Observational studyMedical principles and practice : international journal of the Kuwait University, Health Science Centre2021
The Association between Changes in Low Parathyroid Hormone Levels and Cardiac Function Decline in Maintenance Hemodialysis Patients: A Prospective Observational Study.
Observational study in Medical principles and practice : international journal of the Kuwait University, Health Science Centre, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesThe aim of this study was to investigate a possible association between changes in low parathyroid hormone (PTH) levels and cardiac function decline in maintenance hemodialysis (MHD) patients.
methodsA total of 150 MHD patients were included and followed for 24 months. The enrolled patients were divided into 3 groups based on their PTH status at baseline and 24 months. Factors potentially involved in changes in the PTH level and cardiac function were compared using multivariate logistic regression analysis.
resultsAt 24 months, the presence of low PTH levels increased by 26.7%. The main independent factors for low PTH levels were a low BMI, hemoglobin, and serum albumin and high serum calcium (p < 0.05). A persistently low PTH level at 24 months was associated with a decrease in the left ventricular ejection fraction (LVEF) and increase in valvular calcification (p < 0.05). Additionally, a decrease in PTH levels from normal or high to low values was associated with a decrease in LVEF and cardiac output (CO) and an increase in valvular calcification (p < 0.05). Furthermore, compared with those of the persistently low PTH level group, LVEF values were lower at 24 months in the group with a decrease from high/normal to low PTH level (p < 0.05).
conclusionPersistently low PTH levels and changes in the PTH level from high/normal to low were associated with cardiac function decline in MHD patients. Moreover, a PTH level change from high/normal to low showed a stronger correlation with cardiac function decline.
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