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Abstract To analyze the evaluation value of the pelvic floor ultrasound for the rehabilitation efficacy of patients with postpartum stress urinary incontinence (PSUI). Methods: 90 patients with PSUI in the 6th weeks after delivery were selected in this study from March to November 2023. 45 patients who had accepted the pelvic floor muscle training were included in group A and 45 patients who had received the electrical stimulation therapy were included in group B. Another 45 women without PSUI were randomly selected in group C. The pelvic floor ultrasonography was used to compare the hiatus area of the levator ani muscle, the urethral rotation angle, the bladder neck mobility and the strain rate of the levator ani muscle of the patients at Valsalva maneuver before and after treatment were compared among the three groups. Results: Before the treatment, the hiatus area of the levator ani muscle, the urethral rotation angle and the bladder neck mobility of the patients in group A and in group B at Valsalva maneuver were significantly higher than those of the patients in group C, and the strain rate of the levator ani muscle of the patients in group A and in group B at Valsalva maneuver was significantly lower (all P<0.05). After 12 weeks of treatment, the hiatus area of the levator ani muscle (21.3±2.1 and 2.4±0.2), the urethral rotation angle (46.7±9.8°and 48.6±10.4°) and the bladder neck mobility (19.0±3.0% and 17.5±3.3%) of the patients in group A and in group B at Valsalva maneuver had decreased significantly. The strain rate of the levator ani muscle of the patients in group A and in group B at Valsalva maneuver after treatment were 19.0±3.0 and 17.5±3.3, which had no change significantly (P>0.05). Conclusion: Both the pelvic floor muscle training and the electrical stimulation are the effective rehabilitation methods for the patients with PSUI. The pelvic floor ultrasound can determine the changes of the pelvic floor morphology and structure of the patients, and which has the role for evaluating the efficacy of the rehabilitation of PSUI of the patients.
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