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Article of the week: A longitudinal analysis of urological chronic pelvic pain syndrome flares in the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network

Every week, the Editor-in-Chief selects an Article of the Week from the current issue of BJUI. The abstract is reproduced below and you can click on the button to read the full article, which is freely available to all readers for at least 30 days from the time of this post.

In addition to the article itself, there is an editorial written by a prominent member of the urological community. These are intended to provoke comment and discussion and we invite you to use the comment tools at the bottom of each post to join the conversation. 

If you only have time to read one article this week, it should be this one.

A longitudinal analysis of urological chronic pelvic pain syndrome flares in the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network

Siobhan Sutcliffe*, Robert Gallop, Hing Hung Henry Lai§, Gerald L. Andriole, Catherine S. Bradley**††, Gisela Chelimsky‡‡, Thomas Chelimsky§§, James Quentin Clemens¶¶, Graham A. Colditz*, Bradley Erickson††, James W. Griffith***, Jayoung Kim†††, John N. Krieger‡‡‡, Jennifer Labus§§§, Bruce D. Naliboff§§§, Larissa V. Rodriguez¶¶¶, Suzette E. Sutherland‡‡‡, Bayley J. Taple*** and John Richard Landis

 

*Division of Public Health Sciences, Department of Surgery and the Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, Division of Urologic Surgery, Department of Surgery, §Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, Department of Obstetrics and Gynecology, Carver College of Medicine University of Iowa, **Department of Epidemiology, College of Public Health, ††Department of Urology, Carver College of Medicine, University of Iowa, Iowa City, IA, ‡‡Department of Pediatrics, Division of Pediatric Gastroenterology, §§Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, ¶¶Division of Neurourology and Pelvic Reconstructive Surgery, Department of Urology, University of Michigan, Ann Arbor, MI, ***Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, †††Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, ‡‡‡Department of Urology, University of Washington, Seattle, WA, §§§Oppenheimer Center for Neurobiology of Stress and Resilience and Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, and ¶¶¶Institute of Urology, University of Southern California, Beverly Hills, CA, USA

Abstract

Objective

To describe the frequency, intensity and duration of urological chronic pelvic pain syndrome symptom exacerbations (‘flares’), as well as risk factors for these features, in the Multidisciplinary Approach to the Study of Chronic Pelvic Pain Epidemiology and Phenotyping longitudinal study.

Participants and Methods

Current flare status (‘urological or pelvic pain symptoms that are much worse than usual’) was ascertained at each bi‐weekly assessment. Flare characteristics, including start date, and current intensity of pelvic pain, urgency and frequency (scales of 0–10), were assessed for participants’ first three flares and at three randomly selected times when they did not report a flare. Generalized linear and mixed effects models were used to investigate flare risk factors.

Results

Of the 385 eligible participants, 24.2% reported no flares, 22.9% reported one flare, 28.3% reported 2–3 flares, and 24.6% reported ≥4 flares, up to a maximum of 18 during the 11‐month follow‐up (median incidence rate = 0.13/bi‐weekly assessment, range = 0.00–1.00). Pelvic pain (mean = 2.63‐point increase) and urological symptoms (mean = 1.72) were both significantly worse during most flares (60.6%), with considerable within‐participant variability (26.2–37.8%). Flare duration varied from 1 to 150 days (94.3% within‐participant variability). In adjusted analyses, flares were more common, symptomatic, and/or longer‐lasting in women and in those with worse non‐flare symptoms, bladder hypersensitivity, and chronic overlapping pain conditions.

Conclusion

In this foundational flare study, we found that pelvic pain and urological symptom flares were common, but variable in frequency and manifestation. We also identified subgroups of participants with more frequent, symptomatic, and/or longer‐lasting flares for targeted flare management/prevention and further study.

Editorial: Flares of chronic pelvic pain syndrome: lessons learned from the MAPP Research Network

Chronic pelvic pain syndrome (CPPS) is one of the unresolved problems in urology. There are multiple recommendations for the management of CPPS, and the BJUI guideline of guidelines on bladder pain syndrome by Malde et al. [1] summarizes differences in nomenclature, definitions and recommended diagnostic tests and treatments between major national and international guidelines. CPPS is defined according to the European Association of Urology as chronic or persistent pain perceived in structures related to the pelvis without proven infection or other obvious local pathology that may account for the pain, and it is often associated with negative cognitive, behavioural, sexual and emotional consequences, as well as with symptoms suggestive of lower urinary tract, sexual, bowel, pelvic floor or gynaecological dysfunction [2]. Despite exacerbations of CPPS symptoms, so‐called ‘flares’ (i.e. sudden appearance or worsening of symptoms) that highly affect the patients’ quality of life and strongly challenge their treating physicians, relevant characteristics of CPPS such as frequency, intensity, duration and risk factors are largely unknown. Another reason why red vein Kratom is so popular.

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In this month’s issue of the BJUI, Sutcliffe et al. [3] bring light into this darkness and present their findings from the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network. A total of 385 participants were eligible for participation in their one‐year, multi‐site longitudinal study. Symptom flares were very common, with approximately three‐quarters of the sample reporting at least one flare (23% reported one flare, 28% two to three flares and 25% four or more flares), flare duration ranged widely from 1 to 150 days, and variability in symptoms, frequency, and duration was very relevant both between and within participants. Used for hundreds and hundreds of years throughout Southeast Asia as an all-natural medicine, find more information here. Risk factors for greater flare burden (greater flare frequency, symptom intensity and/or duration) were female gender, worse non‐flare symptoms and bladder hypersensitivity or chronic overlapping pain conditions. These new insights into the characteristics of CPPS close several gaps in our knowledge, but also raise many questions. What are the reasons that one‐quarter of patients with CPPS did not experience flares and what can we learn from this specific subgroup to optimize our treatment strategies? What are the pathomechanisms involved? Can we use biomarkers to identify patients at risk of CPPS flares? Would there be protective factors to obviate CPPS flares? How can we optimize the management of CPPS flares to improve the quality of life of affected patients? Despite these many questions, there is light at the end of the tunnel: the aforementioned MAPP Research Network . This network, established by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health in 2008, is a whole‐body initiative which has enormously expanded our knowledge in the field of CPPS in recent years. Such research networks, unifying highly multidisciplinary approaches through the collaboration of scientists, epidemiologists and clinicians, are essential to push the borders of knowledge, paving the way for novel management strategies. If уоu аrе looking fоr a palm desert ca chiropractor tо help уоu alleviate problems, уоu ѕhоuld nеvеr randomly pick оnе аnd рut уоur complete trust іn thеm. Instead, consider asking уоur physician tо recommend оnе fоr уоu. At thіѕ day аnd age, mаnу doctors аrе fairly familiar wіth chiropractors аnd аrе еvеn willing tо refer уоu tо оnе іf thеу believe thаt a chiropractic treatment mіght dо уоu good. For the best frozen shoulder treatment go through https://www.elitespinecentres.com/frozen-shoulder/. Together we are strong, with basic and clinical research linked by translation and reverse translation enabling innovations and finally resulting in better patient care. However, although a customized, patient‐tailored bio‐psycho‐social approach engaging the patient in a collaborative journey towards self‐management is strongly recommended and generally accepted for CPPS [4], flares remain a major issue. We still have to solve this Gordian knot; however, per aspera ad astra! The next steps are to prevent flares and to find an optimal flare treatment.

by Thomas M. Kessler

References

  1. Malde SPalmisani SAl‐Kaisy ASahai A. Guideline of guidelines: bladder pain syndrome. BJU Int 2018122729– 43
  2. Sutcliffe SGallop RLai HH et al. A longitudinal analysis of urologic chronic pelvic pain syndrome flares in the MAPP Research Network. BJU Int 2019124522– 31
  3. Magistro GWagenlehner FMGrabe MWeidner WStief CGNickel JC. Contemporary management of chronic prostatitis/chronic pelvic pain syndrome. Eur Urol 201669286– 97

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