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Bioelectrical Impedance Analysis for Perioperative Fluid Evaluation in Colorectal Cancer Surgery

Usefulness of Bioelectrical Impedance Analysis for Perioperative Fluid Evaluation and Complication Prediction in Oncological Patients Undergoing Colorectal Surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07404527
Enrollment
85
Registered
2026-02-11
Start date
2023-10-24
Completion date
2026-12-31
Last updated
2026-07-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colorectal Cancer, Fluid Imbalance, Postoperative Complications

Keywords

Bioelectrical Impedance Analysis, BIA, Colorectal Surgery

Brief summary

This study evaluates the usefulness of bioelectrical impedance analysis (BIA) for perioperative fluid evaluation and prediction of postoperative complications in oncological patients undergoing colorectal surgery. Bioelectrical impedance analysis is used to assess body fluid status and body composition before and after surgery. The study aims to determine whether perioperative BIA measurements may contribute to improved assessment of fluid balance and early identification of patients at increased risk of postoperative complications. The study is conducted at the Institute of Oncology Ljubljana in patients undergoing colorectal surgery for oncological indications.

Detailed description

Accurate perioperative fluid assessment is important in patients undergoing colorectal surgery, as both fluid overload and inadequate fluid replacement may contribute to postoperative complications and delayed recovery. Bioelectrical impedance analysis (BIA) is a non-invasive diagnostic method that enables assessment of body composition and fluid status. In this study, BIA measurements are performed in oncological patients undergoing colorectal surgery in order to evaluate perioperative changes in body fluid compartments and to assess whether these measurements may help predict postoperative complications. The study evaluates the relationship between perioperative BIA parameters and clinical outcomes after colorectal surgery. The aim is to assess whether BIA may be useful as an additional diagnostic method for perioperative fluid evaluation and early identification of patients at increased risk of complications. The study is conducted at the Institute of Oncology Ljubljana. According to the latest annual report, patient enrollment has been completed.

Interventions

Bioelectrical impedance analysis (BIA) is performed perioperatively to assess body fluid status and body composition. BIA parameters are evaluated for their potential usefulness in perioperative fluid assessment and prediction of postoperative complications in oncological patients undergoing colorectal surgery.

Sponsors

Institute of Oncology Ljubljana
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

All enrolled participants undergo perioperative bioelectrical impedance analysis (BIA) measurements in addition to standard clinical evaluation. BIA parameters are evaluated in relation to perioperative fluid status and postoperative complications.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patients aged 18 years or older. * Patients with oncological disease undergoing colorectal surgery at the Institute of Oncology Ljubljana. * Ability to undergo bioelectrical impedance analysis (BIA) measurements. * Signed written informed consent.

Exclusion criteria

* Patients younger than 18 years. * Patients unable to undergo BIA measurements. * Patients with conditions that, in the investigator's opinion, make participation in the study unsuitable. * Refusal to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Postoperative Complications Within 30 Days After Colorectal SurgeryUp to 30 days after colorectal surgery.Postoperative complications will be identified from routine clinical documentation after colorectal surgery. The unit of measure will be the percentage of participants with at least one postoperative complication within 30 days after colorectal surgery.

Secondary

MeasureTime frameDescription
Change From Baseline in Total Body Water Assessed by Bioelectrical Impedance AnalysisFrom preoperative baseline to postoperative assessment, up to 30 days after colorectal surgery.Total body water will be measured using bioelectrical impedance analysis before and after colorectal surgery. The unit of measure will be liters. The outcome will be reported as the change from preoperative baseline in total body water.
Change From Baseline in Extracellular Water Assessed by Bioelectrical Impedance AnalysisFrom preoperative baseline to postoperative assessment, up to 30 days after colorectal surgery.Extracellular water will be measured using bioelectrical impedance analysis before and after colorectal surgery. The unit of measure will be liters. The outcome will be reported as the change from preoperative baseline in extracellular water.
Change From Baseline in Intracellular Water Assessed by Bioelectrical Impedance AnalysisFrom preoperative baseline to postoperative assessment, up to 30 days after colorectal surgery.Intracellular water will be measured using bioelectrical impedance analysis before and after colorectal surgery. The unit of measure will be liters. The outcome will be reported as the change from preoperative baseline in intracellular water.
Change From Baseline in Extracellular Water to Total Body Water Ratio Assessed by Bioelectrical Impedance AnalysisFrom preoperative baseline to postoperative assessment, up to 30 days after colorectal surgery.The extracellular water to total body water ratio will be calculated from bioelectrical impedance analysis measurements obtained before and after colorectal surgery. The outcome will be reported as the change from preoperative baseline in the extracellular water to total body water ratio.
Change From Baseline in Fat-Free Mass Assessed by Bioelectrical Impedance AnalysisFrom preoperative baseline to postoperative assessment, up to 30 days after colorectal surgery.Fat-free mass will be measured using bioelectrical impedance analysis before and after colorectal surgery. The unit of measure will be kilograms. The outcome will be reported as the change from preoperative baseline in fat-free mass.

Countries

Slovenia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 11, 2026