Publications by authors named "G Kosmadakis"

Article Synopsis
  • The study investigates the impact of Ketoanalogues on renal function in advanced chronic kidney disease patients following a very low-protein diet.
  • It evaluates changes in renal function and various health metrics over 6, 12, and 24 months for patients on a low-protein diet with or without Ketoanalogues.
  • Results indicate that Ketoanalogues significantly protect kidney function and improve bone mineral metabolism compared to a diet without them, despite no significant differences in protein intake between the two groups.
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Background&aims: Patients with end-stage renal failure on chronic hemodialysis present an important risk of malnutrition, which is associated with a significant risk of morbidity and mortality. Meals during the dialysis session are important for maintaining the nutritional status of dialysis patients but represent a risk for intradialytic hypotension. During the COVID-19 pandemic, several dialysis centers stopped providing meals during the dialysis session as a protective measure.

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This work investigates a vapour injection scroll compressor integrated in a heat pump using the refrigerant R1234ze(E). The water-to-water heat pump was tested under a wide temperature range at the evaporator and condenser sides. The test results revealed that the performance is significantly reduced for lifts of over 30 K with the coefficient of performance being even below 2 and the maximum 2 law efficiency was just 28%.

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Objective: Duplex ultrasound-guided angioplasty (DA) for hemodialysis vascular accesses remains questionable regarding its feasibility and safety. Minor complications (requiring no more treatment than nominal therapy) might be over-reported. Our hypothesis is that this procedure has no significant differences between observed rates and the recommended threshold of main outcomes of the procedure defined by the standards of arteriovenous fistulas (AVF) angioplasty.

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Background: The methods of estimating vascular access (VA) flow rates are usually based on the indicator dilution theory by measuring recirculation during dialysis sessions.

Methods: This is an observational study comparing the VA flow rates measured by NIKKISO DBB-EXA™ and Transonic®. Sixty-five patients (38 M/27 F, mean age 72 ± 10 years) participated in the study.

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