Reduction of abdominal skin laxity in women postvaginal delivery using the synergistic emission of radiofrequency and targeted pressure energies

Summary Objective This study evaluates clinical efficacy of a novel device which uses combined emission of radiofrequency and targeted pressure energy, for reduction of abdominal skin laxity. Methods This was a multicentric, randomized, parallel group‐controlled prospective study. Forty‐six women 6‐36 months after delivery with abdominal skin laxity were randomly assigned to Group A or Group B. Group A received four treatments with BTL UNISON device (BTL Industries Inc, Boston, MA, USA); and, Group B didn't receive any treatments. Skin viscoelasticity was measured using a skin analyzer at baseline and 3 months posttreatments. Standardized digital photographs were evaluated for the severity of skin laxity. Patient comfort and satisfaction were evaluated by standardized questionnaires. Results Subjects’ weight remained stable. In 95% of treated patients the umbilical circumference decreased (average − 1.43 cm, P  < 0.0001). The average of skin viscoelasticity changes in individual patients totaled + 37.6%/3.29 Mpa (retraction time − 62.6 ms/−22.5%; suction pressure + 1.21 Mpa/+13.9%) (all P  < 0.0001). The overall elasticity improved in 90.9% of patients. The control group changes were insignificant. Based on independent photo assessment there was an improvement in the degree of skin laxity in 86% of treated patients. The average laxity score across all treated patients decreased from 1.79 (moderate laxity) at baseline to 1.1 (mild laxity) 3 months posttreatments. Ninety percent of treated patients expressed satisfaction with achieved results. Therapy didn't cause any pain. Conclusions We conclude the investigated device can significantly reduce signs of early postpartum laxity in abdominal area. As such, it is a promising alternative to surgical procedures.