The age-standardised incidence of first-time VTE is 1.92 per 1,000 person-years.
Diagnosis is made by:
Compression Ultrasonography — 94% PPV
MRI / CT scan
If the initial study is negative and the clinical suspicion is high, a repeat study should be obtained on Day 5-7 — unless a complete extended lower extremity ultrasound scan was performed the first instance (although this requires specialised instruments and is highly operator dependent).
Pre-test probability (e.g. Wells score, Hamilton, Amuse)
A low Wells score (pre-test probability) especially if the D-dimer is low has a NPV of 96%.
A high Wells score (pre-test probability) has a PPV of ∼ 75%.
Mother To Baby
Nation’s leading authority and most trusted source of evidence-based information on the safety of medications and other exposures during pregnancy and while breastfeeding.
Free telephone service for the women of NSW, based at the Royal Hospital for Women, Randwick, staffed by a group of counsellors with expertise in the use of medications in pregnancy and breastfeeding.
The Newborn & pædiatric Emergency Transport Service