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ZYNEX Cardiac Monitor in Patients Having Noncardiac Surgery

NCT05536258 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 20

Last updated 2025-07-31

No results posted yet for this study

Summary

The trial groups will be:

1. Routine fluid management. Clinicians will be blinded to RI monitoring and use clinical judgement to determine how much fluids should be given, and when. Clinical judgement will be according to their standard practice and may include interpretation of blood pressure, and heart rate.
2. RI-guided fluid administration. RI fluid guidance will be initiated before anesthesia induction and will maintain until end of anesthesia. Clinicians will titrate fluids with the goal of keeping RI above 90- always using good clinical judgement for individual patients which may include avoiding fluid when RI is \<90 or giving additional fluid when RI \>90. For RI scores below 90, 1 cc/kg actual body weight fluid bolus of any crystalloid solution (normal saline or Ringer's lactate) will be given; colloids and blood products can also be given if clinically indicated. The target will be maintained until end of anesthesia.

Anesthesia will be maintained for the entire surgical procedure per clinical routine. At the end of the surgical procedure, patients will be extubated and transferred to the post anesthesia care unit (PACU).

Conditions

  • Noncardiac Surgery

Interventions

OTHER

Fluid

The investigators will titrate fluid administration to maintain a RI \> 90 over at least 85% of the intraoperative period lasting from induction until the end of anesthesia. Specifically, the investigator will consider titration to have been successful if 85% of patients in the RI group sustain a RI \> 90 over at least 85% of the intraoperative period.

Sponsors & Collaborators

  • The Cleveland Clinic

    lead OTHER

Principal Investigators

  • Kurt Ruetzler, MD · The Cleveland Clinic

Eligibility

Min Age
21 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-03-09
Primary Completion
2024-05-29
Completion
2024-06-24

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05536258 on ClinicalTrials.gov