Résumé
A compressão da artéria subclávia no desfiladeiro torácico é um fenômeno amplamente conhecido. Anormalidades ósseas, como a pseudoartrose da clavícula, podem raramente causar compressão arterial a esse nível. A pseudoartrose pode desenvolver-se em decorrência de um trauma, que é a forma mais comum, ou ser congênita. Os autores descrevem o caso de uma paciente de 44 anos com quadro de isquemia crítica de membro superior direito. Apresentava história de fratura não tratada de clavícula direita aos 9 meses de idade que evoluiu com pseudoartrose e compressão extrínseca com oclusão da artéria subclávia. O segmento da clavicula acometido pela pseudoartrose foi ressecado e realizada uma tromboembolectomia tardia das artérias subclávia, braquial e distais, com boa evolução.
Compression of the subclavian artery in the thoracic outlet is a well-known phenomenon. In rare cases, bone abnormalities, such as pseudarthrosis of the clavicle, can cause arterial compression at this level. Pseudarthrosis may develop as a result of trauma, which is the more common form, or it may be congenital. Here, the authors describe the case of a 44-year-old patient with critical ischemia of the right upper limb. She had a history of untreated right clavicle fracture at 9 months of age which had progressed to pseudarthrosis and extrinsic compression of the subclavian artery causing occlusion. The segment of the clavicle involved was resected and late thromboembolectomy of the subclavian, brachial, distal arteries was performed, with good results.
Sujets)
Humains , Femelle , Adulte d'âge moyen , Clavicule/malformations , Pseudarthrose/anatomopathologie , Syndrome du défilé thoracobrachial/imagerie diagnostique , Syndrome du défilé thoracobrachial/rééducation et réadaptation , Membre supérieur/anatomopathologie , Artère subclavière/anatomie et histologie , Facteurs temps , Warfarine/administration et posologieRésumé
Sixty patients were treated by physical therapy for thoracic outlet syndrome [TOS] between 1995 and 1999. Females were predominant [76%] the average age was 34.5 years [I8 to 60]. Risk factors were hypermobility, cervical traumatism and profession. Neurological signs were predominant and positive provocation tests were found Adson [4S%], sonnette [62%], E.A.S.T. [51%]. Thoracic pain inaugurated the symptoms in 3 times pseudo-angina [2], dyspnea [1]. Radiological results were positive for cervical rib [8], apophysomegaly of C7 [25], clavicular traumatism [1]. Electromyogram was positive in 2 out of 3 patients, RMI in 2 of 4, and dynamic echo doppler in 3 of 4. After rehabilitation, immediate results were satisfactory in more than 70% of cases. After six months one patient had recurrence of symptoms, 66% were compliant with treatment, and 84% were satisfied. At one year the symptoms recurred in 2 patients, 15% were still compliant, and 81% were satisfied. Surgery was needed in 4 patients with cervical ribs