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Pelvic floor muscles after prostate radiation therapy: morpho-functional assessment by magnetic resonance imaging, surface electromyography and digital anal palpation
Ribeiro, Aline Moreira; Nammur, Larissa Guerra; Mateus-Vasconcelos, Elaine Cristine Lemes; Ferreira, Cristine Homsi Jorge; Muglia, Valdair Francisco; Oliveira, Harley Francisco de.
  • Ribeiro, Aline Moreira; Curso de Educação Física. Departamento de Ciências da Saúde. Campo Belo. BR
  • Nammur, Larissa Guerra; Universidade Federal de Uberlândia. Faculdade de Fisioterapia e Educação Física. Uberlândia. BR
  • Mateus-Vasconcelos, Elaine Cristine Lemes; Centro Universitário Barão de Mauá. Departamento de Fisioterapia. Ribeirão Preto. BR
  • Ferreira, Cristine Homsi Jorge; Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Biomecânica, Medicina e Reabilitação do Sistema Locomotor. Ribeirão Preto. BR
  • Muglia, Valdair Francisco; Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Clínica Médica. Ribeirão Preto. BR
  • Oliveira, Harley Francisco de; Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Clínica Médica. Ribeirão Preto. BR
Int. braz. j. urol ; 47(1): 120-130, Jan.-Feb. 2021. tab, graf
Article in English | 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 and

Methods:

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.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Prostate / Pelvic Floor Type of study: Observational study / Prevalence study / Risk factors Limits: Humans / Male Language: English Journal: Int. braz. j. urol Journal subject: Urology Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: 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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Full text: Available Index: LILACS (Americas) Main subject: Prostate / Pelvic Floor Type of study: Observational study / Prevalence study / Risk factors Limits: Humans / Male Language: English Journal: Int. braz. j. urol Journal subject: Urology Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Centro Universitário Barão de Mauá/BR / Curso de Educação Física/BR / Universidade Federal de Uberlândia/BR / Universidade de São Paulo/BR