Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Novel instrumented probe for measuring 3D pressure distribution along the vaginal canal

Texto completo
Autor(es):
Cacciari, Licia P. ; Passaro, Anice C. ; Amorim, Amanda C. ; Geuder, Manfred ; Sacco, Isabel C. N.
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF BIOMECHANICS; v. 58, p. 139-146, JUN 14 2017.
Citações Web of Science: 3
Resumo

We developed an intravaginal instrumented probe (covered with a 10 x 10 matrix of capacitive sensors) for assessing the three-dimensional (3D) spatiotemporal pressure profile of the vaginal canal. The pressure profile was compared to the pelvic floor (PF) digital assessment, and the reliability of the instrument and repeatability of the protocol was tested. We also tested its ability to characterize and differentiate two tasks: PF maximum contraction and Valsalva maneuver (maximum intra-abdominal effort with downward movement of the PF). Peak pressures were calculated for the total matrix, for three major sub-regions, and for 5 planes and 10 rings throughout the vaginal canal. Intraclass correlation coefficients indicated excellent inter- and intra-rater reliability and intra-trial repeatability for the total and medial areas, with moderate reliability for the cranial and caudal areas. There was a moderate correlation between peak pressure and PF digital palpation {[}Spearman's coefficient r = 0.55 (p < 0.001)]. Spatiotemporal profiles were completely different between tasks (2-way ANOVAs for repeated measures) with notably higher pressures (above 30 kPa) for the maximum contraction task compared to Valsalva (below 15 kPa). At maximum contraction, higher pressures occurred in the mid-antero-posterior zone, with earlier peak pressure onsets and more variable along the vaginal depth (from rings 3 to 10 caudal). During Valsalva, the highest pressures were observed in rings 4-6, with peak pressure onsets more synchronized between rings. With this protocol and novel instrument, we obtained a high resolution and highly reliable innovative 3D pressure distribution map of the PF capable of distinguishing vaginal sub-regions, planes, rings and tasks. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 13/13820-6 - Influência do treinamento perineal e do tipo de parto na distribuição multivetorial de cargas do assoalho pélvico feminino
Beneficiário:Licia Pazzoto Cacciari
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 15/19679-9 - Pelvic floor morphological changes after physiotherapy treatments for urinary incontinence as measured by transperienal Ultrasound
Beneficiário:Licia Pazzoto Cacciari
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 13/19610-3 - Análise da distribuição multivetorial de cargas do assoalho pélvico feminino em diferentes populações
Beneficiário:Isabel de Camargo Neves Sacco
Linha de fomento: Auxílio à Pesquisa - Regular