Document Detail

Are PTH serum levels predictive of coronary calcifications in haemodialysis patients?
MedLine Citation:
PMID:  17597083     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Cardiac calcifications are a frequent occurrence in uraemic subjects and are probably connected to the increased cardiovascular mortality of haemodialysis patients. There is substantial support to the hypothesis that low levels of serum PTH in haemodialysis patients are associated with increased vascular and cardiac calcium deposits, due to decreased buffering capacity of bone in low turnover osteodystrophy. The present study has been carried out on a cohort of patients on haemodialysis, with exclusion of previously parathyroidectomized patients, with the aim to evaluate the association between PTH serum levels and coronary calcifications. METHODS: The study has been carried out in a cohort of 197 haemodialysis patients. There were 133 males and 64 females. Twenty-two patients had diabetes mellitus. Average age was 58.6 +/- 12.9 years. Patients were divided into groups of intact PTH levels, 0-150 (A), 150-300 (B), 300-600 (C) and >600 (D) pg/ml. RESULTS: The values of coronary scores in the PTH groups were as follows: (A) 624.7 +/- 939, (B) 866.4 +/- 1080, (C) 1202.8 +/- 1742.3 and (D) 1872.7 +/- 2961.9. The difference between coronary calcium scores was significant (P < 0.01). A general linear model identified serum calcium and dialysis age as independent factors of calcium deposits in the high PTH group. CONCLUSIONS: No prominent association between low PTH serum levels and the severity of coronary calcium deposits in haemodialysis patients was found while increased levels of PTH, with special regard to very elevated levels, associated with more frequent hypercalcaemia and hyperphosphataemia, should be considered a major risk factor of coronary calcifications and cardiac events.
Giorgio Coen; Micaela Manni; Daniela Mantella; Andrea Pierantozzi; Alessandro Balducci; Stefano Condò; Salvatore DiGiulio; Lijljana Yancovic; Basilio Lippi; Simone Manca; Massimo Morosetti; Luigi Pellegrino; Giovanni Simonetti; Massimo Taccone Gallucci; Giorgio Splendiani
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Publication Detail:
Type:  Journal Article     Date:  2007-06-27
Journal Detail:
Title:  Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association     Volume:  22     ISSN:  0931-0509     ISO Abbreviation:  Nephrol. Dial. Transplant.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-30     Completed Date:  2008-03-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706402     Medline TA:  Nephrol Dial Transplant     Country:  England    
Other Details:
Languages:  eng     Pagination:  3262-7     Citation Subset:  IM    
Ospedale Israelitico, TorVergata Hospital, Rome, Italy.
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MeSH Terms
Biological Markers / blood
Calcinosis / epidemiology*
Cohort Studies
Coronary Disease / epidemiology*
Diabetic Nephropathies / therapy
Hypertension / epidemiology
Kidney Failure, Chronic / complications,  therapy*
Middle Aged
Parathyroid Hormone / blood*
Predictive Value of Tests
Renal Dialysis / adverse effects*
Risk Factors
Reg. No./Substance:
0/Biological Markers; 0/Parathyroid Hormone
Comment In:
Nephrol Dial Transplant. 2008 Mar;23(3):1067-8; author reply 1068-9   [PMID:  18045828 ]

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