The most common presentations of presyncope and syncope secondary to this autonomic dysfunction include vasovagal syncope, neurogenic orthostatic hypotension, and postural tachycardia syndrome. The most sensitiv
Underlying biological mechanisms leading to the dramatically increased cardiac mortality in patients with schizophrenia (SCZ) are largely unknown. Cardiac autonomic dysfunction (CADF), which has been extensively described in patients with SCZ, represents
Cardiovascular autonomic dysfunction (CVAD) is a malfunction of the cardiovascular system caused by deranged autonomic control of circulatory homeostasis. CVAD is an important component of post-COVID-19 syndrome, also termed long COVID, and might affect one-third of highly symptomatic patients with CO...
Vasovagal syncope- a common cause of fainting, vasovagal syncope occurs when the ANS abnormally responds to a trigger (disturbing sights, straining at stool, standing for prolonged periods) by slowing the heart rate and dilating the blood vessels in the legs, allowing blood to pool in the lower...
While it is presumed based on the description that these two patients had both orthostatic hypotension and vasovagal syncope, it is unclear how these diagnoses were made and what role deconditioning may have played, as one patient was admitted to the ICU. The median age of patients in this ...
Sympathetic adrenergic testing (in conjunction with cardiovagal and sudomotor function testing) has been shown to aid in diagnosis, management and outcomes in patients with autonomic dysfunction or syncope of unexplained cause(Gibbons & Freeman, 2006; Faraji, et al., 2011; Sundkvist, 1981; ...
3.Objective To assess the role of autonomic nervous function during orthostatic tolerance tests (OTT) in pilots with history of G induced loss of consciousness (G LOC) or vasovagal syncope (VVS).目的评价加速度引起的意识丧失 (G LOC)或血管迷走性晕厥 (VVS)飞行员在立位耐力试验(OTT)条件下自主神...
We found no significant demographic differences or risk factors between the control group and the group with syncope, so we infer that both are comparable. The data, according to the tests, can be considered a normal distribution throughout the protocol. When comparing the results of the means ...
Sheldon RS, Grubb BP, Olshansky B et al (2015) 2015 Heart Rhythm Society expert consensus statement on the diagnosis and treatment of postural tachycardia syndrome, inappropriate sinus tachycardia, and vasovagal syncope. Heart Rhythm 12:e41–e63. https://doi.org/10.1016/j.hrthm.2015.03.029 Artic...
Lightheadedness or presyncope related to systemic causes such as dehydration, hypotension, vasovagal reaction, or anxiety are often diagnosed clinically and do not require imaging evaluation of the central nervous system. Of note, persistent isolated dizziness may also result from autonomic dysfunction,...