title: Mixed adherence to clinical practice guidelines for colorectal cancer in the Southern Netherlands in 2002.
abstract: OBJECTIVE
  Population-based cancer registries can provide excellent data for insight in disease management practice. This study examines the extent to which the consensus-based national clinical guidelines (version 2000-2001) for colorectal cancer (CRC) had been implemented in the diagnostic and treatment approach in the Southern Netherlands in 2002.
  
  
  METHODS
  Data were gathered from the medical records for a random sample from the Eindhoven Cancer Registry of 308 patients with colorectal cancer. Adherence to clinical guidelines was determined for diagnostic assessment, pathology, and treatment during the first year after diagnosis.
  
  
  RESULTS
  Surgical procedures and referral for pre-operative radiotherapy were carried out largely conform the recommendations. The number of performed colonoscopies among colon cancer patients amounted to 60%; contrast enemas after incomplete colonoscopy were performed in only 27% of patients. The median number of examined lymph nodes was only six for patients with colon and five for patients with rectal cancer; the administration of adjuvant chemotherapy for patients with stage III colon cancer decreased from 95% of patients younger than 70 years to 48% of patients over 70.
  
  
  CONCLUSIONS
  Adherence to clinical guidelines was not optimal. Feedback to surgeons and pathologists should improve adherence, especially with respect to nodal retrieval and assessment.
authors.affiliation: Eindhoven Cancer Registry, Comprehensive Cancer Centre South (IKZ), P.O. Box 231, 5600 AE Eindhoven, The Netherlands.
authors.forename: V E P P
authors.initials: VE
authors.lastname: Lemmens
authors.forename: C D G W
authors.initials: CD
authors.lastname: Verheij
authors.forename: M L G
authors.initials: ML
authors.lastname: Janssen-Heijnen
authors.forename: H J T
authors.initials: HJ
authors.lastname: Rutten
authors.forename: J W W
authors.initials: JW
authors.lastname: Coebergh
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy*; D019983:Guideline Adherence; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D009426:Netherlands; D010818:Practice Patterns, Physicians' / Q000592:standards*; D012042:Registries