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INTRAPARTUM TRANSPERINEAL ULTRASOUND MEASUREMENT OF HEAD-PERINEUM DISTANCE

INTRAPARTUM TRANSPERINEAL ULTRASOUND MEASUREMENT OF HEAD-PERINEUM DISTANCE TO PREDICT DELIVERY-RELATED MATERNAL OUTCOMES: A PROSPECTIVE COHORT STUDY

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07736183
Enrollment
70
Registered
2026-07-30
Start date
2024-06-01
Completion date
2025-09-01
Last updated
2026-07-30

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

Conditions

Episiotomy, Transperineal Ultrasound

Keywords

transperineal ultrasound, delivery, ultrasound, intrapartum, episiotomy

Brief summary

Intrapartum ultrasonography has been used as a current alternative method to vaginal examination. In this study, the role of head-perineum distance (HPD) measured by transperineal ultrasonography (TPU) at the beginning of the active phase in predicting maternal outcomes related to delivery was investigated and compared with simultaneous vaginal examination.

Interventions

None listed

Sponsors

Gaziosmanpasa Research and Education Hospital
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

Patients aged 18 and over, with full-term, primiparous, cephalic presentation fetus, singleton pregnancy, and active labor initiation. -

Exclusion criteria

Patients with a body mass index of 30 or higher, those who have undergone median episiotomy, those under 18 or over 40 years of age; those with malpresentation, placental placement anomalies, cord prolapse, twin pregnancy; and those with pregnancy-related or pre-existing hemorrhoidal diseases, anal fissures, abscesses, fistulas, rectal prolapse, and anal incontinence are not suitable candidates. -

Design outcomes

Primary

MeasureTime frameDescription
Association between head-perineum distance (HPD) measured by transperineal ultrasound and maternal outcomesOnset of active labor - 1st week postpartumwe investigated the association between HPD measured at the onset of the active phase of labour and delivery-related maternal outcomes, with a primary focus on perineal trauma. As secondary objectives, we explored the relationships of HPD with contemporaneous VE findings, mode of delivery, induction of labour, sociocultural indicators and other maternal complications. We hypothesized that HPD at active phase onset is significantly associated with delivery-related maternal outcomes.

Secondary

MeasureTime frameDescription
Mode of delivery (vaginal delivery vs cesarean section)during laborA correlation was investigated between the head-perineal distance measured at the onset of active labor and the mode of delivery. The study concluded that an increased head-perineal distance was associated with an increased likelihood of cesarean delivery.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 31, 2026