Best practices for iatrogenic anaemia prevention in the intensive care unit: Blood-sparing techniques

Anaemia is a common issue in patients who are admitted to intensive care units and worsens their condition throughout the stay due to the extraction of blood for diagnostic purposes. It is also well-known that an important amount of the carbon dioxide produced by health services is likely attributable to blood donation, testing and manufacture, storage or distribution of blood components. This must be taken into account to perform nursing interventions consistent with the idea of sustainable health care. In this regard, within patient blood management bundles, with the objective of minimizing the use of blood products, it is recommended to use blood-sparing techniques: small volume tubes (SVT) or closed-blood sampling devices (CBSD). Published studies before 2014 (excepting two more recent ones) have shown that by themselves, both techniques reduce drawn volume but do not decrease haemoglobin reduction and/or need of transfusion. Given the lack of cost-effectiveness studies, it may be easier to implement the use of CBSD as it does not require prior consensus on the discard volume or adaptations in the processing of laboratory tests, as is the case with SVT.

Impact of a collaborative childhood anaemia intervention programme in Peru

OBJECTIVES

To evaluate the impact of a 12-month multi-modal public health intervention programme for treating and preventing anaemia among children aged 6 months to 4 years in an underserved community in Peru.

METHODS

The intervention included nutritional education, use of a Lucky Iron Fish^® cooking tool, and dietary supplementation. The primary outcome measure was anaemia resolution. Secondary outcomes included absolute changes in haemoglobin, change in knowledge survey scores and adherence to interventions. Chi-square test and Mann-Whitney U-test were employed to identify associations between anaemia and intervention-related measures. Variables found to be significantly associated in bivariate analysis or of clinical importance were included in a logistic regression model.

RESULTS

Of the 406 children enrolled, 256 (63.1%) completed the programme. Of those, 34.0% had anaemia at baseline; this decreased to 13.0% over 12 months. The mean haemoglobin for all ages at baseline was 11.3 g/dL (SD 0.9). At 12 months, the mean was 11.9 g/dL (SD 0.8), with a mean increase of 0.5 g/dL (95% CI 0.4-0.6). Children with anaemia at baseline saw an increase of 1.19 g/dL at the 12-month follow-up (95% CI 1.12-1.37). Parents correctly answered 79.0% of knowledge assessment questions at baseline, which increased to 86.6% at 12 months.

CONCLUSIONS

We observed a reduction in the prevalence of mild to moderate anaemia among study participants in this vulnerable population and conclude that multi-modal intervention programmes providing nutrition education in conjunction with low-cost iron supplementation and easy-to-use Lucky Iron Fish^® cooking tools may reduce and prevent anaemia in children.