No Reflow Phenomenon Incidence and Predictors

NCT ID: NCT04017169

Last Updated: 2019-07-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

176 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-10-29

Study Completion Date

2017-09-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Background No reflow phenomenon is described in up to 65% of patients undergoing primary percutaneous coronary intervention for ST elevation myocardial infarction (STEMI). It is known to be associated with worse outcomes but predictors of no reflow are not clearly described.

Objectives A single centre case-control observational study of patients presenting with acute myocardial infarction appropriate for PPCI comparing baseline clinical, biochemical and angiographic characteristics between patients with no reflow phenomenon and those without. Aiming to establish incidence for the UK population.

Secondary outcomes will be to gain further insight into those presenting with STEMI for PPCI and develop a risk model to guide management and clinical outcomes of patients to 30days.

Methods This study will prospectively recruit all consecutive patients attending a single centre for primary percutaneous coronary intervention for STEMI. Angiographic assessment of the recanalised epicardial vessel will be used to diagnose no reflow (reduced TIMI flow or blush grade). Baseline demographic, angiographic and biochemical characteristics and outcomes at 30days for reflow and no reflow cohorts will be statistically assessed and compared with logistic regression.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

No Reflow Phenomenon STEMI

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

No reflow phenomenon

Those that during procedure experience no reflow phenomenon

To define no reflow requires:

• Angiographic evidence of reopening of occluded coronary artery and successful stent placement with no evidence of flow-limiting residual stenosis (\<50%), dissection, vessel spasm, or thrombus burden

and

* Angiographic documentation of a TIMI flow grade ≤II, or
* A TIMI flow grade III with a myocardial perfusion grade 0 or I, at least 10 min after the end of PCI procedure.

No intervention as observational study

Intervention Type OTHER

No NRP

Normal angiographic coronary flow/blush post patent culprit vessel.

No intervention as observational study

Intervention Type OTHER

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

No intervention as observational study

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age ≥ 18 years
* Presenting with ST elevation myocardial infarction
* Appropriate for Primary Percutaneous Coronary Intervention

Exclusion Criteria

* Primary Percutaneous Coronary Intervention not performed eg due to non- flow- limiting coronary artery disease
* Unsuccessful PCI
* Thrombolysis
* Patients who do not survive the procedure to leave the catheterisation laboratory
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Hull University Teaching Hospitals NHS Trust

OTHER_GOV

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Jennifer A Rossington, BSc MBChB

Role: PRINCIPAL_INVESTIGATOR

Hull University Teaching Hospitals NHS Trust

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Castle Hill Hospital (Hull and east Yorkshire Hospitals NHS Trust)

Cottingham, East Yorkshire, United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United Kingdom

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

NORM PPCI

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

FINE75+: 5 Year Follow up
NCT02910687 COMPLETED