Brainstem auditory pathway of children with acute lymphoid leukemia on chemotherapy with methotrexate

Author:

LEITE Renata Aparecida1ORCID,VOSGRAU Jéssica Sales1ORCID,CORTEZ NETO Leticia1ORCID,SANTOS Nayara Pereira1ORCID,MATAS Sandro Luiz de Andrade2ORCID,ODONE FILHO Vicente1,MATAS Carla Gentile1ORCID

Affiliation:

1. Universidade de São Paulo, Brazil

2. Universidade Federal de São Paulo, Brazil

Abstract

Abstract Objective: Investigate the auditory pathway in the brainstem of children with acute lymphoblastic leukemia submitted to chemotherapy (by intravenous or intrathecal infusion). Methods: Fourteen children aged between 2 and 12 years with diagnosis of acute lymphoid leukemia were evaluated. The following procedures were used: meatoscopy, acoustic immitance measurements, tonal audiometry, vocal audiometry, transient otoacoustic emissions, and auditory brainstem response. Results: From the 14 children with normal auditory thresholds, 35.71% showed an alteration in auditory brainstem response, with a predominance of hearing impairment in the lower brainstem. It was found that 80% of the children with alteration had used intrathecal methotrexate less than 30 days and that 40% had the highest cumulative intravenous methotrexate doses. Conclusion: Children with acute lymphoblastic leukemia submitted to chemotherapy, present auditory pathway impairment in the brainstem, with a predominance of a low brainstem.

Publisher

FapUNIFESP (SciELO)

Subject

Neurology,Clinical Neurology

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