Abstract
Zero contrast percutaneous coronary intervention (PCI) reduces contrast induced acute kidney injury (CI-AKI), and it improves the outcome of chronic kidney disease (CKD) patients undergoing PCI.We sought to assess the safety and short-term outcomes of 'absolute' zero-contrast PCI under intravascular ultrasound (IVUS) guidance in CKD patients.Data from all consecutive CKD patients who were included for absolute zero contrast PCI during the period of June 2020 to March 2021 were included in this analysis. Clinical characteristics, angiographic, IVUS and procedural data, and follow-up data were analyzed.Totally 42 patients (66 vessels) with the mean age of 69.04 ± 11.9 years, were included for absolute zero-contrast PCI. The mean serum creatinine and estimated glomerular filtration rate (eGFR) were 2.67 ± 1.46 mgs% and 30.67 ± 12.26 ml/min/1.73 m2 respectively. The most common presentation was acute coronary syndrome (ACS) and the mean left ventricular ejection fraction (LVEF) and SYNTAX score were 43.7 ± 11.9% and 27.7 ± 14.1 respectively. Complex PCI including 14 (21.2%) left main coronary artery (LMCA) PCI (seven LMCA bifurcation PCI) and three chronic total occlusion (CTO) PCI were also done. Technical success was 92.4% without any major complications. Two patients died of non cardiac causes on follow up (3-12 months), and all the remaining were symptom free.IVUS guided 'absolute' zero-contrast PCI is feasible and safe CKD patients. Even in complex lesion morphologies, the procedure can be completed without any contrast and complications.
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