Regurgitation of the pulmonary, mitral, tricuspid and aortic valves have been observed frequently in chronic renal failure (CRF) and dialysis patients. Two dimensional, M mode and doppler echocardiography were performed on 35 CRF patients and 37 end stage renal failure (ESRD) patients on maintenance haemodialysis. Though structurally normal, valvular dysfunction was noted in 50 per cent of the patients with renal failure. Mitral regurgitation was the commonest abnormality, occurring in 36.1 per cent of the patients. Calcification of the valve was observed in only 5.6 and 16.7 per cent of CRF and dialysis patients respectively. Multiple regression analysis underscored the large contribution of diabetic status in the development of valvular dysfunction. Though end systolic volume was higher in patients with valvular abnormalities, the ejection fraction was well preserved. However, follow up studies are required to assess the significance of the functional valvular regurgitation on the cardiac function of the patients.
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Int J Mol Sci
January 2025
Research Direction, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Mexico City 14080, Mexico.
Deregulation of micro-RNAs (miRNAs) may contribute to mechanisms of injury in the bicuspid aortic valve (BAV). Our objective was to investigate the expression of miRNAs in aortic tissue from patients who underwent aortic valve replacement for aortic stenosis and its relationship with aortic dilatation. The study included 78 patients, 40 with bicuspid aortic valve (BAV) and 38 with tricuspid aortic valve (TAV).
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September 2024
Hospital Dr. Hernán Henríquez Aravena, Universidad de la Frontera, Temuco, Chile.
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School of Cardiovascular Medicine & Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom.
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View Article and Find Full Text PDFJ Cardiovasc Med (Hagerstown)
February 2025
Division of Cardiology, Department of Systems Medicine, Tor Vergata University, Rome.
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View Article and Find Full Text PDFSevere aortic valve stenosis poses a significant risk for the aging population, often escalating from mild symptoms to life-threatening heart failure and sudden death. Without timely intervention, this condition can lead to disastrous outcomes. The advent of transcatheter aortic valve implantation (TAVI) has gained popularity, emerging as an effective alternative for managing severe aortic stenosis (AS) in high-risk patients experiencing deterioration of previously implanted bioprosthetic surgical aortic valves (SAV), which introduces complex challenges such as device compatibility and anatomical considerations.
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