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PubMed1985

Quantification of urethral closure function by SUI threshold after pubococcygeal sling operation.

Thirty-one female patients were investigated 4.8 +/- 2.5 years after pubococcygeal repair for stress urinary incontinence (SUI). Eighteen patients had a successful operation with total cure or marked improvement and 13 had a failed operation. The results of the operation were further evaluated clinically by detailed patient history and urodynamically by urethrocystometry (UCM). The severity of the SUI symptoms was evaluated by recording the physical stress causing incontinence, restrictions of daily activities and social life and use of protective pads. The symptoms were graded by the SUI score ranging from 0 to 10. The bladder pressure rise necessary for urinary leakage during coughing (The SUI threshold) was measured by UCM. The mean SUI score was 2.2 +/- 1.0 and 6.9 +/- 4.8 after successful and failed operations, respectively and the SUI threshold was 85 cm H2O and 57.5 cm H2O after successful and failed operations, respectively. The SUI threshold had a significant negative correlation with the SUI score. It is suggested that the SUI threshold is a valuable addition to UCM determining objectively the results of incontinence surgery. It should be measured each time an UCM is performed.

Aged↗
PubMed2000

Effect of postpartum pelvic floor muscle training in prevention and treatment of urinary incontinence: a one-year follow up.

OBJECTIVE: To evaluate the long term effect of a postpartum pelvic floor muscle training course in prevention and treatment of urinary incontinence. DESIGN: A prospective matched controlled trial. SAMPLE AND METHODS: All women who had participated in a matched controlled study evaluating the effect of an eight-week pelvic floor muscle training program in prevention and treatment of urinary incontinence in the immediate postpartum period were contacted by telephone one year after delivery. They were invited to participate in a follow up study. The study group consisted of 81 matched pairs (n = 162), with a mean age (range) 28 years (19-40), and mean number (range) of deliveries 1.8 (1-5). Seventy-six pairs had normal vaginal deliveries and five elective caesarean sections. Registration of continence status was by structured interview and a standardised pad test. Clinical assessment of pelvic floor muscle function and strength were by vaginal palpation and vaginal squeeze pressure. MAIN OUTCOME MEASURE: Stress urinary incontinence. RESULTS: At the one year follow up, significantly more women in the former control group than in the training group reported stress urinary incontinence and/or showed urinary leakage at the pad test (P < 0.01). A significantly greater (P < 0.01) muscle strength increase in the period between 16th week and one year postpartum was demonstrated in the former training group (mean 4.4 cm H2O, 95% CI 3.2-5.6) than in the control group (mean 1.7 cm H2O, 95% CI 0.8-2.7). CONCLUSION: This one year follow up study demonstrates that a specially designed postpartum pelvic floor muscle training course was effective in the prevention and treatment of stress urinary incontinence. The benefits from pelvic floor muscle training are still present one year after delivery.

Adult↗
PubMed1997

Predictive factors of the outcome of primary surgical treatment of stress incontinence in women.

Forty-five women with stress incontinence (mean age 50 years) scheduled for surgical treatment randomized either to retropubic urethrocystopexy or to pubococcygeal repair were prospectively studied. Fifty healthy women were used as a reference group. No difference emerged concerning the outcome for these two surgical techniques in terms of success rate. Consequently, the subjects were treated as one group. The aim of the study was to test for predictive factors of the outcome of surgical treatment. Age of the patient, duration of stress incontinence, parity, personality, psychological and social factors were investigated. The outcome of surgical treatment was estimated both subjectively and objectively (pad test). The women were classified as cured or improved/failure. There was an 80% concordance between subjective and objective methods. In the stress incontinent women who were improved/failure one year after surgery, a high degree of neuroticism, low degree of extraversion, high degree of somatic anxiety, psychic anxiety, psychasthenia and suspicion was observed compared to the cured women. Furthermore, the improved/failure women had a lower level of social integration, in terms of loneliness compared to the cured women. Our findings point to the need of psychosocial support and care in addition to the medical treatment. According to a stepwise logistic regression analysis three variables have been found of importance as predictors of the outcome of the surgical treatment: duration of stress incontinence, neuroticism and age of patient.

Adult↗
PubMed1990

Management of urinary incontinence in gynecological practice in Norway.

In order to investigate how Norwegian gynecologists manage female urinary incontinence in their daily practice, a questionnaire about six typical case histories was sent to the members of the Norwegian Gynaecological Association. The questionnaire comprised questions about investigations, use of laboratory tests and treatment options. Of 268 questionnaires sent out, 190 were returned (71%). Frequency-volume charts were recommended by 42% of the doctors and pad-weighting tests by 12%. Urodynamic examination was recommended for 55% of the cases, but mainly in mixed incontinence (76 and 77%). Pelvic floor exercises were suggested more often to younger patients than to the elderly. Drugs were infrequently suggested, mainly following appropriate indications. Drugs and pads were recommended especially for the elderly. The recommendation rate for surgical repair was higher for young age and greater degree of stress incontinence. The modest therapeutic ambition on behalf of the elderly women lacks basis in clinical research. A general management program for female urinary incontinence would possibly standardize and improve the quality of incontinence care by gynecologists in Norway.

Adult↗
PubMed2005

The comparison of artificial urinary sphincter implantation and endourethral macroplastique injection for the treatment of postprostatectomy incontinence.

OBJECTIVES: To compare the effectiveness of macroplastique injection with artificial urinary sphincter implantation (AUS) for treatment of postprostatectomy incontinence (PPI). METHODS: A prospective randomized clinical trial including 45 patients with PPI was performed secondary to radical retropubic prostatectomy (RRP), transvesical prostatectomy (TVP), transurethral prostatectomy (TURP), and TURP with TVP, in 12, 16, 16, 1 patients respectively. Patients were divided into two groups as minimal (group I) and total incontinence (group II) according to the severity of incontinence. Respectively, Group I (n = 21) and group II (n = 24) patients were randomized as AUS implantation (n = 11, n = 11) and macroplastique injection (n = 10, n = 13). Follow-up period was 48 (6-84) months in patients with macroplastique injection and 60 (8-120) months in AUS implantation. The success of the treatment was evaluated by calculating the average number of pads used by the patient per day, the weight of the pads and score of quality of life survey scale for each group both in the preoperative and in the postoperative period. RESULTS: There were statistically significant differences between preoperative and postoperative average pad weight, average number of pads and quality of life scores, both in patients with minimal and total incontinence. In group I there was no statistically significant difference between the two techniques. However, in group II there was a significant difference favoring AUS implantation. CONCLUSIONS: Endourethral injection should be the treatment of choice for patients with minimal incontinence, whereas AUS implantation as the first choice for patients with total incontinence.

Aged↗
PubMed2005

Patient-reported urinary continence (third-party interview): results of post-radical retropubic prostatectomy in Singaporeans.

OBJECTIVE: To determine the patient-reported urinary continence rate after retropubic radical prostatectomy (RRP) for prostate carcinoma through a third-party interview and to grade the severity of incontinence. METHODS: Between 1997 and 1999, 34 patients were evaluated through an independent third party about the degree of continence as well as the quality of life after RRP. Patients were interviewed either in person or over the telephone. Urinary continence was defined as wearing no diapers, pads or tissue paper. RESULTS: Of the 34 patients, 44% achieved immediate continence. Urinary incontinence gradually improved with time after surgery and 82% (n = 28) were fully continent at 12 months. Using the quality-of-life index, 91% of patients characterized their urinary incontinence as not or minimally bothersome. There was no significant difference between urologist- and patient-reported continence rates after RRP. CONCLUSION: Based on our grading system, urinary continence gradually improved with time and was 82% at 1 year.

Age Distribution↗
PubMed2004

The effect of botulinum-A toxin on patients with severe urge urinary incontinence.

PURPOSE: We determined the effect of 150 units of botulinum-A toxin (Botox, Allergan, Irvine, California) on subjects with severe urge urinary incontinence (UUI). MATERIALS AND METHODS: This was an open label uncontrolled clinical trial. Subjects were recruited from the female urology and urogynecology clinics at Duke University. Inclusion criteria included evidence of UUI on 3-day bladder diary, a 24-hour pad weight of 100 gm or greater, absent or minimal stress leakage, absent detrusor dysfunction, and a history of failed anticholinergic and physical therapies. Exclusion criteria included evidence of a urinary tract infection, or other correctable or neurological etiology for UUI. The detrusor of each subject was injected with 150 units of botulinum-A toxin. Evaluations were performed at 2 weeks, 6 weeks, 3 months and 6 months after injection. Outcome measures included daily incontinence episodes, Urogenital Distress Inventory and the Incontinence Impact Questionnaire, 24-hour pad weights, daily pad usage and urinalysis at all visits. Urodynamic studies were performed at the 6-week and 3-month visits. RESULTS: Three subjects had uncomplicated urinary tract infections during followup. No other adverse effects occurred. Statistically and clinically significant decreases greater than 50% were seen in virtually all outcome measures at all visits up to 3 months. Most subjects showed signs of recurrent UUI by 6 months. All subjects reported remarkable subjective improvement in incontinence. No significant changes in maximal cystometric capacity, maximal detrusor pressure, peak flow or post-void residual volumes were seen. CONCLUSIONS: Botulinum-A toxin can significantly decrease urge urinary incontinence and improve quality of life for 3 months after injection. Additional studies are needed to determine ideal doses, dosing intervals, safety and cost-effectiveness of this therapy.

Aged↗
PubMed2001

The efficacy of laparoscopic mesh colposuspension: results of a prospective controlled study.

OBJECTIVE: To investigate the efficacy of laparoscopic mesh colposuspension as an equivalent approach to the 'gold standard' open Burch colposuspension. PATIENTS AND METHODS: A prospective controlled study of laparoscopic mesh colposuspension was conducted over 2 years; 87 patients with genuine stress incontinence (GSI) were recruited. The preoperative evaluation included a history, examination, midstream urine analysis, urinary voiding diary, a Urilos pad test, and twin-channel subtracted cystometry, including urethral profilometry and measurement of the postvoid residual volume. The study included patients who had undergone previous incontinence surgery, but those with detrusor instability or neurogenic bladder were excluded. The patients were assessed at 6 weeks, 6 months and 1 year after surgery and then yearly thereafter. The urodynamic assessment was repeated 3 months after surgery. RESULTS: Forty-nine patients underwent laparoscopic colposuspension using Prolene mesh and titanium tacks to elevate the bladder neck, while 38 patients had open Burch colposuspension. There was no difference between the groups in age, parity, body mass index, menopausal status, medical history, previous bladder neck surgery and prolapse. At 6 weeks the cure rate was similarly high in the two groups (91% laparoscopic and 94% open). After a mean follow-up of 32 months, both groups showed a decline in efficacy, which was more marked in the laparoscopic group. Cure rates were 62% for laparoscopy and 79% for open surgery, and the improvement rates were 77% and 89%, respectively (P < 0.05). CONCLUSION: Laparoscopic colposuspension using a mesh and tacker technique reduces the technical difficulty and operating time of the endoscopic procedure, but the long-term cure rates are inferior to open Burch colposuspension.

Adult↗
PubMed1995

Female urinary incontinence--consultation behaviour and patient experiences: an epidemiological survey in a Norwegian community.

The objective was to study explanatory factors for help-seeking among incontinent women, and what was the outcome of the treatment. A questionnaire was mailed to all 2366 women aged 20 or over in the rural community of Rissa, Norway. Women confirming incontinence gave information about duration, precipitating factors, frequency, amount of leakage, and impact. Questions about doctor consultation or planned consultation, treatment and results were included. Women with incontinence which had resolved without treatment were also recorded. A total of 77% answered the questionnaire. Twenty per cent of women with incontinence (n = 535) had consulted a doctor, 18% had planned to consult. Increasing age and duration, and urge/mixed type of incontinence were determinative factors for doctor consultation, while increasing severity and impact were determinative for planned consultation. Drugs, exercises, pads, and electrostimulation were all important treatment options: 21% were cured, 40% much better after treatment. Of all the women, 8% reported that they had been incontinent in the past, and only 18% of these had consulted a doctor.

Adult↗
PubMed1990

Non stress non urge female urinary incontinence--diagnosis and cure: a preliminary report.

Six patients, average age 80 years, with no previous operations, presented with urinary incontinence. The predominant symptoms were "being wet all the time" and "sudden uncontrolled urine loss". They had no symptoms of urgency or stress incontinence, and no objective evidence of "detrusor instability" or urine loss on cough stress pad testing. All but one patients were cured by the simultaneous combined Intravaginal Sling and Tuck operation, indicating that the primary cause of the symptoms was an anatomical defect in the vagina and the ligamentous supports in the region of the bladder neck, as stated in the Integral Theory of Urinary Incontinence, this supplement, elderly.

Aged↗
PubMed2002

Continued multicenter followup of cadaveric prolapse repair with sling.

PURPOSE: Since our initial description of the technique of combining a transvaginal sling with a cystocele repair using solvent dehydrated cadaveric fascia lata and bone anchors we have continued to follow our outcomes closely to determine long-term results. We present the updated, multicenter results of the cadaveric prolapse repair with sling. MATERIALS AND METHODS: A total of 172 patients 35 to 90 years old (mean age 62.1) have undergone cadaveric prolapse repair with sling with a mean followup of 12.4 months (range 6 to 28). Of these patients 132 (76.7%) completed followup. Repair was performed for grade 2 cystoceles in 73 cases, grade 3 cystoceles in 43 and grade 4 cystoceles in 16. Followup included physical examination (degree of pelvic prolapse), SEAPI scores, complications, patient reported continence, perceived improvement and satisfaction. The latter 2 parameters were obtained using a validated questionnaire. RESULTS: Of the 132 patients 15 (11.4%) had grade 1 and 2 (1.5%) had grade 2 cystocele recurrence, which required no further treatment, and 13 (9.8%) had recurrent or de novo apical vaginal prolapse. Preoperative and postoperative SEAPI scores were 5.58 and 0.9, respectively (p <0.001). A total of 90 patients (68.2%) do not use any pads for protection. Of the 132 patients 24 (18.2%) have stress incontinence of any degree, including 14 (10.6%) with pure stress urinary incontinence, 8 (6.0%) report de novo urge incontinence, 26 (19.7%) have persistent urge incontinence, 21 (15.9%) have any degree of urgency without urge incontinence, 28 (21.2%) report resolution of preoperative urgency or urge incontinence symptoms, 7 (5.3%) have mixed incontinence and 1 had prolonged urinary retention requiring urethrolysis. There has been 1 case of osteitis pubis and no osteomyelitis. Of the patients 94 (71.2%) reported greater than or equal to 70% subjective improvement overall, including 12 who were dry preoperatively, 99 (75.0%) were greater than or equal to 70% satisfied, 105 (79.9%) would repeat the surgery and 102 (77.4%) would recommend the surgery to a friend. With regard to continence 31 (23.8%) patients were less than or equal to 50% improved. A total of 108 (81.8%) patients have no stress urinary incontinence, and patient improvement, satisfaction and complication rates have been acceptable. We have been particularly impressed by the results of the cystocele repair. Surgeons must consider that patient perceived improvement and satisfaction level are essential components of the measure of success or failure of a given therapy. CONCLUSIONS: With a maximum of 28 months of followup of the cadaveric prolapse repair with sling procedure, we continue to be satisfied with the success of the cystocele repair and the competitive stress urinary incontinence cure rate.

Adult↗
PubMed1992

Early continence after radical prostatectomy.

A prospective evaluation of urinary continence in 60 consecutive patients undergoing radical prostatectomy with incorporation of the fascia posterior to the urethra into the vesicourethral anastomosis is described. With this technique complete continence without the need for pads has been achieved in 88% of the patients, with stress incontinence in 10% and total incontinence in 2%. Continence was achieved within 1 to 16 weeks, with 13% of the patients dry during week 1, 55% dry at 6 weeks and 83% dry at 3 months. The median interval to achieve continence was 5 weeks. Median age of the continent patients was significantly lower than that of incontinent patients (65 versus 69 years). Neither the number of neurovascular bundles resected nor the need to reconstruct the vesical neck affected the rate of continence. While the exact mechanism of continence after radical prostatectomy remains unknown, incorporation of the fascia posterior to the urethra into the vesicourethral anastomosis results in earlier continence and thereby lessens the morbidity of this procedure.

Anastomosis, Surgical↗
PubMed2001

Early removal of urinary catheter after radical retropubic prostatectomy is both feasible and desirable.

OBJECTIVES: To determine the feasibility and desirability of removing the urinary catheter 7 days after radical retropubic prostatectomy. METHODS: Between February 28, 2000 and October 5, 2000, 184 men underwent radical retropubic prostatectomy by a single surgeon. Of these men, 97% underwent gravity cystography under fluoroscopic control on postoperative day (POD) 7. The indwelling urinary catheter was removed on POD 7 if no evidence of extravasation was observed on cystography. Patients completed a self-administered questionnaire at the time of catheter removal to capture the degree of bother from incisional pain and the indwelling urinary catheter during the recovery period. The level of urinary continence was determined at 3 months after radical retropubic prostatectomy. RESULTS: One hundred thirty-five of the cystograms (75%) had no evidence of extravasation. The indwelling catheters were removed in 130 (97%) of 135 cases. The body weight, surgical specimen weight, presence or absence of intraoperative anastomotic extravasation, volume of pelvic drainage recorded from the Hemovac drain, and creatinine level of the pelvic drainage fluids did not predict the finding of extravasation on the POD 7 cystogram. Fifteen percent of the men whose catheters were removed on POD 7 developed acute urinary retention. At 3 months, 72% of men required no or a single protective pad, and 87% indicated they experienced no or slight bother from incontinence. These continence outcomes are comparable with a historical control group by the same surgeon who underwent catheter removal on POD 14. Forty-five percent of the men reported the catheter caused moderate to severe bother, compared with only 19% of men who indicated moderate to severe bother from incisional pain. In retrospect, 95.6% of men indicated willingness to undergo cystography on POD 7 with the intent of early catheter removal. CONCLUSIONS: The results of our study suggest that most men will have no extravasation on a cystogram performed on POD 7 and that removing the catheter at this time in these cases does not increase the risk of complications or compromise overall urinary continence. The urinary catheter is a significant bother and limits physical activity during the postoperative period. Cystography and early removal of the catheter is both feasible and desirable and should be offered to men after radical retropubic prostatectomy.

Catheters, Indwelling↗
PubMed2001

Inguinovaginal sling procedure for female stress incontinence: introduction of a minimally invasive technique.

PURPOSE: The inguinovaginal sling procedure is well accepted for surgical treatment of female stress urinary incontinence. Although the functional results are excellent, the operative trauma is higher compared to that of more recently used minimally invasive techniques. MATERIALS AND METHODS: A modified inguinovaginal sling procedure was performed in 15 patients with urodynamically diagnosed intrinsic sphincter deficiency. With the assistance of a laparoscope, two fascial strips were dissected using two small suprapubic skin incisions. The pullthrough maneuver of the fascial slings was facilitated by opening the perivesical space with an inflatable balloon. RESULTS: There were no intraoperative or postoperative complications. Mean follow-up of 7.7 months (range 4 to 11) was available in all patients. Stress incontinence was cured in 14 patients; only one woman reported using one pad per day. All patients were able to void spontaneously after a mean of 8 days (range 6 to 10). CONCLUSIONS: The laparoscopically assisted inguinovaginal sling procedure is less invasive than the original technique. Good long-term results are known from the original inguinovaginal sling procedure, and there is no need for allografts or synthetic material.

Aged↗
PubMed2007

Open versus laparoscopic radical prostatectomy: a prospective comparison of postoperative urinary incontinence rates.

PURPOSE: We compared the 12-month postoperative urinary incontinence rates of open radical retropubic and laparoscopic radical prostatectomy. MATERIALS AND METHODS: This prospective study included all men with clinically localized prostate cancer scheduled for radical prostatectomy (open retropubic or laparoscopic) at the University of Alberta between October 1999 and July 2002. Preoperative evaluation included a 24-hour pad test, fluid volume voiding diary and International Prostate Symptom Score questionnaire. Postoperative evaluation included a 24-hour pad test at 3 and 12 months, as well as a voiding diary and International Prostate Symptom Score questionnaire at 3, 6, 9 and 12 months. RESULTS: A total of 239 patients met the eligibility criteria and consented to participate (172 open radical retropubic prostatectomy, 67 laparoscopic radical prostatectomy). Of the patients 87% (148) treated with open radical retropubic prostatectomy and 88% (57) of those treated with laparoscopic radical prostatectomy completed 12-month followup (p = 0.50). According to 24-hour pad testing 13% of those treated with open radical retropubic prostatectomy and 17% of those treated with laparoscopic radical prostatectomy remained incontinent at 1 year (p = 0.26). There was no difference in 24-hour pad weight, urinary symptom score and urinary quality of life at 1 year between the open and laparoscopic groups overall, or when stratified according to 12-month continence status. The majority of subjects in both groups described mild symptoms and a general satisfaction with urinary quality of life. CONCLUSIONS: Based on objective and subjective measures, there were no differences in urinary functional outcomes 1 year after open radical retropubic prostatectomy or laparoscopic radical prostatectomy. Urinary incontinence was found to affect a similar proportion of patients who underwent open (13%) and laparoscopic (17%) radical prostatectomy 12 months postoperatively.

Humans↗
PubMed2003

Recovery of the rectoanal inhibitory reflex after restorative proctocolectomy: does it correlate with nocturnal continence?

PURPOSE: The rectoanal inhibitory reflex has an important role in fecal sampling and discrimination of rectal contents. The aim of this study was to determine the significance of rectoanal inhibitory reflex after restorative proctocolectomy with ileal pouch-anal anastomosis for mucosal ulcerative colitis. METHODS: The medical records of 345 patients who underwent ileal pouch-anal anastomosis from September 1988 to May 1999 were retrospectively reviewed. One hundred patients who underwent double-stapled ileal pouch-anal anastomosis and had anorectal physiology testing within 3 months before surgery as well as after ileostomy closure (mean, 23.1; range, 3-77 months) were analyzed. Anorectal physiology testing included detecting the presence of the rectoanal inhibitory reflex, sensory threshold volume, and rectal or pouch capacity and compliance. Parameters to determine incontinence included daytime and nocturnal bowel movement frequency, nocturnal spotting, status of continence for solid or liquid stool, gas, use of pads, and lifestyle alteration were surveyed in 62 of the 100 patients at a mean of 3.9 (range, 1-9.1) years to determine the incontinence score. RESULTS: Whereas the rectoanal inhibitory reflex was noted in 96 (96 percent) patients before surgery, it was found in only 53 (53 percent) after ileostomy closure (P < 0.0001). Incontinence status data was available in only 62 of the 100 patients (32 RAIR-positive; 30 RAIR-negative). There were no significant differences between the rectoanal inhibitory reflex-positive and the rectoanal inhibitory reflex-negative groups relative to the interval between surgery and manometry (22 vs 25 months), postoperative threshold sensation volume (32 vs 31 ml), postoperative compliance (19 vs 12 cm H(2)O/ml), postoperative capacity (85 66 ml), daytime/nighttime stool frequency (6.2/2 vs 5.5/1.5), or postoperative incontinence score (3.9 vs 1.8). However, there were significant differences relative to the incidence of nocturnal soiling (12/30 (40 percent) 23/32 (72 percent), P = 0.0012) favoring the presence of the rectoanal inhibitory reflex. CONCLUSION: Preservation of the rectoanal inhibitory reflex correlated with a decrease in the incidence of nocturnal soiling after double-stapled ileoanal reservoir construction.

Adolescent↗
PubMed1988

Educating nurses to care for the incontinent patient.

Urinary incontinence among nursing home patients is a very common problem. Until quite recently, incontinence was believed to be impossible or unnecessary to treat except through the use of absorbent pads and diapers. The cost of this type of management to the facility in terms of laundry, labor, and supplies, as well as to patients' well-being, is very high. Recent data suggest that at least some incontinent nursing home patients can benefit from treatment programs that can be taught to the nurse's aide staff and that, at the very least, will reduce laundry and supply costs. The significance of an improvement in patient morale or a decrease in the incidence of complications resulting from incontinence has yet to be assessed, but should be considered. In addition, even a partially successful treatment program may be helpful to the nurses caring for these patients as the nurses' sense of hopelessness and frustration about managing incontinent patients may be reduced. Finally, an active treatment program for continence, instituted by nurses, advances the nursing care of these patients from custodial nursing care to therapeutic nursing care.

Aged↗
PubMed1991

Impaired anal sensation and early diabetic faecal incontinence.

Faecal incontinence develops in up to 20% of diabetic patients. To try to determine the relative contributions of sensory and motor neuropathy in this troublesome complication, anorectal function was examined in 10 male diabetic patients with early faecal incontinence (mucus leakage or faecal staining without the need to wear a pad), 10 asymptomatic male diabetic patients, and 10 normal control subjects. Motor function was tested using anal manometry to determine the resting and maximum squeeze pressure, and the functional anal canal length. No significant differences were found between the groups. Sensory function was tested by measuring the mucosal sensitivity to electrical stimulation, and the response to inflation of a balloon in the rectum. In the mid-anal canal position the symptomatic patients had a significantly higher sensory threshold at 6.6 +/- 2.8 mA compared with 3.0 +/- 1.2 mA in the normal control subjects (p less than 0.002), and in the high anal zone symptomatic patients had a significantly elevated sensory threshold at 9.1 +/- 2.0 mA compared with 4.6 +/- 1.6 mA in asymptomatic patients and 3.6 +/- 1.3 mA in the normal control subjects (both p less than 0.001). There were no significant differences in the first sensation of fullness, maximum tolerated volume or percentage fall from resting pressure between the groups on inflation of the balloon. Elevation of the sensory threshold in the upper anal canal is an early abnormality in the development of diabetic faecal incontinence.

Anal Canal↗