Search results
Results From The WOW.Com Content Network
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 ]
Because the adrenergic storm overlaps with so many other similar conditions, such as hypertensive crises, stimulant intoxication or overdose, or even panic attack, and because the treatments for these overlapping conditions are largely alike, it is not necessary to obtain a differential and definitive diagnosis before initiating treatment.
Psychomotor agitation is a symptom in various disorders and health conditions. It is characterized by unintentional and purposeless motions and restlessness, often but not always accompanied by emotional distress and is always an indicative for admission.
Paroxysmal sympathetic hyperactivity; Pathophysiology of nerve entrapment; Pectoralis minor syndrome; Peripheral mononeuropathy; Peripheral neuropathy; Piriformis syndrome; Plexopathy; Polyneuropathy; Postural orthostatic tachycardia syndrome; Primary autonomic failure; Pronator teres syndrome; Proximal diabetic neuropathy; Pudendal nerve ...
An automatic tachycardia is a cardiac arrhythmia which involves an area of the heart generating an abnormally fast rhythm, sometimes also called enhanced automaticity.These tachycardias, or fast heart rhythms, differ from reentrant tachycardias (AVRT and AVNRT) in which there is an abnormal electrical pathway which gives rise to the pathology.
The sympathetic nervous system uses noradrenaline, a catecholamine, as a chemical messenger or neurotransmitter, which can promote arrhythmias in those with CPVT. [ 2 ] To prevent this, a region of the sympathetic nervous system can be intentionally damaged in an operation known as cardiac sympathetic denervation or sympathectomy. [ 29 ]
An increase in sympathetic nervous system stimulation causes the heart rate to increase, both by the direct action of sympathetic nerve fibers on the heart and by causing the endocrine system to release hormones such as epinephrine (adrenaline), which have a similar effect. Increased sympathetic stimulation is usually due to physical or ...
Extra-cardiac stimulation of the sympathetic nervous system (inappropriate stimulation of the sympathetic and parasympathetic, particularly the vagus nerve, (which innervates the heart), can be caused by anxiety and stress due to acute or chronic elevations in glucocorticoids and catecholamines. [1]