Physical examination to screen for peripheral artery disease in a defined Primary Care population: A diagnostic accuracy study
Physical examination to screen for peripheral artery disease in a defined Primary Care population: A diagnostic accuracy study
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DOI:
10.1111/ijcp.13253
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发表时间:
2018-11-01
影响因子:
2.6
通讯作者:
Notario-Pacheco, Blanca
中科院分区:
文献类型:
--
作者:
Herraiz-Adillo, Angel;Pinar-Serrano, Olga;Notario-Pacheco, Blanca
Introduction: Peripheral arterial disease (PAD) is an underdiagnosed prevalent disease which implies high cardiovascular risk. Professionals usually depend on physical examination to screen for PAD.Objective: To assess the diagnostic accuracy of physical examination to screen for PAD in a rural Primary Care population and to evaluate the nurse-physician level of agreement in pedal pulse palpation.Methods: Diagnostic accuracy study in which two experienced professionals (physician-nurse) prospectively performed pedal pulse palpation (grading as absent, reduced, normal, or bounding), femoral bruit auscultation and calf circumference (index tests) comparing with Doppler ABI (reference test, positive cut-off: 0.9 >= ABI >= 1.4) in 158 consecutive subjects. Inclusion criteria: presence of diabetes, dyslipidaemia, hypertension, smoking habit (current or former), or age >= 65.Results: Of 315 legs included, PAD was confirmed in 38 (12.1%) legs. Absent dorsalis pedis (DP) and posterior tibial (PT) pulses were found in 37 (11.7%) and 67 (21.3%) legs, respectively. Regarding nurse evaluation, when a positive test was set if DP or PT were absent (more sensitive cut-off), sensitivity was = 86.8 (95% CI: 74.8-98.9), specificity=82.7 (95% CI: 78.0-87.3), likelihood ratio+ = 5.01 (95% CI: 3.77-6.67), likelihood ratio-= 0.16 (95% CI: 0.07-0.36), and diagnostic odds ratio (dOR)=31.5 (95% CI: 11.7-84.8). Age, diabetes, and calcification (ABI >= 1.4) influenced the rate of a false negative finding in pedal palpation. Physician-nurse weighted kappa coefficient was=0.649 (95% CI: 0.599-0.699). The presence of a femoral bruit auscultation had a dOR=3.8 (95% CI: 1.1-13.1), and a calf circumference