Classification Vs Diagnostic Criteria: the Challenge of Diagnosing Axial Spondyloarthritis

Overview

Journal Rheumatology (Oxford)

Publisher Oxford University Press

Specialty Rheumatology

Date 2020 Oct 14

PMID 33053191

Citations 32

Authors

Denis Poddubnyy

Affiliations

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Abstract

In recent years, significant progress has been made in improving the early diagnosis of spondyloarthritides (SpA), including axial SpA. Nonetheless, there are still issues related to the application of classification criteria for making the primary diagnosis of SpA in the daily practice. There are substantial conceptional and operational differences between the diagnostic vs classification approach. Although it is not possible to develop true diagnostic criteria for natural reasons as discussed in this review, the main principles of the diagnostic approach can be clearly defined: consider the pre-test probability of the disease, evaluate positive and negative results of the diagnostic test, exclude other entities, and estimate the probability of the disease at the end. Classification criteria should only be applied to patients with an established diagnosis and aimed at the identification of a rather homogeneous group of patients for the conduction of clinical research.

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