- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT02175810
Impact of Bariatric Surgery on Cardiorespiratory Function
Impact of Bariatric Surgery on Cardiorespiratory Function: an Observational Study
Obesity is a growing problem worldwide and its prevention has become one of the leading priorities for the World Health Organisation. Obesity results from chronic imbalance between energy intake and energy expenditure. Although early prevention of obesity is preferable, surgical treatment is often required for severely obese people.
Bariatric surgery has been shown to be the most effective therapy for severe obesity. Weight loss following bariatric surgery results in significant improvements in coexisting comorbidities, such as diabetes and hypertension but there is controversy whether bariatric surgery also improves aerobic capacity.
The purpose of this study is to investigate the effects of bariatric surgery on cardiopulmonary function and on daily physical activity. It is hypothesized that bariatric surgery will improve aerobic capacity and result in beneficial lifestyle changes from sedentary to more active.
Descripción general del estudio
Estado
Condiciones
Tipo de estudio
Inscripción (Anticipado)
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Dimitra Nikoletou, PhD
- Número de teléfono: +44 20 8725 5647
- Correo electrónico: dinikole@sgul.ac.uk
Ubicaciones de estudio
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London, Reino Unido, SW17 0RE
- Reclutamiento
- St George's Healthcare NHS Trust
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Contacto:
- Dimitra Nikoletou
- Número de teléfono: +44 20 8725 5647
- Correo electrónico: dinikole@sgul.ac.uk
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Sub-Investigador:
- Emma R McGlone
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Sub-Investigador:
- Ommar A Khan
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- Ages 18 years to 50 years
- Patients enrolled in the bariatric surgery program of St George's Hospital with BMI > 40 kg/m2, or 35-40 kg/m2 in the presence of other obesity-related comorbidities such as hypertension or type- 2 diabetes
Exclusion Criteria:
- Locomotor difficulties which would prevent participants from completing the cardiopulmonary exercise testing
- Weight > 190 kg (due to weight restrictions of equipment used to transfer patients in the event of medical emergencies)
- Cognitive impairment
- Patients unable to follow instructions in English
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
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Cardiorespiratory function assessed by peak oxygen consumption (VO2peak)
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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One to two weeks before surgery and six months after surgery
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Lung function
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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Lung function will be assessed by spirometry and body plethysmography
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One to two weeks before surgery and six months after surgery
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Heart function
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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Echocardiography will be performed to assess heart function.
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One to two weeks before surgery and six months after surgery
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Inspiratory muscle strength
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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Maximal inspiratory pressure and sniff nasal pressure will be recorded.
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One to two weeks before surgery and six months after surgery
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Peripheral muscle strength
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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Maximum isometric strength of hand/ forearm, quadriceps and hip flexors muscles will be evaluated
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One to two weeks before surgery and six months after surgery
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Free living sedentary and physical activity times
Periodo de tiempo: One to two weeks before surgery and six months after surgery
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Daily physical activity habits will be assessed by an accelerometer and International Physical Activity Questionnaire: Long (IPAQ-Long).
Participants will be required to wear the accelerometer for four consecutive days during the two study points.
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One to two weeks before surgery and six months after surgery
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Marcia S Volpe, Universidade Federal Triangulo Mineiro
- Silla de estudio: Dimitra Nikoletou, Kingston University and St George's University of London
- Director de estudio: Marcus Reddy, St George's Healthcare NHS Trust
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Anticipado)
Finalización del estudio (Anticipado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
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
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 13.0217
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .