Table 1

Characteristics of operation clusters 1 to 37

Operation cluster
Operations contained within the cluster

1. Open heart/thoracic aortic surgery
Aortic valve surgery with/without CABG surgery

Aortic and mitral valve surgery

Mitral valve surgery with/without CABG surgery

Thoracic aortic repair/replacement

CABG surgery and ventricular surgery

CABG surgery and CEA

2. CABG surgery
CABG surgery

3. Resective thoracic surgery
Reoperation after cardiac surgery

Sternal wound repair/closure

Pericardial surgery

Lobectomy or wedge resection

Insertion of Denver shunt

Lung biopsy

Mediastinal surgery

Thoracic surgery other

4. Pleural surgery
Pleurodesis

Pleural decortication

Drainage of empyema

5. Bronchoscopy
Brochoscopy (including laser and stent)

6. Upper gastrointestinal surgery
Oesophageal surgery

Gastric resection/binding

7. Intestinal endoscopy/insertion of
Oesophagoscopy (including laser/stent)
feeding tube
Endoscopy

Insertion of feeding tube

8. Appendicectomy
Appendicectomy

9. Hepatobilary or pancreatic surgery
Gall gladder/biliary surgery

ERCP/bile duct manipulation

Pancreatic/spleen resection

Liver resection/portocaval shunt

10 Breast surgery
Breast surgery

11. Bowel surgery/hernia repair
Bowel resection/stoma formation or reversal

Hernia repair

12. Head and neck, facial surgery
Thyroid/parathyroid surgery

Head and neck resection

Nasal surgery

Facial surgery

Tracheostomy surgery

13. Wound debridement/mass biopsy
Wound debridement/mass biopsy

14. Haemorroid/perianal surgery
Haemorroid/perianal surgery

15. Laparotomy other
Tenkoff catheter insertion

Laparotomy other

16. Hip fracture
Hip replacement/dynamic hip screw

17. Joint aspiration/lavage
Joint aspiration/lavage/scope

18. Spinal fusion/laminectomy
Spinal fusion/laminectomy

19. Amputation
Amputation

20. Limb fracture
Repair fracture upper limb

Repair fracture lower limb

21. Orthopedic other
Joint reconstruction/relocation

Removal of prosthesis

Tendon repair

22. Vascular bypass or
Lower limb vascular bypass
endarterectomy/fistula surgery
Upper limb vascular procedure

Carotid endarterectomy

Formation/exploration of fistula

23. Abdominal aortic aneurysm
Abdominal aortic aneurysm repair

24. Other vascular surgery
Renal transplant

Varicose veins surgery

25. Cerebral aneurysm clipping
Aneurysm clipping

26. Draining ICH/abscess
Removal of ICH or AVM

Drainage of intra-cranial abscess

27. Cerebral lobectomy/tumour resection
Removal of brain tumour

Temporal lobectomy

28. Neurosurgery other
Insertion of spinal catheter

Insertion/removal of VP shunt

Neurosurgical other

29. Plastic surgical procedure
Hand surgery

Removal of skin cancer and split skin graft

Wound debridement and split skin graft

Flap formation/reconstruction

30. Liver transplant
Liver transplant

31. Anaesthetic procedure
Elective direct current reversion

Insertion of invasive lines

MRI

Other

32. Cystoscopy
Cystoscopy with/without transurethral resection of

bladder tumour

33. Transurethral resection of prostate
Transurethral resection of prostate

34. Open prostatectomy
Open prostatectomy

35. Nephrectomy
Nephrectomy

36. Urology other
Cystectomy and ileal conduit formation

Urolithiasis surgery

37. Gynaecological procedure
TAH and/or oophorectomy

Dilatation and curretage

Gynaecology other

AVM, arteriovenous malformation; CABG, coronary artery bypass graft; CEA, carotid end-arterectomy; ERCP, endoscopic retrograde cholangiopancreatography; ICH, intracerebral haemorrhage; MRI, magnetic resonance imaging; TAH, total abdominal hysterectomy; VP, ventriculoperitoneal.

Jones et al. Critical Care 2007 11:R12   doi:10.1186/cc5673