ORIGINAL ARTICLESPlasma endothelin during upright tilt: relevance for orthostatic hypotension?
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Vasopressin vs noradrenaline: Have we found the perfect recipe to improve outcome in septic shock?
2019, Journal of Critical CareCitation Excerpt :Vasopressin increases mean arterial pressure [21]; maintains cardiac output [22]; improves renal function [23]; and reduces the dependence on catecholamines like noradrenaline [24]. The basis of using vasopressin stems from studies reporting a deficiency of baroreceptor-mediated release of vasopressin in septic shock [5], possibly due to primary autonomic failure, sympathetic dysfunction and depletion of neurohypophysial stores [25-27]. In patients with suppressed response to catecholamines, infusions of vasopressin enhanced the response to vasopressin.
Autonomic involvement in Parkinsonian carriers of PARK2 gene mutations
2015, Parkinsonism and Related DisordersCitation Excerpt :Another relevant finding supporting the presence of sensory neuropathy in PARK2 patients of our study is the significant increase of AVP both in supine and standing positions in PARK2 mutation carriers compared to controls. Previous studies have suggested that the response of arginine-vasopressin (AVP) levels to baroreceptor activation (tilt testing) may be useful to study sensory afferent pathways [28]. In fact, some studies showed that hypotension induced by an upright position produced a slight increase in AVP levels in patients with sensory neuropathies in comparison with normal subjects [29].
Disorders of the Autonomic Nervous System
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2010, Dental Clinics of North AmericaCitation Excerpt :ADH, a potent vasoconstrictor, is responsible for the pallor seen during the vasovagal reflex and also contributes to a nausea effect. The ADH hormone acts during the vasovagal response by sharply decreasing cutaneous blood flow, and its increase may be considerable, reaching 46 times normal levels.15,41 This extensive increase may be responsible, along with the cathecholamine increase, for the intense fear that victims of needle phobia learn in response to their vasovagal reflex.
Orthostatic Hypotension
2007, Neurology and Clinical NeuroscienceOrthostatic hypotension in older patients
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