RecruitingNot Applicable

Respiratory Variation of Carotid Doppler Peak Velocity (CDPV) for Non-invasive Prediction of Fluid Responsiveness

Germany84 participantsStarted 2022-01-11

Plain-language summary

The purpose of this study is to assess respiratory variation of carotid doppler peak velocity (∆CDPV) for prediction of fluid responsiveness during major abdominal surgery.

Who can participate

Age range

18 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Age 18-80 years * written informed consent * scheduled major abdominal surgery Exclusion Criteria: * Age \<18 or \>80 years * pregnancy * SIRS or sepsis * any kind of cardiac arrhythmia * known valve disease * known heart failure * any kind of known carotid stenosis * carotid doppler peak velocity \>182 cm/s before baseline measurement (expected stenosis) * missing indication for invasive arterial blood pressure monitoring (IBP) not related to the study * peripheral artery disease (PAD) * BMI \> 35 kg/m2 * intraabdominal hypertension * ASA-PSC of 4 * severe lung disease (e.g. COPD grade 3, fibrosis) * esophageal disease of any kind * participation in another clinical study

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in stroke volume following a fluid bolus.

Timeframe: Immediately before and 1 minute after completion of each fluid bolus.

Trial details

NCT IDNCT05185141

SponsorJohannes Gutenberg University Mainz

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2026-07

Contact for this trial

Johannes M Wirkus, M.D.

+49 6131 17- 7175 johannes.wirkus@unimedizin-mainz.de

View on ClinicalTrials.gov More Hemodynamic Instability trials

Who can participate

Age range

18 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.