Andrew Davenport1, Ayman Guirguis2,3,4, Michael Almond5, Clara Day6, Joseph Chilcot7, Maria Da Silva Gane2,3, Naomi Fineberg4, Karin Friedl2, Benjamin Spencer8, David Wellsted2, Ken Farrington2,3. 1. UCL Centre for Nephrology, Royal Free Hospital, London, UK. 2. Centre for Health Services and Clinical Research, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK. 3. Renal Unit, Lister Hospital, East & North Herts NHS Trust, Stevenage, UK. 4. Hertfordshire Partnership University NHS Foundation Trust, Rosanne House, Welwyn Garden City, UK. 5. Southend University Hospital NHS Foundation Trust, Essex, UK. 6. Department of Renal Medicine, Queen Elizabeth Hospital, Birmingham, UK. 7. Health Psychology Section, Psychology Department, King's College London, London, UK. 8. Department of Psychological Medicine, Weston Education Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Abstract
INTRODUCTION: Most patients take time to recover after a hemodialysis (HD) session. It has been suggested that recovery time is associated with intradialytic hypotension and rapid solute clearances. Other studies have reported a linkage to depression. We investigated the association between recovery time and intradialytic hypotension and depression. METHODS: In five UK HD units, we screened for depressive symptoms using the Beck depression inventory-II, Patient Health Questionnaire, and recorded sessional blood pressures and Kt/Vurea. FINDINGS: Seven hundred and one HD patients were studied; 63.6% male, mean age 64.1 ± 16.6 years, 33.5% diabetic. About 24.1% recovered in <1 hour, 27% 1-4 hours, 15.4% 4-8 hours, 10.7% 8-12 hours, and 22.8% after 12 hours. Systolic blood pressure fell by ≥20 mmHg in 30.9% postdialysis, and to <100 mmHg in 7.6%. In multivariate analysis, patients with recovery times >1 hour were more likely to be female, have high self-reported Beck depression inventory-II scores, a past medical history of depression, and be living without a partner. Longer recovery times were also associated with very low postdialysis systolic blood pressures (<100 mmHg), and higher body weight. However, the model predicted only 18% of the variation in recovery times. We found no association between recovery times and short-term mortality risk. DISCUSSION: Prolonged postdialysis recovery times are associated with higher self-reported depression scores, and very low postdialysis blood pressure. Future studies investigating changes in dialysis practice and recovery times will need to target strategies to prevent intradialytic hypotension and adjust for patient psychological status.
INTRODUCTION: Most patients take time to recover after a hemodialysis (HD) session. It has been suggested that recovery time is associated with intradialytic hypotension and rapid solute clearances. Other studies have reported a linkage to depression. We investigated the association between recovery time and intradialytic hypotension and depression. METHODS: In five UK HD units, we screened for depressive symptoms using the Beck depression inventory-II, Patient Health Questionnaire, and recorded sessional blood pressures and Kt/Vurea. FINDINGS: Seven hundred and one HD patients were studied; 63.6% male, mean age 64.1 ± 16.6 years, 33.5% diabetic. About 24.1% recovered in <1 hour, 27% 1-4 hours, 15.4% 4-8 hours, 10.7% 8-12 hours, and 22.8% after 12 hours. Systolic blood pressure fell by ≥20 mmHg in 30.9% postdialysis, and to <100 mmHg in 7.6%. In multivariate analysis, patients with recovery times >1 hour were more likely to be female, have high self-reported Beck depression inventory-II scores, a past medical history of depression, and be living without a partner. Longer recovery times were also associated with very low postdialysis systolic blood pressures (<100 mmHg), and higher body weight. However, the model predicted only 18% of the variation in recovery times. We found no association between recovery times and short-term mortality risk. DISCUSSION: Prolonged postdialysis recovery times are associated with higher self-reported depression scores, and very low postdialysis blood pressure. Future studies investigating changes in dialysis practice and recovery times will need to target strategies to prevent intradialytic hypotension and adjust for patient psychological status.
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