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Analysis of Life-threatening ARrhythMias After Acute Coronary Syndrome (ALARM-ACS)

11. september 2026 opdateret af: Luuk Otterspoor, Catharina Ziekenhuis Eindhoven

Current Relevance of Malignant Cardiac Arrhythmia in Patients Admitted for Acute Coronary Syndrome

Patients admitted with an acute coronary syndrome (ACS) are at increased risk of malignant cardiac arrhythmias (MA), such as sustained ventricular tachycardia and ventricular fibrillation. Therefore, patients with ST-elevation myocardial infarction (STEMI) are continuously monitored for a minimum of 24 hours after onset symptoms. Longer monitoring is advised in patients at intermediate to high risk of cardiac arrhythmias, however this risk stratification is not evidence based. Hospitalization, particularly in STEMI patients, is advised for a minimum of 48-72 hours.

AMI care requires a substantial commitment of bed capacity and staff, resulting in high healthcare costs.

In patients who have undergone acute PCI (such as STEMI patients or NSTEMI patients with persistent symptoms), monitoring is primarily aimed at early recognition of MA and signs of persistent or recurrent ischaemia after the intervention.

In NSTEMI/UAP patients still awaiting invasive treatment, the emphasis lies on detecting increasing ischaemia in the as-yet untreated coronary vessel, as well as identifying arrhythmias that may arise as a result.

The true incidence of MA cannot be precisely established due to heterogeneity in the literature, and moreover varies between patients with ST-elevation myocardial infarction, non-ST-elevation myocardial infarction, and unstable angina pectoris, owing to differences in disease process and care pathway.

A better understanding of the current incidence and risk of MA in patients with ACS may contribute to optimizing the monitoring of this patient group, thereby enabling more efficient use of hospital beds and healthcare staff. This prospective quality registry therefore aims to establish the current incidence of MA in ACS patients and to identify potential predictors of MA, while also taking into account other acute complications such as asystole and pulseless electrical activity (PEA).

Studieoversigt

Status

Rekruttering

Betingelser

Detaljeret beskrivelse

Primary research question:

What is the incidence of malignant arrhythmias (MA, defined as sustained ventricular tachycardia/ventricular fibrillation) during admission in patients with acute coronary syndrome?

Secondary research questions:

What is the incidence of MA during admission in the subgroups:

ST-elevation myocardial infarction (STEMI) Non-ST-elevation myocardial infarction (NSTEMI) Unstable angina pectoris (UAP) What is the temporal relationship of MA occurrence during admission, and can a peak incidence be identified? What are clinical predictors of MA during admission in patients with acute coronary syndrome? How do polymorphic and monomorphic ventricular arrhythmias compare in terms of frequency of occurrence in patients admitted with acute coronary syndrome? What is in-hospital mortality in ACS patients with versus without MA? What is the incidence of asystole and pulseless electrical activity (PEA) during admission in patients with acute coronary syndrome?

Undersøgelsestype

Observationel

Tilmelding (Anslået)

2775

Kontakter og lokationer

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Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Holland
    • North Brabant
      • Eindhoven, North Brabant, Holland, 5623 EJ

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patients aged 18 years or older with acute coronary syndrome (ACS) (ST-elevation myocardial infarction, non-ST-elevation myocardial infarction, and unstable angina pectoris) or out-of-hospital cardiac arrest (OHCA) due to ACS, admitted to the emergency cardiac care unit, emergency department, coronary care unit (CCU), intensive care unit (ICU), or cardiology ward.

Beskrivelse

Inclusion criteria Patients aged 18 years or older with acute coronary syndrome (ST-elevation myocardial infarction, non-ST-elevation myocardial infarction, and unstable angina pectoris) or out-of-hospital cardiac arrest (OHCA) due to ACS, admitted to the emergency cardiac care unit, emergency department, coronary care unit (CCU), intensive care unit (ICU), or cardiology ward.

Exclusion criteria Patients who have indicated that their data may not be used for scientific research or for improving the quality of care.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Patients aged 18 years or older admitted with acute coronary syndrome
Patients aged 18 years or older with acute coronary syndrome (ACS) (ST-elevation myocardial infarction, non-ST-elevation myocardial infarction or unstable angina pectoris) or out-of-hospital cardiac arrest (OHCA) due to ACS, admitted to the emergency cardiac care unit, emergency department, coronary care unit (CCU), intensive care unit (ICU), or cardiology ward.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Occurrence of one (or more) malignant arrhythmia(s) (sustained VT or VF) during admission
Tidsramme: During admission

Occurrence of one (or more) malignant arrhythmia(s) (sustained VT or VF) during admission, defined as from the moment of physical hospital admission until discharge.

(For OHCA patients, the index arrhythmic event preceding hospital admission is not counted as a malignant arrhythmia event; only events occurring from the moment of physical hospital admission onward are included.)

(Events of sustained VT or VF occurring during admission of an ACS patient following cardiac surgery, such as CABG, will not be included.)
During admission

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Asystole/PEA
Tidsramme: During admission

Secondary outcome: Occurrence of one (or more) asystole and/or pulseless electrical activity (PEA) event(s) during admission, defined as from the moment of physical hospital admission until discharge.

(For OHCA patients, the index arrhythmic event preceding hospital admission is not counted as an asystole/PEA event; only events occurring from the moment of physical hospital admission onward are included.)

(Events of asystole or PEA occurring during admission of an ACS patient following cardiac surgery, such as CABG, will not be included.)
During admission

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Catharina Ziekenhuis Eindhoven

Samarbejdspartnere

St.Jans Gasthuis Weert
Anna Ziekenhuis Geldrop

Efterforskere

  • Ledende efterforsker: Luuk C Otterspoor, Dr. M.D., Catharina Ziekenhuis Eindhoven

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

14. juli 2026

Primær færdiggørelse (Anslået)

1. april 2029

Studieafslutning (Anslået)

1. april 2029

Datoer for studieregistrering

Først indsendt

11. september 2026

Først indsendt, der opfyldte QC-kriterier

11. september 2026

Først opslået (Faktiske)

17. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

11. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • nWMO-2026.062
  • project code 24PPS046 (Andet bevillings-/finansieringsnummer: National collaboration: Holland High Tech, Eindhoven University of Technology, Catharina Hospital Eindhoven, Philips)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Sensitive patient data, no permission to be shared externally

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