Oral preparation of hyaluronic acid, chondroitin sulfate, N-acetylglucosamine, and vitamin C improves sexual and urinary symptoms in participants with recurrent urinary tract infections: a randomized crossover trial

BACKGROUND

Intravesical instillation of hyaluronic acid (HA) has been associated with reduced sexual dysfunction in participants with recurrent urinary tract infections (rUTIs), but the efficacy of an oral treatment has never been investigated.

AIM

To investigate the efficacy of an oral preparation of HA, chondroitin sulfate, N-acetylglucosamine, and vitamin C in improving sexual and urinary symptoms in a cohort of reproductive-age participants with rUTI.

METHODS

In a monocentric randomized crossover pilot trial, participants with rUTI who were referred to our institute between March 2022 and April 2023 were randomized 1:1 in 2 groups: intervention vs control. All participants had an oral preparation of cranberry, D-mannose, propolis extract, turmeric, and Boswellia twice a day for 3 months. The intervention group also included an oral preparation of HA, chondroitin sulfate, N-acetylglucosamine, and vitamin C once a day for 3 months. Crossover of treatment occurred at 3 months for an additional 3 months. At baseline and 3 and 6 months, participants were evaluated clinically and with the International Prostate Symptom Score (IPSS) and Female Sexual Function Index (FSFI). Descriptive statistics and logistic regression models tested the impact of the intervention on urinary and sexual symptoms at each follow-up assessment.

OUTCOMES

Improvement in sexual and urinary symptoms as measured by the FSFI and IPSS.

RESULTS

Overall, 27 (54%) participants had an FSFI score <26.5 at enrollment. At 3 months, FSFI scores were higher in the intervention group vs control (P < .001), but IPSS scores were lower (P = .03). After crossover of treatment, FSFI and IPSS scores remained stable in the intervention group. However, after crossover, the control group showed a significant improvement in IPSS and FSFI scores (all P < .01) vs the 3-month assessment. At last follow-up, urinary and sexual symptoms were comparable between groups. In logistic regression analyses, the intervention group was associated with early improvement in sexual symptoms (odds ratio, 3.9; P = .04) and urinary symptoms (odds ratio, 5.1; P = .01) after accounting for clinical confounders.

CLINICAL IMPLICATIONS

Combination treatment with HA, chondroitin sulfate, N-acetylglucosamine, and vitamin C is effective if started immediately or even after a few months from symptoms in participants with rUTI.

STRENGTHS AND LIMITATIONS

The main limitation is the lack of long-term follow-up.

CONCLUSION

The oral formulation of HA, chondroitin sulfate, N-acetylglucosamine, and vitamin C could be an effective therapy against urinary and sexual distress in participants with rUTI (NCT06268483; ClinicalTrials.gov).

Intravesical Instillations of Hyaluronic Acid as First-Line Treatment in Patients with Interstitial Cystitis/Bladder Pain Syndrome: Use, Efficacy and Effects on Quality of Life

The efficacy of hyaluronic acid instillations as therapy for patients with Interstitial Cystitis/Bladder Pain Syndrome (IC/BPS) has been demonstrated in some clinical studies, with response rates up to 70%. The aim of the study is to investigate the change in symptoms and quality of life in female patients with IC/BPS after intravesical instillations of hyaluronic acid used as first-line treatment. A retrospective single-center cohort study was conducted. Female patients, whose symptoms were compatible with the diagnosis of IC/BPS as defined by the International Continence Society, were treated with a variable number of intravesical instillations of a hyaluronic acid-based drug. Three validated questionnaires were administered by telephone to all patients, before the beginning of the treatment and 6 months after the last administration of the drug. A total of 50 patients with symptoms compatible with the diagnosis of IC/BPS were included in the study. The median number of instillations performed is 4. For all questionnaires, the median value was significantly reduced following treatment with intravesical instillations (p = 0.000). The present study has shown that intravesical hyaluronic acid treatment results in both statistically and clinically significant symptomatic improvement, thereby improving the quality of life of patients with IC/BPS.

Effects of onabotulinum toxin-A injection on sexual function in women with refractory interstitial cystitis/bladder pain syndrome: A prospective study

OBJECTIVES

To determine the effect of intravesical onabotulinum toxin-A (BoNT-A) treatment on sexual functions in female patients with refractory interstitial cystitis/bladder pain syndrome (IC/BPS).

METHODS

Female patients with IC/BPS refractory to previous treatments were included in the study between January 2020 and April 2022. Patients were treated with the trigone-sparing injection (Group 1) or trigone-included injection (Group 2) techniques. 100 Units of BoNT-A was applied submucosally on 20 different points. The patients were evaluated with visual analog scale (VAS), O'Leary-Sant Interstitial Cystitis Symptom Index (ICSI), Interstitial Cystitis Problem Index (ICPI), Female Sexual Function Index (FSFI) questionnaires, 3-day voiding diary, uroflowmetry, and post-voiding residual volume analysis in the preoperative period, as well as on the 30th and 90th days postoperatively. For the repeated measurements, analysis of variance was used to assess the time-dependent variation across groups.

RESULTS

The baseline FSFI score of the patients was 15.96 ± 3.82. Following the treatment, the FSFI scores were 22.43 ± 4.93 and 24.41 ± 5.94 on the 30th and 90th days, respectively (p < .001). We observed statistically significant improvement in all FSFI subdomains (p < .05). Statistically significant improvements with treatment on ICSI, ICPI, and VAS scores were achieved (p < .05). Preoperative FSFI scores were similar in Group 1 and Group 2 (p = .147). While the preoperative FSFI scores were 17.00 ± 3.73 and 14.84 ± 3.72 for Group 1 and Group 2, respectively, the scores after the treatment were 22.85 ± 5.01 and 21.98 ± 5.01 on the 30th day, and 24.62 ± 6.06 and 24.19 ± 6.05 on the 90th day postoperatively. Significant improvement was observed in FSFI scores with treatment, and no difference was observed between the two groups in terms of treatment response (p = .706).

CONCLUSIONS

Intravesical BoNT-A injection in the treatment of women with refractory IC/BPS improves sexual functions. It also significantly improves pain and symptom scores. Both trigone-sparing and trigone-including injections are similarly safe and effective.

Bladder pain syndrome and sexual function: a systematic review and meta-analysis

INTRODUCTION AND HYPOTHESIS

Bladder pain syndrome (BPS)/interstitial cystitis can adversely affect physical, mental, and sexual health. The aim of the systematic review is to compare sexual function between patients with BPS and healthy controls and to examine whether or not treatment of BPS improves sexual function.

METHODS

A literature search was conducted on Embase, Medline, and other databases. Studies comparing sexual function in BPS patients with healthy controls and before/after treatment were included. Where appropriate, data were pooled in a meta-analysis, using a random effects model and the standardised mean difference (SMD) was used for comparison.

RESULTS

Out of 384 studies initially identified, 26 studies met the inclusion criteria for the systematic review and 11 for the meta-analysis. Six studies compared sexual function in BPS cases with healthy controls. All studies found that the Female Sexual Function Index (FSFI) was worse in BPS cases than in controls. Pooled data from 5 studies showed that the SMD was -1.02 (CI -1.64, -0.4) in total FSFI scores between the cases and controls, p=0.001. Further analysis showed better sexual function in all FSFI subdomains in healthy controls. Five studies compared sexual function in BPS patients before treatment with after treatment. Pooled data from 3 studies showed an overall improvement in total FSFI score after intravesical treatment: SMD=0.69 (CI 0.23, 1.14), p=0.003. Further analysis showed improvement in all subdomains.

CONCLUSION

Our review suggests that sexual function might be worse in BPS patients than in the general population, but it seems to improve with intravesical BPS treatment.

Sexual dysfunction in women with interstitial cystitis/bladder pain syndrome: Do onabotulinum toxin-A injections improve sexual function?

INTRODUCTION

Interstitial cystitis/bladder pain syndrome (IC/BPS) has a negative impact on female sexual function. We aimed to evaluate the effect of intravesical botulinum toxin-A (BTX-A) injection on the improvement of sexual dysfunction and urinary symptoms using the multi-domain female sexual function Index (FSFI), interstitial cystitis symptom index (ICSI), and interstitial cystitis problem index (ICPI).

MATERIAL AND METHOD

The data of the 23 patients (study group) who received intravesical BTX-A with the diagnosis of IC/BPS were reviewed. Twenty-three age-matched healthy, sexually active women were determined as the control group. Patients received 100 U BTX-A submucosally injections, including the trigone. One hundred units of BTX-A were diluted to 20 cc 0.9% saline, and 1  cc was then applied submucosally on 20 different points of the bladder wall (5 U/1 mL per site). The study group was asked to fill out FSFI, ICSI, and ICPI, as well as the visual analog scale (VAS) and bladder diary before and 3 months after the treatment. Patients in the control group completed the same questionnaires once. The pre- and post-treatment questionnaire scores were compared in the study group. The study group's data were also compared to the control group.

RESULTS

Compared to the pretreatment period, the study group showed statistically significant improvement in the total FSFI score and each domain of the FSFI after BTX-A injection. The mean total FSFI score and three domains of FSFI (desire, lubrication, pain) reached to the score of the control group following BTX-A injection. Statistically significant improvements were also shown in scores of ICSI, ICPI, and VAS. (p < 0.05).

CONCLUSION

IC/BPS is associated with a very high incidence of sexual dysfunction. Intravesical BTX-A injection may provide significant improvement in sexual dysfunction in women with IC/BPS.

KİMYASAL SİSTİT MODELİNDE DEKSPANTHENOLÜN KORUYUCU ETKİSİNİN KLİNİK PRATİKTE KULLANILAN KONDROİTİN SÜLFAT VE HYALURONİK ASİT İLE KARŞILAŞTIRILMASI

Amaç: Bir kimyasal sistit hayvan modelinde intravezikal dekspantenol kullanımının mesane histolojisi ve inflamatuvar parametreler üzerindeki etkilerini klinik pratikte kullanılan kondroitin sülfat ve hyaluronik asit ile karşılaştırmak. Yöntemler: Her grupta 8 adet rat olacak şekilde 40 adet Wistar Albino rat 5 gruba ayrıldı. Bu gruplar; kontrol, kimyasal sistit (CC), CC+dekspantenol, CC+kondroitin sülfat ve CC+hyaluronik asit grupları olarak belirlendi. Deneysel sistit modeli intravezikal hidroklorik asit (0.2 mL of 0.4 NHCl) instilasyonu ile sağlandı. Kontrol grubundaki sıçanlara sadece %0.9 NaCl instilasyonu yapıldı. Tedavi gruplarından CC+dekspantenol grubuna 500 mg/kg dexpanthenol içeren 2 mL 0.9% NaCl solüsyonu,. CC+kondroitin sülfat grubuna 2 mL kondroitin sülfat (0.2%) ve CC+hyaluronik asit grubuna 2 ml hyaluronik asit(%0.5) instile edildi. Tedavi gruplarına verilen bu ajanlar dört hafta boyunca haftada iki kez uygulandı. CC ve kontrol gruplarında da benzer stres oluşturmak için aynı süre boyunca %0.9 NaCl instilasyonu yapıldı.Tedavilerin bitiminden bir gün sonra abdominal insizyon ile sistektomi yapıldı. Kalplerinden kan alındıktan sonra ratlar sakrifiye edildi. Mesane dokusu histopatolojik değişiklikler açısından incelendi. Serumda ve dokuda MDA,SOD ve prolidaz değerlerine bakıldı. Bulgular: Dokuların histopatolojik incelenmesinde dekspantenol tedavisi alan grubun lökosit sayısının sistit grubuna göre azaldığı görüldü (p0.05). Tedavi gruplarının MDA, SOD ve prolidaz değerlerindeki bu olumlu düzelme ile sistit oluşturulmayan kontrol grubundaki seviyelere yaklaştığı görüldü. Sonuç: İntertisyel sistit modelinde dekspantenolün klinikte kullanılan mevcut ajanlar gibi oksidatif stresi azaltması, anti-oksidatif etkiyi arttırması,doku düzeyindeki enflamasyonu baskılaması ve maliyetinin düşük olması nedeniyle gelecekte intertisyel sistitte tek başına yada kombine tedavide yer bulacağı kanaatindeyiz.

Urinary Biomarkers in Interstitial Cystitis/Bladder Pain Syndrome and Its Impact on Therapeutic Outcome

Interstitial cystitis/bladder pain syndrome (IC/BPS) is defined as a chronic bladder disorder with suprapubic pain (pelvic pain) and pressure and/or discomfort related to bladder filling accompanied by lower urinary tract symptoms, such as urinary frequency and urgency without urinary tract infection (UTI) lasting for at least 6 weeks. IC/BPS presents significant bladder pain and frequency urgency symptoms with unknown etiology, and it is without a widely accepted standard in diagnosis. Patients’ pathological features through cystoscopy and histologic features of bladder biopsy determine the presence or absence of Hunner lesions. IC/PBS is categorized into Hunner (ulcerative) type IC/BPS (HIC/BPS) or non-Hunner (nonulcerative) type IC/BPS (NHIC/BPS). The pathophysiology of IC/BPS is composed of multiple possible factors, such as chronic inflammation, autoimmune disorders, neurogenic hyperactivity, urothelial defects, abnormal angiogenesis, oxidative stress, and exogenous urine substances, which play a crucial role in the pathophysiology of IC/BPS. Abnormal expressions of several urine and serum specimens, including growth factor, methylhistamine, glycoprotein, chemokine and cytokines, might be useful as biomarkers for IC/BPS diagnosis. Further studies to identify the key molecules in IC/BPS will help to improve the efficacy of treatment and identify biomarkers of the disease. In this review, we discuss the potential medical therapy and assessment of therapeutic outcome with urinary biomarkers for IC/BPS.

Interstitial Cystitis/Bladder Pain Syndrome Treatment: A Systematic Review of Sexual Health Outcomes

INTRODUCTION

Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic condition with highly prevalent negative consequences on sexual health and quality of life. However, there is a lack of consensus regarding treatment options that improve sexual function in this population. This study aims to review the current literature on sexual health outcomes in patients treated for IC/BPS.

METHODS

We conducted a systematic review of the literature on sexual health outcomes after treatment of IC/BPS. PubMed, MEDLINE, EMBASE, CINHAL, and Google Scholar were queried, and results were screened using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Inclusion criteria for this review were: IC/BPS was clearly defined in the cohort, sexual health outcomes were measured as the primary or a secondary outcome, manuscript was written in English from January 2000 to April 2020. Studies on cystectomy were excluded as radical surgery is a confounding factor for sexual dysfunction.

RESULTS

We identified 1611 items with our search algorithm and determined that 10 studies ultimately met inclusion criteria. 4 of 10 studies reported improved sexual function after treatment. 4 of 10 studies were randomized control trials and reported no improvement in sexual function in each of the therapies that were investigated. Data were conflicting regarding the effect of intravesical hyaluronic acid.

CONCLUSION

This systematic review demonstrates the lack of focus on sexual health outcomes in studies of the IC/BPS. There was no strong evidence that any modality used to treat IC/BPS also improves sexual function despite the higher prevalence in this population. Chen A, Shahiyan RH, Anger J. Interstitial Cystitis/Bladder Pain Syndrome Treatment: A Systematic Review of Sexual Health Outcomes. Sex Med Rev 2021;xx:xx-xx.

Factors associated with treatment outcomes after intravesical hyaluronic acid therapy in women with refractory interstitial cystitis: A prospective, multicenter study

BACKGROUND

Bladder instillation of hyaluronic acid (HA) is an acceptable treatment for bladder pain syndrome/interstitial cystitis (BPS/IC). The treatment is limited by a high proportion of non-responders (~30%-40%). Here, we aimed to evaluate predisposing factors associated with treatment outcomes.

METHODS

This is a prospective multicenter study. We enrolled a total of 137 (out of 140) women with refractory IC. They all underwent a standard protocol of 6-month intravesical HA therapy (initial 4 weeks, once weekly, followed by once monthly). To assess the outcomes, we used the pain Visual Analog Scale (Pain-VAS), Interstitial Cystitis Symptom and Problem Index (ICSI & ICPI), and a scaled Global Response Assessment (GRA).

RESULTS

The age of patients was 47.6 ± 27.5 (range 24-77) years. We found statistically significant improvement (p < 0.001) in the Pain-VAS and the ICSI & ICPI scores both after the initial 4-weekly instillations and at the end of 6-month treatment. Those who reported moderate/marked improvement on GRA at the 2 follow-up visits were considered responders: 39.4% (n = 54) at the first follow-up, and 59.9% (n = 82) at the second follow-up. No remarkable side effect was noted. After statistical analyses, treatment outcomes on GRA were positively associated with baseline functional bladder capacity and with Pain-VAS scores. The initial treatment responses optimally (p < 0.001) predicted final treatment outcomes (McNemar).

CONCLUSION

Intravesical HA therapy is safe and effective for most (~60%) of our patients with refractory IC. Functional bladder capacity and Pain-VAS scores before treatment, and the early treatment responses are helpful predictors of treatment outcomes.

Sexual dysfunction in women with interstitial cystitis/bladder pain syndrome: A case-control study

Introduction:

Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic debilitating illness characterized by urinary frequency, urgency, and pelvic pain. IC/BPS adversely affects the sexual well-being of the patients. We used the Female Sexual Function Index (FSFI) to compare sexual dysfunction (FSD) in women with IC/BPS versus controls in an Indian cohort where such data is lacking.

Materials and Methods:

This case–control study was designed to compare the FSDs in patients with IC/BPS to that of asymptomatic controls. Pelvic Pain and Urgency/Frequency (PUF) Questionnaire scores and FSFI scores were used as tools for this study.

Results:

Thirty-two patients were recruited in each group. Patients with IC/BPS had a significantly higher PUF score as compared to the control group (7.843 vs. 3.656). These patients also scored worse on the total adjusted FSFI score (18.678 ± 4.531 vs. 28.05 ± 4.318; P < 0.05) and individually in all domains of sexual function. Twenty-nine (90.62%) patients of the IC/BPS group had FSD as compared to 12 (37.5%) of patients in the control group. Pain was the most common presenting complaint and was seen in 65.25% of patients in the IC/BPS group as compared to only 31.25% of patients in the control group.

Conclusion:

The results of our study show that women with IC/BPS have more pain and sexual dysfunction than controls.

Outcomes of intravesical chondroitin-sulfate and combined hyaluronic-acid/chondroitin-sulfate therapy on female sexual function in bladder pain syndrome

INTRODUCTION AND HYPOTHESIS

Our aim was to determine the efficacy of intravesical chondroitin sulfate (CS) and combined hyaluronic acid/chondroitin sufate (HA/CS) treatment and their effects on sexual function of females with interstitial cystitis/bladder pain syndrome (IC/BPS).

METHODS

A total of 68 female patients with IC/BPS between 2012 and 2018 were reviewed. Thirty-three patients were treated with combined HA/CS and 28 patients were treated with CS. Instillations were performed weekly for the first month, biweekly for the second month, and monthly in the third and fourth months. Before and after the sixth month of the treatment, all patients were evaluated with the Female Sexual Function Index (FSFI), visual analog pain scale (VAS), interstitial cystitis symptom index (ICSI), interstitial cystitis problem index (ICPI), and voiding diary, and changes were recorded.

RESULTS

A statistically significant improvement was determined for FSFI, VAS, ICSI, and ICPI scores after treatment in both groups. Among baseline characteristics, a weak but significant negative correlation was determined only between the ICSI score improvement and age (rho: -0.38; p = 0.03) on statistical analysis. Compared with CS, combined HA/CS treatment was superior in terms of ICSI, ICPI, and daytime and nighttime frequency improvement (0.042, 0.038, 0.039, and 0.045; respectively). All domains of the sexual function index were significantly improved at the sixth month of intravesical therapy in both groups. A statistical difference was not found between the two groups.

CONCLUSIONS

Although it seems that intravesical HA/CS combination is superior to CS alone in terms of symptom reduction, both of them have beneficial effects on sexual function.

Sexual Dysfunction in Interstitial Cystitis

Background/Aims

Interstitial cystitis (IC)/bladder pain syndrome (BPS) is a debilitating disease characterized with urgency, frequency, and pelvic pain affecting especially women. Sexual dysfunction in female patients with IC/BPS consists of dyspareunia, altered sexual desire and orgasm frequency and insufficient lubrication is reported to negatively affect the patient's quality of life. In the present study, we aimed to determine the association between IC/BPS and sexual dysfunction and improvement in sexual dysfunction related to given treatments.

Methods

A PubMed/Medline and EMBASE search was conducted using keywords: "interstitial cystitis", "sexual dysfunction", and "bladder pain syndrome".

Conclusion

Several studies have been conducted to determine the relation between IC/BPS and sexual dysfunction. And also limited studies focusing on IC/BPS specific treatments reported significant improvements in sexual function after either oral or intravesical treatment. However, given the used different questionnaires, study protocols, patient characteristics, previous treatments and follow-up period, it is not possible to make a head-to-head comparison of the treatment effects on sexual function. Further, randomized controlled studies are needed to confirm these results and make a comparison between effects of various treatment modalities on sexual functioning in IC/BPS.

From bladder to systemic syndrome: concept and treatment evolution of interstitial cystitis

Interstitial cystitis, presently known as bladder pain syndrome, has been recognized for over a century but is still far from being understood. Its etiology is unknown and the syndrome probably harbors different diseases. Autoimmune dysfunction, urothelial leakage, infection, central and peripheral nervous system dysfunction, genetic disease, childhood trauma/abuse, and subsequent stress response system dysregulation might be implicated. Management is slowly evolving from a solo act by the end-organ specialist to a team approach based on new typing and phenotyping of the disease. However, oral and invasive treatments are still largely aimed at the bladder and are based on currently proposed pathophysiologic mechanisms. Future research will better define the disease, permitting individualization of treatment.