Normal bladder sensations in healthy volunteers: A focus group investigation

Abstract

By means of focus group research it is possible to describe the development of normal bladder sensation and to refine terminology used by healthy participants. The findings show that two types of bladder sensations are reported spontaneously by healthy uninitiated volunteers, pressure and a tingling sensation, of which the first develops in a continuous manner. The pattern in which the absolute need develops is described by the terms: no sensation, weak awareness, stronger awareness, weak need, stronger need and absolute need to void.

Validation of a real‐time bladder sensation meter during oral hydration in healthy adults: Repeatability and effects of fill rate and ultrasound probe pressure

“…Due to the invasiveness, patient risk, and cost of this test, non‐invasive hydration protocols have been developed to characterize real‐time bladder sensation in patients with and without OAB . Some of these studies have used a tablet‐based sensation meter that participants used to track real‐time, unprompted bladder sensation .…”

Do patients with OAB experience bladder sensations in the same way as healthy volunteers? A focus group investigation

“…Unfortunately this technique is invasive and fills the bladder retrograde. Recently interactive focus group sessions have been described to study bladder sensations non‐invasively 2. This qualitative research method can be used to explore thoughts from subjects3 and was found to be useful in studying bladder sensations in healthy volunteers and helpful to refine the terminology that was used to describe these sensations.…”

“…This qualitative research method can be used to explore thoughts from subjects3 and was found to be useful in studying bladder sensations in healthy volunteers and helpful to refine the terminology that was used to describe these sensations. In order to induce a constant forced diuresis a water loading protocol was used,4 and during bladder filling healthy subjects described the development and characteristics of bladder sensation as either a pressure or tingling sensation 2…”

Underactive bladder and detrusor underactivity represent different facets of volume hyposensitivity and not impaired contractility

“…ROC curves were calculated for WF and PVR to evaluate potential cut-off values and to test these measures of voiding performance (contraction strength and efficiency) as predictors of symptoms and observations relating to non-obstructive voiding impairment. Based on reports suggesting a continuous, quasi-linear progression of bladder volume vs. reported sensations [13,14], sensory volume thresholds were regarded as ordinal (1 = FS, 2 = FD, 3 = ND, 4 = SD) and plots of volume vs the ordinal scale were prepared for symptoms and observation categories. Linearity of sensory volume threshold and wall stress function plots were checked by Pearson r and POL Scientific UAB, DU and contractility linear regression used to compare slopes and intercepts.…”