Pelvic floor muscles after prostate radiation therapy: morpho-functional assessment by magnetic resonance imaging, surface electromyography and digital anal palpation
Int. braz. j. urol
;
47(1): 120-130, Jan.-Feb. 2021. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-1134327
ABSTRACT
ABSTRACT Aim:
To evaluate the radiotherapy (RT) effect in the pelvic floor muscles (PFM) function in men with prostate cancer (PC). Materials andMethods:
A cross-sectional study included three groups of patients with PC and RT indication 1) Pre-RT group evaluated before the beginning of RT; 2) Acute group evaluated between six months and one year after RT; 3) Late Group evaluated between two and a half years and four years post-RT. PFM assessment was divided into a) functional assessment through the digital anal palpation (Modified Oxford Scale) and surface electromyography (sEMG) with anal probe; b) anatomical assessment by pelvic magnetic resonance imaging (MRI) with thickness measurements of levator ani muscle and pelvic specific parameters at rest and under Valsalva maneuver. We used Student t test, considering as significant p <0.05.Results:
Thirty-three men were assessed Pre-RT (n=12); Acute (n=10) and Late (n=11) groups. PFM functional assessment showed Late group with lower electromyographic activity, especially in the sustained contractions when compared to the Pre-RT (p=0.003) and Acute groups (p=0.006). There was no significant difference between groups in MRI.Conclusion:
PFM functional assessment showed a decrease in sEMG activity in the Late group post-RT. Most of the sample (72.7%) did not know how to actively contract the PFM or had a weak voluntary contraction when assessed by digital anal palpation. Also, these patients presented higher prevalence of pelvic complaints. No changes were observed in the morpho-functional parameters evaluated by MRI, except the measurement of the membranous urethra length when comparing Pre-RT Group and Acute and Late Groups.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Próstata
/
Diafragma da Pelve
Tipo de estudo:
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
Limite:
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Int. braz. j. urol
Assunto da revista:
Urologia
Ano de publicação:
2021
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Centro Universitário Barão de Mauá/BR
/
Curso de Educação Física/BR
/
Universidade Federal de Uberlândia/BR
/
Universidade de São Paulo/BR
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