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Original Articles

Quality of blood samples collected at home does not affect clinical decision making for the administration of systemic cancer treatment

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Pages 215-221 | Received 31 Oct 2019, Accepted 26 Dec 2019, Published online: 13 Apr 2020
 

Abstract

The aim of this exploratory clinical study was to evaluate whether the preanalytical quality of blood samples subjected to delayed centrifugation and transport – as a result of home-sampling – is affected in a way it alters the clinical decision-making for patients under systemic cancer therapy. This evaluation is part of a comprehensive investigation of the opportunities for oncological home-hospitalization. Forty-nine patients with cancer donated two additional blood samples during their ambulatory hospital visit. Fifteen blood analytes were compared between routine blood samples and samples that were subjected to transport and delayed centrifugation in order to mimic a locally implemented model for oncological home-hospitalisation. Deviations were analysed by means of Deming regression. For those analytes showing statistically significant intercepts and/or slopes, the mean deviations were compared to the desirable analytical bias; and the intra-individual differences were compared with the limits for clinical decision-making. Statistically significant intercepts and/or slopes were observed for haematocrit (HCT), mean cellular volume (MCV), platelets count (PLT) and C-reactive protein (CRP). Differences exceeding the allowable margins of desirable analytical bias were observed for HCT and MCV. Risk of different clinical decision-making couldn’t be observed for any of the analytes showing statistically significant differences. These results demonstrate that home-collection of blood samples, transported at room temperature and centrifuged within a mean time of five hours after sampling, has no effect on clinical decision-making with regards to systemic cancer therapy. However, attention should be paid to the potential occurrence of haemolysis during the preanalytical phase, which can negatively influence haemolysis-dependent variables.

Acknowledgements

The authors want to thank all participants for their cooperation to this study.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by ‘Kom Op Tegen Kanker’ (Stand up to Cancer), the Flemish cancer society, [registration number: KOTK 0014089]; a non-profit organization stimulating innovative approaches to improve quality of life of cancer patients and their environment. The funders had no involvement in this study, nor in its publication.

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