ABSTRACT
INTRODUCTION AND HYPOTHESIS: Female pelvic organ prolapse recurrence has been shown to be associated with levator hiatal distensibility. Reducing hiatal size surgically may reduce recurrence risk. This study aims to demonstrate a novel surgical procedure, the puborectalis sling (PR sling), designed to reduce the levator hiatal area, and to assess the medium-term safety and efficacy of this procedure. METHODS: One hundred fifteen women undergoing prolapse repair with a pre-operative hiatal area on Valsalva of ≥ 35 cm2 were recruited into this phase 1 prospective multicentre pilot study. All underwent a PR sling procedure after completion of standard repairs. Primary outcome was levator hiatal area measured on ultrasound. RESULTS: One hundred ten patients were evaluated at least 3 months post-operatively. At 2.5 years average follow-up, there was an average of 12 cm2 (range 6-16 cm2) reduction in hiatal area from a mean pre-operative hiatal area of 43.9 (35-63) cm2. Thirty per cent (28/93) were symptomatic of prolapse, 66% (61/93) had clinical prolapse recurrence whilst 49% (46/93) had sonographic recurrence. Three patients required a return to theatre; one case of infection resulted in mesh removal, one had severe obstructed defecation requiring sling loosening and another had buttock pain with faecal impaction that resolved after manual disimpaction. There were no long-term sequelae. CONCLUSIONS: The levator hiatal area can be reduced surgically, with almost 30% reduction in area seen in this pilot study. The reduction was significant and sustained up to 2 years with no major long-term complications.
Subject(s)
Anal Canal/surgery , Pelvic Floor/surgery , Pelvic Organ Prolapse/surgery , Rectum/surgery , Suburethral Slings , Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Pilot Projects , Prospective Studies , Plastic Surgery Procedures , Recurrence , Treatment OutcomeABSTRACT
BACKGROUND: The fetal occiput transverse position in the second stage of labor is associated with adverse maternal and perinatal outcomes. Prophylactic manual rotation in the second stage of labor is considered a safe and easy to perform procedure that has been used to prevent operative deliveries. OBJECTIVE: This study aimed to determine the efficacy of prophylactic manual rotation in the management of the occiput transverse position for preventing operative delivery. We hypothesized that among women who are at ≥37 weeks' gestation with a baby in the occiput transverse position early in the second stage of labor, manual rotation compared with a "sham" rotation will reduce the rate of operative delivery. STUDY DESIGN: A double-blinded, parallel, superiority, multicenter, randomized controlled clinical trial in 3 tertiary hospitals was conducted in Australia. The primary outcome was operative (cesarean, forceps, or vacuum) delivery. Secondary outcomes were cesarean delivery, serious maternal morbidity and mortality, and serious perinatal morbidity and mortality. Outcomes were analyzed by intention to treat. Proportions were compared using χ2 tests adjusted for stratification variables using the Mantel-Haenszel method or Fisher exact test. Planned subgroup analyses by operator experience and technique of manual rotation (digital or whole hand rotation) were performed. The planned sample size was 416 participants (trial registration: ACTRN12613000005752). RESULTS: Here, 160 women with a term pregnancy and a baby in the occiput transverse position in the second stage of labor, confirmed by ultrasound, were randomly assigned to receive either a prophylactic manual rotation (n=80) or a sham procedure (n=80), which was less than our original intended sample size. Operative delivery occurred in 41 of 80 women (51%) assigned to prophylactic manual rotation and 40 of 80 women (50%) assigned to a sham rotation (common risk difference, -4.2% [favors sham rotation]; 95% confidence interval, -21 to 13; P=.63). Among more experienced proceduralists, operative delivery occurred in 24 of 47 women (51%) assigned to manual rotation and 29 of 46 women (63%) assigned to a sham rotation (common risk difference, 11%; 95% confidence interval, -11 to 33; P=.33). Cesarean delivery occurred in 6 of 80 women (7.5%) in the manual rotation group and 7 of 80 women (8.7%) in the sham group. Instrumental (forceps or vacuum) delivery occurred in 35 of 80 women (44%) in the manual rotation group and 33 of 80 women (41%) in the sham group. There was no significant difference in the combined maternal and perinatal outcomes. The trial was terminated early because of limited resources. CONCLUSION: Planned prophylactic manual rotation did not result in fewer operative deliveries. More research is needed in the use of manual rotation from the occiput transverse position for preventing operative deliveries.
Subject(s)
Labor Presentation , Obstetric Labor Complications , Cesarean Section , Extraction, Obstetrical , Female , Humans , Pregnancy , Ultrasonography, PrenatalABSTRACT
BACKGROUND: Persistent occiput posterior position in labor is associated with adverse maternal and perinatal outcomes. Prophylactic manual rotation from the occiput posterior position to the occiput anterior position in the second stage of labor is considered a safe and easy to perform procedure that in observational studies has shown promise as a method for preventing operative deliveries. OBJECTIVE: This study aimed to determine the efficacy of prophylactic manual rotation in the management of occiput posterior position for preventing operative delivery. The hypothesis was that among women who are at least 37 weeks pregnant and whose baby is in the occiput posterior position early in the second stage of labor, manual rotation will reduce the rate of operative delivery compared with the "sham" rotation. STUDY DESIGN: A double-blinded, parallel, superiority, multicenter, randomized controlled clinical trial in 4 tertiary hospitals was conducted in Australia. A total of 254 nulliparous and parous women with a term pregnancy and a baby in the occiput posterior position in the second stage of labor were randomly assigned to receive either a prophylactic manual rotation (n=127) or a sham rotation (n=127). The primary outcome was operative delivery (cesarean, forceps, or vacuum delivery). Secondary outcomes were cesarean delivery, combined maternal mortality and serious morbidity, and combined perinatal mortality and serious morbidity. Analysis was by intention to treat. Proportions were compared using chi-square tests adjusted for stratification variables using the Mantel-Haenszel method or the Fisher exact test. Planned subgroup analyses by operator experience and by manual rotation technique (digital or whole-hand rotation) were performed. RESULTS: Operative delivery occurred in 79 of 127 women (62%) assigned to prophylactic manual rotation and 90 of 127 women (71%) assigned to sham rotation (common risk difference, 12; 95% confidence interval, -1.7 to 26; P=.09). Among more experienced operators or investigators, operative delivery occurred in 46 of 74 women (62%) assigned to manual rotation and 52 of 71 women (73%) assigned to a sham rotation (common risk difference, 18; 95% confidence interval, -0.5 to 36; P=.07). Cesarean delivery occurred in 22 of 127 women (17%) in both groups. Instrumental delivery (forceps or vacuum) occurred in 57 of 127 women (45%) assigned to prophylactic manual rotation and 68 of 127 women (54%) assigned to sham rotation (common risk difference, 10; 95% confidence interval, -3.1 to 22; P=.14). There was no significant difference in the combined maternal and perinatal outcomes. CONCLUSION: Prophylactic manual rotation did not result in a reduction in the rate of operative delivery. Given manual rotation was associated with a nonsignificant reduction in operative delivery, more randomized trials are needed, as our trial might have been underpowered. In addition, further research is required to further explore the potential impact of operator or investigator experience.
Subject(s)
Labor Presentation , Obstetric Labor Complications , Australia , Female , Humans , Pregnancy , Rotation , Ultrasonography, PrenatalABSTRACT
Retention of intrauterine fetal bone is a rare cause of secondary infertility that should be considered when ultrasound demonstrates strongly shadowing echodensities in the endometrial space. It seems that the bone acts as an intrauterine contraceptive device as long as it is present in the cavity. Hysteroscopy is both diagnostic and therapeutic, with a generally good prognosis for future fertility in the absence of coexisting factors.
Subject(s)
Abortion, Induced/adverse effects , Bone and Bones , Endometrium , Fetus , Infertility, Female/etiology , Adult , Dysmenorrhea/etiology , Female , Humans , Hysteroscopy , Infertility, Female/diagnostic imaging , Infertility, Female/surgery , UltrasonographyABSTRACT
BACKGROUND: Occiput posterior position is the most common malpresentation in labour, contributes to about 18% of emergency caesarean sections and is associated with a high risk of assisted delivery. Caesarean section is now a major contributing factor to maternal mortality and morbidity following childbirth in developed countries. Obstetric intervention by forceps and ventouse delivery is associated with complications to the maternal genital tract and to the neonate, respectively. There is level 2 evidence that prophylactic manual rotation reduces the caesarean section rate and assisted vaginal delivery. But there has been no adequately powered randomised controlled trial. This is a protocol for a double-blinded, multicentre, randomised controlled clinical trial to define whether this intervention decreases the operative delivery (caesarean section, forceps or vacuum delivery) rate. METHODS/DESIGN: Eligible participants will be (greater than or equal to) 37 weeks' with a singleton pregnancy and a cephalic presentation in the occiput posterior position on transabdominal ultrasound early in the second stage of labour. Based on a background risk of operative delivery of 68%, then for a reduction to 50%, an alpha value of 0.05 and a beta value of 0.2, 254 participants will need to be enrolled. This study has been approved by the Ethics Review Committee (RPAH Zone) of the Sydney Local Health District, Sydney, Australia, and protocol number X110410. Participants with written consent will be randomised to either prophylactic manual rotation or a sham procedure. The primary outcome will be operative delivery (defined as vacuum, forceps and/or caesarean section deliveries). Secondary outcomes will be caesarean section, significant maternal mortality/morbidity and significant perinatal mortality/morbidity. Analysis will be by intention-to-treat. Primary and secondary outcomes will be compared using a chi-squared test. A logistic regression for the primary outcome will be undertaken to account for potential confounders. The results of the trial will be presented at one or more medical conferences. The trial will be submitted to peer review journals for consideration for publication. There will be potential to incorporate the results into professional guidelines for obstetricians and midwives. TRIAL REGISTRATION: The Australian New Zealand Clinical Trials Registry ACTRN12612001312831 . Trial registered 12 December 2012.
Subject(s)
Labor Presentation , Obstetric Labor Complications/therapy , Version, Fetal/methods , Cesarean Section , Chi-Square Distribution , Clinical Protocols , Double-Blind Method , Extraction, Obstetrical/instrumentation , Female , Gestational Age , Humans , Intention to Treat Analysis , Labor Stage, Second , Live Birth , Logistic Models , New South Wales , Obstetric Labor Complications/diagnosis , Obstetric Labor Complications/physiopathology , Obstetrical Forceps , Pregnancy , Research Design , Sample Size , South Australia , Treatment Outcome , Ultrasonography, Prenatal , Vacuum Extraction, ObstetricalABSTRACT
BACKGROUND: Fetal occiput transverse position in the form of deep transverse arrest has long been associated with caesarean section and instrumental vaginal delivery. Occiput transverse position incidentally found in the second stage of labour is also associated with operative delivery in high risk cohorts. There is evidence from cohort studies that prophylactic manual rotation reduces the caesarean section rate. This is a protocol for a double blind, multicentre, randomised, controlled clinical trial to define whether this intervention decreases the operative delivery (caesarean section, forceps or vacuum delivery) rate. METHODS/DESIGN: Eligible participants will be ≥37 weeks pregnant, with a singleton pregnancy, and a cephalic presentation in the occiput transverse position on transabdominal ultrasound early in the second stage of labour. Based on a background risk of operative delivery of 49%, for a reduction to 35%, an alpha value of 0.05 and a beta value of 0.2, 416 participants will need to be enrolled. Participants will be randomised to either prophylactic manual rotation or a sham procedure. The primary outcome will be operative delivery. Secondary outcomes will be caesarean section, significant maternal mortality and morbidity, and significant perinatal mortality and morbidity. Analysis will be on an intention-to-treat basis. Primary and secondary outcomes will be compared using a chi-squared test. A logistic regression for the primary outcome will be undertaken to account for potential confounders. This study has been approved by the Ethics Review Committee (RPAH Zone) of the Sydney Local Health District, Sydney, Australia, (protocol number: X110410). DISCUSSION: This trial addresses an important clinical question concerning a commonly used procedure which has the potential to reduce operative delivery and its associated complications. Some issues discussed in the protocol include methods of assessing risk of bias due to inadequate masking of a procedural interventions, variations in intervention efficacy due to operator experience and the recruitment difficulties associated with intrapartum studies. TRIAL REGISTRATION: This trial was registered with the Australian New Zealand Clinical Trials Registry (identifier: ACTRN12613000005752 ) on 4 January 2013.