Prevention for specific types of inpatient surgery

Type of surgery	Patient has no risk factors	Patient has ≥1 risk factors
Hip replacement	Mechanical prophylaxis plus LMWH or fondaparinux	Mechanical prophylaxis plus LMWH or fondaparinux (continue for four weeks)
Hip fracture	Mechanical prophylaxis plus LMWH or fondaparinux (continue for four weeks)	Mechanical prophylaxis plus LMWH or fondaparinux (continue for four weeks)
Other orthopaedic	Mechanical prophylaxis plus LMWH or fondaparinux	Mechanical prophylaxis plus LMWH or fondaparinux
Cardiac	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH (if no other anticoagulants used)
General	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH or fondaparinux
Gynaecological (excluding caesarean)	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH
Neurosurgery (including spinal surgery)	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH (except patients with ruptured cranial or spinal vascular malformations if the lesion has not been secured)
Thoracic	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH
Urological	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH
Vascular	Mechanical prophylaxis	Mechanical prophylaxis plus LMWH

LMWH=low molecular weight heparin.