…the most common form of neurally mediated syncope (NMS), a disorder of autonomic reflexes. It typically occurs after attaining an upright posture or following painful…

…renal failure, sleep apnoea). Suspected hypotension: dizziness, syncope, autonomic dysfunction, adverse drug effects. Wide variability between measurements. Hypertension in pregnancy. Contraindications There are no absolute…

…orthostatic hypotension, or impaired autonomic compensation limits tolerability. Evidence Base and Its Limitations Few adults aged 85 years or older have been included in randomized…

…Beyond its direct cellular actions, digoxin exerts significant systemic effects via the autonomic nervous system. It attenuates carotid sinus baroreceptor activity and acts centrally and…

…pronounced as the intensity of exercise increases. The autonomic nervous system is the first system to react to exercise. It does so by withdrawing parasympathetic…

…variations in heart rate are due to variations in the activity of the autonomic nervous system and changes in the automaticity of the sinoatrial node…

…and nervousness. This is due to altered tone in the autonomic nervous system, with increased sympathetic input (leading to stimulation of beta adrenergic receptors) and…

…and sometimes several within a short period 24 to 72 hours Increasing autonomic hyperactivity and risk of complicated withdrawal 48 to 96 hours Delirium tremens…

…can raise the blood pressure. Serotonin syndrome can also cause autonomic instability and hypertension [4]. Step 2: look systematically for acute organ damage Organ or…

…Symptoms Autonomic symptoms Early warning symptoms are due to sympathetic activation: sweating tremor palpitations hunger anxiety pallor paraesthesiae Neuroglycopenic symptoms An inadequate supply of glucose…

…Indications, dosing and effects Note that abrupt changes in blood pressure activate autonomic reflexes that influence the haemodynamic result. Reflex tachycardia is the rule after…

…Beta blockade, a pacemaker and autonomic neuropathy can at the same time mask the expected tachycardia. Aids to assessment The shock index is calculated as…

…does not exclude clinically important CCS. Silent or minimally symptomatic disease may occur in patients with diabetes and autonomic neuropathy, as well as in older…

…contexts [4]. Reduction of Sympathetic Drive Modulating autonomic tone is a pivotal therapeutic target [4]: Beta Blockers : Administered to reduce adrenergic stimulation [4]. Sedation and…

…important electrolyte imbalance, and hyperthyroidism Systolic blood pressure <90 mmHg, with increased risk of hypotension in patients with autonomic dysfunction, hypovolemia, or severe coronary or…

…permanent bradycardia). Hypothyroidism. Medullar lesion. Increased intracranial pressure. General hypoxia. Autonomic nervous system Neurocardiogenic syncope. Carotid Sinus Hypersensitivity. Electrolyte disturbances Hypokalemia. Hyperkalemia. Hypercalcemia. Benign causes…