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- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT07720778
ORI-Guided Oxygen Therapy During One-Lung Ventilation (ORI-OLV)
Effect of Oxygen Reserve Index-Guided Fraction of Inspired Oxygen Titration on the Incidence of Hyperoxemia During One-Lung Ventilation
High inspired oxygen concentrations (FiO₂) are commonly administered during general anesthesia to prevent hypoxemia. However, excessive oxygen administration may result in hyperoxemia, which has been associated with impaired hypoxic pulmonary vasoconstriction, increased oxidative stress, ventilation-perfusion mismatch, and postoperative pulmonary complications.
During one-lung ventilation (OLV) for thoracic surgery, higher FiO₂ is often required because of increased intrapulmonary shunting, making hyperoxemia a frequent occurrence. The Oxygen Reserve Index (ORI) is a noninvasive pulse oximetry-derived parameter that reflects moderate hyperoxemia (PaO₂ approximately 100-200 mmHg) and may facilitate more precise oxygen titration than pulse oximetry alone.
Visão geral do estudo
Status
Intervenção / Tratamento
Descrição detalhada
Tipo de estudo
Inscrição (Estimado)
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
- Nome: Tae-Yop Kim
- Número de telefone: 82-10-8811-6942
- E-mail: taeyop@gmail.com
Estude backup de contato
- Nome: Chungsik Oh
- E-mail: iamchungsik@daum.net
Locais de estudo
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Gwangjin-gu
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Seoul, Gwangjin-gu, Coréia do Sul, 05030
- Konkuk University Medical Center
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Adults aged ≥19 years
- Scheduled for elective lung surgery requiring one-lung ventilation
- Written informed consent
Exclusion Criteria:
- Severe pulmonary hypertension.
- Left ventricular systolic dysfunction.
Withdrawal Criteria:
- The participant or legally authorized representative requests withdrawal from the study.
- An adverse event occurs that precludes continued participation in the study.
- The planned surgery or study procedures are not performed (e.g., ORI monitoring is not applied or arterial blood gas analysis is not performed).
- Perfusion Index is less than 2 during the study.
- A major violation of the inclusion or exclusion criteria is identified after enrollment.
- The participant fails to comply with the study protocol, potentially affecting the validity of the study outcomes.
- Continued participation is considered not to be in the participant's best interest.
- In the investigator's judgment, any other condition arises that makes continued participation inappropriate.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Quadruplicar
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Comparador Ativo: ORI-Guided FiO2 Titration
Fraction of inspired oxygen (FiO₂) is titrated using both the Oxygen Reserve Index (ORI) and peripheral oxygen saturation (SpO₂) during one-lung ventilation.
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During one-lung ventilation, FiO₂ is adjusted according to both ORI and SpO₂.
FiO₂ is titrated to maintain SpO₂ ≥98% while keeping ORI above 0 to minimize hyperoxemia.
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Comparador Ativo: Conventional SpO₂-Guided FiO₂ Titration
Fraction of inspired oxygen (FiO₂) is titrated using peripheral oxygen saturation (SpO₂) alone according to the institutional standard of care during one-lung ventilation.
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During one-lung ventilation, FiO₂ is adjusted according to SpO₂ alone.
FiO₂ is titrated to maintain SpO₂ ≥98% according to the institutional standard of care.
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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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Incidence of hyperoxemia during one-lung ventilation
Prazo: 10 min after initiation of one-lung ventilation during operation
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Hyperoxemia is defined as an arterial partial pressure of oxygen (PaO₂) greater than 125 mmHg measured after initiation of one-lung ventilation.
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10 min after initiation of one-lung ventilation during operation
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Peripheral oxygen saturation (SpO₂)
Prazo: 10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Peripheral oxygen saturation
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10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Oxygen Reserve Index (ORI)
Prazo: 10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Oxygen Reserve Index measured during anesthesia.
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10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Arterial oxygen tension (PaO₂)
Prazo: 10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Arterial partial pressure of oxygen measured by arterial blood gas analysis.
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10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Fraction of inspired oxygen (FiO₂)
Prazo: 10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Fraction of inspired oxygen administered during anesthesia.
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10 mins after two-lung ventilation, 10 mins after initiation of one-lung ventilation, and 10 mins after resumption of two-lung ventilation, all time frames are included in anesthesia time
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Colaboradores e Investigadores
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
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
Outros números de identificação do estudo
- KUMC 2026-05-061
Plano para dados de participantes individuais (IPD)
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Ensaios clínicos em ORI-Guided FiO2 Titration
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Eunah Cho, MDConcluído
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Tepecik Training and Research HospitalConcluídoA eficácia da titulação de FiO2 guiada pelo índice de reserva de oxigênio na prevenção da hiperóxia.Complicação | HiperóxiaPeru
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Tepecik Training and Research HospitalConcluídoComplicação | Complicação da Ventilação Mecânica | HiperóxiaPeru