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Appendicitis presenting as the first manifestation of colorectal carcinoma: a 13-year retrospective study.

Abstract Appendicitis in older adults may present as the first sign of underlying colorectal cancer. We aim to determine whether there was a difference in the rate of diagnosis of colorectal carcinoma for patients ≥45 years following a presentation with appendicitis, compared with New Zealand standardised rates.
PMID
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Authors

Mayor MeshTerms
Keywords
Journal Title the new zealand medical journal
Publication Year Start




PMID- 28727691
OWN - NLM
STAT- MEDLINE
DA  - 20170720
DCOM- 20170724
LR  - 20170724
IS  - 1175-8716 (Electronic)
IS  - 0028-8446 (Linking)
VI  - 130
IP  - 1459
DP  - 2017 Jul 21
TI  - Appendicitis presenting as the first manifestation of colorectal carcinoma: a
      13-year retrospective study.
PG  - 25-32
AB  - AIM: Appendicitis in older adults may present as the first sign of underlying
      colorectal cancer. We aim to determine whether there was a difference in the rate
      of diagnosis of colorectal carcinoma for patients >/=45 years following a
      presentation with appendicitis, compared with New Zealand standardised rates.
      METHOD: Retrospective study of patients >/=45 years with a confirmed diagnosis of
      appendicitis from 2003 to 2015 inclusive. The rate of colorectal carcinoma
      diagnosed during the 36-month follow-up period was calculated and compared to
      standardised rates, as per the New Zealand cancer registry. RESULTS: Six hundred 
      and twenty-nine patients were included for analysis, 15 had a diagnosis of
      colorectal cancer in the follow-up period. Patients >/=45 years had a 6.3-fold
      (CI 3.6-10.2) increased risk of colorectal carcinoma than predicted given the
      population demographics. Those patients aged between 45-60 years had a 17-fold
      (95% CI 8-32.2) increased standardised risk ratio. CONCLUSION: This is the first 
      study of its kind conducted in Australasia. This study found patients >/=45 years
      who present with appendicitis have significantly increased risk of underlying
      colorectal cancer. Until further research is conducted the authors recommend
      clinicians consider colonic investigation for older adults following a diagnosis 
      of appendicitis.
FAU - Shine, Rebecca J
AU  - Shine RJ
AD  - Registrar General Surgery, Bay of Plenty DHB.
FAU - Zarifeh, Abigail
AU  - Zarifeh A
AD  - House Officer, Bay of Plenty DHB.
FAU - Frampton, Chris
AU  - Frampton C
AD  - Biostatistician, University of Otago, Christchurch.
FAU - Rossaak, Jeremy
AU  - Rossaak J
AD  - Consultant Upper Gastrointestinal and General Surgeon, Bay of Plenty DHB, Senior 
      Lecturer, University of Auckland, Auckland.
LA  - eng
PT  - Journal Article
DEP - 20170721
PL  - New Zealand
TA  - N Z Med J
JT  - The New Zealand medical journal
JID - 0401067
SB  - IM
MH  - Age Distribution
MH  - Aged
MH  - Aged, 80 and over
MH  - Appendicitis/*diagnosis/*epidemiology
MH  - Colon/pathology
MH  - Colonic Neoplasms/*diagnosis/*epidemiology
MH  - Colonoscopy
MH  - Colorectal Neoplasms/*diagnosis/*epidemiology
MH  - Diagnosis, Differential
MH  - Female
MH  - Follow-Up Studies
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - New Zealand/epidemiology
MH  - Odds Ratio
MH  - Registries
MH  - Retrospective Studies
MH  - Risk Factors
COI - Nil.
EDAT- 2017/07/21 06:00
MHDA- 2017/07/25 06:00
CRDT- 2017/07/21 06:00
PST - epublish
SO  - N Z Med J. 2017 Jul 21;130(1459):25-32.