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Analgesia in the Second Stage of Labour

Analgesia in the Second Stage of Labour - With Special Focus on Pudendal Block

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04391075
Acronym
ASL
Enrollment
1007
Registered
2020-05-18
Start date
2017-01-01
Completion date
2019-05-31
Last updated
2020-05-19

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

Conditions

Childbirth Experience, Pain, Obstetric, Satisfaction, Personal, Urinary Retention

Keywords

Pudendal nerve block, Urine and urination, Anesthetics, Peripheral nervous system agents

Brief summary

This study investigates efficacy, safety and childbirth experience in women receiving pudendal block during the final stage of delivery. It is an observational study and half of included primarous women recieve a pudendal block.

Detailed description

Pudendal block is used when there is a need to alleviate pain in the final stage of labour: * From fully dilated cervix to delivery of the child. * Associated with pain as the foetus rotates and descends through the pelvis. * End of second stage: the perineum dilates as the child is being born. Pudendal block is provided by inserting a needle close to the pudendal nerve that runs through the pelvis and innervates the perineal area.Pudendal block is an old and relatively simple method, but not well studied. The main aim is to study pudendal nerve block as pain relief in final stage of labour for primiparous women delivering vaginally. The investigators aim to investigate whether possible adverse effects may outweigh the positive analgesic effect in the final stage of labour, or the opposite. The ASL (Analgesia in the Second stage of Labour) study may fill knowledge gaps and add important knowledge regarding pain relief during the final stage of childbirth.

Interventions

Pudendal nerve block provided during last fase of delivery

Sponsors

Oslo University Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Norwegian-speaking/reading * Primiparity * Single pregnancy * Vaginal birth * Cephalic presentation * ≥37+0 * Age ≥18 years

Exclusion criteria

* Transferre from midwifery-led birth unit * Allergy to local anaesthesia * Not valid data on pudendal block

Design outcomes

Primary

MeasureTime frameDescription
Childbirth experienceResponds to questionnaire 4-12 weeks after delivery.Childbirth experience questionnaire (CEQ), total score on a scale from 1.0 to 4.0. Higher score means better experience.
Urinary retention3 hoursUrinary retention after delivery defined as inability to void and need for catheterization within 3 hours.

Secondary

MeasureTime frameDescription
Pain, obstetricResponds to questionnaire 4-12 weeks after delivery.Measured by Visual Analog Scale (VAS). Scale from 0 to 100, higher scpre means more pain.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026