Comparative study between physical examination, electroneuromyography and ultrasonography in diagnosing carpal tunnel syndrome
Rev. bras. ortop
; 49(5): 446-451, Sep-Oct/2014. tab
Article
in En
| LILACS
| ID: lil-727693
Responsible library:
BR26.1
ABSTRACT
Objective:
To evaluate the sensitivity of electromyography and ultrasonography in diagnosing carpal tunnel syndrome (CTS), in comparison with physical examination, which is considered to be the gold standard.Methods:
In this cross-sectional study, the medical files of 56 patients with 70 hands affected by CTS who were attended between March 2010 and June 2012 were reviewed. The study included patients with a clinical diagnosis of CTS. The sensitivity of the complementary examinations was analyzed and compared with physical examination.Results:
Nocturnal symptoms were found in 96.4%, thenar atrophy in 62.5% and abnormal sense of touch in 50%. The sensitivities found were ultrasonography, 67.1% (95% CI 55.7%78.6%); an association of physical examination tests, 95.7% (95% CI 90.0%100%); and electromyography, 98.6% (95% CI 95.7%100%). The presence of atrophy, abnormalities of the sense of touch and longer-duration symptoms increased the sensitivity of ultrasonography and physical examination.Conclusion:
The sensitivity of ultrasonography for CTS was lower than that of electromyography and physical examination...RESUMO
Objetivo:
Avaliar a sensibilidade da eletroneuromiografia (ENMG) e da ultrassonografia (USN) no diagnóstico de síndrome do túnel do carpo (STC) comparada com a do exame físico, considerado padrão-ouro.Métodos:
Estudo seccional pela análise de prontuários de 56 pacientes com 70 mãos acometidas com STC entre março de 2010 e junho de 2012. A sensibilidade dos exames complementares foi analisada e comparada com a do exame físico.Resultados:
Constataram-se sintomas noturnos em 96,4%, hipotrofia tenar em 62,5% e alteracão do tato em 50%. A sensibilidade da USG foi de 67,1% (95% IC, 55,7%-78,6%); a da associacão dos testes do exame físico, de 95,7 (95% IC, 90,0%-100%); e a da ENMG, de 98,6% (95% IC, 95,7%-100%). A presenca de hipotrofia, de alteracões no tato e o maior tempo dos sintomas aumentaram a sensibilidade da USG e do exame físico.Conclusão:
A sensibilidade da USG para a STC foi inferior à da ENMG e à do exame físico...Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Carpal Tunnel Syndrome
/
Electromyography
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Rev. bras. ortop
Journal subject:
ORTOPEDIA
Year:
2014
Document type:
Article
Affiliation country:
Brazil
Country of publication:
Brazil