NCT05931068

Brief Summary

Rationale: Complication rates after major liver resections remain as high as 43%. Many initiatives have been taken to reduce postoperative morbidity. As such, prehabilitation programmes are increasingly used for patients undergoing major abdominal surgery. Improvement of aerobic fitness has been proven to reduce complication rates, especially in high-risk patients (those with a low preoperative aerobic capacity). Different conceptual hypotheses exist of the underlying mechanism of variability in postoperative complications and prehabilitation response. One of the complementary rationales focusses on homeostasis-allostasis before and after surgery, more specifically on the preoperative aerobic capacity to meet postoperative metabolic demands. However, more insight in postoperative metabolic demands (energy expenditure) during in-hospital recovery from major abdominal surgery in relation to preoperative resting metabolic demands and maximal aerobic capacity is essential to understand the increase in metabolic demands coinciding with major surgery in relation to the body's reserve capacity. This information can be used to better understand the rationale behind exercise prehabilitation, as well as to optimize the content of preoperative treatment for unfit patients, for instance by means of personalized prehabilitation programs that might improve postoperative outcomes. Objective: This study aims to explore the difference of pre- and postoperative energy expenditure in patients undergoing major elective liver resection and relate this to their preoperative aerobic capacity. Study design: The study will be a prospective observational study with thorough pre- and postoperative measurements of energy expenditure. Energy expenditure will be measured using the doubly labelled water method, as well as by indirect calorimetry. To assess aerobic capacity, cardiopulmonary exercise testing will be performed pre- and postoperatively. Additionally, accelerometers will be used to evaluate pre- and postoperative physical activity levels. Study population: Patients aged ≥18 years undergoing major liver resection (≥3 segments) will be asked to participate. The inability to perform cardiopulmonary exercise testing, neo-adjuvant chemotherapy, and cirrhotic liver are reasons for exclusion. Main study parameters/endpoints: The main study parameter is the difference of energy expenditure pre- and postoperatively, as measured with doubly labelled water and indirect calorimetry. Secondary endpoints: Additionally, as secondary endpoints, aerobic fitness, physical activity level, and postoperative complications will be assessed.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2023

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

May 4, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 5, 2023

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 11, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2025

Completed
Last Updated

August 5, 2024

Status Verified

August 1, 2024

Enrollment Period

1.9 years

First QC Date

May 4, 2023

Last Update Submit

August 2, 2024

Conditions

Keywords

Energy expenditureAerobic capacityResting metabolism rateMetabolic demandPhysical activityPre- and post-operative assessment

Outcome Measures

Primary Outcomes (2)

  • Change in energy expenditure using direct calorimetry

    Direct calorimetry applying the doubly labelled water method

    through monitoring period, average of 2 weeks perioperatively

  • Change in energy expenditure using indirect calorimetry

    Indirect calorimetry applying a ventilated hood system

    through monitoring period, average of 2 weeks perioperatively

Secondary Outcomes (7)

  • Preoperative aerobic fitness

    One week prior to surgery

  • Postoperative aerobic fitness

    end of monitoring period, average of 2 weeks postoperatively

  • Perioperative physical activity level

    through monitoring period, average of 2 weeks perioperatively

  • Postoperative complications

    30-day postoperatively

  • Liver-specific postoperative complications

    30-day postoperatively

  • +2 more secondary outcomes

Interventions

Pre- and postoperative assessment will consist of measurement of energy expenditure (direct and indirect calorimetry), aerobic capacity (cardiopulmonary exercise test), and physical activity (accelerometry).

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

adults, requiring major liver resection (≥3 segments) for any kind of malignant indication at Maastricht UMC+

You may qualify if:

  • Age ≥18 years
  • Scheduled for open liver resection (≥3 segments) at the MUMC+
  • Able to understand the Dutch language sufficiently to give consent and follow orders during study assessments

You may not qualify if:

  • Cirrhotic liver
  • Unable or unwilling to perform CPET or indirect calorimetry
  • Liver ablation as the primary treatment
  • Termination of surgery due to too extensive oncological disease (open-close surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maastricht University Medical Center+

Maastricht, Netherlands

RECRUITING

Related Publications (26)

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    PMID: 31188152BACKGROUND
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    PMID: 26864728BACKGROUND
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    PMID: 12171767BACKGROUND
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    PMID: 32253075BACKGROUND
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    PMID: 2043597BACKGROUND
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    PMID: 7736290BACKGROUND
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    PMID: 31543335BACKGROUND
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    PMID: 29452805BACKGROUND
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    PMID: 3110126BACKGROUND
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    PMID: 27419042BACKGROUND
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    PMID: 25532078BACKGROUND
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    PMID: 21251875BACKGROUND
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    PMID: 6880820BACKGROUND
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    PMID: 31858249BACKGROUND
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    PMID: 11832252BACKGROUND

MeSH Terms

Conditions

NeoplasmsLiver DiseasesLiver NeoplasmsMotor Activity

Interventions

Lead

Condition Hierarchy (Ancestors)

Digestive System DiseasesDigestive System NeoplasmsNeoplasms by SiteBehavior

Intervention Hierarchy (Ancestors)

Metals, HeavyElementsInorganic ChemicalsMetals

Study Officials

  • S.W.M. Olde Damink, MD MSc PhD

    Maastricht University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Nicole Hildebrand, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Coordinating Investigator

Study Record Dates

First Submitted

May 4, 2023

First Posted

July 5, 2023

Study Start

May 1, 2023

Primary Completion

April 11, 2025

Study Completion

August 31, 2025

Last Updated

August 5, 2024

Record last verified: 2024-08

Locations