Banca de DEFESA: ALANE MACATRAO PIRES DE HOLANDA ARAUJO SENA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ALANE MACATRAO PIRES DE HOLANDA ARAUJO SENA
DATE: 01/08/2025
TIME: 09:00
LOCAL: remoto
TITLE:

TENS combined with low-level laser photobiomodulation for pain,
functional capacity, and cardiorespiratory variables after cesarean
section

 

KEY WORDS:

.Cesarean Section; Circulatory and Respiratory Physiological Phenomena;
Functional Status; pain.

 

PAGES: 67
BIG AREA: Ciências da Saúde
AREA: Fisioterapia e Terapia Ocupacional
SUMMARY:

Introduction: Postoperative pain following cesarean sections can impair
functional mobility and influence physiological cardiorespiratory variables. For
analgesic purposes, electrophysical agents such as Transcutaneous
Electrical Nerve Stimulation (TENS) and Low-Level Laser Therapy (LLLT),
when applied individually, may be used. However, the combined effect of
these two interventions on the cesarean surgical wound remains unknown.
Objective: To analyze the effect of TENS combined with LLLT on pain in women undergoing cesarean section and its influence on functional capacity
and physiological cardiorespiratory variables. Methods: This was a
randomized clinical trial conducted at Maternidade Divino Amor (Rio Grande
do Norte, Brazil) with women undergoing cesarean section, allocated into four
groups: TENS combined with LLLT, TENS alone, placebo, and control. A total
of 62 participants were included and evaluated at three time points:
assessment 1 (8–12 hours postpartum), assessment 2 (20–24 hours
postpartum), and assessment 3 (44–48 hours postpartum). Data collected
included sociodemographic and clinical characteristics, pain assessment,
functional capacity, and cardiorespiratory variables (systolic and diastolic
blood pressure, heart and respiratory rate, and oxygen saturation).The
combined intervention group followed a protocol of two sessions using low-
intensity TENS (30 min, 100 Hz, 75 μs) with electrodes placed above and
below the cesarean incision, and LLLT (660 nm, 2 J per point, 100 mW). The
TENS-alone group received the same TENS protocol as the combined
intervention group. Both interventions (combined and isolated) were
performed after assessments 1 and 2. Statistical analysis was performed
using a Mixed Model Analysis to compare the effects of the combined
intervention (TENS+LLLT) with the TENS-alone, placebo, and control groups
over time (assessments t1, t2, and t3) on a primary outcome (pain) and
secondary outcomes (functional capacity, systemic blood pressure,
respiratory and heart rate, and oxygen saturation). When appropriate, post
hoc comparisons were conducted using Tukey’s correction for multiple
comparisons. Results: For pain threshold and tolerance, intergroup analysis
revealed a significant difference in pain threshold over time between the
Control and TENS-alone groups (p = 0.009). However, no significant
differences were found in pain tolerance among the groups. Regarding
functional capacity assessed by the Functional Independence Measure, no
significant differences were observed between groups. A significant
intragroup difference in subjective perception of effort was found only in the
TENS+LLLT group (p = 0.002). For the Two-Minute Walk Test, a significant
intragroup improvement in walking distance was observed in the Control,
Placebo, and TENS+LLLT groups. Regarding cardiovascular variables,
systolic blood pressure (SBP) showed a significant intragroup reduction in the
TENS+LLLT group between t1 and t2 (p = 0.005) and between t2 and t3 (p =
0.008). Diastolic blood pressure (DBP) also showed a significant reduction in
the Control and TENS-alone groups. During the Two-Minute Walk Test, both
SBP and DBP showed significant intragroup changes in the TENS and
TENS+LLLT groups, and a significant intergroup difference in DBP was found
when comparing the Placebo and TENS groups at assessment t3 (p = 0.018).

 

 

COMMITTEE MEMBERS:
Interno - 4964489 - CLECIO GABRIEL DE SOUZA
Externa à Instituição - DENISE DAL AVA AUGUSTO
Interna - 2211023 - ILLIA NADINNE DANTAS FLORENTINO LIMA
Externa à Instituição - MARIA CLARA EUGENIA DE OLIVEIRA - CRI
Presidente - 1632408 - PATRICIA ANGELICA DE MIRANDA SILVA NOGUEIRA