The Effect of High Dose Arginine Infusion on Hemodynamic and Peripheral Microcirculation
The Effect of High Dose Arginine Infusion on Hemodynamic and Peripheral Microcirculation: a Randomized, Controlled Clinical Trial in Patients Receiving Peripheral Vascular Surgery
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- Fase 4
Contactos y Ubicaciones
Ubicaciones de estudio
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Vienna, Austria, 1090
- Medical University of Vienna
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- female or male patients receiving peripheral bypass surgery
- age between 55 and 75 years
Exclusion Criteria:
- metabolic acidosis
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Ciencia básica
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Triple
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
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Comparador de placebos: Placebo
NaCl 0.9% intravenously for 24 hours after induction of anaesthesia
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NaCl 0.9% intravenously for 24h
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Comparador activo: Arginine
L-arginine-hydrochlorid (0.35 g/kg body weight) intravenously for 24 hours after induction of anaesthesia
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L-arginine-hydrochlorid (0.35 g/kg body weight) intravenously for 24 hours
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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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Change from baseline in temperature gradient at 3h post-surgery
Periodo de tiempo: baseline and 3h post-surgery
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One temperature probe is attached to the index finger of the lying patients, a second probe at the radial side of the forearm, midway between elbow and the wrist.
Temperature gradient is calculated by subtracting the value obtained at the fingertip from the forearm value and expressed in °C.
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baseline and 3h post-surgery
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change from baseline in Laser Doppler blood perfusion imaging at 1h
Periodo de tiempo: baseline & 1h post-surgery
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Perfusion values are expressed as arbitrary perfusion units.
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baseline & 1h post-surgery
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Change from baseline in Laser Doppler blood perfusion imaging at 2h
Periodo de tiempo: baseline & 2h post-surgery
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Perfusion values are expressed as arbitrary perfusion units.
|
baseline & 2h post-surgery
|
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Change from baseline in Laser Doppler blood perfusion imaging at 3h
Periodo de tiempo: baseline & 3h post-surgery
|
Perfusion values are expressed as arbitrary perfusion units.
|
baseline & 3h post-surgery
|
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Change from baseline in Laser Doppler blood perfusion imaging at 24h
Periodo de tiempo: baseline & 24h post-surgery
|
Perfusion values are expressed as arbitrary perfusion units.
|
baseline & 24h post-surgery
|
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Change from baseline in Laser Doppler blood perfusion imaging at 48h
Periodo de tiempo: baseline & 48h post-surgery
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Perfusion values are expressed as arbitrary perfusion units.
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baseline & 48h post-surgery
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Change from baseline in asymmetric dimethylarginine (ADMA) at 3h
Periodo de tiempo: baseline & 3h post-surgery
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Asymmetric dimethylarginine is measured by ELISA and expressed in µmol/l.
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baseline & 3h post-surgery
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Change from baseline in asymmetric dimethylarginine (ADMA) at 24h
Periodo de tiempo: baseline & 24h post-surgery
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Asymmetric dimethylarginine is measured by ELISA and expressed in µmol/l.
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baseline & 24h post-surgery
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Change from baseline in asymmetric dimethylarginine (ADMA) at 48h
Periodo de tiempo: baseline & 48h post-surgery
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Asymmetric dimethylarginine is measured by ELISA and expressed in µmol/l.
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baseline & 48h post-surgery
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Change from baseline in plasma arginine concentration at 3h
Periodo de tiempo: baseline & 3h post-surgery
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L-arginine concentration is measured by HPLC and expressed in µmol/l.
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baseline & 3h post-surgery
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Change from baseline in plasma arginine concentration at 24h
Periodo de tiempo: baseline & 24h post-surgery
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L-arginine concentration is measured by HPLC and expressed in µmol/l.
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baseline & 24h post-surgery
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Change from baseline in plasma arginine concentration at 48h
Periodo de tiempo: baseline & 48h post-surgery
|
L-arginine concentration is measured by HPLC and expressed in µmol/l.
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baseline & 48h post-surgery
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Change from baseline in temperature gradient at 1h
Periodo de tiempo: baseline & 1h post-surgery
|
One temperature probe is attached to the index finger of the lying patients, a second probe at the radial side of the forearm, midway between elbow and the wrist.
Temperature gradient is calculated by subtracting the value obtained at the fingertip from the forearm value and expressed in °C.
|
baseline & 1h post-surgery
|
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Change from baseline in temperature gradient at 2h
Periodo de tiempo: baseline & 2h post-surgery
|
One temperature probe is attached to the index finger of the lying patients, a second probe at the radial side of the forearm, midway between elbow and the wrist.
Temperature gradient is calculated by subtracting the value obtained at the fingertip from the forearm value and expressed in °C.
|
baseline & 2h post-surgery
|
|
Change from baseline in temperature gradient at 24h
Periodo de tiempo: baseline & 24h post-surgery
|
One temperature probe is attached to the index finger of the lying patients, a second probe at the radial side of the forearm, midway between elbow and the wrist.
Temperature gradient is calculated by subtracting the value obtained at the fingertip from the forearm value and expressed in °C.
|
baseline & 24h post-surgery
|
|
Change from baseline in temperature gradient at 48h
Periodo de tiempo: baseline & 48h post-surgery
|
One temperature probe is attached to the index finger of the lying patients, a second probe at the radial side of the forearm, midway between elbow and the wrist.
Temperature gradient is calculated by subtracting the value obtained at the fingertip from the forearm value and expressed in °C.
|
baseline & 48h post-surgery
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Director de estudio: Jörg Michael Hiesmayr, Prof. Dr., Medical University of Vienna
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
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 (Estimar)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
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
- MUW_Arginin
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