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  • Title: Prolonged Paralysis Following Emergent Cesarean Section with Succinylcholine Despite Normal Dibucaine Number.
    Author: Ellison M, Grose B, Howell S, Wilson C, Lenz J, Driver R.
    Journal: W V Med J; 2016; 112(2):44-6. PubMed ID: 27025119.
    Abstract:
    Prolonged paralysis due to a quantitative or qualitative deficiency of pseudocholinesterase activity is an uncommon but known side effect of succinylcholine. We describe a patient who experienced prolonged paralysis following administration of succinylcholine for general anesthesia and endotracheal intubation for an emergent cesarean section despite laboratory evidence of normal enzyme function. The patient required mechanical ventilation in the intensive care unit for several hours following surgery. The patient was extubated following return of full muscle strength and had a good outcome. The enzyme responsible for the metabolism of succinylcholine, pseudocholinesterase, was determined to be low in quantity in this patient but was functionally normal. This low level, by itself, was unlikely to be solely responsible for the prolonged paralysis. The patient likely had an abnormal pseudocholinesterase enzyme variant that is undetectable by standard laboratory tests.
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