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Coma Blisters, Peripheral Neuropathy, and Amitriptyline Overdose: A Brief Report

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Journal of Cutaneous Medicine and Surgery: Incorporating Medical and Surgical Dermatology

Background: Coma blisters are most commonly associated with barbiturate and benzodiazepine overdose; however, they have also been described in association with many other substances, including amitriptyline. Objective: To review the literature on the clinical manifestations of coma blisters in the setting of amitriptyline overdose. Methods: Case report and literature review. Results: Coma blisters in association with amitriptyline overdose have rarely been documented in the literature. Of the few reported cases, peripheral neuropathy has been present two (including our case report) out of four times. Conclusion: Amitriptyline is known to impair endothelial cell tight junction integrity. Thus, individuals with amitriptyline overdose may be predisposed to microvascular damage during the compression imposed from a comatose state. This may help to explain the tendency for patients to present with the interesting triad of coma, blisters, and neuropathy. Antécédents: Les cloques qui apparaissent durant le coma sont souvent associées à une overdose de barbiturique ou de benzodiazépine, mais peuvent être liées également à beaucoup d'autres substances, notamment l'amitriptyline. Objectif: Passer en revue les publications sur la manifestation clinique des cloques en presence d'une overdose d'amitriptyline. Méthodes: Étude de cas et examen des publications. Résultats: Les publications scientifiques traitent rarement des cloques apparaissant durant le coma qui sont liées à une overdose d'amitriptyline. Parmi les quelques cas rapportés, deux fois sur quatre (dont notre rapport de cas), il y avait présence de neuropathic périphérique. Conclusion: L'amitriptyline est connue pour endommager l'intégrité des jonctions serréses des cellules endothéliales. Par conséquent, les personnes ayant reçu une overdose d'amitriptyline seraient sujettes aux affections microvasculaires durant la compression produite par leur etat comateux. Cela pourra aider à expliquer la tendance chez

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Maguiness, S., Guenther, L. & Shum, D. Coma Blisters, Peripheral Neuropathy, and Amitriptyline Overdose: A Brief Report . JCMS 6, 438–441 (2002). https://doi.org/10.1007/s10227-001-0132-8

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  • DOI: https://doi.org/10.1007/s10227-001-0132-8

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