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- Ensaio 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
Visão geral do estudo
Status
Intervenção / Tratamento
Descrição detalhada
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 estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Istanbul
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Istanbul, Istanbul, Turquia (Türkiye), 34899
- Marmara University Faculty of Medicine Pendik Training and Research Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Dobro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
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.
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|
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.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Mini-Mental State Examination (MMSE) Score
Prazo: 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 resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Eye Opening Time
Prazo: End of surgery
|
Time from discontinuation of anesthetic administration to spontaneous eye opening
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End of surgery
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Extubation Time
Prazo: End of surgery
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Time from discontinuation of anesthetic administration to tracheal extubation.
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End of surgery
|
|
Modified Aldrete Recovery Score
Prazo: Postoperative recovery period
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Recovery status assessed using the Modified Aldrete Score.
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Postoperative recovery period
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|
heart rate
Prazo: During surgery
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patient's intraoperative measured heart rate
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During surgery
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mean arterial pressure
Prazo: 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
Prazo: During surgery
|
oxygen saturation of the patient will be recorded
|
During surgery
|
|
end-tidal carbon dioxide
Prazo: 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
- Cadeira de estudo: Seniyye Ü Zengin, MD, Department of Anesthesiology and Reanimation, Marmara University Faculty of Medicine, Pendik Training and Research Hospital
- Diretor de estudo: Meliha O Ergün, MD, Department of Anesthesiology and Reanimation, Marmara University Faculty of Medicine, Pendik Training and Research Hospital
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Distúrbios Nutricionais
- Supernutrição
- Peso corporal
- Excesso de peso
- Condições Patológicas, Sinais e Sintomas
- Doenças Nutricionais e Metabólicas
- Sinais e sintomas
- Obesidade
- Produtos químicos orgânicos
- Compostos heterocíclicos, 1 anel
- Compostos heterocíclicos
- Éteres
- Hidrocarbonetos
- Hidrocarbonetos, cíclicos
- Ácidos, acíclico
- Ácidos carboxílicos
- Hidrocarbonetos, aromáticos
- Piperidinas
- Fenóis
- Derivados de benzeno
- Hidrocarbonetos, halogenados
- Hidrocarbonetos, fluorados
- Propionatos
- Éteres de metila
- Remifentanil
- Sevoflurano
- Propofol
Outros números de identificação do estudo
- MU-09.2022.744
Plano para dados de participantes individuais (IPD)
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Descrição do plano IPD
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