Clinical Case of IVUS-Guided Coronary Artery Stenting in a Patient with Chronic Renal Failure

Abstract

Introduction. An expanding number of indications for PCI in patients with coronary heart disease and severe concomitant pathology are accompanied by a growing number of patients with chronic renal failure. Contrast-induced nephropathy (CIN) is recognized as a severe complication, aggravating the course of the underlying disease, and, moreover, reducing the life expectancy of the patients. Modern intravascular imaging technologies are widely implemented in real clinical practice of endovascular surgery. In the context of increasing number of PCI performed in patients with severe concomitant pathology, the IVUS-guidance will improve the quality of stenting, and, importantly, lessen the risks of CIN due to the reduction in contrast volume. Materials and methods. The paper presents a clinical case of IVUSguided stenting of the right coronary artery without contrast agent in a patient with chronic kidney disease and the following diagnosis: “Coronary heart disease. Effort angina, class III (dyspnea as anginal equivalent). Balloon angioplasty and stenting of circumflex artery and LAD. Hyperlipidemia 2a. Atherosclerosis of the aorta, brachiocephalic and coronary arteries. Stage 3 hypertension. Controlled Hypertension. Level IV CVD risk. Type 2 diabetes mellitus. Target glycated hemoglobin is less than 7.5%. Grade 2 obesity, exogenous-constitutional. Renal microlithiasis. CKD stage 4 (GFR 29 ml/min/1.73m2). Cerebrovascular disease. Chronic cerebral ischemia.” Results and discussion. In the described clinical case, a complete myocardial revascularization was achieved using IVUS-guidance and minimal amount of contrast agent in a patient with severe CKD. The advantage of minimally invasive endovascular interventions in a complex category of patients, demonstrated by the case, implies expanded possibilities for providing high-tech care to patients with significant limitations in the use of contrast agents due to severe CKD with a high risk of CIN. Conclusion. Today, an increasing number of X-ray operating rooms in Russia are equipped with intravascular technologies, ensuring their wider use. The skills and knowledge in using IVUS imply rare application of contrast agents, thereby lessening the risk of CKD and, as a consequence, improving the prognosis of patients with reduced renal function and high risk of CKD.