NCT04851938

Brief Summary

Pain and anxiety levels experienced during labour are important factors affecting mother and baby health. An indicator that affects these factors is the levels of hormones that special for birth in the mother's blood. The application of transcutaneous electrical nerve stimulation is a nonpharmacological method that midwives can apply and determining the effect on these factors will be a guide for the future applications. The research will be conducted between 20 March 2020 and 10 March 2021 at the Adana Seyhan State Hospital of the Ministry of Health of the Republic of Turkiye. The universe will be formed by the all pregnant women who are accepted to give birth to the birth room of the named hospital. The number of normal births in the relevant hospital in 2019 is 5979 per year. Power analysis was done with Gpower 3.1 for the number of samples. Báez-Suárez et al. Based on his study, the standard deviation of the pain scale was found as 1.48 and it was determined that at least 25 pregnant women per group with %5 error and %90 strength would be sufficient. It was planned to conduct a study with 28 pregnant women per group, with an increase in the sample size by %10, with the prospect of possible employment. One hundred and twelve pregnant women selected among pregnant women will be divided into 4 groups using a simple randomisation method and a random sequence will be created. Active transcuteneous electrical nerve stimulation at different doses will be applied to the two groups and the third group will be set as a placebo group. In the active phases of labour, active trancutaneous electrical nerve stimulation, which is adjusted to the first group of the pregnant women with a cervical aperture of at least 4 cm, modified biphasic asymmetric pulseand it was set to a pulse width of 100 μs and a frequency of 100 Hz (1). In the active transcutaneous electrical nerve stimulation second group, it emitted an asyymetric, balanced, biphasic square waveform at a mixed stimulating frequency that randomly varied between 80 and 100 Hz, and it had a pulse duration of 350 μs (2) will be applied for 30 minutes. Transcutaneous electrical nerve stimulation electrodes will be connected to the placebo group and 30 minutes will be waited without electric application. Transcutaneous electrical nerve stimulation electrodes will be connected to the control group and 30 minutes will be waited without electric application. Transcutaneous electrical nerve stimulation will be connected to the spinal cord in parallel with the levels of T10-L1 and S2-4 with two adhesive electrodes. Before and after transcutaneous electrical nerve stimulation application to pregnant women, hormon levels, visual analogue scale (VAS), pain assessment, state worry scale for anxiety assessment will be performed. Statistical Package for the Social Sciences 20.0 program will be used in the analysis of the data. Birth pain is one of the most common types of pain. Various studies have been conducted on whether or not birth pain can be effectively reduced with transcutaneous electrical nerve stimulation application. However, no study evaluating the effect of transcutaneous electrical nerve stimulation application at different frequencies during delivery as a placebo controlled and double blind experimental study in terms of perception of birth pain, anxiety, hormon levels such as endrophin, oxytocin and cortisol was not found. Therefore, this study will be conducted as a randomised controlled experimental study to evaluate the effect of transcutaneous electrical nerve stimulation on birth pain, endorphine level, anxiety and satisfaction during delivery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
112

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2020

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 20, 2020

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

April 10, 2021

Completed
11 days until next milestone

First Posted

Study publicly available on registry

April 21, 2021

Completed
29 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 20, 2021

Completed
12 days until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2021

Completed
Last Updated

April 21, 2021

Status Verified

April 1, 2021

Enrollment Period

1.2 years

First QC Date

April 10, 2021

Last Update Submit

April 14, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • pain perception and anxiety

    Pain and anxiety levels experienced during labour are important factors affecting mother and baby health. For pain perseption VAS scale was used. For anxiety state anxiety scale was used.

    30 minutes

Study Arms (4)

Active TENS 1 Group

ACTIVE COMPARATOR
Device: transcutaneous electrical nerve stimulation device

Active TENS 2 Group

ACTIVE COMPARATOR
Device: transcutaneous electrical nerve stimulation device

Placebo Group

PLACEBO COMPARATOR
Device: transcutaneous electrical nerve stimulation device

Control Group

SHAM COMPARATOR
Device: transcutaneous electrical nerve stimulation device

Interventions

The application of transcutaneous electrical nerve stimulation is a nonpharmacological method that midwives can apply and determining the effect on these factors will be a guide for the future applications.

Active TENS 1 GroupActive TENS 2 GroupControl GroupPlacebo Group

Eligibility Criteria

Age20 Years - 40 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • "week of pregnancy"
  • Who will give normal vaginal delivery
  • Dilatation of 4 cm and above
  • Single fetus and head presentation
  • Can speak Turkish and communicate
  • Agreeing to participate in the study
  • Not having risky pregnancy

You may not qualify if:

  • Application of induction
  • Using birth analgesia / anesthesia
  • With pacemakers
  • With skin damage in the area where TENS will be applied
  • With any skin disease
  • With contraction anomalies
  • With epilepsy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cukurova University

Adana, Sarıcam, 01330, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Anxiety DisordersPain

Condition Hierarchy (Ancestors)

Mental DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

Meltem Akbaş, Phd

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Health Sciences Faculty Midwifery Department

Study Record Dates

First Submitted

April 10, 2021

First Posted

April 21, 2021

Study Start

March 20, 2020

Primary Completion

May 20, 2021

Study Completion

June 1, 2021

Last Updated

April 21, 2021

Record last verified: 2021-04

Locations