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Continuous Midazolam Versus Diazepam Infusion for Refractory Convulsive Status Epilepticus

Department of Pediatrics, Advance Pediatric Centre, Post-Graduate Institute of Medical Education and Research, Chandigarh, India

Aruna Murthy, MD

Department of Pediatrics, Advance Pediatric Centre, Post-Graduate Institute of Medical Education and Research, Chandigarh, India

Pratibha Singhi, MD

Department of Pediatrics, Advance Pediatric Centre, Post-Graduate Institute of Medical Education and Research, Chandigarh, India

M. Jayashree, MD

Department of Pediatrics, Advance Pediatric Centre, Post-Graduate Institute of Medical Education and Research, Chandigarh, India

The objective of this study was to compare the efficacy of continuous midazolam and diazepam infusion for the control of refractory status epilepticus. An open-label, randomized control study was undertaken at the Pediatric Emergency and Intensive Care Service of a multidisciplinary teaching and referral hospital. Subjects included 40 children, 2 to 12 years of age, with refractory status epilepticus (motor seizures uncontrolled after two doses of diazepam, 0.3 mg/kg per dose, and phenytoin infusion, 20 mg/kg). Either continuous midazolam (n = 21) or diazepam infusion (n = 19) in incremental doses was administered. The primary outcome measure was the proportion of children in each group with successful control of refractory status epilepticus. The secondary outcome measure was the time to control seizure activity, recurrence of seizure after initial control, if any, the frequency of hypotension, and the need for ventilation. The two groups were similar in age (mean ± SD = 4.9 ± 43.6 months) and etiology. Twenty-three (57.5%) patients had acute central nervous system infection. Refractory status epilepticus was controlled in 18 (86%) and 17 (89%) patients in the midazolam and diazepam groups, respectively (P = not significant). The median time to seizure control was 16 minutes in both groups, but in the midazolam group, seizures recurred in more children (57% versus 16% in diazepam group; P < .05). The maximum dose (mean ± SD) of midazolam and diazepam required was 5.3 ± 2.6 µg/kg/min and 0.04 ± 0.02 mg/kg/min, respectively. About half of the patients needed mechanical ventilation and 40% had hypotension in both groups, but the mortality was higher in the midazolam group (38%) as compared to the diazepam group (10.5%, P < . 1 > .05). Continuous midazolam and diazepam infusions were equally effective for control of refractory status epilepticus. However, midazolam was associated with more seizure recurrence and higher mortality in refractory status epilepticus predominantly caused by central nervous system infections. (J Child Neurol 2002;17:106-110).

Journal of Child Neurology, Vol. 17, No. 2, 106-110 (2002)
DOI: 10.1177/088307380201700203


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