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Impact of Preemptive Analgesia on Postoperative Pain in Orthognathic Surgery

29 de abril de 2026 actualizado por: DENNYS RIVERA PEREZ, University of Puerto Rico

Impact of Preemptive Analgesia on Postoperative Pain in Patients Undergoing Orthognathic Surgery: A Randomized Controlled Trial.

This randomized controlled clinical trial evaluates the effect of preemptive analgesia on postoperative pain outcomes in adult patients undergoing orthognathic surgery. Participants scheduled for bilateral sagittal split osteotomy and Le Fort I osteotomy under general anesthesia will be randomized to one of three groups: intravenous acetaminophen, intravenous ibuprofen, or a control group receiving standard postoperative analgesia without preoperative medication.

The study aims to determine whether the administration of pre-surgical analgesics reduces postoperative pain intensity and analgesic requirements during the early postoperative period. Pain will be assessed using a standardized pain scale at multiple time points following surgery, and secondary outcomes will include postoperative analgesic consumption and patient satisfaction with pain control.

This investigation seeks to contribute evidence supporting multimodal analgesic strategies and improved postoperative pain management in patients undergoing orthognathic surgery.

Descripción general del estudio

Estado

Aún no reclutando

Intervención / Tratamiento

Descripción detallada

Effective management of postoperative pain remains an important component of perioperative care in patients undergoing orthognathic surgery. Procedures such as bilateral sagittal split osteotomy and Le Fort I osteotomy are associated with significant postoperative discomfort due to extensive manipulation of osseous and soft tissue structures. Preemptive analgesia, defined as the administration of analgesic medication prior to surgical injury, has been proposed as a strategy to attenuate central sensitization and reduce postoperative pain intensity.

This study is designed as a participant-blinded, randomized controlled clinical trial conducted in the operating room at the Administration of Medical Services in Puerto Rico (ASEM). Adult patients between 21 and 65 years of age with American Society of Anesthesiologists (ASA) physical status I or II who are scheduled to undergo orthognathic surgery will be invited to participate following informed consent. A total of 72 participants will be enrolled and randomly assigned in a 1:1:1 ratio to one of three groups: intravenous acetaminophen, intravenous ibuprofen, or a control group receiving no preoperative analgesic intervention.

Participants in the intervention groups will receive either acetaminophen 1 g intravenously or ibuprofen 600 mg intravenously approximately 30 minutes before surgical incision, with a second dose administered near the end of the procedure according to the medication half-life. The control group will receive no pre-surgical analgesic administration and will follow the institution's standard postoperative pain management protocol.

Postoperative pain intensity will be measured using a validated pain scale at predetermined intervals during the postoperative period. Additional outcomes include postoperative analgesic requirements and patient satisfaction with pain control. By comparing two commonly used intravenous analgesic medications with standard care, this study aims to evaluate the effectiveness of preemptive analgesic strategies in improving postoperative pain outcomes and reducing analgesic consumption following orthognathic surgery.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

72

Fase

  • Fase 4

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Dennys Rivera Pérez, MD
  • Número de teléfono: 1920-1921 7877582525
  • Correo electrónico: dennys.rivera@upr.edu

Copia de seguridad de contactos de estudio

  • Nombre: Alvara J Horta Caicedo, DMD
  • Número de teléfono: 1-678-394-7721
  • Correo electrónico: alvaro.horta@upr.edu

Ubicaciones de estudio

      • San Juan, Puerto Rico, 00936
        • Administración de Servicios Médicos (ASEM)
        • Contacto:
          • Dennys Rivera Pérez, MD
          • Número de teléfono: 1920-1921 7877582525
          • Correo electrónico: dennys.rivera@upr.edu
        • Contacto:
          • Alvara J Horta Caicedo, DMD
          • Número de teléfono: 1-678-394-7721
          • Correo electrónico: alvaro.horta@upr.edu

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

  • Adults aged 21 to 65 years.
  • American Society of Anesthesiologists (ASA) physical status I or II.
  • Scheduled to undergo orthognathic surgery including bilateral sagittal split osteotomy and Le Fort I osteotomy under general anesthesia.
  • Ability to understand the study procedures and provide written informed consent.

Exclusion Criteria:

  • Pregnancy or breastfeeding.
  • Known allergy or intolerance to acetaminophen, ibuprofen, or other nonsteroidal anti-inflammatory drugs (NSAIDs).
  • Renal dysfunction, defined as estimated glomerular filtration rate <60 mL/min/1.73 m².
  • Hepatic dysfunction, defined as liver enzyme levels greater than twice the upper limit of normal.
  • History of bleeding disorders or coagulopathy.
  • Active or recent peptic ulcer disease.
  • Current use of recreational drugs, including cannabis, that in the judgment of the investigators could interfere with anesthesia management, postoperative pain assessment, or study outcomes.
  • Any medical condition that, in the judgment of the investigators, would make participation unsafe or interfere with study participation.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Triple

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Intravenous Acetaminophen
Participants randomized to this arm will receive acetaminophen 1 g administered intravenously approximately 30 minutes prior to surgical incision during orthognathic surgery under general anesthesia. A second dose will be administered near the end of the surgical procedure according to the medication half-life. Postoperative pain outcomes will be compared with the other study groups.
Acetaminophen 1 g administered intravenously approximately 30 minutes prior to surgical incision during orthognathic surgery under general anesthesia. A second dose will be administered near the end of the surgical procedure according to the medication half-life.
Otros nombres:
  • Acetaminophen 1g Iv
  • Acetaminophen 1000mg IV
Experimental: Intravenous Ibuprofen
Participants randomized to this arm will receive ibuprofen 600 mg administered intravenously approximately 30 minutes prior to surgical incision during orthognathic surgery under general anesthesia. A second dose will be administered near the end of the procedure according to the medication half-life. Postoperative pain outcomes will be compared with the other study groups.
Ibuprofen 600 mg administered intravenously approximately 30 minutes prior to surgical incision during orthognathic surgery under general anesthesia. A second dose will be administered near the end of the surgical procedure according to the medication half-life.
Otros nombres:
  • Ibuprofen 600mg IV
Sin intervención: Standard Care Control
Participants randomized to this arm will not receive preoperative analgesic medication. Postoperative pain management will follow the institution's standard care protocol after completion of the surgical procedure. Outcomes will be compared with participants receiving preemptive intravenous analgesic interventions.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Postoperative Pain Intensity
Periodo de tiempo: 1 hour, 4 hours, and 24 hours after surgery
Postoperative pain intensity measured using a validated pain scale (Visual Analog Scale, 0-10) in patients undergoing orthognathic surgery. Pain scores will be recorded and compared between the acetaminophen, ibuprofen, and control groups.
1 hour, 4 hours, and 24 hours after surgery

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Postoperative Analgesic Consumption
Periodo de tiempo: Within 24 hours after surgery
Total amount of rescue analgesic medications administered during the postoperative period will be recorded and compared between study groups.
Within 24 hours after surgery
Patient Satisfaction with Pain Management
Periodo de tiempo: 24 hours after surgery
Patient satisfaction with postoperative pain control measured using the Spanish version of the Pain Treatment Satisfaction Scale (PTSS).
24 hours after surgery

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

1 de abril de 2026

Finalización primaria (Estimado)

1 de diciembre de 2026

Finalización del estudio (Estimado)

1 de febrero de 2027

Fechas de registro del estudio

Enviado por primera vez

29 de abril de 2026

Primero enviado que cumplió con los criterios de control de calidad

29 de abril de 2026

Publicado por primera vez (Actual)

6 de mayo de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

6 de mayo de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

29 de abril de 2026

Última verificación

1 de abril de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

Individual participant data will not be shared because the dataset contains potentially identifiable health information and the study protocol does not include provisions for external data sharing.

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

producto fabricado y exportado desde los EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

Ensayos clínicos sobre Dolor postoperatorio

Ensayos clínicos sobre Acetaminophen

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