Prevalence and Impact of Occult Obstetric Anal Sphincter Injury Among Postpartum Thai Women

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20260507009

Enrollment

Registered

2026-05-07

Start date

2026-05-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Occult Obstetric Anal Sphincter Injury Occult Obstetric Anal Sphincter Injury

Interventions

All eligible participant

Screening

All participant

Eligibility

Sex/Gender

Female

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Age > 18 years old - Delivered vaginally, time since the most recent childbirth 6 weeks to 6 months - No current or previous history of OASI

Exclusion criteria

Exclusion criteria: - Cannot communicate in Thai - Severe perineal pain or discomfort

Design outcomes

Primary

Measure	Time frame
Occult OASI At enrollment TPUS	—

Secondary

Measure	Time frame
Other TPUS parameters At enrollment TPUS,POP-Q At enrollment Examination,Pelvic floor muscle strength At enrollment Modified Oxford scale,Prolapse, urinary, and bowel symptoms At enrollment PFDI-20 questionnaire,Postpartum depression At enrollment EPDS questionnaire	—

Countries

Thailand

Contacts

Public ContactApiwat Jongjakapun

Faculty of Medicine, Chulalongkorn University

apiwjo@kku.ac.th022564163

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026