Article (Scientific journals)
Risk and Reward: Extending stochastic glycaemic control intervals to reduce workload
Uyttendaele, Vincent; Knopp, Jennifer L.; Shaw, Geoffrey M. et al.
2020In BioMedical Engineering OnLine, 19
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Keywords :
Glycaemic Control; Hyperglycaemia; Blood Glucose; Insulin Therapy; Insulin Sensitivity; Insulin Resistance; Workload; Trade-off; Hypoglycaemia
Abstract :
[en] Background STAR is a model-based, personalised, risk-based dosing approach for glycaemic control (GC) in critically ill patients. STAR provides safe, effective control to nearly all patients, using 1-3 hourly measurement and intervention intervals. However, the average 11-12 measurements per day required can be a clinical burden in many intensive care units. This study aims to significantly reduce workload by extending STAR 1-3 hourly intervals to 1 to 4-, 5-, and 6- hourly intervals, and evaluate the impact of these longer intervals on GC safety and efficacy, using validated in silico virtual patients and trials methods. A Standard STAR approach was used which allowed more hyperglycaemia over extended intervals, and a STAR Upper Limit Controlled approach limited nutrition to mitigate hyperglycaemia over longer intervention intervals. Results Extending STAR from 1-3 hourly to 1-6 hourly provided high safety and efficacy for nearly all patients in both approaches. For STAR Standard, virtual trial results showed lower % blood glucose (BG) in the safe 4.4-8.0 mmol/L target band (from 83% to 80%) as treatment intervals increased. Longer intervals resulted in increased risks of hyper- (15% to 18% BG > 8.0 mmol/L) and hypo- (2.1% to 2.8% of patients with min. BG < 2.2 mmol/L) glycaemia. These results were achieved with slightly reduced insulin (3.2 [2.0 5.0] to 2.5 [1.5 3.0] U/h) and nutrition (100 [85 100] to 90 [75 100] % goal feed) rates, but most importantly, with significantly reduced workload (12 to 8 measurements per day). The STAR Upper Limit Controlled approach mitigated hyperglycaemia and had lower insulin and significantly lower nutrition administration rates. Conclusions The modest increased risk of hyper- and hypo- glycaemia, and the reduction in nutrition delivery associated with longer treatment intervals represent a significant risk and reward trade-off in GC. However, STAR still provided highly safe, effective control for nearly all patients regardless of treatment intervals and approach, showing this unique risk-based dosing approach, modulating both insulin and nutrition, to be robust in its design. Clinical pilot trials using STAR with different measurement timeframes should be undertaken to confirm these results clinically.
Research center :
GIGA - In silico Medicine
Disciplines :
Human health sciences: Multidisciplinary, general & others
Engineering, computing & technology: Multidisciplinary, general & others
Anesthesia & intensive care
Author, co-author :
Uyttendaele, Vincent ;  Université de Liège - ULiège > In silico-Model-based therapeutics, Critical Care Basic Sc.
Knopp, Jennifer L.
Shaw, Geoffrey M.
Desaive, Thomas  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Thermodynamique des phénomènes irréversibles
Chase, J. Geoffrey
Language :
English
Title :
Risk and Reward: Extending stochastic glycaemic control intervals to reduce workload
Publication date :
April 2020
Journal title :
BioMedical Engineering OnLine
eISSN :
1475-925X
Publisher :
BioMed Central, United Kingdom
Volume :
19
Peer reviewed :
Peer Reviewed verified by ORBi
Additional URL :
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
EUFP7
NZ National Challenge 7 - Science for Technology and Innovation
MedTech Centre for Research Expertise (NZ)
Commentary :
Full open access article at https://rdcu.be/b3SFa
Available on ORBi :
since 30 April 2020

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