12 Evaluation and pelvic floor management of urologic chronic pelvic pain syndromes
Introduction
Urologic disorders and pelvic pain present an obvious relationship. A large proportion of the human population has endured pain or discomfort of a simple urinary tract infection. And one of the earliest adventures in human surgical intervention arose in the centuries BC as the Greeks ‘cut for stone’ to relieve the obstruction and pain of urinary bladder calculi. However, now that most of the urogynaecologic organ maladies of infection, neoplasia and obstruction are understood, we are still left with a noisome bag of discomforts lacking any clear pathogenesis. These are the urologic chronic pelvic pain syndromes (UCPPS). The majority of these conditions arise from either a possible urinary bladder source known as bladder pain syndrome/interstitial cystitis (BPS/IC) or prostate source known as prostate pain syndrome (PPS), named chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) in the United States. The European Association of Urology attempted to update and provide a classification of pelvic pain disorders to suggest avenues for further management (Fall et al. 2010). Their pelvic pain descriptions fit into neat little boxes of urological, gynaecological, anorectal, neuromuscular and ‘other’ categories. These non-malignant pain conditions or syndromes perceived in structures related to the pelvis of both males and females do not deserve more specific diagnoses because the aetiology and pathogenesis remains a mystery – ‘a riddle wrapped in a mystery inside an enigma’ – and we depend on a complex symptomatic analysis to help guide us in evaluation and therapy. Regrettably the final common pathway often defaults as a referral to a pain management team. While awaiting elucidation of the cellular and molecular pathogenic mechanisms of UCPPS, we should rely on a diagnostic and therapeutic algorithm to direct logical evaluation and multimodal management. We must develop alternative ways of thinking about managing these urologic pain conditions. UCPPS needs to be viewed as much more than an organ-specific disease, but rather as a biopsychosocial disorder. The central problem is pain. Traditional biomedical treatment for UCPPS has failed (Anderson 2006). Antibiotics, α-blocking agents and anti-inflammatory agents as well as virtually all other pharmaceuticals have shown unimpressive outcomes in ameliorating the effects of these disorders. The biopsychosocial model of this condition rather than the biomedical model holds the key to understanding the pathogenesis and possible future treatments. Phenotyping is one current trend and we recommend it for approaching patients with these disorders allowing specific guideline development for multimodal therapy (Baranowski et al. 2008, Nickel et al. 2009, Shoskes et al. 2009). Some of the recent developments and approaches arose from clinical investigation and treatment protocols supported by the National Institutes of Health (NIH) in the United States over the past 10 years. A descriptive phenotyping classification allows understanding of epidemiology, aetiology and potential design of randomized clinical trials. Clinically identifiable domains suggested include: urinary, psychosocial, organ specific, infection, neurological/systemic and muscle tenderness (Nickel & Shoskes 2009, Shoskes et al. 2009) (Table 12.1).
Muscle groups | % Patients with trigger point tenderness, N = 72 |
---|---|
Internal muscles | |
Puborectalis/pubococcygeus | 90.3 |
Coccygeus | 34.7 |
Sphincter ani | 16.6 |
External muscles | |
Rectus abdominis | 55.6 |
External oblique | 52.8 |
Adductors | 19.4 |
Gluteus medius | 18.1 |
Gluteus maximus | 6.9 |
Bulbospongiosus | 12.5 |
Transverse perineal | 11.1 |
Urologic diagnostic evaluation
Prostate pain syndrome
Chronic prostatitis is an incorrect label; we are dealing with a variable set of pain conditions with no objective markers and multivariate symptoms. The disorder is not prostatocentric symptomatology and pain sites exist between the umbilicus to above the mid thigh. The European Community has promoted the term prostate pain syndrome (PPS) as a more generic term over the NIH category III chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). Still, it smacks of a prostatocentric approach, which is probably to be avoided for lack of evidence, and it encourages the use of antibiotics as standard therapy that clearly lacks efficacy. By definition, PPS is persistent discomfort or pain in the pelvic region with sterile specimen cultures and either significant or insignificant white blood cell counts in prostate specimens: semen, expressed prostatic secretion or urine collected after prostate massage. There does not appear to be any diagnostic or therapeutic advantage to differentiating between those patients with significant or insignificant leucocytes from the prostate (Schaeffer et al. 2002); however, in the author’s experience, men with no prostate inflammation appear to suffer greater degrees and longer duration of pelvic pain on average.
Medical history
We utilize symptom questionnaires and validated instruments to detail patient psychological issues. These tools help quantify the baseline, eventual progress and outcome of our management techniques. The most widely used research tool is the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI). An alternative type of CPPS symptom questionnaire – the Pelvic Pain Symptom Score (PPSS) – has also been useful in our hands. The PPSS expands the description of named painful anatomical locations and grades the severity of pain (0 to 4+); it includes urinary symptoms that mimic the International Prostate Symptom Score (IPSS), and scores sexual dysfunction aspects of the patient condition as a separate domain. Our group utilized this questionnaire in the treatment outcome analyses of pelvic floor therapy (Anderson et al. 2005, 2006). We have also used other psychosocial instruments including Brief Symptom Inventory, Beck Anxiety, and Perceived Stress Scale to study neuroendocrine psychiatric influences associated with CPPS (Anderson et al. 2008).
Physical examination
Prostatic massage has been utilized as treatment for CP by several generations of urologists, particularly prior to the advent of antibiotics. In a report from a popular Philippine study, repeated prostatic massages reveal occult micro-organisms. Therapeutic benefit from massage derives from expression of poorly emptying ductal acini and may diminish smooth muscle prostatic pressure. Some have proposed massage plus antibiotic treatment (Shoskes & Zeitlin 1999). In his study, prostate massage plus antibiotics for 2–8 weeks produced 40% resolution of symptoms, 20% significant improvements; however, 40% had no improvement. There was no correlation between inflammatory content and bacterial cultures. Our opinion favours repetitive massage of the prostate, not for emptying the gland, but rather to relieve pelvic tension and release myofascial TrPs. We continue to be extremely sceptical of the concept of occult bacteria that need to be ‘massaged out’.
Imaging of the prostate in chronic prostatitis
We recommend transrectal ultrasound (TRUS) to image the prostate gland. It has not gained wide acceptance as a method of evaluation for PPS but may provide valuable information demonstrating inflamed tissue, the presence of stones in the ducts (representing urinary mineral deposits), swelling and thickening of seminal vesicles (semen storage organs behind the prostate) and accurate measurement of the size of the gland. Abdominal ultrasound and CT are inaccurate and magnetic resonance of the prostate is not cost-effective. Many urologists have observed intraprostatic calcifications on TRUS. Older men (55+) develop benign prostatic hyperplasia (BPH) and it commonly associates with PPS. Most workers believe the ultrasound hyperdense areas represent deposits of urinary metabolite crystals and inspissated secretions within the ducts. These concretions are commonly seen exuding from the peripheral zone of the prostate at the time of transurethral resection. It has been noted, however, that a substantial percentage of younger men with chronic prostate or pelvic pain have such calcifications (Geramoutsos et al. 2004). Shoskes et al. (2007) imaged 47 men with PPS symptoms averaging 60 months and reported 47% of them had such calcifications. There was no difference in the CPSI score between those who did or did not have the finding; however, the men with stones had less discomfort and greater leucocyte presence.