Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstétrique et gynécologie du Canada : JOGC
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J Obstet Gynaecol Can · Aug 2009
Review Practice GuidelineGuidelines for the management of vasa previa.
To describe the etiology of vasa previa and the risk factors and associated condition, to identify the various clinical presentations of vasa previa, to describe the ultrasound tools used in its diagnosis, and to describe the management of vasa previa. ⋯ 1. If the placenta is found to be low lying at the routine second trimester ultrasound examination, further evaluation for placental cord insertion should be performed. (II-2B) 2. Transvaginal ultrasound may be considered for all women at high risk for vasa previa, including those with low or velamentous insertion of the cord, bilobate or succenturiate placenta, or for those having vaginal bleeding, in order to evaluate the internal cervical os. (II-2B) 3. If vasa previa is suspected, transvaginal ultrasound colour Doppler may be used to facilitate the diagnosis. Even with the use of transvaginal ultrasound colour Doppler, vasa previa may be missed. (II-2B) 4. When vasa previa is diagnosed antenatally, an elective Caesarean section should be offered prior to the onset of labour. (II-1A) 5. In cases of vasa previa, premature delivery is most likely; therefore, consideration should be given to administration of corticosteroids at 28 to 32 weeks to promote fetal lung maturation and to hospitalization at about 30 to 32 weeks. (II-2B) 6. In a woman with an antenatal diagnosis of vasa previa, when there has been bleeding or premature rupture of membranes, the woman should be offered delivery in a birthing unit with continuous electronic fetal heart rate monitoring and, if time permits, a rapid biochemical test for fetal hemoglobin, to be done as soon as possible; if any of the above tests are abnormal, an urgent Caesarean section should be performed. (III-B) 7. Women admitted with diagnosed vasa previa should ideally be transferred for delivery in a tertiary facility where a pediatrician and blood for neonatal transfusion are immediately available in case aggressive resuscitation of the neonate is necessary. (II-3B) 8. Women admitted to a tertiary care unit with a diagnosis of vasa previa should have this diagnosis clearly identified on the chart, and all health care providers should be made aware of the potential need for immediate delivery by Caesarean section if vaginal bleeding occurs. (III-B).
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J Obstet Gynaecol Can · Jul 2009
Comparative StudyDoes routine induction of labour at 41 weeks really reduce the rate of caesarean section compared with expectant management?
It is contended that routine induction of labour at 41 completed weeks of gestation reduces, or at least does not increase, a woman's chance of Caesarean section (CS), compared with expectant management. We wanted to know if this was true in our own hospital. ⋯ The contention that routine induction of labour at 41 weeks reduces a woman's chance of delivery by Caesarean section was not supported by the findings of our study. Inducing labour may actually increase the nulliparous woman's risk of delivery by CS.
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To review the physiology of breech birth; to discern the risks and benefits of a trial of labour versus planned Caesarean section; and to recommend to obstetricians, family physicians, midwives, obstetrical nurses, anaesthesiologists, pediatricians, and other health care providers selection criteria, intrapartum management parameters, and delivery techniques for a trial of vaginal breech birth. ⋯ The Society of Obstetricians and Gynaecologists of Canada. SUMMARY STATEMENTS: 1. Vaginal breech birth can be associated with a higher risk of perinatal mortality and short-term neonatal morbidity than elective Caesarean section. (I) 2. Careful case selection and labour management in a modern obstetrical setting may achieve a level of safety similar to elective Caesarean section. (II-1) 3. Planned vaginal delivery is reasonable in selected women with a term singleton breech fetus. (I) 4. With careful case selection and labour management, perinatal mortality occurs in approximately 2 per 1000 births and serious short-term neonatal morbidity in approximately 2% of breech infants. Many recent retrospective and prospective reports of vaginal breech delivery that follow specific protocols have noted excellent neonatal outcomes. (II-1) 5. Long-term neurological infant outcomes do not differ by planned mode of delivery even in the presence of serious short-term neonatal morbidity. (I) RECOMMENDATIONS: LABOUR SELECTION CRITERIA: 1. For a woman with suspected breech presentation, pre- or early labour ultrasound should be performed to assess type of breech presentation, fetal growth and estimated weight, and attitude of fetal head. If ultrasound is not available, Caesarean section is recommended. (II-1A) 2. Contraindications to labour include a. Cord presentation (II-3A) b. Fetal growth restriction or macrosomia (I-A) c. Any presentation other than a frank or complete breech with a flexed or neutral head attitude (III-B) d. Clinically inadequate maternal pelvis (III-B) e. Fetal anomaly incompatible with vaginal delivery (III-B) 3. Vaginal breech delivery can be offered when the estimated fetal weight is between 2500 g and 4000 g. (II-2B) LABOUR MANAGEMENT: 4. Clinical pelvic examination should be performed to rule out pathological pelvic contraction. Radiologic pelvimetry is not necessary for a safe trial of labour; good progress in labour is the best indicator of adequate fetal-pelvic proportions. (III-B) 5. Continuous electronic fetal heart monitoring is preferable in the first stage and mandatory in the second stage of labour. (I-A) When membranes rupture, immediate vaginal examination is recommended to rule out prolapsed cord. (III-B) 6. In the absence of adequate progress in labour, Caesarean section is advised. (II-1A) 7. Induction of labour is not recommended for breech presentation. (II-3B) Oxytocin augmentation is acceptable in the presence of uterine dystocia. (II-1A) 8. A passive second stage without active pushing may last up to 90 minutes, allowing the breech to descend well into the pelvis. Once active pushing commences, if delivery is not imminent after 60 minutes, Caesarean section is recommended. (I-A) 9. The active second stage of labour should take place in or near an operating room with equipment and personnel available to perform a timely Caesarean section if necessary. (III-A) 10. A health care professional skilled in neonatal resuscitation should be in attendance at the time of delivery. (III-A) DELIVERY TECHNIQUE: 11. The health care provider for a planned vaginal breech delivery needs to possess the requisite skills and experience. (II-1A) 12. An experienced obstetrician-gynaecologist comfortable in the performance of vaginal breech delivery should be present at the delivery to supervise other health care providers, including a trainee. (I-A) 13. The requirements for emergency Caesarean section, including availability of the hospital operating room team and the approximate 30-minute timeline to commence a laparotomy, must be in accordance with the recommendations of the SOGC Policy Statement, "Attendance at Labour and Delivery" (CPG No. 89; update in press, 2009). (III-A) 14. The health care provider should have rehearsed a plan of action and should be prepared to act promptly in the rare circumstance of a trapped after-coming head or irreducible nuchal arms: symphysiotomy or emergency abdominal rescue can be life saving. (III-B) 15. Total breech extraction is inappropriate for term singleton breech delivery. (II-2A) 16. Effective maternal pushing efforts are essential to safe delivery and should be encouraged. (II-1A) 17. At the time of delivery of the after-coming head, an assistant should be present to apply suprapubic pressure to favour flexion and engagement of the fetal head. (II-3B) 18. Spontaneous or assisted breech delivery is acceptable. Fetal traction should be avoided, and fetal manipulation must be applied only after spontaneous delivery to the level of the umbilicus. (III-A) 19. Nuchal arms may be reduced by the Løvset or Bickenbach manoeuvres. (III-B) 20. The fetal head may deliver spontaneously, with the assistance of suprapubic pressure, by Mauriceau-Smellie-Veit manoeuvre, or with the assistance of Piper forceps. (III-B) SETTING AND CONSENT: 21. In the absence of a contraindication to vaginal delivery, a woman with a breech presentation should be informed of the risks and benefits of a trial of labour and elective Caesarean section, and informed consent should be obtained. A woman's choice of delivery mode should be respected. (III-A) 22. The consent discussion and chosen plan should be well documented and communicated to labour-room staff. (III-B) 23. Hospitals offering a trial of labour should have a written protocol for eligibility and intrapartum management. (III-B) 24. Women with a contraindication to a trial of labour should be advised to have a Caesarean section. Women choosing to labour despite this recommendation have a right to do so and should not be abandoned. They should be provided the best possible in-hospital care. (III-A) 25. The Society of Obstetricians and Gynaecologists of Canada (SOGC), in collaboration with the Association of Professors of Obstetrics and Gynaecology (APOG), The College of Family Physicians of Canada (CFPC), and The Canadian Association of Midwives (CAM) should revise the training requirements at the undergraduate and postgraduate levels. SOGC will continue to promote training of current health care providers through the MOREOB, ALARM (Advances in Labour and Risk Management), and other courses. (III-A) 26. Theoretical and hands-on breech birth training simulation should be part of basic obstetrical skills training programs such as ALARM, ALSO (Advanced Life Support Training in Obstetrics), and MOREOB to prepare health care providers for unexpected vaginal breech births. (III-B).
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J Obstet Gynaecol Can · Apr 2009
Practice GuidelineManagement guidelines for obstetric patients and neonates born to mothers with suspected or probable severe acute respiratory syndrome (SARS).
This document summarizes the limited experience of SARS in pregnancy and suggests guidelines for management. ⋯ The Society of Obstetricians and Gynaecologists of Canada. Recommendations 1. All hospitals should have infection control systems in place to ensure that alerts regarding changes in exposure risk factors for SARS or other potentially serious communicable diseases are conveyed promptly to clinical units, including the labour and delivery unit. (III-C) 2. At times of SARS outbreaks, all pregnant patients being assessed or admitted to the hospital should be screened for symptoms of and risk factors for SARS. (III-C) 3. Upon arrival in the labour triage unit, pregnant patients with suspected and probable SARS should be placed in a negative pressure isolation room with at least 6 air exchanges per hour. All labour and delivery units caring for suspected and probable SARS should have available at least one room in which patients can safely labour and deliver while in need of airborne isolation. (III-C) 4. If possible, labour and delivery (including operative delivery or Caesarean section) should be managed in a designated negative pressure isolation room, by designated personnel with specialized infection control preparation and protective gear. (III-C) 5. Either regional or general anaesthesia may be appropriate for delivery of patients with SARS. (III-C) 6. Neonates of mothers with SARS should be isolated in a designated unit until the infant has been well for 10 days, or until the mother's period of isolation is complete. The mother should not breastfeed during this period. (III-C) 7. A multidisciplinary team, consisting of obstetricians, nurses, pediatricians, infection control specialists, respiratory therapists, and anaesthesiologists, should be identified in each unit and be responsible for the unit organization and implementation of SARS management protocols. (III-C) 8. Staff caring for pregnant SARS patients should not care for other pregnant patients. Staff caring for pregnant SARS patients should be actively monitored for fever and other symptoms of SARS. Such individuals should not work in the presence of any SARS symptoms within 10 days of exposure to a SARS patient. (III-C) 9. All health care personnel, trainees, and support staff should be trained in infection control management and containment to prevent spread of the SARS virus. (III-A) 10. Regional health authorities in conjunction with hospital staff should consider designating specific facilities or health care units, including primary, secondary, or tertiary health care centres, to care for patients with SARS or similar illnesses. (III-A).
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To determine the factors leading to maternal critical care in a tertiary obstetric hospital and the associated trends. ⋯ The majority of maternal transfers for critical care occur postpartum, and in more than half of the cases the reason for transfer is hemorrhage or hypertensive disease. Women with a multiple pregnancy had a significantly greater rate of transfer than those with a singleton, and women with a triplet pregnancy had a greater rate than those with twins. There was a non-significant increase in the number of maternal transfers over the study period.