Assistência ao parto pélvico / Breech birth assistance

É imprescindível retomar o ensino da versão cefálica externa e das manobras tocúrgicas no parto pélvico vaginal, tanto em litotomia quanto na posição vertical. A adoção de protocolos rígidos para o parto pélvico vaginal planejado correlaciona-se com taxa de sucesso de aproximadamente 70% e taxas de resultados adversos inferiores a 7%. A morbimortalidade fetal e neonatal é semelhante à de cesárea planejada. Gestantes elegíveis para o parto pélvico vaginal devem concordar com a via de parto, possuir baixo risco de complicações e ser assistidas por profissionais com experiência em parto vaginal de apresentações anômalas e suas manobras obstétricas. Cesariana prévia e prematuridade entre 32 e 36 semanas não são contraindicações absolutas ao parto pélvico vaginal, devendo ser individualmente avaliadas na decisão da via de parto. Neonatologistas devem estar presentes no nascimento de fetos pélvicos, e um exame neonatal completo deve ser realizado. A rotação posterior do dorso fetal, o prolapso de cordão umbilical, a deflexão dos braços e/ou do polo cefálico e o encarceramento da cabeça derradeira são as principais distocias relacionadas à assistência ao parto pélvico por via vaginal. Todo profissional que assiste parto pélvico vaginal deve estar capacitado para a resolução adequada desses eventos. No parto pélvico vaginal em litotomia, as principais manobras para o auxílio ao desprendimento da pelve fetal são a tração inferior bidigital na prega inguinal e a manobra de Pinard; para o desprendimento do tronco fetal, as de Rojas, Deventer-Miler e Pajot; e para o desprendimento da cabeça derradeira, as de Mauriceau, Bracht, Champetier de Ribes e Praga e o parto vaginal operatório com o fórcipe de Piper. As posições não litotômicas no parto pélvico vaginal se associam à redução dos períodos de dilatação e expulsão, da taxa de cesariana, da necessidade de manobras para extração fetal e da taxa de lesões neonatais. No parto pélvico vaginal assistido na posição de quatro apoios, os aspectos a serem observados durante o desprendimento do corpo fetal incluem o tônus dos membros inferiores fetais, a rotação correta do tronco fetal (abdome fetal voltado para o dorso materno), o ingurgitamento vascular do cordão umbilical, a presença dos cotovelos e das pregas do tórax fetal e a dilatação anal materna. No parto pélvico vaginal assistido na posição de quatro apoios, mais da metade dos fetos se desprendem sem a necessidade de nenhuma manobra. Habitualmente, apenas duas manobras podem ser necessárias: uma para auxílio à saída dos ombros ("rotação 180°-90°") e outra para desprendimento da cabeça fetal ("Frank nudge").

Internal podalic version of second twin: Improving feet identification using a simulation model.

BACKGROUND: Podalic version and breech extraction require high obstetrical expertise. Identifying fetal extremities is the first crucial step for trainees. When this skill is not polished enough, it increases the inter-twin delivery interval and can even jeopardize the whole manoeuver. MATERIAL AND METHODS: We present a model for simulating and training this specific skill, with obstetrical mannequin, and 3D printed hands and feet. Five feet and five hands (five rights and five lefts of each one) were printed in 3D after initial ultrasound acquisition of a near term fetus. Each foot and hand, was individually set in a condom filled with 100 cc of water and closed with a knot. A Sophie's Mum Birth Simulator Version 4.0 de MODEL-med was placed on the edge of the table. Each hand and foot was inserted into the pelvic mannequin. An evaluation of the students' skills using this model was performed. A significant reduction of the global mean to extract the first foot and all the feet was noticed at three month of interval. CONCLUSION: This model is an option to train and assess a crucial skill for version and breech extraction.

Twin vaginal delivery: To maintain skill - simulation is required.

BACKGROUND: Although most societies of obstetrics advocate vaginal delivery of twins, there has been a steady rise in the rate of twin cesarean sections. We risk perhaps losing in a single generation our obstetrical learning and skills because of medicolegal and emotionally charged issues. METHODS: We have therefore designed a realistic as possible simulation model of second twin delivery and tested it on residents in obstetrics. FINDINGS: Between two trials, we noted a significant improvement in the time required for internal podalic version and breech extraction. We also observed a significant improvement in the confidence score between the two trials. INTERPRETATION: We have designed a simulation device that improves obstetrical skills for second twin delivery and which we hope will participate in the comeback of vaginal delivery for this indication and contribute to the fight against the dangerous trend of rising rates of cesarean delivery for twins. Our model completely fits the paradigm of simulation in medical pedagogy.

Global competencies for midwives: external cephalic version; ultrasonography, and tobacco cessation intervention.

PROBLEM AND BACKGROUND: The International Confederation of Midwives (ICM) conducts regular updates to the Essential Competencies for Basic Midwifery Practice to determine the introduction or retention of items in the global scope of midwifery practice guidance document. AIM: This article presents the review process that underpinned the deliberation about three specific clinical practices: external cephalic version, prenatal ultrasonography, and tobacco cessation interventions that occurred during the 2016-2017 global update study. METHODS: A brief outline of the research methodology used in the 2016-2017 study is provided. Literature summaries about safety and effectiveness of three clinical skills are offered. Data addressing global and regional variations in support of each practice and final disposition of the items are documented. FINDINGS: External cephalic version did not receive sufficient document support for inclusion in the initial list of items to be tested in the study. Prenatal ultrasonography was supported as an advanced (76.6%) or country-specific (18.8%) skill that midwives could acquire, to promote wider global access for pregnant women. Midwives' participation in tobacco cessation counselling was supported (≥85%) in each of ICM's regions. Knowledge about World Health Organization recommendations for nicotine replacement therapy was endorsed as an additional (62.4%) or country-specific (29.3%) skill. DISCUSSION AND CONCLUSION: The current evidence of safety of midwives performing external cephalic version led to the recommendation that it be considered in the next document update. Conflicting views of midwives' role in acquiring skills to conduct prenatal ultrasound were evident. There was strong support for participation in smoking cessation counselling, but knowledge of World Health Organization recommendations was not highly endorsed.

Effectiveness of vaginal breech birth training strategies: An integrative review of the literature.

BACKGROUND: The safety of vaginal breech birth depends on the skill of the attendant. The objective of this review was to identify, synthesize, and report the findings of evaluated breech birth training strategies. METHODS: A systematic search of the following on-line databases: Medline, CINAHL Plus, PsychINFO, EBM Reviews/Cochrane Library, EMBASE, Maternity and Infant Care, and Pubmed, using a structured search strategy. Studies were included in the review if they evaluated the efficacy of a breech birth training program or particular strategies, including obstetric emergency training evaluations that reported differentiated outcomes for breech. Out of 1040 original citings, 303 full-text articles were assessed for eligibility, and 17 methodologically diverse studies met the inclusion criteria. A data collection form was used to extract relevant information. Data were synthesized, using an evaluation levels framework, including reaction, learning (subjective and objective assessment), and behavioral change. RESULTS: No evaluations included clinical outcome data. Improvements in self-assessed skill and confidence were not associated with improvements in objective assessments or behavioral change. Inclusion of breech birth as part of an obstetric emergencies training package without support in practice was negatively associated with subsequent attendance at vaginal breech births. CONCLUSIONS: As a result of the heterogeneity of the studies available, and the lack of evidence concerning neonatal or maternal outcomes, no conclusive practice recommendations can be made. However, the studies reviewed suggest that vaginal breech birth training may be enhanced by reflection, repetition, and experienced clinical support in practice. Further evaluation studies should prioritize clinical outcome data.

[Training achieves an internal version and a total breech extraction at birth of second twin]. / Formation à la version par manœuvre interne et à la grande extraction lors de l'accouchement du deuxième jumeau.

OBJECTIVES: To evaluate French residents in obstetrics and gynaecology's training to internal version and breech extraction during vaginal delivery of the second twin. METHODS: A national descriptive survey conducted among 1064 residents between July and October 2014. Respondents were invited by email to specify the type of theoretical and practical training they had received, their university hospital obstetrical practices and the number of vaginal internal version and breech extraction of the second twin they had seen and performed. RESULTS: Response rate was 38.7% (n=412). Regarding the type of theoretical training, 39.8% of residents (n=164) had received the obstetrical mechanics and techniques degree; 47.6% (n=196) had got a teaching during special education classes and 29.4% (n=121) a training on mannequin. There were important differences between regions. At the end of residency, 45.6% of residents (n=36) had practiced more than five vaginal internal version and breech extraction of the second twin. CONCLUSION: Internal version and breech extraction are difficult but essential maneuvers for the management of twin delivery. The French residents in obstetrics and gynaecology's training for these maneuvers seems to be insufficient. It is necessary to improve their teaching, this teaching must also be equivalent between regions.

A qualitative interview study exploring pregnant women's and health professionals' attitudes to external cephalic version.

BACKGROUND: Women who have a breech presentation at term have to decide whether to attempt external cephalic version (ECV) and how they want to give birth if the baby remains breech, either by planned caesarean section (CS) or vaginal breech birth. The aim of this study was to explore the attitudes of women with a breech presentation and health professionals who manage breech presentation to ECV. METHODS: We carried out semi-structured interviews with pregnant women with a breech presentation (n=11) and health professionals who manage breech presentation (n=11) recruited from two hospitals in North East England. We used purposive sampling to include women who chose ECV and women who chose planned CS. We analysed data using thematic analysis, comparing between individuals and seeking out disconfirming cases. RESULTS: Four main themes emerged from the data collected during interviews with pregnant women with a breech presentation: ECV as a means of enabling natural birth; concerns about ECV; lay and professional accounts of ECV; and breech presentation as a means of choosing planned CS. Some women's attitudes to ECV were affected by their preferences for how to give birth. Other women chose CS because ECV was not acceptable to them. Two main themes emerged from the interview data about health professionals' attitudes towards ECV: directive counselling and attitudes towards lay beliefs about ECV and breech presentation. CONCLUSIONS: Women had a range of attitudes to ECV informed by their preferences for how to give birth; the acceptability of ECV to them; and lay accounts of ECV, which were frequently negative. Most professionals described having a preference for ECV and reported directively counselling women to choose it. Some professionals were dismissive of lay beliefs about ECV. Some key challenges for shared decision making about breech presentation were identified: health professionals counselling women directively about ECV and the differences between evidence-based information about ECV and lay beliefs. To address these challenges a number of approaches will be required.

Implementation of the external cephalic version in breech delivery. Dutch national implementation study of external cephalic version.

BACKGROUND: Breech presentation occurs in 3 to 4% of all term pregnancies. External cephalic version (ECV) is proven effective to prevent vaginal breech deliveries and therefore it is recommended by clinical guidelines of the Royal Dutch Organisation for Midwives (KNOV) and the Dutch Society for Obstetrics and Gynaecology (NVOG). Implementation of ECV does not exceed 50 to 60% and probably less.We aim to improve the implementation of ECV to decrease maternal and neonatal morbidity and mortality due to breech presentations. This will be done by defining barriers and facilitators of implementation of ECV in the Netherlands. An innovative implementation strategy will be developed based on improved patient counselling and thorough instructions of health care providers for counselling. METHOD/DESIGN: The ultimate purpose of this implementation study is to improve counselling of pregnant women and information of clinicians to realize a better implementation of ECV.The first phase of the project is to detect the barriers and facilitators of ECV. The next step is to develop an implementation strategy to inform and counsel pregnant women with a breech presentation, and to inform and educate care providers. In the third phase, the effectiveness of the developed implementation strategy will be evaluated in a randomised trial. The study population is a random selection of midwives and gynaecologists from 60 to 100 hospitals and practices. Primary endpoints are number of counselled women. Secondary endpoints are process indicators, the amount of fetes in cephalic presentation at birth, complications due to ECV, the number of caesarean sections and perinatal condition of mother and child. Cost effectiveness of the implementation strategy will be measured. DISCUSSION: This study will provide evidence for the cost effectiveness of a structural implementation of external cephalic versions to reduce the number of breech presentations at term. TRIAL REGISTRATION: Dutch Trial Register (NTR): 1878.

Obstetric trainees' experience in VBD and ECV in the UK.

A survey of 100 obstetric trainees was performed to determine the level of experience in vaginal breech delivery (VBD) and external cephalic version (ECV) in the UK. The response rate was 80%. Sixty-four of the respondents were in their 4th or 5th year of old-style 'Calman' specialist registrar training, with the majority having had > or =5 years of experience in obstetrics including overseas experience. A total of 15 had performed less than five, 12 between five and ten, and 53 more than ten VBDs. In spite of limited training, 80% of the trainees felt confident in performing vaginal breech deliveries and were happy to offer VBD as an option in the future. All the respondents offered ECV to their patients and 63% had undergone practical training. Training in VBD should be continued in all settings and it should be a part of routine skills and drills teaching.

An anonymous survey of registrar training in the use of Kjelland's forceps in Australia.

Large series suggest that, when used with appropriate care and skill, rotational deliveries with Kjelland's forceps are a safe and useful procedure. We surveyed obstetric trainees in Australia to assess their experience with, and intentions to use, Kjelland's forceps. The response rate was 65%, and it was uncommon for even senior trainees to have performed more than ten Kjelland's forceps rotations during their training. Ninety-four per cent of final-year trainees stated they did not intend to use Kjelland's forceps in their consultant practice.

Improving neonatal outcome through practical shoulder dystocia training.

OBJECTIVE: To compare the management of and neonatal injury associated with shoulder dystocia before and after introduction of mandatory shoulder dystocia simulation training. METHODS: This was a retrospective, observational study comparing the management and neonatal outcome of births complicated by shoulder dystocia before (January 1996 to December 1999) and after (January 2001 to December 2004) the introduction of shoulder dystocia training at Southmead Hospital, Bristol, United Kingdom. The management of shoulder dystocia and associated neonatal injuries were compared pretraining and posttraining through a review of intrapartum and postpartum records of term, cephalic, singleton births in which difficulty with the shoulders was recorded during the two study periods. RESULTS: There were 15,908 and 13,117 eligible births pretraining and posttraining, respectively. The shoulder dystocia rates were similar: pretraining 324 (2.04%) and posttraining 262 (2.00%) (P=.813). After training was introduced, clinical management improved: McRoberts' position, pretraining 95/324 (29.3%) to 229/262 (87.4%) posttraining (P<.001); suprapubic pressure 90/324 (27.8%) to 119/262 (45.4%) (P<.001); internal rotational maneuver 22/324 (6.8%) to 29/262 (11.1%) (P=.020); delivery of posterior arm 24/324 (7.4%) to 52/262 (19.8%) (P<.001); no recognized maneuvers performed 174/324 (50.9%) to 21/262 (8.0%) (P<.001); documented excessive traction 54/324 (16.7%) to 24/262 (9.2%) (P=.010). There was a significant reduction in neonatal injury at birth after shoulder dystocia: 30/324 (9.3%) to 6/262 (2.3%) (relative risk 0.25 [confidence interval 0.11-0.57]). CONCLUSION: The introduction of shoulder dystocia training for all maternity staff was associated with improved management and neonatal outcomes of births complicated by shoulder dystocia. LEVEL OF EVIDENCE: II.

Development and pilot-testing of a decision aid for women with a breech-presenting baby.

OBJECTIVE: To develop a decision aid for pregnant women with a breech presentation at term, and to assess its acceptability. METHODS: The external cephalic version (ECV) decision aid was developed using the Ottawa Decision Support Framework and a systematic review of the evidence to provide probabilistic information about the benefits and risks of options. It incorporates a workbook supplemented by a CD and worksheet, and these were evaluated in a pilot study using self-administered questionnaires. PARTICIPANTS: 19 women with a breech presentation attending antenatal clinics at a local obstetric hospital and 11 recently pregnant women. FINDINGS: Of 30 women surveyed, nearly all found the decision aid clear and easy to understand, and thought that enough information was provided for them to make a decision. Women experienced increased knowledge, reduced decisional conflict, increased satisfaction and participation in decision making without increased anxiety. Participants also found the tool helpful and would recommend it to others. KEY CONCLUSIONS: The ECV decision aid was well accepted and helpful for pregnant women with a breech presenting baby. We are currently evaluating the decision aid in a randomised trial to assess cognitive, affective and health outcomes.