Perineal Pain Management with Cryotherapy after Vaginal Delivery: A Randomized Clinical Trial.

Introduction Systematic reviews that evaluate the perineal cryotherapy to reduce pain in the vaginal postpartum are inconclusive. Purpose To evaluate clinical effectiveness of cryotherapy in the management of humanized postpartum perineal pain and vaginal edema. Methods A double-bind randomized controlled clinical trial (UTN number: U1111-1131-8433) was conducted in a hospital in Northeastern, Brazil. Women were included following humanized childbirth. All had vaginal deliveries of a single, full-term pregnancy with cephalic presentation. Exclusion criteria included previous perineal lesion, episiotomy during the current delivery, instrumental delivery, uterine curettage and postpartum hemorrhage. In the experimental group, an ice pack was applied six times on the perineum for 20 minutes, reducing the temperature between 10 and 15 ° C, then 60 minutes without exposure to cold. In the non-cryotherapy, a water bag unable to reduce the temperature to this extent was used, compliance with the same application protocol of the first group. Perineal temperature was monitored at zero, 10 and 20 minutes for application in both groups. Evaluations were made immediately before and after the applications and 24 hours after delivery spontaneous, to determine the association between variables. Results A total of 80 women were included in the study, 40 in each group. There was no significant difference in scores of perineal pain and edema between the groups with or without cryotherapy until 24 hours after childbirth. There was no difference between groups when accomplished repeated measures analysis over the 24 hours after delivery, considering the median perineal pain (p = 0.3) and edema (p = 0.9). Perineal cryotherapy did not influence the amount of analgesics used (p = 0.07) and no adverse effect was registered. Conclusion The use of cryotherapy following normal vaginal delivery within the concept of humanized minimally interventionist childbirth had no effect on perineal pain and edema, since it was already substantially lower, nor the need for pain medicaments.

Perineal Pain Management with Cryotherapy after Vaginal Delivery: A Randomized Clinical Trial / Manejo da dor perineal com crioterapia no pós-parto vaginal: ensaio clínico randomizado

Abstract Introduction Systematic reviews that evaluate the perineal cryotherapy to reduce pain in the vaginal postpartum are inconclusive. Purpose To evaluate clinical effectiveness of cryotherapy in the management of humanized postpartum perineal pain and vaginal edema. Methods A double-bind randomized controlled clinical trial (UTN number: U1111- 1131-8433) was conducted in a hospital in Northeastern, Brazil.Women were included following humanized childbirth. All had vaginal deliveries of a single, full-term pregnancy with cephalic presentation. Exclusion criteria included previous perineal lesion, episiotomy during the current delivery, instrumental delivery, uterine curettage and postpartum hemorrhage. In the experimental group, an ice pack was applied six times on the perineum for 20 minutes, reducing the temperature between 10 and 15° C, then 60 minutes without exposure to cold. In the non-cryotherapy, a water bag unable to reduce the temperature to this extent was used, compliance with the same application protocol of the first group. Perineal temperature wasmonitored at zero, 10 and 20 minutes for application in both groups. Evaluations were made immediately before and after the applications and 24 hours after delivery spontaneous, to determine the association between variables. Results A total of 80 women were included in the study, 40 in each group. There was no significant difference in scores of perineal pain and edema between the groups with or without cryotherapy until 24 hours after childbirth. There was no difference between groups when accomplished repeated measures analysis over the 24 hours after delivery, considering the median perineal pain (p = 0.3) and edema (p = 0.9). Perineal cryotherapy did not influence the amount of analgesics used (p = 0.07) and no adverse effect was registered. Conclusion The use of cryotherapy following normal vaginal delivery within the concept of humanized minimally interventionist childbirth had no effect on perineal pain and edema, since it was already substantially lower, nor the need for pain medicaments.

Resumo Introdução Revisões sistemáticas que avaliam a crioterapia perineal para redução da dor no pós-parto por via vaginal são inconclusivas. Objetivo Avaliar a efetividade clínica da crioterapia para controlar a dor e o edema perineais após parto vaginal humanizado. Métodos Ensaio clínico (n° UTN: U1111-1131-8433) randomizado controlado duplocego, realizado em uma maternidade no Nordeste do Brasil. Incluíram-se mulheres após parto vaginal humanizado, de gestação única, cefálica, a termo, e foram excluídas aquelas com lesão perineal prévia, episiotomia no parto atual, parto instrumental e hemorragia perineal ativa. O grupo experimental foi submetido a seis aplicações de bolsa de gelo triturado na região do períneo, por 20minutos, reduzindo a temperatura entre 10 e 15°C, com 60 minutos entre as aplicações. O grupo sem crioterapia recebeu uma bolsa de água, que não reduzia a temperatura a esse nível, respeitando o mesmo protocolo de aplicação do primeiro grupo. Amonitorização da temperatura perineal foi realizada nos minutos zero, 10 e 20 de aplicação, emambos os grupos. Para determinar a associação entre as variáveis, foramrealizadas avaliações imediatamente antes e após as aplicações e 24 horas após o parto. Resultados Foram incluídas 80 puérperas no estudo, sendo 40 em cada grupo. Não houve diferença significativa para os escores de dor e edema perineais entre os grupos comou sem crioterapia até 24 horas após o parto. Não houve diferença entre os grupos quando realizada análise de medidas repetidas em todas as avaliações, considerando a mediana dos escores de dor (p = 0,3) e edema (p = 0,9) perineais. A crioterapia perineal não influenciou na quantidade de analgésicos utilizados (p = 0,07) e nenhum efeito adverso foi registrado. Conclusões A utilização da crioterapia após parto vaginal humanizado, minimamente intervencionista, nãomodifica escores de dor e edema perineais, por já serem, substancialmente, baixos, tampouco altera a necessidade de medicamentos analgésicos.