Effect of led photobiomodulation on analgesia during labor: Study protocol for a randomized clinical trial

• Published in: Medicine (Baltimore) 2018-06, Vol.97 (25), p.e11120-e11120
• Main Authors: Traverzim, Maria Aparecida dos Santos, Makabe, Sergio, Silva, Daniela Fátima Teixeira, Pavani, Christiane, Bussadori, Sandra Kalil, Fernandes, Kristianne Santos Porta, Motta, Lara Jansiski
• Format: Article
• Language: English
• Subjects: Adult; Analgesia, Epidural - adverse effects; Analgesia, Epidural - methods; Analgesia, Patient-Controlled - methods; Cesarean Section - adverse effects; Cesarean Section - methods; Female; Humans; Labor Pain - diagnosis; Labor Pain - therapy; Labor Stage, First - drug effects; Low-Level Light Therapy - methods; Monitoring, Physiologic - methods; Pain Management - methods; Pain Measurement - methods; Pregnancy; Research Design; Study Protocol Clinical Trial
• ISSN: 0025-7974; 1536-5964
• DOI: 10.1097/MD.0000000000011120

Labor pain is one of the most intense pains experienced by women, which leads to an increase in the number of women opting to undergo a cesarean delivery. Pharmacological and nonpharmacological analgesia methods are used to control labor pain. Epidural analgesia is the most commonly used pharmacological analgesia method. However, it may have side effects on the fetus and the mother. Light-emitting diode (LED) photobiomodulation is an effective and noninvasive alternative to pharmacological methods. To evaluate the effects of LED photobiomodulation on analgesia during labor. In total, 60 women in labor admitted to a public maternity hospital will be selected for a randomized controlled trial. The participants will be randomized into 2 groups: intervention group [analgesia with LED therapy (n = 30)] and control group [analgesia with bath therapy (n = 30)]. The perception of pain will be assessed using the visual analogue scale (VAS), with a score from 0 to 10 at baseline, that is, before the intervention. In both the groups, the procedures will last 10 minutes and will be performed at 3 time points during labor: during cervical dilation of 4 to 5 cm, 6 to 7 cm, and 8 to 9 cm. At all 3 time points, pain perception will be evaluated using VAS shortly after the intervention. In addition, the evaluation of membrane characteristics (intact or damaged), heart rate, uterine dynamics, and cardiotocography will be performed at all time points. The use of LED photobiomodulation will have an analgesic effect superior to that of the bath therapy.