Clinical trial Recruiting at 1 site Observational Ages 18 and up

Heart rate variability as a marker for complications after colorectal surgery

Official title: Variability of Heart Rate as a Marker of Complication of Colorectal Surgery

Run by Centre Hospitalier Universitaire de Nīmes · NCT04367987 · Data updated 2026-11-12

This study tests whether heart rate variability can signal potential complications after colorectal surgery in adults with cancer or inflammatory bowel disease.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment117 (estimated)
SponsorCentre Hospitalier Universitaire de Nīmes
Academic / other
Locations1 site (Nîmes)
StatusRecruiting
StartedJune 17, 2020
Main results expectedJune 2027
Study endsJune 2027
Registry record updatedJune 16, 2026
Trial IDNCT04367987 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults undergoing scheduled colorectal resection for cancer, diverticulitis, or chronic inflammatory bowel disease, with ASA 1–2 and who have consented to participate and hold health insurance membership.

Probably not a fit

Patients with certain medications, specific heart or nerve problems, or those in interventional or guardianship scenarios may not benefit from this study.

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

What this trial studies

This observational study examines how postoperative changes in heart rate variability relate to complications following colorectal surgery. It includes adults with scheduled colorectal resections who are healthy enough for surgery and have consented to participate. Heart rate variability is recorded to explore its association with adverse postoperative events. The study is conducted at CHU de Nîmes with inclusion and exclusion criteria to select appropriate surgical patients without confounding conditions or medications.

Why it matters

Potential benefit: If successful, heart rate variability could help identify patients at higher risk of complications after colorectal surgery.

How similar studies have gone: Previous research has investigated heart rate variability as a marker in surgical and critical care settings, suggesting potential relevance for predicting complications, though evidence specificity to colorectal surgery varies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients operated for a scheduled colorectal resection due to cancer, diverticulitis, or Chronic Inflammatory Bowel Disease,
* American Society of Anesthesiologists score 1-2
* The patient must have given their free and informed consent and signed the consent form
* The patient must be a member or beneficiary of a health insurance plan

Exclusion Criteria:

* Patient taking antidepressants, antipsychotics, antihypertensive beta blocker type, anti-arythmic or oral contraception
* Uncontrolled diabetes or associated with a neuropathy
* Arrhythmias and conduction disturbances, , coronaropathy and heart failure, kidney failure
* Neuropathies
* Pacemaker or defibrillator
* The subject is participating in another interventional study, or is in a period of exclusion determined by a previous study
* The subject refuses to sign the consent
* It is impossible to give the subject informed information
* The patient is under safeguard of justice or state guardianship

Where it's running

  • CHU de Nimes
    Nîmes, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.