Prevalence of frailty and cognitive impairment in older transplant candidates - a preview to the Kidney Transplantation in Older People (KTOP): impact of frailty on outcomes study.

Journal article


Thind, A. K., Rule, A., Goodall, D., Levy, S., Brice, S., Dor, F.J.M.F., Evans, N., Ospalla, D., Thomas, N., Wellsted, D., Johansson, L., Willicombe, M. and Brown, E.A. (2022). Prevalence of frailty and cognitive impairment in older transplant candidates - a preview to the Kidney Transplantation in Older People (KTOP): impact of frailty on outcomes study. BMC Nephrology. 23 (1), p. 283. https://doi.org/10.1186/s12882-022-02900-w
AuthorsThind, A. K., Rule, A., Goodall, D., Levy, S., Brice, S., Dor, F.J.M.F., Evans, N., Ospalla, D., Thomas, N., Wellsted, D., Johansson, L., Willicombe, M. and Brown, E.A.
AbstractKidney transplantation in older people has increased, however older transplant recipients experience mixed outcomes that invariably impacts on their quality of life. The increased vulnerability of older end stage kidney disease patients to frailty and cognitive impairment, may partially explain the differences in outcomes observed. The Kidney Transplantation in Older People (KTOP): impact of frailty on clinical outcomes study is an active clinical study aiming to explore the experience of older people waiting for and undergoing transplantation. In this manuscript we present the study protocol, the study cohort, and the prevalence of frailty and cognitive impairment identified at recruitment. The KTOP study is a single centre, prospective, mixed methods, observational study. Recruitment began in October 2019. All patients aged 60 or above either active on the deceased donor waitlist or undergoing live donor transplantation were eligible for recruitment. Recruited participants completed a series of questionnaires assessing frailty, cognition, and quality of life, which are repeated at defined time points whilst on the waitlist and post-transplant. Clinical data was concurrently collected. Any participants identified as frail or vulnerable were also eligible for enrolment into the qualitative sub-study. Two hundred eight participants have been recruited (age 60-78). Baseline Montreal Cognitive Assessments were available for 173 participants, with 63 (36.4%) participants identified as having scores below normal (score < 26). Edmonton Frail Scale assessments were available for 184 participants, with 29 participants (15.8%) identified as frail (score ≥ 8), and a further 37 participants (20.1%) identified as being vulnerable (score 6-7). In the KTOP study cohort we have identified a prevalence of 36.4% of participants with MoCA scores suggestive of cognitive impairment, and a prevalence of frailty of 15.8% at recruitment. A further 20.1% were vulnerable. As formal testing for cognition and frailty is not routinely incorporated into the work up of older people across many units, the presence and significance of these conditions is likely not known. Ultimately the KTOP study will report on how these parameters evolve over time and following a transplant, and describe their impact on quality of life and clinical outcomes. [Abstract copyright: © 2022. The Author(s).]
KeywordsCognition; Frailty; Prospective Studies; Aged; Cognitive Dysfunction - epidemiology; Prevalence; Quality of Life; Kidney transplantation; Older people; Kidney Transplantation; Humans; Frailty - diagnosis - epidemiology
Year2022
JournalBMC Nephrology
Journal citation23 (1), p. 283
PublisherBMC
ISSN1471-2369
Digital Object Identifier (DOI)https://doi.org/10.1186/s12882-022-02900-w
Publication dates
Online13 Aug 2022
Publication process dates
Deposited28 Jul 2022
Accepted22 Jul 2022
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