Health Psychology Research / HPR / Volume 3 / Issue 1 / DOI: 10.4081/​hpr.2015.1060
GENERAL

The impact of Kt/V urea-based  dialysis adequacy on quality  of life and adherence in  haemodialysis patients:  a cross-sectional study in  Greece

Paraskevi Theofilou1* Constantinos Togas2 Chrysoula Vasilopoulou3 Christos Minos4 Sofia Zyga5 Giorgos Tzitzikos6
Show Less
1 Sotiria Hospital for Thoracic Diseases, Athens
2 Social Worker-Psychologist, Social Worker-Psychologist
3 Department of Nurse Training, Continual Renal Replacement Therapy, Αriti Company, Acharnes
4 General Hospital of Korinthos, General Hospital of Korinthos
5 Department of Nursing, Faculty of Human Movement and Quality of Life Sciences, University of Peloponnese, Sparta
6 6Renal Department, General Hospital of Corinth, Greece
Submitted: 9 February 2013 | Accepted: 2 March 2013 | Published: 13 April 2015
© 2015 by the Author(s). Licensee Health Psychology Research, USA. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC BY-NC 4.0) ( https://creativecommons.org/licenses/by-nc/4.0/ )
Abstract

There is clear evidence of a link between dialysis adequacy (as measured by urea kinet ic modeling or urea reduction ratio) and such important clinical outcomes as morbidity and mortality. Evidence regarding the relationship between dialysis adequacy and quality of life (QOL) outcomes as well as adherence is less clear. The present paper is a study protocol which is planning to answer the following research question: what is the impact of dialy sis adequacy on QOL and adherence in a sample of hemodialysis patients? The final sample size will be around 100 patients undergoing hemodialysis. Each subject’s QOL and adher ence will be measured using the following instruments: i) the Missoula-VITAS quality of life index 25; ii) the multidimensional scale of perceived social support and iii) the simplified medication adherence questionnaire. Dialysis adequacy is expected to be related to QOL and adherence scores. 

Keywords
dialysis adequacy
hemodialysis
qual ity of life
adherence
social support
References

1. Grassmann A, Gioberge S, Moeller S. Brown G. ESRD patients in 2004: global overview of patient numbers, treatment modalities and associated trends. Nephrol Dial Transplant 2005;20:2587-93.
2. Harnett JD, Kent GM, Foley RN, Parfrey PS. Cardiac function and hematocrit level. Am J Kidney Dis 1995;25:3-7.
3. Theofilou P. Self-reported functional status: an important predictor of mental health outcomes among chronic dialysis patients. Eur J Psychological Assess 2013;29:276-82.
4. Theofilou P. Quality of life and mental health in hemodialysis and peritoneal dialysis patients: the role of health beliefs. Int Urol Nephrol 2012;44:245-53.
5. Canadian Erythropoietin Study Group. Association between recombinant human erythropoietin and quality of life and exercise capacity of patients receiving hemodialysis. BMJ 1990;300:573-8. 
6. Tawney KW, Tawney PJ, Hladik G. The life readiness program: a physical rehabilitation program for patients on hemodialysis. Am J Kidney Dis 2000;36:581-91. 
7. Kutner NG, Zhang R, McClellan WM. Patient-reported quality of life early in dialysis treatment: Effects associated with usual exercise activity. Nephrol Nurs J 2000;27:357-67. 
8. Theofilou P. Evaluation of quality of life in Greek patients with heart failure: the role of health cognitions before and after participation in an exercised-based rehabilitation program. J Clin Trials 2012:2:1-5. 
9. Laupacis A, Keown P, Pus N. A study of the quality of life and cost-utility of renal transplantation. Kidney Int 1996;50:235-42. 
10. Powers KM, Wilkowski MJ, Helmandollar AW, et al. Improved urea reduction ratio and Kt/V in large hemodialysis patients using two dialyzers in parallel. Am J Kidney Dis 2000;35:266-74.
11. Mapes DL, Lopes AA, Satayathan S, et al. Health-related quality of life as a predictor of mortality and hospitalization: the Dialysis Outcomes and Practice Patterns Study (DOPPS). Kidney Int 2003;64:339-49. 
12. Unruh M, Benz R, Greene T. et al. Effects of hemodialysis dose and membrane flux on health-related quality of life in the HEMO Study. Kidney Int 2004;66:355-66.
13. Schwartz CE, Merriman M, Reed G, et al. Evaluation of the Missoula-VITAS quality of life index-revised: research tool or clinical tool? J Pall Med 2005;8:121-35.
14. Theofilou P, Kapsalis F, Panagiotaki H. Greek version of MVQOLI-15: translation and cultural adaptation. Int J Caring Sci 2012;5:289-94. 
15. Theofilou P, Aroni A, Ralli M, et al. Measuring health-related quality of life in hemodialysis patients: psychometric properties of the Missoula-VITAS quality of life index (MVQOLI-15) in Greece. Health Psychol Res [In press]. 
16. Eker D, Arkar H, Yaldiz H. Generality of support sources and psychometric properties of a scale of perceived social support in Turkey. Soc Psychiatry Psychiatr Epidemiol 2000;35:228-33.
17. Zimet G, Dahlem N, Zimet S, Farley G. The Multidimensional scale of perceived social support. J Pers Assess 1988;52:30-41. 
18. Theofilou P. The relation of social support to mental health and locus of control in chronic kidney disease. J Renal Nurs 2012;4:18-22.
19. Theofilou P, Zyga S, Tzitzikos G, et al. Assessing social support in Greek patients on maintenance hemodialysis: psychometric properties of the Multidimensional Scale of Perceived Social Support’’. In: Chronic kidney disease: signs/symptoms, management options and potential complications. New York: Nova Publishers; 2013. pp 265-279.
20. Ortega Suárez FJ, Sánchez Plumed J, Pérez Valentín MA, et al. Validation on the simplified medication adherence questionnaire (SMAQ) in renal transplant patients on tacrolimus. Nefrología 2011;31:690-6.
21. Theofilou P. Results from the translation and cultural adaptation of the Greek simplified medication adherence questionnaire (GR-SMAQ) in patients with lung cancer. J Clin Trials 2012;1:1-3.

Conflict of interest
The authors declare no potential conflict of interests.
Share
Back to top
Health Psychology Research, Electronic ISSN: 2420-8124 Published by Health Psychology Research