Paroxysmal sympathetic hyperactivity (PSH) is a disorder in the regulation of autonomic function most commonly observed in patients with acute brain injury, most notably severe traumatic brain injury (TBI) . It manifests with recurrent episodes of excessive sympathetic activity that start rapidly, are often induced by stimulation, and resolve ...

2022年7月6日 · Paroxysmal sympathetic hyperactivity (PSH) is a pattern of recurrent bursts of dysregulated sympathetic activity, resulting from severe brain injury. These episodes of sympathetic activation are short, dramatic, and often triggered by stimulation.

Paroxysmal sympathetic hyperactivity (PSH) is a syndrome that causes episodes of increased activity of the sympathetic nervous system. Hyperactivity of the sympathetic nervous system can manifest as increased heart rate, increased respiration, increased blood pressure, diaphoresis, and hyperthermia. [1]

Paroxysmal sympathetic hyperactivity (PSH) is a relatively common, but often unrecognized, complication of acute diffuse or multifocal brain diseases, most frequently encountered in young comatose patients with severe traumatic brain injury. It is presumed to be caused by loss of cortical inhibitory …

2022年11月18日 · 阵发性交感神经过度兴奋（Paroxysmal sympathetic hyperactivity，PSH）是一种临床综合征，在严重的急性脑损伤患者中表现为阵发性发作和短暂交感神经兴奋体征（心动过速、高血压、呼吸急促、发热、出汗和肌张力增高及异常姿势）。PSH曾有多种不同名称，如自主神 …

2023年11月13日 · Paroxysmal sympathetic hyperactivity (PSH) is a syndrome associated with antecedent brain injury characterized by episodes of sympathetic overdrive, primarily manifested as episodic vital sign instability (tachycardia, tachypnea, hyperthermia, hypertension) with increased neuromuscular tone and other clinical manifestations, such as diaphoresis ...

2023年11月1日 · Paroxysmal Sympathetic Hyperactivity (PSH) is a syndrome of disproportionate and pathological sympathetic overreaction that can be triggered by nociceptive or environmental stimuli, 1 which occurs after severe acquired brain injury.

A substantial minority of patients who survive an acquired brain injury develop a state of sympathetic hyperactivity that can persist for weeks or months, consisting of periodic episodes of increased heart rate and blood pressure, sweating, hyperthermia, and motor posturing, often in response to external stimuli.

Paroxysmal sympathetic hyperactivity (PSH) is a clinical disorder mainly caused by traumatic brain injury, stroke, encephalitis and other types of brain injury. The clinical features are episodes of hypertension, tachycardia, tachypnea, fever and dystonic postures.

General principles in the management of paroxysmal sympathetic hyperactivity include adequate hydration, exclusion of mimicking conditions (infection, pulmonary embolism, hydrocephalus, epilepsy), effective analgesia, and avoidance of triggers, when identified.