Standardized 4D Transperineal Ultrasound Assessment of Urethrovesical Junction Mobility After Vaginal Laser Treatment for Stress Urinary Incontinence.
Standardized 4D Transperineal Ultrasound Assessment of Urethrovesical Junction Mobility After Vaginal Laser Treatment for Stress Urinary Incontinence: a Prospective Observational Cohort Study
This prospective single-center observational cohort study will assess changes in urethrovesical junction (UVJ) mobility and urethral morphology after vaginal Er:YAG laser treatment in 40 adult women with pure stress urinary incontinence (SUI) or stress-predominant mixed urinary incontinence.
Participants will independently choose self-paid laser treatment as routine clinical care before being offered study participation. Treatment comprises three sessions at 4-6-week intervals. Standardized 4D transperineal ultrasound and clinical assessments will be performed at baseline and 1, 3, and 6 months after the final session.
The primary outcome is change in craniocaudal UVJ mobility, measured in millimeters, from baseline to 1 month after the final session. Secondary outcomes include UVJ mobility at 3 and 6 months, UVJ position, mid-urethral morphology, patient-reported outcomes, cough stress test results, adverse events, and initiation of additional SUI treatment. Exploratory analyses will assess associations between ultrasound changes and clinical outcomes.
Visão geral do estudo
Status
Status
Condições
Condições
Tipo de estudo
Tipo de estudo
Inscrição (Estimado)
Inscrição
Contactos e Locais
Contato de estudo
Contato de estudo
- Nome: Jan Dvorak, M.D. Ph.D.
- Número de telefone: 00420224967577
- E-mail: jan.dvorak2@vfn.cz
Locais de estudo
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Prague, Tcheca, 142 00
- Recrutamento
- General University Hospital in Prague
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Contato:
- Jan Dvorak, M.D. Ph.D.
- Número de telefone: 00420224967425
- E-mail: jan.dvorak2@vfn.cz
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
Adult female patients attending the participating outpatient clinical site who have independently elected to undergo self-paid vaginal laser treatment as routine clinical care for pure stress urinary incontinence or stress-predominant mixed urinary incontinence. Patients must have urodynamically demonstrated stress urinary incontinence without detrusor overactivity. Patients will be screened consecutively during the recruitment period, and those meeting the eligibility criteria will be invited to participate.
Descrição
Inclusion Criteria:
- Female sex.
- Age 18 years or older.
- Pure stress urinary incontinence or stress-predominant mixed urinary incontinence. In women with mixed urinary incontinence, the stress component must be the dominant and most bothersome symptom.
- Urodynamically demonstrated stress urinary incontinence.
- Absence of detrusor overactivity on urodynamic testing.
- Independent decision to undergo self-paid vaginal laser treatment as routine clinical care, made before the offer of study participation.
- Ability to complete the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF).
- Ability to perform a technically acceptable Valsalva maneuver.
- Willingness to attend the scheduled follow-up visits.
- Written informed consent to study participation.
Exclusion Criteria:
- Predominant overactive bladder or predominant urgency urinary incontinence.
- Previous surgery for stress urinary incontinence.
- Previous vaginal laser treatment.
- Previous pelvic organ prolapse surgery.
- Pelvic Organ Prolapse Quantification (POP-Q) stage II or greater in any compartment.
- Current pessary use at enrollment.
- Active pelvic floor physiotherapy at enrollment.
- Previous pelvic radiotherapy.
- Pregnancy.
- Unexplained genital bleeding.
- Pelvic malignancy.
- Any other contraindication to vaginal laser treatment.
- Active urinary tract or vaginal infection. Enrollment and laser treatment will be deferred until the infection has resolved.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Modelos de observação: COHORT
- Perspectivas de Tempo: PROSPECTIVE
Número de grupos/coortes
Coortes e Intervenções
Grupo / CoorteGrupo / Coorte |
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Stress urinary incontinence
A prospective cohort of 40 women aged 18 years or older with urodynamically demonstrated pure stress urinary incontinence or stress-predominant mixed urinary incontinence, without detrusor overactivity. Participants independently choose vaginal laser treatment as routine clinical care before being offered study enrollment. Treatment comprises three non-ablative Er laser sessions (Fotona SP Dynamis Pro; IncontiLase, SMOOTH mode) at 4-6-week intervals. Standardized 4D transperineal ultrasound and clinical assessments are performed before the first session and at 1, 3, and 6 months after the final session. |
O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Change From in Craniocaudal Urethrovesical Junction Mobility
Prazo: Baseline (before the first laser session) and 1 month after the final laser session.
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Within-participant change in craniocaudal urethrovesical junction (UVJ) mobility, measured in millimeters using standardized 4D transperineal ultrasound. UVJ position is measured relative to a horizontal reference line through the posteroinferior margin of the pubic symphysis, with cranial positions coded as negative and caudal positions as positive. Mobility is calculated as UVJ position during maximal Valsalva minus UVJ position at rest. Change is calculated as mobility at 1 month after the final laser session minus baseline mobility. Negative values indicate reduced mobility. |
Baseline (before the first laser session) and 1 month after the final laser session.
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
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Change From Baseline in Craniocaudal Urethrovesical Junction Mobility at 3 and 6 Months After the Final Laser Session
Prazo: Baseline (before the first laser session) and 3 and 6 months after the final laser session.
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Within-participant change in craniocaudal urethrovesical junction (UVJ) mobility, measured in millimeters using standardized 4D transperineal ultrasound. Mobility is calculated as UVJ position during maximal Valsalva minus UVJ position at rest. Change is follow-up mobility minus baseline mobility, assessed separately at 3 and 6 months. Negative values indicate reduced mobility. |
Baseline (before the first laser session) and 3 and 6 months after the final laser session.
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Change From Baseline in Urethrovesical Junction Position at Rest
Prazo: Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Change in craniocaudal urethrovesical junction position at rest, measured in millimeters using 4D transperineal ultrasound relative to a horizontal line through the posteroinferior margin of the pubic symphysis. Cranial positions are negative and caudal positions positive. Change is follow-up position minus baseline position. |
Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Change From Baseline in Mid-Urethral Hypoechoic Cross-Sectional Area at Rest
Prazo: Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Change in the cross-sectional area of the hypoechoic mid-urethral region at rest, measured in square millimeters by manual tracing on 4D transperineal ultrasound. The measurement plane is perpendicular to the urethral axis at 50% of sonographic urethral length. Change is follow-up area minus baseline area. |
Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Change From Baseline in ICIQ-UI SF Total Score
Prazo: Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Change in the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) total score. Scores range from 0 to 21, with higher scores indicating greater urinary incontinence severity and impact. Change is follow-up score minus baseline score; negative values indicate improvement. |
Baseline (before the first laser session) and 1, 3, and 6 months after the final laser session.
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Patient Global Impression of Improvement Category
Prazo: 1, 3, and 6 months after the final laser session
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Distribution of responses on the Patient Global Impression of Improvement (PGI-I), a 7-point scale assessing perceived change in urinary incontinence compared with the pretreatment condition. Scores range from 1 (very much better) to 7 (very much worse), with 4 indicating no change. Lower scores indicate greater perceived improvement. |
1, 3, and 6 months after the final laser session
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Início do estudo
Conclusão Primária (Estimado)
Conclusão Primária
Conclusão do estudo (Estimado)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Doenças urogenitais
- Doenças Urogenitais Masculinas
- Doenças Urológicas
- Doenças Urogenitais Femininas
- Doenças urogenitais femininas e complicações na gravidez
- Distúrbios da micção
- Sintomas do Trato Urinário Inferior
- Manifestações Urológicas
- Incontinencia urinaria
- Condições Patológicas, Sinais e Sintomas
- Sinais e sintomas
- Incontinência Urinária, Estresse
Outros números de identificação do estudo
Outros números de identificação do estudo
- 6/5/2025
Plano para dados de participantes individuais (IPD)
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