Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis

Background: Recent interests have mainly focused on the roles of serum calcium and phosphorus and their product (Ca-P product) in the development of valvular heart disease. The present study assessed the relationship between the Ca-P product and the severity of valvular heart disease in end-stage re...

Full description

Bibliographic Details
Main Authors: Masoumeh Kahnooji, Mohammad Masoomi, Ali Naderinasab, Akram Zaeem, Mehrdad Sheikhvatan
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2010-04-01
Series:Journal of Tehran University Heart Center
Subjects:
Online Access:https://jthc.tums.ac.ir/index.php/jthc/article/view/166
_version_ 1818835665626857472
author Masoumeh Kahnooji
Mohammad Masoomi
Ali Naderinasab
Akram Zaeem
Mehrdad Sheikhvatan
author_facet Masoumeh Kahnooji
Mohammad Masoomi
Ali Naderinasab
Akram Zaeem
Mehrdad Sheikhvatan
author_sort Masoumeh Kahnooji
collection DOAJ
description Background: Recent interests have mainly focused on the roles of serum calcium and phosphorus and their product (Ca-P product) in the development of valvular heart disease. The present study assessed the relationship between the Ca-P product and the severity of valvular heart disease in end-stage renal disease (ESRD) patients undergoing chronic hemodialysis. Methods: This cross-sectional study reviewed the clinical course of 72 consecutive patients with the final diagnosis of ESRD candidated for chronic hemodialysis. The severity of valvular heart disease was determined using M-mode two-dimensional echocardiography. The serum calcium and phosphate values adopted were those values measured on the day between the two consecutive dialyses, and the Ca-P product was calculated.  Results: The most common causes of ESRD were diabetic nephropathy, malignant hypertension, and chronic glomerulonephritis. The mean Ca-P product level in the dialysis patients was 50.44 ± 17.78 mg2/dL2. The receiver-operator characteristic (ROC) curve illustrated that a Ca-P product level > 42 mg2/dL2 was the optimal value in terms of sensitivity and specificity for predicting the presence of valvular insufficiency. Aortic insufficiency was directly associated with a high Ca-P product value after adjustment for age, gender, serum albumin, diabetes, hypertension, hyperlipidemia, coronary artery disease, and serum creatinine (β = 0.412, SE = 158, p value= 0.011). Conclusion: A positive relationship between the Ca-P product value and the severity of aortic insufficiency is expected. Achieving an appropriate control of the Ca-P product level may decrease aortic valve calcification and improve the survival of patients on chronic hemodialysis.
first_indexed 2024-12-19T02:54:20Z
format Article
id doaj.art-e169a2f2ee7e468a811922655ec4de1e
institution Directory Open Access Journal
issn 1735-8620
2008-2371
language English
last_indexed 2024-12-19T02:54:20Z
publishDate 2010-04-01
publisher Tehran University of Medical Sciences
record_format Article
series Journal of Tehran University Heart Center
spelling doaj.art-e169a2f2ee7e468a811922655ec4de1e2022-12-21T20:38:27ZengTehran University of Medical SciencesJournal of Tehran University Heart Center1735-86202008-23712010-04-0152164Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic HemodialysisMasoumeh Kahnooji0Mohammad Masoomi1Ali Naderinasab2Akram Zaeem3Mehrdad Sheikhvatan4Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.Background: Recent interests have mainly focused on the roles of serum calcium and phosphorus and their product (Ca-P product) in the development of valvular heart disease. The present study assessed the relationship between the Ca-P product and the severity of valvular heart disease in end-stage renal disease (ESRD) patients undergoing chronic hemodialysis. Methods: This cross-sectional study reviewed the clinical course of 72 consecutive patients with the final diagnosis of ESRD candidated for chronic hemodialysis. The severity of valvular heart disease was determined using M-mode two-dimensional echocardiography. The serum calcium and phosphate values adopted were those values measured on the day between the two consecutive dialyses, and the Ca-P product was calculated.  Results: The most common causes of ESRD were diabetic nephropathy, malignant hypertension, and chronic glomerulonephritis. The mean Ca-P product level in the dialysis patients was 50.44 ± 17.78 mg2/dL2. The receiver-operator characteristic (ROC) curve illustrated that a Ca-P product level > 42 mg2/dL2 was the optimal value in terms of sensitivity and specificity for predicting the presence of valvular insufficiency. Aortic insufficiency was directly associated with a high Ca-P product value after adjustment for age, gender, serum albumin, diabetes, hypertension, hyperlipidemia, coronary artery disease, and serum creatinine (β = 0.412, SE = 158, p value= 0.011). Conclusion: A positive relationship between the Ca-P product value and the severity of aortic insufficiency is expected. Achieving an appropriate control of the Ca-P product level may decrease aortic valve calcification and improve the survival of patients on chronic hemodialysis.https://jthc.tums.ac.ir/index.php/jthc/article/view/166Heart valve diseaseRenal dialysisKidney failureCalciumPhosphorus
spellingShingle Masoumeh Kahnooji
Mohammad Masoomi
Ali Naderinasab
Akram Zaeem
Mehrdad Sheikhvatan
Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
Journal of Tehran University Heart Center
Heart valve disease
Renal dialysis
Kidney failure
Calcium
Phosphorus
title Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
title_full Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
title_fullStr Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
title_full_unstemmed Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
title_short Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
title_sort relationship between calcium phosphorus product and severity of valvular heart insufficiency in patients undergoing chronic hemodialysis
topic Heart valve disease
Renal dialysis
Kidney failure
Calcium
Phosphorus
url https://jthc.tums.ac.ir/index.php/jthc/article/view/166
work_keys_str_mv AT masoumehkahnooji relationshipbetweencalciumphosphorusproductandseverityofvalvularheartinsufficiencyinpatientsundergoingchronichemodialysis
AT mohammadmasoomi relationshipbetweencalciumphosphorusproductandseverityofvalvularheartinsufficiencyinpatientsundergoingchronichemodialysis
AT alinaderinasab relationshipbetweencalciumphosphorusproductandseverityofvalvularheartinsufficiencyinpatientsundergoingchronichemodialysis
AT akramzaeem relationshipbetweencalciumphosphorusproductandseverityofvalvularheartinsufficiencyinpatientsundergoingchronichemodialysis
AT mehrdadsheikhvatan relationshipbetweencalciumphosphorusproductandseverityofvalvularheartinsufficiencyinpatientsundergoingchronichemodialysis