ArticleJACC. Case reports2026
Persistent Shock After Successful PCI Due to CPR-Related Internal Mammary Artery Hemorrhage.
Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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7 authors.
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Abstract
backgroundShock is a common complication of acute myocardial infarction and cardiac arrest. Internal mammary artery (IMA) injury is a rare cause of post-cardiopulmonary resuscitation (CPR) hemorrhagic shock. CASE SUMMARY: An 80-year-old woman presenting with inferior ST-segment elevation myocardial infarction underwent percutaneous coronary intervention to the left circumflex artery with intra-aortic balloon pump support after cardiac arrest treated with mechanical CPR. Persistent hypotension prompted computed tomography angiography, revealing a mediastinal hematoma with active right IMA extravasation. Urgent embolization resulted in hemodynamic stabilization and clinical recovery. DISCUSSION: This case illustrates the diagnostic challenge of persistent shock after coronary revascularization when hemodynamic instability is disproportionate to the cardiogenic component and highlights CPR-related IMA injury as a rare but life-threatening extracardiac cause. TAKE-HOME MESSAGE: Persistent hypotension after ST-segment elevation myocardial infarction revascularization should prompt evaluation for extracardiac causes of shock, including CPR-related IMA injury, a rare complication that is amenable to prompt embolization.
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