USE OF ROCURONIUM IN A PREGNANT PATIENT WITH AN OPEN EYE INJURY, RECEIVING MAGNESIUM MEDICATION, FOR PRETERM LABOR

We present a case where rocuronium 80 mg (3 x ED(50)) was used in a ra pid sequence induction in a 80-kg pregnant patient with an open eye in jury. The patient was also receiving magnesium 2 g h(-1) i.v. for pret erm labour. The expected duration for neuromuscular block of rocuroniu m in the absence of magnesium would be approximately 53 min; with infu sion of magnesium, the duration of neuromuscular block was prolonged f our-fold (215 min). It is important to remember that magnesium potenti ates the effects of all non-depolarizing neuromuscular blocking agents , including rocuronium.