Mechanical complications of myocardial infarction are a group of postischemic events and include papillary muscle rupture resulting in ischemic mitral regurgitation, ventricular septal defect, left ventricle free wall rupture, pseudoaneurysm, and true aneurysm. Advances made in management strategies, such as the institution of 'Code STEMI' and percutaneous interventions, have lowered the incidence of these complications. However, their presentation is still associated with increased morbidity and mortality. Early diagnosis and appropriate management is crucial for facilitating better clinical outcomes.

中文翻译：

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对心肌梗死机械并发症的病理生理学和管理的最新见解。

心肌梗塞的机械并发症是一组缺血后事件，包括乳头肌破裂导致缺血性二尖瓣关闭不全、室间隔缺损、左心室游离壁破裂、假性动脉瘤和真性动脉瘤。在管理策略方面取得的进展，例如“代码 STEMI”和经皮干预的制度，降低了这些并发症的发生率。然而，它们的表现仍然与发病率和死亡率增加有关。早期诊断和适当的管理对于促进更好的临床结果至关重要。