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Effects of Guiding Catheter on FFR and NHPR for the Assessment of Coronary Artery Stenoses (Disengage@Rest)

Effects of Guiding Catheter on Fractional Flow Reserve and Non-Hyperemic Pressure Ratios for the Assessment of Coronary Artery Stenoses - Disengage @Rest

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04975425
Acronym
Disengage@Rest
Enrollment
200
Registered
2021-07-23
Start date
2021-07-01
Completion date
2022-07-30
Last updated
2024-02-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease

Keywords

Fractional Flow Reserve, Resting Full-Cycle Ratio

Brief summary

The DISENGAGE@rest study is a prospective registry carried out at Federico II University of Naples with the aim to evaluate the influence of the guiding catheter engagement within the coronary ostium on both FFR and non-hyperaemic pressure ratios values (such as Pd/Pa and the Resting Full-cycle Ratio -RFR), as well as the corresponding clinical impact on decision-making strategies. Consecutive patients with at least one intermediate stenosis (40%-90% by visual estimation) in any of the 3 main coronary arteries will be included.

Interventions

DIAGNOSTIC_TESTFractional Flow Reserve

Comparison between FFR and NHPR before and after guiding catheter disengagement

Sponsors

Federico II University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \> 18 years; * Patients provides informed consent; * Documented coronary artery disease: * chronic coronary syndromes * acute coronary syndromes presenting with at least one stenosis with indication for invasive functional assessment.

Exclusion criteria

* Patients unable to provide informed consent; * Pregnant women; * Any contraindication to perform angiographic study or functional evaluation with pressure wire; * Patients with aorto-ostial stenosis * Target vessel diameter \< 2mm

Design outcomes

Primary

MeasureTime frameDescription
Differences between FFR before and after guiding catheter disengagement10 minutesEvaluate the influence of the guiding catheter engagement within the coronary ostium on FFR values.
1. Differences between NHPR before and after guiding catheter disengagement10 minutesEvaluate the influence of the guiding catheter engagement within the coronary ostium on NHPR values

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026