Prospective observational study of drug utilization in neonatal seizure at a tertiary care hospital with Pharmacoeconomics

ABSTRACT

Background: Seizures are the most common indicator of significant neurologic dysfunction in neonatal period with incidence of 11.7/1000 live births. Phenobarbitone is used as first line of treatment since 1900s. Newer anti-epileptic drugs (AED) available are Levetiracetam, Topiramate etc. Present study focused on utilization pattern of AED, treatment outcomes and to study economic burden of disease.Methods: An observational study was done on 100 neonates admitted to Neonatal Intensive Care Unit in Basaveshwara hospital, Kalaburagi (June 2016-May 2017). Prescription data was entered into specially designed proforma, WHO core indicators were determined. The data was analyzed using descriptive statistics and presented as means and percentages.Results: Majority of neonates were male (58%) and 63% were diagnosed with subtle seizure. Out of 458 drugs prescribed, 201 were antiepileptics. 41% cases were successfully managed by monotherapy. Most commonly used drug was phenobarbitone (82%) and phenytoin (31%). Leviteracetam, newer AED was used in 3 refractory cases. The major combination of drugs used was Phenobarbitone-Phenytoin (24%). AED were rationally prescribed, but antibiotic was over-utilized(68%). 31% cases had adverse drug reaction. On average per prescription, number of drugs used were 4.6 and drug cost was Rs.3803/-. The total cost of illness per patient was Rs.16363/-.Conclusions: AED utilization in neonatal seizures was in accordance to guidelines, with phenobarbitone being extensively used despite its potential neurotoxicity. The utilization of newer AED would increase if clinicians are supported with the safety and efficacy data. Although monotherapy was preferred with respect to AED, antibiotics were highly prescribed; hence awareness is needed to curb this practice.