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      Thoracic Outlet Syndrome 

      Controversies in VTOS: What to Do About the Contralateral Side?

      other
      Springer London

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          A comprehensive review of Paget-Schroetter syndrome.

          Venous thoracic outlet syndrome progressing to the point of axilosubclavian vein thrombosis, variously referred to as Paget-Schroetter syndrome or effort thrombosis, is a classic example of an entity which if treated correctly has minimal long-term sequelae but if ignored is associated with significant long-term morbidity. The subclavian vein is highly vulnerable to injury as it passes by the junction of the first rib and clavicle in the anterior-most part of the thoracic outlet. In addition to extrinsic compression, repetitive forces in this area frequently lead to fixed intrinsic damage and extrinsic scar tissue formation. Once primary thrombosis is recognized, catheter-directed thrombolytic therapy is usually successful if initiated within ten to 14 days of clot formation, but often unmasks an underlying lesion. The vast majority of investigators believe that decompression of the venous thoracic outlet, usually by means of first rib excision, partial anterior scalenectomy, resection of the costoclavicular ligament, and thorough external venolysis, is necessary, although opinion is less uniform as to the need for and method of treatment of the venous lesion itself. Using this algorithm, long-term success rates of 95 to 100% have been reported by many investigators. This review, in addition to discussing the overall treatment algorithm in more detail, attempts to point out controversies that still exist and research directions, both clinical and basic, that need to be pursued. Prospective randomized trials addressing this entity are surprisingly lacking, and although there is consensus based on experience, it may be necessary to step back and rigorously explore several aspects of this entity. Copyright (c) 2010 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved.
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            Surgery remains the most effective treatment for Paget-Schroetter syndrome: 50 years' experience.

            Significant improvements were made in the diagnosis and management of Paget-Schroetter syndrome (thrombosis of the axillary-subclavian vein) secondary to thoracic outlet syndrome during the past 50 years. The diagnosis has often been extremely difficult. Multiple approaches both in diagnosis and therapy have been tried during the years. After recognizing that the underlying pathologic process resulted from an abnormal insertion of the costoclavicular ligament laterally on the first rib, along with hypertrophy of the scalenus anticus muscle, 506 of 626 extremities have been managed by thrombolytic therapy followed by prompt transaxillary resection of the first rib. These patients have been followed up from 1 to 32 years (average of 7.2 years +/- 1.0 standard deviation). Four hundred eighty-six patients (96%) improved. Because the pathophysiology is not well understood, many venograms suggest intraluminal disease rather than external compression. Therefore, attempts at opening the narrowed vein with intraarterial techniques do not work. Use of percutaneous venous angioplasty with stents have all occluded in our experience, making further management difficult. Venous bypass grafts fail because of low venous pressure. Recognition that an abnormal congenital lateral insertion of the costoclavicular ligament on the first rib causes venous occlusion in Paget-Schroetter syndrome has led to acute thrombolysis, followed by prompt first rib resection, as the ideal management.
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              Long-term thrombotic recurrence after nonoperative management of Paget-Schroetter syndrome.

              The purpose of this study was to determine the clinical predictors associated with long-term thrombotic recurrences necessitating surgical intervention after initial success with nonoperative management of patients with primary subclavian vein thrombosis. Sixty-four patients treated for Paget-Schroetter syndrome from 1996 to 2005 at our institution were reviewed. The standardized protocol for treatment includes catheter-directed thrombolysis, a short period of anticoagulation, and selective surgical decompression for patients with persistent symptoms. First-rib resection was performed in 29 patients (45%) within the first 3 months, with a success rate of 93%. The remaining 35 patients (55%) were treated nonoperatively and constitute this study's population. Of the 35 patients with successful nonoperative management, 8 (23%) developed recurrent thrombotic events of the same extremity at a mean follow-up time of 13 months after thrombolysis (range, 6-33 months). These eight patients subsequently underwent first-rib resection with a 100% success rate without further sequelae at a mean follow-up time of 51 months (range, 2-103 months). The other 27 patients remained symptom free at a mean follow-up interval of 55 months (range, 10-110 months). Bivariate analyses determined that the use of a stent during the initial thrombolysis was associated with thrombotic recurrence (P = .05). The recurrence group was also significantly younger than the asymptomatic group (22 vs 36 years; P = .01). Sex, being a competitive athlete, a history of trauma, whether the dominant arm was affected, time of delay to lysis, initial clot burden, response to original lysis, use of adjunctive balloons or mechanical thrombectomy devices, residual stenosis on venography, length of time on warfarin, and patency of the vein on follow-up duplex examination were all characteristics not associated with long-term recurrence after nonoperative management. Conservative nonoperative management of primary subclavian vein thrombosis can be successfully used with acceptable long-term results. A younger age (<28 years old) and the use of a stent during initial thrombolysis are factors associated with long-term recurrent thrombosis. Younger patients should be offered early surgical decompression, and the use of stents without thoracic outlet decompression is not indicated.
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                Book Chapter
                2013
                March 26 2013
                : 537-541
                10.1007/978-1-4471-4366-6_76
                f0f69d14-4d04-4d6f-9f93-05de7f0418a6
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