The GesTIO protocol experience: safety of a standardized order set for subcutaneous insulin regimen in elderly hospitalized patients.

Backgrounds: In non-critical hospitalized patients with diabetes mellitus, guidelines suggest subcutaneous insulin therapy with basal-bolus regimen, even in old and vulnerable inpatients.

Aim: To evaluate safety, efficacy, and benefit on clinical management of the GesTIO protocol, a set of subcutaneous insulin administration rules, in old and vulnerable non-ICU inpatients.

Methods: Retrospective, observational study. Patients admitted to Geriatric Clinic of Padua were studied. 88 patients matched the inclusion criteria: type 2 diabetes or hospital-related hyperglycemia, ≥65 years, regular measurements of capillary glycemia, and basal-bolus subcutaneous insulin regimen managed by "GesTIO protocol" for five consecutive days.

Main Outcome Measures: ratio of patients with blood glucose (BG) <3.9 mmol/l; number of BG per patient in target range (5-11.1 mmol/l); daily mean BG; and calls to physicians for adjusting insulin therapy.

Results: Mean age was 82 ± 7 years. 9.1% patients experienced mild hypoglycaemia, and no severe hypoglycaemia was reported. The median number of BG per patients in target range increased from 2.0 ± 2 to 3.0 ± 2 (p < 0.001). The daily mean BG decreased from 11.06 ± 3.03 to 9.64 ± 2.58 mmol/l (-12.8%, p < 0.005). The mean number of calls to physicians per patient decreased from 0.83 to 0.45 (p < 0.05).

Conclusions: Treatment with GesTIO protocol allows a safe and effective treatment even in very old and vulnerable inpatients with a faster management insulin therapy.