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Increasing Enteral Protein Intake in Critically Ill Trauma and Surgical Patients

6 de noviembre de 2018 actualizado por: Grant E. O'Keefe, University of Washington
Published guidelines recommend at least 2 gm/kg/day of protein for critically ill surgical patients. It may not be possible to achieve this level of intake using polymeric enteral nutritional formula and protein or amino acid supplementation will be necessary. This was a retrospective cohort study in which the investigators reviewed critically ill trauma and surgical patients treated with supplemental enteral protein according to a protocol aimed to deliver a total of 2 gm/kg/day of protein. The investigators studied detailed nutritional data from a 2 week period after admission and obtained additional data through discharge to determine caloric intake, protein intake and complications. The investigators also compared urine nitrogen excretion and visceral protein (transthyretin) concentrations between those who received early supplementation with those who did not.

Descripción general del estudio

Descripción detallada

This is a retrospective analysis of a treatment approach designed to increase enteral protein intake in critically ill surgical patients. The study investigators recently developed guidelines aimed to improve early enteral protein delivery in critically ill patients. The guidelines were tested for 6 months; applying it to 53 patients (April to September, 2016) in order to determine its safety and effectiveness. All subjects were admitted to the surgical intensive care unit and identified by one of the investigators as being appropriate for protein supplementation. The guidelines required that patients were: 1. Deemed ready to start enteral nutritional support by the attending intensivist within 72 hours of admission to the intensive care unit, 2. No contraindications to full enteral support, 3. No history of chronic liver disease, 4. Serum creatinine <2.0 mg/dl.

In order to compare biochemical markers of nutritional support, the investigators used the electronic medical record to identify all patients admitted to the surgical intensive care unit who were in the ICU long enough to undergo testing of 24 hour urine nitrogen excretion from January to December 2016.8 As part of standard clinical practice, measurement of urine nitrogen excretion is performed in patients who are in the ICU and receiving nutritional support for more than one week. In addition to measuring TUN, the investigators also monitor the response to nutritional support and recovery from critical illness using serum transthyretin (also known as prealbumin).

This review resulted in a cohort of 118 patients who underwent at least one TUN measurement. Of these, 27 received early protein supplementation and 91 did not and these provide the basis for the comparisons described below. We wanted to measure the effect of early supplemental protein treatment on nitrogen excretion and on serum transthyretin concentrations as the patients recovered. We therefore, compared nitrogen excretion and serum transthyretin between those who received early supplementation and those who did not.

Tipo de estudio

Intervencionista

Inscripción (Actual)

118

Fase

  • No aplica

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

14 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • All critically ill adult trauma (blunt and penetrating) and all surgical critical care patients ≥ 18 years old patients where enteral nutrition is begun by the attending physician during the first 48 hours after injury, and are expected to require nutritional support for at least 1 week

Exclusion Criteria:

  • Significant chronic organ failure
  • Severe malnutrition pre-existing prior to ICU admission
  • Not expected to survive due to the severity of their illness or traumatic injuries
  • Intestinal discontinuity
  • Short bowel syndrome
  • Bowel obstruction
  • Enterocutaneous fistula
  • Intestinal ischemia
  • Massive gastrointestinal hemorrhage
  • Inability to obtain enteral access

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Modular enteral protein - Prosource
Subjects are patients admitted to the surgical intensive care unit and identified by one of the investigators as being appropriate for protein supplementation. Guidelines required that patients were: 1. Deemed ready to start enteral nutritional support by the attending physician within 72 hours of admission to the intensive care unit, 2. No contraindications to full enteral support, 3. No history of chronic liver disease, 4. Serum creatinine < 2.0 mg/dl.
Supplemental protein (2 gm/kg/day of Prosource; Medtrition, Lancaster, PA) was administered via the nasal/oral feeding tube in 60 - 180 ml bolus infusions 2 - 4 times per day, independently of the enteral formula received. That is, the daily target amount of protein was initially administered as the supplement boluses and only after the enteral formula infusion approached the target rate was the amount of supplement decreased. Supplemental protein was reduced by 50% once the patient received 75% of targeted caloric intake over the previous day (0700 - 0700). Once the patient reached the target caloric intake for 48 hours, the amount of supplemental protein was decreased in order that the total protein prescribed equaled 2 gm/kg/day.
Sin intervención: Control group
The investigators used the electronic medical record to identify control subjects. These were patients admitted to the surgical intensive care unit who were in the ICU long enough to undergo testing of 24 hour urine nitrogen excretion from January to December 2016.8 As part of standard clinical practice, measurement of urine nitrogen excretion is performed in patients who are in the ICU and receiving nutritional support for more than one week.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Enteral protein intake
Periodo de tiempo: 14 days
Amount of enteral protein intake during first 14 days
14 days
Total urine nitrogen excretion
Periodo de tiempo: up to 2 weeks after admission
Nitrogen excreted in urine over 24 hour period
up to 2 weeks after admission

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Ventilator-free days
Periodo de tiempo: Up to 28 days
Days alive and not receiving mechanical ventilation in initial 28 days
Up to 28 days

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

1 de abril de 2016

Finalización primaria (Actual)

30 de septiembre de 2016

Finalización del estudio (Actual)

30 de septiembre de 2016

Fechas de registro del estudio

Enviado por primera vez

5 de noviembre de 2018

Primero enviado que cumplió con los criterios de control de calidad

6 de noviembre de 2018

Publicado por primera vez (Actual)

7 de noviembre de 2018

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

7 de noviembre de 2018

Última actualización enviada que cumplió con los criterios de control de calidad

6 de noviembre de 2018

Última verificación

1 de noviembre de 2018

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • STUDY00002185

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

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. .

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