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Not yet recruitingNCT07138638Updated Aug 24, 2025

High-Frequency QRS for Predicting Microvascular Dysfunction and Adverse Events After PCI in Acute Myocardial Infarction

An observational study in AMI, sponsored by The Affiliated Hospital of Xuzhou Medical University. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-08-24.

Sponsored by The Affiliated Hospital of Xuzhou Medical University · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,112
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This observational study aimed to investigate the prognostic value of high-frequency QRS (HF-QRS) in patients with acute myocardial infarction (AMI) after percutaneous coronary intervention (PCI), as well as its potential role in diagnosing microvascular dysfunction. The main question it aims to answer is:

  1. Whether HF-QRS could serve as an effective tool for early identification of high-risk AMI patients and prognosis prediction;
  2. Whether HF-QRS provides auxiliary diagnostic value for post-AMI microvascular dysfunction.

Participants underwent HF-QRS assessment and were prospectively followed for 1 year to record the incidence of major adverse cardiovascular events (MACE).

02

Conditions studied

  • AMI

Keywords

  • Acute Myocardial Infarction
  • High-Frequency QRS
  • prediction model
  • Microvascular Dysfunction
03

In context

Lead sponsor

The Affiliated Hospital of Xuzhou Medical University is the lead sponsor of 66 studies on the registry; 31 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

patients with acute myocardial infarction following percutaneous coronary intervention

Inclusion criteria

  • Aged 18 to 75 years (inclusive)

Diagnosed with acute myocardial infarction (AMI, including STEMI and NSTEMI) and underwent successful emergency PCI

Voluntarily participated and provided written informed consent

Exclusion criteria

Exclusion Criteria:

  • History of prior myocardial infarction or chronic heart failure

QRS duration >120 ms (including paced rhythm, WPW syndrome, bundle branch block, or left ventricular hypertrophy with repolarization abnormalities)

Structural heart disease (congenital heart disease, cardiomyopathy, aortic dissection, etc.)

Persistent atrial fibrillation or malignant arrhythmias

History of cerebral hemorrhage or ischemic stroke within 1 month

Prolonged cardiopulmonary resuscitation or requiring advanced life support (IABP/ECMO, etc.)

Scheduled for imminent surgery with anticipated inability to complete HF-QRS assessment

Other life-threatening conditions including: Severe hepatic or renal dysfunction;Uncontrolled systemic diseases;Hematologic disorders;Active infections;Malignancy with life expectancy \<1 year Other investigator-determined exclusionary conditions:Pregnancy;Concurrent participation in other clinical trials

Refusal to participate in the clinical study

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,112 participants (estimated)
Target follow-up
1 Year
Patient registry
Yes

Interventions

  • DeviceHigh-Frequency QRS

    All enrolled patients underwent HF-QRS assessment, with subsequent recording of MACE to evaluate the predictive value of HF-QRS parameters for clinical outcomes

06

What researchers measure

Primary outcomes

  1. To evaluate the predictive value of high-frequency QRS (HF-QRS) parameters for major adverse cardiovascular events (MACE) within 1 year after PCI in AMI patients and to construct a prognostic risk prediction model.

    Time frame: 12 months

Secondary outcomes

  1. To evaluate the adjunctive diagnostic value of high-frequency QRS parameters for microvascular dysfunction in ACS patients following percutaneous coronary intervention

    Time frame: 12 months

07

Study locations

1 site
  • The Affiliated Hospital of Xuzhou Medical University
    Xuzhou, Jiangsu 221000, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07138638
Lead sponsor
The Affiliated Hospital of Xuzhou Medical University
Responsible party
Sponsor
First posted
Aug 24, 2025
Start date
Aug 2025 (estimated)
Primary completion
Sep 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Aug 24, 2025

Study contacts

Yuan Lu, Ph.D
Contact
405983931@qq.com
13952110901
Yong Huo, Ph.D
study chair · Department of Cardiology, Peking University First Hospital, Beijing, China
Yuan Lu, Ph.D
study director · The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

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