Search

Background: There may be severe difficulties in determining the severity of LMCA (left main coronary artery) lesions. The use of intravascular ultrasound (IVUS) facilitates decisions about lesion severity in these patients. The aim of this study was to investigate the relationship between the UHR (uric acid to HDL-C ratio) and lesion severity in patients who underwent LMCA IVUS., Methods: This study included 205 patients with ICS (intermediate coronary stenosis) in the LMCA who underwent IVUS. In the IVUS measurements of these patients, the plaque burden (PB) and the minimal lumen area (MLA) showing lesion severity were measured., Results: The patients were separated into two groups according to plaque burden (< 65% and ≥ 65%). The UHR was significantly greater in the high plaque burden group (479.5 vs. 428.6, P = 0.001). When the patients were separated into two groups according to the MLA (< 6mm 2 and ≥ 6mm 2 ), the UHR was determined to be significantly greater in the group with low MLA (476.8 vs. 414.9, P < 0.001). In the ROC analysis performed according to the MLA and plaque burden values, the UHR cutoff value of 450 was found to have similar sensitivity and the same specificity for both parameters., Conclusions: The results of this study suggested that there is a relationship between UHR and MLA < 6mm 2 and plaque burden ≥ 65%, which are independently evaluated as critical in IVUS, and this could predict anatomically significant lesions in patients with a moderate degree of LMCA stricture., (© 2024. The Author(s).)

Objectives: Various vascular grafts are used in coronary artery bypass graft (CABG) surgeries, however, the most commonly used one is the saphenous vein graft (SVG). Various studies conducted on this topic have found a relationship between uric acid to HDL-C (UHR) and cardiovascular diseases. In this current study, we aimed to investigate the predictive importance of UHR value in predicting long-term SVG disease in patients who underwent CABG surgery. Methods: Patients who had a history of CABG surgery at least one year prior, had stable angina pectoris, and underwent coronary angiography between January 01, 2016 and January 01, 2020, were included in the study retrospectively. Patients with open saphenous veins were defined as Group 1, and patients who had 50% or more stenosis in at least one SVG after coronary angiography, were defined as Group 2. Results: The median age of the 204 patients included in Group 1 and 292 patients in Group 2 were 65 (38-77) years and 66 (45-79) years, respectively (p = 0.251). The two groups were similar in terms of gender, hypertension, chronic obstructive pulmonary disease rates, history of cerebrovascular events, ejection fraction, body mass index, and current medical treatments. In univariate analysis, SVG disease was found to significantly correlate with diabeter mellitus (odds ratio [OR]: 1.644, 95% confidence interval [CI]: 1.190-1.985, p = 0.008), current smoking (OR: 0.875, 95% CI: 0.669-0.940, p = 0.030), number of patients with target artery diameter < 1.5 mm (OR: 1.945, 95% CI: 1.221-2.398, p < 0.001), age of SVG (OR: 2.960, 95% CI: 1.980-4.168, p < 0.001), uric acid (OR: 1.241, 95% CI: 1.078-1.592, p = 0.004), triglyceride (OR: 0.780, 95% CI: 0.569-0.935, p = 0.044) and UHR (OR: 1.894, 95% CI: 1.384-2.896, p < 0.001). Conclusions: In this study, we showed that we can predict saphenous vein graft occlusion with serum UHR value. [ABSTRACT FROM AUTHOR]