Table 1 Risk-assessment form for venous thromboembolism (VTE)
First trimester risk factors assessment | Score Tick |
|---|---|
Previous VTE (except a single event related to major surgery) | 4 |
Previous VTE provoked by major surgery | 3 |
Known high-risk thrombophilia | 3 |
Medical comorbidities e.g. cancer, heart failure; active systemic lupus erythematosus, inflammatory polyarthropathy or inflammatory bowel disease; nephrotic syndrome; type I diabetes mellitus with nephropathy; sickle cell disease; current intravenous drug user | 3 |
Family history of unprovoked or estrogen-related VTE or postpartum thromboin first-degree relative | 1 |
Age (> 35 years) | 1 |
Obesity | 1 or 2 a |
Parity ≥3 | 1 |
Smoker | 1 |
Gross varicose veins | 1 |
ART/IVF | 1 |
Multiple pregnancy | 1 |
Hyperemesis | 1 |
OHSS | 1 |
Immobility (strict bed rest ≥3 days), dehydration | 1 |
Current systemic infection | 1 |
Total | |
Second & Third trimester risk factors assessment | |
Hospital admission (> 7 days) | 1 |
Any surgical procedure e.g. appendicectomy | 1 |
Current pre-eclampsia | 1 |
Total | |
Postnatal assessment risk factors assessment | |
Caesarean section in labor | 2 |
Elective caesarean section | 1 |
Mid-cavity or rotational operative delivery | 1 |
Prolonged labor (> 24 h) | 1 |
PPH (> 1 l or transfusion) | 1 |
Preterm birth < 37 + 0 weeks in current pregnancy | 1 |
Stillbirth in current pregnancy | 1 |
Total | |