BACKGROUND: Peripartum asphyxia is one of the main causes of neonatal morbidity and mortality. In moderate and severe cases of asphyxia, a condition called hypoxic-ischemic encephalopathy (HIE) and associated permanent neurological morbidities may follow. Due to the multifactorial etiology of asphyxia, it may be difficult prevent, but in term neonates, therapeutic cooling can be used to prevent or reduce permanent brain damage. The aim of this study was to assess the significance of different antenatal and delivery related risk factors for moderate and severe HIE and the need for therapeutic hypothermia.
METHODS: We conducted a retrospective matched case-control study in Helsinki University area hospitals during 2013-2017. Newborn singletons with moderate or severe HIE and the need for therapeutic hypothermia were included. They were identified from the hospital database using ICD-codes P91.00, P91.01 and P91.02. For every newborn with the need for therapeutic hypothermia the consecutive term singleton newborn matched by gender, fetal presentation, delivery hospital, and the mode of delivery was selected as a control. Odds ratios (OR) between obstetric and delivery risk factors and the development of HIE were calculated.
RESULTS: Eighty-eight cases with matched controls met the inclusion criteria during the study period. Maternal and infant characteristics among cases and controls were similar, but smoking was more common among cases (aOR 1.46, CI 1.14-1.64, p = 0.003). The incidence of preeclampsia, diabetes and intrauterine growth restriction in groups was equal. Induction of labour (aOR 3.08, CI 1.18-8.05, p = 0.02) and obstetric emergencies (aOR 3.51, CI 1.28-9.60, p = 0.015) were more common in the case group. No difference was detected in the duration of the second stage of labour or the delivery analgesia.
CONCLUSIONS: Smoking, induction of labour and any obstetric emergency, especially shoulder dystocia, increase the risk for HIE and need for therapeutic hypothermia. The decisions upon induction of labour need to be carefully weighed, since maternal smoking and obstetric emergencies can hardly be controlled by the clinician.

BACKGROUND: Shoulder dystocia is a severe obstetric emergency that can cause substantial neonatal and maternal complications. This study aims to assess the performed obstetric maneuvers and their frequency, success, and association with maternal and neonatal complication rates.
METHODS: The study population was collected among all deliveries in the Hospital District of Helsinki and Uusimaa between 2006 and 2015 (n = 181 352) by searching for ICD-10 codes for shoulder dystocia, brachial plexus injury and clavicle fracture. Shoulder dystocia cases (n = 537) were identified by reviewing the medical records. Shoulder dystocia cases treated with one or two maneuvers were compared with those treated with at least three. Medical records of a matched control group constituting of 566 parturients without any of the forementioned ICD-10 codes were also scrutinized.
RESULTS: Using the four most common obstetric maneuvers (McRoberts maneuver, suprapubic pressure, rotational maneuvers, the delivery of the posterior arm) significantly increased during the study period with individual success rates of 61.0%, 71.9%, 68.1% and 84.8%, respectively. Concurrently, the rate of brachial plexus injury and combined neonatal morbidity significantly declined from 50% to 24.2% (p = 0.02) and from 91.4% to 48.5% (p < 0.001). Approximately 75% of shoulder dystocia cases treated with maneuvers were resolved by the McRoberts maneuver and/or suprapubic pressure, but each of the four most performed maneuvers significantly increased the cumulative success rate individually and statistically (p < 0.001). The rates of brachial plexus injury and combined neonatal morbidity were at their highest (52.9% and 97.8%) when none of the maneuvers were performed and at their lowest when two maneuvers were performed (43.0% and 65.4%). The increasing number (≥3) of maneuvers did not affect the combined maternal or neonatal morbidity or brachial plexus injury but increased the risk for third- or fourth-degree lacerations (odds ratio 2.91, 95% confidence interval 1.17 to 7.24).
CONCLUSIONS: The increased use of obstetric maneuvers during the study period was associated with decreasing rates of neonatal complications; conversely, the lack of obstetric maneuvers was associated with the highest rate of neonatal complications. These emphasize the importance of education, maneuver training and urgently performing shoulder dystocia maneuvers according to the international protocol guidelines.

Carotid artery dissection is an infrequent cause of neonatal-perinatal stroke. Its rarity may be due to underdiagnosis or lack of awareness. We report a case of a full-term, large-for-gestational-age (LGA) male infant delivered at 39 weeks gestation. Pertinent prenatal and perinatal history include gestational diabetes, preeclampsia, and the use of forceps to assist in delivery due to shoulder dystocia. The infant presented with apnea and cyanosis while rooming which prompted admission to the neonatal intensive care unit (NICU). Initial sonographic investigation revealed an infarct, subsequently confirmed as a massive left-sided infarct by magnetic resonance imaging (MRI) of the brain. Further, computerized tomography (CT) angiography confirmed a dissection in the right common and internal carotid arteries. The child was treated with antiepileptic and antithrombotic medications. He is now undergoing regular neurodevelopmental monitoring and rehabilitation. As per our sources, this case is the first to report a contralateral significant perinatal stroke due to carotid artery dissection. It underscores the importance of recognizing subtle signs of neonatal encephalopathy that may be due to perinatal stroke, of which carotid artery dissection is an uncommon etiology. Assisted delivery techniques such as the use of forceps may be risk factors.

Fear of childbirth can develop due to the concerns or adverse maternal or foetal outcomes experienced in a previous pregnancy. The aim of this study was to examine the main risk factors associated with the development of fear of childbirth during subsequent pregnancies and deliveries.
In this case-control study, data from the National Medical Birth Register were used to evaluate the events in previous pregnancies that were potential risk factors for fear of childbirth in subsequent pregnancies. The first and second pregnancies of women registered during our study period (2004-2018) were included. The exposure variable was delivery mode, obstetric challenge or adverse neonatal outcomes during the first pregnancy. The outcome was the development of FOC during the second pregnancy. Adjusted odds ratios with 95% CIs were used for comparison.
A total of 13 064 pregnancies were included in the case group and 195 351 in the control group. Previous emergency caesarean section was the strongest risk factor for the development of FOC in the second pregnancy (adjusted odds ratio 5.27, CIs 4.83-5.75). In addition, unplanned CS (adjusted odds ratio 3.93, CIs 3.77-4.10) and vacuum delivery (adjusted odds ratio 1.69, CIs 1.61-1.77) also increased the odds of fear of childbirth. Of the obstetric complications, third- or fourth-degree tear of the perineum was the strongest risk factor (adjusted odds ratio 2.99, CIs 2.69-3.31), followed by shoulder dystocia (adjusted odds ratio 2.82, CIs 2.16-3.62). Neonatal mortality also increased the odds for the development of FOC (adjusted odds ratio 2.17, CIs 1.77-2.64).
The main risk factors for the development of fear of childbirth in the second pregnancy were previous fear of childbirth, unplanned CS, vacuum delivery, perineal tear or shoulder dystocia. The results of this study can be used in a clinical setting to improve the prevention of fear of childbirth.

BACKGROUND: Various manoeuvres such as McRoberts position, suprapubic pressure, rotational methods, posterior arm extraction and all-four position (HELPERR) have been proposed for relieving shoulder dystocia with variable success. Posterior axillary sling method using a rubber catheter was proposed in 2009 but has not been widely used. We modified this method using ribbon gauzes and a long right-angle forceps and report a successful case.
METHODS: A 44 years old parity one Chinese woman with a history of a caesarean delivery and poorly controlled type 2 diabetes mellitus was admitted to the Accident and Emergency Department for advanced stage of labour at term. Upon arrival, intrauterine fetal demise was diagnosed with severe asynclitism causing obstruction at the perineum. Episiotomy resulted in birth of the fetal head. The fetal posterior right shoulder, however, remained very high up in the pelvis and HELPERR methods failed to extract the shoulders. We then tied two long ribbon gauzes together, and guided its knot to the anterior aspect of the posterior axilla. By using a long right-angle forceps (24 cm long) to grasp the knot on the posterior side of the axilla and pulling it through, a sling was formed. Traction was then applied through the sling to simultaneously pull and rotate the posterior shoulder. A stillbirth of 3488 g was finally extracted.
CONCLUSIONS: We modified the sling method by using two ribbon gauzes, tied together and a right-angle forceps with several advantages. Compared to a rubber catheter, ribbon gauze with a knot can be easily held between the fingers for easy guidance past the fetal axilla. It is also thin, non-elastic and stiff enough to ensure a good grip for traction. The long and slim design of the right-angle forceps makes it easy to pass through a narrow space and reach the axilla high up in the pelvis. We emphasize simultaneous traction and rotation, so that the shoulders are delivered through the wider oblique pelvic outlet dimension.

BACKGROUND: Shoulder dystocia is an unpredictable and potentially catastrophic complication of vertex vaginal delivery. Posterior axilla sling traction (PAST) has recently been proposed as a method to resolve severe shoulder dystocia when commonly used techniques have failed.
METHODS: A 33-year-old woman (gravida 5, para 0) at 35 weeks, 1 day gestation underwent induction of labor for poorly controlled type 2 diabetes mellitus. Delivery of the large-for-gestational-age infant (4,060 g) was complicated by intractable shoulder dystocia, relieved at 3 minutes with PAST, resulting in a deep, circumferential laceration of the fetal posterior shoulder and contralateral phrenic nerve palsy.
CONCLUSIONS: PAST provides a potentially lifesaving option during intractable shoulder dystocia. Simulation or education about the technique facilitates its use when standard maneuvers fail. It is important to disseminate information about potential complications associated with these novel maneuvers.

Our report covers two cases of severe hypoxic-ischemic encephalopathy in newborns whose birth was complicated by shoulder dystocia. In both cases, there were inconsistencies observed among cardiotocographic traces, baby\'s clinical conditions at birth, and umbilical cord blood gases. Namely, normal cardiotocographic monitoring and cord pH > 7, in spite of the fact that the newborns were severely depressed at birth and their blood gases evaluated within 1 h from birth showed a severe metabolic acidosis. Moreover, one of the two newborns displayed moderately low hemoglobin levels. Metabolic and infectious causes were ruled out. Both newborns developed severe hypoxic-ischemic encephalopathy and received therapeutic hypothermia for 72 h. Both survived, one with a severe dystonic cerebral palsy whereas the other developed only a mild developmental delay in language. Cardiac asystole theory could explain these two cases, reinforcing the need for specific resuscitation guidelines for infants experiencing a birth complicated by shoulder dystocia.

Objective  The main purpose of this article is to describe the technique and mechanism of action of a novel intervention for the relief of shoulder dystocia we are labeling Carit maneuver. Methods  We report a cohort study of eight cases of shoulder dystocia not relieved by the combination of McRobert\'s maneuver and suprapubic pressure treated with the Carit maneuver. This intervention involves the use of the fetal head and neck as the grasping point of the fetus to exert a ventral rotation of the fetal trunk, reduce the bi-acromial diameter, and deliver the posterior shoulder by passive displacement. In all these cases, the direction of the original head restitution, direction of exerted rotation, and side and location of delivery of the first shoulder were recorded. Maternal and neonatal outcomes were reviewed and reported. Results  In all cases, the Carit rotational maneuver resulted in the delivery of the posterior shoulder in the transverse (4), oblique anterior (2), or direct anterior (2) diameters. No instances of neonatal depression or fetal acidemia were noted in this cohort. Conclusion  The Carit maneuver is an original and successful intervention in the management of shoulder dystocia unresponsive to McRobert\'s maneuver and suprapubic pressure.

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UNASSIGNED: Shoulder dystocia complicates up to 3% of vaginal births. The clinical ability to predict shoulder dystocia is limited, especially among diabetic women. We sought to evaluate if fetal growth trajectory measured from ultrasonographic (US) estimated fetal weight (EFW) percentiles was associated with increased risk for shoulder dystocia.
UNASSIGNED: We performed a case-control study among women diagnosed with diabetes at a single institution between 2005 and 2015. Two diabetic controls without shoulder dystocia based on the year of delivery were included for each woman with a shoulder dystocia. Women with a single EFW measurement, delivery by cesarean, or multiple gestation were excluded. Demographic and US data were collected. Fetal growth trajectory was calculated from EFW measurements in the last two growth ultrasound scans performed closest to delivery. We compared the odds of EFW percentile change per week above specific thresholds for shoulder dystocia cases versus controls. The following cutoffs were generated: a mean percentile per week increase of > 0%, ≥ 0.5%, ≥ 1%, and ≥ 2%. Among those with EFW percentile changes that decreased (<0%), we evaluated whether odds of an abdominal circumference (AC) > 75th percentile or an EFW > 75th percentile was higher for women with shoulder dystocia. The primary exposure was increased growth trajectory. Secondary outcomes included analysis of the following adverse neonatal outcomes: (i) low 5 minutes Apgar score, (ii) rates of NICU admission, and (iii) neonatal demise.
UNASSIGNED: Of 3954 diabetics, we identified 68 cases with shoulder dystocia and 136 controls who did not have shoulder dystocia. Women who experienced a shoulder dystocia were more likely to be of advanced maternal age as compared to those without a shoulder dystocia (41.9% versus 23.5, p = .01); all other demographic characteristics were similar between groups. At growth trajectory cutoffs of > 0%, ≥ 0.5%, ≥ 1%, and ≥ 2% per week, odds ratios were increased among shoulder dystocia cases versus controls (OR = 1.8, 95% confidence interval (CI) = 0.9-3.3; OR = 1.6, 95% CI = 0.8-3.2; OR = 1.7, 95% CI = 0.7-3.9; and OR = 1.8, 95% CI = 0.6-5.3; respectively); however, this was not statistically significant. For women with fetal growth trajectories that decreased (< 0%), shoulder dystocia was associated with increased odds of fetal AC > 75th percentile and overall growth > 75th percentile (OR = 3.3, 95% CI = 1.5-7.1, OR = 4.8, 95% CI = 1.3-17.4, respectively). There was no difference in neonatal outcomes between shoulder dystocia cases and controls.
UNASSIGNED: Future research is required to determine if fetal growth velocity proves to be a useful tool in identifying women at increased risk for shoulder dystocia. Larger studies are required for precise estimates of risk, and associated neonatal outcomes.