Apply medical ethics, informed consent and capacity in obstetric and gynaecological practice

In one line

Clinical ethics in obstetrics and gynaecology is the disciplined balancing of four obligations — respect for autonomy, beneficence, non-maleficence and justice — against the law of the place you practise; in South Africa that means a competent adult's informed refusal is binding even when it risks the fetus (which has no separate legal personhood antenatally), valid consent is the reasonable-patient material-risk standard of Castell and Montgomery rather than whatever doctors customarily disclose, and the defensible plan is the one you can justify on a principle and a statute, not on a personal moral verdict.

This chapter assumes the day-to-day mechanics of taking consent and works one level up — the dilemmas where principles and the law pull against each other. The groundwork sits in the Intermediate chapter on informed consent; revise that for the elements and the consent form, and spend the effort here on capacity assessment, refusal, the maternal–fetal interface and conscientious objection.

Mechanism & pathophysiology

Ethics has no histology, but it has a structure, and reasoning fails when the structure is skipped. The dominant working model in clinical medicine is the principlism of Beauchamp and Childress: four prima facie principles, each binding unless it conflicts with another, none lexically superior, and the work is the balancing when two collide.

• Respect for autonomy — the patient's right to make her own decision about her own body, provided she has capacity and the decision is voluntary and informed. In O&G this is the strongest principle, because almost every decision is about a woman's own reproductive body and the historical paternalism here was severe.
• Beneficence — acting in the patient's interest, providing net benefit.
• Non-maleficence — primum non nocere; not inflicting net harm. Beneficence and non-maleficence are distinct: a Caesarean both benefits and harms, and weighing the two is the clinical act.
• Justice — fairness in the distribution of benefits, risks and resources. In a constrained state system this is not abstract: every theatre slot, ICU bed and dose of an expensive drug allocated to one woman is withheld from another.

A principle is prima facie, not absolute — it holds unless a weightier obligation overrides it in the specific case. Autonomy usually trumps a doctor's view of beneficence, which is why a competent refusal stands; but autonomy does not compel a doctor to provide a futile or harmful intervention on demand, because autonomy is a liberty (the right to refuse) more than a claim (the right to command any treatment).

The principles sit on older theory worth being able to name. Consequentialism (the right act is the one with the best outcomes) underlies cost-effectiveness and resource arguments. Deontology (some acts are right or wrong regardless of outcome — duties, rules, rights) underlies "you may not deceive the patient even for her own good". Virtue and care ethics ask what a person of good character, attentive to the particular relationship, would do — useful precisely where rules run out, as in breaking bad news or sitting with a refusing woman. No single theory resolves real cases; the principles are a shared vocabulary that lets a multidisciplinary team reason together.

When a case resists the principles, the structured case-analysis method of Jonsen, Siegler and Winslade — the four quadrants — organises it: medical indications (the facts: diagnosis, prognosis, what each option offers), patient preferences (her competent, informed wishes — autonomy made concrete), quality of life (the outcome she can expect, judged from her perspective not the team's), and contextual features (family, resources, law, institutional and social factors). Filling the four boxes forces the facts to the surface before the moral argument and stops a team arguing values when it is actually disagreeing about prognosis.

Assessment

The assessment in clinical ethics is the assessment of consent and capacity, because a plan that is technically correct but inadequately consented is unlawful and indefensible.

Valid consent has three elements, and all three must hold:

• Capacity — the patient can make this decision now.
• Disclosure — she has been given the information a reasonable patient in her position would want.
• Voluntariness — the decision is her own, free of coercion or undue influence (a controlling partner, a domineering family, a clinician's pressure).

Capacity is decision-specific, time-specific and functional, never a global label. A woman is not "competent" or "incompetent" in the abstract; she has capacity for a particular decision at a particular moment. The functional test asks whether she can understand the relevant information, retain it long enough to use it, weigh it in the balance, and communicate a choice. Failing any one defeats capacity for that decision. Capacity is presumed in an adult; the burden is on the clinician who would override it. Crucially, an unwise decision is not in itself evidence of incapacity — a competent adult may refuse life-saving treatment for reasons others find irrational or for no stated reason at all. Fluctuating capacity (sepsis, eclampsia, opioid analgesia, acute pain, extreme distress) demands reassessment at the moment of decision, not reliance on an earlier finding.

Disclosure is governed by the reasonable-patient material-risk standard, not by professional custom. South African law settled this in Castell v De Greef and the United Kingdom in Montgomery v Lanarkshire: a risk is material if a reasonable person in the patient's position would attach significance to it, or if the doctor is or should be aware that this particular patient would. The old "reasonable doctor" (Bolam/Sidaway) test — disclose what a responsible body of doctors would disclose — no longer governs what risks must be discussed. The practical consequence in O&G is concrete: you cannot omit the small-but-serious or the common-but-troubling risk (anal sphincter injury at instrumental delivery, hysterectomy as a possible end-point of a PPH, the failure rate of sterilisation, venous thromboembolism with combined contraception) on the grounds that "we don't usually mention it". Disclosure includes the diagnosis, the nature and purpose of the proposed intervention, the material risks and benefits, the reasonable alternatives (including doing nothing), and an honest account of uncertainty.

In South Africa the statutory frame is the National Health Act 61 of 2003: s7 prohibits providing a health service without the user's informed consent and requires the provider to take all reasonable steps to obtain it, while s6 obliges the provider to inform the user of her health status in a language and manner she understands. The Act also states that a user capable of understanding must be informed even where she lacks the legal capacity to consent — the ethical core of involving patients in decisions about themselves.

Voluntariness in O&G is not a formality. A consent signed under a partner's gaze, or by a young woman whose family has decided for her, or in the coercive context of intimate-partner control, may be invalid. Where coercion is suspected, the assessment is to see the woman alone.

Documentation is part of the consent, not a separate clerical act. The defensible record is a note of the conversation — what was explained, the material risks named, the alternatives discussed, the patient's questions and her decision — not merely a signed form. A signature on a form with no record of disclosure is weak evidence; a contemporaneous note of a genuine discussion is strong evidence even without a perfect form. Consent is a continuing dialogue, in the HPCSA's phrasing, revisited as the clinical picture changes — the consent taken at booking for a vaginal birth is not consent for an intrapartum Caesarean unless that conversation has been had.

The obstetric setting strains every element of consent at once, which is why it generates the hardest cases. Capacity can be eroded by the very condition you are treating — eclampsia, sepsis, haemorrhagic shock, the disinhibition of severe pain and fear, or opioid and magnesium-induced clouding — so a finding made at booking cannot be assumed to hold in the labour ward. Disclosure has to be delivered under time pressure, often in a second language and across a literacy gap, which is exactly the situation the National Health Act's "language and manner she understands" requirement is written for; a rushed consent through a relative acting as ad-hoc interpreter is a recurrent source of invalid consent. And voluntariness is most fragile precisely where the stakes are highest — the labouring woman surrounded by anxious family, or the young woman whose partner answers the questions for her. The consultant's discipline is to match the depth of the consent process to the gravity and reversibility of the decision: a low-risk, easily reversed step needs less than an irreversible one such as hysterectomy or sterilisation, where the threshold for confirming capacity, voluntariness and genuine understanding is at its highest, and where a cooling-off period is appropriate whenever the clinical situation allows it.

Management

Order the response immediate → ongoing → long-term: establish capacity and a valid consent for the decision in front of you, run the recurring decisions (refusal, surrogate decision-making, the special populations) through the right rule, and embed the longer-term obligations of disclosure, confidentiality and resource stewardship.

Immediate — securing a valid decision now

The South African statutory architecture is unusually clear and you must be able to cite it. In an emergency where the patient cannot consent and there is no time to find a proxy, the doctrine of necessity authorises treatment reasonably required to preserve life or prevent serious harm — but it authorises only what is necessary, not a convenient simultaneous procedure to which she has not consented (sterilising a woman during an emergency Caesarean "while you are in there" is a serious wrong, not a kindness).

Ongoing — the recurring dilemmas and their defensible approach

Refusal of treatment by a competent pregnant woman. This is the sharpest conflict in obstetric ethics and South African law gives it a clear shape. A competent adult may refuse any treatment, and pregnancy does not suspend that right, because the fetus has no separate legal personality before birth — legal subjectivity begins at live birth (the born-alive rule), affirmed when the Christian Lawyers Association litigation held that the Constitution does not confer personhood on the unborn. So a woman who refuses a recommended Caesarean for non-reassuring fetal status cannot be compelled or operated on without consent; she cannot be made an instrument for the fetus against her will. The clinical task is not coercion but the most rigorous possible job of capacity assessment, information, addressing fear (a previous traumatic birth, a needle phobia, mistrust), involving people she trusts, and meticulous documentation — and then respecting the decision.

Surrogate (substitute) decision-making. When an adult permanently or temporarily lacks capacity, decisions are made for her, ideally by the standard of substituted judgement (what she would have chosen, from any advance statement or known values) and, where her wishes are unknown, by best interests (a holistic judgement of her welfare, not merely the medical optimum). The NHA names who may consent on her behalf. A proxy consents to what is in her interest, not the family's convenience.

Advance directives. A clear, applicable refusal of a specified treatment made by a then-competent adult, intended to apply to the situation that has arisen, is ethically weighty as the continuation of her autonomy into a time of incapacity.

Minors. The Children's Act 38 of 2005 lowered consent for medical treatment to 12 with a maturity test (the child understands the benefits, risks and social implications), and allows a child of 12 with that maturity to consent to a surgical operation if duly assisted by a parent or guardian — a meaningful distinction in adolescent gynaecology. Contraception and TOP have their own rules: the CTOP Act lets a pregnant minor consent to termination herself. A young adolescent presenting alone and pregnant is therefore a competent decision-maker in law, which reframes the consultation from "where are her parents?" to "what does she understand and want, and how do I support her?".

Conscientious objection. A practitioner may decline to perform a procedure that violates a deeply held moral or religious conviction (most often termination), but objection is not a right to abandon the patient. The duty, as FIGO sets it out, is to refer promptly to a non-objecting colleague and never to obstruct access; in an emergency — a haemorrhaging incomplete miscarriage, a septic abortion — the duty to provide life-saving care overrides the objection, because conscience does not extend to letting a woman die. The objection attaches to the procedure, not to the woman, and a doctor who refuses even to refer has stepped outside the bounds of legitimate objection.

Long-term — disclosure, confidentiality, futility and justice

Off-label prescribing. Using a drug outside its registered indication is lawful and routine in O&G (misoprostol for induction and PPH; many drugs in pregnancy where the label is silent because pregnant women were excluded from trials). It is governed by beneficence and informed consent, not prohibition: prescribe off-label when the evidence supports it and a licensed alternative is inferior or unavailable, tell the patient it is off-label, base it on sound evidence, and document the rationale. The unethical act is concealed off-label use, not off-label use itself.

End-of-life and futility. Where an intervention cannot achieve the patient's goals — a moribund woman with disseminated cancer, a previable fetus where aggressive obstetric intervention only adds maternal harm — non-maleficence and beneficence permit, and may require, not escalating. Futility is contested ground: "physiological futility" (the treatment cannot work) is firmer than "qualitative futility" (the outcome is judged not worth having), and the latter belongs to the patient's values, not the team's. The defensible path is shared decision-making with honest prognostication, a shift to comfort-focused care that is actively delivered rather than a withdrawal of attention, and an early second opinion or ethics consultation when the team and family disagree.

Confidentiality and its limits. Confidentiality is a strong default but not absolute. It yields where the patient consents, where a court or statute compels disclosure, or where disclosure is necessary to prevent serious harm to an identifiable third party — and O&G generates exactly these: a notifiable infection, an HIV-positive woman whose partner is at unprotected risk and who refuses to disclose after counselling and time, suspected child abuse or statutory under-age sex, and a patient unfit to drive. The discipline is to disclose the minimum necessary, to the right person, after attempting to obtain consent, and to record the justification — never to gossip a breach into the corridor.

Justice and resource allocation. In a constrained state system, rationing is unavoidable and the only choice is whether it is done explicitly and fairly or implicitly and arbitrarily. The defensible frame is procedural: allocate on clinical need and capacity to benefit by transparent, consistent criteria applied to everyone, not on ability to pay, social worth, or the loudest family. A consultant's justice obligation is to the patients not in front of her as well as the one who is — which is why "do everything for this patient regardless" is not automatically the ethical answer when "everything" denies others a fair share of a scarce resource.

Guidelines compared

The professional and legal sources broadly converge on principlism and reasonable-patient consent, but differ in emphasis and in the legal force behind them.

The points of genuine divergence worth knowing: the United States is more litigation-shaped and more deferential to documented institutional process; the UK shifted decisively to the patient's perspective with Montgomery (2015); South Africa reached the same reasonable-patient destination earlier, in Castell (1994), and overlays a constitutional dignity-and-autonomy frame and unusually protective statutory rights for adolescents and for women seeking termination. Where bodies appear to disagree on conscientious objection they largely agree on the floor — you may decline to perform, you may not obstruct, you must refer, and you must act in an emergency.

The evidence & the controversy

Clinical ethics is appraised differently from a drug trial: the "evidence" is the coherence of the argument against principle and law, and the controversy is where reasonable people, reasoning well, still diverge. Three live tensions in O&G are worth being able to argue.

The maternal–fetal conflict is the headline controversy and South African law has, in effect, resolved its legal dimension while leaving the moral one open. Legally, the competent woman's refusal binds because the fetus is not a separate legal person before birth; ethically, clinicians still feel the pull of a near-term viable fetus that could be saved, and the temptation to seek a court order or apply pressure is real. The defensible position is that coercing a competent woman — physically restraining or operating without consent — is both unlawful and corrosive of the trust the whole specialty depends on; the energy belongs in understanding and addressing why she is refusing, not in overriding her. Court-ordered Caesareans, where they have been attempted internationally, are widely regarded now as ethical and practical failures.

Conscientious objection is increasingly contested, not at the extremes but in the middle. FIGO and many ethicists argue the woman's access is paramount and that broad or institution-wide objection (whole hospitals declining to provide termination) functions as an obstruction the duty-to-refer cannot cure; others defend a robust private conscience. The workable consensus — object to the act, never abandon the patient, always refer, always treat the emergency — holds, and the controversy is mostly about how widely objection may be drawn before it becomes a denial of a lawful service.

Resource justice and the cost of new interventions is the quiet, pervasive dilemma in a state system: an expensive immunotherapy or a private-sector standard that the public sector cannot afford forces the consultant to name two plans — the evidence-based one and the deliverable one — and to be honest about which the patient will receive. Pretending the constraint does not exist is the unethical move; managing it transparently and advocating for the patient within a fair system is the ethical one. The current of the wider debate — equity of access, the ethics of two-tier care, the duty to advocate upward — runs straight through everyday SA O&G.

Two currents now sharpen these old questions. The first is coerced or inadequately consented sterilisation, which is not a historical problem: a Commission for Gender Equality investigation found HIV-positive women sterilised in South African public hospitals without valid consent — some made to sign around the time of a Caesarean — and concluded the practice amounted to cruel, inhuman and degrading treatment. The episode is the textbook illustration of why an irreversible, fertility-ending procedure demands the highest consent threshold, why labour is a poor moment to take it, and why voluntariness must be real and not a tick-box; it is also why opportunistic intra-operative sterilisation without prior, settled consent is a serious ethical and legal wrong rather than efficient care. The second is the consent and confidentiality footprint of digital practice — electronic records, image-based teleconsultation, and the ease of sharing a clinical photograph on a messaging app. The principles do not change, but the surface area for a breach grows: a patient consents to her image being taken for her care, not to its circulation in a group chat, and the duty to disclose the minimum to the right person now has to govern a device that makes over-disclosure effortless.

Landmark cases & key evidence

These are the references an examiner expects cited by name. Cite Castell and Montgomery together as the reasonable-patient pair (SA reached it first); cite Christian Lawyers for the legal basis of maternal autonomy over the fetus; and have the three SA statutes — NHA, Children's Act, CTOP — at your fingertips, because the SA answer to almost every consent question is a statute, not a principle alone.

Exam traps & red flags

• Treating a competent refusal as an incapacity to be overridden. An unwise or unexplained refusal by a capacitous adult is binding; the move is to confirm capacity, inform, address the fear and document — not to find her incompetent because you disagree.
• Operating on a refusing pregnant woman "for the baby". The fetus has no separate legal personality before birth; coercing or operating without consent is unlawful and indefensible. There is no court order that makes a non-consensual Caesarean on a competent woman acceptable in SA.
• Mistaking a signed form for valid consent. Consent is the documented conversation about material risks, alternatives and the patient's decision — a signature with no record of disclosure is weak, and consent for one procedure is not consent for another (booking consent ≠ intrapartum Caesarean consent).
• Disclosing only the risks doctors customarily mention. Post-Castell/Montgomery, the test is the reasonable patient; omitting OASIS, hysterectomy as a PPH end-point, or sterilisation failure because "we don't usually mention it" is the old, wrong standard.
• Asking a relative to "consent" for a competent adult. A capacitous adult consents for herself; family cannot consent over her, and a proxy only acts when she lacks capacity and only in her interest.
• Conscientious objection that abandons or obstructs. Declining to perform is permitted; refusing to refer, delaying, or refusing emergency care is not — conscience never extends to letting a woman come to harm.
• Adding an unconsented procedure under necessity or "while we're in there". Emergency necessity authorises only what is necessary to prevent serious harm; opportunistic sterilisation or any add-on the woman did not consent to is a serious wrong.
• Forgetting that a 12-year-old can consent. The Children's Act and CTOP Act give mature adolescents real decisional authority; defaulting to "find a parent" can itself breach the young person's rights (and confidentiality).
• Breaching confidentiality wider than necessary. Even where disclosure is justified (third-party HIV risk, notifiable disease, abuse), the rule is minimum disclosure to the right person after attempting consent — not a corridor conversation.
• Pretending resources are unlimited. Naming only the unaffordable gold-standard and ignoring the deliverable plan, or conversely rationing by ability to pay or social worth, both fail justice; the defensible answer names both plans and allocates by transparent clinical criteria.

Evidence anchors

• Castell v De Greef 1994 (4) SA 408 (C) — discussed: the SA informed-consent / material-risk doctrine
• Montgomery v Lanarkshire Health Board [2015] UKSC 11 — reasonable-patient material-risk standard
• Christian Lawyers Association v Minister of Health (1998; 2005) — no antenatal fetal legal personality
• National Health Act 61 of 2003 (consolidated) — ss 6 & 7, informed consent
• Choice on Termination of Pregnancy Act 92 of 1996 (consolidated)
• FIGO statement — conscientious objection and the duty to refer
• SA Commission for Gender Equality — investigative report on forced sterilisation in public health care services (2020)
• Dickens — conscientious objection and the duty to refer, Int J Gynaecol Obstet 2021
• Four-quadrant (Jonsen/Siegler/Winslade) clinical-ethics method — UW Bioethics paradigm
• Beauchamp & Childress, Principles of Biomedical Ethics — OUP
• Children's Act 38 of 2005, s129 — child consent to medical treatment (≥12 + maturity) and surgery (≥12 + maturity + parental assistance).
• HPCSA Ethical Guidelines for Good Practice in the Health Care Professions — Booklet 1 (general ethical guidelines) and Booklet 4 (Seeking patients' informed consent: the ethical considerations); consent as a continuing dialogue.