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临床试验/NCT07480083
NCT07480083尚未招募不适用

Effectiveness of Low-Level Laser Therapy Compared to Sham Treatment on Pain Intensity and Perineal Wound Healing Quality in the Immediate Postpartum Period: A Randomized Clinical Trial

Instituto Materno Infantil Prof. Fernando Figueira1 个研究点 分布在 1 个国家目标入组 206 人开始时间: 2026年4月1日最近更新:
干预措施

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
206
试验地点
1
主要终点
Perineal pain intensity (VAS) (immediate)

研究概览

简要总结

This randomized clinical trial aims to evaluate the effectiveness of low-level laser therapy compared with sham treatment on pain intensity and perineal wound healing quality in the immediate postpartum period. The study seeks to determine whether low-level laser therapy can reduce perineal pain and improve healing outcomes in women with perineal trauma after vaginal birth.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Triple (Participant, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
Female
接受健康志愿者

入选标准

  • Postpartum women/multiparous women aged 18 years or older;
  • Postpartum women/multiparous women in the immediate postpartum period after vaginal birth;
  • Postpartum women/multiparous women with spontaneous perineal laceration (Grade II, III, or IV);
  • Postpartum women/multiparous women with an average pain score of at least 3 on the Visual Analog Scale (VAS);
  • Labor duration up to 18 hours.

排除标准

  • Postpartum women/multiparous women classified as high-risk during pregnancy due to a diagnosis of gestational diabetes mellitus; type 1 or type 2 diabetes mellitus; chronic or pregnancy-specific hypertension; smoking; alcohol use; use of psychoactive substances, among others;
  • Postpartum women/multiparous women who present postpartum complications (such as hemorrhage, difficulty in verbal communication, or sepsis);
  • Postpartum women/multiparous women who develop clinical or hemodynamic complications after childbirth;
  • Postpartum women/multiparous women whose newborns died or were admitted to a Neonatal Intensive Care Unit (NICU);
  • Women with communication difficulties (impaired understanding or mental disorders).

研究组 & 干预措施

Control

Sham Comparator

sham treatment

干预措施: Sham treatment (Device)

Experimental group

Experimental

low-level laser therapy

干预措施: low-level laser therapy (Device)

结局指标

主要结局

Perineal pain intensity (VAS) (immediate)

时间窗: 30 minutes

Perineal pain intensity will be assessed using the Visual Analog Scale (VAS), a validated instrument ranging from 0 to 10, where 0 represents "no pain" and 10 represents "the worst pain imaginable." Participants will be asked to rate their level of perineal pain at rest. The assessment will be performed in the immediate postpartum period following the intervention.

Perineal Pain Intensity (VAS) - 24 hours

时间窗: 24 hours

Perineal pain intensity will be assessed 24 hours postpartum using the Visual Analog Scale (VAS), a validated instrument ranging from 0 to 10, where 0 represents "no pain" and 10 represents "the worst pain imaginable." Participants will be asked to rate their level of perineal pain at rest at 24 hours after delivery.

Perineal Pain Intensity (VAS) - 48 Hours

时间窗: 48 Hours

Perineal pain intensity will be assessed 48 hours postpartum using the Visual Analog Scale (VAS), a validated instrument ranging from 0 to 10, where 0 represents "no pain" and 10 represents "the worst pain imaginable." Participants will be asked to rate their level of perineal pain at rest 48 hours after delivery.

Assessment of wound healing (REEDA) - immediate

时间窗: 30 minutes

Perineal wound healing will be assessed using the REEDA scale (Redness, Edema, Ecchymosis, Discharge, and Approximation), a validated instrument used to evaluate the healing process of perineal trauma. Each item is scored from 0 to 3, with total scores ranging from 0 to 15, where lower scores indicate better healing. The assessment will be performed in the immediate postpartum period following the intervention.

Assessment of Wound Healing (REEDA) - 24 Hours

时间窗: 24 Hours

Perineal wound healing will be assessed 24 hours postpartum using the REEDA scale (Redness, Edema, Ecchymosis, Discharge, and Approximation), a validated instrument used to evaluate the healing process of perineal trauma. Each item is scored from 0 to 3, with total scores ranging from 0 to 15, where lower scores indicate better healing. The assessment will be performed 24 hours after delivery.

次要结局

  • Complications of Perineal Laceration(48 Hours)
  • Adverse Effects of Laser Therapy(48 Hours)
  • Need for Pharmacological Analgesia(48 hours)
  • Global Change Perception Scale (GCPS) Assessment(48 Hours)
  • Maternal Satisfaction Level(48 Hours)
  • Adherence to the Intervention(48 Hours)

研究者

发起方
Instituto Materno Infantil Prof. Fernando Figueira
申办方类型
Other
责任方
Principal Investigator
主要研究者

Leila Katz

PhD

Instituto Materno Infantil Prof. Fernando Figueira

研究点 (1)

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