Clinical trial Recruiting at 1 site Observational Ages 18 and up

Heart performance during steep head-down positioning for robotic pelvic surgery

Official title: Effects of Steep Trendelenburg and Pneumoperitoneum on Cardiac Performance During Robotic-assisted Surgery in Patients With Normal and Low Ejection Fraction.

Run by Karlstad Central Hospital · NCT06336746 · Data updated 2026-11-12

This test looks at how heart function changes during steep head-down tilt in people having robotic pelvic surgery, including those with and without systolic heart failure.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment80 (estimated)
SponsorKarlstad Central Hospital
Academic / other
Locations1 site (Karlstad, Värmland County)
StatusRecruiting
StartedNovember 21, 2024
Main results expectedDecember 30, 2026
Study endsDecember 31, 2026
Registry record updatedFebruary 12, 2026
Trial IDNCT06336746 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults scheduled for robotic pelvic surgery requiring steep Trendelenburg positioning who can give written informed consent, including those with known systolic heart failure and those with normal heart function.

Probably not a fit

People under 18, those unable to give written consent, patients not undergoing robotic Trendelenburg procedures, or patients with only diastolic dysfunction are unlikely to benefit from the results directly.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Consecutive adults scheduled for robotic pelvic procedures with steep Trendelenburg positioning will have a preoperative echocardiogram to classify systolic function and then be monitored perioperatively. Hemodynamic monitoring uses an esophageal Doppler while regional cerebral saturation is tracked with optical spectrophotometry during insufflation and head-down tilt. Patients with normal systolic function will be compared to patients with known systolic heart failure to describe circulatory responses. This is an observational single-center protocol at Karlstad Central Hospital without interventional treatment changes driven by the study.

Why it matters

Potential benefit: If successful, the findings could help anesthesiologists better anticipate and manage heart stress during robotic surgery and reduce perioperative cardiac complications.

How similar studies have gone: Very few prior studies exist and they were limited to healthy ASA 1–2 patients, so application in patients with systolic heart failure is largely untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1\. Consecutive Patients Scheduled for Robotic Surgery with Trendelenburg positioning.

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Exclusion Criteria:

1. Age \<18;
2. Dementia,
3. Not able to give written consent -

Where it's running

  • Dpt of Anesthesiology&Intensive Care; Central Hospital of Karlstad
    Karlstad, Värmland County, Sweden
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.