Gastric emptying of three liquid oral preoperative metabolic preconditioning regimens measured by magnetic resonance imaging in healthy adult volunteers: A randomised double-blind, crossover study
Authors: Lobo, D.N., Hendry, P.O., Rodrigues, G., Marciani, L., Totman, J.J., Wright, J.W., Preston, T., Gowland, P., Spiller, R.C. and Fearon, K.C.H.
Journal: Clinical Nutrition
Volume: 28
Issue: 6
Pages: 636-641
ISSN: 0261-5614
DOI: 10.1016/j.clnu.2009.05.002
Abstract:Background & aims: Preoperative starvation has many undesirable effects but the minimum length of fasting is limited by gastric emptying, which may be dependent on nutrient content, viscosity and osmolarity of the feed. We compared the gastric emptying of two types of preoperative metabolic preconditioning drinks [Oral Nutritional Supplement (ONS) (Fresenius Kabi, Germany) and preOp® (Nutricia Clinical Care, UK)] in healthy volunteers. Methods: Twenty (10 male, 10 female) healthy adult volunteers were studied on 3 separate occasions in a randomised crossover manner. Volunteers ingested 400 ml preOp®, which is a clear carbohydrate drink (CCD) (50 g carbohydrate, 0 g protein), 70 g ONS (50 g carbohydrate and 15 g glutamine) dissolved in water to a total volume of 400 ml (ONS400) and 300 ml (ONS300). Gastric emptying time was measured using magnetic resonance imaging. Results: Mean (95% CI) T50 and T100 gastric emptying times for CCD were significantly lower (p < 0.001) compared with ONS400 and ONS300. T50 was 47 (39-55), 78 (69-87) and 81 (70-92) min for CCD, ONS400 and ONS300 respectively. Correspondingly T100 was 94 (79-110), 156 (138-173) and 162 (140-184) min. Residual gastric volumes returned to baseline 120 min after CCD and 180 min after ONS400 and ONS300. Conclusions: The faster gastric emptying for CCD compared to ONS400 and ONS300 signifies that gastric emptying may be more dependent on nutrient load than volume or viscosity in healthy volunteers. While it is safe to give CCD 2 h preoperatively, ONS400 and ONS300 should be given at least 3 h preoperatively. © 2009 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism.
Source: Scopus
Gastric emptying of three liquid oral preoperative metabolic preconditioning regimens measured by magnetic resonance imaging in healthy adult volunteers: a randomised double-blind, crossover study.
Authors: Lobo, D.N., Hendry, P.O., Rodrigues, G., Marciani, L., Totman, J.J., Wright, J.W., Preston, T., Gowland, P., Spiller, R.C. and Fearon, K.C.H.
Journal: Clin Nutr
Volume: 28
Issue: 6
Pages: 636-641
eISSN: 1532-1983
DOI: 10.1016/j.clnu.2009.05.002
Abstract:BACKGROUND & AIMS: Preoperative starvation has many undesirable effects but the minimum length of fasting is limited by gastric emptying, which may be dependent on nutrient content, viscosity and osmolarity of the feed. We compared the gastric emptying of two types of preoperative metabolic preconditioning drinks [Oral Nutritional Supplement (ONS) (Fresenius Kabi, Germany) and preOp (Nutricia Clinical Care, UK)] in healthy volunteers. METHODS: Twenty (10 male, 10 female) healthy adult volunteers were studied on 3 separate occasions in a randomised crossover manner. Volunteers ingested 400 ml preOp, which is a clear carbohydrate drink (CCD) (50 g carbohydrate, 0 g protein), 70 g ONS (50 g carbohydrate and 15 g glutamine) dissolved in water to a total volume of 400 ml (ONS400) and 300 ml (ONS300). Gastric emptying time was measured using magnetic resonance imaging. RESULTS: Mean (95% CI) T(50) and T(100) gastric emptying times for CCD were significantly lower (p<0.001) compared with ONS400 and ONS300. T(50) was 47 (39-55), 78 (69-87) and 81 (70-92)min for CCD, ONS400 and ONS300 respectively. Correspondingly T(100) was 94 (79-110), 156 (138-173) and 162 (140-184)min. Residual gastric volumes returned to baseline 120 min after CCD and 180 min after ONS400 and ONS300. CONCLUSIONS: The faster gastric emptying for CCD compared to ONS400 and ONS300 signifies that gastric emptying may be more dependent on nutrient load than volume or viscosity in healthy volunteers. While it is safe to give CCD 2h preoperatively, ONS400 and ONS300 should be given at least 3h preoperatively.
Source: PubMed
Gastric emptying of three liquid oral preoperative metabolic preconditioning regimens measured by magnetic resonance imaging in healthy adult volunteers: a randomised double-blind, crossover study
Authors: Lobo, D.N., Hendry, P.O., Rodrigues, G., Marciani, L., Totman, J.J., Wright, J.W., Preston, T., Gowland, P., Spiller, R.C. and Fearon, K.C.H.
Journal: Clinical Nutrition
Volume: 28
Pages: 636-641
Publisher: Churchill Livingstone
Source: Manual
Gastric emptying of three liquid oral preoperative metabolic preconditioning regimens measured by magnetic resonance imaging in healthy adult volunteers: a randomised double-blind, crossover study.
Authors: Lobo, D.N., Hendry, P.O., Rodrigues, G., Marciani, L., Totman, J.J., Wright, J.W., Preston, T., Gowland, P., Spiller, R.C. and Fearon, K.C.H.
Journal: Clinical nutrition (Edinburgh, Scotland)
Volume: 28
Issue: 6
Pages: 636-641
eISSN: 1532-1983
ISSN: 0261-5614
DOI: 10.1016/j.clnu.2009.05.002
Abstract:Background & aims
Preoperative starvation has many undesirable effects but the minimum length of fasting is limited by gastric emptying, which may be dependent on nutrient content, viscosity and osmolarity of the feed. We compared the gastric emptying of two types of preoperative metabolic preconditioning drinks [Oral Nutritional Supplement (ONS) (Fresenius Kabi, Germany) and preOp (Nutricia Clinical Care, UK)] in healthy volunteers.Methods
Twenty (10 male, 10 female) healthy adult volunteers were studied on 3 separate occasions in a randomised crossover manner. Volunteers ingested 400 ml preOp, which is a clear carbohydrate drink (CCD) (50 g carbohydrate, 0 g protein), 70 g ONS (50 g carbohydrate and 15 g glutamine) dissolved in water to a total volume of 400 ml (ONS400) and 300 ml (ONS300). Gastric emptying time was measured using magnetic resonance imaging.Results
Mean (95% CI) T(50) and T(100) gastric emptying times for CCD were significantly lower (p<0.001) compared with ONS400 and ONS300. T(50) was 47 (39-55), 78 (69-87) and 81 (70-92)min for CCD, ONS400 and ONS300 respectively. Correspondingly T(100) was 94 (79-110), 156 (138-173) and 162 (140-184)min. Residual gastric volumes returned to baseline 120 min after CCD and 180 min after ONS400 and ONS300.Conclusions
The faster gastric emptying for CCD compared to ONS400 and ONS300 signifies that gastric emptying may be more dependent on nutrient load than volume or viscosity in healthy volunteers. While it is safe to give CCD 2h preoperatively, ONS400 and ONS300 should be given at least 3h preoperatively.Source: Europe PubMed Central