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Foot drop - an uncommon presentation of FOLFOX toxicity
Madureira, Tânia Sofia Mendonça; Magalhães, Joana; Vilas, Pedro Bento; Gosálbez, Beatriz; Furtado, Irene.
  • Madureira, Tânia Sofia Mendonça; University Hospital Center of Algarve, Medical Oncology Department. Faro. PT
  • Magalhães, Joana; University Hospital Center of Algarve, Medical Oncology Department. Faro. PT
  • Vilas, Pedro Bento; University Hospital Center of Algarve, Internal Medicine Departmen. Faro. PT
  • Gosálbez, Beatriz; University Hospital Center of Algarve, Medical Oncology Department. Faro. PT
  • Furtado, Irene; University Hospital Center of Algarve, Medical Oncology Department. Faro. PT
Rev. méd. Minas Gerais ; 32: 32406, 2022.
Article in English | LILACS | ID: biblio-1424997
RESUMO
A quimioterapia com FOLFOX (oxaliplatina, leucovorina e 5-fluorouracilo) é frequentemente utilizada em doentes com cancro colorretal. Os sais de platina são conhecidos por serem uma classe de quimioterápicos que comumente induzem neurotoxicidade periférica. Na toxicidade induzida pela oxaliplatina, os sintomas sensitivos são os mais frequentes. Neste artigo, apresentamos dois casos clínicos de pacientes com adenocarcinoma de cólon, ambos submetidos à quimioterapia com FOLFOX4, e que desenvolveram neurotoxicidade incomum, apresentando pendente após o terceiro ciclo de tratamento. Esta manifestação clínica pode ser explicada por dano axonal nos neurônios motores periféricos do nervo peroneal comum (fibular), que fornece inervação motora aos músculos do . A paralisia do nervo fibular causa fraqueza súbita nos músculos do , que parece ser temporária. Ambos os doentes recuperaram completamente do evento sem necessidade de ajustes no tratamento, nem introdução de medicamentos diferentes. A apresentação de pendente como toxicidade da quimioterapia ainda é pouco compreendida. Os casos relatados mostram o pendente como uma manifestação grave e incomum de neuropatia induzida por FOLFOX, que pode ser transitória, e não requer necessariamente intervenção específica.
ABSTRACT
Chemotherapy based on FOLFOX (oxaliplatin, leucovorin, and 5-fluorouracil) regimen is frequently used in colorectal cancer patients. Oxaliplatin and other platinum agents are known to be a class of chemotherapy drugs that commonly induce peripheral neurotoxicity. The most frequent oxaliplatin related neurotoxicity is sensitive symptoms. Here, we present two cases of patients with colon adenocarcinoma, both undergoing chemotherapy with FOLFOX4, who developed uncommon neurotoxicity, presenting with foot drop after the third treatment cycle. Foot drop may be explained by axonal damage of peripheral motor neurons of the common peroneal (fibular) nerve, which provides motor innervation to the foot muscles. Peroneal nerve palsy causes sudden weakness in the muscles of the foot that seems to be temporary. Both patients completely recovered from the event. There was no need for treatment adjustments, neither introduction of different drugs. Foot drop as chemotherapy toxicity is still poorly understood. The reported cases show foot drop as a severe and uncommon manifestation of FOLFOX-induced neuropathy, that might be transitory, and does not necessarily requires specific intervention.

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Full text: Available Index: LILACS (Americas) Main subject: Colonic Neoplasms / Drug-Related Side Effects and Adverse Reactions / Nerve Agents / Foot Limits: Humans Language: English Journal: Rev. méd. Minas Gerais Journal subject: Medicine Year: 2022 Type: Article Affiliation country: Portugal Institution/Affiliation country: University Hospital Center of Algarve, Internal Medicine Departmen/PT / University Hospital Center of Algarve, Medical Oncology Department/PT

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Full text: Available Index: LILACS (Americas) Main subject: Colonic Neoplasms / Drug-Related Side Effects and Adverse Reactions / Nerve Agents / Foot Limits: Humans Language: English Journal: Rev. méd. Minas Gerais Journal subject: Medicine Year: 2022 Type: Article Affiliation country: Portugal Institution/Affiliation country: University Hospital Center of Algarve, Internal Medicine Departmen/PT / University Hospital Center of Algarve, Medical Oncology Department/PT