Clinical Research Directory

Inclusion Criteria: * Adult patients 40 years of age or older who present to the Emergency Department with syncope or presyncope. * Subjects must read and speak English or Spanish. * Subjects must have a working phone number and fixed address. Exclusion Criteria: * Patient who have a syncope mimic such as seizure, stroke, head trauma with loss of consciousness, altered mental status, hypoglycemia, intoxication, or require an intervention to restore consciousness. * Patients who have a new serious diagnosis found in the Emergency Department, such as death, significant cardiac arrhythmia (see below), myocardial infarction, significant structural heart disease, stroke (both ischemic and hemorrhagic), pulmonary embolism, aortic dissection, hemorrhage or anemia requiring blood transfusion, subarachnoid hemorrhage, cardiopulmonary resuscitation, acute surgical illness, pregnancy, or major traumatic injury. * Significant cardiac arrhythmia includes Ventricular Fibrillation, Ventricular tachycardia (\>30 secs), Symptomatic ventricular tachycardia, (\<30 secs), Sick sinus disease with alternating sinus bradycardia and tachycardia, Sinus pause \> 3 seconds, Mobitz type II atrioventricular heart block, Complete heart block, Symptomatic supraventricular tachycardia (including Paroxysmal Supraventricular Tachycardia (PSVT), rapid atrial fibrillation/ flutter), Symptomatic bradycardia (pulse\<40), Pacemaker or implantable cardioverter-defibrillator malfunction with cardiac pauses.