THE COMPARATIVE STUDY ON THE EFFICACY OF CHLORAL HYDRATE AND HYDROXYZINE OF DIFFERENT DOSES IN SEDATING YOUNG PEDIATRIC DENTAL PATIENTS

Chloral hydrate와 병용투여 시 Hydroxyzine용량에 따른 진정효과의 비교연구

Orally administered chloral hydrate is often used, because of it's wide margin of safety and relatively few sideeffects. Hydroxyzine is an antihistamine with sedative and anti-emetic properties. It has been used in conjunction with chloral hydrate to reduce the incidence of nausea and vomiting. But, it's therapeutic drug concentration has not been established. The purpose of this study was to assess the sedative effect and physiologic parameter of hydroxyzine of different doses in sedating young pediatric dental patients. Fifty uncooperative children, mean age 33.2 months, who needed at least four separate restorative visits, requiring local anesthesia participated in this study. On every visit, one of the following 4 different sedative regimen was given (1) 70mg/kg CH (2) 70mg/kg CH and 1mg/kg HD (3) 70mg/kg CH and 2mg/kg HD (4) 70mg/kg CH and 3mg/kg HD. Physiologic parameter was recorded and behavior was videotaped and rated using Ohio State University Behavior Rating Scale by one investigator, blind to the dose. The analyzed sedative effect of combined oral administration of 70mg/kg chloral hydrate and 2mg/kg hydroxyzine was superior to the other regimens. Evidence of adverse effect was not detected or reported during and/or after the procedures.

본 연구에 사용된 Chloral hydrate는 바람직한 치과치료가 불가능한 소아환자의 진정 시 가장 흔히 사용되는 약물이다. 그러나 Chloral hydrate 단독투여 시 진정효과가 불안정하고 오심과 구토 등의 부작용이 나타나는 경우가 있다. 이 경우 약물의 추가투여는 과용량의 위험을 초래할 수 있기에 단독투여시의 부작용을 보완하고 상승효과를 기대하는 목적으로 Hydroxyzine과의 병용투여가 추천된다. 그러므로 각기 다른 용량의 Hydroxyzine을 병용 투여하여 각각의 진정효과를 평가하고자 하였다. 본 실험에서 Chloral hydrate와 Hydroxyzine의 병용 투여가 Chloral hydrate 단독투여 시보다 양호한 결과를 나타냈고, 이중 2mg/kg의 Hydroxyzine용량(III군)이 소아 환자를 위한 진정요법의 바람직한 용량으로 평가되었다.