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      A randomized double-blinded trial of chloral hydrate with or without hydroxyzine versus placebo for pediatric dental sedation

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          Abstract

          Chloral hydrate and hydroxyzine are a drug combination frequently used by practitioners to sedate pediatric dental patients, but their effectiveness has not been compared to a negative control group in humans. The aim of this crossover, double-blinded study was to evaluate the effect of these drugs compared to a placebo, administered to young children for dental treatment. Thirty-five dental sedation sessions were carried out on 12 uncooperative ASA I children aged less than 5 years old. In each session patients were randomly assigned to groups P (placebo), CH (chloral hydrate 75 mg/kg) and CHH (chloral hydrate 50 mg/kg plus hydroxyzine 2.0 mg/kg). Vital signs and behavioral variables were evaluated every 15 min. Comparisons were statistically analyzed using Friedman and Wilcoxon tests. P, CH and CHH had no differences concerning vital signs, except for breathing rate. All vital signs were in the normal range. CH and CHH promoted more sleep in the first 30 min of treatment. Overall behavior was better in CH and CHH than in P. CH, CHH and P were effective in 62.5%, 61.5% and 11.1% of the cases, respectively. Chloral hydrate was safe and relatively effective, causing more satisfactory behavioral and physiological outcomes than a placebo.

          Translated abstract

          A associação hidrato de cloral- hidroxizina tem sido utilizada na clínica odontológica para sedar crianças, mas sua efetividade ainda não foi comparada a um controle negativo em humanos. O objetivo deste estudo prospectivo foi avaliar o efeito dessas drogas, comparadas a um placebo, em crianças submetidas a tratamento odontológico. Trinta e cinco sessões de sedação foram realizadas em 12 crianças menores de 5 anos, não cooperativas, ASA classe I. Em cada sessão os pacientes foram aleatoriamente alocados para os grupos P (placebo), CH (hidrato de cloral 75 mg/kg) e CHH (hidrato de cloral 50 mg/kg mais hidroxizina 2,0 mg/kg). Sinais vitais e comportamento foram avaliados a cada 15 min, e comparados pelos testes de Friedman e Wilcoxon. Os grupos não apresentaram diferenças quanto às variáveis fisiológicas, exceto a freqüência respiratória. Todos sinais vitais registrados estiveram dentro de faixa aceitável. CH e CHH promoveram mais sono nos primeiros 30 min de tratamento. O comportamento geral foi melhor em CH e CHH do que em P. CH, CHH e P foram efetivos em 62,5%, 61,5% e 11,1% dos casos, respectivamente. O hidrato de cloral foi seguro e relativamente efetivo, levando a resultados fisiológicos e comportamentais melhores que o placebo.

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          A retrospective study of chloral hydrate, meperidine, hydroxyzine, and midazolam regimens used to sedate children for dental care.

          The purpose of this retrospective study was twofold: a) to examine the behavior and physiology of pre-school children each sedated with 1 of 3 drug regimens based on patient age, dental needs, and pre-operative clinical impression; and b) to determine the association between pre-operative behaviors to the behavior and physiology of the sedated children.
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            A randomized, controlled, crossover trial of oral midazolam and hydroxyzine for pediatric dental sedation

            The effectiveness of oral midazolam in pediatric dentistry is controversial. This randomized, controlled, crossover, double blind clinical trial was conducted in order to study the effect of midazolam, used either alone or in association with hydroxyzine, during child dental treatment. Thirty seven dental sedation sessions were carried out on 11 ASA I uncooperative children less than five years-old. In each appointment children were randomly assigned to groups: P - placebo, M - midazolam (1.0 mg/kg), or MH - midazolam (0.75 mg/kg) plus hydroxyzine (2.0 mg/kg). Vital signs (blood pressure, breathing rate, pulse and oxygen saturation) and behavior parameters (consciousness, crying, movement, overall behavior) were evaluated every 15 minutes. Friedman and Wilcoxon statistical tests were used to compare groups and different moments in the same group. Normal values of vital signs were usually registered. Heart rate increased in groups P and M as the session went on. Group M presented less crying and movement at the first 15 minutes of treatment. Group MH caused more drowsiness at the beginning of the session. Overall behavior was better in group M than in groups P or MH. Group M produced effective sedation in 77% of the cases, and group MH did so in 30.8%. It was concluded that midazolam was effective and safe, and its association with hydroxyzine did not lead to additional advantages in pediatric dental sedation.
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              Conscious sedation of pediatric dental patients using chloral hydrate, hydroxyzine, and nitrous oxide--a retrospective study of 382 sedations.

              This retrospective study assessed the effectiveness and safety of chloral hydrate (55 mg/kg), hydroxyzine (1 mg/kg), and nitrous oxide in the sedation of 336 uncooperative pediatric dental patients over 382 sedation sessions, and identified variables associated with effectiveness including: sex, weight, age, and preoperative behavior of the patient; route and combinations of the sedative drugs; and sex of the operating and monitoring dentists. The operating and monitoring dentists rated the sedation session as either effective or ineffective and also as either heavy, moderate, light or poor. The mean age of the children was 2.6 years and mean weight was 14.1 kg. Seventy-four percent of the sedation sessions were deemed effective. Boys had more effective sessions (80.6%) than girls (65.1%) (P = 0.001). Also, the percentage of sedations rated as effective increased as the preoperative behavior was more positively rated (P = 0.001). Oral regimen of chloral hydrate alone or in combination with oral hydroxyzine was more effective (75.5%) than rectal administration of chloral hydrate alone (65.7%) (P = 0.09). There was no significant difference in effectiveness when chloral hydrate was administered orally alone or in combination with oral hydroxyzine. Sedation sessions rated effective had longer operative times, included more sextants of treatment, were more likely to include restorative treatment, and were less likely to include extractions than the ineffective sedations. Vomiting was the only complication reported, occurring in 8.1% of the sedations. Vomiting did not vary significantly with either route of administration or inclusion of hydroxyzine in the oral regimen. Pulse rates were significantly higher for children in the ineffective sedation sessions. This sedative drug regimen was deemed safe and effective for treating young and uncooperative pediatric dental patients.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                bdj
                Brazilian Dental Journal
                Braz. Dent. J.
                Fundação Odontológica de Ribeirão Preto (Ribeirão Preto )
                1806-4760
                2007
                : 18
                : 4
                : 334-340
                Affiliations
                [1 ] Universidade Federal de Goiás Brazil
                [2 ] Universidade Federal de Goiás Brazil
                [3 ] Health Department Brazil
                Article
                S0103-64402007000400012
                10.1590/S0103-64402007000400012
                ef75dd03-5354-4733-9d3d-2f716a63fc47

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-6440&lng=en
                Categories
                DENTISTRY, ORAL SURGERY & MEDICINE

                Dentistry
                conscious sedation,pediatric dentistry,chloral hydrate,hydroxyzine
                Dentistry
                conscious sedation, pediatric dentistry, chloral hydrate, hydroxyzine

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