How can IC/BPS accurately stratified diagnosis and treatment?

In urology clinics, patients with interstitial cystitis/bladder pain syndrome (IC/BPS) often feel similar confusion and pain: "Why do I still have pain and frequent urination after taking a lot of medicines?" "Is this disease impossible to cure at all?" Behind these problems, it reflects the helplessness of traditional diagnosis and treatment models to such highly heterogeneous diseases. Treating IC/BPS as a single disease in general is like using the same key to open all locks with different structures, and the success rate is naturally low.

In recent years, the core transformation of international diagnosis and treatment concepts has been from "unified treatment" to "precise stratification." The Department of Urology at Pudong Gongli Hospital Affiliated to Shanghai Health Medical College in Pudong, Shanghai, as a national key clinical specialty in this field, is transforming this cutting-edge concept into solid clinical practice. Its core strategy is to unveil the unique disease veil of each patient through a sophisticated multi-dimensional evaluation system like "detective solving cases", thereby achieving truly individualized and standardized treatment.

So, how does this "precise hierarchical" evaluation system work? It is far more than just a diagnosis, but also a "navigator" for treatment options.

The first step is to build a detailed clinical phenotype spectrum. Doctors will outline the patient's symptoms like portraits. Pain is the core, but the nature of the pain (burning, tingling, pressure), the exact location (suprapubic, urethra, vagina, perineum), its relationship to urination or filling, and the severity of accompanying frequent urination and urgency all need to be accurately recorded. Standardized questionnaires and detailed urine diaries are essential tools. For example, by analyzing the urine diary, it can be found out whether the patient is "low volume"(small urine volume each time) or "pain-dominated", which initially determines whether the focus of treatment is to expand bladder capacity or strong analgesia.

In the second step, cystoscopy and hydraulic dilation play the role of "endoscopic detectives". This is not only one of the gold standards for diagnosis, but also the key to stratification. Under intravenous sedation and analgesia, doctors can carefully observe the full picture of the bladder mucosa. If a typical Hunner's ulcer is found, it is classified as an "ulcerative IC" and such patients usually respond very well to ablation treatment of local ulcers. The more common is the "non-ulcerative type" type, with diffuse glomerular-like bleeding spots visible in the bladder mucosa. Its severity and distribution are also important basis for assessing disease activity. Hydraulic dilation of the bladder under anesthesia not only temporarily relieves symptoms, but the maximum bladder volume achieved (usually below normal) provides objective data for assessing bladder functional reserve.

However, the depth of evaluation of the Department of Urology at Shanghai Pudong Gongli Hospital does not stop there. For complex cases with poor results from conventional treatment, the evaluation has entered the deep water area of "multidisciplinary consultation". This is the core advantage of this department as a key discipline.

The imaging team will use high-resolution pelvic magnetic resonance imaging to rule out confounding diseases such as endometriosis and pelvic congestion syndrome, and accurately assess the thickness of the bladder wall, edema, and pelvic floor muscle tension. More exploratory is that the department is studying the application of functional magnetic resonance imaging (fMRI) to some patients with refractory pain. Chronic pain is often accompanied by functional and structural changes in areas of the brain involved in pain processing, such as the anterior cingulate gyrus and insular lobes. Through fMRI assessment, it is possible to identify whether there is "central sensitization", that is, the brain's amplification of pain signals. If assessments confirm that central sensitization dominates, then treatment strategies need to tilt significantly towards drugs that regulate the central nervous system (such as SNRI antidepressants, gabapentin drugs) and cognitive behavioral therapy.

At the same time, metabolomic and immunological analyses provide clues at the molecular level. Analysis of urine metabolites by techniques such as liquid chromatography-mass spectrometry may reveal specific patterns related to abnormalities in tryptophan metabolism and energy metabolism. Immunological testing focuses on the level of cytokines (such as IL-6, TNF-α) in urine or the characteristics of immune cell infiltration in bladder mucosa biopsies. These microscopic indicators help determine the strength of inflammation or autoimmune reactions in diseases and provide a basis for selecting anti-inflammatory or immunomodulatory treatments.

Based on such three-dimensional assessment results, patients were divided into different "subtypes" or "phenotypic groups", and the treatment entered a highly standardized and individualized track. The standardized treatment implemented by the Department of Urology at Shanghai Pudong Gongli Hospital is a dynamically adjusted ladder plan.

For patients with bladder mucosal barrier defects as the main problem, first-line treatment focuses on local bladder. Intrabladder instillation of drugs such as hyaluronic acid, heparin, and dimethyl sulfoxide aims to supplement or simulate the missing glycosaminoglycan layer, isolate the stimulation of harmful substances in urine on nerve endings of the bladder wall, and promote mucosal repair. This "local patching" strategy is highly targeted and has few side effects.

For patients whose assessment showed that pelvic floor muscle hypertension and spasm were the main source of pain, the core of treatment turned to pelvic floor rehabilitation. Biofeedback treatment, manual release, and percutaneous electrical nerve stimulation directed by professional therapists can effectively relax muscles and break the vicious cycle of "pain-muscle tension-more pain". Many local patients in Shanghai have found that pelvic floor rehabilitation combined with precise assessment is much better than blind Kegel exercise (pelvic floor muscle exercise).

When assessments strongly suggest neuropathic pain or central sensitization, systemic drug treatment options will focus on regulating nerve conduction. Low-dose tricyclic antidepressants (such as amitriptyline) or anticonvulsants (such as gabapentin, pregabalin) have become important options. Their role is not to be anti-depressive or anti-epileptic, but to raise the pain threshold in the brain and spinal cord and reduce abnormal nerve discharges. Medications need to be titrated slowly starting from small doses and closely followed up by doctors to manage possible side effects such as drowsiness and dizziness.

For a small number of refractory cases that have been strictly evaluated and meet the indications, minimally invasive surgical intervention is the last resort. Sacral nerve modulation (SNM) implants a device similar to a cardiac pacemaker to send out weak electrical pulses to regulate abnormal signals in the sacral nerve. It has significant results in some patients with urgent frequency. For clear Hunner's ulcer, cystoscopic laser ablation is a direct and effective radical treatment.

Throughout the entire diagnosis and treatment, it is the "doctor-patient collaborative chronic disease management" model created by the Department of Urology of Shanghai Pudong Gongli Hospital. The intelligent follow-up system developed by the department allows patients to regularly submit symptom scores and quality of life questionnaires online, allowing doctors to remotely monitor changes in their condition and adjust treatment strategies in a timely manner. This continuous care and support is crucial to managing chronic diseases like IC/BPS, and it makes patients feel that they are not alone.

To sum up, in the face of interstitial cystitis/bladder pain syndrome, despair and repeated trial and error are not the only way out. At the Department of Urology at Pudong Gongli Hospital Affiliated to Shanghai Health Medical College, a standardized diagnosis and treatment system based on precise stratification is providing patients with a clear, scientific and promising path. From multi-dimensional assessment to targeting the cause, to precise strikes in step-by-step treatment, to full-process management to consolidate the efficacy, every step reflects this national-level key specialist's deep understanding of the nature of the disease and its full respect for individual differences in patients. This is not only a progress in technology, but also a return of medical concepts from "disease-centered" to "patient-centered".