Open Access

Professional ethics, VBAC and COVID‑19 pandemic: A challenge to be resolved (Review)

  • Authors:
    • Alexandru Carauleanu
    • Ingrid Andrada Tanasa
    • Dragos Nemescu
    • Demetra Socolov
  • View Affiliations

  • Published online on: July 6, 2021
  • Article Number: 956
  • Copyright: © Carauleanu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Since the declaration of the severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) pandemic by the World Health Organization (WHO) on March 11, 2020, the entire healthcare system is trying to adapt its capabilities to a challenge that induces a deep and continuous metamorphosis of people, strategies and policies. The right to proper health care is universal, and the patient's autonomy must be respected even in ambiguous times. In the context of increased Cesarean section (CS) rates, the women's desire to achieve vaginal birth after Cesarean section (VBAC) is becoming more articulate, and healthcare professionals need to adapt their approaches regarding the mode of delivery. But how to balance this aspect with respect to the paucity of resources during the pandemic, without infringing the fundamental rights and ethical principles is a demanding question. This article describes a clinical ethical decision‑making framework for recommending trial of labor after Cesarean section (TOLAC), and individualized management of VBAC cases tailored upon the new circumstances dictated by the SARS‑CoV‑2 pandemic.

1. Introduction

The SARS-CoV-2 pandemic, and the global response to it, has induced extraordinary circumstances that has led to profound adaptive changes in various domains, especially in the healthcare system. The field of obstetrics is no exception, and numerous recommendations have determined fundamental shifts regarding system protocols, attitudes and responses. But any change of strategy needs time for the documentation of long-term effects, especially for outlining the adverse ones related to specific cases.

Professional ethics provides essential guidance to obstetricians for offering, recommending, and performing Cesarean section (CS) or vaginal birth after Cesarean section (VBAC), at the same time trying to emphasize the ethical dilemmas and moral implications of different obstetrical actions, especially in the grey area created by this pandemic.

The VBAC rate has shown an increasing trend, mainly in developed countries, so that the statistics for 2018 indicate a rate of 13.3% in the USA (1). Worldwide, there is a heterogenous distribution of VBAC rates, ranging from 20 to 55% in Europe (2,3). However, a reduction in these rates is expected due to the coronavirus disease-19 (COVID-19) pandemic.

In contrast, the rates for CS continue to rise, exceeding the WHO recommendation of an ideal CS rate between 10-15%, so that some countries have reached a 50% or more CS rate, especially in poor or developing countries (4,5). This phenomenon raises concerns about the health implications, work ethics, inequality, discrimination, and healthcare costs.

In order to reduce the important variation in the clinical management of pregnant women who desire to achieve VBAC during the period of the SARS-CoV-2 pandemic, this article describes a clinical ethical decision-making framework for recommending trial of labor after Cesarean section (TOLAC), and individualized management of VBAC cases.

The proposed clinical ethical framework emphasizes the importance of a beneficence principle by identifying clinical factors that may increase or decrease the risk of significant maternal and fetal harm. Moreover, this article illustrates the implementation of this framework into the decision-making process concerning TOLAC, aiming to improve the quality of obstetrical care.

2. Ethical concepts and dilemmas

When deciding the mode of delivery, it is important for the obstetrician to consider clinically relevant ethical principles and their application to patient care. The ethical principles of beneficence and non-maleficence, which require the clinician to seek the best balance of clinical good over clinical harm in the management of the patient, should be fundamentals for every medical decision.

In the case of Cesarean delivery as a therapeutic measure, maternal nonmaleficence poses limits to maternal and fetal beneficence. The pregnant woman who undergoes Cesarean delivery is submitting herself to an invasive abdominal surgery that can impose significant harm.

The short-term risks of CS include postoperative pain, injury to adjacent organs, wound infection, longer recovery time, and rarely death. The long-term risks associated with CS include skin and uterine scarring (which in turn would increase the risk of abnormal placentation), elective repeat Cesarean delivery (ERCD) for future pregnancies, and postpartum depression (6).

As for fetal outcome, unindicated Cesarean delivery before term is associated with an increased risk of transient tachypnea, respiratory distress syndrome, and persistent pulmonary hypertension (7).

Another important ethical principle for the obstetricians to consider is respect for a patient's autonomy, which requires the physician to empower the pregnant woman with the clinical information that she needs in order to make informed decisions regarding the benefits and risks of different modes of delivery.

In obstetrical practice, respecting the pregnant patient's autonomy implies the recognition of her decisional rights about the management of her pregnancy and birth. Therefore, the woman's informed consent for Cesarean delivery or VBAC should be obtained after proper counseling.

Under the new guidelines, the American College of Obstetricians and Gynecologists (ACOG) reiterates its commitment to patient autonomy, and reaffirms a woman's right to choose VBAC (8). Yet, in practice, liability issues have a negative impact over the physicians and facilities compliance with ACOG recommendations.

Moreover, the SARS-CoV-2 pandemic has brought to our attention the moral distress concept, which was initially mentioned in nursing ethics, and expanded to all health professions. This concept is illustrated by situations in which a healthcare professional believes he or she knows the morally right thing to do, but is unable to do so (9,10). Among the sources of moral distress, institutional policies, and decisional hierarchies were cited (11), and it becomes obvious that health policies and controversial statements put additional stress on this matter.

As for ethical dilemmas, their main substrate is the battle between the professional responsibility, and circumstances induced by the new pandemic.

Do obstetricians have the professional responsibility to treat a COVID-19-positive patient regardless of the personal risk of infection? It is true that protective equipment, when used correctly, prevents exposure to the virus, and limits the infection. On the other hand, numerous healthcare facilities encountered a scarcity of protective resources, especially at the beginning of the pandemic (12), and high-risk categories of healthcare providers (those over 60 years of age, with comorbidities, pregnant women) were vulnerable while caring for infected patients. A solution for this is ensuring that every hospital has proper protective gear, and that the personnel is instructed regarding the specific COVID-19 protocols.

How to approach an VBAC case positive for COVID-19 when there is a shortage of trained personnel and resources is an urgent issue. Candidates that are appropriate for TOLAC, but have been confirmed positive for the new coronavirus, are facing limitations when choosing a mode of delivery. The paucity of information regarding the vertical transmission of the virus, the need for continuous monitoring during labor, and in case of adverse obstetrical events such as uterine rupture, emergency CS, are factors that need to be considered when recommending TOLAC. However, the principle of autonomy must be respected, and if appropriate, a proper counselling, followed by an informed decision can solve this dilemma.

3. The beneficence-based approach to recommending mode of delivery

Obstetricians should employ a beneficence-based approach when recommending a specific mode of delivery, and should consider the factors associated with significant maternal and fetal harm.

The first factor to be considered is the availability of TOLAC at the planned healthcare unit. ACOG recommends conducting TOLAC at facilities that are able to perform an emergency CS when it is required (13), but in some cases women may choose to pursue TOLAC even at hospitals with limited resources. This sensitive option may further lead to liability issues, but it must not be considered a reason for limitation of access to healthcare. A solution to this situation may be discussing birthing options early in pregnancy, and transfer of care to a better prepared healthcare facility, while developing internal hospital protocols that are aligned with the international and local guidelines and regulations. Anyway, we emphasize that TOLAC should never be attempted at home.

The guidelines emitted by ACOG, the Society for Maternal-Fetal Medicine (SMFM), and others include general recommendations (available at and regarding prevention, diagnosis, and case management of COVID-19-positive patients, as well as suggestions for modifying traditional protocols for prenatal visits. These modifications include telehealth, reducing the number of in-person visits, timing of visits, restricting visitors during visits and tests, timing of indicated obstetric ultrasound examinations or other prenatal tests. However, after lockdown, the stillbirth rate has apparently increased, an aspect which may have been caused by disruptions in prenatal care, and by a higher number of home births (14-17).

The SARS-CoV-2 pandemic has led to a separation of hospitals into two categories: Those who can receive confirmed cases, and those who act as a tampon until proper transfer of the patients. This segregation may further limit the women's access to immediate life-saving procedures due to personnel and equipment shortage (18).

The second factor to be considered is the probability of achieving a VBAC. The success rates are highly variable among countries, healthcare facilities and obstetricians, while patient characteristics and non-medical factors may influence the likelihood of successful TOLAC (19). For example, in the USA, the success rate of TOLAC was estimated in 2013 at 70.4% for women who had one previous Cesarean delivery, and at 51.4% for those with two or more prior Cesarean deliveries; thus, the statistics are encouraging (20).

Moreover, a previous vaginal delivery was found to be associated with increased likelihood of successful TOLAC (21), while the most important factor that precluded VBAC was a prior Cesarean delivery for a recurring indication, such as failure to progress. Induction of labor significantly reduced the odds of VBAC (13).

Many patients and physicians now have access to different calculators that offer an individualized estimation regarding the likelihood of a successful TOLAC. These results, combined with a proper counseling session that includes the risks and benefits associated with a TOLAC, specific circumstances of the prior CS, anticipated weight of the fetus, desire for future childbearing, and other individual level factors that may influence the chance of success, are powerful beneficence-based approaches that can be included into the current practice. However, the main problem with the calculators is the validation into different situations (e.g., multiple gestations).

The most utilized calculator is the Maternal-Fetal Medicine Units Network (MFMU) that predicts the chance of VBAC based on data available at the first prenatal visit: Maternal age, height, weight, pre-pregnancy body mass index (BMI), race, ethnicity, prior vaginal delivery, prior VBAC, and prior Cesarean for arrest of dilation or descent (22). This calculator has been validated in women with one or two prior Cesarean deliveries (23), and its overall predictive capability was found to be good, with an area under the curve (AUC) of 0.75 (95% CI 0.74-0.77) (24).

The MFMU Network website also provides a VBAC calculator that predicts the chance of VBAC based on information available at the time of admission for delivery (25): Height and weight, BMI at delivery, gestational age, cervical examination, preeclampsia/gestational hypertension, and labor induction. The overall AUC for this model was 0.77 (95% CI 0.76-0.78) (26). It was externally validated in independent cohorts of women with one prior Cesarean delivery (27).

For preterm delivery, between 26+0 and 36+6 weeks of gestation, a recent model estimated the VBAC likelihood at 76.6%, which was positively influenced by diabetes, greater cervical dilation, history of vaginal birth, and history of VBAC, while induction of labor, recurring indication for prior Cesarean, and hypertensive disease had a negative influence over the VBAC rate. The overall predictive capability of the model was good with an AUC of 0.80 (95% CI 0.77-0.83) (28).

Considering these instruments, VBAC should be recommended when there are weak or no beneficence-based obligations to the pregnant woman and to the fetus, while ERCD would be recommended when these aspects are pertinent, and the grey area defined by intermediate beneficence-based obligations should impose a careful and multidisciplinary approach of the case before strongly recommending a mode of delivery.

The third factor that must be considered is the woman's preference. A physician must respect the patient's desire regarding the route of delivery, and must take into consideration the values and opinions expressed by the pregnant women.

The conflictual existing data with respect to vertical transmission of COVID-19 (29-31), viral complications (32,33), and pregnancy outcomes for infected patients (34,35) may reduce the women's desire to achieve VBAC, but the obstetrician's role must be a reassuring one, and must guide the patients through the avalanche of new information, so that the patient can consciously choose a mode of delivery.

4. Fine-tuning the beneficence-based analysis

As part of the ethical decision-making framework for recommending the mode of delivery, the obstetrician should fine-tune his or her beneficence-based analysis by identifying the most suitable TOLAC candidates.

An ideal candidate for TOLAC will have a high likelihood of VBAC, and a very low likelihood of intrapartum major complications such as uterine rupture (Table I).

Table I

Pregnant patient characteristics that are indicative or not for TOLAC.

Table I

Pregnant patient characteristics that are indicative or not for TOLAC.

Suitable TOLAC indicationsPoor TOLAC indication
One prior low transverse uterine incisionStandard contraindications to labor or vaginal birth
Prior low vertical uterine incisionPrior transfundal uterine incision
Two prior low transverse uterine incisionsPrior uterine rupture
Three prior low transverse uterine incisions 
Unknown type of uterine incision 
Pregnancy more than 40 weeks of gestation 
Twin gestation 

[i] TOLAC, trial of labor after Cesarean.

TOLAC seems to be a reasonable option for women who have undergone only one previous CS via a low transverse hysterotomy (36), with an estimated VBAC rate between 60 and 80% (37), and a uterine rupture rate of 0.4-0.7% (19).

The obstetrician must determine the extent into the contractile portion of the uterus of a prior low vertical uterine incision, when considering TOLAC. If the previous hysterotomy did not reach the contractile portion of the uterus, then the patient must be informed about the risks associated with TOLAC, including uterine rupture, which in this case is approximated at 1-2% (37).

Multiple Cesarean sections performed via low transverse hysterotomy may lead to an increased risk of uterine rupture (38), but these women may be candidates for TOLAC after individualized counseling that takes into consideration other factors that predict the likelihood of successful VBAC (13). The VBAC rates appear to be similar among patients who have had two or three prior Cesarean deliveries (VBAC-2 vs. VBAC-3: 71.1 vs. 75.5%) (38,39).

In the case of an unknown type of uterine incision, ACOG supports the assumption that most women with a prior CS have a low transverse hysterotomy, and therefore TOLAC should be a reasonable option for them (13). Two studies concluded that women who have undergone an unknown type of prior incision had a similar rate of uterine rupture as those with a known prior low transverse uterine incision (40,41).

ACOG does not consider a contraindication for TOLAC at a gestational age beyond 40 weeks of gestation (13), although several studies outlined a lower VBAC rate for this type of candidates (42,43). A secondary analysis compared the obstetric outcomes between TOLAC candidates undergoing induction of labor and those undergoing expectant management ≥39 weeks of gestation, and found that labor induction at 39 weeks was associated with a higher VBAC rate than expectant management (74 vs. 61%), and that the risk of uterine rupture was also higher (1.4 vs. 0.5%) (44).

According to ACOG, twin gestation and suspected fetal macrosomia (estimated fetal weight ≥4,000 g) are not contraindications for TOLAC, as long as there are no other factors that preclude vaginal delivery (13). The past birth weight(s), outcomes, and the predicted birth weight in the current pregnancy are key elements when recommending TOLAC.

When the physician estimates a fetal weight of more that 4,000 g, and the woman has had no previous vaginal delivery, the expected VBAC rate is lower, being estimated at less than 50% in some studies (45,46). Also, the adverse obstetrical outcomes, such as uterine rupture are more frequently encountered in these cases (47,48). Thus, a previous vaginal delivery is an important factor to be considered when recommending TOLAC for women with macrosomic fetuses.

Maternal obesity (BMI ≥30 kg/m2) should not be considered a contraindication for TOLAC when other factors positively indicate a trial of labor and vaginal delivery. However, some studies have concluded that a successful TOLAC is less likely to be achieved by obese patients (24,49-51).

In a secondary analysis from a prospective observational study, the authors identified a rate of failed trial of labor of 15% in normal-weight women, 30% in obese women (BMI 30-39.9 kg/m2), and 39% in severely obese women (BMI ≥40 kg/m2), with a uterine dehiscence/rupture rate of 0.9, 1.4, and 2.1% for the three mentioned groups (52). Thus, a careful monitoring of TOLAC in obese patients is recommended.

ACOG recommends ERCD for women with prior trans-fundal uterine incision, prior uterine rupture, and for women with standard contraindications to labor or vaginal birth (eg, placenta previa) (13).

In a literature review by Sabol et al, the frequency of uterine rupture for classical or T-shaped incisions ranged from 4 to 9% (37), which exceeds the estimated rates for low vertical incisions and low transverse uterine incisions Moreover, in another study the uterine rupture rate for women with prior classical, inverted T or J incision was 1.9% (40).

As for trans-myometrial incisions, the uterine dehiscence/rupture rate was estimated at 14%, which is unacceptably high (53).

Women with a previous uterine rupture confined to the lower uterine segment are reported to have a 6% recurrence rate of the uterine rupture during labor, while for those in whom the prior uterine rupture involved the contractile segment, the recurrence rate was estimated at 32% (54).

If an adverse obstetric outcome such as uterine rupture or non-reassuring fetal rate occurs during TOLAC, then the obstetrician must immediately change the case management strategy after a proper evaluation of the risks.

With the emergence of new vaccines and vaccination campaigns, a reduction in the pandemic duration can be expected, although the long-term protection offered by vaccines against SARS-CoV-2 and its new strains is still under evaluation (55). Thus, all healthcare facilities must adapt to this pleiomorphic epidemiologic context.

The proposed ethical framework requires the organizational capacity to respond to obstetric emergencies, so that TOLAC must be offered only in fully equipped and prepared healthcare facilities.

5. Conclusions

The proposed clinical ethical framework outlines a multifactorial approach to fine-tuning the decision-making process for women who desire to achieve VBAC during the COVID-19 pandemic.

This multifactorial approach stresses the importance of the organizational resources and ethical conduits that in addition to the obstetrician's training, experience, and skill level, have a positive effect on the VBAC experience.

Finally, adopting this clinical ethical framework in practice will enhance the autonomy of pregnant women by providing comprehensive counseling about the COVID-19 effects in pregnancy, clinical decisions, and individualized case management.


Not applicable.

Availability of data and materials

All information is documented by relevant resources.

Authors' contributions

AC and IAT designed the review; AC drafted the initial manuscript. DN and DS carried out the literature search, supported by AC and IAT, who retrieved the evidence and selected the papers. AC, IAT and DS extracted the data; IAT, AC, DN, and DS participated in writing the final version of the manuscript. IAT and AC were assigned to perform a final check of the manuscript. All authors read and approved the final manuscript.

Ethics approval and consent to participate

Not applicable.

Patient consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.



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Carauleanu A, Tanasa IA, Nemescu D and Socolov D: Professional ethics, VBAC and COVID‑19 pandemic: A challenge to be resolved (Review). Exp Ther Med 22: 956, 2021
Carauleanu, A., Tanasa, I.A., Nemescu, D., & Socolov, D. (2021). Professional ethics, VBAC and COVID‑19 pandemic: A challenge to be resolved (Review). Experimental and Therapeutic Medicine, 22, 956.
Carauleanu, A., Tanasa, I. A., Nemescu, D., Socolov, D."Professional ethics, VBAC and COVID‑19 pandemic: A challenge to be resolved (Review)". Experimental and Therapeutic Medicine 22.3 (2021): 956.
Carauleanu, A., Tanasa, I. A., Nemescu, D., Socolov, D."Professional ethics, VBAC and COVID‑19 pandemic: A challenge to be resolved (Review)". Experimental and Therapeutic Medicine 22, no. 3 (2021): 956.