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Completed

NCT Number: NCT06293391

The Effect of Patient Position Changes on Advanced Cardiac Indices in Cancer Surgery

Esophageal Doppler Monitoring (Deltex CardioQ Esophageal Doppler Monitor, ODM) is used to manage patients' fluid therapy by non-invasively measuring continuous cardiac output with an esophageal probe. The aim of this study was to compare the effects of patient position changes on cardiac indices and vital signs in patients who underwent major abdominal cancer surgery with laparoscopic and open surgery using ODM.

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Key information

Conditions

Abdominal Cancer Blood Pressure Cardiac Indices

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Dr.Abdurrahman Yurtaslan Ankara Oncology Train and Research Hospital

Ankara, 06200, Turkey (Türkiye)

About this study

Patients who underwent major abdominal cancer surgery using ODM in the operating room of our hospital between November 2021 and November 2022 were identified from the Anesthesiology Clinic records and examined according to whether they were operated with open or closed (laparoscopic) methods. Demographic data, vital signs, amount of bleeding, type and amount of fluid administered, and the results of cardiac index measurements performed with the ODM device in the supine and trendelenburg positions (45 degrees) were analyzed. Parameters recorded with the ODM device; CO: Cardiac output, FTc: Flow time corrected, PV: Peak velocity, SD: Stroke distance.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Elective operation
  • ASA 1-4

Exclusion criteria

  • Heart failure
  • Valvular heart disease,
  • Patients with symptomatic rhythm disturbances
  • ODM placement contraindicated (coagulopathy, oesophageal varices, known aortic aneurysm)

Treatment and study plan

cardiac indices in supine and trendelenburg position

Procedure

Cardiac indices in supine and trendelenburg position in patients undergoing open or laparoscopic major cancer surgery

Primary outcomes

  1. Cardiac Output

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  2. Stroke Volume

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  3. Flow time corrected

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  4. Peak Velocity

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  5. Stroke Distance

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  6. Mean arterial pressure

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

  7. Pulse

    Time frame: Immediately after induction of anaesthesia and at any stable time during the case

    Measurement of cardiac output with the oesophageal doppler device immediately after induction of anaesthesia and in the middle of the case in both supine and trendelenburg position of the patient to see whether there is a significant difference in positional change.

Sponsors and collaborators

Lead sponsor

Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital

Other

Registry information

Official study title

The Impact of Patient Position Changes on Advanced Hemodynamic Indices in Laparoscopic and Open Major Abdominal Cancer Surgeries

Important dates

Study start
2023
Primary completion
2023
Study completion
2024
First posted
Mar 5, 2024
Registry last updated
Apr 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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