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Benefit of Hypothermia in OHCA Complicating AMI

Benefit of Hypothermia in Out-of-hospital Cardiac Arrest Complicating Acute Myocardial Infarction

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06141252
Acronym
Hypothermia
Enrollment
2925
Registered
2023-11-21
Start date
2023-11-15
Completion date
2023-12-30
Last updated
2025-05-01

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

Conditions

Hypothermia Neonatal, Myocardial Infarction, Acute, Out-Of-Hospital Cardiac Arrest

Keywords

Out-Of-Hospital Cardiac Arrest, Acute myocardial infarction, Hypothermia

Brief summary

To determine the clinical effectiveness of hypothermia treatment in patients with out-of-hospital cardiac arrest complicating acute myocardial infarction.

Detailed description

Out-of-hospital cardiac arrest (OHCA) is a leading cause of mortality worldwide. Due to significant improvement in the management of patients with OHCA, an increasing number of initially resuscitated patients are being admitted to hospitals. Nevertheless, OHCA remains associated with a poor prognosis, with a survival rate of approximately 8.8% to hospital discharge. Moreover, international registry data have indicated that favorable neurological outcome at hospital discharge or 30 days after OHCA is only 2.8-18.2% across all registries. The majority of adult cardiac arrest cases are associated with obstructive coronary artery disease. Thus, current guideline recommended that immediate angiography and primary revascularization in all patients with resuscitated cardiac arrest and ST-segment elevation on electrocardiography, and also in patients with resuscitated cardiac arrest without ST-segment elevation, but with high probability of acute coronary occlusion. However, even after prompt restoration of blood flow, a substantial proportion of patients with myocardial infarction (MI) experience extensive necrosis. The application of hypothermia in patients with acute MI focuses on the reducing energy consumption at cardiac level, a factor consistently linked to diminished infarction size in animal study. However, in a recent meta-analysis of randomized trials comparing different strategies for therapeutic hypothermia adjunctive to percutaneous coronary intervention (PCI) versus standard of care in patients with acute MI, faille to demonstrate clear benefit. It is important to note, however, these randomized trials were underpowered and as a results, they were unable to draw firm conclusions regarding the impact of therapeutic hypothermia. Therefore, this study aimed to investigate the impact of therapeutic hypothermia on clinical outcomes in patients who underwent primary PCI for acute MI after OHCA.

Interventions

DEVICEHypothermia

Patients admitted with out-of-hospital cardiac arrest and treated with hypothermia

Sponsors

Yonsei University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The investigators aim to compare and evaluate the effects of therapeutic hypothermia versus standard care on clinical outcomes, such as survival rates and neurological function, in patients with out-of-hospital cardiac arrest complicating acute myocardial infarction.

Eligibility

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

Inclusion criteria

* Out-of-hospital cardiac arrest event

Exclusion criteria

* Arrest of non-cardiac origin * Age \< 18 years * Did not received primary PCI * Hypothermia before CAG * Obey mental status

Design outcomes

Primary

MeasureTime frameDescription
Death from any cause at hospital dischargeup to 30 daysDeath from any cause at hospital discharge

Secondary

MeasureTime frameDescription
Poor neurological outcomesat hospital dischargeup to 30 daysPoor neurological outcomes, which was defined as a Glasgow-Pittsburge Cerebral Performance Category (CPC) value at hospital discharge. The investigators determined the neurological outcome according to Pittsburgh CPC, which is a scale on 1 to 5. 1 is e.g. good cerebral performance: conscious, alert, able to work, might have mild neurological or physiological deficit contrast to 5 which is brain death.

Countries

South Korea

Outcome results

None listed

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