Box 2.

Dysautonomic cardio- and cerebro-vascular complications of Guillain–Barré syndrome4

Sinus tachycardia.
Bradyarrhythmias (bradycardia, asystole; precipitated by suctioning or other manoeuvres).
Sudden cardiac death.
Tachyarrhythmias (atrial fibrillation or flutter, paroxysmal atrial tachycardia, ventricular tachycardia).
Orthostatic hypotension.
Electrocardiogram changes (elevation or depression of ST segments, flat or inverted T waves, QT interval prolongation, axis deviation, and conduction block).
Sustained or paroxysmal hypertension.
Paroxysmal hypotension.
Hypersensitivity to vasoactive drugs.
Takotsubo cardiomyopathy.5
‘Pseudo-anginal’ chest pain.
Posterior reversible encephalopathy syndrome.
Reversible cerebral vasoconstriction syndrome. 6
Subarachnoid haemorrhage.
Intracerebral haemorrhage.7
Ischaemic stroke.8