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L'autosurveillance de la glycémie chez les diabétiques de type 2 est-elle toujours utile ?

 

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L'autosurveillance de la glycémie chez les diabétiques de type 2 est-elle toujours utile ?


Essai incluant 453 patients (65,7 ans ; HbA1c moyenne 7,5 %)
randomisés en 3 groupes
(1 - simple surveillance trimestrielle de HbA1c ;
2- idem 1 + autosurveillance et invite à consulter pour interprétation ;
3- idem 1 + autosurveillance et formation motivante à l'interprétation et à l'autocontrôle de la glycémie).


Résultats après 1 an : HbA1c ne diffère pas significativement entre les 3 groupes.


L'intérêt de l'autosurveillance n'est donc pas prouvé, même chez les patients formés à l'auto prise en charge de leur glycémie.


Farmer & Coll., British Medical Journal, 25 juin 2007 ; prépublication en ligne.


ARTICLES

Abstract

Objective To determine whether self monitoring, alone or with instruction in incorporating the results into self care, is more effective than usual care in improving glycaemic control in non-insulin treated patients with type 2 diabetes.
Design Three arm, open, parallel group randomised trial.

Setting 48 general practices in Oxfordshire and South Yorkshire.

Participants 453 patients with non-insulin treated type 2 diabetes (mean age 65.7 years) for a median duration of three years and a mean haemoglobin A1c level of 7.5%.

Interventions Standardised usual care with measurements of HbA1c every three months as the control group (n=152), blood glucose self monitoring with advice for patients to contact their doctor for interpretation of results, in addition to usual care (n=150), and blood glucose self monitoring with additional training of patients in interpretation and application of the results to enhance motivation and maintain adherence to a healthy lifestyle (n=151).

Main outcome measure HbA1c level measured at 12 months.

Results At 12 months the differences in HbA1c level between the three groups (adjusted for baseline HbA1c level) were not statistically significant (P=0.12). The difference in unadjusted mean change in HbA1c level from baseline to 12 months between the control and less intensive self monitoring groups was –0.14% (95% confidence interval –0.35% to 0.07%) and between the control and more intensive self monitoring groups was –0.17% (–0.37% to 0.03%).

Conclusions Evidence is not convincing of an effect of self monitoring blood glucose, with or without instruction in incorporating findings into self care, in improving glycaemic control compared with usual care in reasonably well controlled non-insulin treated patients with type 2 diabetes.

Trial registration Current Controlled Trials ISRCTN47464659 [controlled-trials.com] .
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