Surgery and Risk of Sporadic Creutzfeldt-Jakob Disease in Denmark and Sweden: Registry-Based Case-Control Studies

Department of Applied Epidemiology, National Center for Epidemiology, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Carlos III Institute of Health, Madrid, Spain.
Neuroepidemiology (Impact Factor: 2.48). 10/2008; 31(4):229-40. DOI: 10.1159/000163097
Source: PubMed

ABSTRACT Epidemiologic evidence of surgical transmission of sporadic Creutzfeldt-Jakob disease (sCJD) remains controversial.
From Danish and Swedish registries we selected 167 definite and probable sCJD cases (with onset between 1987 and 2003) and 3,059 controls (835 age-, sex-, and residence-matched, and 2,224 unmatched). Independent of case/control status, surgical histories were obtained from National Hospital Discharge Registries. Surgical procedures were categorized by body system group and lag time to onset of sCJD. Exposure frequencies were compared using logistic regression.
A history of any major surgery, conducted >/=20 years before sCJD onset, was more common in cases than both matched (OR = 2.44, 95% CI = 1.46-4.07) and unmatched controls (OR = 2.25, 95% CI = 1.48-3.44). This observation was corroborated by a linear increase in risk per surgical discharge (OR = 1.57, 95% CI = 1.13-2.18; OR = 1.50, 95% CI = 1.18-1.91). Surgery of various body systems, including peripheral vessels, digestive system and spleen, and female genital organs, was significantly associated with increased sCJD risk.
A variety of major surgical procedures constitute a risk factor for sCJD following an incubation period of many years. A considerable number of sCJD cases may originate from health care-related accidental transmission.

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Available from: Mabel H Cruz, Aug 01, 2015
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    • "Hence, the risk of iatrogenic transmission from surgical instruments has previously been considered to be relatively low. However, recent epidemiological studies have suggested an association between surgical treatment and sporadic CJD (Collins et al., 1999; Mahillo-Fernandez et al., 2008; de Pedro-Cuesta et al., 2010). In contrast, in variant CJD (vCJD), PrP Sc and infectivity have been shown to be present in a wide variety of tissues throughout the body in addition to the CNS, these include the lymphoreticular system (spleen, tonsils and lymph nodes), components of the eye and optic nerve, and in the gastrointestinal tract (Wadsworth et al., 2001; Bruce et al., 2001; Head et al., 2004; Joiner et al., 2005; Wadsworth et al., 2007; Notari et al., 2010). "
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