Obstetrics & Gynecology · Medical Literature
The Efficacy of Transcutaneous Electrical Acupoint Stimulation as an Adjunct to Standard Bladder Training for Bladder Emptying After Radical Hysterectomy for Cervical Cancer: A Randomized Controlled Trial.
Abstract
After radical hysterectomy for cervical cancer, postoperative bladder dysfunction is common. This randomized controlled trial evaluated whether adjunctive transcutaneous electrical acupoint stimulation (TEAS) reduces urinary retention. A total of 108 patients were assigned to a control group (standard bladder training, n = 53) or a TEAS group (standard training plus daily 30 min TEAS for 7 days from postoperative day 3, n = 55). The primary outcome was urinary retention (post-void residual > 100 mL on day 11). Secondary outcomes included residual volume, recovery time, recatheterization, urinary tract infection (UTI), treatment efficacy, and quality of life (SF-36). Urinary retention occurred in 35.8% of controls versus 23.6% of TEAS patients (p = 0.164). TEAS significantly reduced median residual volume (70 vs. 85 mL, p = 0.004), shortened median recovery time (2 vs. 4 h, p < 0.001), and lowered recatheterization (16.4% vs. 34.0%, p = 0.036). UTI rates were similar. Treatment efficacy favored TEAS (p = 0.009), and all eight SF-36 domains significantly improved (all p < 0.01). In conclusion, adjunctive TEAS did not significantly reduce the primary outcome of urinary retention but significantly improved multiple secondary bladder-emptying measures and quality of life after radical hysterectomy for cervical cancer.
Clinical relevance
Postoperative bladder dysfunction and urinary retention are well-recognized morbidities following radical hysterectomy for cervical cancer, resulting from disruption of the pelvic autonomic nerve supply. Standard bladder training protocols incompletely address this complication, leaving a meaningful clinical gap in perioperative urological rehabilitation. This RCT is timely given the growing interest in integrative, non-pharmacological adjuncts to enhance functional recovery in gynecologic oncology patients.
Key findings
1. Urinary retention (post-void residual >100 mL on postoperative day 11) occurred in 23.6% of the TEAS group versus 35.8% of controls, a difference that did not reach statistical significance (p = 0.164), meaning the trial failed its primary endpoint. 2. TEAS significantly reduced median post-void residual volume compared to controls (70 mL vs. 85 mL; p = 0.004), indicating a clinically meaningful improvement in bladder emptying efficiency. 3. Median bladder recovery time was significantly shorter in the TEAS group (2 hours vs. 4 hours; p < 0.001), representing a 50% reduction in time to functional bladder recovery. 4. Recatheterization rates were significantly lower in the TEAS group compared to controls (16.4% vs. 34.0%; p = 0.036), suggesting a reduced burden of postoperative urological intervention. 5. Urinary tract infection rates were similar between groups, indicating that adjunctive TEAS did not confer an increased infectious risk. 6. All eight SF-36 health-related quality-of-life domains showed statistically significant improvement in the TEAS group versus controls (all p < 0.01), and overall treatment efficacy also favored TEAS (p = 0.009).
Practice implications
Gynecologic oncologists and perioperative teams managing patients after radical hysterectomy for cervical cancer may consider adjunctive TEAS—initiated on postoperative day 3 as a 30-minute daily session for 7 days—as a low-risk, non-pharmacological complement to standard bladder training, particularly for patients at higher risk of prolonged urinary retention or recatheterization. Although TEAS did not significantly reduce the binary primary endpoint of urinary retention, its statistically significant impact on residual volume, recovery time, recatheterization rates, and all quality-of-life domains supports its integration into multimodal postoperative bladder rehabilitation protocols. Larger, adequately powered multicenter RCTs are warranted to definitively assess the effect on urinary retention as the primary outcome before routine adoption can be broadly recommended.