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Sporadic Creutzfeldt-Jakob disease and surgery: a case-control study using community controls
H J T Ward1, D Everington, E A Croes
1National CJD Surveillance Unit, Western General Hospital, Edinburgh, UK. h.ward@ed.ac.uk
Neurology
|August 28, 2002
Summary
Sporadic Creutzfeldt-Jakob disease (CJD) risk may be linked to past surgical procedures, particularly in females. Certain surgeries showed increased risk, while others like tonsillectomy and appendectomy appeared protective.
Area of Science:
- Neurology
- Epidemiology
- Infectious Disease Research
Background:
- The etiology of sporadic Creutzfeldt-Jakob disease (CJD) remains largely unknown.
- Previous research suggesting a link between CJD and surgical history suffered from methodological limitations.
Purpose of the Study:
- To investigate potential medical and associated risk factors for sporadic CJD.
- Part of the European Union collaborative studies on CJD conducted from 1993 to 1995.
Main Methods:
- A case-control study involving 326 patients with sporadic CJD and 326 matched community controls.
- Data collected through population-based studies in France, Germany, the Netherlands, and the UK (1993-1995) and controls recruited in 2000.
Main Results:
- A history of surgery was significantly associated with increased sporadic CJD risk (OR 1.8), with a stronger association in females (OR 2.5).
- Gynecologic and "other" operations showed increased risk, while tonsillectomy and appendectomy were associated with decreased risk.
- Ear piercing in females (OR 1.6) and psychiatric visits (OR 2.6) were also linked to higher sporadic CJD risk.
Conclusions:
- Findings support the hypothesis that unrecognized surgical contamination may contribute to sporadic CJD.
- The study's limitations, disease rarity, and potential biases necessitate cautious interpretation of results.