Metaphoric medicine: A retrospective clinical audit of glycaemic outcomes associated with an analogy-based consultation framework for insulin-treated type 2 diabetes mellitus.
Omar Muhammad Hanif MH, Zakaria Zainal Fitri ZF, Wan Mohd Nasruddin Wan Nusairi WN, Mokhlis Muzawani M
Poor glycaemic control among patients with insulin-treated type 2 diabetes mellitus (T2DM) in Malaysia remains a major challenge despite increased insulin use. Patient education is limited by complex medical explanations and lack of standardised consultation protocols. Methods: We conducted a retrospective clinical audit of patients with T2DM attending a structured self-monitoring of blood glucose (SMBG) clinic from January to July 2023. Patients on insulin with glycated haemoglobin (HbA1c) levels of >8.5% were consecutively enrolled into a multicomponent care package comprising the Metaphoric Medicine Practical Roadmap for Insulin Management Essentials (M2-PRIME) consultation framework, an analogy-based educational tool employing the 'garbage and lorry' metaphor as well as structured 6-week follow-ups, SMBG review and insulin dose adjustment. The primary outcomes were changes in HbA1c and fasting blood sugar (FBS) levels at 6 months. Eighty-nine patients completed follow-up (mean age=57.2 years; women=57.5%). The mean baseline HbA1c and FBS levels were 11.88% (±1.84) and 12.54 mmol/L (±6.32), respectively. After 6 months, the HbA1c level decreased by 1.57% (95% CI=1.14, 2.00; P<0.001) and the FBS level by 3.32 mmol/L (95% CI=2.21, 4.44; P<0.001). The HbA1c and FBS levels improved in 63 (70.8%) and 59 (66.3%) patients, respectively. Consultations incorporating the M2-PRIME were associated with clinically meaningful pre-post reductions in HbA1c and FBS levels among poorly controlled insulin-treated T2DM cases. However, without a control group, the independent contribution of the M2-PRIME cannot be isolated from concurrent insulin intensification and structured follow-up. These findings are preliminary and hypothesis-generating. A prospective randomised controlled trial is warranted.