Use of a single dose of 70mg/kg chloral hydrate as a hypnotic in nuclear magnetic resonance. A prospective study of 3132 cases.

OBJECTIVE: To assess the mean time to hypnosis, hemodynamic stability, and incidence of complications associated with the administration of 70mg/kg oral chloral hydrate in children scheduled for magnetic resonance imaging (MRI). MATERIAL AND METHODS: Prospective study conducted from January 2000 to January 2020 in which 3132 patients aged between one day and 5 years underwent MRI under anaesthesia in an outpatient setting. The study population was divided into 4 subgroups: A) aged between one and 30 days; B) aged between one month and one year; C) aged between one and 3 years, and D) aged between 3 and 5 years. Study variables were: sex, age, type of examination, mean imaging time, mean time to awakening, heart rate before and after MRI, SatO2, and incidence of complications such as respiratory depression (SatO2 below 90%), agitation during the MRI or on awakening (intense crying lasting more than 2min), prolonged sedation measured on the Steward scale, and nausea and/or vomiting during the MRI, on awakening, or at home. RESULTS: No notable hemodynamic alterations were observed. The incidence of desaturation was .41%, awakening during the test was .16%, prolonged sedation was 1.08%, and agitated awakening was 1.46%. Nausea and vomiting at the end of the test had an incidence of .73%. The P value in all cases was <.05%. CONCLUSIONS: Chloral hydrate at a dose of 70mg/kg continues to be suitable in sedation lasting no more than one hour for non-invasive procedures in children, and is associated with adequate haemodynamic stability with practically no side effects.

Uso de hidrato de cloral a dosis única de 70mg/kg como hipnótico en resonancia magnética nuclear. Estudio prospectivo de 3.132 casos / Use of a single dose of 70mg/kg chloral hydrate as a hypnotic in nuclear magnetic resonance. A prospective study of 3, 132 cases

Objetivo: Valorar los tiempos medios de hipnosis, la estabilidad hemodinámica y la incidencia de complicaciones del uso de hidrato de cloral por vía oral en niños programados para exploraciones de resonancia magnética nuclear (RMN), a dosis de 70mg/kg. Material y métodos: Estudio prospectivo desde enero de 2000 a enero de 2020, en el que se realizaron 3.132 RMN a pacientes con edades comprendidas entre un día y 5 años, en régimen de anestesia ambulatoria. Se dividió a la población a estudio en 4 subgrupos: A) entre uno y 30 días; B) entre un mes y un año; C) entre uno y 3 años, y D) entre 3 y 5 años. Se registraron el sexo, la edad, el tipo de exploración, así como los tiempos medios de exploración y despertar, la frecuencia cardiaca previa a la RMN y al finalizar, la SatO2 y la incidencia de complicaciones del tipo de: depresión respiratoria (SatO2 inferior al 90%), agitación durante la RMN o al despertar (llanto intenso de más de 2min de duración), sedación prolongada valorada mediante el test de Steward y la aparición de náuseas y/o vómitos durante la RMN, al despertar o en su domicilio. Resultados: No se registraron alteraciones hemodinámicas reseñables. La incidencia de desaturaciones fue de un 0,41%. El despertar durante la prueba fue de un 0,16%, la sedación prolongada de un 1,08% y el despertar agitado apareció en un 1,46% de los casos. Las náuseas y vómitos al terminar la prueba tuvieron una incidencia de un 0,73%. Todos ellos con una p<0,05%. Conclusiones: El hidrato de cloral sigue siendo un fármaco que puede ser referente a dosis de 70mg/kg en sedaciones no superiores a una hora, en procedimientos no invasivos en niños y que asocia una estabilidad hemodinámica adecuada sin prácticamente efectos secundarios.(AU)

Objective: To assess the mean time to hypnosis, hemodynamic stability, and incidence of complications associated with the administration of 70mg/kg oral chloral hydrate in children scheduled for magnetic resonance imaging (MRI). Material and methods: Prospective study conducted from January 2000 to January 2020 in which 3,132 patients aged between one day and 5 years underwent MRI under anaesthesia in an outpatient setting. The study population was divided into 4 subgroups: A) aged between one and 30 days; B) aged between one month and one year; C) aged between one and 3 years, and D) aged between 3 and 5 years. Study variables were: sex, age, type of examination, mean imaging time, mean time to awakening, heart rate before and after MRI, SatO2, and incidence of complications such as respiratory depression (SatO2 below 90%), agitation during the MRI or on awakening (intense crying lasting more than 2min), prolonged sedation measured on the Steward scale, and nausea and/or vomiting during the MRI, on awakening, or at home. Results: No notable hemodynamic alterations were observed. The incidence of desaturation was 0.41%, awakening during the test was 0.16%, prolonged sedation was 1.08%, and agitated awakening was 1.46%. Nausea and vomiting at the end of the test had an incidence of 0.73%. The P value in all cases was<.05%. Conclusions: Chloral hydrate at a dose of 70mg/kg continues to be suitable in sedation lasting no more than one hour for non-invasive procedures in children, and is associated with adequate haemodynamic stability with practically no side effects.(AU)

Use of a single dose of 70mg/kg chloral hydrate as a hypnotic in nuclear magnetic resonance. A prospective study of 3,132 cases. / Uso de hidrato de cloral a dosis única de 70mg/kg como hipnótico en resonancia magnética nuclear. Estudio prospectivo de 3.132 casos.

OBJECTIVE: To assess the mean time to hypnosis, hemodynamic stability, and incidence of complications associated with the administration of 70mg/kg oral chloral hydrate in children scheduled for magnetic resonance imaging (MRI). MATERIAL AND METHODS: Prospective study conducted from January 2000 to January 2020 in which 3,132 patients aged between one day and 5 years underwent MRI under anaesthesia in an outpatient setting. The study population was divided into 4 subgroups: A) aged between one and 30 days; B) aged between one month and one year; C) aged between one and 3 years, and D) aged between 3 and 5 years. Study variables were: sex, age, type of examination, mean imaging time, mean time to awakening, heart rate before and after MRI, SatO2, and incidence of complications such as respiratory depression (SatO2 below 90%), agitation during the MRI or on awakening (intense crying lasting more than 2min), prolonged sedation measured on the Steward scale, and nausea and/or vomiting during the MRI, on awakening, or at home. RESULTS: No notable hemodynamic alterations were observed. The incidence of desaturation was 0.41%, awakening during the test was 0.16%, prolonged sedation was 1.08%, and agitated awakening was 1.46%. Nausea and vomiting at the end of the test had an incidence of 0.73%. The P value in all cases was<.05%. CONCLUSIONS: Chloral hydrate at a dose of 70mg/kg continues to be suitable in sedation lasting no more than one hour for non-invasive procedures in children, and is associated with adequate haemodynamic stability with practically no side effects.