Impact of Clinical Context on 14-3-3 Test for Diagnosing Sporadic CJD
Author Information
Author(s): Cuadrado-Corrales Natividad, Jiménez-Huete Adolfo, Albo Carmen, Hortigüela Rafael, Vega Luz, Cerrato Laura, Sierra-Moros Maríajosé, Rábano Alberto, de Pedro-Cuesta Jesús, Calero Miguel
Primary Institution: Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
Hypothesis
The study investigates how the clinical context influences the performance of the 14-3-3 test for diagnosing sporadic Creutzfeldt-Jakob disease (sCJD).
Conclusion
The 14-3-3 assay provides useful information that complements clinical and EEG data in diagnosing sCJD.
Supporting Evidence
- The predictive values of the 14-3-3 test varied significantly based on initial clinical classification.
- PPV was highest in probable sCJDi cases at 98.8%.
- NPV was 100% for non-sCJDi cases.
Takeaway
Doctors can use a special test called the 14-3-3 test to help figure out if someone has a brain disease called sCJD, but it works better when they already suspect the disease.
Methodology
The study analyzed 672 patients with suspected sCJD using WHO criteria to classify cases and evaluate the predictive values of the 14-3-3 test.
Potential Biases
Potential biases due to the exclusion of cases with insufficient follow-up and the interpretation of trace results.
Limitations
The study had a low autopsy rate and significant losses from insufficient follow-up.
Participant Demographics
The study included 672 patients with similar gender distribution and median age of 70.4 years for sCJD cases.
Digital Object Identifier (DOI)
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