasting AFib or dangerous ventricular arrhythmias will take part. The goal is t…

This study tests whether gentle brain stimulation (TMS, tDCS, or both) can slow language decline in people with primary progressive aphasia, a condition that gradually impairs speech and understanding. Over 6 months, 80 adults will receive either real stimulation or a sham (fake)…