Hypoglycemia-associated changes in the electroencephalogram in patients with type 1 diabetes and normal hypoglycemia awareness or unawareness
© 2015 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered..
Hypoglycemia is associated with increased activity in the low-frequency bands in the electroencephalogram (EEG). We investigated whether hypoglycemia awareness and unawareness are associated with different hypoglycemia-associated EEG changes in patients with type 1 diabetes. Twenty-four patients participated in the study: 10 with normal hypoglycemia awareness and 14 with hypoglycemia unawareness. The patients were studied at normoglycemia (5-6 mmol/L) and hypoglycemia (2.0-2.5 mmol/L), and during recovery (5-6 mmol/L) by hyperinsulinemic glucose clamp. During each 1-h period, EEG, cognitive function, and hypoglycemia symptom scores were recorded, and the counterregulatory hormonal response was measured. Quantitative EEG analysis showed that the absolute amplitude of the θ band and α-θ band up to doubled during hypoglycemia with no difference between the two groups. In the recovery period, the θ amplitude remained increased. Cognitive function declined equally during hypoglycemia in both groups and during recovery reaction time was still prolonged in a subset of tests. The aware group reported higher hypoglycemia symptom scores and had higher epinephrine and cortisol responses compared with the unaware group. In patients with type 1 diabetes, EEG changes and cognitive performance during hypoglycemia are not affected by awareness status during a single insulin-induced episode with hypoglycemia.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:64 |
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| Enthalten in: |
Diabetes - 64(2015), 5 vom: 09. Mai, Seite 1760-9 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sejling, Anne-Sophie [VerfasserIn] |
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| Anmerkungen: |
Date Completed 29.06.2015 Date Revised 09.04.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.2337/db14-1359 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM244416494 |
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| 520 | |a © 2015 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. | ||
| 520 | |a Hypoglycemia is associated with increased activity in the low-frequency bands in the electroencephalogram (EEG). We investigated whether hypoglycemia awareness and unawareness are associated with different hypoglycemia-associated EEG changes in patients with type 1 diabetes. Twenty-four patients participated in the study: 10 with normal hypoglycemia awareness and 14 with hypoglycemia unawareness. The patients were studied at normoglycemia (5-6 mmol/L) and hypoglycemia (2.0-2.5 mmol/L), and during recovery (5-6 mmol/L) by hyperinsulinemic glucose clamp. During each 1-h period, EEG, cognitive function, and hypoglycemia symptom scores were recorded, and the counterregulatory hormonal response was measured. Quantitative EEG analysis showed that the absolute amplitude of the θ band and α-θ band up to doubled during hypoglycemia with no difference between the two groups. In the recovery period, the θ amplitude remained increased. Cognitive function declined equally during hypoglycemia in both groups and during recovery reaction time was still prolonged in a subset of tests. The aware group reported higher hypoglycemia symptom scores and had higher epinephrine and cortisol responses compared with the unaware group. In patients with type 1 diabetes, EEG changes and cognitive performance during hypoglycemia are not affected by awareness status during a single insulin-induced episode with hypoglycemia | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Kjær, Troels W |e verfasserin |4 aut | |
| 700 | 1 | |a Pedersen-Bjergaard, Ulrik |e verfasserin |4 aut | |
| 700 | 1 | |a Diemar, Sarah S |e verfasserin |4 aut | |
| 700 | 1 | |a Frandsen, Christian S S |e verfasserin |4 aut | |
| 700 | 1 | |a Hilsted, Linda |e verfasserin |4 aut | |
| 700 | 1 | |a Faber, Jens |e verfasserin |4 aut | |
| 700 | 1 | |a Holst, Jens J |e verfasserin |4 aut | |
| 700 | 1 | |a Tarnow, Lise |e verfasserin |4 aut | |
| 700 | 1 | |a Nielsen, Martin N |e verfasserin |4 aut | |
| 700 | 1 | |a Remvig, Line S |e verfasserin |4 aut | |
| 700 | 1 | |a Thorsteinsson, Birger |e verfasserin |4 aut | |
| 700 | 1 | |a Juhl, Claus B |e verfasserin |4 aut | |
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