Chronic pelvic pain in men

Biopsychosocial approach to male chronic pelvic pain syndrome: recent treatments and trials

INTRODUCTION

Chronic pelvic pain syndrome (CPPS) is a common urologic condition that can cause significant disability in affected individuals. Physiologic explanations of chronic pain are often incomplete; appropriate management of CPPS includes recognition of biological, psychological, and social elements, known as the biopsychosocial model.

OBJECTIVE

The aim of this narrative review is to investigate treatments for men with CPPS, with a special focus on those utilizing the biopsychosocial model of care.

METHODS

A comprehensive literature search was conducted on the electronic databases PubMed, Embase, and Cochrane Library, using relevant Medical Subject Heading terms and keywords related to CPPS treatments. The search was limited to studies published in English from inception to January 2023. Additionally, reference lists of selected studies were manually reviewed to find studies not identified by the initial search. Studies were included if they investigated pharmacologic or nonpharmacologic treatments for men with CPPS.

RESULTS

A total of 30 studies met the inclusion criteria. Antibiotics, α-blockers, nonsteroidal anti-inflammatory drugs, gabapentinoids, antidepressants, and phosphodiesterase type 5 inhibitors were among the pharmacologic agents included in trials attempting to reduce symptoms of male CPPS. Studies that focused on treating CPPS without medication included interventions such as shockwave therapy, acupuncture, physical therapy, botulinum toxin, cryotherapy, electrotherapy, exercise, and cognitive behavioral therapy.

CONCLUSION

α-Blockers and nonsteroidal anti-inflammatory drugs have shown promising results in treating CPPS in men, while the effectiveness of antibiotics remains controversial. Antidepressants and phosphodiesterase type 5 inhibitors may also be useful in decreasing symptoms in patients with CPPS. Treatments such as pelvic floor muscle therapy, acupuncture, shockwave therapy, and cognitive behavioral therapy must be considered effective complements to medical management in men with CPPS. While these interventions demonstrate benefits as monotherapies, the individualization and combination of treatment modalities are likely to result in reduced pain and improved quality of life.

Müllerian Cyst: An Uncommon Etiology of Chronic Pelvic Pain Syndrome in Men

Chronic pelvic pain syndrome (CPPS) in men is a complex pathological entity with a delicate nosological diagnosis and multiple etiological hypotheses dominated by urological causes. The Müllerian cyst has an embryological origin and is part of an organic anomaly of the male urogenital tract, incidentally detected during an initial infertility examination or in the presence of non-specific urinary symptoms. By its mass effect, it puts tension on the pelvic floor muscles and induces a stimulation of nerves which could explain its implication in the CPPS. Through this case report and literature review, we will clarify the etiopathogenesis and the diagnosis of CPPS as well as the approach to follow for better therapeutic management.

Review: Pelvic nerves - from anatomy and physiology to clinical applications

A prerequisite for nerve-sparing pelvic surgery is a thorough understanding of the topographic anatomy of the fine and intricate pelvic nerve networks, and their connections to the central nervous system. Insights into the functions of pelvic nerves will help to interpret disease symptoms correctly and improve treatment. In this article, we review the anatomy and physiology of autonomic pelvic nerves, including their topography and putative functions. The aim is to achieve a better understanding of the mechanisms of pelvic pain and functional disorders, as well as improve their diagnosis and treatment. The information will also serve as a basis for counseling patients with chronic illnesses. A profound understanding of pelvic neuroanatomy will permit complex surgery in the pelvis without relevant nerve injury.

Terazosin or baclofen in young men with chronic orchialgia: A cohort study of 499 patients

PURPOSE

We aimed to investigate the comparative efficacy of terazosin and baclofen in young men with chronic orchialgia using National Institutes of Health Chronic Prostatitis Symptom Index measurement.

PATIENTS AND METHODS

Of 499 young men with chronic orchialgia, 255 received a daily 2 mg terazosin at bedtime and 244 received 10 mg baclofen during a period of 3 months. A daily 10-min hot-tub hip-bath rest was administered for all patients. Moreover, all patients with grade 3 and 18 patients with grade 2 varicocele underwent varicocelectomy. The National Institutes of Health Chronic Prostatitis Symptom Index score was assessed at baseline and 3 months later.

RESULTS

Both terazosin and baclofen groups experienced a significant reduction in mean National Institutes of Health Chronic Prostatitis Symptom Index score (24.78 and 24.81 at baseline to 19.68 and 19.60 after the treatment for terazosin and baclofen groups, respectively). However, there was no significant difference between the groups with regard to post-treatment National Institutes of Health Chronic Prostatitis Symptom Index score after adjustment for the pre-treatment score (p = 0.987). A total of 85 patients (33.4%) in terazosin group and 74 patients (30.3%) in baclofen group underwent varicocelectomy. Addition of the varicocelectomy to the treatment as a multimodal approach had no further improvement in the National Institutes of Health Chronic Prostatitis Symptom Index score.

CONCLUSION

Although a significant reduction was observed in mean National Institutes of Health Chronic Prostatitis Symptom Index score for both terazosin and baclofen groups, there was no significant difference between the treatments. Moreover, addition of varicocelectomy to terazosin or baclofen could not significantly decrease National Institutes of Health Chronic Prostatitis Symptom Index score; thus, varicocelectomy may not be appropriate for men who have some success with medical management. Further randomized studies are warranted.

Chronic orchialgia: epidemiology, diagnosis and evaluation

Chronic orchialgia is a vexing condition defined as chronic or intermittent scrotal pain lasting at least three months that significantly interferes with daily activities. There are currently no guidelines regarding the diagnosis and management of this condition despite it being the cause of 2.5-4.8% of urologic clinic visits. Men often present with chronic orchialgia in their mid to late 30s, although the condition can present at any age. A broad differential diagnosis of chronic orchialgia includes epididymitis, testicular torsion, tumors, obstruction, varicocele, epididymal cysts, hydrocele, iatrogenic injury following vasectomy or hernia repair, and referred pain from a variety of sources including mid-ureteral stone, indirect inguinal hernia, aortic or common iliac artery aneurysms, lower back disorders, interstitial cystitis, and nerve entrapment due to perineural fibrosis; approximately 25-50% of chronic orchialgia is idiopathic in nature. In such cases, it is reasonable to consider psychological and psychosocial factors that may be contributing to chronic pain. Invasive testing is not recommended in the work-up of chronic orchialgia.

Orchialgia and the chronic pelvic pain syndrome

This review paper highlights the important health issue of orchialgia and the chronic pelvic pain syndrome. There are a number of specific and non-specific etiologies and different treatment options based on the sub-categorization of orchialgia. The focus of this article is on the specific etiologies of chronic orchialgia as well as non-specific scrotal pain, and the diagnostic evaluation and optimal management of these men. The clinician must be cautious about assuming that orchialgia is constitutive in the chronic pelvic pain syndrome, and must be diligent in ruling out specific etiologies for scrotal pain prior to managing orchialgia as a non-specific chronic pain syndrome.

Diagnostic laparoscopy and adhesiolysis: does it help with complex abdominal and pelvic pain syndrome (CAPPS) in general surgery?

This study was conducted to determine if lysis of bowel adhesions has a role in the surgical management of adhesions for treating complex abdominal and pelvic pain syndrome.

Abdominal pains secondary to adhesions are a common complaint, but most surgeons do not perform surgery for this complaint unless the patient suffers from a bowel obstruction. The purpose of this evaluation was to determine if lysis of bowel adhesions has a role in the surgical management of adhesions for helping treat abdominal pain. The database of our patients with complex abdominal and pelvic pain syndrome (CAPPS) was reviewed to identify patients who underwent a laparoscopic lysis of adhesion without any organ removal and observe if they had a decrease in the amount of abdominal pain after this procedure. Thirty-one patients completed follow-up at 3, 6, 9, and 12 months. At 6, 9, and 12 months postoperation, there were statistically significant decreases in patients' analog pain scores. We concluded that laparoscopic lysis of adhesions can help decrease adhesion-related pain. The pain from adhesions may involve a more complex pathway toward pain resolution than a simple cutting of scar tissue, such as “phantom pain” following amputation, which takes time to resolve after this type of surgery.

Chronic pelvic pain in women: etiology, pathogenesis and diagnostic approach

Chronic pelvic pain (CPP), defined as non-cyclic pain of 6 or more months, is a frequent disorder that may negatively affect health-related quality of life. In women several causes are recognised, although in a not negligible proportion of patients a definite diagnosis cannot be made. Different neurophysiological mechanisms are involved in the pathophysiology of CPP. Pain may be classified as nociceptive or non-nociceptive. In the first case the symptom originates from stimulation of a pain-sensitive structure, whereas in the second pain is considered neuropatic or psychogenic. Patients history is crucial and is generally of utmost importance for a correct diagnosis, being sometimes more indicative than several diagnostic investigations. The main contributing factors in women with CPP can still be identified by history and physical examination in most cases. Many disorders of the reproductive tract, urological organs, gastrointestinal, musculoskeletal and psycho-neurological systems may be associated with CPP. Excluding endometriosis, the most frequent causes of CPP are: post-operative adhesions, pelvic varices, interstitial cystitis and irritable bowel syndrome. CPP is a symptom, not a disease, and rarely reflects a single pathologic process. Gaining women's trust and developing a strong patient-physician relationship is of utmost importance for the long-term outcome of care.

Quantifying symptoms in men with interstitial cystitis/prostatitis, and its correlation with potassium-sensitivity testing

OBJECTIVE

To determine whether men previously diagnosed with prostatitis also have pathology originating in the bladder.

PATIENTS, SUBJECTS AND METHODS

We administered the pelvic pain and urgency/frequency (PUF) questionnaire and the potassium-sensitivity test (PST) to 50 patients with prostatitis presenting in urological and primary care, and to 14 controls. In a separate control group of 22 men, the urethra was irrigated with KCl or NaCl (11 each) before and after experimental injury of the urethral mucosa.

RESULTS

All 50 patients with prostatitis had PUF scores of > or = 7; 77% were positive for the PST. All 14 controls had PUF scores of 1 or 0 and a negative PST. In the urethral irrigation study in controls, KCl but not NaCl provoked urethral pain after mucosal injury. Before injury, neither KCl nor NaCl caused symptoms.

CONCLUSION

The high rate of positive PST in patients with "classic" prostatitis indicates that pathology originating in the bladder may be an important source of symptoms in most. In patients with prostatitis and female patients with interstitial cystitis, symptoms may arise not from separate disease entities but from a continuum of epithelial dysfunction and potassium cycling that may be present throughout the lower urinary tract.

Adhesions in patients with chronic pelvic pain: A role for adhesiolysis?

OBJECTIVE

To review the relation between adhesions and pelvic pain and the effectiveness of adhesiolysis in pain control.

DESIGN

Selective review of the literature.

PATIENT(S)

Patients with pelvic pain and/or undergoing adhesiolysis for pain control.

RESULT(S)

Intraabdominal adhesions are accepted as etiologic factors for infertility and small bowel obstruction; however, the contribution of adhesions to pelvic pain is less clear. The most common laparoscopic findings in patients with and without pelvic pain were endometriosis and adhesions. Immunohistologic studies also have shown evidence of nerve fibers in adhesions that had been removed from patients with and without pelvic pain. Multiple adhesiolysis techniques have been employed, with outcome of surgical procedures ranging from no pain relief to pain relief in 90% of patients. However, randomized trials have shown that adhesiolysis is ineffective in improving the outcome of the treatment of pelvic pain, possibly because of adhesion reformation. Interestingly, adhesions are usually not described as an etiologic factor for pelvic pain in men; this might be related to a gender difference in pain perception or the possibility that adhesions per se do not cause pain.

CONCLUSION(S)

The correlation between pelvic pain and adhesions is uncertain. Adhesiolysis has not been shown to be effective in achieving pain control in randomized clinical studies.