Systematic Review and Meta-Analysis of 16 Randomized Controlled Trials of Clinical Outcomes of Low-Intensity Extracorporeal Shock Wave Therapy in Treating Erectile Dysfunction

Comparison of the effectiveness of 2 shockwave therapy protocols for the treatment of vascular erectile dysfunction: a randomized, multicenter, open-label, noninferiority, phase 4 clinical trial

BACKGROUND

Shockwave therapy is an optional adjuvant treatment for vascular erectile dysfunction (ED). There is variability in treatment protocols and challenges with patients adherence to the weekly protocol, which is the most commonly used.

AIM

This study aimed to evaluate the noninferiority of a monthly shockwave therapy protocol compared to the weekly protocol for treating vascular ED.

METHODS

A randomized, open-label, control active, multicenter clinical trial was conducted. A total of 184 men diagnosed with vascular ED, without comorbid conditions associated with secondary dysfunction or active treatment for ED, were included across 5 clinics in Mexico and Colombia. Patients were randomized to receive either 6 sessions of weekly or monthly shockwave therapy, applying the same parameters for both groups.

OUTCOMES

The primary outcome was the change in the International Index of Erectile Function-Erectile Function Domain (IIEF-EF) Questionnaire score at 24 weeks after treatment, assessed using a noninferiority approach. Secondary outcomes included clinical improvement, erection hardness, and self-esteem (SEAR Questionnaire) at posttreatment, 12 weeks, and 24 weeks of follow-up.

RESULTS

At 24-week posttreatment, the average change in IIEF-EF was 1.93 (± 6.55; 95% CI 0.49-3.38) in the weekly group and 4.30 (± 6.78; 95% CI 2.69-5.9) in the monthly group, demonstrating noninferiority of the monthly protocol (difference -2.36; 95% CI -4.4 to -0.2; noninferiority P < .0001). At the end of treatment, clinical improvement was achieved by 55.2% of participants in the monthly protocol and 30.9% in the weekly (P = .042). No significant differences were found in other outcomes.

CLINICAL IMPLICATIONS

A 6-session monthly shockwave therapy regimen could improve erectile function in men with ED.

STRENGTHS AND LIMITATIONS

This is the largest clinical trial to date evaluating shockwave therapy regimens for ED. The principal limitations were the absence of objective vascular assessment of the changes produced by shockwaves, and the absence of a placebo control group.

CONCLUSION

A monthly protocol of 6 shockwave therapy sessions is noninferior to a weekly protocol up to 6 months after therapy, in men with vascular ED.

Therapeutic management of erectile dysfunction: The AFU/SFMS guidelines

CONTEXT

Erectile dysfunction (ED) is a common sexual disorder. In France, recent evidence-based guidelines are lacking.

AIM

To provide practice guidelines on ED therapeutic management.

EVIDENCE ACQUISITION

Publications indexed in PubMed/Medline® between January 1999 and October 2023, were reviewed. For each clinical question, a level of evidence was attributed to the conclusions. These conclusions and the working group arguments were used to develop and grade (A-C) the recommendations.

RECOMMENDATIONS

ED management must be personalized. Phosphodiesterase 5 inhibitors (PDE5I) are recommended as first-line treatment (A). In patients with severe ED, a combination of PDE5I may be proposed as first- or second-line treatment (Expert Agreement, EA). Extra-cavernous or intra-urethral injections of alprostadil may be offered as first-line alternative to PDE5I or as second-line treatment (B). In case of unsatisfactory response to PDE5I or alprostadil alone, the combination of a PDE5I with intra-cavernosal or intra-urethral alprostadil may be proposed (EA). Vacuum therapy can be offered to all patients (B). Low-intensity extracorporeal shockwave therapy may be proposed to patients with mild or moderate ED, alone or in combination with PDE5I (B). Penile implants are indicated for patients with ED who are refractory or intolerant to pharmacological or mechanical treatments, or if they wish a permanent solution (B). Revascularization surgery may be offered to patients without comorbidities following pelvic trauma and ED with isolated arterial insufficiency (B). In addition to pharmaceutical, mechanical and/or surgical treatments, it is suggested to always consider educational interventions and counseling, lifestyle modifications and management of co-morbidities and curable causes.

The effect of calcium oxalate stones and uric acid stones on male sexual function

PURPOSE

This study compared the effects of calcium oxalate stones and uric acid stones on male sexual function.

METHODS

We enrolled 100 patients with ureteral stones. According to the composition of the stones, they were divided into the calcium oxalate stone group and the uric acid stone group. All patients underwent ureteroscopic holmium laser lithotripsy. General data such as age, body mass index, course of disease, stone diameter, and degree of renal hydronephrosis were compared. Sperm parameters, including sperm density, sperm viability, and sperm deformity rate, as well as International Index of Erectile Function-5 questionnaire (IIEF-5) scores, and Quality of Life (QOL) scores, were measured and compared before and 6 weeks after the surgery.

RESULTS

There were no statistically significant differences in general data and sperm parameters between the two groups before the surgery (P > 0.05). However, there were significantly lower IIEF scores but significantly higher QOL scores in the uric acid stone group. In the calcium oxalate stone group, there were no statistically significant differences in sperm parameters, IIEF score, and QOL score before and after the surgery (P > 0.05). In the uric acid stone group, there were no statistically significant differences in sperm parameters before and after surgery (P > 0.05), whereas there were significantly higher IIEF scores but significantly lower QOL scores after the surgery (P < 0.05). The prevalence of erectile dysfunction (ED) in the uric acid stone group was 38.18% (21/55), which was significantly higher compared to 20.00% (9/45) in the calcium oxalate stone group (P < 0.05). The multivariate binary logistic regression analysis showed that the independent risk factor related to ED was uric acid stones (odds ratio: 2.637, 95% confidence interval 1.040-6.689, P = 0.041). No statistically significant differences were found in sperm parameters between patients with and without ED.

CONCLUSION

Compared with the calcium oxalate stone group, patients with uric acid stones had a higher prevalence of ED and poorer sexual performance.

The Role of Different Modalities of Regenerative Therapies in the Treatment of Erectile Dysfunction: A Global Survey and Global Andrology Forum Expert Recommendations

PURPOSE

There is increased interest in regenerative therapies (RTs) to treat erectile dysfunction (ED). However, the need for society's guidelines has led to varied practices. This study aims to investigate current global practices, address the heterogeneity in treatment protocols and evaluations, and establish expert recommendations in clinical practice.

MATERIALS AND METHODS

Senior experts from the Global Andrology Forum (GAF) created a 32-question survey to evaluate the clinical aspects of various RT modalities and compare them with each other and with phosphodiesterase type 5 inhibitors (PDE5is). The survey was distributed worldwide to ED specialists through online Google Forms, the GAF website, international professional societies, and direct emails. The responses were analyzed and are presented as percentage frequencies. Additionally, an expert consensus on recommendations for RT use was reached at via a modified Delphi method.

RESULTS

Out of 163 respondents from 39 countries, the majority (80.1%) were using low-intensity shockwave therapy (LISWT), followed by platelet-rich plasma (PRP) 61.3% and stem cell therapy (SCT) 17.8%. Efficacy comparisons revealed no perceived significant differences among RT modalities (p=0.124). Compared to PDE5is, the efficacy of LISWT and PRP was considered lower by the respondents, while SCT was rated better by almost half of those who used SCT. The duration of improvement varied (p=0.279), with most improvements lasting 1 to 6 months. The treatment protocols used for LISWT were mainly consistent but varied widely for PRP and SCT. Adverse effects were minimal, particularly for LISWT (p<0.001). The costs varied significantly (p<0.001), with SCT being the most expensive. The evidence for efficacy was rated as primarily moderate to strong for LISWT but poor for PRP and SCT (p=0.027).

CONCLUSIONS

Most respondents utilized LISWT, followed by PRP, with SCT being the least commonly utilized. The high break heterogeneity in treatment protocols and evaluation of RT underscores the need for further studies and guidelines to establish best practices.

Is low-intensity shockwave therapy for erectile dysfunction a durable treatment option?-long-term outcomes of a randomized sham-controlled trial

Background

Low-intensity shockwave therapy (LiSWT) is an emerging non-invasive and restorative therapy for erectile dysfunction (ED) with demonstrated efficacy and few adverse events. Although LiSWT has been shown to improve erectile function amongst men with ED, few studies have examined its long-term durability. We present the long-term results of a randomized controlled trial (RCT) assessing erectile function after LiSWT.

Methods

A total of 30 patients with baseline ED seen at the University of Virginia were randomized to LiSWT or sham treatment. Patients in the sham group crossed over at 1 month and were unblinded. After initial trial completion, patients enrolled in the long-term outcome study were considered one combined cohort. Patients were treated twice weekly for 3 consecutive weeks with a Storz® Duolith™ device delivering 3,000 shockwaves at 0.1 mJ/mm2 to the distal penis, the base of the penis, and the crura. Primary outcomes were changes in Sexual Health Inventory for Men (SHIM) and Erection Hardness Score (EHS) from baseline (3 months pre-treatment) up to 36 months post-treatment. Changes in SHIM and EHS scores were evaluated using linear mixed effects models. Patient satisfaction was assessed with the Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) index.

Results

The mean baseline SHIM score was 10.8±0.94. At 12-, 24-, and 36-month assessment following treatment, the mean SHIM scores were 15.6±1.27 (P<0.001), 15.0±1.14 (P<0.001), and 12.2±1.43 (P=0.31). The mean baseline EHS score was 1.87±0.17. At 12-, 24-, and 36-month assessment following treatment, the mean EHSs were 2.70±0.24 (P<0.001), 2.66±0.21 (P<0.001), and 2.29±0.26 (P=0.10). The median [interquartile range (IQR)] EDITS score was 48.9 (22.7, 74.4), indicating moderate satisfaction with LiSWT. There were no adverse events recorded.

Conclusions

Our analysis demonstrates sustained long-term improvement in erectile function after LiSWT for a heterogeneous cohort. While limited by population size, the results suggest durable improvement in erectile function for the first 2 years with a peak treatment effect at 1 year. Treatment effect appears to decline between 2 and 3 years.

Clinical Trial Registration

ClinicalTrials.gov, NCT04434352.

The potential role of intracavernosal injection of platelet-rich plasma for treating patients with mild to moderate erectile dysfunction: A GRADE-Assessed systematic review and meta-analysis of randomized controlled trials

INTRODUCTION

Platelet-rich plasma (PRP) has shown positive effects on enhancing erectile function in animal studies. Human clinical trials are limited and provide contradictory results. This review aims to conduct a meta-analysis of the available Randomized controlled trials (RCT) to assess the efficacy of PRP in males with ED.

METHODS

A systematic review was carried out following the Cochrane Handbook of Intervention and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and registered in PROSPERO (CRD42023441655).

RESULTS

A total of three RCTs were included in the analysis for a total of 221 patients with mild to moderate ED. The patients receiving PRP reported significantly better improvement of IIEFEF score during 1,3- and 6-months follow-up compared to the placebo group (mean difference [MD] 2.66, 95% confidence interval [CI] 1.48 to 3.83, p < 0.01; MD 2.11, 95%CI 0.13 to 4.09, p = 0.04; MD 2.99, 95%CI 1.79 to 4.19, p < 0.01). The pooled analysis indicated that attainment of minimally clinical important difference (MCID) was significantly higher in patients receiving PRP compared to the placebo group during one and 6-month follow-up (odds ratio [OR] 5.51, 95%CI 1.2 to 254, p = 0.03; OR 5.64, 95%CI 2.05 to 15.55, p < 0.01; respectively). Encouragingly, no major AEs were reported in all three trials in the PRP and placebo groups (p = 0.99).

CONCLUSIONS

This review highlights the potential role of PRP in providing short-term improvement of erectile function parameters for up to 6 months in mild to moderate ED patients. Future RCTs with longer-duration follow-ups and more standardized treatment protocols are necessary to gain sufficient details on PRP's long-term effectiveness and safety.

Efficacy and safety of low-intensity pulsed ultrasound (LIPUS) combined with tadalafil in the treatment of severe erectile dysfunction: a retrospective cohort study

Background

Low-intensity pulsed ultrasound (LIPUS) is an effective and safe treatment for mild to moderate erectile dysfunction (ED). This study aimed to investigate the efficacy and safety of combining LIPUS with tadalafil in treating severe ED.

Methods

The data from 27 patients treated with LIPUS alone (group A) and 21 patients treated with a combination of LIPUS and daily 10 mg tadalafil (group B) were retrospectively analyzed. The LIPUS regimen consisted of twice-weekly treatments for 4 consecutive weeks. The treatment was considered effective if the change in International Index of Erectile Function-Erectile Function Domain (IIEF-EF) score after treatment was greater than or equal to the minimal clinically important difference (MCID) (the MCID for severe ED is 7 points). The effectiveness, IIEF-EF score, erectile hardness score (EHS), peak systolic velocity (PSV), end diastolic velocity (EDV), and adverse events were evaluated before treatment, 4 weeks after treatment, and 12 weeks after treatment.

Results

Compared to pre-treatment, both groups showed significant improvement in IIEF-EF score and EHS at 4 and 12 weeks after treatment (P<0.001), with no statistically significant difference between the two time points (P>0.05). The effective rate did not significantly differ between group A (9/27, 33.3%) and group B (10/21, 47.62%) at 4 weeks or between group A (9/27, 33.3%) and group B (12/21, 57.14%) at 12 weeks after treatment (P=0.32, P=0.10). However, in patients without comorbidities, the effective rate of group B (12/18, 66.67%) was higher than that of group A (9/25, 36.00%) at 12 weeks after treatment (P=0.047). After LIPUS treatment, the PSV level significantly increased and the EDV level significantly decreased compared with before treatment (P<0.05). No adverse events were reported.

Conclusions

The study suggests that LIPUS has a therapeutic effect on severe ED patients, especially those without comorbidities. It may have a synergistic or overlapping effect with phosphodiesterase type 5 inhibitors (PDE5Is) on severe ED patients without comorbidities.

Proceedings of PRINCETON IV: PDE5 inhibitors and cardiac health symposium

INTRODUCTION

Prior consensus meetings have addressed the relationship between phosphodiesterase type 5 (PDE5) inhibition and cardiac health. Given significant accumulation of new data in the past decade, a fourth consensus conference on this topic was convened in Pasadena, California, on March 10 and 11, 2023.

OBJECTIVES

Our meeting aimed to update existing knowledge, assess current guidelines, and make recommendations for future research and practice in this area.

METHODS

An expert panel reviewed existing research and clinical practice guidelines.

RESULTS

Key findings and clinical recommendations are the following: First, erectile dysfunction (ED) is a risk marker and enhancer for cardiovascular (CV) disease. For men with ED and intermediate levels of CV risk, coronary artery calcium (CAC) computed tomography should be considered in addition to previous management algorithms. Second, sexual activity is generally safe for men with ED, although stress testing should still be considered for men with reduced exercise tolerance or ischemia. Third, the safety of PDE5 inhibitor use with concomitant medications was reviewed in depth, particularly concomitant use with nitrates or alpha-blockers. With rare exceptions, PDE5 inhibitors can be safely used in men being treated for hypertension, lower urinary tract symptoms and other common male disorders. Fourth, for men unresponsive to oral therapy or with absolute contraindications for PDE5 inhibitor administration, multiple treatment options can be selected. These were reviewed in depth with clinical recommendations. Fifth, evidence from retrospective studies points strongly toward cardioprotective effects of chronic PDE5-inhibitor use in men. Decreased rates of adverse cardiac outcomes in men taking PDE-5 inhibitors has been consistently reported from multiple studies. Sixth, recommendations were made regarding over-the-counter access and potential risks of dietary supplement adulteration. Seventh, although limited data exist in women, PDE5 inhibitors are generally safe and are being tested for use in multiple new indications.

CONCLUSION

Studies support the overall cardiovascular safety of the PDE5 inhibitors. New indications and applications were reviewed in depth.

Retrospective analysis of the efficacy of low-intensity extracorporeal shock wave therapy on young and middle-aged patients with erectile dysfunction responsive to PDE5Is: reducing the use of PDE5Is

Background

Low-intensity extracorporeal shock wave therapy (Li-ESWT) is a new method for treating erectile dysfunction (ED), but there are no standards yet for its indications.

Aim

The study aimed to suggest the early clinical efficacy of Li-ESWT and explore its related factors in young and middle-aged patients with ED who responded to phosphodiesterase type 5 Inhibitors (PDE5Is).

Methods

Data from 61 patients with ED who had previously responded to oral PDE5Is and subsequently underwent Li-ESWT were collected. This included information on age, body mass index, total testicular volume, sex hormones, as well as IIEF-EF scores before treatment and at 1, 3, and 6 months after treatment. The treatment regimen involves a weekly session for four consecutive weeks, with each session administering 5000 shock wave pulses. Linear regression analysis was utilized to identify factors associated with the efficacy of Li-ESWT treatment. Additionally, the improvement in different severity groups of ED before and after treatment, along with their IIEF-EF scores, was compared.

Outcomes

Li-ESWT was more targeted and effective for young and middle-aged patients with erectile dysfunction who responded to PDE5Is.

Results

The age of enrolled patients ranges from 22 to 53 years old, and the IIEF-EF scores at 1 month, 3 months, and 6 months after treatment were compared to baseline for efficacy assessment, showing significant improvements (P < .0001) in all instances. Linear regression analysis using baseline data revealed predictive factors associated with treatment efficacy: treatment efficacy was negatively correlated with baseline IIEF-EF scores (t = -2.599, P = .013) and positively correlated with baseline LH levels (t = 2.170, P = .036).

Clinical Implications

Given the considerable cost of Li-ESWT treatment and the emphasis on treatment continuity, we hope to identify the most suitable candidates for Li-ESWT therapy, thereby optimizing its application.

Strengths and Limitations

Our findings provide a better solution for nonelderly ED patients who are responsive to PDE5Is. This study was limited by our sample size and follow-up time.

Conclusion

After 3 months of Li-ESWT, the IIEF-EF score gradually stabilizes and short-term maintenance of PDE5Is medication increases the responsiveness to shock wave therapy.

Effectiveness of Low-Intensity Extracorporeal Shock Wave Therapy in Erectile Dysfunction: An Analysis of Sexual Function and Penile Hardness at Erection: An Umbrella Review

The present umbrella review of five systematic reviews and meta-analyses was conducted to investigate the effectiveness of Low-Intensity Extracorporeal Shock Wave Therapy (Li-ESWT) in the treatment of vascular origin Erectile Dysfunction (ED). A search was carried out in the databases of Pubmed, Scopus, Medline, Scielo and Embase. Participants were divided into two groups: an experimental group receiving Li-ESWT and a control group receiving simulated shock waves. The main variable of this study is ED, measured using the International Index of Erectile Function-Erectile Function (IIEF-EF) and the Erection Hardness Score (EHS) scale. The results showed a statistically significant increase in the mean IIEF-EF score in the experimental group. Overall, four out of five articles reported an increase in the EHS score in the Li-ESWT group compared to the placebo. Concerning the treatment parameters, better outcomes were observed with an energy density of 0.09 mJ/mm2 and the application of 1500-2000 pulses. Additionally, a follow-up of 6-12 months resulted in greater improvement in ED compared to 3 months, although more studies investigating follow-ups beyond 12 months are needed. Obtaining conclusive and clear results is challenging; however, everything indicates that Li-ESWT is an innovative therapeutic alternative for vascular-origin ED due to its low risk and improvement in erectile function.

Princeton IV consensus guidelines: PDE5 inhibitors and cardiac health

BACKGROUND

In 1999, 1 year after the approval of the first oral phosphodiesterase type 5 (PDE5) inhibitor for the treatment of erectile dysfunction (ED), the first Princeton Consensus Conference was held to address the clinical management of men with ED who also had cardiovascular disease. These issues were readdressed in the second and third conferences. In the 13 years since the last Princeton Consensus Conference, the experience with PDE5 inhibitors is more robust, and recent new data have emerged regarding not only safety and drug-drug interactions, but also a potential cardioprotective effect of these drugs.

AIM

In March 2023, an interdisciplinary group of scientists and practitioners met for the fourth Princeton Consensus Guidelines at the Huntington Medical Research Institutes in Pasadena, California, to readdress the cardiovascular workup of men presenting with ED as well as the approach to treatment of ED in men with known cardiovascular disease.

METHOD

A series of lectures from experts in the field followed by Delphi-type discussions were developed to reach consensus.

OUTCOMES

Consensus was reached regarding a number of issues related to erectile dysfunction and the interaction with cardiovascular health and phosphodiesterase-5 inhibitors.

RESULTS

An algorithm based on recent recommendations of the American College of Cardiology and American Heart Association, including the use of computed tomography coronary artery calcium scoring, was integrated into the evaluation of men presenting with ED. Additionally, the issue of nitrate use was further considered in an algorithm regarding the treatment of ED patients with coronary artery disease. Other topics included the psychological effect of ED and the benefits of treating it; the mechanism of action of the PDE5 inhibitors; drug-drug interactions; optimizing use of a PDE5 inhibitors; rare adverse events; potential cardiovascular benefits observed in recent retrospective studies; adulteration of dietary supplements with PDE5 inhibitors; the pros and cons of over-the-counter PDE5 inhibitors; non-PDE5 inhibitor therapy for ED including restorative therapies such as stem cells, platelet-rich plasma, and shock therapy; other non-PDE5 inhibitor therapies, including injection therapy and penile prostheses; the issue of safety and effectiveness of PDE5 inhibitors in women; and recommendations for future studies in the field of sexual dysfunction and PDE5 inhibitor use were discussed.

CLINICAL IMPLICATIONS

Algorithms and tables were developed to help guide the clinician in dealing with the interaction of ED and cardiovascular risk and disease.

STRENGTHS AND LIMITATIONS

Strengths include the expertise of the participants and consensus recommendations. Limitations included that participants were from the United States only for this particular meeting.

CONCLUSION

The issue of the intersection between cardiovascular health and sexual health remains an important topic with new studies suggesting the cardiovascular safety of PDE5 inhibitors.

Long-term efficacy and safety of extracorporeal shock wave therapy (Li-ESWT) protocols in the treatment of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) patients

AIM

This study aims to evaluate the long-term effectiveness of Li-ESWT in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) patients and to compare the effect of treatment protocol differences on success.

METHOD

Between December 2019 and January 2021, the data of male patients over the age of 18 who applied to the urology outpatient clinic with CP/CPPS symptoms were retrospectively analyzed. International Prostate Symptom Index (IPSS) and International Index of Erectile Function-Erectile Function (IIEF-EF) questionnaires were filled in for the evaluation of erectile function. All patients received treatment with the Medispect Bold Li-ESWT. The treatment responses of the patients who received a total of 6 sessions from one session per week and 12 sessions from two sessions per week were compared.

RESULTS

A total of 129 patients were included in the study. Significant improvements were observed in the NIH-CPSI, IPSS, and IIEF-EF scores at the third month follow-ups of the patients after EWST (p < 0.001 for each). Improvements in scores were also found to be significant in NIH-CPSI, IPSS, and IIEF-EF at the 12th month evaluation. When the patients were evaluated according to the number of Li-ESWT sessions they received, the IPSS score average of the patient group who received 12 sessions of Li-ESWT was found to be lower than the patients who received 6 sessions of Li-ESWT (5.67 ± 2, 30 vs 4.51 ± 2.21; p = 0.005). There was no significant difference in the IIEF-EF and IPSS scores in the 12th month evaluations of the patients, but the mean NIH-CPSI score was found to be higher in the group that received 12 sessions of Li-ESWT (p = 0.003).

CONCLUSION

Li-ESWT in the treatment of CP/CPPS patients shows positive improvements in urinary symptoms, erectile function, and quality of life in patients unresponsive to other medical treatments. The increase in the number of sessions does not seem to influence the symptoms of the patients.

Low-intensity shockwave therapy improves baseline erectile function: a randomized sham-controlled crossover trial

Background

Low-intensity shockwave therapy for erectile dysfunction is emerging as a promising treatment option.

Aim

This randomized sham-controlled crossover trial assessed the efficacy of low-intensity shockwave therapy in the treatment of erectile dysfunction.

Methods

Thirty-three participants with organic erectile dysfunction were enrolled and randomized to shockwave therapy (n = 17) or sham (n = 16). The sham group was allowed to cross over to receive shockwave therapy after 1 month.

Outcomes

Primary outcomes were the changes in Sexual Health Inventory for Men (SHIM) score and Erection Hardness Score at 1 month following shockwave therapy vs sham, and secondary outcomes were erectile function measurements at 1, 3, and 6 months following shockwave therapy.

Results

At 1 month, mean SHIM scores were significantly increased in the shockwave therapy arm as compared with the sham arm (+3.0 vs -0.7, P = .024). Participants at 6 months posttreatment (n = 33) showed a mean increase of 5.5 points vs baseline (P < .001), with 20 (54.6%) having an increase ≥5. Of the 25 men with an initial Erection Hardness Score <3, 68% improved to a score ≥3 at 6 months. When compared with baseline, the entire cohort demonstrated significant increases in erectile function outcomes at 1, 3, and 6 months after treatment.

Clinical Implications

In this randomized sham-controlled crossover trial, we showed that 54.6% of participants with organic erectile dysfunction met the minimal clinically important difference in SHIM scores after treatment with low-intensity shockwave therapy.

Strengths and Limitations

Strengths of this study include a sham-controlled group that crossed over to treatment. Limitations include a modest sample size at a single institution.

Conclusions

Low-intensity shockwave therapy improves erectile function in men with erectile dysfunction as compared with sham treatment, which persists even 6 months after treatment.

Clinical Trial Registration

ClinicalTrials.gov NCT04434352.

Advances in physical diagnosis and treatment of male erectile dysfunction

Erectile dysfunction (ED) is the most common male sexual dysfunction by far and the prevalence is increasing year after year. As technology advances, a wide range of physical diagnosis tools and therapeutic approaches have been developed for ED. At present, typical diagnostic devices include erection basic parameter measuring instrument, erection hardness quantitative analysis system, hemodynamic testing equipment, nocturnal erection measuring instrument, nerve conduction testing equipment, etc. At present, the most commonly used treatment for ED is pharmacological therapy represented by phosphodiesterase five inhibitors (PDE5i). As a first-line drug in clinical, PDE5i has outstanding clinical effects, but there are still some problems that deserve the attention of researchers, such as cost issues and some side effects, like visual disturbances, indigestion, myalgia, and back pain, as well as some non-response rates. Some patients have to consider alternative treatments. Moreover, the efficacy in some angiogenic EDs (diabetes and cardiovascular disease) has not met expectations, so there is still a need to continuously develop new methods that can improve hemodynamics. While drug have now been shown to be effective in treating ED, they only control symptoms and do not restore function in most cases. The increasing prevalence of ED also makes us more motivated to find safer, more effective, and simpler treatments. The exploration of relevant mechanisms can also serve as a springboard for the development of more clinically meaningful physiotherapy approaches. Therefore, people are currently devoted to studying the effects of physical therapy and physical therapy combined with drug therapy on ED. We reviewed the diagnosis of ED and related physical therapy methods, and explored the pathogenesis of ED. In our opinion, these treatment methods could help many ED patients recover fully or partially from ED within the next few decades.

Efficacy and patient satisfaction of low-intensity shockwave treatment for erectile dysfunction in a retrospective real-world study in Japan

OBJECTIVES

To clarify the efficacy of low-intensity extracorporeal shockwave therapy for patients with erectile dysfunction, compare the efficacy between two types of lithotripters (ED1000 [focused type] and Renova [linear type]), and detect factors indicative of therapeutic gain with the treatment.

METHODS

This retrospective study included 76 patients (52.8 ± 11.7 years) treated by ED1000 (12 times over 9 weeks) and 484 patients (52.5 ± 11.6 years) treated by Renova (4 times over 4 weeks). Age, sexual symptoms scores, and blood examinations were assessed. Efficacy was judged by improvement of the scores and patient satisfaction and compared between patients at 1 month after treatment with the lithotripters. Independent factors influencing efficacy by Renova were also assessed.

RESULTS

Sexual symptom scores were improved significantly by both lithotripters, although the changes in the scores did not differ significantly between them. Efficacy rate as judged by patient satisfaction was 65.8% with the ED1000 and 71.1% with Renova, also without significant difference. Among several factors including age, sexual symptoms scores, endocrinological factors, metabolic factors, and the rate of phosphodiesterase type 5 inhibitor use, only age was found to be an independent factor influencing the efficacy of Renova.

CONCLUSION

We clearly showed the high efficacy of both lithotripters. Although the efficacy rate did not differ between them, we speculated that the fewer treatment sessions needed with the Renova versus the ED1000 would be a great advantage for patients. We also suggest that Renova should be recommended for patients younger than 70 years of age.

Assessing the quality and readability of online content on shock wave therapy for erectile dysfunction

Patients are becoming increasingly reliant on online platforms for obtaining health information. Previous research has shown that the quality of information available on the internet regarding novel medical therapies is generally poor and frequently misleading. Shock wave therapy represents a novel restorative therapy for erectile dysfunction (ED) that has recently gained attention. We hypothesised that online sources regarding shock wave therapy for ED would be fraught with misleading claims and unreliable health information. Our objective was to evaluate the quality and readability of online medical information on shock wave therapy as a treatment for ED. Websites were generated using a Google search of 'shock wave therapy for erectile dysfunction' with location filters disabled. Readability was analysed using the Readable software (Readable.com, Horsham, United Kingdom). Quality was assessed independently by three reviewers using the DISCERN tool. Articles were subdivided into those from private clinic websites and those from universities or news media websites. Statistical analysis was conducted using the Student's t test. Nine articles that resulted from the Google search had mean readability scores as follows: Flesch-Kincaid grade level (10.8), Gunning-Fog Index (13.67), Coleman-Liau Index (12.74), Simple Measure of Gobbledygook (SMOG) Index (13.33), FORCAST Grade Level (11.33), and Automated Readability Index (11.08). The mean Flesch Reading Ease score was 46.4. The articles had a mean DISCERN score of 3.1, suggesting 'moderate quality' content. Articles from universities (n = 2) or news sources (n = 3) had significantly higher DISCERN scores than articles from private medical practices (n = 4). There was no difference in readability scores between the groups. Articles from private clinics are just as readable as those from universities or news media, but they are significantly more biased and misleading. The current online material relating to shock wave therapy for ED may not adequately inform patients in their medical decisions making, thereby necessitating closer collaboration between the sources disseminating information and urologists.

Impact of extracorporeal shockwave therapy for erectile dysfunction and Peyronie's disease on reproductive and hormonal testicular function

INTRODUCTION

Extracorporeal shock wave therapy is an established treatment for erectile dysfunction and Peyronie's disease. Concerns regarding the safety of extracorporeal shock wave therapy for andrological purposes on testicular function were raised by animal studies.

AIM

To evaluate the impact of extracorporeal shock wave therapy for erectile dysfunction or Peyronie's disease on reproductive and hormonal testicular function.

METHODS

We designed a prospective controlled study in which consecutive patients were enrolled. Males aged between 18 and 40 years with mild vasculogenic erectile dysfunction or acute inflammatory Peyronie's disease and normozoospermia were included. All enrolled patients were offered extracorporeal shock wave therapy, and subjects who refused extracorporeal shock wave therapy for any reason were considered as the Control group. All patients in the Intervention group were treated with DUOLITH SD1 T-TOP by a single expert urologist. Semen analysis and serum total testosterone dosage were performed before the start (T0) and 3 months after the end of extracorporeal shock wave therapy (T1) in Intervention group. The same parameters were evaluated after the extracorporeal shock wave therapy refusal (T0) and at the end of the following 3 months (T1) in Control group. Normozoospermia was chosen as the primary outcome, serum total testosterone concentration was selected as the secondary outcome.

RESULTS

A total of 94 patients were enrolled in the study (48 Group A, 46 Group B). At T0, all patients were normozoospermic in both groups (p = 0.563), and no significant difference in mean ± SD total testosterone levels was recorded between the groups (582.5 ± 107.2 vs. 634.6 ± 108.4 ng/dl; p = 0.221). At T1, no significant deterioration (p > 0.05) in semen parameters was recorded in both groups. Only a statistically significant reduction in seminal pH was found after extracorporeal shock wave therapy compared to baseline (7.9 ± 0.3 vs. 7.5 ± 0.2; p < 0.001) and untreated patients (7.8 ± 0.2 vs. 7.5 ± 0.2; p < 0.001). No significant difference in total testosterone levels was recorded in Intervention group after extracorporeal shock wave therapy compared to baseline (p = 0.584).

CONCLUSION

Extracorporeal shock wave therapy in erectile dysfunction and Peyronie's disease patients does not seem to affect reproductive and hormonal testicular function.