Study Stopped
Problems due to retrospective data acquisition
Time for a Paradigm Shift: STEMI/NSTEMI to OMI/NOMI ?
DIFOCCULT-2
Time for a DIagnostic Paradigm Shift From ST-elevation/Non-ST-elevation to OCClUsion/Non-occLusion Myocardial infarcTion?
1 other identifier
observational
2,500
1 country
1
Brief Summary
The current ST-segment elevation (STEMI)/non-STEMI treatment paradigm misses nearly one fourth of acute coronary occlusions (ACO) that needs immediately reperfusion. Many of these cases can be recognized by subtle changes on ECG, but the current STEMI criteria do not include them. The investigators of this research believe a new occlusive/non-occlusive myocardial infarction (OMI/NOMI) approach will be superior to the established STEMI/non-STEMI paradigm in early detection of ACO, limiting infarct size, reducing re-hospitalizations and most important of all, reducing mortality.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Sep 2020
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2022
CompletedFirst Submitted
Initial submission to the registry
January 21, 2023
CompletedFirst Posted
Study publicly available on registry
January 30, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2024
CompletedAugust 27, 2024
August 1, 2024
2 years
January 21, 2023
August 25, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Mortality
Mortality
One year
Mortality in OMI (+) but STEMI (-) patients
Mortality in OMI (+) but STEMI (-) patients
One year
Secondary Outcomes (3)
ACO
At index hospitalization (<7 day)
Infarct size
At index hospitalization (<7 day)
Left ventricular function
At index hospitalization (<7 day)
Study Arms (2)
OMI/NOMI group
In this group, the patients will be managed according to OMI/NOMI paradigm. OMI patients, even without STEMI criteria, will be taken immediately to the cath lab.
STEMI/NSTEMI group
Standard care
Interventions
Coronary intervention will be done immediately in patients with OMI (even STEMI criteria are negative), instead of waiting for \<24h.
Eligibility Criteria
The adult patients who are admitted to the emergency department with a clinical picture compatible with acute coronary syndrome.
You may qualify if:
- Clinical picture compatible with acute coronary syndrome AND recognized as OMI/STEMI (according to the treating provider) or cardiac high-sensitive troponins levels are elevated
You may not qualify if:
- Unable to acquire ECG
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Marmara University Pendik Training and Research Hospital
Istanbul, Turkey (Türkiye)
Related Publications (5)
Aslanger EK, Yildirimturk O, Simsek B, Bozbeyoglu E, Simsek MA, Yucel Karabay C, Smith SW, Degertekin M. DIagnostic accuracy oF electrocardiogram for acute coronary OCClUsion resuLTing in myocardial infarction (DIFOCCULT Study). Int J Cardiol Heart Vasc. 2020 Jul 30;30:100603. doi: 10.1016/j.ijcha.2020.100603. eCollection 2020 Oct.
PMID: 32775606BACKGROUNDPendell Meyers H, Bracey A, Lee D, Lichtenheld A, Li WJ, Singer DD, Rollins Z, Kane JA, Dodd KW, Meyers KE, Shroff GR, Singer AJ, Smith SW. Accuracy of OMI ECG findings versus STEMI criteria for diagnosis of acute coronary occlusion myocardial infarction. Int J Cardiol Heart Vasc. 2021 Apr 12;33:100767. doi: 10.1016/j.ijcha.2021.100767. eCollection 2021 Apr.
PMID: 33912650BACKGROUNDMeyers HP, Bracey A, Lee D, Lichtenheld A, Li WJ, Singer DD, Kane JA, Dodd KW, Meyers KE, Thode HC, Shroff GR, Singer AJ, Smith SW. Comparison of the ST-Elevation Myocardial Infarction (STEMI) vs. NSTEMI and Occlusion MI (OMI) vs. NOMI Paradigms of Acute MI. J Emerg Med. 2021 Mar;60(3):273-284. doi: 10.1016/j.jemermed.2020.10.026. Epub 2020 Dec 9.
PMID: 33308915BACKGROUNDAslanger EK, Meyers PH, Smith SW. STEMI: A transitional fossil in MI classification? J Electrocardiol. 2021 Mar-Apr;65:163-169. doi: 10.1016/j.jelectrocard.2021.02.001. Epub 2021 Feb 13.
PMID: 33640636BACKGROUNDAslanger EK, Meyers HP, Smith SW. Recognizing electrocardiographically subtle occlusion myocardial infarction and differentiating it from mimics: Ten steps to or away from cath lab. Turk Kardiyol Dern Ars. 2021 Sep;49(6):488-500. doi: 10.5543/tkda.2021.21026.
PMID: 34523597BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Emre Aslanger
Marmara University
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Target Duration
- 1 Year
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
January 21, 2023
First Posted
January 30, 2023
Study Start
September 1, 2020
Primary Completion
September 1, 2022
Study Completion
August 1, 2024
Last Updated
August 27, 2024
Record last verified: 2024-08