Shujie Yan MD, PhD , Fuqing Jiang MD , Yanhua Sun MD , Yang Wang PhD , Jianxi Ye MD, PhD , Jianchao Li MD , Hui Yang MD , Shifu Wang MD , Yi Song MD , Chengbin Zhou MD, PhD , Bingyang Ji MD, PhD
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引用次数: 0
Abstract
Background
The mortality and morbidity of emergency total aortic arch replacement (TAAR) for acute type A aortic dissection (ATAAD) is high, which is partly due to the excessively activated systemic inflammatory response. Methylprednisolone, an anti-inflammatory agent, might suppress the systemic inflammatory response and lead to improved outcomes. However, the protective effects of methylprednisolone on TAAR for ATAAD were not clarified. The usage and dosage varied in different centers across the world.
Methods and results
The Medal trial is a prospective, multicenter, randomized, double-blind, placebo-controlled, parallel-group trial to evaluate whether 500 mg methylprednisolone IV before cardiopulmonary bypass could reduce the incidence of postoperative major organ injury, compared to placebo. Adult patients with the diagnosis with ATAAD, awaiting emergency total aortic arch replacement with hypothermic circulatory arrest and selective cerebral perfusion will be included in the trial. A total of 340 eligible subjects from 9 large cardiovascular centers will be randomized in a 1:1 ratio to receive 500 mg methylprednislone or placebo before cardiopulmonary bypass. The primary outcome is postoperative major adverse outcome [defined as all-cause death or postoperative neurological deficit or KDIGO II -III acute kidney injury or respiratory syndrome (tracheal intubation> 72 hours, tracheostomy or re-intubation) until postoperative day 30 or patient discharge]. The study has received approval from the local Ethics Committees of the 9 participating centers, and enrolled its first subject in June 24, 2022. As of September 5, 2024, 323 subjects have been enrolled. Results of the Medal trial will be published once data collection and analysis have been completed.
Conclusions
The Medal trial will determine the effectiveness of 500 mg methylprednisolone on the outcomes of patients with ATAAD undergoing TAAR.
期刊介绍:
The American Heart Journal will consider for publication suitable articles on topics pertaining to the broad discipline of cardiovascular disease. Our goal is to provide the reader primary investigation, scholarly review, and opinion concerning the practice of cardiovascular medicine. We especially encourage submission of 3 types of reports that are not frequently seen in cardiovascular journals: negative clinical studies, reports on study designs, and studies involving the organization of medical care. The Journal does not accept individual case reports or original articles involving bench laboratory or animal research.