Evaluation of the efficacy of masturbation on distal ureteral stones: a prospective, randomized, controlled study

Which combination of medical expulsive therapy is more effective for treatment of distal ureteral stone in adults? A systematic review and network meta-analysis

BACKGROUND

Medical Expulsive Therapy (MET) has been recommended as an established modality for the treatment of distal ureteral stones due to its clearance rate, pain control, and patient satisfaction while having minimal morbidity in comparison to other urologic interventions. In some studies, a combination of medications has been used, which we assessed in this network meta-analysis (NMA).

METHODS

We conducted systematic searches in PubMed, Scopus, and Web of Science to identify relevant trials published between 2001 and 2024. We excluded articles that looked at MET for upper ureteral stone passage or after shock wave lithotripsy (SWL). NMA was performed to compare the effect of combination MET on stone expulsion rate (SER), stone expulsion time (SET), and need for analgesia.

RESULTS

We included 19 studies with 2414 participants. NMA results revealed that the combination MET of α-blockers with PDE-5 inhibitors (OR = 2.7, CI = 1.80,4.05), corticosteroids (OR = 2.7, CI = 1.81,4.13), and phytotherapy (OR: 3.10, CI = 1.62,5.92) were more effective than α-blockers alone in SER. The combination MET of α-blockers with PDE-5 inhibitors (MD: -3.8, CI=-7.0, -0.5) showed significantly lower SET compared to α-blockers alone. Finally, combination MET of α-blockers with PDE-5 inhibitors (MD:1.0, CI = 0.4,1.7) and nifedipine with corticosteroids (MD:1.2, CI = 0.4,1.9) showed a significant decrease in analgesia use.

CONCLUSIONS

The combination MET of α-blockers with PDE-5 inhibitors, corticosteroids, and phytotherapy increases the rate of stone clearance 2.7 to 3.1 times more than α-blockers alone. The other benefits of combination MET were lower expulsion time and less analgesia use that needs further studies.

Is sexual activity an effective way to expel distal and intramural ureteral stones? An updated systematic review and meta-analysis

Purpose

The influence of sexual activity on the spontaneous passage of ureteral stones has been tested by several randomized controlled trials (RCTs), but this relationship remains uncertain. This research has sought to investigate the link between sexual activity, including masturbation, and a higher rate of spontaneous expulsion of ureteral stones.

Material and methods

We searched PubMed, Embase, and Cochrane for RCTs, in January 2024, assessing the effectiveness of sexual activity or masturbation in the elimination of distal or intramural ureteral stones in patients who didn’t receive medical expulsive therapy. Heterogeneity was assessed with I2. Values of p < 0.05 were considered statistically significant. Statistical analysis was performed using Review Manager 5.4.1 (Cochrane Center, The Cochrane Collaboration).

Results

We included 8 RCTs, totaling 755 patients, of which 383 (50.7%) engaged in sexual activity or masturbation 3–4 times per week for an average duration of 4 weeks. The expulsion rate at 2 weeks (OR: 3.48; [95% CI 2.37 to 5.11]; p < 0.00001) and at 4 weeks (OR: 3.28; [95% CI 2.23 to 4.83]; p < 0.00001) was higher in the sexual activity or masturbation group. The average time for stone expulsion (MD: -3.27; [95% CI −5.38 to −1.17]; p < 0.002) was shorter in the experimental group, as well as the average number of analgesic injections (MD: −0.6; [95% CI −0.91 to −0.29]; p < 0.0001).

Conclusion

Our findings suggest that sexual activity or masturbation appears to be effective as an expulsive medical therapy for patients with distal or intramural ureteral stones.

Efficacy of sexual stimulation in the treatment of distal ureteral stones: A meta-analysis

Introduction

This study aimed to compare the clinical efficacy of sexual stimulation with that of placebo in the treatment of distal ureteral stones.

Methods

We searched PubMed, Web of Science, Cochrane Library, and Google Scholar from January 1, 2000 to December 31, 2022 for studies comparing the efficacy of sexual stimulus with that of placebo for the treatment of distal ureteral stones. RevMan 5.3 software was used to pool the data. The study protocol was registered on PROSPERO (Registration Number: CRD42023432408).

Results

A total of six randomized controlled trials comprising 535 cases of distal ureteral stones were included in this study. Among these, 273 cases were associated with sexual intercourse or masturbation 3-4 times a week, while 262 cases only received symptomatic treatment. The pooled results showed that the 2-week [risk ratios (RR) = 1.77, 95 % confidence interval (CI): 1.34, 2.33] and 4-week [RR = 1.48, 95 % CI: 1.29, 1.69] ureteral stone expulsion rates of the sexually stimulated group were significantly higher than those of the placebo group (ps < 0.01). Additionally, sexual stimulation was associated with a shorter ureteral stone expulsion time [weighted mean differences (WMD) = -3.74, 95 % CI: -6.27, -1.22, p < 0.01] and a decreased prevalence of renal colic attacks [WMD = -0.61, 95 % CI: -1.01, -0.22, p < 0.01] compared with those of the placebo group.

Conclusion

Appropriate sexual stimulation can enhance the spontaneous expulsion of distal ureteral stones in patients presenting with tolerable pain.

Alpha-blockers: the magic pill for endourology-The great delusion

PURPOSE

The present paper takes a different and more critical look at the role of alpha-blockers, sometimes nicknamed as "magical pills", in particular for stone disease and medical expulsive therapy (MET).

METHODS

A non-systematic narrative review was performed, synthesizing pertinent information from selected articles, and critically evaluating their conclusions. Sometimes different views on alpha-blockers were laid bare, including curiosities or other entertaining nuances suitable to the present topic, but always maintaining sharp objectivity and the foremost scientific rigor.

RESULTS AND CONCLUSIONS

Alpha-blockers seem to be a panacea, being used to treat a wide variety of non-urological diseases and conditions. Urological applications include erectile dysfunction to benign prostatic hyperplasia, from incontinence to urinary retention, or even to facilitate urinary stone passage along the urinary tract. Due to its versatility, alpha-blockers appear to be the Swiss army knife of urological medications. However, the efficacy of alpha-blockers for MET, pain management, or facilitating upper tract access is very disappointing, bringing no, or in some instances, only marginal benefits. Their treatment results are far from being significant or impressive let alone magical. Regular sexual intercourse is an effective alternative to alpha-blockers, providing faster ureteral stone expulsion rates and reducing the need for pain medication. Most of the research supporting alpha-blockers has been based on single-center, underpowered, low-quality studies. These low-quality studies biased several subsequent meta-analyses, contaminating them with their low-quality data, enhancing and prolonging this delusion. These results emphasize the need for large, multi-centric, unbiased, randomized, double-blinded, placebo-controlled trials to prevent future year-long delusions that may afflict any medical field.

Comparison of the Efficacy of Male Sexual Activity Versus Alpha-Blockers in the Expulsion of Distal Ureteric Stones: A Systematic Review and Meta-Analysis

Globally, the prevalence of urolithiasis is increasing, with limited effective treatment options. Though debate exists within the literature, the use of medical expulsive therapy (MET) for distal ureteric stones in the form of alpha-blockers is commonplace. Alpha-blockers work via the inhibition of norepinephrine, resulting in a small degree of distal ureteric relaxation. Nitric oxide (NO), the main neurotransmitter involved in penile erection, causes smooth muscle relaxation of the distal ureter. It is hypothesised that these alternative pathways may achieve the same desire clinical effect. To our knowledge, this is the first meta-analysis comparing the efficacy of male sexual activity, in the form of intercourse or masturbation, to alpha-blockers in the expulsion of ureteric stones. We conducted a comprehensive search of electronic databases (PubMed, MEDLINE, EMBASE, SCOPUS, CENTRAL and Google Scholar), identifying studies comparing male sexual activity versus alpha-blockers, in male patients with distal ureteric stones. The Cochrane risk-of-bias tool was used to assess the included studies. For data analysis, a random effects model was used in the event of significant heterogeneity (>75%), with fixed-effects modelling in the event of low-moderate heterogeneity. A search of electronic databases found three randomised control trials (RCTs), enrolling a total of 262 patients. There was no statistically significant difference observed when patients engaged in sexual activity rather than alpha-blocker, when looking at stone expulsion rate at two weeks (P=0.36), expulsion rate at four weeks (P=0.57), or the mean stone expulsion time (P=0.21). Furthermore, there was no significant difference observed when looking at analgesic requirements (P=0.43), or the requirement for additional procedures (P=0.57). Our meta-analysis demonstrated that male sexual activity as an alternative therapy for distal ureteric stones had comparable outcomes to the use of alpha-blocker, proving a viable alternative therapy in those patients wishing to avoid pharmacological management.

Minimally Invasive Surgery for the Treatment of Ureteric Stones - State-of-the-Art Review

The landscape of managing ureteric stones has evolved over the last few decades and several treatment options exist depending on the stone size, location, and other patient and stone factors. While open surgery is now rarely performed, the use of medical expulsive therapy (MET) has been controversial and perhaps only recommended for large distal ureteric stones. The mainstay treatment balances between shockwave lithotripsy (SWL) and ureteroscopy (URS), with the latter usually recommended for larger stones. While the principles of ureteric stone management have remained largely unchanged, the modern era has generated new methods and means to deliver it. Advancements have occurred in all domains of endourology to try and refine treatment and balance it with cost, patient choice and quality of life. Dissemination of technologies and demonstration of their efficacy and safety will eventually result in new recommendations among international guidelines and evolution of new gold standards.