Factors related to the practice of vacuum-assisted birth: findings from provider interviews in Kigoma, Tanzania.

BACKGROUND: Vacuum-assisted birth is not widely practiced in Tanzania but efforts to re-introduce the procedure suggest some success. Few studies have targeted childbirth attendants to learn how their perceptions of and training experiences with the procedure affect practice. This study explores a largely rural cohort of health providers to determine associations between recent practice of the procedure and training, individual and contextual factors. METHODS: A cross-sectional knowledge, attitudes and practice survey of 297 providers was conducted in 2019 at 3 hospitals and 12 health centers that provided comprehensive emergency obstetric care. We used descriptive statistics and binary logistic regression to model the probability of having performed a vacuum extraction in the last 3 months. RESULTS: Providers were roughly split between working in maternity units in hospitals and health centers. They included: medical doctors, assistant medical officers (14%); clinical officers (10%); nurse officers, assistant nurse officers, registered nurses (32%); and enrolled nurses (44%). Eighty percent reported either pre-service, in-service vacuum extraction training or both, but only 31% reported conducting a vacuum-assisted birth in the last 3 months. Based on 11 training and enabling factors, a positive association with recent practice was observed; the single most promising factor was hands-on solo practice during in-service training (66% of providers with this experience had conducted vacuum extraction in the last 3 months). The logistic regression model showed that providers exposed to 7-9 training modalities were 7.8 times more likely to have performed vacuum extraction than those exposed to fewer training opportunities (AOR = 7.78, 95% CI: 4.169-14.524). Providers who worked in administrative councils other than Kigoma Municipality were 2.7 times more likely to have conducted vacuum extraction than their colleagues in Kigoma Municipality (AOR = 2.67, 95% CI: 1.023-6.976). Similarly, providers posted in a health center compared to those in a hospital were twice as likely to have conducted a recent vacuum extraction (AOR = 2.11, 95% CI: 1.153-3.850), and finally, male providers were twice as likely as their female colleagues to have performed this procedure recently (AOR = 1.95, 95% CI: 1.072-3.55). CONCLUSIONS: Training and location of posting were associated with recent practice of vacuum extraction. Multiple training modalities appear to predict recent practice but hands-on experience during training may be the most critical component. We recommend a low-dose high frequency strategy to skills building with simulation and e-learning. A gender integrated approach to training may help ensure female trainees are exposed to critical training components.

Simulation training program for vacuum application to improve technical skills in vacuum-assisted vaginal delivery.

OBJECTIVE: evaluation of technical skills of the operators during the obstetrical device application for operative vaginal delivery, named kiwi-cup in a simulation training program. METHODS: Thirty-five residents in obstetrics and gynecology of the University of Pisa, Italy were recruited and evaluated with an assessment scale on technical skills from 0 to 55 points. They performed various operative vaginal delivery simulations with kiwi-cup and were evaluated at time 0 by a tutor. After 8 weeks, simulation training was repeated and trainees were re-evaluated by the same tutor. RESULTS: after 8 weeks from the first simulation session, trainees have been shown to increase technical skills (46.27 ± 4.6 with p-value < 0.0001), the successful application rate (85.71% with p-value 0.0161).) and to reduce the time to complete the procedure (86.2 ± 29.9 s with p-value < 0.0001). CONCLUSION: simulation training on operational vaginal delivery significantly increases technical skills, improves successful rate, and reduces the time taken to complete the procedure. CLINICAL TRIAL REGISTRATION: Not applicable.

Low use of vacuum extraction: Health care Professionals' Perspective in a University Hospital, Dar es Salaam.

BACKGROUND: Use of vacuum extraction (VE) has been declining in low and middle income countries. At the highest referral hospital Tanzania, 54% of deliveries are performed by caesarean section (CS) and only 0.8% by VE. Use of VE has the potential to reduce CS rates and improve maternal and neonatal outcomes but causes for its low use is not fully explored. METHOD: During November and December of 2017 participatory observations, semi-structured in-depth interviews (n = 29) and focus group discussions (n = 2) were held with midwives, residents and specialists working at the highest referral hospital in Tanzania. Thematic analysis was used to identify rationales for low VE use. FINDINGS: Unstructured and inconsistent clinical teaching structure, interdependent on a fear and blame culture, as well as financial incentives and a lack of structured, adhered to and updated guidelines were identified as rationales for CS instead of VE use. Although all informants showed positivity towards clinical teaching of VE, a subpar communication between clinics and academia was stated as resulting in absent clinical teachers and unaccountable students. CONCLUSION: This study draws connections between the low use of VE and the inconsistent and unstructured clinical training of VE expressed through the health care providers' points of view. However, clinical teaching in VE was highly welcomed by the informers which may serve as a good starting point for future interventions.

Effect of team training and monitoring on the rate of failed mid and low cavity vacuum extraction: a hospital based intervention study.

BACKGROUND: Clinical team training has been advocated as a means to improve delivery care, and failed extractions is a suggested variable for clinical audit in instrumental vaginal delivery. Other activities may also have intended or unintended effects on care processes or outcomes. METHODS: We retrospectively observed 1074 mid and low vacuum extraction deliveries during three time periods (prevalence periods): Baseline (period 0), implemented team training (period 1 and 2) and monitoring of traction force during vacuum extraction (period 2). Our primary outcome was failed extraction followed by emergency cesarean section or obstetric forceps delivery. RESULTS: The prevalence proportion (relative risk) of failed extraction decreased significantly after implementation of team training, from 19% (period 0) to 8 % (period 1), corresponding to a relative risk of 0.48 [0.26-0.87]. The secondary procedural outcome complicated delivery (duration > 15 min or number of pulls > 6, or cup detachment > 1) was decreased in period 2 compared to period 1, RR 0.42 [0.23-0.76]. Secondary clinical (neonatal) outcome were not affected. CONCLUSION: Clinically based educational efforts and increased monitoring improved procedural outcome without improving neonatal outcome. The study design has inherent limitations in making causal inference.

[A Structured and Photographic Documentation of the Vacuum-Assisted Vaginal Delivery]. / Eine strukturierte und fotografische Dokumentation der Vakuumentbindung.

The correct placement of the vacuum cup is essential to reduce both maternal and neonatal morbidity after a vacuum-assisted vaginal delivery. Therefore, a checklist based report with all relevant clinical findings and a photo of the infant's head with the location of vacuum tag was introduced to make the exact application of the cup reproducible for. training/instruction purpose.

Perinatal and Maternal Outcomes After Training Residents in Forceps Before Vacuum Instrumental Birth.

OBJECTIVE: To compare the rates of attempted and successful instrumental births, intrapartum cesarean delivery, and subsequent perinatal and maternal morbidity before and after implementing a training intervention to arrest the decline in forceps competency among resident obstetricians. METHODS: This retrospective cohort study examined all attempted instrumental births at Monash Health from 2005 to 2014. We performed an interrupted time-series analysis to compare outcomes of attempted instrumental births in 2005-2009 with those in 2010-2014. RESULTS: There were 72,490 births from 2005 to 2014 at Monash Health, of which 8,789 (12%) were attempted instrumental vaginal births. After the intervention, rates of forceps births increased [autoregressive integrated moving average coefficient (ß) 1.5, 95% confidence interval (CI) 1.03-1.96; P<.001], and vacuum births decreased (ß -1.43, 95% CI -2.5 to -0.37; P<.01). Rates of postpartum hemorrhage decreased (ß -1.3, 95% CI -2.07 to -0.49; P=.002) and epidural use increased (ß 0.03, 95% CI 0.02-0.05; P<.001). There was no change in rates of unsuccessful instrumental births (ß -0.39, 95% CI -3.03 to 2.43; P=.83), intrapartum cesarean delivery (ß -0.29, 95% CI -0.55 to 0.14; P=.24), third- and fourth-degree tears (ß -1.04, 95% CI -3.1 to 1.00; P=.32), or composite neonatal morbidity (ß -0.18, 95% CI -0.38 to 0.02, P=.08). Unsuccessful instrumental births were more likely to be in nulliparous women (P<.001), less likely to have a senior obstetrician present (P<.001), be at later gestation (P<.001), and involved larger birth weight neonates (P<.001). CONCLUSION: A policy of ensuring obstetric forceps competency before beginning vacuum training results in more forceps births, fewer postpartum hemorrhages, and no increase in third- and fourth-degree perineal injuries or episiotomies.

Could introducing vacuum delivery into the education curriculum of community midwives in Yemen improve maternal and neonatal mortality and morbidity outcomes?

At present in Yemen the neonatal mortality rate stands at 12%. A contributing factor is that when abnormalities arise during labour in rural areas, there is an absence of trained medical staff to manage complications. Consequently, childbearing women are expected to travel long distances to hospitals to receive Essential Obstetric Care (EOC). This paper presents a debate over whether vacuum delivery should be introduced into the education curriculum of community midwifery courses in Yemen. It is proposed that this fundamental change to both the educational system and the community midwives role could facilitate a reduction in maternal and neonatal mortality and morbidity figures in Yemen.

The effect of vacuum operator's experience on Apgar scores.

OBJECTIVE: To determine the effect of a vacuum operator's experience on Apgar scores. METHODS: A historical cohort study was conducted. All women who delivered by vacuum extraction between January 2003 and December 2007 at Songklanagarind Hospital were recruited. Vacuum operators were divided into two groups: staff doctors and residents. Comparisons of Apgar scores and rates of low Apgar scores (≤7) between the two groups were studied. A multivariate logistic regression analysis was used to control confounding variables for low Apgar scores. RESULTS: The percentages for the procedure performed by the staff doctors and residents were 76.9 and 23.1%. At 1 min, the rates of low Apgar scores in the staff and resident groups were 6.7 and 24.1% (p<0.001), and at 5 min, the rates of low Apgar scores were 0.6 and 5.2% (p<0.001). Multivariate logistic regression analysis showed that the operator's experience was an independent risk factor for low Apgar scores. The residents had a 2.9-fold increased risk of low Apgar scores at 1 min compared with the staff doctors (adjusted odds ratio 2.9; 95% confidence interval 1.7-6.8). In the resident group, the third year residents had the lowest risk of low Apgar scores. CONCLUSIONS: The vacuum operator's experience was an independent risk factor for low Apgar scores. Improvement of the residency training program is mandatory.

Instrumental delivery: clinical practice guidelines from the French College of Gynaecologists and Obstetricians.

Routine use of a partograph is associated with a reduction in the use of forceps, but is not associated with a reduction in the use of vacuum extraction (Level A). Early artificial rupture of the membranes, associated with oxytocin perfusion, does not reduce the number of operative vaginal deliveries (Level A), but does increase the rate of fetal heart rate abnormalities (Level B). Early correction of lack of progress in dilatation by oxytocin perfusion can reduce the number of operative vaginal deliveries (Level B). The use of low-concentration epidural infusions of bupivacaine potentiated by morphinomimetics reduces the number of operative interventions compared with larger doses (Level A). Placement of an epidural before 3-cm dilatation does not increase the number of operative vaginal deliveries (Level A). Posterior positions of the fetus result in more operative vaginal deliveries (Level B). Manual rotation of the fetus from a posterior position to an anterior position may reduce the number of operative deliveries (Level C). Walking during labour is not associated with a reduction in the number of operative vaginal deliveries (Level A). Continuous support of the parturient by a midwife or partner/family member during labour reduces the number of operative vaginal deliveries (Level A). Under epidural analgesia, delayed pushing (2h after full dilatation) reduces the number of difficult operative vaginal deliveries (Level A). Ultrasound is recommended if there is any clinical doubt about the presentation of the fetus (Level B). The available scientific data are insufficient to contra-indicate attempted midoperative delivery (professional consensus). The duration of the operative intervention is slightly shorter with forceps than with a vacuum extractor (Level C). Nonetheless, the urgency of operative delivery is not a reason to choose one instrument over another (professional consensus). The cup-shaped vacuum extractor seems to be the instrument of choice for operative deliveries of fetuses in a cephalic transverse position, and may also be preferred for fetuses in a posterior position (professional consensus). Vacuum extraction deliveries fail more often than forceps deliveries (Level B). Overall, immediate maternal complications are more common for forceps deliveries than vacuum extraction deliveries (Level B). Compared with forceps, operative vaginal delivery using a vacuum extractor appears to reduce the number of episiotomies (Level B), first- and second-degree perineal lesions, and damage to the anal sphincter (Level B). Among the long-term complications, the rate of urinary incontinence is similar following forceps, vacuum extraction and spontaneous vaginal deliveries (Level B). Anal incontinence is more common following forceps delivery (Level B). Persistent anal incontinence has a similar prevalence regardless of the mode of delivery (caesarean or vaginal, instrumental or non-instrumental), suggesting the involvement of other factors (Level B). Rates of immediate neonatal mortality and morbidity are similar for forceps and vacuum extraction deliveries (Level B). It appears that difficult instrumental delivery may lead to psychological sequelae that may result in a decision not to have more children (Level C). The rates of neonatal convulsions, intracranial haemorrhage and jaundice do not differ between forceps and vacuum extraction deliveries (Levels B and C). Rapid sequence induction with a Sellick manoeuvre (pressure to the cricoid cartilage) and tracheal intubation with a balloon catheter is recommended for any general anaesthesia (Level B). Training must ensure that obstetricians can identify indications and contra-indications, choose the appropriate instrument, use the instruments correctly, and know the principles of quality control applied to operative vaginal delivery. Nowadays, traditional training can be accompanied by simulations. Training should be individualized and extended for some students.

Operative vaginal delivery.

Operative vaginal delivery remains a valid option when problems arise in the second stage of labor. The most common indications are fetal compromise and failure to deliver spontaneously with maximum maternal effort. There is a clear trend to choose vacuum extraction over forceps to assist delivery, but the evidence supporting that trend is unconvincing. Recent literature confirms some advantages for forceps (eg, a lower failure rate) and some disadvantages for vacuum extraction (eg, increased neonatal injury), depending on the clinical circumstances. To preserve the option of forceps delivery, residency training programs must incorporate detailed instruction in forceps techniques and related skills into their curricula. Simulation training can enhance residents' understanding of mechanical principles and should logically precede clinical work.

[Simulation in obstetrics and gynecology - a new method to improve the management of acute obstetric emergencies]. / Simulation in der Geburtshilfe - eine neue Methode zur Verbesserung des Managements geburtshilflicher Notfälle?

In medical specialties, such as anaesthesia, the use of simulation has increased over the past 15 years. Medical simulation attempts to reproduce important clinical situations to practise team training or individual skills in a risk free environment. For a long time simulators have only been used by the airline industry and the military. Simulation as a training tool for practicing critical situations in obstetrics is not very common yet. Experience and routine are crucial to evaluate a medical emergency correctly and to take the appropriate measures. Nowadays the obstetrician requires a combination of manual and communication skills, fast emergency management and decision-making skills. Therefore simulation may help to attain these skills. This may not only satisfy the high expectations and demands of the patients towards doctors and midwives but would also help to keep calm in difficult situations and avoid mistakes. The goal is a risk free delivery for mother and child. Therefore we developed a simulation- based curricular unit for hands-on training of four different obstetric emergency scenarios. In this paper we describe our results about the feedback of doctors and midwives on their personal experiences due to this simulation-based curricular unit. The results indicate that simulation seems to be an accepted method for team training in emergency situations in obstetrics. Whether patient security increases after the regularly use of drill training needs to be investigated in further studies.

[Operative vaginal deliveries training]. / Formation et apprentissage des extractions.

The appropriate use of forceps, vacuums or spatulas facilitates the rapid delivery of foetuses faced with life-threatening situations. It also makes possible the relief of certain cases of prolonged second-stage labor. In France, operative vaginal delivery (OVD) accounts for approximately 10% of all births. OVD training aims to optimize maternal, as well as neonatal safety. It should enable trainees to indicate or contraindicate an OVD safely, as well as to choose the appropriate instrument, use it correctly, and master quality control principles. Traditional OVD training is confronted with both spatial and time-related limitations. Spatial constraints involve both the teacher and trainee who only have limited visual access to the pelvic canal, and the head of the foetus; the time constraint occurs whenever the OVD occurs in an emergency setting. These limitations have been further aggravated by new constraints: decreasing time dedicated to training (European safety rules prohibit work the day after night duty), increasing litigation, and constraints imposed by society. Training by means of simulation removes such limitations making it possible to both avoid exposing pregnant women to the hazards of traditional training, and adapt the training to the skills of each trainee. OVD training should include forceps, vacuums and the use of spatulas. The OVD skills of obstetricians should be audited regularly on both a personal and a confidential level. Such audits could be based on a method using a simulator. Prospective studies comparing traditional and simulation-based training should be encouraged.

Vacuum and forceps training in residency: experience and self-reported competency.

OBJECTIVE: Determine chief residents' experience with vacuum and forceps deliveries and self-perceived competencies with the procedures. STUDY DESIGN: Study 1: A written questionnaire was mailed to all fourth year residents in US RRC approved Ob/Gyn programs. Study 2: The study was replicated using a web-based survey the following year. Data were analyzed with chi (2) and Wilcoxon Signed Rank tests using SPSS. RESULTS: Surveys were received from 238 residents (20%) in Study 1 and 269 residents in Study 2 (23%, representing 50% of all residency programs). In both studies, residents reported performing significantly less forceps than vacuum deliveries. Virtually all residents wanted to learn to perform both deliveries, indicated attendings were willing to teach both, and felt competent to perform vacuum deliveries (Study 1, 94.5%; Study 2, 98.5%); only half felt competent to perform forceps deliveries (Study 1, 57.6%; Study 2, 55.0%). The majority of residents who felt competent to perform forceps deliveries reported that they would predominately use forceps or both methods of deliveries in their practice (Study 1, 75.8%; Study 2, 64.6%). The majority of residents who reported that they did not feel competent to perform forceps deliveries reported that they would predominately use vacuum deliveries in their practice (Study 1, 86.1%; Study 2, 84.2%). CONCLUSION: Current training results in a substantial portion of residents graduating who do not feel competent to perform forceps deliveries. Perceived competency affected future operative delivery plans.

Is vacuum extraction still known, taught and practiced? A worldwide KAP survey.

OBJECTIVE: Is vacuum extraction-the method of first choice for assisting vaginal delivery in case of prolonged labor-losing ground in the developing world? And if it is, why? The paper tries to answer these disturbing questions, and examine their consequences. METHODS: A rapid Knowledge-Attitude-Practice (KAP) survey was conducted during 2003-2004 on the question of assisted vaginal delivery (AVD) by the use of the vacuum extractor. Public health specialists and obstetricians from 121 developing countries were consulted about their knowledge of the method in their country, its reputation (i.e. their attitude) and its use (practice). RESULTS: Overall 48% of the respondent countries have confirmed knowledge, positive attitude, teaching and countrywide use of the method, while 37% said the method is known and used by only a limited number of specialists who do not teach it, and 15% admitted no knowledge and therefore no use. CONCLUSION: Given the evidence-based international recognition of the benefits of vacuum extraction (if practiced correctly and for appropriate indications), it is unjust to deprive women with prolonged labor (and their fetuses) of a simple intervention that can contribute to reducing life threatening complications. This unsophisticated worldwide survey, while not providing in-depth explanations, calls for rehabilitation of vacuum extraction in countries where it is disappearing and surgical extraction is not yet readily accessible to all women with prolonged labor.

The disappearing art of instrumental delivery: time to reverse the trend.

PURPOSE: This paper focuses attention on declining rates of instrumental (vacuum or forceps) delivery. The decline often means that women must travel further to deliver in hospitals with capacity for cesarean delivery. BACKGROUND: The paper illustrates recent trends in the use of vacuum extraction and forceps in low- and high-income countries. It describes some of the obstacles to the use of instrumental delivery and why the techniques, especially vacuum extraction, should be reintroduced. Over the past two decades, many countries have observed a decline in instrumental delivery rates while cesarean rates have increased. Objections to instrumental delivery are largely due to the potential harm it causes newborns. Some medical schools no longer train their professionals to perform instrumental delivery. Elsewhere, only specialists are permitted to perform the procedures. METHODS AND RESULTS: As this is a policy paper rather than a research report, the methods and results sections are not applicable. CONCLUSIONS: Vacuum extraction can be taught to midlevel practitioners (midwives, nurse practitioners and general physicians), thereby increasing access to emergency obstetric care especially at the periphery. This allows women to give birth closer to home in midlevel facilities when hospitals are not easily accessible or are overcrowded. Where instrumental and cesarean delivery are both available, instrumental delivery could potentially reduce the risks associated with cesarean delivery and reduce the costs of obstetric care.