Volume 36, Issue 4 e3287
RESEARCH ARTICLE

Influence of glucometric ‘dynamical’ variables on duodenal-jejunal bypass liner (DJBL) anthropometric and metabolic outcomes

Ana Colás

Ana Colás

Department of Internal Medicine, Hospital Universitario 12 de Octubre, Madrid, Spain

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Manuel Varela

Manuel Varela

Department of Internal Medicine, Hospital Universitario de Móstoles, Madrid, Spain

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Milos Mraz

Milos Mraz

Department of Diabetes, Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

Department of Medical Biochemistry and Laboratory Diagnostics, 1st Faculty of Medicine and General University Hospital, Charles University, Prague, Czech Republic

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Daniel Novak

Daniel Novak

Department of Cybernetics, Czech Technical University in Prague, Prague, Czech Republic

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David Cuesta-Frau

David Cuesta-Frau

Technological Institute of Informatics, Universitat Politècnica de València, Alcoi, Spain

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Luis Vigil

Luis Vigil

Department of Internal Medicine, Hospital Universitario de Móstoles, Madrid, Spain

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Marek Benes

Marek Benes

Hepatogastroenterology Department, Transplantation Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

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Terezie Pelikanova

Terezie Pelikanova

Department of Diabetes, Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

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Martin Haluzik

Martin Haluzik

Department of Diabetes, Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

Department of Medical Biochemistry and Laboratory Diagnostics, 1st Faculty of Medicine and General University Hospital, Charles University, Prague, Czech Republic

Laboratory of Experimental Diabetology, Experimental Medicine Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic

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Vaclav Burda

Vaclav Burda

Department of Cybernetics, Czech Technical University in Prague, Prague, Czech Republic

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Borja Vargas

Corresponding Author

Borja Vargas

Department of Internal Medicine, Hospital Universitario de Móstoles, Madrid, Spain

Correspondence

Borja Vargas, Department of Internal Medicine, Hospital Universitario de Móstoles, Calle Río Júcar s/n. 28935 Móstoles, Madrid, Spain.

Email: [email protected]

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First published: 09 January 2020
Citations: 3

Funding information: Research Center for Informatics, Grant/Award Number: CZ.02.1.01/0.0/0.0/16_019/0000765; Biomedical data acquisition, processing and visualization, Grant/Award Number: SGS19/171/OHK3/3T/13; MH CZ – DRO (“IKEM, IN 00023001”); RVO VFN64165

Abstract

Background

The endoscopically implanted duodenal-jejunal bypass liner (DJBL) is an attractive alternative to bariatric surgery for obese diabetic patients. This article aims to study dynamical aspects of the glycaemic profile that may influence DJBL effects.

Methods

Thirty patients underwent DJBL implantation and were followed for 10 months. Continuous glucose monitoring (CGM) was performed before implantation and at month 10. Dynamical variables from CGM were measured: coefficient of variation of glycaemia, mean amplitude of glycaemic excursions (MAGE), detrended fluctuation analysis (DFA), % of time with glycaemia under 6.1 mmol/L (TU6.1), area over 7.8 mmol/L (AO7.8) and time in range. We analysed the correlation between changes in both anthropometric (body mass index, BMI and waist circumference) and metabolic (fasting blood glucose, FBG and HbA1c) variables and dynamical CGM-derived metrics and searched for variables in the basal CGM that could predict successful outcomes.

Results

There was a poor correlation between anthropometric and metabolic outcomes. There was a strong correlation between anthropometric changes and changes in glycaemic tonic control (∆BMI-∆TU6.1: rho = − 0.67, P < .01) and between metabolic outcomes and glycaemic phasic control (∆FBG-∆AO7.8: r = .60, P < .01). Basal AO7.8 was a powerful predictor of successful metabolic outcome (0.85 in patients with AO7.8 above the median vs 0.31 in patients with AO7.8 below the median: Chi-squared = 5.67, P = .02).

Conclusions

In our population, anthropometric outcomes of DJBL correlate with improvement in tonic control of glycaemia, while metabolic outcomes correlate preferentially with improvement in phasic control. Assessment of basal phasic control may help in candidate profiling for DJBL implantation.

CONFLICT OF INTEREST

No competing financial interests exist.

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