Interstitial Cystitis Association C M E / C E M o n o g r a p h Conquering IC: Identification and Management Strategies Contributing Authors Eman A. Elkadry, MD Jennifer Yonaitis Fariello, MSN, CRNP Jeffrey G. Proctor, MD www.ichelpcme.org Developed in Cooperation with A Continuing Education Company & NPA Conquering IC: Identification and Management Strategies Table of Contents CME/CE Information ..............................................................................................................................................2 Faculty and Disclosures.........................................................................................................................................3 Introduction..............................................................................................................................................................5 Identification of Interstitial Cystitis...................................................................................................................9 Management Strategies for IC .........................................................................................................................12 Support for Patients.............................................................................................................................................17 Conclusion ..............................................................................................................................................................18 References...............................................................................................................................................................19 ❨1❩ Conquering IC: Identification and Management Strategies CME/CE Information TARGET AUDIENCE This activity is intended for health care providers who are involved in the diagnosis and treatment of interstitial cystitis, including primary care providers, urologists, obstetricians, and gynecologists. SPONSOR This activity is sponsored through an educational collaboration by Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, and Nurse Practitioner Alternatives. STATEMENT OF NEED Interstitial cystitis is a complicated and poorly understood urological condition, with over 4 million Americans impacted by this syndrome. Without a definitive diagnostic test, patients may go undiagnosed and untreated for several years. This educational initiative is designed to increase awareness about interstitial cystitis and provide clinicians with strategies for the diagnosis and management of this chronic condition. ACCREDITATION STATEMENT The France Foundation is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. EDUCATIONAL ACTIVITY LEARNING OBJECTIVES Upon completion of this course, the participants should be able to: • Describe interstitial cystitis, including the epidemiology, pathophysiology, and disease course • Recognize signs and symptoms of IC, and employ the appropriate assessments involved in establishing an early diagnosis • Identify appropriate individualized management strategies for patients with IC • Utilize tools and resources to educate, counsel and support patients with the ongoing management of IC Release Date: May 2013 • Expiration Date: May 31, 2015 Estimated Time to Complete Activity: 1 hour CREDIT DESIGNATION Physicians: The France Foundation designates this enduring material for a maximum of 1.0 AMA PRA Category 1 Credit(s)™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Nurses: Nurse Practitioner Alternatives is accredited as a provider of continuing nursing education by the American Nurses Credentialing Center's Commission on Accreditation. Awarded 1.0 contact hours of continuing nursing education for RNs and APRNs. Accreditation does not imply endorsement by Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, Nurse Practitioner Alternatives, or ANCC of recommendations or any commercial products discussed in conjunction with the educational activity. METHOD OF PARTICIPATION / HOW TO RECEIVE CREDIT There are no fees for participating in and receiving credit for this activity. Review the activity objectives and CME/CE information. Complete the CME/CE activity. Request CME/CE credit by going to www.IChelpCME.org/monograph and complete steps 5, 6, and 7. Complete the posttest. Complete the CME/CE evaluation/attestation form, which provides each participant with the opportunity to comment on how participating in the activity will affect their professional practice; the quality of the instructional process; the perception of enhanced professional effectiveness; the perception of commercial bias; and his/her views on future educational needs. 7. Your CME/CE certificate will be available for download. 1. 2. 3. 4. 5. 6. ❨2❩ Conquering IC: Identification and Management Strategies Faculty and Disclosures participating in this activity have disclosed to the participants any significant financial interest or other relationship with manufacturer(s) of any commercial product(s)/device(s) and/or provider(s) of commercial services included in this educational activity. The intent of this disclosure is not to prevent a person with a relevant financial or other relationship from participating in the activity, but rather to provide participants with information on which they can base their own judgments. The Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, and Nurse Practitioner Alternatives have identified and resolved any and all conflicts of interest prior to the release of this activity. CONTENT PLANNING COMMITTEE CONTENT FACULTY Eman A. Elkadry, MD Fellowship Director Division of Urogynecology Female Pelvic Medicine and Reconstructive Surgery Mount Auburn Hospital Cambridge, Massachusetts Clinical Instructor Obstetrics and Gynecology Harvard Medical School Boston, Massachusetts Jennifer Yonaitis Fariello, MSN, CRNP Female and Male Pelvic and Sexual Medicine The Pelvic and Sexual Health Institute Philadelphia, Pennsylvania ACTIVITY STAFF DISCLOSURES The reviewers, staff, or other members at the Interstitial Cystitis Association who control content have no relevant financial relationships to disclose. • Lee Claassen, CAE • Rhonda L. Garrett • Amy Lestition, CAE • Anita Roach • Linda Salin Jeffrey G. Proctor, MD Director of Interstitial Cystitis Georgia Urology Cartersville, Georgia PLANNING STAFF Wendy Scales, PhD Medical Director The France Foundation Old Lyme, Connecticut The planners, reviewers, editors, staff, or other members at The France Foundation who control content have no relevant financial relationships to disclose. • Melissa Austin • Jennifer Green • Lenna Levine • Heather Tarbox, MPH • Wendy Scales, PhD Laurie Scudder, DNP, NP Nurse Planner President Nurse Practitioner Alternatives Ellicott City, Maryland DISCLOSURES It is the policy of the Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, and Nurse Practitioner Alternatives to ensure balance, independence, objectivity, and scientific rigor in all its sponsored educational activities. All faculty, activity planners, content reviewers, and staff The reviewers, staff, or other members at American Urogynecologic Society who control content have no relevant financial relationships to disclose. • Michelle Zinnert, CAE The planner and reviewer at Nurse Practitioner Alternatives who controls content have no relevant financial relationships to disclose. • Laurie Scudder, DNP, NP ❨3❩ Conquering IC: Identification and Management Strategies FACULTY DISCLOSURE The following faculty has indicated she has no relationships with industry to disclose relative to the content of this CME/CNE activity: • Jennifer Yonaitis Fariello, MSN, CRNP DISCLAIMER The Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, and Nurse Practitioner Alternatives present this information for educational purposes only. The content is provided solely by faculty who have been selected because of recognized expertise in their field. Participants have the professional responsibility to ensure that products are prescribed and used appropriately on the basis of their own clinical judgment and accepted standards of care. The Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, Nurse Practitioner Alternatives, and Centers for Disease Control and Prevention assume no liability for the information herein. The following faculty have indicated they have relationships with industry to disclose relative to the content of this CME/CNE activity: • Eman Elkadry, MD has served as a consultant, and is a stock shareholder for Merck. • Jeffrey G. Proctor, MD has served on the scientific advisory board, and is a stock shareholder for Urigen Pharmaceuticals, Inc. He has received honoraria from Astellas Pharma US Inc, Janssen Pharmaceuticals Inc, and Watson Pharmaceuticals Inc. UNAPPROVED USE DISCLOSURE The Interstitial Cystitis Association, The France Foundation, American Urogynecologic Society, and Nurse Practitioner Alternatives require CME faculty (speakers) to disclose to the attendees when products or procedures being discussed are off-label, unlabeled, experimental, and/or investigational (not FDA approved); and any limitations on the information that is presented, such as data that are preliminary or that represent ongoing research, interim analyses, and/or unsupported opinion. Faculty in this activity may discuss information about pharmaceutical agents that is outside of US Food and Drug Administration approved labeling. This information is intended solely for continuing medical education and is not intended to promote off-label use of these medications. If you have questions, contact the medical affairs department of the manufacturer for the most recent prescribing information. SUPPORT ACKNOWLEDGMENT This activity is supported by the Cooperative Agreement Number 5U58DP002936-02 from The Centers for Disease Control and Prevention. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of The Centers for Disease Control and Prevention. PRIVACY POLICY The France Foundation protects the privacy of personal and other information regarding participants and educational collaborators. The France Foundation will not release personally identifiable information to a third party without the individual's consent, except such information as is required for reporting purposes to the ACCME and ANCC. The France Foundation maintains physical, electronic, and procedural safeguards that comply with federal regulations to protect against the loss, misuse or alteration of information that we have collected from you. Additional information regarding The France Foundation’s Privacy Policy can be viewed at http://www.francefoundation.com/privacy. CONTACT INFORMATION If you have questions about this educational activity, please contact The France Foundation at 860-434-1650 or info@francefoundation.com. ❨4❩ Conquering IC: Identification and Management Strategies Introduction Interstitial cystitis is generally thought of as urinary urgency, frequency, and bladder pain. Symptoms wax and wane, and can progress over time, particularly when untreated. Symptoms associated with interstitial cystitis range from mild to severe. The 2011 American Urological Association (AUA) guidelines refer to interstitial cystitis/bladder pain syndrome (IC/BPS) as “an unpleasant sensation (pain, pressure, discomfort) perceived to be related to the urinary bladder, associated with lower urinary tract symptoms of more than six weeks in duration, in the absence of infection or other identifiable causes.”1 This definition comes from a 2008 international consensus conference sponsored by the Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction.2 For clinical research purposes, the term “interstitial cystitis” was used only for those patients meeting very strict criteria suggested by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).3 However, it was recognized that this strict definition was not appropriate for clinical practice, as 60% of patients would not in fact meet such strict criteria, leaving them misdiagnosed or undiagnosed.4 This condition has also been referred to as “painful bladder syndrome” and “hypersensitivity bladder syndrome.” Various theories regarding the etiology of IC will be discussed in subsequent paragraphs. For the purposes of this review, we will use “IC” as an umbrella term to encompass the broad definition as reflected in the current AUA guidelines. The 2011 AUA guidelines refer to interstitial cystitis/bladder pain syndrome as “an unpleasant sensation (pain, pressure, discomfort) perceived to be related to the urinary bladder, associated with lower urinary tract symptoms of more than six weeks in duration, in the absence of infection or other identifiable causes” Historically, IC has been an under-reported and under-recognized condition. Varied definitions for IC have complicated efforts to establish prevalence estimates for this chronic condition. Results from the third National Health and Nutrition Examination Surveys (NHANES III) indicated greater prevalence of IC in women vs. men (850 per 100,000 women vs. 60 per 100,000 men).5 Using standard case definitions (one with high sensitivity, and one with high specificity), the RAND Interstitial Cystitis Epidemiology (RICE) study (2-staged telephone-based survey) concluded that between 2.7 and 6.5% of adult women in the US (or 3.3 to 7.9 million) have symptoms consistent with IC.6 Recent data suggest that the prevalence of IC in men may be higher than once thought. As part of the RAND study, the prevalence of IC and chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) was evaluated in men by Suskind et al.7 These investigators recently reported that based on their national sample, the prevalence of IC in men was between 1.9 and 4.2% (for the high specificity and high sensitivity definitions, respectively), and the prevalence of CP/CPPS was 1.8%. These values translate into 2.1 million men with IC in the US. Seventeen percent of the men in the study met both the high specificity definition of IC and the case definition of CP/CPPS. ❨5❩ Conquering IC: Identification and Management Strategies The economic burden associated with IC is significant. In a case-control study of a Kaiser Permanente managed care population, women with an ICD-9 diagnosis of interstitial cystitis were reported to have annual medical costs 2.4 fold greater than matched controls ($7,100 vs. $2,994, respectively).8 This large difference in annual costs was largely attributed to outpatient and pharmacy expenses. Direct and indirect costs associated with IC and chronic pelvic pain (CPP) combined are estimated to be over $2 billion per year.9 Indirect costs associated with IC include time away from work, inability to work full-time, decreased productivity, and toll on family life and personal relationships. A study by Clemens et al reported that 1 in 5 women with IC reported disease-related work absenteeism over a 3-month time frame.10 It is not uncommon for patients to see 5–7 different clinicians (and receive various diagnoses and treatments) prior to receiving a diagnosis of IC. Patients are often misdiagnosed with recurrent urinary tract infection (UTI) or vaginitis, even when cultures have been negative. Untreated, IC can impact all aspects of a patient’s life including social, psychological, occupational, domestic, physical and sexual effects. A case-control study by Nickel et al indicated that women with IC reported greater sleep dysfunction, depression, anxiety, stress, catastrophizing, sexual dysfunction, and social support dysfunction compared with asymptomatic controls.11 Symptom severity was found to independently predict worse quality of life on domains of bodily pain, general health, and mental health in a study of female patients with IC by El Khoudary et al.12 However, it is important to note that with early identification, appropriate treatment, and support, the majority of patients with IC have satisfactory outcomes. The etiology and pathophysiology of IC are not fully understood. While there is no consensus on Figure 1: Interstitial Cystitis Pathophysiology (Adapted from Sant et al16) Urothelial Dysfunction Mast Cell Activation Inflammation C-Fiber Upregulation Spinal Cord and Central Nervous System “Wind-up” Visceral Organ Hyperalgesia/Allodynia Urinary Gynecologic Pelvic Musculoskeletal System ❨6❩ Gastrointestinal Conquering IC: Identification and Management Strategies the event(s) or trigger(s) that initiate the development of IC, there are a number of elements that are thought to contribute to the constellation of symptoms associated with IC. Data from human, animal, and in vitro studies suggest that urothelial dysfunction, mast cell activation, neurogenic inflammation and central sensitization contribute in an interrelated manner to the pain and urinary symptoms associated with IC (Figure 1).13,14,15,16,17 Urothelial cell membranes, cell adhesion molecules, tight junctions, and glycosaminoglycans (GAG) serve as a protective barrier in normal bladder. Studies of bladder surface function demonstrate that individuals with IC have marked urothelial dysfunction compared to healthy bladders. Disruption of the protective urothelial barrier can result in permeability changes in which urinary solutes/noxious stimuli can cross the urothelium. When such stimuli (including potassium ions) contact underlying tissues, they trigger the depolarization of sensory nerve fibers (responsible for urgency) and C-fibers, and leads to neurogenic inflammation. Activated submucosal C-fiber afferents release Substance P, which is involved in nociception and is an inflammatory mediator that can activate mast cells. In turn, activated mast cells release vasoactive, inflammatory, and nociceptive molecules including Substance P and nerve growth factor, which can drive proliferation of more nerve fibers, in a self-reinforcing cycle. Chronic inflammation and activation of C-fibers can lead to neural upregulation and even spinal cord changes that may contribute to chronic pelvic pain. It is important to point out that it is not clear if bladder injury is a primary or secondary event in the development of IC. Some authors have suggested that neurogenic inflammation from myofascial dysfunction can secondarily affect the bladder and lead to this syndrome.18 The inflammatory response in the submucosal and detrusor layers of the bladder of patients with IC is characterized by proliferation and activation of mast cells.16 Activated mast cells release histamine, kinins, proteases, leukotrienes, cytokines (interleukin-6, tumor necrosis factor-α), prostaglandins, and nitric oxide. These factors can induce increased permeability, recruitment of other immune cells, and local tissue damage, all contributing to further urothelial dysfunction. Unchecked, this ongoing inflammatory process can result in fibrotic changes and poor compliance of the bladder. Some theories have suggested that IC is an autoimmune disorder based on the greater prevalence of CD8+, CD4+ lymphocytes, B-lymphocytes, plasma cells, and immunoglobulins in the bladders of patients with IC compared with healthy bladders. Genetic susceptibility for IC has been suggested by studies showing increased prevalence of IC in first degree relatives compared with the general population, and concordance among monozygotic versus dizygotic twins.19 Persistent inflammation and urothelial re-injury are thought to contribute to the pain and lower urinary tract symptoms associated with IC. The cycle of inflammation-mast cell activationsensory nerve stimulation in the bladder results in dorsal horn upregulation/central sensitization and a visceral neuropathic pain syndrome affecting the bladder and adjacent pelvic organs. This scenario may help to explain the varied, non-bladder pain syndromes often associated with IC such as vulvodynia, dyspareunia, irritable bowel syndrome, and pelvic floor dysfunction. Afferent sensitization of one pelvic organ may ❨7❩ Conquering IC: Identification and Management Strategies Figure 2: Comorbidities of Interstitial Cystitis (adapted from Nickel et al20) P < 0.001 Irritable bowel syndrome P < 0.001 Fibromyalgia P = 0.008 Chronic fatigue syndrome P < 0.001 Vulvodynia P < 0.001 Migraine headache P = 0.001 Tension headache P = 0.048 Temporomandibular joint disorder P < 0.001 Low back pain 0 10 20 30 40 50 Percent of Patients IC (n = 207) negatively impact adjacent structures (organ “cross-talk”), without direct injury or insult to the neighboring organ. Indeed, comorbidities associated with IC are common, as illustrated in a case-control study by Nickel et al (Figure 2). All of Controls (n = 117) these issues speak to possible muscle hypertonicity playing a role locally in the pelvis as well as remotely as with temporomandibular joint disorder and migraines–suggesting a potentially common mechanism in susceptible patients. ❨8❩ Conquering IC: Identification and Management Strategies Identification of Interstitial Cystitis As mentioned previously, IC is under-reported and under-diagnosed. This may be due in large part to the lack of a definitive diagnostic test for IC, and also because of varied presentations. Men and women with IC may experience a range of symptoms (Table 1). Recognition of IC early in the disease course can translate into earlier initiation of treatment prior to the development of more severe symptoms According to some reports, patients may go several years between onset of symptoms and Table 1: Symptoms Associated with IC • Pain, pressure, discomfort or unpleasant sensation that typically worsens as the bladder fills and/or in the morning • Feeling of bladder fullness even when the bladder is partially filled • Spasms in or around the bladder • Suprapubic pain or discomfort, pelvic pain (lower abdominal pain), sometimes extending to the lower part of the back, the groin, and thighs • In women, pain in the vagina and vulva • In men, pain in the penis, testicles, scrotum, and perineum • Pain in the urethra and rectum • Pain with sexual intercourse (dyspareunia; pain with ejaculation) • Pain may worsen with specific food, drink, activity, or position • Urinary frequency; nocturia • Urinary urgency Adapted from Meijlink21 diagnosis of IC.12 Recognition of IC early in the disease course can translate into earlier treatment and more rapid improvement prior to the development of more severe symptoms. Early intervention may also prevent central sensitization and subsequent allodynia that can occur with sustained sensory afferent stimulation/activation in the bladder. The diagnosis of IC is based primarily on symptoms (pain, discomfort, or pressure accompanied by urinary urgency/frequency for at least 6 weeks in duration) in the absence of identifiable infection, disease, or other disorder causing the symptoms. IC may also be diagnosed by the finding of Hunner’s lesions on cystoscopy. The AUA guidelines advise that a basic assessment for IC should include history, physical exam, and laboratory tests in order to rule in symptoms characteristic of IC and to rule out other confusable disorders.1 A careful history is of paramount importance in the diagnosis of IC. A survey-based study of over 700 patients with IC in the United Kingdom showed that most patients reported urinary frequency, urinary urgency, and nocturia (92%, 84%, and 87%, respectively).22 Clinicians need to ask the right questions and be very attentive to patient responses. ❨9❩ Conquering IC: Identification and Management Strategies Examples of questions that can aid in the diagnosis of IC include the following: • How do patients describe their voiding patterns? Is there frequency during the day and night? • When is there urgency? Is there a persistent urgency to void? • When do patients have pain? • Where is the pain? • How do they describe pain (is it pressure, burning, sharp pain, or general discomfort)? • Are bladder symptoms worse in the morning (specifically pain/pressure)? • Is there any hematuria? • Is there any dysuria? • What is their flow like (steady stream or start and stop)? • Is there discomfort with bladder filling or emptying? • Do they feel like they empty their bladder when they void? • Is pain worse at specific points in the menstrual cycle? • Are there flares during allergy season or flares associated with any foods? • Are there certain activities that trigger bladder symptoms or pain? • Is there pain during and/or after intercourse? • Have they had frequent culture negative urinary or vaginal “infections?” • Does stress cause a worsening of symptoms? overactive bladder unresponsive to antimuscarinic treatment, persistent vulvodynia, persistent chronic prostatitis, and persistent pelvic pain post-hysterectomy. Elements of a physical exam and lab tests for IC are summarized in Table 2. Conditions that may be confused with IC due to similarity of symptoms include chronic bacterial cystitis, renal calculi, urethral diverticulum, endometriosis, overactive bladder, chronic bacterial prostatitis, vaginal infection, postradiation cystitis, and bladder cancer. Clinical scenarios when present that should alert clinicians to consider IC include UTI symptoms with negative cultures, unresolved endometriosis, ❨10❩ Table 2: Physical and Laboratory Exams for Interstitial Cystitis Physical Exam • Abdominal exam – Suprapubic tenderness – Masses – Hernias • Pelvic exam (internal and external) – Palpation of bladder base in females, urethra in both sexes – Kaufman Q-tip touch test • Evaluation of pelvic floor muscles (strength and tenderness on palpation) • Musculoskeletal system – Hip alignment – Sacroiliac joint pain – Pelvic structure – Gait • Brief neurological exam • Evaluate for incomplete bladder emptying–post void residual Lab Tests • Urinalysis • Urine culture • Cytology for patients with a history of smoking, those with unevaluated microhematuria, or greater than 45 years old with urinary frequency and urgency Conquering IC: Identification and Management Strategies Voiding diaries (24 hour–3 day) are useful as part of an initial evaluation for IC. Such information can help to establish baseline information on frequency, urgency, and void volumes. Paper-based bladder diaries (http://www.voicesforpfd.org/p/cm/ld/fid=60) and an app for smartphones are available for this purpose (BladderTrakHer at the iTunes Store). Some clinicians also find it useful to have their patients keep a food diary at the same time that they are using a bladder diary, in order to identify any association between specific foods and symptoms. When there are unclear triggers to pain, a “pain diary” may help to evaluate patterns before or during a flare. Baseline pain and symptom evaluation are important as reference for the assessment of treatment effectiveness. Two self-report questionnaires used for this purpose are the O’Leary-Sant Symptom and Problem Questionnaire (this questionnaire has two parts: Interstitial Cystitis Symptom Index and Problem Index [ICSI] and [ICPI]) and the Pelvic Pain and Urgency/Frequency (PUF) Questionnaire.23,24 While not required for the diagnosis of IC, cystoscopy and urodynamic testing can aid in the diagnosis of IC when either the results of other evaluations are inconclusive, to exclude other disease states, or to guide therapy.1 Evidence of bladder cancer, vesical stones, urethral diverticula, and intravesical foreign bodies may be detected with cystoscopy. Hunner’s lesions (inflammatory lesions specific for IC) or glomerulations (pinpoint petechial hemorrhages not pathognomonic for IC) may be visualized with cystoscopy. Urodynamic testing may help to detect detrusor overactivity or bladder outlet obstruction. The potassium sensitivity test and anesthetic challenge test are used by some clinicians as a way to establish the bladder as the location of the pain/discomfort experienced by patients. Introducing a potassium solution into the bladder may cause pain and/or urgency for patients with urothelial injury or abnormal permeability; if pain/urgency is encountered, the bladder is rinsed, and a lidocaine-based cocktail is introduced as a rescue therapy. This test is controversial and not advocated in the current AUA guidelines; however some clinicians find it is useful and informative for selected patients. Bladder instillation of an anesthetic cocktail can calm pain and urgency in the bladder and may be both diagnostic and therapeutic. There are many different bladder instillation “cocktails” used. Clinical Assessment Tools Paper-based Bladder Diary: http://www.voicesforpfd.org/p/cm/ld/fid=60 BladderTrakHer App: https://itunes.apple.com/us/app/bladdertrakher/id589851942?ls=1&mt=8 Food Diary: http://www.ichelp.org/page.aspx?pid=572 O’Leary-Sant Symptom and Problem Questionnaire: http://www.ichelp.org/document.doc?id=306 Pelvic Pain and Urgency/Frequency (PUF) Questionnaire: http://www.ichelp.org/document.doc?id=16.5 ❨11❩ Conquering IC: Identification and Management Strategies Management Strategies for IC A critical starting point for the management of IC is communication with patients about realistic expectations with treatment. It is important that patients fully understand the chronic nature of the condition, and that flares are part of the cyclical nature of the syndrome. Treatment strategies are intended to provide improvement in symptoms and quality of life, but “cure” or complete elimination of IC symptoms may not occur. It may take several months of therapy before patients start to feel better, and the more severe the symptoms, usually the longer time to improvement. Individualized, tailored multimodal Table 3: Clinical Management Principles for Interstitial Cystitis1 (adapted from 2011 AUA guidelines) • Treatments are ordered from most to least conservative; cystectomy is a treatment option only after all other treatment options have been exhausted and found to be ineffective • Initial treatment level depends on treatment severity, clinician judgment, and patient preferences • Multiple, simultaneous treatments may be considered if in the best interests of the patient • Ineffective treatments should be stopped • Pain management should be considered throughout the course of therapy with the goal of maximizing function and minimizing pain and side effects • IC diagnosis should be reconsidered if no improvement after multiple treatment approaches therapy, which may involve combining treatments to optimize symptom management, is common, as there is no single treatment approach to which most patients will respond. Clinical management principles for IC are summarized in Table 3. A critical starting point for the management of IC is communication with patients about realistic expectations with treatment First- through sixth-line treatments from the 2011 AUA treatment algorithm are included in Figure 3. Selection of first-line treatment options may be based on each patient’s desires/preferences/ willingness to try, and the risk/benefit of each therapy. In addition to education about IC and treatment expectations, all patients should learn about self-care practices and behavioral modifications that may help to improve symptoms. Coping strategies and general relaxation techniques such as yoga and meditation may help to minimize stress-related triggers or flares. Dietary adjustments or an elimination diet are useful to identify foods that irritate the bladder and exacerbate symptoms.25 The Interstitial Cystitis Association has resources for patients about the elimination diet.26,27 An IC diet can be individualized depending on patient-identified triggers. Over-the-counter alkalizing agents such as calcium glycerophosphate (Prelief ) provide benefits for some patients to help offset acidic food-related ❨12❩ Conquering IC: Identification and Management Strategies Figure 3: Treatment for Interstitial Cystitis1 (adapted from 2011 AUA Guidelines) FIRST-LINE TREATMENTS General relaxation/Stress Management • Pain Management Patient Education • Self-care/Behavioral Modification SECOND-LINE TREATMENTS Appropriate manual physical therapy techniques • Pain Management Oral: amitryptyline, cimetidine,hydroxyzine, pentosan polysulfate sodium* Intravesical: DMSO*, heparin, lidocaine THIRD-LINE TREATMENTS Cystoscopy under anesthesia with hydrodistension • Pain Management Treatment of Hunner’s lesions if found FOURTH-LINE TREATMENTS Neuromodulation • Pain Management FIFTH-LINE TREATMENTS Cyclosporine A • Intradetrusor onabotulinumtoxinA • Pain Management SIXTH-LINE TREATMENTS Diversion with or without cystectomy • Pain Management • Substitution cystoplasty *FDA approved for IC irritation. Constipation should be avoided in patients with IC, as straining increases pressure on the pelvic floor, and can exacerbate symptoms. There may also be other activities or stresses that patients identify as causing a flare of symptoms. Patients may find comfort from local application of heat or ice to tender areas. Bladder retraining to increase bladder capacity and manage urge are also valuable for patients with IC. Multimodal treatment strategies are fundamental in the management of IC, and may include physical therapy (pelvic floor relaxation, with myofascial release techniques in particular), stress management, and pharmacological approaches.1 Referral to a pain clinic may be advised when pain cannot be managed without narcotics. In a retrospective chart review of patients with a diagnosis of IC, Bassaly et al reported that 78% ❨13❩ Conquering IC: Identification and Management Strategies had myofascial pain with at least one myofascial trigger point, and 68% of their patient sample had multiple trigger points.28 Myofascial trigger points can refer pain to the perineum, vagina, urethra, and rectum.29 For example, pain/symptoms in the suprapubic region, urethra, bladder, or perineum can be referred from the levator ani anterior muscle; patients may complain of urinary urgency and frequency, painful urination, or dyspareunia. Manual myofascial release techniques and trigger point injections may help to resolve pain and relax muscles and connective tissue restrictions.30 Individualized, tailored multimodal therapy, which may involve combining treatments to optimize symptom management, is common, as there is no single treatment approach to which most patients will respond Pharmacological treatment of IC includes both oral and intravesical agents. Of the various therapeutic agents, only oral pentosan polysulfate sodium (PPS, Elmiron®) and intravesical dimethyl sulfoxide (DMSO, RIMSO-50®) are FDA approved for the treatment of IC, all others are used off-label.31,32 Table 4 includes a summary of commonly used agents for the management of IC. PPS is thought to help restore urothelial barrier function in patients with IC. Moldwin et al reviewed PPS in placebo-controlled, double-blind studies in patients with IC.33 Treatment with PPS (typically 300 mg/day) was associated with pain reduction in 27–44% of patients compared with placebo rates of 15–34% (37 vs. 21% overall for the studies reviewed). Gastrointestinal disturbance is a common side effect with PPS. Patients treated with PPS should be educated about the time required to reach full therapeutic effect, which can take 3 to 6 months or longer. The tricyclic antidepressant amitriptyline is commonly included in the treatment algorithms for IC. In a randomized, double-blind, placebo-controlled study, Foster et al found no statistically significant difference in overall symptom improvement response rates between amitriptyline (55%) and placebo (45%) in a 12-week study, however subgroup analysis showed that patients who were treated with at least 50 mg/day of amitriptyline had significantly better response rates relative to placebo (66 vs. 47%, P = 0.01).34 A 4-month placebo-controlled study showed that treatment with amitriptyline (self-titration 25 mg to 100 mg/day) was associated with significant improvement in symptom scores, pain, and urgency compared with placebo.35 Drowsiness, dry mouth, and constipation are side effects associated with amitriptyline; some patients experience a “hangover” after use. Patients can counter these side effects by altering the timing when they take their medications, ie, taking them between 5–7 PM instead of right before bed, as well as taking a daily stool softener or flax seed oil capsules. Antihistamine agents are used by many clinicians for IC, particularly in patients with allergy-related flares. In a 24-week study, Sant et al showed that the combination of PPS (100 mg TID) and hydroxyzine (50 mg daily) was associated with a response rate of 40% compared with controls (13%).36 In this study, treatment with either hydroxyzine or PPS alone was not as effective as the combination (23 and 28% response rates, respectively). Hydroxyzine has sedative effects, so patients are often advised to take this treatment in the evening. Direct application of medication to the bladder with instillation therapy potentially minimizes ❨14❩ Conquering IC: Identification and Management Strategies Table 4: Pharmacological Treatment of IC Treatment Properties Comments Oral Agents Pentosan polysulfate sodium 100 mg TID Synthetic sulfated polysaccharide; May require 3–6 months for 3–6% excreted in urine; theoretically symptom improvement replenishes the urothelial GAG layer Side effects: minor GI disturbances Amitriptyline 10 mg daily; gradually titrated up to 100 mg Tricyclic antidepressant with analgesic properties Side effects: drowsiness, nausea, constipation; dry mouth, arrhythmia, “vivid dreams”/nightmares, some patients experience a “hangover” Gabapentin 300-1200 mg TID Anticonvulsant used for neuropathic pain Side effects: drowsiness, dizziness, slight weight gain Pregabalin 150 mg BID Anticonvulsant used for neuropathic pain Side effects: drowsiness, dizziness, slight weight gain, angioedema Hydroxyzine 10 mg daily titrated up to 75 mg Antihistamine Side effects: sedation, weakness, dizziness, dry mouth, constipation Montelukast 10 mg daily Antihistamine, leukotriene modifier Side effects: headache, pharyngitis, cough Cyclosporine A 2-3 mg/kg/day divided in 2 doses Immunomodulator Side effects: nephrotoxicity, hypertension, immunosuppression Dimethyl sulfoxide (DMSO) 50% solution Anti-inflammatory, analgesic, smooth muscle relaxation Side effects: garlic-like taste/odor Heparin 10,000-40,000 units in 10 mL sterile H2O Anti-inflammatory and surface protective Side effects: dysuria, urethral/bladder irritation Lidocaine 1-2% solution Analgesic Side effects: dysuria, urethral/bladder irritation, urinary retention Intravesical Agents* “Cocktails” Anti-inflammatory, analgesic, Heparin + lidocaine + bicarbonate; surface protective Heparin + bicarbonate + steroid + lidocaine Side effects: dysuria, urethral/bladder irritation, urinary retention Bupivacaine (Marcaine) 0.5% solution Side effects: dizziness, lightheadedness, cardiotoxicity, dysuria/bladder irritation, urinary retention Analgesic *These agents are used individually or as “cocktails” ❨15❩ Conquering IC: Identification and Management Strategies side effects due to limited systemic drug absorption. However, these treatments do require catheterization, which can cause urethral irritation. Drugs administered by intravesical installation are used individually or as “cocktails.” A prospective, double-blind, cross-over, placebo-controlled trial recently reported by Parsons et al evaluated intravesical instillation of alkalinized lidocaine and heparin in patients with IC. Active treatment (heparin + lidocaine + sodium bicarbonate) was associated with significant improvement over 12 hours in pain scores and symptom improvement (including urgency) compared with controls (42 vs 21%, P = 0.04; and 50 vs 13%, P = 0.01 respectively).37 Cystoscopy under anesthesia with hydrodistension is a third-line therapy according to the 2011 AUA guidelines for patients who have persistent symptoms and have failed other treatment approaches. This procedure serves 3 purposes: 1) evaluate for bladder tumors or Hunner’s lesions; 2) hydrodistension serves as a treatment with significant relief of symptoms for some patients; and 3) distention allows disease “staging” by determining the anatomic bladder capacity.1 When Hunner’s lesions are noted on cystoscopy, the AUA guidelines recommend fulguration and/or injection with triamcinolone.38,39 Sacral nerve stimulation and intradetrusor injection of onabotulinumtoxinA have been used to address urinary frequency and urgency; however these approaches are not FDA approved for patients with IC. Bladder augmentation and cystectomy are considered appropriate only for patients with severe disease, refractory to all other treatment options. These patients must be aware of and accept the associated life-long changes. ❨16❩ Conquering IC: Identification and Management Strategies Support for Patients As stated previously, patient education about IC, the disease course, and treatment expectations are imperative to help patients manage this chronic condition. A team approach in the office, in which all staff understand the needs of patients with IC will help to remove any perceived barriers, and can reinforce the availability of the practice to support patients with challenges and management of flares. Patients should be encouraged to include members of their support network in appointments, where appropriate. Patients will benefit from understanding strategies for the management of flares, such as application of ice or heat, warm baths, use of vaginal suppositories (for example, valium + baclofen + lidocaine prepared by a compounding pharmacy), urinary analgesics, intravesical instillations (performed in the office or at home), oral analgesics, and trigger point injections into abdominal or pelvic floor muscles. Table 6: Non-Profit Patient Resource Providers • Interstitial Cystitis Association www.ichelp.org – ICA Update – Support Groups • American Urological Association www.auanet.org • National Institute of Diabetes and Digestive and Kidney Diseases www.kidney.niddk.nih.gov • International Urogynecological Association www.iuga.org • National Vulvodynia Association www.nva.org • Urology Care Foundation www.UrologyHealth.org • American Association of Sexuality Educators Counselors and Therapists (AASECT) www.aasect.org Table 5: A Multidisciplinary Approach to Interstitial Cystitis • Nursing • Physical therapy (pelvic floor specialists trained in myofascial release) • Nutrition consultation • Pain clinic • Gastroenterology • Gynecology • Urogynecology • Urology • Rheumatology A multidisciplinary team is involved in the care of patients with IC, and referral to specialists is especially important for patients with persistent symptoms (Table 5). Numerous resources are available to educate and support patients with IC, such as those included in Table 6. • Sex therapy • Psychiatry/psychology/counseling • Musculoskeletal specialty ❨17❩ Conquering IC: Identification and Management Strategies Conclusion Historically, IC has been an under-recognized condition with a negative impact on quality of life for affected patients. However, early recognition and prompt initiation of treatment can improve pain, symptoms, and overall outcomes. There are gaps in our understanding of the pathophysiology of IC, and as more is learned about this syndrome, hopefully additional therapeutic agents will be incorporated into treatment algorithms. There are many treatment approaches for IC, and it is essential to consider new modalities, multimodal therapies, and a multidisciplinary approach when unsatisfactory results are obtained with current treatment. There is reason for optimism for patients with IC and chronic pelvic pain syndromes. Research efforts are ongoing to better understand the causes of these conditions, improve diagnosis, and develop new treatments. The Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network is devoted to better understanding the phenotypes, etiology, and natural history of urologic chronic pelvic pain syndromes.40 Studies exploring the potential relationships of IC/CP/CPPS with pain disorders such as IBS, fibromyalgia, and chronic fatigue syndrome are included in the MAPP initiative. A system for clinically phenotyping patients with urologic pelvic pain was developed by There is reason for optimism for patients with IC and chronic pelvic pain syndromes Shoskes et al, which can be used to guide and optimize therapy.41 The “UPOINT” system includes Urinary complaints, Psychosocial, Organ specific, Infection, Neurogenic/systemic and Tenderness of muscles domains. The diagnosis of IC would be greatly facilitated by a definitive diagnostic test. Research into clinically relevant biomarkers for IC is a step toward this goal. Parsons et al have recently reported a significant difference in the glycosylation of Tamm-Horsfall protein in the urine of patients with IC compared with controls.42 Investigation into the role of antiproliferative factor (APF) and associated signaling pathways in IC is ongoing.43 A novel approach for treatment of IC involves liposomal delivery of drugs to the bladder. Chuang et al reported promising results of intravesical liposomal PPS for patients with IC, which provides the groundwork for larger, placebo-controlled trials.44 With continued clinical interest, research, and multidisciplinary efforts, advances can be anticipated in the identification and management of patients with IC. Research Grant Resources IC Research Funding Opportunities: http://www.ichelp.org/page.aspx?pid=559 ICA Pilot Research Program: http://www.ichelp.org/page.aspx?pid=457 AUGS Research Grant Programs: http://www.augs.org/p/cm/ld/fid=62 ❨18❩ Conquering IC: Identification and Management Strategies References 1. Hanno PM, Burks DA, Clemens JQ, Interstitial Cystitis Guidelines Panel of the American Urological Association Education and Research, Inc. American Urological Association (AUA) Guideline. Diagnosis and treatment of interstitial cystitis/bladder pain syndrome. J Urol. 2011;185:2162-2170. 2. Hanno P, Dmochowski R. Status of international consensus on interstitial cystitis/bladder pain syndrome/painful bladder syndrome: 2008 snapshot. Neurourol Urodyn. 2009:28:274-286. 3. Gillenwater JY, Wein AJ. 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Increased prevalence of interstitial cystitis: previously unrecognized urologic and gynecologic cases identified using a new symptom questionnaire and intravesical potassium sensitivity. Urology. 2002;60:573-578. 25. Shorter B, Lesser M, Moldwin RM, Kushner L. Effect of comestibles on symptoms of interstitial cystitis. J Urol. 2007;178:145-152. 26. ICA. IC elimination-challenge diet. http://www.ichelp.org/Page.aspx?pid=391. Accessed Feb 2013. 31. Elmiron. http://www.accessdata.fda.gov/scripts/cder/drugsat fda/index.cfm?fuseaction=Search.DrugDetails. Accessed Feb 2013. 32. RIMSO-50. http://www.accessdata.fda.gov/scripts/cder/drugsat fda/index.cfm?fuseaction=Search.DrugDetails. Accessed Feb 2013. 33. Moldwin RM, Evans RJ, Stanford EJ, Rosenberg MT. Rational approaches to the treatment of patients with interstitial cystitis. Urology. 2007;69(S4A):73-81. 34. Foster HE Jr, Hanno PM, Nickel JC, et al; Interstitial Cystitis Collaborative Research Network. Effect of amitriptyline on symptoms in treatment naïve patients with interstitial cystitis/painful bladder syndrome. J Urol. 2010;183:1853-1858. 35. van Ophoven A, Pokupic S, Heinecke A, Hertle L. A prospective, randomized, placebo controlled double-blind study of amitriptyline for the treatment of interstitial cystitis. J Urol. 2004;172:533-536. ❨20❩ Conquering IC: Identification and Management Strategies 36. Sant GR, Propert KJ, Hanno PM, et al; Interstitial Cystitis Clinical Trials Group. A pilot trial of oral pentosan polysulfate and oral hydroxyzine in patients with interstitial cystitis. J Urol. 2003;170:810-815. 41. Shoskes DA, Nickel JC, Dolinga R, Prots D. Clinical phenotyping of patients with chronic prostatitis/chronic pelvic pain syndrome and correlation with symptom severity. Urology. 2009;73:538-542. 37. Parsons CL, Zupkas P, Proctor J, et al. Alkalinized lidocaine and heparin provide immediate relief of pain and urgency in patients with interstitial cystitis. J Sex Med. 2012;9:207-212. 42. Parsons CL, Proctor J, Teichman JS, et al. A multi-site study confirms abnormal glycosylation in the Tamm-Horsfall protein of patients with interstitial cystitis. J Urol. 2011;186:112-116. 38. Hillelsohn JH, Rais-Bahrami S, Friedlander JI, et al. Fulguration for Hunner uclers: long-term clinical outcomes. J Urol. 2012;188:2238-2241. 43. Kim J, Freeman M. Antiproliferative factor signaling and interstitial cystitis/painful bladder syndrome. Int Neurourol J. 2011;15:184-191. 39. Cox M, Klutke JJ, Klutke CG. Assessment of patient outcomes following submucosal injection of triamcinolone for treatment of Hunner’s ulcer subtype interstitial cystitis. Can J Urol. 2009;16:4536-4540. 44. Chuang YC, Lee WC, Lee WC, Chiang PH. Intravesical liposome versus oral pentosan polysulfate for interstitial cystitis/painful bladder syndrome. J Urol. 2009;182:1393-1400. 40. Multidisciplinary approach to the study of chronic pelvic pain. http://www.mappnetwork.org/. Accessed Feb 2013. ❨21❩ Interstitial Cystitis Association www.ichelpcme.org Developed in Cooperation with A Continuing Education Company & NPA
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