What harm does a second delivery to the pelvic floor?

OBJECTIVE: To compare the pelvic floor function of primiparous women to women after a second delivery regarding symptoms of urinary and anal incontinence, anal sphincter ruptures and bladder-neck mobility. METHODS: A questionnaire evaluating symptoms of urinary and anal incontinence was used in nulliparous women before and 27 months after childbirth. Furthermore these symptoms were correlated with functional changes of the pelvic floor based on a careful gynecologic examination as well as perineal and endoanal ultrasound. RESULTS: 112 nulliparous women were included, 49 women returned for follow-up on average 27 months (SD 4.4 months) after the first delivery. 39 women (group A) had just one delivery, 10 women (group B ? 10/49) had had a second delivery. Apart from levator ani muscle strength, no significant difference between pelvic floor function of group A vs group B was demonstrable. Furthermore, we could show no significant difference for symptoms of urinary (11 (28.2%) vs. 5 (50.0%)) and anal incontinence (14 (35.9%) vs. 4 (40.0%)) between both groups. However, we found a lasting increase of stress urinary and anal incontinence as well as overactive bladder symptoms after one or more deliveries. The position of the bladder neck at rest was lower in both groups compared to the position before the first delivery and bladder neck mobility increased after one or more deliveries. DISCUSSION: Our study shows several statistically significant changes of the pelvic floor function even on average 27 months after delivery, but a subsequent delivery did not compromise the pelvic floor any further.

Incontinence, bladder neck mobility, and sphincter ruptures in primiparous women.

OBJECTIVE: To compare the function of the pelvic floor in primiparae before and during pregnancy with the status post partum concerning symptoms of incontinence, sphincter ruptures, bladder-neck mobility and the influence of the different modes of deliveries. METHODS: Questionnaire evaluating symptoms of urinary and anal incontinence in nulliparous women before and after delivery and correlating these symptoms with functional changes of the pelvic floor based on a careful gynaecologic examination as well as perineal and endoanal ultrasound. RESULTS: 112 women were included in our study and came for the first visit, 99 women returned for follow-up 6 months after childbirth. Stress and flatus incontinence significantly increased from before pregnancy (3 and 12%) to after childbirth (21 and 28%) in women with spontaneous delivery or vacuum extraction. No new symptoms occurred after c-section. There was no significant difference between the bladder neck position before and after delivery. The mobility of the bladder neck was significantly higher after vaginal delivery using a vacuum extraction compared to spontaneous delivery or c-section. The bladder neck in women with post partum urinary stress incontinence was significantly more mobile than in continent controls. The endoanal ultrasound detected seven occult sphincter defects without any correlation to symptoms of anal incontinence. CONCLUSION: Several statistically significant changes of the pelvic floor after delivery were demonstrated. Spontaneous vaginal delivery or vacuum extraction increases the risk for stress or anal incontinence, delivery with vacuum extraction leads to higher bladder neck mobility and stress incontinent women have more mobile bladder necks than continent women.

Occult incontinence in women with pelvic organ prolapse - Does it matter?

OBJECTIVE: Many surgeons perform an anti-incontinence procedure during prolapse surgery in women in whom occult stress urinary incontinence has been demonstrated. Others prefer a two-step approach. It was the aim of the study to find out how many women really need a second operation and if a positive cough stress test with the prolapse reduced is associated with the development of stress urinary incontinence after prolapse surgery. METHODS: 233 women were operated for primary or recurrent prolapse without complaining of SUI. Preoperatively, 53/233 women had a full urogynecological workup with the prolapse reduced. Postoperatively, if the patient suffered from stress urinary incontinence, an anti-incontinence surgery was performed. RESULTS: 19/53 (35.8%) women who had a stress test with the prolapse reduced before surgery were defined as occult stress incontinent. Only 3 women (15.8%) of these 19 women developed symptoms of incontinence after prolapse surgery and had to be operated because of that. 18/233 (7.7%) complained of SUI 6 weeks to 6 months after surgery and received a TVT-tape. CONCLUSION: The incidence of stress urinary incontinence manifesting after prolapse surgery is low in this study with 7.7%. This fact and the possible severe side effects of an incontinence operation justify a two-step approach if the patient is counseled and agrees. However, there is a small subgroup of women (3/19, 15.8%) with preoperative OSUI and SUI after surgery, who would benefit from a one-step approach. Further research is required to identify these women before surgical intervention.

Antibiotic treatment to prevent urinary tract infections after urodynamic evaluation.

The aim of the study was to determine the efficacy of cotrimoxazole administration after urodynamic testing to prevent urinary tract infections. In a single-blind prospective randomized study 94 women who attended for urodynamic evaluation were included. After multichannel urodynamic testing, including two catheterizations, the women received a single dose of cotrimoxazole or placebo. A clean-catch urine specimen was tested for infection after 1 week. Seventy women returned a urine specimen after 1 week: 2/37 (5.4%) in the treatment and 2/33 (6.1%) in the placebo group had acquired a new urinary tract infection after urodynamics. One major and one minor adverse reaction to cotrimoxazole were reported. The power of the sample size was unfortunately too small to draw conclusions as to the efficacy of prophylaxis.

Pelvic muscle activity in nulliparous volunteers.

The aim of this study was to describe normal characteristics of spontaneous and voluntary pelvic muscle function in nulliparous healthy continent women and to assess the reaction of the pelvic floor to stress and fatigue. Ten nulliparous volunteers were recruited. Pelvic muscle strength was evaluated by palpation and perineal ultrasound. Kinesiological EMG and perineal ultrasound were performed to test for possible fatigue and to assess bladder neck mobility during coughing with a pre-contraction of the pelvic floor muscles. Bladder neck mobility did not increase after attempts to fatigue the pelvic floor muscles. Bladder neck descent was significantly less when the women were instructed to contract the pelvic floor muscles before coughing. The contraction of the pelvic floor muscles stabilizes the vesical neck in nulliparous women.

Evaluation of pelvic floor muscle strength using four different techniques.

The aim of the study was to evaluate whether four different techniques were able to correctly measure pelvic floor muscle strength only. Sixteen volunteers performed a set of muscle contractions using the pelvic floor muscles (PFM) only, the abdominal muscles with and without PFM, gluteal muscles with and without PFM, adductor muscles with and without PFM and Valsalva maneuver with and without PFM. Pelvic floor muscle strength was evaluated by digital palpation, intravaginal EMG, pressure perineometry and perineal ultrasound. A 'non-pelvic muscle induced' reading was defined as a significant increase even though the pelvic floor muscles were not contracted. Results were as follows: isolated abdominal muscle contraction: non-pelvic muscle induced readings in 3/8 women with EMG and in 3/8 with pressure perineometry; isolated gluteal muscle contraction: non-pelvic muscle induced readings in 1/2 women with EMG perineometry; isolated adductor muscle contraction: non-pelvic muscle induced readings in 6/11 women with EMG perineometry and in 2/11 women with pressure perineometry; Valsalva maneuver: non-pelvic muscle induced readings in 4/9 women with EMG perineometry and 9/9 women with pressure perineometry. It was concluded that EMG and pressure perineometry do not selectively depict pelvic floor muscle activity.

Bladder neck mobility in continent nulliparous women.

OBJECTIVE: To evaluate the mobility of the vesical neck during coughing and valsalva in healthy nulliparous volunteers and to test the reliability of the technique applied. DESIGN: Clinical observational study. SETTING: Department of Obstetrics and Gynaecology, Cantonal Hospital Lucerne, Switzerland. POPULATION: Thirty-nine nulliparous volunteers. METHODS: Vesical neck motion was assessed with perineal ultrasound. Intra-abdominal pressure was controlled for with an intrarectal probe. Intra-rater reliability was evaluated. RESULTS: Vesical neck mobility was significantly lower during coughing (8 mm, SD 4 mm) than during valsalva (15 mm, SD 10 mm) (P < 0.005). Between individuals mobility varied from 4 mm to 32 mm during coughing and from 2 mm to 31 mm during valsalva. Test-retest-studies showed a maximum difference between to tests during coughing of 4 mm and during valsalva of 5 mm. CONCLUSION: The bladder neck is mobile in normal continent women and bladder neck mobility is lower during coughing than during Valsalva.

[Possibilities and limits of the conservative treatment for urinary incontinence]. / Möglichkeiten und Grenzen der konservativen Therapie der Harninkontinenz.

The conservative treatment of stress or mixed incontinence results in improvement or cure in about 60 % of patients. Pelvic floor muscle training without or with biofeedback, electrical stimulation and vaginal cones are not superior to each other.

Differences between cough and Valsalva leak-point pressure in stress incontinent women.

The aim of the study was to evaluate the relationship between Valsalva leak-point pressure (VLPP) and cough leak-point pressure (CLPP). Sixty women with stress urinary incontinence were included. One woman was excluded from evaluation because of detrusor instability. At a bladder volume of 200-300 mL (mean, 284; standard deviation, 29) CLPP and VLPP were measured in the sitting position. Intra-abdominal pressure was recorded with a rectal balloon catheter. A standardized pad test and multi-channel urodynamics were performed. VLPP was significantly lower than CLPP (58.9+/-27.6 versus 112.5+/-46.9 cm H(2)O, P<0.0001). Although CLPP was negative in two women only, VLPP was negative in 24 of 59 women (40.1%). If intrinsic sphincter deficiency was defined as a leak-point pressure of 65 cm H(2)O, 16.9% of women fulfilled this criterion using the CLPP compared to 35.6% if the VLPP is used. In conclusion, coughing and Valsalva seem to result in a different reaction of the pelvic floor.

Cross-sectional imaging anatomy of the anal sphincters.

BACKGROUND: To describe the cross-sectional anatomy of the anal sphincter mechanism relevant to magnetic resonance imaging (MRI) and ultrasound cross-sectional images. METHOD: Axial, sagittal, and coronal 5-mm sections of female pelves were reviewed from six cadaver specimens (ages 24-72 years). Fetal anatomy was studied in plastinated histologic sections from 19 and 26 weeks' gestation. Images of the anal sphincter were obtained by MRI in six and by ultrasound using an exoanal technique in 12 nulliparous volunteers. EXPERIENCE: The internal anal sphincter is clearly visible in anatomic sections central to the external sphincter and is visible in MRI and ultrasound images. The external anal sphincter can be subdivided into a subcutaneous and a deep portion. On anatomic sections and on MRI, the subcutaneous part shows as two parallel muscle strips in the axial plane; the deep portion presents with a characteristic teardrop form in the section perpendicular to the axis of the anal canal. The puborectalis muscle and the external anal sphincter form a "double bump" in the sagittal section. The longitudinal muscle can be identified by its fiber orientation in anatomic sections but is not clearly visible in imaging studies. CONCLUSION: This information should make it possible to identify accurately anal sphincter anatomy in two-dimensional sectional images of the anal sphincter.

Exoanal ultrasound of the anal sphincter: normal anatomy and sphincter defects.

OBJECTIVE: To describe the sonographic appearance of normal anal sphincter anatomy and sphincter defects evaluated with a conventional 5 MHz convex transducer placed on the perineum. DESIGN: Prospective, single-blind study. SETTING: Department of Obstetrics and Gynecology, University of Michigan Medical Center, USA. POPULATION: Twenty-five women with symptoms of faecal incontinence, 11 asymptomatic nulliparous women, and 32 asymptomatic parous women. METHODS: A convex scanner was placed on the perineum with the woman in lithotomy position. Images were taken at three levels of the sphincter canal. Pictures were evaluated by two examiners who were blinded to the case history of the women and to the results of each other for the presence or absence of sphincter defects. MAIN OUTCOME MEASURES: Description of anal sphincter appearance on endoanal ultrasound. Reproducibility of the evaluation of sphincter defects. RESULTS: The internal anal sphincter is visible as a hypoechoic circle; the external anal sphincter shows a hyperechoic pattern. Proximally the sling of the puborectalis muscle is visible. Sphincter defects were detected in 20 women. In all five women who subsequently underwent surgery, the presence and location of the defect was confirmed at the time of surgery. Examiners were in agreement 100% of the time on the presence or absence of internal defects. They disagreed in one patient on the presence of an external defect. CONCLUSION: Exoanal ultrasound provides information on normal anatomy and on defects of the anal sphincter.

Levator ani function before and after childbirth.

OBJECTIVE: To evaluate pelvic floor muscle strength before and after vaginal birth. DESIGN: Prospective repeated measures study. SETTING: Main district hospital. POPULATION: Fifty-five women: 25 primiparae and 20 multiparae following vaginal birth, and 10 women following elective caesarean delivery as a control group. METHODS: Pelvic muscle strength was evaluated by palpation, perineometry and perineal ultrasound before childbirth in the 36th to 42nd week of pregnancy, three to eight days postpartum and six to ten weeks postpartum. MAIN OUTCOME MEASURES: Pelvic floor muscle strength on palpation, intravaginal squeeze pressure and vesical neck elevation during squeeze. RESULTS: Pelvic floor muscle strength is significantly reduced three to eight days postpartum in women following vaginal birth but not in women after caesarean delivery. Six to ten weeks later palpation and vesical neck elevation on perineal ultrasound do not show any significant differences to antepartum values, while intravaginal pressure on perineometry remains significantly lower in primiparae, but not in multiparae. CONCLUSIONS: Pelvic floor muscle strength is impaired shortly after vaginal birth, but for most women returns within two months.