التفاصيل البيبلوغرافية
| العنوان: |
Closed-loop glucose control in young people with type 1 diabetes during and after unannounced physical activity: a randomised controlled crossover trial. |
| المؤلفون: |
Dovc, Klemen, Macedoni, Maddalena, Bratina, Natasa, Lepej, Dusanka, Nimri, Revital, Atlas, Eran, Muller, Ido, Kordonouri, Olga, Biester, Torben, Danne, Thomas, Phillip, Moshe, Battelino, Tadej |
| المصدر: |
Diabetologia; Nov2017, Vol. 60 Issue 11, p2157-2167, 11p, 1 Diagram, 7 Charts, 2 Graphs |
| مستخلص: |
Aims/hypothesis: Hypoglycaemia during and after exercise remains a challenge. The present study evaluated the safety and efficacy of closed-loop insulin delivery during unannounced (to the closed-loop algorithm) afternoon physical activity and during the following night in young people with type 1 diabetes. Methods: A randomised, two-arm, open-label, in-hospital, crossover clinical trial was performed at a single site in Slovenia. The order was randomly determined using an automated web-based programme with randomly permuted blocks of four. Allocation assignment was not masked. Children and adolescents with type 1 diabetes who were experienced insulin pump users were eligible for the trial. During four separate in-hospital visits, the participants performed two unannounced exercise protocols: moderate intensity (55% of $$ \overset{\cdot }{V}{\mathrm{O}}_{2\max } $$ ) and moderate intensity with integrated high-intensity sprints (55/80% of $$ \overset{\cdot }{V}{\mathrm{O}}_{2\max } $$ ), using the same study device either for closed-loop or open-loop insulin delivery. We investigated glycaemic control during the exercise period and the following night. The closed-loop insulin delivery was applied from 15:00 h on the day of the exercise to 13:00 h on the following day. Results: Between 20 January and 16 June 2016, 20 eligible participants (9 female, mean age 14.2 ± 2.0 years, HbA 7.7 ± 0.6% [60.0 ± 6.6 mmol/mol]) were included in the trial and performed all trial-mandated activities. The median proportion of time spent in hypoglycaemia below 3.3 mmol/l was 0.00% for both treatment modalities ( p = 0.7910). Use of the closed-loop insulin delivery system increased the proportion of time spent within the target glucose range of 3.9-10 mmol/l when compared with open-loop delivery: 84.1% (interquartile range 70.0-85.5) vs 68.7% (59.0-77.7), respectively ( p = 0.0057), over the entire study period. This was achieved with significantly less insulin delivered via the closed-loop ( p = 0.0123). Conclusions/interpretation: Closed-loop insulin delivery was safe both during and after unannounced exercise protocols in the in-hospital environment, maintaining glucose values mostly within the target range without an increased risk of hypoglycaemia. Trial registration: NCT02657083 Funding: University Medical Centre Ljubljana, Slovenian National Research Agency, and ISPAD Research Fellowship [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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