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Appendicitis and oxyuriasis: an analysis of 400 cases

Sławomir Poletajew 1,2, Marcin Czarniecki 1, Michał Duda 1, Łukasz Hutnik 1,2, Katarzyna Kocznur 1,2, Tomasz Słodkowski 1, Anna Woźna 1, Ewa Zielińska 1

1 Students’ Scientific Society at the Department of Pathologic Anatomy, Medical University of Warsaw
Promotor of study: Ewa Walczak MD
Chief: Aleksander Wasiutyński Ph MD

2 Students’ Scientific Society at the Department of General and Vascular Surgery, Miedzyleski Specialist Hospital in Warsaw
Promotor of study: Tadeusz Mularczyk MD
Chief: Waldemar Kostewicz Ph MD



Introduction.
Presence of pinworms in appendix vermiformis is relatively rare – such a location of this parasitosis is found in 1,3% of cases. However pinworms can cause symptoms of appendicitis.

Aim.
The aim of the study was to estimate the frequency of oxyuriasis of appendixes removed due to suspicion of appendicitis and to asses the influence of infestation on pathogenesis of appendicitis.

Material and methods.
10899 patients aged 8-95 (mean 28,2) underwent appendectomy due to suspicion of appendicitis in 1967-2007. A retrospective analysis of all histopathological examinations of the specimen was done. The frequency of oxyuriasis, sex and age predispositions, type and intensity of inflammation were assessed.

Results.
Enterobial infestation was diagnosed in 3,6% (n=400) of patients. Women were affected three times more often than men (5.2% vs 1.9%, p<0,05). Oxyuriasis was present predominantly in patients up to the age of 20 (mean age 17,5). The inflammation was chronic in 70% of cases, chronic exacerbated in 20% of cases and acute in 10% of cases. The frequency of oxyuriasis was similar in consecutive decades (2-4%).

Conclusions.
  • Enterobial infestation of appendix vermiformis is diagnosed more often in patients suffering from appendicitis than globally in polish population what may suggest the link between two pathologies.
  • Oxyuriasis of appendix is diagnosed predominantly in young women what can be the result of taking care of children.
  • During last 50 years there is no clear tendency to change the frequency of oxyuriasis of appendix.
  • There is a need to continue and to extend the study for final assessment of influence of infestation on pathogenesis of appendicitis.




PREZENTACJA PRACY:
VIIth International Conference of Student Research Groups of Medical University of Warsaw - “Medical Problems in the year 2009”. Starogard Gdański, 10-11.07.2009

NAGRODY:
Wyróżnienie Surgery Session VIIth International Conference of Student Research Groups of Medical University of Warsaw - “Medical Problems in the year 2009”. Starogard Gdański, 10-11.07.2009