CompletedNot Applicable

Preoperative Measurement of Heart Rate Variability as a Predictor of Postoperative Outcome

Czechia65 participantsStarted 2015-02

Plain-language summary

The purpose of the study is to confirm the hypothesis that a dysfunction of the autonomic nervous system could complicate the postoperative course in the patient undergoing surgery. Measurement of heart rate variability (HRV) is a non-invasive method for evaluation of the autonomic nervous system.

Who can participate

Age range

21 Years – 90 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: * 21 years of age and above * anticipated duration of surgery more than 120 minutes * estimated blood loss exceeding more than 15% of blood volume * American Society of Anesthesiology (ASA) classification 2 or 3 Exclusion Criteria: * pregnant or lactating women * age below 21 years of age * emergency surgery * American Society of Anesthesiology (ASA) classification 1 * sepsis and septic shock * severe cardiac arrhythmias

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

Pre-defined postoperative complications for up to 28 days after surgery

Timeframe: 24 months

Trial details

NCT IDNCT02375412

SponsorUniversity Hospital Ostrava

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2016-12

View on ClinicalTrials.gov More Major Abdominal Surgery trials

Who can participate

Age range

21 Years – 90 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.