TY - JOUR
T1 - False positive rate of thoracic outlet syndrome diagnostic maneuvers
AU - Nord, K. M.
AU - Kapoor, P.
AU - Fisher, J.
AU - Thomas, G.
AU - Sundaram, A.
AU - Scott, K.
AU - Kothari, M. J.
PY - 2008/3
Y1 - 2008/3
N2 - Objective: In this study, we aim to determine the false-positive rate & specificity in normal subjects and carpal tunnel syndrome (CTS) patients of five provocative maneuvers used to diagnose thoracic outlet syndrome (TOS). Design/Methods: We prospectively evaluated subjects with clinical and electrophysiological evidence of CTS as well as normal subjects. All subjects underwent provocative testing by a blinded physician, which included the Adson A & B tests, Costoclavicular maneuver (CCM), Elevated arm stress test (Roos), and Supraclavicular pressure (SCP). Results: In the CTS group, false positive tests were observed in 42% in the Adson A test, 45% in the Adson B test, 48% in the CCM, 77% in the Roos test, and 61% in the SCP. 94% of the CTS patients had at least 1 positive TOS diagnostic maneuver. In the normal group, false positive tests were observed in 9% in the Adson A test, 20% in the Adson B test, 16% in the CCM, 47% in the Roos test, and 30% in the SCP. 56% of the normal patients had at least 1 positive TOS diagnostic maneuver. Conclusions: We conclude that current provocative maneuvers used to diagnose TOS result in a high false-positive rate in normal subjects and an even higher false-positive rate in CTS patients.
AB - Objective: In this study, we aim to determine the false-positive rate & specificity in normal subjects and carpal tunnel syndrome (CTS) patients of five provocative maneuvers used to diagnose thoracic outlet syndrome (TOS). Design/Methods: We prospectively evaluated subjects with clinical and electrophysiological evidence of CTS as well as normal subjects. All subjects underwent provocative testing by a blinded physician, which included the Adson A & B tests, Costoclavicular maneuver (CCM), Elevated arm stress test (Roos), and Supraclavicular pressure (SCP). Results: In the CTS group, false positive tests were observed in 42% in the Adson A test, 45% in the Adson B test, 48% in the CCM, 77% in the Roos test, and 61% in the SCP. 94% of the CTS patients had at least 1 positive TOS diagnostic maneuver. In the normal group, false positive tests were observed in 9% in the Adson A test, 20% in the Adson B test, 16% in the CCM, 47% in the Roos test, and 30% in the SCP. 56% of the normal patients had at least 1 positive TOS diagnostic maneuver. Conclusions: We conclude that current provocative maneuvers used to diagnose TOS result in a high false-positive rate in normal subjects and an even higher false-positive rate in CTS patients.
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M3 - Article
C2 - 18435210
AN - SCOPUS:41449087190
SN - 0301-150X
VL - 48
SP - 67
EP - 74
JO - Electromyography and Clinical Neurophysiology
JF - Electromyography and Clinical Neurophysiology
IS - 2
ER -