Dialysis symptom index burden and symptom clusters in a prospective cohort of dialysis patients

Amy S You, Sara S Kalantar, Keith C Norris, Rene Amel Peralta, Yoko Narasaki, Ronald Fischman, Michael Fischman, Avedik Semerjian, Tracy Nakata, Zahra Azadbadi, Danh V Nguyen, Kamyar Kalantar-Zadeh, Connie M Rhee, Amy S You, Sara S Kalantar, Keith C Norris, Rene Amel Peralta, Yoko Narasaki, Ronald Fischman, Michael Fischman, Avedik Semerjian, Tracy Nakata, Zahra Azadbadi, Danh V Nguyen, Kamyar Kalantar-Zadeh, Connie M Rhee

Abstract

Background: Dialysis patients experience a high symptom burden, which may adversely impact their quality of life. Whereas other specialties emphasize routine symptom assessment, symptom burden is not well-characterized in dialysis patients. We sought to examine the prevalence and severity of unpleasant symptoms in a prospective hemodialysis cohort.

Methods: Among 122 hemodialysis patients from the prospective Malnutrition, Diet, and Racial Disparities in Chronic Kidney Disease (CKD) study, CKD-associated symptoms were ascertained by the Dialysis Symptom Index, a validated survey assessing symptom burden/severity (with higher scores indicating greater symptom severity), over 6/2020-10/2020. We examined the presence of (1) individual symptoms and symptom severity scores, and (2) symptom clusters (defined as ≥ 2 related concurrent symptoms), as well as correlations with clinical characteristics.

Results: Symptom severity scores were higher among non-Hispanic White and Hispanic patients, whereas scores were lower in Black and Asian/Pacific Islander patients. In the overall cohort, the most common individual symptoms included feeling tired/lack of energy (71.3%), dry skin (61.5%), trouble falling asleep (44.3%), muscle cramps (42.6%), and itching (42.6%), with similar patterns observed across racial/ethnic groups. The most prevalent symptom clusters included feeling tired/lack of energy + trouble falling asleep (37.7%); trouble falling asleep + trouble staying asleep (34.4%); and feeling tired/lack of energy + trouble staying asleep (32.0%). Lower hemoglobin, iron stores, and dialysis adequacy correlated with higher individual and overall symptom severity scores.

Conclusion: We observed a high prevalence of unpleasant symptoms and symptom clusters in a diverse hemodialysis cohort. Further studies are needed to identify targeted therapies that ameliorate symptom burden in CKD.

Keywords: Dialysis; Symptom clusters; Unpleasant symptoms; Uremia.

Conflict of interest statement

The authors have no conflicts of interest to declare.

© 2022. The Author(s).

Figures

Fig. 1
Fig. 1
Prevalence of individual symptoms in the overall cohort
Fig. 2
Fig. 2
Prevalence of individual symptoms across racial/ethnic groups: Non-Hispanic White (A), Black (B), Hispanic White (C), and Asian/Pacific Islander (D)
Fig. 3
Fig. 3
Prevalence of individual symptom pairings within symptom clusters in the overall cohort

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Source: PubMed

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