Publications by authors named "Krista D Kjaergaard"

Objective: Patients on dialysis treatment have poor functional vitamin K status, and this may increase the risk of vascular calcification. Vitamin K supplementation may therefore be relevant in patients on dialysis, but the procoagulant effects have not been studied. We evaluated effects of menaquinone-7 (MK-7) supplementation on biomarkers of coagulation in patients on dialysis.

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Article Synopsis
  • Vitamin K deficiency is common in dialysis patients and may lead to lower bone mineral density (BMD) and higher fracture risk, prompting a study on the effects of menaquinone-7 (MK-7) supplementation.
  • In a 2-year, double-blind trial with 123 chronic dialysis patients, participants received either MK-7 (360 µg) or a placebo while their BMD was assessed.
  • Results showed that MK-7 supplementation led to accelerated BMD loss in the distal radius but prevented lumbar spine BMD decline, suggesting MK-7 affects BMD differently at various skeletal sites and does not support its use to protect bone health in dialysis patients.
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Background: Arterial calcification is associated with cardiovascular mortality in dialysis patients. Active matrix Gla protein (MGP) is a vitamin K-dependent inhibitor of arterial calcification. Elevated plasma concentrations of inactive MGP, i.

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  • Troponin T (TnT) is a significant risk factor for negative outcomes in hemodialysis patients, and this study explored its variation over time and the effects of angiotensin II receptor blockade (ARB).
  • In a 12-month trial with 81 hemodialysis patients, participants received either ARB treatment or a placebo, with TnT levels measured repeatedly to assess any changes.
  • There was no significant difference in TnT levels between the ARB and placebo groups, but higher baseline TnT levels correlated with adverse clinical factors and an increased risk of hospital admissions and cardiovascular events during follow-up.
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Osmotic changes in plasma are assumed to cause cerebral swelling in hemodialysis patients. We investigated the acute effect of low-flux hemodialysis (HD) (removal of small molecules) and pre-dilution hemodiafiltration (pre-HDF) (additional removal of larger molecules) on cerebral compartment volumes using quantitative magnetic resonance imaging (MRI) in chronic uremic patients. Twelve patients underwent a session of HD and pre-HDF in a randomized crossover study with equal ultrafiltration.

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Introduction: Health related quality of life (HRQOL) is markedly reduced in hemodialysis patients compared to the general population. We investigated the course of self-reported HRQOL over time and the association with selected factors, focusing on changes in glomerular filtration rate (GFR).

Methods: Eighty-two newly started hemodialysis patients from the SAFIR cohort filled out the Kidney Disease Quality of Life Short Form Version 1.

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Introduction: Low-grade chronic inflammation is common in hemodialysis (HD) patients. Previous studies suggest an anti-inflammatory effect of angiotensin II receptor blocker (ARB) treatment. The aim of this study was to compare the effect of ARB vs.

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Background And Aim: Little is known about the tolerability of antihypertensive drugs during hemodialysis treatment. The present study evaluated the use of the angiotensin II receptor blocker (ARB) irbesartan.

Design: Randomized, double-blind, placebo-controlled, one-year intervention trial.

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Background: Glomerular filtration rate (GFR) declines during long-term dialysis treatment. In peritoneal dialysis, blockade of the renin-angiotensin-aldosterone system reduces GFR decline. Observational studies suggest that similar treatment may preserve kidney function in hemodialysis (HD).

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Agents blocking the renin-angiotensin-aldosterone system are frequently used in patients with end-stage renal disease, but whether they exert beneficial cardiovascular effects is unclear. Here the long-term effects of the angiotensin II receptor blocker, irbesartan, were studied in hemodialysis patients in a double-blind randomized placebo-controlled 1-year intervention trial using a predefined systolic blood pressure target of 140 mm Hg (SAFIR study). Each group of 41 patients did not differ in terms of age, blood pressure, comorbidity, antihypertensive treatment, dialysis parameters, and residual renal function.

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Introduction: Cardiovascular (CV) events are a major cause of morbidity and mortality in haemodialysis (HD) patients. Hypertension, increased arterial stiffness and left ventricular (LV) hypertrophy are highly prevalent and are often poorly controlled. Volume overload is an important factor and survival could be improved by treatment strategies that preserve residual renal function (RRF), reduce blood pressure, and decrease arterial stiffness and LV hypertrophy.

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Background: Residual renal function in haemodialysis patients is of increasing interest. However, reproducibility and agreement between methods to measure and estimate glomerular filtration rate (GFR) require further elucidation. The aim of this study was to evaluate the accuracy and reproducibility of GFR estimates based on endogenous markers in haemodialysis patients.

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Objective: Aortic pulse wave velocity (aPWV) is a gold standard noninvasive marker of arterial stiffness. aPWV is usually obtained as carotid-femoral pulse wave velocity by measurements on the common carotid artery and the femoral artery. The carotid arteries branch slightly differently from the aorta towards the right and left side of the neck.

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Objective: This method comparison study, conducted at the peritoneal dialysis (PD) outpatient clinic of the Department of Renal Medicine, Aarhus University Hospital, Denmark, set out to evaluate the accuracy and reproducibility of methods for estimating glomerular filtration rate (GFR) based on endogenous markers in PD patients.

Patients: The 12 consecutive patients included in the study were examined twice while in a stable condition. All patients finished the study.

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Purpose: In dialysis patients, longer survival is associated with a higher residual renal function. Randomized controlled trials are conducted to clarify how residual renal function can be preserved. However, existing methods for measuring residual renal function are uncertain and there is a need for establishing a standard for measurements of glomerular filtration rate (GFR) in dialysis patients.

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It has been documented that preservation of residual renal function in dialysis patients improves quality of life as well as survival. Clinical trials on strategies to preserve residual renal function are clearly lacking. While waiting for more results from clinical trials, patients will benefit from clinicians being aware of available knowledge.

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A previously healthy 51 year-old man developed various degrees of hypovolaemia 6 times between May 2003 and November 2006. The patient was thoroughly examined for causal agents without any findings (e.g.

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