The anesthetic approach to repeated cesarean sections: A prospective cohort study

Objective

Each repeat cesarean section (CS) potentially adds surgical complexity. The determination of appropriate anesthesia strategy to meet the surgical challenge is of crucial importance for the maternal and neonatal outcome.

Study design

This prospective cohort study was conducted from 1-Jan-2021 to 31-Dec-2021 at a single large obstetric centre of all repeat CS. We compared the characteristics and the appropriateness of the anesthesia techniques for low-order repeat CS (LOR-CS) (1 or 2 previous CS) and high order repat CS (HOR-CS) group (3 or more repeat CS).

Results

During the study period, 1057 parturients met the study entry criteria, with 821 parturients in the LOR-CS group and 236 parturients in the HOR-CS group. The use of spinal anesthesia was more common for HOR-CS 84.3%. Overall surgical time varied between LOR-CS (38 min, 29-49) and HOR-CS (42 min, 31-57) (p = 0.004).The rate of moderate and severe adhesions was relatively high in HOR-CS and the duration of overall surgical time for cases with mild adhesions was 38 min (29-48), for moderate adhesions was 44 min (34.8-56.5), and for severe adhesions was 56 min (44.8-74.3). There was no significant difference in the Estimated Blood Loss (EBL) between LOR-CS and HOR-CS, with values of 653 ± 292 ml vs. 660 ± 285 ml, respectively.

Conclusion

Our data indicate that spinal anesthesia, standard monitoring and regular anesthetic setup are safe and suitable for the majority of HOR-CS, except in cases with high suspicion of placental accreta spectrum.

Incidence and clinical impact of aspiration during cesarean delivery: A multi-center retrospective study

BACKGROUND

The risk of aspiration during general anesthesia for cesarean delivery has long been thought to be increased due to factors such as increased intra-abdominal pressures and delayed gastric emptying in pregnant patients. However, recent studies have reported normal gastric emptying in pregnant patients, suggesting that the risk of aspiration may not be as high as previously believed.

METHODS

We conducted a retrospective study of 48,609 cesarean deliveries, of which 22,690 (46.7%) were performed under general anesthesia at two large tertiary medical centers in Israel. The study aimed to examine the incidence of potentially severe aspiration during cesarean delivery, both under general and neuraxial anesthesia.

RESULTS

Among the patients included in the study, three were admitted to the intensive care unit due to suspected pulmonary aspiration. Two of these cases occurred during induction of general anesthesia for emergency cesarean delivery associated with difficult intubation and one under deep sedation during spinal anesthesia. The incidence of aspiration during cesarean delivery during general anesthesia in our study was 1 in 11,345 patients, and the incidence of aspiration during neuraxial anesthesia was 1 in 25,929 patients. No deaths due to aspiration were reported during the study period.

CONCLUSIONS

Our findings provide another contemporary analysis of aspiration rates in obstetric patients, highlighting increased risks during the management of difficult airways during general anesthesia and deep sedation associated with neuraxial anesthesia.

Anesthetic Approaches and Perioperative Complications of Total Hip Arthroplasty in Gaucher Disease: A Control-Matched Retrospective-Cohort Study

OBJECTIVES

Gaucher disease's (GD) pathophysiology generates anesthetic concerns in total hip joint arthroplasty (THA), and due to its rareness, data on perioperative risks are scarce. This 22-year study at a large reference center addresses anesthetic management and perioperative outcomes in GD.

METHODS

This retrospective-cohort study assessed anesthetic success and safety in 30 THA patients, comparing them with a control-matched group. Data on clinical characteristics, perioperative events, and outcomes were collected. The primary outcome was the success rate of anesthesia induction performance at first attempt. Secondary outcomes were difficult intraoperative course and hemodynamic management, and the development of postoperative complications. The age, sex, weight, body mass index, and primary-to-revision hip arthroplasty ratio were similar in both groups.

RESULTS

There was no significant difference at all-type anesthesia first initiation attempt success. No particular preference by staff anesthetists for general anesthesia or neuraxial procedures was observed. The GD group showed a significantly higher mean of intraoperative packed Red Blood Cell units administered ((0.73 vs. 0.18); (p = 0.038)), higher intraoperative and postoperative platelet transfusion incidence ((5/30 [16.7%] vs. 0/56 [0.00%]; p = 0.004) and (3/30 [10%] vs. 0/56 [0%]; p = 0.040)), and longer mean recovery room length of stay (426 ± 412 vs. 175 ± 140; p = 0.004). Postoperative complications were not significantly different.

Automating medical simulations

OBJECTIVE

This study aims to explore speech as an alternative modality for human activity recognition (HAR) in medical settings. While current HAR technologies rely on video and sensory modalities, they are often unsuitable for the medical environment due to interference from medical personnel, privacy concerns, and environmental limitations. Therefore, we propose an end-to-end, fully automatic objective checklist validation framework that utilizes medical personnel's uttered speech to recognize and document the executed actions in a checklist format.

METHODS

Our framework records, processes, and analyzes medical personnel's speech to extract valuable information about performed actions. This information is then used to fill the corresponding rubrics in the checklist automatically.

RESULTS

Our approach to activity recognition outperformed the online expert examiner, achieving an F1 score of 0.869 on verbal tasks and an ICC score of 0.822 with an offline examiner. Furthermore, the framework successfully identified communication failures and medical errors made by physicians and nurses.

CONCLUSION

Implementing a speech-based framework in medical settings, such as the emergency room and operation room, holds promise for improving care delivery and enabling the development of automated assistive technologies in various medical domains. By leveraging speech as a modality for HAR, we can overcome the limitations of existing technologies and enhance workflow efficiency and patient safety.

Obstetric anaesthesia manpower and service provision issues (introduction and European perspective)

Global health is an important and far-reaching concept in which health and access to surgical and anaesthetic care is crucial. Universal access to anaesthesia is a challenge in many countries. Manpower shortages are an important cause of difficulties and each European country has found different ways of facing a lack of healthcare professionals. In obstetric anaesthesia, the availability of competent anaesthesiologists has been related to the morbidity and mortality outcomes of patients. In this narrative review, authors from different European countries explain how manpower is managed in obstetric anaesthesia in delivery suites and obstetric operating rooms in different settings. To address manpower difficulties and issues, the goals are to achieve a minimum standard of care and at the same time, to promote clinical excellence through training, delegation to younger or less experienced colleagues, direct or at-a-distance supervision, or other means. The experience of sharing knowledge about the way in which manpower and service provision are organised in other healthcare settings is a significant opportunity to develop strategies for advancing tomorrow's obstetric anaesthesia in the world. While taking into account the level of socio-economic development in different countries, the aim is to standardise practice and workload organisation. Co-operative international projects in training and education in obstetric anaesthesia are ways in which better obstetric patient care can be achieved in the future.

Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) in the Multidisciplinary Management of Morbidly Adherent Placenta

BACKGROUND

Morbidly adherent placentation (MAP) increases the risk for obstetric hemorrhage. Cesarean hysterectomy is the prevalent perioperative approach. Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a minimally invasive and relatively simple endovascular procedure to temporarily occlude the aorta and control below diaphragm bleeding in trauma. It has been effectively used to reduce obstetric hemorrhage.

OBJECTIVES

To evaluate whether REBOA during cesarean delivery (CD) in women with morbidly adherent placentation is a safe and effective treatment modality.

METHODS

We introduced REBOA for CD with antepartum diagnosis of MAP in 2019 and compared these patients (RG) to a standard approach group (SAG) treated in our center over the preceding year, as a control. All relevant data were collected from patient electronic files.

RESULTS

Estimated blood loss and transfusion rates were significantly higher in SAG; 54.5% of SAG patients received four RBC units or more vs. one administered in RG. No fresh frozen plasma, cryoprecipitate, or platelets were administered in RG vs. mean 3.63, 6, and 3.62 units, respectively in SAG. Ten SAG patients (90.9%) underwent hysterectomy vs. 3 RG patients (30%). Five SAG patients (45%) required post-surgical intensive care unit (ICU) admission vs. no RG patients. Bladder injury occurred in five SAG cases (45%) vs. 2 RG (20%). One RG patient had a thromboembolic event. Perioperative lactate levels were significantly higher in SAG patients.

CONCLUSIONS

Use of REBOA during CD in women with MAP is safe and effective in preventing massive bleeding, reducing the rate of hysterectomy, and improving patient outcome.

The anesthetic approach to a patient with placenta accreta spectrum

PURPOSE OF REVIEW

Placenta accreta poses significant risk of morbidity and mortality to a laboring patient. Here we review available treatment options, highlight trends in bleeding prevention and diagnosis that have been shown to improve patient outcome, and provide best practice suggestions. We also discuss the decision-making process for choice of anesthesia, as it is not based on a gold-standard paradigm.

RECENT FINDINGS

The use of resuscitative endovascular balloon occlusion of the aorta has been gaining popularity around the world. It has been shown to cause an equivocal reduction in perioperative bleeding in placenta accreta spectrum (PAS), reduce the rate of hysterectomies, and is a safe and relatively easy technique. There are other invasive radiology techniques that have also proven to be beneficial in bleeding prevention: balloon occlusion of hypogastric arteries intraoperatively, internal iliac artery embolization, and intraoperative ligation of the hypogastric or uterine arteries.

SUMMARY

Optimal management of PAS begins with early and definitive diagnosis. A multidisciplinary approach along with preparation of special equipment and the use of a check-list maximize the chance for success. Anesthesia could be done with all types of regional or under general, considering case-by-case factors but most importantly choosing according to the institution's best facility and skill.

Incidence of conversion to general anaesthesia and need for intravenous supplementation in parturients undergoing caesarean section under spinal anaesthesia: A retrospective observational study

BACKGROUND

Conversion from spinal anaesthesia to general anaesthesia (GA) was shown to be associated with more complications. It has been postulated that spinal injection of a low dose of local anaesthetic is a risk factor. We aimed to discover the rate of conversion from spinal anaesthesia to GA in women who received at least 10 mg heavy bupivacaine and opioids and assess its risk factors.

METHODS

All women that underwent spinal anaesthesia for caesarean section from 1 January 2017 to 31 December 2020 were included in this analysis. Spinal anaesthesia was performed according to department protocol using heavy bupivacaine 0.5% 10-13 mg, fentanyl 20 μg, and morphine 0.1 mg. We examined rate of conversion from spinal anaesthesia to GA and rate of need for analgesia/sedation.

RESULTS

There were 1.7% of women that required conversion to GA. Bupivacaine dose (OR 0.54 [95% CI 0.38 to 0.75], p < 0.001), surgery time (OR 1.03 [95% CI 1.02 to 1.04], p < 0.001), emergency caesarean section (OR 1.06 [95% CI 1.16 to 3.76], p = 0.015), and postpartum haemorrhage (OR 5.96 [95% CI 1.09 to 25.18], p = 0.025) were independent predictors of need for conversion to GA. Of the women who had CS under spinal anaesthesia, 4.1% of parturients required intraoperative analgesics/sedatives and 9.1% required anxiolysis.

CONCLUSIONS

A small proportion of women required conversion to GA. This conversion occurred especially with emergency caesarean section and when low spinal bupivacaine doses were used.

A multicenter interdisciplinary survey of practices and opinions regarding oral intake during labor

INTRODUCTION

Different society guidelines diverge regarding oral intake in labor. Our goal was to assess practices and opinions in Israeli labor and delivery units, comparing different disciplines.

METHODS

An anonymous Google Forms survey was sent to anesthesiologists, obstetricians and midwives in all Israeli labor and delivery units.

RESULTS

Responses were collected from all 27 labor and delivery units contacted, with a total of 501 respondents comprising 161 anesthesiologists, 102 obstetricians and 238 midwives. Forty-eight per cent stated there were no institutional guidelines for oral intake. The most common oral intake permitted was light food (60%). Midwives were significantly more likely than anesthesiologists and obstetricians to consider that women who are both low risk for cesarean delivery (P <0.00001) and high risk for cesarean delivery (P=0.001) should eat. Epidural analgesia did not impact recommendations regarding oral intake. The most common reasons for restricting oral intake were obstetric. Sixty-two per cent identified aspiration as the main risk associated with eating during labor, but 19% of midwives compared with 4% of anesthesiologists and obstetricians stated there were no risks (P <0.00001). The annual delivery volume of the unit did not impact staff practices.

CONCLUSIONS

There was a discrepancy between opinions and practices across all disciplines. Permissive practices identified in this survey should be addressed to find the safe middle ground between restrictive and permissive policies for low- and high-risk women.

Post-cesarean ileus: An assessment of incidence, risk factors and outcomes

OBJECTIVE

To estimate the frequency of post cesarean paralytic ileus and to identify associated risk factors and outcomes.

STUDY DESIGN

A retrospective cohort study of woman who underwent cesarean delivery between 2005 and 2019. All parturients who had cesarean delivery were stratified and compared according to whether or not they were diagnosed with a paralytic ileus. Women were excluded if they had an intestinal injury or repair during the cesarean or if they suffered from a post cesarean mechanical bowel obstruction diagnosed during re-laparotomy. Basic demographics, obstetric history, current delivery characteristics, re-suturing indications and outcomes were obtained and analyzed. Univariate analyses were followed by a multivariate analysis (adjusted Odds Ratio (aORs) ; [95% Confidence Interval]).

RESULTS

A total of 23,486 women met the inclusion and exclusion criteria of which 135 (0.6%) were diagnosed with paralytic ileus whilst 23,347 (99.4%) did not and served as the control group. Multivariate analysis revealed that an estimated intra-operative blood loss ≥ 1000 ml was the most significant risk factor for post cesarean paralytic ileus (aOR 2.27 (1.18-4.36)), followed by multifetal gestation (aOR 2.08 (1.24-3.51)), corporeal uterine incision (aOR 1.97 (1.07-3.63)), use of topical hemostatic agents (aOR 1.78 (1.19-2.66)) and increasing maternal age (aOR 1.78 (1.19-2.66)). Regarding maternal outcomes, post cesarean paralytic ileus was associated with higher rates of postpartum hemorrhage (44.4% vs. 13.4%, p < 0.01), transfusion of blood products (23.7% vs. 3.9%, p < 0.01), post-cesarean exploratory laparotomy (4.4% vs. 0.1%, p < 0.01) and prolonged hospital stay (32.6% vs. 5.2%, p < 0.01).

CONCLUSION

In our population, whilst post cesarean paralytic ileus is infrequent, when it occurs it is associated with increased short-term maternal morbidity.

Peripartum anesthetic management of patients with inflammatory bowel disease, a retrospective case-control study

OBJECTIVE

Inflammatory bowel diseases (IBD) are a group of pathologies associated with an increased rate of abortions, premature deliveries, cesarean sections and other morbidity during the peripartum period. The objective of this retrospective study was to investigate the anesthetic management for delivery of women with IBD.

MATERIAL AND METHODS

The records of patients with IBD, who delivered at our Center, were obtained for data which included anesthetic and obstetric management as well as neonatal outcome. Five subgroups were defined based on mode of delivery, presence or absence of epidural in normal vaginal delivery (NVD) and urgency of cesarean section, each of which was compared with control groups of healthy parturients in the same period. Additionally, the rate of cesarean sections and the use of epidural analgesia for NVD were compared with the general obstetric population of our center in the same period.

RESULTS

107 patients with IBD who delivered at our center were studied. The rates of cesarean sections and emergency cesarean sections were significantly higher compared to the general population. However, the rate of instrumental delivery and of epidural analgesia use for NVD were similar. Among those who underwent cesarean sections, no significant differences were found in anesthesia type, surgery duration, number of complications, type of monitoring or postoperative management compared to the control group.

CONCLUSION

Peripartum anesthetic management of patients with IBD does not differ significantly from that of parturients without it. Anesthesiologists can plan their anesthesia in a similar way as they do in healthy parturients.

Chronic pain in parturients with an accidental dural puncture: A case-controlled prospective observational study

BACKGROUND

We set out to examine incidence of chronic headache and back pain in women with PDPH after accidental dural puncture during labor.

METHODS

Chronic headache, backache, and disability were assessed 18-24 months postpartum. Women with PDPH treated with epidural blood patch (PDPH-EBP) were identified and matched with women who had a PDPH without epidural blood patch (PDPH-no EBP), with women with uncomplicated epidural analgesia and with women without epidural analgesia. Our primary outcome was incidence of chronic headache and backache. Secondary outcome was the effect of epidural blood patch on chronic pain development. We used Chi-square or Fisher's exact test to calculate odds ratios.

RESULTS

There was no statistically significant difference in demographic characteristics between groups. In the no epidural group, no women reported chronic headache and 2/116 (1.7%) reported chronic backache. In the uncomplicated epidural group, no women reported chronic headache and 7/116 (6.0%) reported chronic backache. In the PDPH-no EBP group, 9/56 (16.1%) women reported chronic headache and 10/56 (17.9%) reported chronic backache. In the PDPH-EBP group, 12/59 (20.3%) had chronic headache and 14/59 (23.7%) had chronic backache. No women in the no epidural or uncomplicated epidural group reported disability (chronic pain score of 3 or 4). High disability was reported by 8.9% of women in the PDPH-no EBP group and by 8.4% in the PDPH-EBP group.

CONCLUSION

Women with PDPH had a high incidence of chronic headache, back pain, and disability. We did not find a statistically significant difference in chronic pain development between conservatively treated and EBP-treated patients.

A Retrospective Investigation of Neuraxial Anesthesia Rates for Elective Cesarean Delivery Before and During the SARS-CoV-2 Pandemic

BACKGROUND

Our hospital used to perform cesarean delivery under general anesthesia rather than neuraxial anesthesia, mostly because of patient refusal of members of the conservative Bedouin society. According to recommendations implemented by the Israeli Obstetric Anesthesia Society, which were implemented due to the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic, we increased the rate of neuraxial anesthesia among deliveries.

OBJECTIVES

To compare the rates of neuraxial anesthesia in our cesarean population before and during SARS-CoV-2 pandemic.

METHODS

We included consecutive women undergoing an elective cesarean delivery from two time periods: pre-SARS-CoV-2 pandemic (15 February 2019 to 14 April 2019) and during the SARS-CoV-2 pandemic (15 February 2020 to 15 April 2020). We collected demographic data, details about cesarean delivery, and anesthesia complications.

RESULTS

We included 413 parturients undergoing consecutive elective cesarean delivery identified during the study periods: 205 before the SARS-CoV-2 pandemic and 208 during SARS-CoV-2 pandemic. We found a statistically significant difference in neuraxial anesthesia rates between the groups: before the pandemic (92/205, 44.8%) and during (165/208, 79.3%; P < 0.0001).

CONCLUSIONS

We demonstrated that patient and provider education about neuraxial anesthesia can increase its utilization. The addition of a trained obstetric anesthesiologist to the team may have facilitated this transition.

Peripartum anesthetic management of women with SARS-CoV-2 infection in eight medical centers across three European countries: prospective cohort observation study

OBJECTIVE

Several reports of obstetric anesthesia management have been published since the onset of the COVID-19 pandemic. We aimed to collect high-quality broad and detailed data from different university medical centers in several European Society of Anesthesiologist countries.

METHODS

This prospective observational survey was performed in eight medical centers in Spain, Israel and Portugal from 1^st April to 31^st July 2020. Institutional review board approval was received at each participating center. Inclusion criteria: all women with a positive test for COVID-19. Retrieved data included maternal, delivery, anesthetic, postpartum details, and neonatal outcomes. Descriptive data are presented, and outcomes were compared for women with versus without respiratory signs and symptoms.

RESULTS

Women with respiratory symptoms (20/12.1%) had significantly higher mean (standard deviation) temperature (37.2 °C (0.8) versus 36.8 °C (0.6)), were older (34.1 (6.7) years versus 30.5 (6.6)) and had higher body mass index kg m^-2 - (29.5 (7.5) versus 28.2 (5.1)). Women with respiratory symptoms delivered at a significantly earlier gestational age (50% < 37 weeks) with a 65% cesarean delivery rate (versus 22.1% in the group without respiratory symptoms) and 5-fold increased rate of emergency cesarean delivery, 30% performed under general anesthesia. A higher rate of intrauterine fetal death (3%) was observed than expected from the literature (0.2-0.3%) in developed countries. There was no evidence of viral vertical transmission.

CONCLUSION

Well-functioning neuraxial analgesia should be available to manage laboring women with respiratory symptoms, as there is a higher frequency of emergency cesarean delivery. We report a higher rate of undiagnosed parturient and intrauterine fetal death.

Epidural analgesia and vacuum-assisted delivery in primiparous women: maternal and neonatal outcomes

OBJECTIVE

We aimed to evaluate the effect of epidural analgesia (EA) on maternal and neonatal outcomes.

METHODS

We conducted a retrospective cohort database study on primiparous women who underwent a vacuum-assisted delivery (VAD) trial between 2005 and 2019 at a university-affiliated tertiary medical center. We compared women with and without the standard "one protocol" patient-controlled EA. The primary outcome was VAD failure. Secondary outcomes were maternal and neonatal morbidities. We performed univariate analysis, followed by multivariable logistic regression analysis to control for potential confounders. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were calculated.

RESULTS

Overall, 7042 primiparous women attempted VAD during the study period; 6238 (88.3%) and 804 (11.7%) women used and did not use EA, respectively. The VAD failure rate was significantly lower among women with than without EA use (2.5% vs. 4.2%, respectively, p < .01). On multivariable analysis, EA use was found to reduce the VAD failure rate (aOR, 0.05; 95% CI [0.01-0.49], p = .01). Notably, EA use was not associated with an increased rate of any maternal or neonatal adverse outcome (aOR, 1.01; 95% CI [0.8-1.27], p = .95 or aOR, 1.14 95% CI [0.89-1.45], p = .3, respectively).

CONCLUSIONS

EA use in primiparous women is associated with lower rates of VAD failure without an increase in adverse maternal or neonatal outcomes.

Long-term psychological and physical outcomes of women after postdural puncture headache: A retrospective, cohort study

BACKGROUND

Postdural puncture headache after accidental dural puncture during labour may lead to chronic sequalae.

OBJECTIVES

We aimed to measure the incidence of postpartum depression, posttraumatic stress disorder, chronic headache, backache and breastfeeding rates after a postdural puncture headache.

DESIGN

A retrospective, case-matched cohort study.

SETTING

A review of documented cases of dural puncture and matched case controls occurring at Rabin Medical Center and Shamir Medical Center from 01 January 2012 to 30 September 2018.

PATIENTS

The study cohort consisted of women with a documented postdural puncture headache and the controls were women with uneventful labour epidurals in the same 24-h period. Women were interviewed by telephone.

PRIMARY OUTCOMES MEASURE

The primary outcome measure was the incidence of postpartum depression after a postdural puncture headache.

RESULTS

Women with postdural puncture headache (n = 132) and controls (n = 276) had similar demographic data. The incidence of postpartum depression was 67/128 (52.3%) versus 31/276 (11.2%) for controls, P < 0.0001, 95% confidence intervals of the difference 31.5 to 50.2. Posttraumatic stress disorder was more frequent among women with postdural puncture headache, 17/132 (12.8%) versus controls 1/276 (0.4%), P < 0.0001, 95% confidence intervals of the difference 7.6 to 19.5. Women with postdural puncture headache breastfed less, 74/126 (54.5%) versus controls 212/276 (76.8%), P < 0.0001, 95% confidence intervals of the difference 33.1 to 55.2. Current headache and backache were significantly more frequent among women with postdural puncture headache [current headache 42/129 (32.6%) versus controls 42/276 (15.2%) P < 0.00001, 95% confidence intervals 0.085 to 0.266; current backache 58/129 (43.9%) versus controls 58/275 (21%) P < 0.0001, 95% confidence intervals 14.1 to 33.5].

CONCLUSION

We report an increased incidence of postpartum depression, posttraumatic stress disorder, chronic headache and backache and decreased breastfeeding following a postdural puncture headache. Our findings emphasise the need for postpartum follow-up for women with postdural puncture headache.

TRIAL REGISTRY NUMBER

Clinical trial registry number: NCT03550586.

Obstetric anesthesia services in Israel snapshot (OASIS) study: a 72 hour cross-sectional observational study of workforce supply and demand

Background

We planned an observational study to assess obstetric anesthesia services nationwide. We aimed to assess the effect of the anesthesia workload/workforce ratio on quality and safety outcomes of obstetric anesthesia care.

Methods

Observers prospectively collected data from labor units over 72 h (Wednesday, Thursday and Friday). Independent variables were workload (WL) and workforce (WF). WL was assessed by the Obstetric Anesthesia Activity Index (OAAI), which is the estimated time in a 24-h period spent on epidurals and all cesarean deliveries. Workforce (WF) was assessed by the number of anesthesiologists dedicated to the labor ward per week. Dependent variables were the time until anesthesiologist arrival for epidural (quality measure) and the occurrence of general anesthesia for urgent Cesarean section, CS, (safety measure). This census included vaginal deliveries and unscheduled (but not elective) CS.

Results

Data on 575 deliveries are from 12 maternity units only, primarily because a major hospital chain chose not to participate; eight other hospitals lacked institutional review board approval. The epidural response rate was 94.4%; 321 of 340 parturients who requested epidural analgesia (EA) received it. Of the 19 women who requested EA but gave birth without it, 14 (77%) were due to late arrival of the anesthesiologist. Median waiting times for anesthesiologist arrival ranged from 5 to 28 min. The OAAI varied from 4.6 to 25.1 and WF ranged from 0 to 2 per shift. Request rates for EA in hospitals serving predominantly orthodox Jewish communities and in peripheral hospitals were similar to those of the entire sample. More than a fifth (13/62; 21%) of the unscheduled CS received general anesthesia, and of these almost a quarter (3/13; 23%) were attributed to delayed anesthesiologist arrival.

Conclusions

Inadequate WF allocations may impair quality and safety outcomes in obstetric anesthesia services. OAAI is a better predictor of WL than delivery numbers alone, especially concerning WF shortage. To assess the quality and safety of anesthetic services to labor units nationally, observational data on workforce, workload, and clinical outcomes should be collected prospectively in all labor units in Israel.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13584-021-00460-2.

Epidural augmentation for urgent Cesarean Section : a nationwide Israeli survey

Background : Epidural augmentation to convert analgesia to emergency cesarean delivery anesthesia is a common practice. In this survey we examined the common augmentation practices in different hospitals in Israel. We investigated whether practices vary by hospital size and if written protocols for conversion correlate with intra-hospital homogeneity. Methods : A questionnaire containing 39 questions was sent to obstetric anesthesia unit heads and to four additional anesthesiologists (attending and residents) in 24 obstetric anesthesia units nationwide. Answers were received online anonymously using web-based survey site. Results : 99/120 participants responded to the survey. 80% of large hospitals have a detailed epidural augmentation protocol. The existence of a written protocol does not affect intrahospital management variability. Overall, 18 different drug mixtures for epidural augmentation were reported, and the most used drug combination is lidocaine, fentanyl and bicarbonate. In large hospitals, 72% add epinephrine and 96% initiate augmentation before operating room arrival. Most respondents reported a final administered total volume of 15-20 ml. In most hospitals there is no maternal or fetal monitoring during patient transfer from delivery room to the operating room, lasting 3.68 minutes on average, with a relative low risk of significant complication as a result of augmentation. Conclusion : We report variations in common practices, depending on hospital size. We recognized low rate of intra-hospital concordance between centers with or without a written protocol of augmentation. Regarding points for improvement, we would recommend adhering to the accepted institutional protocol.

Open versus endovascular REBOA control of blood loss during cesarean delivery in the placenta accreta spectrum: A single-center retrospective case control study

OBJECTIVE

The aim of this study was to compare two vascular control options for blood loss prevention and hysterectomy during cesarean delivery (CD2): endovascular balloon occlusion of the aorta (REBOA3) and open bilateral common iliac artery occlusion (CIAO4) in women with extensive placenta accreta spectrum (PAS5).

STUDY DESIGN

This was retrospective comparison of cases of PAS using either CIAO (October 2017 through October 2018) or REBOA (November 2018 through November 2019) to prevent pathologic hemorrhage during scheduled CD. Women with confirmed placenta increta/percreta underwent either CD then intraoperative post-delivery, pre-hysterectomy open vascular control of both CIA6 (CIAO group) or pre-operative, ultrasound-guided, fluoroscopy-free REBOA followed by standard CD and balloon inflation after fetal delivery (REBOA group). Intraoperative blood loss, transfusion volumes, surgical time, blood pressure, maternal and neonatal outcomes, hospitalization length and postoperative complications were compared.

RESULTS

The REBOA and CIAO groups included 12 and 16 women, respectively, with similar median age of 35 years and gestational age of 34-35 weeks. All REBOA catheters were successfully placed into aortic zone three under ultrasound guidance. The quantitated median intraoperative blood loss was significantly lower for the REBOA group, (541 [IQR 300-750] mL) compared to the CIAO group (3331 [IQR 1150-4750] mL (P = 0.001). As a result, the total volume of fluid and blood replacement therapy was significantly lower in the REBOA group (P < 0.05). Median surgical time in the REBOA group was less than half as long: 76 [IQR 64-89] minutes compared to 168 [IQR 90-222] minutes in the CIAO group (P = 0.001). None of the women with REBOA required hysterectomy, while 8/16 women in the CIAO group did (P = 0.008). Furthermore, the post-anesthesia recovery and hospital discharge times in the REBOA-group were shorter (P < 0.05). One thromboembolic complication occurred in each group. The only REBOA-associated complication was non-occlusive femoral artery thrombosis, with no surgical management required. No maternal or neonatal deaths occurred in either group.

CONCLUSION

Fluoroscopy-free REBOA for women with PAS is associated with improved vascular control, perioperative blood loss, the need for transfusion and hysterectomy and reduces surgical time when compared to bilateral CIAO.

Management practices for postdural puncture headache in obstetrics: a prospective, international, cohort study

BACKGROUND

Accidental dural puncture is an uncommon complication of epidural analgesia and can cause postdural puncture headache (PDPH). We aimed to describe management practices and outcomes after PDPH treated by epidural blood patch (EBP) or no EBP.

METHODS

Following ethics committee approval, patients who developed PDPH after accidental dural puncture were recruited from participating countries and divided into two groups, those receiving EBP or no EBP. Data registered included patient and procedure characteristics, headache symptoms and intensity, management practices, and complications. Follow-up was at 3 months.

RESULTS

A total of 1001 patients from 24 countries were included, of which 647 (64.6%) received an EBP and 354 (35.4%) did not receive an EBP (no-EBP). Higher initial headache intensity was associated with greater use of EBP, odds ratio 1.29 (95% confidence interval 1.19-1.41) per pain intensity unit increase. Headache intensity declined sharply at 4 h after EBP and 127 (19.3%) patients received a second EBP. On average, no or mild headache (numeric rating score≤3) was observed 7 days after diagnosis. Intracranial bleeding was diagnosed in three patients (0.46%), and backache, headache, and analgesic use were more common at 3 months in the EBP group.

CONCLUSIONS

Management practices vary between countries, but EBP was more often used in patients with greater initial headache intensity. EBP reduced headache intensity quickly, but about 20% of patients needed a second EBP. After 7 days, most patients had no or mild headache. Backache, headache, and analgesic use were more common at 3 months in patients receiving an EBP.