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Biomedical subjects

B L Ohlsson

Publications and source records attributed to B L Ohlsson.

5 recordsLinked to original sources
PubMed1996

Comparative assessment of pelvic floor function using vaginal cones, vaginal digital palpation and vaginal pressure measurements.

A group-comparative study to assess pelvic floor muscle function using vaginal cones, vaginal digital palpation, and vaginal pressure measurements in 30 women suffering from genuine stress urinary incontinence and in an age-matched group of continent women was undertaken. Vaginal digital palpation score and vaginal pressure during active contraction were greater (p < 0.001) in continent women (1.9 +/- 0.1 and 8.6 +/- 0.7 cm H2O, respectively) as compared with incontinent women (1.0 +/- 0.1 and 4.1 +/- 0.4 cm H2O, respectively). Continent women were able to retain a vaginal cone of greater weight (6.3 +/- 0.4; n = 9, weight ranging from 10 to 90 g) than women suffering from stress incontinence (4.7 +/- 0.5; p < 0.001). There was a better correlation between all three techniques of assessing pelvic floor function in continent as compared with incontinent women, especially in the comparisons involving vaginal cones. (Vaginal pressure measurement-vaginal digital palpation, r = 0.86/0.75; vaginal pressure measurement-vaginal cones. r = 0.57/0.10; vaginal digital palpation-vaginal cones, r = 0.60/0.18.) In some women, especially those with incontinence, heavy cones were retained in spite of a weak pelvic floor due to the transverse position of the cone in the vagina which was verified radiographically.

Adult↗
PubMed1989

The neurogenic overactive bladder. Classification based on urodynamics.

The aetiology and pathogenesis of bladder overactivity are very variable and the classification is rather crude. By careful interpretation of clinical findings and urodynamic assessments, refinement of the diagnosis is possible. From a therapeutic and prognostic stand-point, it is of interest to distinguish between "idiopathic detrusor instability" and the "uninhibited overactive bladder". Based on neurological investigation and cystometric recordings, including the ice water test, characteristics of the 2 entities are described.

Adult↗
PubMed1989

Effects of external and direct pudendal nerve maximal electrical stimulation in the treatment of the uninhibited overactive bladder.

Maximal electrical stimulation (MES) administered from a laboratory device designed to deliver stimulation pulses of relatively high voltages and currents was performed in 29 patients. All had suffered from bladder overactivity for several years, either idiopathic detrusor instability or an uninhibited overactive bladder, and all had failed to respond to conservative treatment. MES was performed in female patients by means of intravaginal and intra-anal electrode carriers and in males by anal electrodes only. In some cases additional stimulation was administered by means of a single needle bipolar electrode inserted directly into the pudendal nerve. Maximal amplitude was attained after gradual increases in amplitude and the patient's adaptation to this. Stimulation was administered by the therapist but the amplitudes were determined by the patient and limited by his/her pain threshold. Alternating rectangular constant voltage pulses at a repetition rate of 10 Hz were used. Treatment consisted of 4 sessions of stimulation with intervals of 1 week between each application. All patients showed a significant increase in functional bladder capacity and 11 reported a 30% decrease in the frequency of micturition. Two patients were unaffected by stimulation with external electrodes but responded well to direct pudendal nerve stimulation. MES seems to be an effective first-line treatment for the uninhibited overactive bladder.

Adolescent↗