title: Colorectal cancer resection in the Australian nonagenarian patient.
abstract: OBJECTIVE
  The nonagenarian population is a rapidly growing segment of the Australian population. Surgical resection continues to offer the best chance of long-term survival in colorectal cancer. The primary aims of the present study were to evaluate the 30-day mortality and survival of Australian patients ≥ 90 years of age undergoing surgical resection for colorectal cancer in our health service. The secondary aims were to examine the clinicopathological characteristics of the patients and their tumours.
  
  
  METHODS
  All patients ≥ 90 years of age undergoing surgical resection for colorectal cancer from 1998 to 2012 were identified in a centralized multihospital database. Key clinicopathological data, 30-day mortality and long-term overall survival were recorded for each patient.
  
  
  RESULTS
  There were 121 patients identified of median age 91 years, 74% of whom were female. The median tumour size was 40 mm, and 51% of operations were carried out as an emergency. The TNM stage was Stage I/II in 57%, Stage III in 40% and Stage IV in 3%. The 30-day mortality was 6.6% (eight of 121) and the 1-, 3- and 5-year overall survival rates were 82.6%, 50.2% and 32.3%, respectively.
  
  
  CONCLUSIONS
  Surgical resection in the nonagenarian patient has an acceptable mortality and offers good overall survival.
authors.affiliation: Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.|Department of Colorectal Surgery, Royal North Shore Hospital, St Leonards, New South Wales, Australia.
authors.forename: S
authors.initials: S
authors.lastname: Schlichtemeier
authors.affiliation: Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.|Department of Colorectal Surgery, Royal North Shore Hospital, St Leonards, New South Wales, Australia.
authors.forename: A
authors.initials: A
authors.lastname: Logaraj
authors.affiliation: Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.|Department of Anatomical Pathology, Royal North Shore Hospital and Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, New South Wales, Australia.
authors.forename: A J
authors.initials: AJ
authors.lastname: Gill
authors.affiliation: Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.|Department of Colorectal Surgery, Royal North Shore Hospital, St Leonards, New South Wales, Australia.|Healthy Ageing and Sydney Vital Translational Cancer Research, Kolling Institute of Medical Research, Northern Sydney Local Health District, St Leonards, New South Wales, Australia.
authors.forename: A
authors.initials: A
authors.lastname: Engel
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology / Q000601:surgery*; D002288:Adenocarcinoma, Mucinous / Q000473:pathology / Q000601:surgery*; D000369:Aged, 80 and over; D001315:Australia; D003082:Colectomy; D015179:Colorectal Neoplasms / Q000473:pathology / Q000601:surgery*; D013505:Digestive System Surgical Procedures; D017558:Elective Surgical Procedures; D004630:Emergencies; D005260:Female; D006801:Humans; D008297:Male; D009026:Mortality; D009367:Neoplasm Staging; D012189:Retrospective Studies; D015996:Survival Rate; D047368:Tumor Burden
keywords: Australia; Colorectal cancer; nonagenarian; resection