What is the most common complication associated with succinylcholine administration in pediatric patients?

Succinylcholine is a depolarizing neuromuscular blocker widely used in rapid sequence intubation due to its quick onset and short duration of action. In pediatric patients, one of the most significant complications associated with its administration is rhabdomyolysis with hyperkalemia. This is particularly relevant because children, especially those with certain preexisting conditions, may have an increased risk of developing hyperkalemia after succinylcholine administration.

The mechanism behind this complication involves the release of potassium from within the muscle cells into the bloodstream, which can occur after muscle injury or damage, as seen with succinylcholine's depolarizing action. In cases where there is an existing myopathy or recent trauma, the risk for rhabdomyolysis is further heightened.

While bradycardia and hypotension can occur with succinylcholine, particularly during intubation due to vagal stimulation or other factors, they are not as commonly seen as the risk of rhabdomyolysis and subsequent hyperkalemia. Encephalopathy is also a complication associated with succinylcholine but is extremely rare compared to the others, especially in the pediatric population. Thus, understanding the profile of succinylch