Implications of tilt-table induced faint time in patients with reflex syncope.

Objective: The aim of this study was to determine whether patients who faint earlier in the course of a tilt table study represent a separate population with a poorer prognosis or different pathophysiology. We analyzed differences across patients with different syncopal times on the tilt-table study to answer this question.

Methods: This was a retrospective, approved, chart review.

Comorbid health conditions in women with syncope.

Objective: We determine the comorbid conditions associated with syncope in women. In addition, we hypothesize a higher proportion of autonomic comorbid conditions during the female reproductive age.

Methods: We identified a cohort of patients admitted to US hospitals with the principal diagnosis of syncope.

Orthostatic syndromes differ in syncope frequency.

Background: There are conflicting opinions on whether postural tachycardia syndrome predisposes to syncope. We investigated this relationship by comparing the frequency of syncope in postural tachycardia syndrome and orthostatic hypotension.

Methods: We queried our autonomic laboratory database of 3700 patients.

A comparison of dysautonomias comorbid with cyclic vomiting syndrome and with migraine.

Unlabelled: Cyclic vomiting syndrome (CVS) shares many features with migraine headache, including auras, photophobia, and antimigrainous treatment response being traditionally viewed as a migraine variant. Aims. To determine whether CVS is associated with the same disorders as migraine headache, and compare these associations to those in healthy control subjects.

Hypotension unawareness in profound orthostatic hypotension.

Background: Clinicians depend on history given by the patients when considering the diagnosis of orthostatic hypotension.

Methods: Patients with a decrease in systolic blood pressure more than 60 mm Hg from baseline during a head-up tilt table test were included. They were classified according to their symptoms during the head-up tilt table test.

Postural tachycardia syndrome with asystole on head-up tilt.

Enhanced sympathetic activity causes an exaggerated heart rate response to standing in the postural tachycardia syndrome (POTS). All patients describe symptoms of orthostatic intolerance such as dizziness, blurred vision, shortness of breath, palpitations, tremulousness, chest discomfort, headache, lightheadedness and nausea, but only one third suffer loss of consciousness. We report four patients with POTS, who had long ventricular pauses (i.

Evaluation of a brief cardiovascular autonomic screen.

Objective: To test the validity and practicality of a simple, rapid autonomic cardiovascular evaluation (RACE).

Introduction: Assessment of the autonomic nervous system is costly and time consuming. Consequently, briefer measures are often utilized as evaluations of autonomic function.