Suxamethonium frequently causes bradycardia, especially with a second dose in children.
The only reported predictable feature of fetal heart rate patterns in response to uterine rupture is the sudden onset of fetal bradycardia.
Thirty seconds after the injection of suxamethonium, the patient developed a bradycardia and suffered cardiac arrest.
Right heart insufficiency and pulmonary hypertension may precipitate bradycardia and systemic hypotension, when the organic iodine solution is injected.
Adverse effects include bradycardia, hypotension and vasodilatation due to reduced sympathetic drive, histamine release and specific vagal effects.