The 50:50 Nitrous Oxide vs 2% Lidocaine Challenge
The 50:50 Nitrous Oxide Challenge: A Prospective Randomised Trial - Needle, Meet Your Match
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Tipo de estudio
Tipo de estudio
Inscripción (Estimado)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
Estudio Contacto
- Nombre: Ana Cvetkovic, MD,PhD
- Número de teléfono: +381 11 2067 100
- Correo electrónico: ana.cvetkovic@ncrc.ac.rs
Ubicaciones de estudio
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Savski Venac
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Belgrade, Savski Venac, Serbia, 11000
- Institute for Oncology and Radiology of Serbia
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Subjects who have not previously received Nitrous Oxide.
- Subjects of both sexes, aged between 18 and 65 inclusive.
- Subjects who have signed informed consent with full disclosure; no study-related procedure may begin until the subject signs the consent form.
Exclusion Criteria:
- Infection at the planned puncture site.
- Pregnancy.
- Intracranial hypertension.
- Vitamin B12 deficiency.
- Hemodynamic instability.
- BMI over 35.
- Glasgow Coma Scale (GCS) score less than 15.
- Presence of chronic pain.
- Neurological disorders.
- Hematologic disorders.
- Systemic or intrathecal methotrexate therapy
- More than two attempts at venous puncture (Subject Withdrawal Criterion).
- Subject experienced an adverse event requiring early discontinuation (Subject Withdrawal Criterion).
- Withdrawal of consent by the subject (Subject Withdrawal Criterion)
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
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Experimental: Nitrous Oxide Group
This will be the experimental group in which the patients will receive a mixture of gases to assess the efficacy of the treatment compared to the control.
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After placing the patient in the appropriate supination + Trendelenburg position, the operative field (neck and subclavian region) is prepared using antiseptic measures.Five minutes before needle insertion, a mask connected to a 50:50 Nitrous Oxide/Oxygen cylinder with a flow rate of 6 liters per minute is placed on the patient's face and held by the patient.
The mask has a valve that opens only when the patient creates negative pressure during inhalation.The patient is instructed to breathe spontaneously; the mask is removed once the catheter is inserted into the target vein or after cessation of painful stimulation.
Otros nombres:
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Comparador activo: Lidocaine 2%
The control group receiving the standard of care for this intervention.
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After placing the patient in the appropriate supination + Trendelenburg position, the operative field (neck and subclavian region) is prepared using antiseptic measures.
Then, under ultrasound control, the most favorable central vein for puncture is determined (v.
jugularis interna or v. subclavia) and a 25-gauge needle is used to infiltrate the skin and subcutaneous tissue above the selected vein with local anesthetic.
Five minutes after infiltration, puncture of the selected vein is performed using the Seldinger technique.
Continuous communication with the patient is maintained throughout the procedure.
Otros nombres:
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¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Pain Intensity During Needle Insertion
Periodo de tiempo: At the time of needle insertion
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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At the time of needle insertion
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Pain Intensity During Catheter Placement
Periodo de tiempo: During catheter placement
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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During catheter placement
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Pain Intensity Post-Intervention
Periodo de tiempo: 2 minutes after gas inhalation (Treatment 1) or 2 minutes post-intervention (Treatment 2)
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no pain) to 10 (worst imaginable pain).
Higher scores indicate greater pain intensity.
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2 minutes after gas inhalation (Treatment 1) or 2 minutes post-intervention (Treatment 2)
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Patient Anxiety Score
Periodo de tiempo: Post-intervention (at the conclusion of the central venous catheterization procedure)
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Assessed using a standard Numeric Rating Scale (NRS) ranging from 0 (no anxiety) to 10 (worst imaginable anxiety).
Higher scores indicate greater anxiety levels.
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Post-intervention (at the conclusion of the central venous catheterization procedure)
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Patient Satisfaction Score
Periodo de tiempo: Post-intervention (at the conclusion of the central venous catheterization procedure)
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Assessed using a Numeric Rating Scale (NRS) where patients rate their overall satisfaction with the anesthetic method.
The scale ranges from 0 (completely unsatisfied) to 4 (completely satisfied).
Higher scores indicate greater satisfaction.
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Post-intervention (at the conclusion of the central venous catheterization procedure)
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Incidence of Treatment-Related Adverse Events
Periodo de tiempo: From the start of the intervention through 30 minutes post-procedure
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Percentage of participants experiencing specific adverse events, including nausea/vomiting, unpleasant dreams, paresthesias, dizziness, and euphoria, as recorded by subjective patient reports.
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From the start of the intervention through 30 minutes post-procedure
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Ana Cvetković, MD, PhD, Institute for Oncology and Radiology of Serbia
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Estimado)
Finalización primaria
Finalización del estudio (Estimado)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- 01-1/2025/1264
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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Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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