BACKGROUND: Thoracic outlet syndrome (TOS) is one of the most controve
rsial symptom complexes in surgery today. Even the existence of TOS is
questioned and where it seems to exist, the incidence varies from one
country to another. Surgery is often considered the primary treatment
; however, the frequency of good results after surgery varies from 24%
to 100%, and in recent years the surgical approach has been questione
d. PATIENTS AND METHODS: In this study 45 patients who had undergone s
urgery for TOS symptoms period of 21 years were examined by an indepen
dent clinician an average of 8 years after the operation. RESULTS: For
ty-three percent of the performed operations were found to have been s
uccessful. Preoperative nocturnal and neck pain were more frequent in
the unsuccessful group; no other preoperative characteristics had a pr
edictive value. Preoperative radiographic and neurophysiologic examina
tions were also not predictive of the outcome. CONCLUSION: It is recom
mended that the feasibility of conservative therapeutic approaches sho
uld be evaluated before undertaking surgery for TOS symptoms.