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. 2018 Aug;11(4):555-558.
doi: 10.1093/ckj/sfx139. Epub 2017 Dec 19.

Hand grip strength measurement in haemodialysis patients: before or after the session?

Pierre Delanaye  1 , Kevin Quinonez  1 , Fanny Buckinx  2 , Jean-Marie Krzesinski  1 , Olivier Bruyère  2
Affiliations

Hand grip strength measurement in haemodialysis patients: before or after the session?

Pierre Delanaye et al. Clin Kidney J. 2018 Aug.

Abstract

Background: Hand grip strength (HGS) is a key measurement in the assessment of frailty phenotype in haemodialysis patients. However, the measurement is not very standardized, and notably, current data on the potential impact of a haemodialysis session on the results are both limited and controversial. In the present analysis, we compared HGS results before and after a haemodialysis session in 101 patients.

Methods: In the current observational study, HGS has been measured in adult haemodialysis patients on the same day, first before connection to the dialysis machine and then just after disconnection. At each timing, measurements were repeated three times with an interval of 5 s between measurements and the higher value was used for analysis.

Results: One hundred and one patients (64% men) with a median (interquartile range, 25th percentile; 75th percentile) age of 66 (46; 76) years were included. In the whole population, a significant decline in HGS was observed after dialysis, with an absolute median decline of - 4 (0; -6) kg and a relative median difference of -11 (0; -20)%. These differences were observed in both genders and were independent of the baseline HGS value.

Conclusions: Our results suggest that the timing (before or after the dialysis session) of hand grip assessment is clinically relevant and should be taken into account in clinical practice and also in epidemiological and clinical studies.

Keywords: chronic haemodialysis; elderly; frailty; hand grip strength.

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