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Mitral valve calcification as an index of left ventricular dysfunction in patients with end-stage renal disease on peritoneal dialysis. 1994

J Hüting
University of Giessen Medical School, Department of Internal Medicine, Germany.

To determine whether mitral valve or anulus calcification (MC) in patients with end-stage renal disease is associated with abnormalities of left ventricular (LV) structure and function, cardiac characteristics of 55 patients undergoing continuous ambulatory peritoneal dialysis (CAPD) with (n = 26; age: 59 +/- 10 years) vs without (n = 29; age: 58 +/- 12 years) MC were analyzed using echocardiography and Doppler echocardiography. Sclerosis of the mitral valve anulus was detected in 18 (7 women, 11 men; age: 58 +/- 10 years) patients, sclerosis of mitral valve leaflets in 24 (13 women, 9 men; age: 59 +/- 10 years) patients. Patients with MC had higher systolic arterial blood pressure before initiation of dialysis therapy (191/104 mm Hg vs 173/94 mm Hg; p < 0.05) and higher calcium-phosphorus products (55 +/- 13 vs 42 +/- 16; p < 0.05) during CAPD therapy than those without MC. Neither prevalence nor severity of MC was related to dialysis duration or patient age. Systolic LV function was reduced (ejection fraction: 58 +/- 12 percent vs 65 +/- 13 percent; p < 0.05) and LV end-diastolic diameters were dilated (54 +/- 5 vs 50 +/- 8 mm; p < 0.05) in patients with MC. Left atrial dilatation (73 percent vs 31 percent; p < 0.005) and mitral valve regurgitation (65 percent vs 21 percent; p < 0.001) were more frequent in patients with vs those without MC. Excluding patients with significant mitral regurgitation from pulsed Doppler analysis, diastolic LV function was comparably impaired in patients with vs those without MC (maximal early/atrial filling velocity ratio: 0.77 +/- 0.25 vs 0.75 +/- 0.22; atrial filling fraction: 47 +/- 10 percent vs 48 +/- 11 percent; p = NS). The presented data suggest that MC follows long-standing and severe arterial hypertension before start of dialysis therapy. Therefore, effective blood pressure control in the predialysis period may be a tool to prevent these lesions. MC has clinical significance as a marker of LV dilatation and reduced LV systolic function in patients with chronic CAPD.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007676 Kidney Failure, Chronic The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION. ESRD,End-Stage Renal Disease,Renal Disease, End-Stage,Renal Failure, Chronic,Renal Failure, End-Stage,Chronic Kidney Failure,End-Stage Kidney Disease,Chronic Renal Failure,Disease, End-Stage Kidney,Disease, End-Stage Renal,End Stage Kidney Disease,End Stage Renal Disease,End-Stage Renal Failure,Kidney Disease, End-Stage,Renal Disease, End Stage,Renal Failure, End Stage
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008943 Mitral Valve The valve between the left atrium and left ventricle of the heart. Bicuspid Valve,Bicuspid Valves,Mitral Valves,Valve, Bicuspid,Valve, Mitral,Valves, Bicuspid,Valves, Mitral
D008944 Mitral Valve Insufficiency Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation. Mitral Incompetence,Mitral Regurgitation,Mitral Valve Incompetence,Mitral Insufficiency,Mitral Valve Regurgitation,Incompetence, Mitral,Incompetence, Mitral Valve,Insufficiency, Mitral,Insufficiency, Mitral Valve,Regurgitation, Mitral,Regurgitation, Mitral Valve,Valve Incompetence, Mitral,Valve Insufficiency, Mitral,Valve Regurgitation, Mitral
D009202 Cardiomyopathies A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS). Myocardial Disease,Myocardial Diseases,Myocardial Diseases, Primary,Myocardial Diseases, Secondary,Myocardiopathies,Primary Myocardial Disease,Cardiomyopathies, Primary,Cardiomyopathies, Secondary,Primary Myocardial Diseases,Secondary Myocardial Diseases,Cardiomyopathy,Cardiomyopathy, Primary,Cardiomyopathy, Secondary,Disease, Myocardial,Disease, Primary Myocardial,Disease, Secondary Myocardial,Diseases, Myocardial,Diseases, Primary Myocardial,Diseases, Secondary Myocardial,Myocardial Disease, Primary,Myocardial Disease, Secondary,Myocardiopathy,Primary Cardiomyopathies,Primary Cardiomyopathy,Secondary Cardiomyopathies,Secondary Cardiomyopathy,Secondary Myocardial Disease
D010531 Peritoneal Dialysis, Continuous Ambulatory Portable peritoneal dialysis using the continuous (24 hours a day, 7 days a week) presence of peritoneal dialysis solution in the peritoneal cavity except for periods of drainage and instillation of fresh solution. CAPD,Continuous Ambulatory Peritoneal Dialysis
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002114 Calcinosis Pathologic deposition of calcium salts in tissues. Calcification, Pathologic,Calcinosis, Tumoral,Microcalcification,Microcalcinosis,Pathologic Calcification,Calcinoses,Calcinoses, Tumoral,Microcalcifications,Microcalcinoses,Tumoral Calcinoses,Tumoral Calcinosis

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