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Differences in Urodynamic Parameters According to the Presence of a Hunner Lesion in Women With Interstitial Cystitis/Bladder Pain Syndrome.

Differences in Urodynamic Parameters According to the Presence of a Hunner Lesion in Women With Interstitial Cystitis/Bladder Pain Syndrome.
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Ahn ST, Jeong HG, Park TY, Kim JW, Park HS, Moon DG, Lee JG, Oh MM,


Ahn ST, Jeong HG, Park TY, Kim JW, Park HS, Moon DG, Lee JG, Oh MM, (click to view)

Ahn ST, Jeong HG, Park TY, Kim JW, Park HS, Moon DG, Lee JG, Oh MM,

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International neurourology journal 2018 01 3122(Suppl 1) S55-61 doi 10.5213/inj.1835044.522
Abstract
PURPOSE
Differences in the severity of subjective symptoms have been noted depending on whether a Hunner lesion is present in women with interstitial cystitis/bladder pain syndrome (IC/BPS). In this study, we aimed to identify differences in objective urodynamic parameters in women with IC/BPS according to the presence of a Hunner lesion.

METHODS
This cross-sectional study included a total of 55 patients with IC/BPS. IC/BPS and the presence of a Hunner lesion on cystoscopy were diagnosed according to American Urological Association guidelines. The patients were categorized into a Hunner IC/BPS group and a non-Hunner IC/BPS group according to the presence of a Hunner lesion on cystoscopy. At the initial visit, a medical history was taken from all patients with IC/BPS, and they underwent symptom assessment using a 3-day voiding diary and laboratory tests. A urodynamic study was then performed before any treatment was performed. Baseline characteristics and urodynamic parameters were compared between the 2 groups.

RESULTS
Of the 55 patients, 23 (41.8%) had a Hunner lesion on cystoscopy. As documented in the voiding diaries, the Hunner IC/BPS group had more frequent voids and a smaller maximal voided volume (P=0.045, P<0.001, respectively). Regarding urodynamic parameters, the mean volume at the first desire to void, normal desire to void, strong desire to void (SDV), and maximum cystometric bladder capacity (MBC) was significantly lower in the Hunner IC/BPS group (P=0.001, P=0.004, P<0.001, and P<0.001, respectively). On receiver operating characteristic curve analysis, patients with an SDV≤210 mL (area under the curve [AUC]=0.838, P<0.001) and an MBC≤234 mL (AUC=0.857, P<0.001) were likely to be in the Hunner IC/BPS group. CONCLUSIONS
The differences in patients’ subjective symptoms between the Hunner IC/BPS and non-Hunner IC/BPS groups were confirmed to correspond to differences in objective urodynamic parameters.

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