Disclaimer: This is educational commentary based on published evidence and guidelines. It does not replace individual clinical judgment, local protocols or specialist advice. Clinicians remain responsible for decisions tailored to each patient.
Core cardiac anatomy — four chambers, one-way valves, coronary circulation, pericardial sac — is taught universally. In clinical negligence litigation these structures explain mechanisms of harm: ischaemia from coronary occlusion, pump failure, valvular dysfunction or conduction abnormalities. For women, however, average differences in heart size, coronary vessel calibre, myocardial architecture and autonomic responses mean the same pathology can manifest differently.
Women’s coronary arteries are narrower on average; plaque distribution more often involves microvasculature or is diffuse rather than focal large-vessel occlusion. Conditions such as myocardial infarction with non-obstructive coronary arteries (MINOCA), SCAD and stress cardiomyopathy (Takotsubo) occur disproportionately in women. SCAD accounts for a significant proportion of pregnancy-associated myocardial infarctions.
Pregnancy and peripartum considerations
Cardiac output rises 30–50% in pregnancy. This “stress test” can reveal or precipitate problems. Peripartum cardiomyopathy and SCAD require specific vigilance. In labour, maternal cardiac events or deterioration can produce fetal heart rate abnormalities on CTG. Conversely, primary fetal distress may coincide with maternal compromise. Accurate interpretation of CTG, timely escalation and clear communication between obstetrics, midwifery and cardiology teams are essential. Failures in this interface feature in many birth injury claims.
Diagnostic and consent challenges
Women with acute coronary syndromes are more likely to present with nausea, fatigue, dyspnoea or epigastric discomfort alongside or instead of classic chest pain. While chest pain remains common, additional non-chest symptoms occur more frequently. Studies using registry data (including UK MINAP) have shown higher rates of initial misdiagnosis in women.
Under the Montgomery case law, the test is what a reasonable patient in the woman’s position would consider material. For a woman planning or capable of pregnancy, risks of ionising radiation, certain antiplatelet regimens, or surgical interventions on future fertility and pregnancy must be discussed. Material risks are patient-specific; assumptions based on a “typical” (often male-derived) profile are legally and clinically risky.
Common allegations in negligence claims
- Failure to investigate or refer when symptoms do not fit classic male-pattern disease.
- Delayed troponin/ECG/angiography in women presenting to emergency or primary care.
- Inadequate counselling on pregnancy implications of cardiac interventions or medications.
- Poorly coordinated care between cardiology and maternity services leading to missed deterioration.
- Suboptimal CTG interpretation or response in the context of possible maternal cardiac compromise.
Reducing risk in practice
- Apply a low threshold for cardiac work-up in women with suggestive symptoms, especially peripartum or with cardiovascular risk factors.
- Document symptom exploration fully, including atypical features.
- Use sex-informed reference ranges and consider microvascular or SCAD differentials where indicated.
- In pregnancy or postpartum, involve maternal medicine or cardio-obstetric expertise early.
- Apply Montgomery rigorously: discuss material risks relevant to the individual woman’s life stage and reproductive plans.
- Ensure robust handover and escalation pathways between specialties.
Training that treats the female heart as a smaller male heart or assumes uniform presentation increases both clinical and medicolegal risk.
Guidelines from NICE, ESC and others increasingly note sex differences; local protocols and simulation training should reflect this.
The governance article on this site discusses system-level requirements for training and data.
The WHIP analysis piece explores the broader pattern of fragmentation between specialties.
Mandatory disclaimer
This article is for general information and discussion only. It is not medical or legal advice, nor a substitute for professional advice. To contribute evidence, ideas, or corrections, please email womenshealthproject@outlook.com. Please do not share personal data when emailing. Individual cases cannot be reviewed.
This project does not offer any form of legal service and cannot assist with complaints, claims or individual advocacy. This platform is independent and not affiliated with any law firm, regulator, inquiry or clinical body.
© 2026 Women’s Health Inquiry Project (WHIP). This article includes original analysis of material from publicly available national sources. It may not be reproduced without permission.
References
- British Heart Foundation cardiovascular statistics and consensus statements on women’s heart disease.
- Montgomery v Lanarkshire Health Board [2015] UKSC 11 and subsequent application in cardiac consent cases.
- NICE guidance on acute coronary syndromes (QS68 and related) and intrapartum fetal monitoring.
- Reviews: Regitz-Zagrosek (Nature Reviews Cardiology, 2023); St Pierre et al. on female vs male heart architecture (2022).
- SCAD and peripartum cardiomyopathy literature (e.g., Tweet et al.; UK registry data).
- British Cardiovascular Society consensus statements on underdiagnosis in women.
Related pages on this site
Governance and Accountability in Women’s Cardiac Care
WHIP Analysis: Cardiac Anatomy and Structural Gaps
Maternity Safety and Clinical Negligence