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- Lindström, Stefan B, 1974-, et al.
(författare)
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Computer-Aided Evaluation of Blood Vessel Geometry From Acoustic Images
- 2018
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Ingår i: Journal of ultrasound in medicine. - : Wiley-Blackwell Publishing Inc.. - 0278-4297 .- 1550-9613. ; 37:4, s. 1025-1031
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Tidskriftsartikel (refereegranskat)abstract
- A method for computer-aided assessment of blood vessel geometries based on shape-fitting algorithms from metric vision was evaluated. Acoustic images of cross sections of the radial artery and cephalic vein were acquired, and medical practitioners used a computer application to measure the wall thickness and nominal diameter of these blood vessels with a caliper method and the shape-fitting method. The methods performed equally well for wall thickness measurements. The shape-fitting method was preferable for measuring the diameter, since it reduced systematic errors by up to 63% in the case of the cephalic vein because of its eccentricity.
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- Uhlin, Fredrik, et al.
(författare)
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Optical Estimation of Beta 2 Microglobulin during Hemodiafiltration - Does It Work?
- 2015
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Ingår i: Blood Purification. - : S. Karger. - 0253-5068 .- 1421-9735. ; 40:2, s. 113-119
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Currently, urea reduction seems to be the most widely used dialysis dose parameter. The aim of this study was to investigate the possibility to monitor beta 2-microglobulin (β2-M) elimination by utilizing the ultraviolet (UV) absorbance of spent dialysate.METHODS: Blood and spent dialysate were collected during two week's sessions in 8 patients, one week in hemodialysis (HD) and one in hemodiafiltration (HDF). Correlation analysis between UV-wavelengths and concentrations of solutes in spent dialysate was performed. The reduction ratio (RR) of concentrations in blood, dialysate and UV-absorbance were compared.RESULTS: Differences between HD and HDF were discovered in wavelength correlation maxima for the solutes. Relative error in RR (%) was larger (p < 0.05) for β2-M than for the other solutes. The most reasonable explanation is that β2-M does not absorb UV-radiation; instead, the absorbance of surrogate substances is measured.CONCLUSION: A high correlation between UV-absorbance and β2-M can be achieved for HDF but not for HD. Still, UV-absorbance could perhaps be used in solely HDF mode for estimation of β2-M removal. © 2015 S. Karger AG, Basel.
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- Yngman Uhlin, Pia, et al.
(författare)
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Life in standby : hemodialysis patients' experiences of waiting for kidney transplantation.
- 2016
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Ingår i: Journal of Clinical Nursing. - : Wiley. - 0962-1067 .- 1365-2702. ; 25:1-2, s. 92-98
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Tidskriftsartikel (refereegranskat)abstract
- AIM AND OBJECTIVES: Our aim was to explore the experiences of hemodialysis patients who are waiting for a kidney transplant.BACKGROUND: Currently, more than 100,000 persons are waiting for kidney transplantation in the United States. In Sweden, the number is exceeding 600. The waiting period for a deceased donor can be one to three years or even longer in Sweden. This can be challenging, since the patients' situation, with chronic treatment and illness, is burdensome and requires advanced self-care.DESIGN: This study included a purposeful sample of eight patients (33-53 years old) who had been undergoing hemodialysis treatment for at least six months and were waiting for kidney transplantation.METHODS: The patients were interviewed, and descriptive content analysis was performed.RESULTS: Four categories emerged: (1) 'The waiting process,' what thoughts and expectations occur and what to do and how to be prepared for the transplant. (2) 'Awareness that time is running out,' patients felt tied up by treatment and by needing to be available for transplantation, and they had concerns about health. (3) 'Need for communication,' patients described needing support from others and continuous information from the staff. (4) 'Having relief and hope for the future,' patients described how to preserve the hope of being able to participate fully in life once again.CONCLUSIONS: This study reveals the need for extra attention paid to patients waiting for kidney transplantation. Patients' experiences during the waiting period indicate that pretransplant patients have an increased need to be prepared for the transition and for life post-transplantation.RELEVANCE TO CLINICAL PRACTICE: Dialysis patients on waiting lists must be prepared for the upcoming life change. This includes preserving hope during the waiting period and being mentally prepared for transplantation and a dialysis-free life. A pretransplant education program to prevent medical and psychosocial issues is highly recommended.
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- Yngman Uhlin, Pia, 1964-, et al.
(författare)
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Sleep Quality, Fatigue, and Health-Related Quality of Life in Patients on Initial Peritoneal Dialysis and Multiple Modalities after Two Years : A Prospective Study
- 2019
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Ingår i: Nephrology Nursing Journal. - Pitman, NJ, United States : American Nephrology Nurses Association (ANNA). - 1526-744X .- 2163-5390. ; 46:6, s. 615-649
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to investigate changes in sleep quality, fatigue, mental health, and health-related quality of life (HRQoL) over a two-year period among patients undergoing peritoneal dialysis treatment at home. We further explored the extent to which sleep quality, fatigue, and mental health predicted health-related quality of life outcomes. This prospective study included 55 patients. Sleep parameters changed over two years, independently of treatment. Sleep variables at baseline, to some extent, predicted sleep quality after two years. Daytime sleepiness can be a long-term problem. Findings indicate improvements in nocturnal sleep over a two-year time period, independently of dialysis treatment. In contrast, fatigue remained unchanged over the same time period. Transplantation seems to generally benefit the outcome of HRQoL. Strategies to improve sleep and HRQoL may include systematic risk factor modification and efforts to optimise symptomatic treatment.
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