RESUMEN
We describe an extremely rare case of a 37-year-old female patient who presented with exertional angina and was diagnosed with a unique coronary anomaly with an anomalous right coronary artery with origin in the left anterior descending artery and a fistula between this anomalous coronary artery and the pulmonary artery. Learning objectives: Most patients with coronary anomalies are asymptomatic but some may have angina caused by a coronary steal phenomenon, myocardial infarction, or even sudden death depending on the circuit and characteristics of the anomaly.The combination of multiple coronary anomalies is extremely rare.Despite being a rare diagnosis, coronary anomalies should always be considered as a cause of myocardial ischemia, especially in young patients with low probability for coronary obstructive disease.
RESUMEN
Iatrogenic left main coronary artery and aortic root dissection is a rare but life-threatening complication of percutaneous coronary intervention. This is a case where this complication was induced by catheter manipulation. Prompt percutaneous closure of the dissection point of entry was effective in managing this complication. (Level of Difficulty: Advanced.).
RESUMEN
ST-segment elevation in aVR has traditionally been used for electrocardiographic identification of left main coronary artery (LM) myocardial infarction. We present two ST-segment elevation myocardial infarction (STEMI) cases with acute total occlusion of the LM without aVR ST-segment elevation. This report reviews the different electrocardiographic discriminators suggestive of unprotected LM STEMI. (Level of Difficulty: Intermediate.).
RESUMEN
Despite the fact that door-to-balloon times have been greatly reduced, the rates of death and the incidence of heart failure in patients with ST-segment elevation myocardial infarction (MI) have plateaued. There is still an unmet need to further reduce MI size in the reperfusion era. Most adjunctive therapies to enhance myocardial salvage have failed, but some have shown promise. Currently, the only adjunctive therapy in a pivotal trial that has demonstrated reductions in infarct size is localized delivery of supersaturated oxygen (SSO2) therapy. This review provides background on prior infarct size reduction efforts. The authors describe the preclinical data that shows the effectiveness of SSO2 in reducing MI size, improving regional myocardial blood flow and cardiac function, and reducing adverse left ventricular remodeling-presumably by reducing patchy areas of residual ischemia within the reperfused risk zone. Potential mechanisms by which SSO2 is beneficial are described, including the delivery of high levels of dissolved oxygen through plasma to ischemic, but viable, vascular and myocardial cells, thus allowing their survival and function. The authors then describe the SSO2 clinical trials, demonstrating that in patients with anterior ST-segment elevation MI, SSO2 therapy safely and effectively reduces infarct size, improves cardiac function, and reduces adverse left ventricular remodeling.
RESUMEN
Coronary artery aneurysm (CAA) after drug-eluting stent implantation is rare, with a reported incidence of 0.3% to 6.0%. Most of these aneurysms are asymptomatic. Hemoptysis as a presentation of CAA is very rare. The patient in our case had CAA after zotarolimus-eluting stent implantation and presented with hemoptysis resulting from a leaking coronary-bronchial fistula. (Level of Difficulty: Intermediate.).
RESUMEN
We report a case of coronary perforation during high-risk percutaneous coronary intervention with Impella (Abiomed, Danvers, Massachusetts) support that resulted in cessation of pulsatile arterial flow. Maintenance of systemic perfusion due to antecedent placement of Impella 2.5 allowed for successful treatment with pericardiocentesis and covered stent placement, early discharge, and complication-free follow-up. (Level of Difficulty: Intermediate.).
RESUMEN
We performed orbital atherectomy in the left circumflex artery through a stent that jailed the circumflex artery ostium. The orbital atherectomy catheter was entrapped within the stent and the stent was avulsed during catheter withdrawal. We should consider this potential complication when performing orbital atherectomy in a jailed side branch. (Level of Difficulty: Advanced.).
RESUMEN
Optical coherence tomography (OCT) can guide percutaneous coronary interventions to optimize results, thus minimizing the risk of stent thrombosis. We present the case of a cancer patient, paroxysmal atrial fibrillation, and unstable angina who underwent OCT-guided complex percutaneous coronary intervention and who required early discontinuation of antiplatelet therapy because of major bleeding. (Level of Difficulty: Beginner.).
RESUMEN
We describe a complex percutaneous coronary intervention using rotational atherectomy (Rotablator, Boston Scientific, Marlborough, Massachusetts) and mechanical circulatory support (Impella, Abiomed, Danvers, Massachusetts) in a patient with multiple comorbidities scheduled to undergo a left main coronary percutaneous coronary intervention using a 2-stent technique based on angiography. However, intracoronary optical coherence tomography changed our strategy to a successful single-stent procedure. (Level of Difficulty: Advanced.).