PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients

Introduction: Chronic kidney disease (CKD)-mineral and bone disorder (MBD) is a major complication in hemodialysis (HD) patients. Serum intact parathyroid hormone (iPTH) has been associated with prognosis in these patients, however, the optimal range to reduce mortality remains unknown. Methods:...

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Main Authors: Marisa Roldão, Rachele Escoli, Hernâni Gonçalves, Flora Sofia, Karina Lopes, Paulo Santos
Format: Article
Language:English
Published: Publicações Ciência e Vida 2022-10-01
Series:Revista Portuguesa de Nefrologia e Hipertensão
Subjects:
Online Access:https://cdn02.spnefro.pt/pjnh/85/05Nefro363Original1.pdf
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author Marisa Roldão
Rachele Escoli
Hernâni Gonçalves
Flora Sofia
Karina Lopes
Paulo Santos
author_facet Marisa Roldão
Rachele Escoli
Hernâni Gonçalves
Flora Sofia
Karina Lopes
Paulo Santos
author_sort Marisa Roldão
collection DOAJ
description Introduction: Chronic kidney disease (CKD)-mineral and bone disorder (MBD) is a major complication in hemodialysis (HD) patients. Serum intact parathyroid hormone (iPTH) has been associated with prognosis in these patients, however, the optimal range to reduce mortality remains unknown. Methods: We conducted a retrospective study of incident HD patients, who were categorized into 4 groups according to iPTH serum level: <150 pg/mL, 150-300 pg/mL, 301-600 pg/mL and >600 pg/mL. All-cause and cardiovascular mortality over a mean follow-up of 3 years was assessed using standard survival methods. Results: One hundred and forty-nine patients were included. Patients with low iPTH presented low serum albumin, phosphorus, and bonespecific alkaline phosphatase (BAP), increased c-reactive protein (CRP) and higher serum bicarbonate (p<0.05). Those with iPTH <150 pg/mL had an increased risk of all-cause and cardiovascular mortality, when compared to those with iPTH 301-600 pg/mL (HR: 0.59; 95% CI: 0.36-0.96; p=0.035) and iPTH >600 pg/mL (HR: 0.39; 95% CI: 0.20-0.78; p=0.008), even after adjusting for potential confounding factors as age, albumin, and comorbidities (diabetes, congestive heart failure (CHF), and hypertension). Discussion: PTH levels were associated with all-cause and cardiovascular mortality risk in our cohort of incident HD patients. Our results suggest that patients with low iPTH at HD initiation had an increased mortality risk, which may reflect a frail group of patients with anorexia, sarcopenia, malnutrition, and inflammation.
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spelling doaj.art-f4d8332bb4d0428298324d40310820c92022-12-22T03:22:49ZengPublicações Ciência e VidaRevista Portuguesa de Nefrologia e Hipertensão0872-01692183-12892022-10-0136315616010.32932/pjnh.2022.10.202PTH Serum Levels and Mortality Risk among Incident Hemodialysis PatientsMarisa Roldão0https://orcid.org/0000-0002-0448-0203Rachele Escoli1https://orcid.org/0000-0002-2962-0794Hernâni Gonçalves2https://orcid.org/0000-0003-0156-9840Flora Sofia3https://orcid.org/0000-0003-4026-3174Karina Lopes4https://orcid.org/0000-0003-2606-3272Paulo Santos5https://orcid.org/0000-0003-3912-7247Department of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalDepartment of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalDepartment of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalDepartment of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalDepartment of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalDepartment of Nephrology, Centro Hospitalar do Médio Tejo, Torres Novas, PortugalIntroduction: Chronic kidney disease (CKD)-mineral and bone disorder (MBD) is a major complication in hemodialysis (HD) patients. Serum intact parathyroid hormone (iPTH) has been associated with prognosis in these patients, however, the optimal range to reduce mortality remains unknown. Methods: We conducted a retrospective study of incident HD patients, who were categorized into 4 groups according to iPTH serum level: <150 pg/mL, 150-300 pg/mL, 301-600 pg/mL and >600 pg/mL. All-cause and cardiovascular mortality over a mean follow-up of 3 years was assessed using standard survival methods. Results: One hundred and forty-nine patients were included. Patients with low iPTH presented low serum albumin, phosphorus, and bonespecific alkaline phosphatase (BAP), increased c-reactive protein (CRP) and higher serum bicarbonate (p<0.05). Those with iPTH <150 pg/mL had an increased risk of all-cause and cardiovascular mortality, when compared to those with iPTH 301-600 pg/mL (HR: 0.59; 95% CI: 0.36-0.96; p=0.035) and iPTH >600 pg/mL (HR: 0.39; 95% CI: 0.20-0.78; p=0.008), even after adjusting for potential confounding factors as age, albumin, and comorbidities (diabetes, congestive heart failure (CHF), and hypertension). Discussion: PTH levels were associated with all-cause and cardiovascular mortality risk in our cohort of incident HD patients. Our results suggest that patients with low iPTH at HD initiation had an increased mortality risk, which may reflect a frail group of patients with anorexia, sarcopenia, malnutrition, and inflammation. https://cdn02.spnefro.pt/pjnh/85/05Nefro363Original1.pdfchronic kidney disease-mineral and bone disorder/etiologyparathyroid hormonerenal dialysis/adverse effects
spellingShingle Marisa Roldão
Rachele Escoli
Hernâni Gonçalves
Flora Sofia
Karina Lopes
Paulo Santos
PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
Revista Portuguesa de Nefrologia e Hipertensão
chronic kidney disease-mineral and bone disorder/etiology
parathyroid hormone
renal dialysis/adverse effects
title PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
title_full PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
title_fullStr PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
title_full_unstemmed PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
title_short PTH Serum Levels and Mortality Risk among Incident Hemodialysis Patients
title_sort pth serum levels and mortality risk among incident hemodialysis patients
topic chronic kidney disease-mineral and bone disorder/etiology
parathyroid hormone
renal dialysis/adverse effects
url https://cdn02.spnefro.pt/pjnh/85/05Nefro363Original1.pdf
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