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Surdez súbita e oxigenoterapia hiperbárica

Authors: Rodrigues, Pedro Afonso da Mata;

Surdez súbita e oxigenoterapia hiperbárica

Abstract

Este trabalho tem como objectivo abordar o tema da surdez súbita (SS) destacando a Oxigenoterapia Hiperbarica (OHB) como modalidade de tratamento, através de uma revisão sistemática da literatura científica actualizada. A SS é definida como uma perda de audição neurosensorial superior a 30 dB, em três frequências consecutivas, com instalação até 72 horas. A etiologia é desconhecida na grande maioria dos casos, havendo algumas teorias que a procuram explicar. O tratamento da surdez súbita é ainda pouco consensual, sendo os corticósteroides os agentes mais comummente utilizados na prática clínica. A OHB é uma terapêutica promissora, que tem sido alvo de vários estudos para tentar demonstrar os seus benefícios, no entanto, ainda não estão totalmente comprovados. É importante compreender melhor a fisiopatologia da SS e da OHB para melhorar a qualidade dos cuidados. A OHB permite aumentar a tensão de oxigénio na cóclea e reduz a resposta inflamatória local. Vários autores destacam os benefícios da OHB como terapia adjuvante e de resgate. A OHB deve ser considerada para doentes que não recuperaram a audição após tratamento convencional inicial pois confere um efeito terapêutico adicional substancialmente significativo após uma terapêutica inicial com corticósteroides.

This review addresses sudden deafness (SS) highlighting Hyperbaric Oxygen Therapy (HBO) as a treatment, through a systematic review of updated scientific literature. SS is defined as a sensorineural hearing loss greater than 30 dB, in three consecutive frequencies, with installation up to 72 hours. The etiology is unknown in the vast majority of cases but there are some theories that try to explain it. The treatment of sudden deafness is still debatable, but corticosteroids are the most commonly used agents in clinical practice. HBOT is a promising therapy that has been the subject of several studies that try to demonstrate its benefits, however, they are not yet proven. It is important to better understand the pathophysiology of SS and HBO to improve the quality of care. HBO increases the oxygen tension in the cochlea and reduces the local inflammatory response. Several authors highlight the benefits of HBO as adjuvant and rescue therapy. OHB should be considered for patients who have not recovered from hearing after initial conventional treatment as it provides a substantial additional therapeutic effect after initial corticosteroid therapy.

Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2017

Country
Portugal
Related Organizations
Keywords

Otorrinolaringologia, Domínio/Área Científica::Ciências Médicas, Terapêutica de resgate, Terapêutica adjuvante, Surdez súbita, Oxigenoterapia hiperbárica

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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