Description of cardiac adverse events
| Case # | Class | Adverse event | Timing | Mode of delivery (indication) | Maternal HD | Risk factors for CVD | Other risk factors |
| n.1 | X | Myocardial infarction HF | Post partum (day 4) | CS (breech) | No history of HD | 44 yo BMI 44 Smoker | ART Twins |
| n.2 | II–III | Atrial fibrillation | Pregnancy (26 weeks) | CS (HD) | Aortic stenosis with congenital bicuspid aortic valve | None | |
| n.3 | X | Hypokinetic cardiomiopathy HF | Post partum (day 4) | CS (2 previous CSs) | No history of HD | 41 yo CH Smoker | |
| n.4 | II | HF | Post partum (day 9) | VD | WPW syndrome (not treated) | None | |
| n.5 | II | Deep vein thrombosis PSVT | Pregnancy (10 weeks) Post partum (day 9) | CS (severe preterm PE) | PSVT | None | |
| n.6 | II | HF | Post partum (day 2) | CS (severe preterm PE) | Prolonged QT interval | None | |
| n.7 | I | HF | Post partum (day 9) | VD | Mild valvular insufficiency Previous surgery for ALCAPA syndrome | BAME | |
| n.8 | X | Myocardial infarction with non-obstructive coronary arteries | Post partum (day 1) | CS (failure to progress) | No history of HD | BAME Smoker | |
| n.9 | III | HF | Post partum (day 0) | CS (severe preterm PE) | Moderate LV impairment | 42 yo | |
| n.10 | X | HF | Post partum (day 0) | CS (severe preterm PE) | Pericardial effusion | None | Twins |
| n.11 | III | Myocardial infarction HF | Post partum (day 5) | CS (failure to progress) | Previous PPCM w/out any residual LV impairment | BMI 37 | |
| n.12 | IV | HF | Post partum (day 3) | VD (vacuum) | Severe mitral and aortic stenosis | CH | |
| n.13 | X | HF | Pregnancy (29 weeks) | VD | Dilated coronary sinus due to persistent left superior vena cava | None | ART Twins |
| n.14 | II | Atrial fibrillation | Pregnancy (376/7 weeks) | CS (breech) | Moderate LV hypertrophy w/out LV impairment | None | |
| n.15 | X | Deep vein thrombosis | Pregnancy (24 weeks) | VD | Moderate LV hypertrophy w/out LV impairment Patent foramen ovale | None | |
| n.16 | III | HF | Pregnancy (235/7 weeks) | VD (252/7 weeks after pPROM and placenta abruptio) | Moderate LV impairment | BAME | |
| n.17 | II/III | HF Bilateral ovarian vein thrombosis | Post partum (day 1) | CS (chorioamnionitis after pPROM at 246/7 weeks) | Moderate valvular insufficiency | BAME | |
| n.18 | X | HF | Post partum (day 3) | CS (severe preterm PE) | Moderate LV hypertrophy w/out LV impairment | None | ART Triplets |
| n.19 | II | PSVT HF | Pregnancy (40 weeks) Post partum (day 0) | CS (abnormal FHR in labour) | PSVT | None | |
| n.20 | II | Wide complex tachycardia | Intrapartum | VD | Mild valvular insufficiency Right bundle branch block | None | |
| n.21 | II | PSVT | Pregnancy (28 weeks) | CS (3 previous CSs) | PSVT | BAME Diabetes |
ALCAPA, anomalous left coronary artery from the pulmonary artery; ART, assisted reproductive technology; BAME, Black, Asian, and minor ethnicities; BMI, body mass index; CH, chronic hypertension; CS, caesarean section; CVD, cardiovascular disease; FHR, fetal heart rate; HF, heart failure; LV, left ventricle; PE, pre-eclampsia; PPCM, peripartum cardiomiopathy; pPROM, preterm premature rupture of membranes; PSVT, paroxysmal supraventricular tachycardia; VD, vaginal delivery; WPW, Wolf-Parkinson-White; yo, years old.