The diagnosis yield from the five decision groups (clinical hunch and four CDSS) was as follows—clinical hunch, 15%; PERC rule, 18% (6% when bypassed); Wells score, 19% (11% when bypassed); revised Geneva score, 26% (13% when bypassed); and YEARS criteria, 18% (6% when bypassed)...
Wells scorePERC ruleRevised Geneva scoreYEARS criteriaPulmonary embolism (PE) is a common and potentially life-threatening condition. Since it is considered a 'do not miss' diagnosis, PE tends to be over-investigated beyond the evidence-based clinical decision support systems (CDSS), which in ...
(P>0.05) .The Kappa value of Wells score and CTPA was 0.45, the conformity was moderate;the Kappa value of YEARS algorithm and CTPA was 0.22, the conformity was passable;the Kappa value of Wells score and YEARS algorithm was 0.11, the conformity was bad.The AUC of Wells score and YEARS...
Below are three validated systems: the Modified Wells Scoring System, the Revised Geneva Scoring System, and the Pulmonary Embolism Rule Out Criteria (PERC). [4, 5, 6] Simplified versions of the Wells score and the revised Geneva score have been developed. Initial studies support the validity ...
78 patients (21%) had a negative PERC score. When further diagnostic studies would have been omitted in these patients, two (subsegmental) PEs would have been missed, resulting in a sensitivity of 89% (64%-98%) and a negative likelihood ratio (LR-) of 0.52 (0.14-1.97). The default ...
Wells scores, PERC scores and age-adjusted D-dimers were calculated and compared against CTPA findings. Results Out of 1174 patients who underwent CTPA, 1158 had complete data set. Application of PERC rules to low-risk patients (Wells score 0–1; n = 311, 27%) would have avoided 64 CTP...