Abstract #1400698: Performance of a Computerized Insulin Infusion Protocol in 359 Critically Ill Patients with COVID-19

Abstract

People with diabetes and uncontrolled hyperglycemia are at high risk of COVID-19 complications and as such, many patients admitted to the ICU with COVID-19 have diabetes or stress hyperglycemia. It is suggested that quick and adequate control of hyperglycemia without increasing the risk of hypoglycemia is imperative to improve outcomes in these patients. Control of wide fluctuations of glycemic variances in these patients may often require modifications of existing strategies of glycemic management. Use of a computerized insulin infusion protocol (CIIP) in these settings could be largely beneficial in getting early and sustained glycemic control. We report our experience with the Lalani Insulin Infusion Protocol (LIIP), a novel CIIP with dynamic and adaptive glycemic targets in accordance with the patient’s glycemic state, in critically ill COVID-19 patients with hyperglycemia treated with IV insulin. We conducted a retrospective analysis of 359 critically-ill COVID-19 patients in whom LIIP was used (8/18/2020 to 08/31/2022) at six HonorHealth Hospitals in the Phoenix metropolitan area. Primary endpoints of the analysis included Time to Euglycemia (min), % of time in euglycemia (70-180 mg/dl), % of time in hyperglycemia (>180 mg/dl), and % of time in hypoglycemia (<70 mg/dl). We also report the average length of stay (ALOS) in the hospital and ICU as well as the discharge dispositions of these patients. Of the 359 critically ill COVID-19 patients who received IV insulin directed by LIIP, 167 patients had diabetes, 266 patients were treated with steroids, 226 patients had compromised renal function (eGFR< 60), 40 patients had sepsis, and 5 patients had cardiovascular comorbidities. The following glucometrics were observed: average Time to Euglycemia from baseline glucose values was 278 minutes, average % time in euglycemia was 83.01%, average % time in hyperglycemia was 16.77%, and average % time in hypoglycemia was 0.22%. Of the 359 patients, there were 166 deaths (46.2%), 91 patients were discharged to home (25.4%), and 102 patients were discharged to an interim facility (28.4%). The hospital ALOS was 15.02 days and ICU ALOS was 9.50 days. For HonorHealth hospitals, LIIP was a safe and effective method of quickly achieving and maintaining euglycemia in critically ill patients with COVID-19, while maintaining low hypoglycemia incidence. Herein the patients reported had varying degrees of comorbidities and treatments, including steroids and vasopressors; however, no modifications in glycemic management strategy or nursing workflow were necessary during the use of LIIP due to its adaptive formula which individualizes IV insulin rates for each patient.