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Does adding milk to tea delay gastric emptying?

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Does adding milk to tea delay gastric emptying? / Hillyard, S.; Cowman, S.; Ramasundaram, R.; Seed, P. T.; O'Sullivan, G.

In: British Journal of Anaesthesia, Vol. 112, No. 1, 01.2014, p. 66-71.

Research output: Contribution to journalArticle

Harvard

Hillyard, S, Cowman, S, Ramasundaram, R, Seed, PT & O'Sullivan, G 2014, 'Does adding milk to tea delay gastric emptying?', British Journal of Anaesthesia, vol. 112, no. 1, pp. 66-71. https://doi.org/10.1093/bja/aet261

APA

Hillyard, S., Cowman, S., Ramasundaram, R., Seed, P. T., & O'Sullivan, G. (2014). Does adding milk to tea delay gastric emptying? British Journal of Anaesthesia, 112(1), 66-71. https://doi.org/10.1093/bja/aet261

Vancouver

Hillyard S, Cowman S, Ramasundaram R, Seed PT, O'Sullivan G. Does adding milk to tea delay gastric emptying? British Journal of Anaesthesia. 2014 Jan;112(1):66-71. https://doi.org/10.1093/bja/aet261

Author

Hillyard, S. ; Cowman, S. ; Ramasundaram, R. ; Seed, P. T. ; O'Sullivan, G. / Does adding milk to tea delay gastric emptying?. In: British Journal of Anaesthesia. 2014 ; Vol. 112, No. 1. pp. 66-71.

Bibtex Download

@article{2f2c8ca69f8e4d7c84bbf20a459f2dcd,
title = "Does adding milk to tea delay gastric emptying?",
abstract = "Background: Many preoperative fasting guidelines suggest that hot tea or coffee with milk added should be considered similar to solid food, allowing an interval of 6 h before commencing anaesthesia. There is little evidence to support these instructions, with recent guidelines undecided on the issue. This study aimed to establish whether there was a clinically significant delay in gastric emptying associated with adding a modest amount of milk to tea.Methods: This randomized controlled crossover study was conducted in 10 healthy volunteers. The paracetamol absorption technique and real-time ultrasound measurement of the cross-sectional area of the gastric antrum were used to assess gastric emptying after ingestion of 300 ml of black tea or 300 ml of tea with milk (250 ml black tea plus 50 ml of full fat milk).Results: The mean difference in the time to reach the peak paracetamol concentration (tmax) was −8 min [95{\%} confidence interval (CI) −23.1 to 7] in favour of tea with milk. Ultrasound assessment indicated that the geometric mean of the half-time to gastric emptying (T1/2) after tea without milk was 22.7 (95{\%} CI 12.7–40.9) min and after tea with milk 23.6 (95{\%} CI 13.5–41.0) min (ratio 1.04) (95{\%} CI 0.47–2.29).Conclusions: This study demonstrated no difference in gastric emptying times when a modest amount of milk was added to tea. These findings suggest that it may be acceptable to allow patients to add a small quantity of milk to their tea or coffee and follow the same fasting restrictions applied to clear fluids.",
keywords = "gastric emptying, paracetamol, preoperative care, ultrasound",
author = "S. Hillyard and S. Cowman and R. Ramasundaram and Seed, {P. T.} and G. O'Sullivan",
year = "2014",
month = "1",
doi = "10.1093/bja/aet261",
language = "English",
volume = "112",
pages = "66--71",
journal = "British Journal of Anaesthesia",
issn = "0007-0912",
publisher = "Elsevier",
number = "1",

}

RIS (suitable for import to EndNote) Download

TY - JOUR

T1 - Does adding milk to tea delay gastric emptying?

AU - Hillyard, S.

AU - Cowman, S.

AU - Ramasundaram, R.

AU - Seed, P. T.

AU - O'Sullivan, G.

PY - 2014/1

Y1 - 2014/1

N2 - Background: Many preoperative fasting guidelines suggest that hot tea or coffee with milk added should be considered similar to solid food, allowing an interval of 6 h before commencing anaesthesia. There is little evidence to support these instructions, with recent guidelines undecided on the issue. This study aimed to establish whether there was a clinically significant delay in gastric emptying associated with adding a modest amount of milk to tea.Methods: This randomized controlled crossover study was conducted in 10 healthy volunteers. The paracetamol absorption technique and real-time ultrasound measurement of the cross-sectional area of the gastric antrum were used to assess gastric emptying after ingestion of 300 ml of black tea or 300 ml of tea with milk (250 ml black tea plus 50 ml of full fat milk).Results: The mean difference in the time to reach the peak paracetamol concentration (tmax) was −8 min [95% confidence interval (CI) −23.1 to 7] in favour of tea with milk. Ultrasound assessment indicated that the geometric mean of the half-time to gastric emptying (T1/2) after tea without milk was 22.7 (95% CI 12.7–40.9) min and after tea with milk 23.6 (95% CI 13.5–41.0) min (ratio 1.04) (95% CI 0.47–2.29).Conclusions: This study demonstrated no difference in gastric emptying times when a modest amount of milk was added to tea. These findings suggest that it may be acceptable to allow patients to add a small quantity of milk to their tea or coffee and follow the same fasting restrictions applied to clear fluids.

AB - Background: Many preoperative fasting guidelines suggest that hot tea or coffee with milk added should be considered similar to solid food, allowing an interval of 6 h before commencing anaesthesia. There is little evidence to support these instructions, with recent guidelines undecided on the issue. This study aimed to establish whether there was a clinically significant delay in gastric emptying associated with adding a modest amount of milk to tea.Methods: This randomized controlled crossover study was conducted in 10 healthy volunteers. The paracetamol absorption technique and real-time ultrasound measurement of the cross-sectional area of the gastric antrum were used to assess gastric emptying after ingestion of 300 ml of black tea or 300 ml of tea with milk (250 ml black tea plus 50 ml of full fat milk).Results: The mean difference in the time to reach the peak paracetamol concentration (tmax) was −8 min [95% confidence interval (CI) −23.1 to 7] in favour of tea with milk. Ultrasound assessment indicated that the geometric mean of the half-time to gastric emptying (T1/2) after tea without milk was 22.7 (95% CI 12.7–40.9) min and after tea with milk 23.6 (95% CI 13.5–41.0) min (ratio 1.04) (95% CI 0.47–2.29).Conclusions: This study demonstrated no difference in gastric emptying times when a modest amount of milk was added to tea. These findings suggest that it may be acceptable to allow patients to add a small quantity of milk to their tea or coffee and follow the same fasting restrictions applied to clear fluids.

KW - gastric emptying

KW - paracetamol

KW - preoperative care

KW - ultrasound

UR - http://www.scopus.com/inward/record.url?scp=84890511256&partnerID=8YFLogxK

U2 - 10.1093/bja/aet261

DO - 10.1093/bja/aet261

M3 - Article

AN - SCOPUS:84890511256

VL - 112

SP - 66

EP - 71

JO - British Journal of Anaesthesia

JF - British Journal of Anaesthesia

SN - 0007-0912

IS - 1

ER -

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