Evidence map›Paper›PMID 26243773›Full record

ArticleJournal of diabetes science and technology2015

Time Delay of CGM Sensors: Relevance, Causes, and Countermeasures.

Günther Schmelzeisen-Redeker, Michael Schoemaker, Harald Kirchsteiger, Guido Freckmann, Lutz Heinemann, Luigi Del Re

Open access · bronzeAbstract read
In one paragraph

Article in Journal of diabetes science and technology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
5.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 146 citations in OpenAlex.

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11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Günther Schmelzeisen-RedekerRoche Diabetes Care GmbH, Mannheim, Germany guenther.schmelzeisen-redeker@roche.com.
Michael SchoemakerRoche Diabetes Care GmbH, Mannheim, Germany.
Harald KirchsteigerInstitute for Design and Control of Mechatronical Systems, Johannes Kepler University, Linz, Austria.
Guido FreckmannInstitute for Diabetes-Technology GmbH at Ulm University, Germany.
Lutz HeinemannScience & Co, Düsseldorf, Germany.
Luigi Del ReInstitute for Design and Control of Mechatronical Systems, Johannes Kepler University, Linz, Austria.
Johannes Kepler University of Linz · ATGerman Center for Diabetes Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundContinuous glucose monitoring (CGM) is a powerful tool to support the optimization of glucose control of patients with diabetes. However, CGM systems measure glucose in interstitial fluid but not in blood. Rapid changes in one compartment are not accompanied by similar changes in the other, but follow with some delay. Such time delays hamper detection of, for example, hypoglycemic events. Our aim is to discuss the causes and extent of time delays and approaches to compensate for these.

methodsCGM data were obtained in a clinical study with 37 patients with a prototype glucose sensor. The study was divided into 5 phases over 2 years. In all, 8 patients participated in 2 phases separated by 8 months. A total number of 108 CGM data sets including raw signals were used for data analysis and were processed by statistical methods to obtain estimates of the time delay.

resultsOverall mean (SD) time delay of the raw signals with respect to blood glucose was 9.5 (3.7) min, median was 9 min (interquartile range 4 min). Analysis of time delays observed in the same patients separated by 8 months suggests a patient dependent delay. No significant correlation was observed between delay and anamnestic or anthropometric data. The use of a prediction algorithm reduced the delay by 4 minutes on average.

conclusionsPrediction algorithms should be used to provide real-time CGM readings more consistent with simultaneous measurements by SMBG. Patient specificity may play an important role in improving prediction quality.

Indexed as

AdultAlgorithmsBiosensing TechniquesBlood GlucoseBlood Glucose Self-MonitoringDiabetes Mellitus, Type 1FemaleHumansHypoglycemic AgentsInsulin Infusion SystemsMaleMiddle AgedTime FactorsYoung AdultBlood GlucoseHypoglycemic AgentsaccuracyCGMcontinuous glucose monitoringMARDperformance comparisonperformance evaluationprecisiontime delay

Identifiers

PMID26243773
PMCPMC4667340
OpenAlexW1695862053

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.