eISSN: 1897-4295
ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
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vol. 18
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Perfect optimization during coronary stent implantation – is it always beneficial? Staged primary percutaneous coronary angioplasty in a young patient with acute myocardial infarction

Michał Chyrchel
Natalia Maruszak
Weronika Pilch
Artur Pawlik
Stanisław Bartuś

2nd Department of Cardiology, Jagiellonian University Medical College, University Hospital, Krakow, Poland
Adv Interv Cardiol 2022; 18, 3 (69): 303–305
Online publish date: 2022/11/02
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A 33-year old man was admitted to the department of cardiology with a diagnosis of ST-segment elevation myocardial infarction (MI) of the anterior wall after the pre-hospital cardiac arrest. On admission, the patient was conscious, hemodynamically stable with persistent chest pain. The medical history of the family for premature cardiac disease was negative. Prior to admission, the patient had been diagnosed with hypertension and dyslipidaemia. The echocardiography showed left ventricular ejection fraction mildly reduced to 40%, driven by akinesia of the apex and adjacent segments. Urgent coronary angiography revealed an occlusion in the middle segment of the left anterior descending artery (LAD) (Figure 1 A). Due to the presence of a large thrombus, aspiration thrombectomy was performed following predilatation with a semi-compliant balloon of 2.5 × 20 mm to 12 atm (Figure 1 B). Consequently, three cardiac arrests occurred in the mechanism of ventricular fibrillation (VF) successfully treated with defibrillation. In spite of several thrombectomy passages, the thrombotic mass remained large and blood flow was impeded. The operator decided to administer a GP IIb/IIIa inhibitor (abciximab) and to stabilize the patient with implantation of a suboptimally sized drug-eluting stent, Xience Pro (Abbott Laboratories, IL, USA), of 3.5 × 28 mm to 16 atm (Figure 1 C). There were no further episodes of VF and the patient remained haemodynamically stable. Further pharmacological treatment included dual antiplatelet therapy (ASA plus ticagrelor), and continuous abciximab infusion for 12 h followed by low molecular weight heparin in a therapeutic dose. After 3 days, follow-up coronarography with intravascular ultrasound (IVUS) revealed a significantly malapposed stent with a good flow in the LAD (Figure 1 D). The IVUS-guided postdilatation with non-compliant balloons of 4.0 × 15 mm and 4.5 × 15 mm to 20 atm provided good stent apposition (Figures 1 E, F). The further hospitalization was uneventful. In the 3-year follow-up, the patient has been asymptomatic and his left ejection fraction has returned to normal.
Percutaneous coronary interventions (PCI) in acute settings differ significantly from planned procedures. During primary PCI, any instrumentation in the vessel with a high thrombus burden increases the risk of distal embolization (DE), worsening the patient’s prognosis [1]. Thrombectomy was introduced to mitigate myocardial damage caused by DE but did not...

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