Influence on autonomic balance during head-up tilt of endoscopic transthoracic sympathicotomy
نویسندگان
چکیده
منابع مشابه
Influences of bilateral endoscopic transthoracic sympathicotomy on cardiac autonomic nervous activity.
OBJECTIVES Endoscopic transthoracic sympathicotomy (ETS) is a minimal invasive procedure of thoracic sympathetic blockage. The purpose of this study was to evaluate cardiac autonomic nervous activity after ETS in order to confirm the reliability and safety of ETS. METHODS A series of electrophysiological studies were performed before and 1 week after bilateral 2nd and 3rd thoracic sympathicot...
متن کاملEffects of age and hypertension on autonomic nervous regulation during passive head-up tilt.
To study the effects of age and hypertension on autonomic nervous function with passive postural change, we examined 31 normotensive subjects (25 to 85 years old) and 31 hypertensive patients (21 to 71 years old) without any cardiac disease, diabetes mellitus, or neurological disorders. Subjects were passively placed in a 60 degrees head-up tilting position after 15 minutes in the supine positi...
متن کاملLeg intravenous pressure during head-up tilt.
Leg vascular resistance is calculated as the arterial-venous pressure gradient divided by blood flow. During orthostatic challenges it is assumed that the hydrostatic pressure contributes equally to leg arterial, as well as to leg venous pressure. Because of venous valves, one may question whether, during orthostatic challenges, a continuous hydrostatic column is formed and if leg venous pressu...
متن کاملLeg vasoconstriction during head-up tilt in patients with autonomic failure is not abolished.
Maintaining blood pressure during orthostatic challenges is primarily achieved by baroreceptor-mediated activation of the sympathetic nervous system, which can be divided into preganglionic and postganglionic parts. Despite their preganglionic autonomic failure, spinal cord-injured individuals demonstrate a preserved peripheral vasoconstriction during orthostatic challenges. Whether this also a...
متن کاملEffects of endoscopic transthoracic sympathicotomy on hemodynamic and neurohumoral responses to exercise in humans.
Endoscopic transthoracic sympathicotomy (ETS) is a minimal invasive procedure of thoracic sympathetic block and has been used successfully in the treatment of primary palmar hyperhidrosis. To examine the effect of Th 2-3 ETS on hemodynamic responses to submaximal upright treadmill exercise in humans, cardiac output, plasma noradrenaline and adrenaline at rest and during the last 40s of stage 2 ...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1996
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(96)81693-7