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. 2024 Mar;54(3):430-437.
doi: 10.1111/imj.16124. Epub 2023 Jun 5.

Reporting hypoglycaemia as a hospital-acquired complication: assessing biochemical and clinical validity

Joanna F M Dharma  1   2 , Christine Polmear  1 , Spiros Fourlanos  2   3   4 , Mervyn Kyi  1   2   3   4
Affiliations

Reporting hypoglycaemia as a hospital-acquired complication: assessing biochemical and clinical validity

Joanna F M Dharma et al. Intern Med J. 2024 Mar.

Abstract

Background and aims: Given treatment-related hypoglycaemia in hospitals can lead to adverse outcomes, the Australian Commission on Safety and Quality in Health Care has included hypoglycaemia as a reportable hospital-acquired complication (HAC) with financial disincentives. However, the designation of a hypoglycaemia HAC relies on clinical coding without a defined glucose threshold or clinical context. We assessed the biochemical validity and clinical relevance of a hypoglycaemia HAC.

Methods: We performed a retrospective review on patients discharged from the Northern Health hospitals between March and August 2021 who were designated as experiencing a hypoglycaemia HAC. We assessed cases for biochemical validity (glucose <4.0 mmol), clinical context and whether they were treatment-related (treatment with insulin or sulphonylurea). We then compared this cohort with a hospital-wide glucometric survey based on a point-prevalence study to determine the proportion of individuals with hypoglycaemic events that were designated as hypoglycaemia HAC.

Results: Two hundred fifty-six admissions were coded as hypoglycaemia HAC. Eleven (4%) did not have a biochemically valid episode. Of the valid cases, 34 (14%) were not treated with any glucose-lowering medication and 11 (4%) were treated with noninsulin, nonsulphonylurea glucose-lowering medication. Two hundred admissions (78%) were considered treatment-related HAC. Of 139 individuals with diabetes identified in the hospital-wide point-prevalence study, 25 (18%) had biochemical evidence for hypoglycaemia: 22 were treatment-related, of which 68% were not coded as HAC.

Conclusion: Given safety and cost implications, the designation of hypoglycaemia HAC requires a standardised definition incorporating a biochemical threshold and clinical context. We propose a clinically relevant definition of hypoglycaemia HAC to promote safe diabetes care.

Keywords: HAC; diabetes; hospital-acquired complication; hypoglycaemia; inpatient.

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