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- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07665645
Postoperative Cognitive Function After Different Anesthetic Techniques in Obese Patients
Effects of Low-Flow Sevoflurane, Normal-Flow Sevoflurane, and Total Intravenous Anesthesia on Postoperative Cognitive Function in Obese Patients Undergoing Laparoscopic Abdominal Surgery
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Obesity is associated with physiological alterations that may increase the risk of postoperative cognitive dysfunction (POCD). The influence of anesthetic techniques on postoperative cognitive outcomes in obese patients remains uncertain.
This prospective randomized study was conducted in obese patients (BMI ≥30 kg/m²) aged 18-65 years undergoing elective laparoscopic abdominal surgery under general anesthesia. Patients were randomly assigned to one of three groups: low-flow sevoflurane anesthesia, normal-flow sevoflurane anesthesia, or total intravenous anesthesia (TIVA). Anesthetic depth was monitored using bispectral index (BIS) monitoring and maintained between 40 and 60 in all groups.
The primary objective was to compare postoperative cognitive function among the three anesthetic techniques using the Mini-Mental State Examination (MMSE). MMSE scores were evaluated preoperatively, at postoperative 30 minutes, and on postoperative day 3.
Secondary objectives included comparison of recovery characteristics, including eye-opening time, extubation time, Modified Aldrete Recovery Scores, and perioperative hemodynamic parameters.
The study was approved by the Marmara University Faculty of Medicine Clinical Research Ethics Committee (Approval No. 09.2022.744) and written informed consent was obtained from all participants before enrollment.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Istanbul
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Istanbul, Istanbul, Turquía (Türkiye), 34899
- Marmara University Faculty of Medicine Pendik Training and Research Hospital
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-
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Age between 18 and 65 years
- Body mass index (BMI) ≥30 kg/m²
- ASA physical status I-III
- Scheduled for elective laparoscopic abdominal surgery
- Provision of written informed consent
Exclusion Criteria:
- History of psychiatric disease
- Dementia or known cognitive impairment
- Hearing or language disorders preventing MMSE assessment
- Refusal to participate
- Conversion from laparoscopic to open surgery
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: Low-Flow Sevoflurane
Patients received sevoflurane anesthesia with a fresh gas flow of 1 L/min during maintenance of anesthesia.
Anesthetic depth was maintained with BIS values between 40 and 60.
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Maintenance of general anesthesia with sevoflurane inhalation.
Patients were assigned to either low-flow (1 L/min) or normal-flow (3 L/min) fresh gas flow anesthesia protocols.
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|
Experimental: Normal-Flow Sevoflurane
Patients received sevoflurane anesthesia with a fresh gas flow of 3 L/min during maintenance of anesthesia.
Anesthetic depth was maintained with BIS values between 40 and 60.
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Maintenance of general anesthesia with sevoflurane inhalation.
Patients were assigned to either low-flow (1 L/min) or normal-flow (3 L/min) fresh gas flow anesthesia protocols.
|
|
Experimental: Total Intravenous Anesthesia (TIVA)
Patients received total intravenous anesthesia with propofol and remifentanil infusion.
Anesthetic depth was maintained with BIS values between 40 and 60.
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Maintenance of total intravenous anesthesia using continuous propofol infusion under BIS monitoring.
Continuous remifentanil infusion was administered during maintenance of anesthesia according to study protocol.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Mini-Mental State Examination (MMSE) Score
Periodo de tiempo: Preoperative, postoperative 30 minutes, and postoperative day 3
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Postoperative cognitive function assessed using the Mini-Mental State Examination (MMSE).
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Preoperative, postoperative 30 minutes, and postoperative day 3
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Eye Opening Time
Periodo de tiempo: End of surgery
|
Time from discontinuation of anesthetic administration to spontaneous eye opening
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End of surgery
|
|
Extubation Time
Periodo de tiempo: End of surgery
|
Time from discontinuation of anesthetic administration to tracheal extubation.
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End of surgery
|
|
Modified Aldrete Recovery Score
Periodo de tiempo: Postoperative recovery period
|
Recovery status assessed using the Modified Aldrete Score.
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Postoperative recovery period
|
|
heart rate
Periodo de tiempo: During surgery
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patient's intraoperative measured heart rate
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During surgery
|
|
mean arterial pressure
Periodo de tiempo: during surgery
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patient's intraoperative measured mean arterial pressure
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during surgery
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oxygen saturation
Periodo de tiempo: During surgery
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oxygen saturation of the patient will be recorded
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During surgery
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end-tidal carbon dioxide
Periodo de tiempo: During surgery
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end-tidal carbon dioxide of the patient will be recorded
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During surgery
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Ahmet Tunca, MD, Department of Anesthesiology and Reanimation, Gaziantep City Hospital
- Silla de estudio: Seniyye Ü Zengin, MD, Department of Anesthesiology and Reanimation, Marmara University Faculty of Medicine, Pendik Training and Research Hospital
- Director de estudio: Meliha O Ergün, MD, Department of Anesthesiology and Reanimation, Marmara University Faculty of Medicine, Pendik Training and Research Hospital
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Trastornos Nutricionales
- Sobrenutrición
- Peso corporal
- Exceso de peso
- Condiciones Patológicas, Signos y Síntomas
- Enfermedades Nutricionales y Metabólicas
- Signos y síntomas
- Obesidad
- Químicos orgánicos
- Compuestos heterocíclicos, 1 anillo
- Compuestos heterocíclicos
- Éter
- Hidrocarburos
- Hidrocarburos, cíclico
- Ácidos, acíclico
- Ácidos carboxílicos
- Hidrocarburos, aromáticos
- Piperidinas
- Fenoles
- Derivados de benceno
- Hidrocarburos, halogenados
- Hidrocarburos, fluorado
- Propionios
- Éter de metilo
- Remifentanilo
- Sevoflurano
- Propofol
Otros números de identificación del estudio
- MU-09.2022.744
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Información sobre medicamentos y dispositivos, documentos del estudio
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