Autonomic dysfunction in patients with orthostatic dizziness

Neurocardiogenic syncope coexisting with postural orthostatic tachycardia syndrome in patients suffering from orthostatic intolerance: a combined form of autonomic dysfunction.

INTRODUCTION There is anecdotal evidence that one or more forms of orthostatic intolerance (OI) subgroups may coexist in the same patients. However, there is a paucity of published data on the clinical features and management of patients who suffer from coexisting features of postural tachycardia syndrome (POTS) and neurocardiogenic syncope (NCS). We herein present our experience of 18 patients...

Autonomic Dysfunction Presenting as Postural Orthostatic Tachycardia Syndrome in Patients with Multiple Sclerosis

BACKGROUND Autonomic dysfunction is common in patients suffering from multiple sclerosis (MS) and orthostatic dizziness occurs in almost 50% of these patients. However, there have been no reports on postural orthostatic tachycardia syndrome (POTS) in patients suffering from MS. METHODS The patients were included for analysis in this study if they had POTS with either a prior history of MS or ...

Sleep Disturbances and Autonomic Dysfunction in Patients with Postural Orthostatic Tachycardia Syndrome

Many patients with postural tachycardia syndrome (PoTS) suffer from fatigue, daytime sleepiness, and sleeping disturbances. The objective of this study was to compare subjective and objective sleep quality of PoTS patients with a group of healthy controls. All patients completed a Pittsburgh Sleep Quality Index questionnaire and the Epworth Sleepiness Scale. The patients sleep architecture, hea...

Cardiovascular autonomic functions & cerebral autoregulation in patients with orthostatic hypotension

BACKGROUND & OBJECTIVES Patients of orthostatic hypotension may or may not have symptoms of the cerebral hypoperfusion despite fall in the blood pressure. The present study was done to quantify autonomic functions and cerebral autoregulation in patients of orthostatic hypotension with or without symptoms. METHODS The study was conducted in 15 patients of orthostatic hypotension and 15 age, se...

reversible autonomic dysfunction during antiviral treatment in patients with chronic hepatitis c virus infection