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Complications neurologiques périphériques après chirurgie bariatrique

Peripheral neurologic complications following bariatric surgery

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Résumé

Les neuropathies périphériques sont des complications rares mais potentiellement gravissimes de la chirurgie bariatrique, qui doivent être détectées le plus précocement possible, la récupération axonale semblant liée à la rapidité de leur prise en charge. Leur fréquence est estimée entre 0,08 et 16%, leur délai de survenue est compris entre 4 mois et 14 ans. Les tableaux cliniques décrits sont, par ordre de fréquence, une polyneuropathie sensitive subaigüe par carence vitaminique (en particulier vitamine B1, B12, cuivre et polycarentielle), et une mononeuropathie par compression canalaire consécutive à l’amaigrissement rapide, en particulier chez les sujets diabétiques. Des mécanismes inflammatoires et immunologiques pourraient également participer à cette complication. Les facteurs favorisants sont les troubles digestifs et l’absence de prise en charge nutritionnelle. Même si les interventions avec malabsorption sont, par définition, plus exposées, aucune chirurgie, même purement restrictive, ne semble épargnée. La prévention comprend bien sûr la supplémentation vitaminique, mais aussi l’éducation des patients à reconnaitre les signes d’alerte tels que les paresthésies, douleurs neurogènes et troubles de l’équilibre

Abstract

Peripheral neuropathy is a rare but potentially very serious complications of bariatric surgery, which must be detected as early as possible, the axonal recovery seems to depend of care delay. Their frequency is estimated between 0.08 and 16%, they occur from 4 months to 14 years after surgery. The presentations are, in order of frequency; peripheral polyneuropathy because of micro-nutriment deficiencies (particularly vitamin B1 and B12, copper, and multiple deficiencies), and mono-neuropathy because of nerve compression with major and rapid weight loss, especially in diabetic patients. There is evidence to suggest a role for inflammation or an immunologic mechanism in neuropathy. Risk factors included amount of weight loss, prolonged gastrointestinal symptoms and postoperative surgical complications requiring hospitalization, not attending a nutritional support. Prognosis seems to depend of care delay. Routine monitoring of micronutrient levels and prompt recognition of neurological complications can reduce morbidity associated with these procedures and patients need to recognize alert symptoms as paresthesia, pain, and dizziness.

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Correspondence to C. Ciangura.

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Ciangura, C., Lenglet, T. & Grégoire, C. Complications neurologiques périphériques après chirurgie bariatrique. Obes 9, 151–155 (2014). https://doi.org/10.1007/s11690-014-0420-2

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  • DOI: https://doi.org/10.1007/s11690-014-0420-2

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