Rev. Soc. Esp. Dolor. 2022; 29(1): 8-14 / DOI: 10.20986/resed.2022.3991/2022
María Pilar Millán, Angela María Soriano, Francisco Javier Alados
ABSTRACT
Introduction: Opioid free anaesthesia is a new paradigm that focuses in multimodal analgesia with an opioid sparing approach that provides a good pain management, without nauseas nor vomiting and improves prognosis in oncological patients.
Patients and method: Cases retrospective study of major surgery patients from november 2018 to february 2020. Main objective: type and dosage of opioid requeriments both in the intraoperatory and postoperative setting. Secondary objectives: pain level score cuantification at the end of the surgery and at leaving the postoperative recovery unit and incidence of nausea/vomiting.
Results: 157 patients were recruited. 29,9 % need no opioid intraoperatively. Those who requiered it, 72,7 % only needed morphine (3,3 mg ± 0,9), 8,1 % had to recieved fentanyl (110,1 mcg, ± 57,1) and 19,2 % need both morphine and fentanyl (3,8 mg ± 1,2 and 90,4 mcg ± 62,4). At the postoperative recovery unit, only 31,7 % precised opioids: ⅔ (33 patients) recieved morphine (4,8 mg ± 2,6), 1/5 (10 patients) only fentanyl (83,3 mcg ± 28,8) and the rest needed a combination of fentanyl and morphine (140,6 mcg ± 119,4 and 8 mg ± 5,9, respectively). Two of them have nausea or vomyting.
Conclusions: An opioid free anaesthesia approach is feasible in major surgery patients and it achieves and adequate pain management. Opioid requeriments in such patients is less than in those who recieved a traditional base opioid analgesia protocol.
RESUMEN
Introducción: La técnica OFA (opioid free anaesthesia) se basa en una anestesia multimodal con menor uso de opioides, que consigue un adecuado control del dolor, con menor incidencias de náuseas y vómitos en el postoperatorio y mejora el pronóstico en los pacientes oncológicos.
Pacientes y método: Estudio retrospectivo de casos de pacientes sometidos a cirugía mayor en el periodo de noviembre de 2018 a febrero de 2020. Objetivo principal: cuantificar tipo y dosis de opioide administrado en periodo intraoperatorio y en el postoperatorio inmediato. Objetivos secundarios: graduación del dolor en el postoperatorio y al alta a planta de hospitalización y presencia de náuseas/vómitos en el postoperatorio Resultados: 157 pacientes fueron incluidos. El 29,9 % de los pacientes no precisaron ninguna dosis de opioide intraoperatorio. De los que sí la precisaron, un 72,7 % de los mismos solo necesitó morfina y a una dosis media de 3,3 mg (± 0,9); un 8,1 % solo recibieron fentanilo (dosis media de 110,1 mcg, ± 57,1), y un 19,2 % recibieron morfina y fentanilo (3,8 mg ± 1,2 y 90,4 mcg ± 62,4, respectivamente). En cuanto a la necesidad de opioide postoperatorio, solo el 31,7 % de los pacientes precisó su administración; de ellos ⅔ (33 pacientes) solo recibieron morfina (4,8 mg ± 2,6), 1/5 (10 pacientes) solo fentanilo (83,3 mcg ± 28,8) y el resto una combinación de fentanilo y morfina (140,6 mcg ± 119,4 y 8 mg ± 5,9, respectivamente). Respecto a la intensidad de dolor, el valor en la escala EVA a la llegada de los pacientes a la Reanimación tuvo un valor de 1,6 ± 1,9 y al alta de 0,3 ± 0,6. Solo dos pacientes tuvieron náuseas o vómitos.
Conclusiones: El uso de una técnica OFA es factible en cirugía mayor y permite un adecuado control del dolor. La necesidad de opioides intravenosos, tanto en el intraoperatorio como en el postoperatorio, es menor cuando se realiza una técnica OFA.
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