scholarly journals Cross-organ sensitization between the colon and bladder: to pee or not to pee?

2018 ◽  
Vol 314 (3) ◽  
pp. G301-G308 ◽  
Author(s):  
Luke Grundy ◽  
Stuart M. Brierley

Chronic abdominal and pelvic pain are common debilitating clinical conditions experienced by millions of patients around the globe. The origin of such pain commonly arises from the intestine and bladder, which share common primary roles (the collection, storage, and expulsion of waste). These visceral organs are located in close proximity to one another and also share common innervation from spinal afferent pathways. Chronic abdominal pain, constipation, or diarrhea are primary symptoms for patients with irritable bowel syndrome or inflammatory bowel disease. Chronic pelvic pain and urinary urgency and frequency are primary symptoms experienced by patients with lower urinary tract disorders such as interstitial cystitis/painful bladder syndrome. It is becoming clear that these symptoms and clinical entities do not occur in isolation, with considerable overlap in symptom profiles across patient cohorts. Here we review recent clinical and experimental evidence documenting the existence of “cross-organ sensitization” between the colon and bladder. In such circumstances, colonic inflammation may result in profound changes to the sensory pathways innervating the bladder, resulting in severe bladder dysfunction.

Author(s):  
Danielle Sarno ◽  
Farah Hameed

Chronic pelvic pain is defined as persistent pain perceived in structures related to the anatomic pelvis (lower abdomen below the umbilicus) of either women or men for greater than 6 months. The etiology may be related to gynecologic, urologic, gastrointestinal, musculoskeletal, and neurologic causes. Pelvic pain and floor dysfunction often are associated with a musculoskeletal disorder related to the pelvic girdle, spine, or hip. Myofascial pelvic pain may be related to other diagnoses, such as depression, irritable bowel syndrome, endometriosis, constipation, painful bladder syndrome, and chronic urinary tract infections. A thorough history and clinical examination, including an internal pelvic floor musculoskeletal examination, can help identify the underlying etiology. A multidisciplinary approach to management is essential. Pelvic floor physical therapy plays an integral role. Other treatments, such as medications, complementary therapies, and injections, may be used in conjunction with physical therapy to facilitate a comprehensive rehabilitation program and manage symptoms.


2017 ◽  
Vol 9 (2) ◽  
pp. 77-86 ◽  
Author(s):  
Catherine Allaire ◽  
Tuba Aksoy ◽  
Mohamed Bedaiwy ◽  
Susannah Britnell ◽  
Heather L. Noga ◽  
...  

Endometriosis-associated pelvic pain is a common and often challenging problem. For certain patients, pain persists or recurs despite adequate medical or surgical therapy targeted to endometriosis. In this patient population, there is often the presence of coexisting pain conditions such as irritable bowel syndrome, painful bladder syndrome and myofascial pain as well central sensitisation. An interdisciplinary approach where both peripheral pain triggers and central sensitization are addressed is likely to lead to improved pain and quality of life. The approach to the evaluation and treatment of the patients with persistent/chronic pelvic pain and endometriosis is outlined in this article.


2013 ◽  
Vol 23 (12) ◽  
pp. 3485-3500 ◽  
Author(s):  
Gabriele Masselli ◽  
◽  
Lorenzo Derchi ◽  
Josephine McHugo ◽  
Andrea Rockall ◽  
...  

2012 ◽  
Vol 302 (10) ◽  
pp. G1085-G1098 ◽  
Author(s):  
Bin Feng ◽  
Jun Ho La ◽  
Erica S. Schwartz ◽  
G. F. Gebhart

Irritable bowel syndrome (IBS) is characterized as functional because a pathobiological cause is not readily apparent. Considerable evidence, however, documents that sensitizing proinflammatory and lipotoxic lipids, mast cells and their products, tryptases, enteroendocrine cells, and mononuclear phagocytes and their receptors are increased in tissues of IBS patients with colorectal hypersensitivity. It is also clear from recordings in animals of the colorectal afferent innervation that afferents exhibit long-term changes in models of persistent colorectal hypersensitivity. Such changes in afferent excitability and responses to mechanical stimuli are consistent with relief of discomfort and pain in IBS patients, including relief of referred abdominal hypersensitivity, upon intra-rectal instillation of local anesthetic. In the aggregate, these experimental outcomes establish the importance of afferent drive in IBS, consistent with a larger literature with respect to other chronic conditions in which pain is a principal complaint (e.g., neuropathic pain, painful bladder syndrome, fibromyalgia). Accordingly, colorectal afferents and the environment in which these receptive endings reside constitute the focus of this review. That environment includes understudied and incompletely understood contributions from immune-competent cells resident in and recruited into the colorectum. We close this review by highlighting deficiencies in existing knowledge and identifying several areas for further investigation, resolution of which we anticipate would significantly advance our understanding of neural and neuro-immune contributions to IBS pain and hypersensitivity.


1991 ◽  
Vol 12 (sup1) ◽  
pp. 65-75 ◽  
Author(s):  
E. A. Walker ◽  
W. J. Katon ◽  
J. Jemelka ◽  
H. Alfrey ◽  
M. Bowers ◽  
...  

1995 ◽  
Vol 269 (6) ◽  
pp. G821-G826 ◽  
Author(s):  
W. D. Chey ◽  
A. Beydoun ◽  
D. J. Roberts ◽  
W. L. Hasler ◽  
C. Owyang

Octreotide reduces perception of rectal distension in normal volunteers and irritable bowel patients. To localize octreotide's site of action, perceptual and evoked potential responses to rectal electrical stimulation were tested in seven normal volunteers after double-blind octreotide (100 micrograms 2) or placebo. After octreotide, the currents needed to elicit threshold perception of square-wave impulses delivered to the rectum were 29% higher than after placebo. When electrical stimulation was delivered at constant currents 50% above threshold, rectal perception scores were significantly reduced after octreotide compared with placebo. Rectal electrical stimulation led to characteristic and reproducible cerebral evoked potentials. Octreotide had no effect on latencies, but reduced peak-to-peak amplitudes by 35% compared with placebo. Rectal electrical stimulation also led to characteristic and reproducible spinal evoked potentials. Octreotide had no effect on spinal latencies, but reduced peak-to-peak amplitudes by 51%. In conclusion, octreotide reduces perception of rectal electrical stimulation, which is associated with inhibition of cerebral and spinal evoked potential amplitude, indicating effects on spinal afferent pathways.


2018 ◽  
Vol 36 (02) ◽  
pp. 123-135 ◽  
Author(s):  
Ioana Marcu ◽  
E. Campian ◽  
Frank Tu

AbstractInterstitial cystitis/bladder pain syndrome is an uncommon but potentially devastating pelvic pain disorder affecting both women and men. This condition is often confusable and comorbid with other pelvic pain disorders. Although our understanding of the underlying pathophysiology is growing, the exact longitudinal course by which peripheral and central aberrations involving the bladder mucosa, peripheral inflammation, and central dysregulation of bladder sensitivity create painful bladder symptoms remains an area in need of further study. Only a limited number of drugs have been approved for treatment by the Food and Drug Administration, and overall durable efficacy of the many treatments reviewed in recent American Urological Association guidelines remains suboptimal, making awareness, early diagnosis, and use of effective treatments early in the disease course, where neural changes may still be reversible, imperative.


1996 ◽  
Vol 17 (1) ◽  
pp. 39-46 ◽  
Author(s):  
E. A. Walker ◽  
A. N. Gelfand ◽  
M. D. Gelfand ◽  
C. Green ◽  
Wj Katon

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