Using Indirect Calorimetry for Liver Transplants Patients

NCT ID: NCT03622268

Last Updated: 2018-08-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-12-01

Study Completion Date

2018-08-01

Brief Summary

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Although predicted REE calculated using the Penn state 1988 method agreed (ICC 0.61, p=0.00014) with the measured REE, all three predictive equations had a fixed bias and appeared to be inaccurate for predicting REE for liver transplant recipients.

Therefore, precise measurements using indirect calorimetry may be helpful when treating critically ill patients to avoid underestimating or overestimating their metabolic needs.

Detailed Description

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Rationale: The aim of this study was to compare predictive equations with indirect calorimetry and identify the appropriate energy expenditure requirement of liver transplant(LT) recipients in South Korea.

Methods: This prospective observational study was conducted in a surgical ICU in an academic tertiary hospital over three months. Thirty mechanically ventilated patients who had received liver transplants and were expected to stay in the ICU more than 2 days were studied. Resting energy expenditure(REE) was measured 48 hours after ICU admission using open-circuit indirect calorimetry. Theoretical REE was estimated using three predictive equations: Harris-Benedict methods, lreton-Jones ventilated, and Penn state 1988. The REEs derived from each predictive equation were compared with the measured REE using an intraclass correlation coefficient (ICC) and a Bland-Altman plot.

Conditions

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Indirect Calorimetry

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Indirect calorimetry measurement

Using indirect calorimetry for measure resting energy expenditure

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* mechanically ventilated patients who had received liver transplants and were expected to stay in the ICU more than 2 days were studied.

Exclusion Criteria

* Refusal
* patients who were extubated before 36 hrs
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Asan Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Suk-Kyung

Associate professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Suk-kyung Hong, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Asan Medical Center

Locations

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Hakjae Lee

Seoul, , South Korea

Site Status

Countries

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South Korea

References

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McClave SA, Martindale RG, Kiraly L. The use of indirect calorimetry in the intensive care unit. Curr Opin Clin Nutr Metab Care. 2013 Mar;16(2):202-8. doi: 10.1097/MCO.0b013e32835dbc54.

Reference Type RESULT
PMID: 23340008 (View on PubMed)

Sundstrom M, Tjader I, Rooyackers O, Wernerman J. Indirect calorimetry in mechanically ventilated patients. A systematic comparison of three instruments. Clin Nutr. 2013 Feb;32(1):118-21. doi: 10.1016/j.clnu.2012.06.004. Epub 2012 Jul 3.

Reference Type RESULT
PMID: 22763268 (View on PubMed)

Kross EK, Sena M, Schmidt K, Stapleton RD. A comparison of predictive equations of energy expenditure and measured energy expenditure in critically ill patients. J Crit Care. 2012 Jun;27(3):321.e5-12. doi: 10.1016/j.jcrc.2011.07.084. Epub 2012 Mar 14.

Reference Type RESULT
PMID: 22425340 (View on PubMed)

Xiao GZ, Su L, Duan PK, Wang QX, Huang Y. [Comparison of measuring energy expenditure with indirect calorimetry and traditional estimation of energy expenditure in patients in intensive care unit]. Zhongguo Wei Zhong Bing Ji Jiu Yi Xue. 2011 Jul;23(7):392-5. Chinese.

Reference Type RESULT
PMID: 21787465 (View on PubMed)

Other Identifiers

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AsanMC-LTindirectKcal

Identifier Type: -

Identifier Source: org_study_id

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