Response to Nocturnal Alarms Using a Real-Time Glucose Sensor
| Autor: | Andrea Kalajian, Peter Chase, Bruce A. Buckingham, Craig Kollman, Jen Block, Jonathan Burdick, Michael Choy, Darrell M. Wilson |
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| Rok vydání: | 2005 |
| Předmět: |
Blood Glucose
Male medicine.medical_specialty Adolescent Endocrinology Diabetes and Metabolism Monitoring ambulatory Monitoring Ambulatory Nocturnal Audiology Sensitivity and Specificity Article ALARM Endocrinology medicine Humans Child Monitoring Physiologic business.industry Reproducibility of Results Surgery Medical Laboratory Technology Equipment failure Diabetes Mellitus Type 1 Child Preschool Calibration Equipment Failure Female business |
| Zdroj: | Diabetes Technology & Therapeutics. 7:440-447 |
| ISSN: | 1557-8593 1520-9156 |
| Popis: | The objective of this study was to determine how subjects responded to alarms for hypo- and hyperglycemia while they were sleeping.Twenty subjects with type 1 diabetes (4-17 years old) were admitted to a clinical research center for approximately 24 h. Each subject wore two GlucoWatch G2 Biographers (GW2B) (Cygnus, Inc., Redwood City, CA) and was videotaped using an infrared camera from 9 p.m. to 7 a.m. The videotapes were reviewed to determine if the GW2B alarms were audible on the tape and to document the subject's response to the alarms. Because many alarms can occur surrounding a change in blood glucose, GW2B alarm "events" are defined as a one or more alarms separated from previous alarms by more than 30 min.Downloaded data from the biographers identified 240 individual alarms, 75% of which occurred while the subject was sleeping. Of the 240 alarms 68% were audible on the videotape. Subjects awoke to 29% of individual alarms and to 66% of alarm events. Subjects 4-6 years old responded to 17% of alarms, 7-11 year olds responded to 20% of alarms, adolescents responded to 53% of alarms, and parents responded to 37% of alarms. Subjects awoke to 40% of the first alarm during the night, but to only 28% of subsequent alarms. There were 11 events when the glucose was confirmed to beor = 70 mg/dL, and in each case the subject was awoken. Fifty-five percent of alarm events occurred when there was no hypo- or hyperglycemia confirmed by a reference glucose value.Subjects awoke to 29% of individual alarms and to 66% of alarm events. Subjects awoke during all alarm events when hypoglycemia was confirmed, but there was a high incidence of false alarms. |
| Databáze: | OpenAIRE |
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