Effort-related axillosubclavian vein thrombosis. A new theory of pathogenesis and a plea for direct surgical intervention

Venous thoracic outlet syndrome, as a pitfall for cardiac implantable electronic device implantations

The subclavian vein is typically used in cardiovascular implantable electronic device (CIED) implantations. External stress on the subclavian vein can lead to lead-related complications. There are several causes of this stress, such as frequent upper extremity movements or external injury. Venous thoracic outlet syndrome (TOS) can also become the cause of external lead stress. However, the diagnosis of venous TOS can be challenging because subclavian venography can appear normal at first glance. We present a unique case of a device infection in a patient with venous TOS. A careful observation of the imaging studies is vital for diagnosing venous TOS and a leadless pacemaker implantation could be an alternative therapeutic option.

Congenital, Acquired, and Trauma-Related Risk Factors for Thoracic Outlet Syndrome-Review of the Literature

Thoracic outlet syndrome is a group of disorders that affect the upper extremity and neck, resulting in compression of the neurovascular bundle that exits the thoracic outlet. Depending on the type of compressed structure, the arterial, venous, and neurogenic forms of TOS are distinguished. In some populations, e.g., in certain groups of athletes, some sources report incidence rates as high as about 80 cases per 1000 people, while in the general population, it is equal to 2-4 per 1000. Although the pathogenesis of this condition appears relatively simple, there are a very large number of overlapping risk factors that drive such a high incidence in certain risk groups. Undoubtedly, a thorough knowledge of them and their etiology is essential to estimate the risk of TOS or make a quick and accurate diagnosis.

Idiopathic upper extremity deep vein thrombosis: A systematic review

BACKGROUND

Idiopathic upper extremity deep vein thrombosis (UEDVT) management is controversial and ranges from anticoagulation alone to the addition of further interventions such as thrombolysis and decompressive surgery.

OBJECTIVES

The objective of this systematic review was to assess the effects of anticoagulation alone compared to anticoagulation with additional interventions such as thrombolysis or decompressive surgery on the incidence of recurrent UEDVT and post-thrombotic syndrome (PTS) in patients with idiopathic UEDVT (including those associated with the oral contraceptive pill).

PATIENTS/METHODS

A systematic search was conducted for studies which focused on acute UEDVT treatment defined as therapies starting within 4 weeks of symptom onset. We limited studies to those that recruited 10 or more subjects and involved at least 6 weeks to 12 months anticoagulation alone or together with additional interventions with at least 6-month follow-up. Primary outcomes were symptomatic recurrent radiologically confirmed UEDVT and PTS. Secondary outcomes were symptomatic venous thromboembolism, bleeding and mortality.

RESULTS

We found seven studies which reported recurrent UEDVT rates and five that reported PTS rates. All studies were retrospective or cross-sectional. None compared anticoagulation alone to anticoagulation with additional intervention. Study heterogeneity precluded meta-analysis and risk of bias was moderate to serious. Recurrent UEDVT occurred in 0% to 12% post-anticoagulation alone and 0% to 23% post-additional interventions. PTS rates varied from 4% to 32% without severe PTS. Only limited studies reported on our secondary outcomes.

CONCLUSION

There is limited evidence behind idiopathic UEDVT management. Prospective comparative studies in this area are essential.

Incidence of upper extremity deep vein thrombosis in the retrosternal reconstruction after esophagectomy

Background

Upper extremity deep vein thrombosis (UEDVT) is relatively rare but cannot be negligible because it can cause fatal complications. Although it is reported that the occurrence rate of UEDVT has increased due to central venous catheter (CVC), cancer, and surgical invasion, there is still limited information for esophagectomy. The aim of this study was to evaluate the clinical factors, including CVC placement and thromboprophylaxis approach, as well as retrosternal space’s width as a predictive factor for UEDVT in patients receiving esophagectomy.

Methods

This study included 66 patients who underwent esophagectomy with retrosternal reconstruction using a gastric tube. All patients routinely underwent contrast-enhanced computed tomography (CT) on the 4th postoperative day. Low-molecular-weight-heparin (LMWH) was routinely administered by the 2nd postoperative day. To evaluate retrosternal space’s width, (a) The distance from sternum to brachiocephalic artery and (b) the distance from sternum to vertebra were measured by preoperative CT, and the ratio of (a) to (b) was defined as the width of retrosternal space.

Results

Among all patients, 11 (16.7%) suffered from UEDVT, and none was preoperatively received CVC placement, while 7 were inserted in non-UEDVT cases. Retrosternal space’s width in patients with UEDVT was significantly smaller than that in patients without UEDVT (0.17 vs. 0.26; P < 0.0001). A cutoff value of the width was 0.21, which has high sensitivity (87%) and specificity (82%) for UEDVT prediction, respectively.

Conclusion

The existence of CVC may not affect the development of UEDVT, but preoperative evaluation of retrosternal ratio may predict the occurrence of UEDVT.

Venous thoracic outlet syndrome

Venous thoracic outlet syndrome (vTOS) is a spectrum of disease caused by external compression of the subclavian vein as it passes through the costoclavicular space. Paget-Schroetter's Syndrome (PSS) or effort thrombosis is a subtype of vTOS where compression and microtrauma to subclavian vein from repetitive arm movements results in venous thrombosis. PSS or effort thrombosis mostly affects young otherwise healthy active individuals, and this further highlights the importance of this condition. Early diagnosis and aggressive early intervention aimed at complete resolution of acute symptoms and minimizing the risk of recurrence is ultimately important and increases the likelihood of the full restoration of limb function. Several noninvasive imaging techniques are currently available to confirm the initial diagnosis including Doppler ultrasound, contrast-enhanced computed tomography, and magnetic resonance imaging. Following diagnosis, multiple algorithms exist for the management of PSS and almost all require a multidisciplinary approach. Like any other condition involving the thrombosis of deep venous system, initial step in the management is anticoagulation. Catheter-directed therapies (CDT) have also a pivotal role as the initial treatment to resolve the acute thrombosis and establish venous patency. CDT combined with medical anticoagulation and surgical decompression are the components of most treatment algorithms for the management of patients suffering from PSS.

Upper Extremity Deep Vein Thrombosis: Current Knowledge and Future Directions

Upper extremity deep vein thrombosis (UEDVT) has been increasing in incidence due to the escalating use of central venous catheters such as peripherally inserted central catheters. UEDVT can be primary idiopathic or secondary to pacemaker leads, intravascular catheters or cancer. In comparison to conventional venous thromboembolism such as lower limb deep vein thrombosis or pulmonary embolism the risk factors, investigations, and management are not well defined. We review current evidence in primary and secondary UEDVT, highlighting areas in need of further research. We also explore the entity of venous thoracic outlet syndrome, which is said to be a risk factor for recurrent primary UEDVT and is the rationale behind surgical interventions.

Anatomy and Embryology of the Thoracic Outlet

The thoracic outlet is the space between the thorax and axilla through which the subclavian vein, subclavian artery, and brachial plexus travel from their central origins to their peripheral termini. Its bounds include the clavicle, first thoracic rib, insertion of the pectoralis minor muscle onto the coracoid process of the humerus, and the sternum. It contains three areas: the scalene triangle, the costoclavicular space, and the subcoracoid or pectoralis minor space. Aberrant anatomy is common in the thoracic outlet and may predispose patients to compression of the neurovascular bundle and development of clinical thoracic outlet syndrome (TOS). Much of this aberrancy is explained by the embryologic origins of the structures that comprise the thoracic outlet. A thorough understanding of this anatomy and embryology is therefore critical to the understanding of TOS.

Paget-Schroetter Syndrome in a Young Female

Paget-Schroetter syndrome or effort thrombosis is a relatively rare primary spontaneous thrombosis of upper extremity deep veins secondary to entrapment of axillary subclavian veins from an abnormality of the thoracic outlet. It is commonly seen in young adults who lift heavy weights or strenuous use of the upper extremities during athletic activities. Repetitive microtrauma to the subclavian vein secondary to narrow costoclavicular space and strenuous activities leads to intimal layer inflammation, hypertrophy, fibrosis, and coagulation cascade activation. Management of Paget-Schroetter syndrome differs from the venous thrombosis of the lower extremity as treatment includes anticoagulation, thrombolysis, and surgical decompression. Early recognition and timely management are required to prevent significant disability from post-thrombotic syndrome and long-term morbidity from recurrent thromboembolism and pulmonary embolism. Internists and emergency physicians should be aware of the disease's presentation, treatment options, and early referral to vascular surgeons since prompt initiation of appropriate treatment will have better outcomes than delayed treatment. We discussed a case of a 31-year-old female who lifts heavyweight at work, presented with right arm swelling and pain for 2 weeks, and diagnosed with axillary subclavian vein thrombosis secondary to thoracic outlet obstruction. She received a high-dose heparin drip followed by catheter-directed thrombolysis and underwent surgical decompression of axillary subclavian vein via resection of the first rib, subclavius muscle resection, partial anterior scalenectomy, and venolysis. In our review of the literature, randomized controlled studies lack the efficacy and safety of surgical decompression. However, the results are promising based on accumulated experience from vascular surgery experts and small case series. Extensive studies are needed further to delineate the protocol for the management of Paget-Schroetter syndrome.

Surgical management of post-thrombotic syndrome in chronic venous thoracic outlet syndrome

OBJECTIVE

Venous thoracic outlet syndrome (VTOS) is considered chronic when symptoms and venous stenosis or occlusion are present for >3 months after the initial primary upper extremity deep vein thrombosis event. Many of patients with chronic VTOS receive conservative treatment. However, a subset of these patients will have persistent post-thrombotic syndrome symptoms because of underlying causative anatomy. We present the results of a same admission treatment consisting of' transaxillary thoracic outlet decompression (TA-TOD), external venolysis, and, if necessary, treatment of residual intraluminal lesions with percutaneous transluminal angioplasty (PTA) for chronic VTOS.

METHODS

All patients presenting from January 2015 to December 2019 with chronic VTOS and post-thrombotic syndrome complaints were evaluated. Patients with some degree of patency on venography or a chronic occlusion that could be recanalized using PTA preoperatively underwent TA-TOD, external venolysis, and immediate venography. Low-pressure diagnostic balloon inflation after first rib resection was used to identify residual lesions not evident by venography. If found, PTA was performed. Stent placement was reserved for patients with recurrent complaints due to residual lesions that had not been effectively treated by PTA.

RESULTS

A total of 40 patients with chronic VTOS were evaluated, of whom 36 were included and treated according to the protocol. The remaining four patients had had a chronic occlusion that could not be recanalized preoperatively and these patients were, therefore, excluded. After TA-TOD, immediate venography showed patent vessels with residual stenosis in 31 patients. Of the five patients who had appeared to have no significant stenosis on venography, two showed narrowing with diagnostic balloon inflation of the subclavian vein, for a total of 33 patients (92%) with residual stenosis after TA-TOD. All 33 patients underwent formal venous PTA. Complications occurred in five patients. At a mean follow-up of 24 months, 30 of the 36 patients (83%) were free of symptoms. The mean thoracic outlet syndrome disability scale score was 1.97 ± 1.9. The mean Disability of the Arm Shoulder and Hand scale score was 16.16 ± 17.4. The median VEINES (venous insufficiency epidemiologic and economic study)-symptoms score was 53.90 (interquartile range, 10.54). The median VEINES-quality of life (QOL) score was 54.22 (interquartile range, 13.93). Finally, the mean 12-item short-form physical QOL component scale score was 47.97 ± 9.02. The thoracic outlet syndrome disability scale and Disability of the Arm Shoulder and Hand scale scores had significantly decreased (P < .01), and the 12-item short-form physical QOL component scale score had significantly improved (P < .01) compared with the baseline scores. A return to daily activities was achieved by 93% of the patients.

CONCLUSIONS

The treatment of patients with chronic VTOS using a same admission treatment algorithm consisting of TA-TOD, external venolysis, and PTA is effective. Intermediate follow-up showed a high return to daily activity and significant improvement in functional outcome and physical QOL.

Paget-Schroetter syndrome: A contemporary review of the controversies in management

Aim

To assess the current evidence, controversies and technologies behind the various approaches and steps in the management of Paget-Schroetter syndrome.

Materials and methods

We performed a narrative review based on a literature search in Embase, Medline, Pubmed and Google Scholar through keyword searching related to upper extremity deep vein thrombosis, Paget-Schroetter syndrome and venous thoracic outlet syndrome.

Results

There is a paucity of high-quality evidence assessing the efficacy of contemporary approaches for the management of acute upper extremity deep vein thrombosis which, though promising, is largely limited to single institution case studies and small series. As a result, a formal systematic review could not be performed.

Conclusions

Paget-Schroetter syndrome is a rare condition, whose management approaches are largely guided by the accumulated expertise and clinical experience of vascular specialists. In the absence of randomized controlled trials, current practice has been guided by retrospective reviews and experience. Modern approaches and protocols appear to remain distinct between health care facilities, but have common features including early clot lysis, surgical decompression with first rib resection, followed by adjunctive open or endovascular procedures. Further high-quality level 1 evidence and research are required in order to standardize treatment for this condition.

Aspiration thrombectomy for the management of acute deep venous thrombosis in the setting of venous thoracic outlet syndrome

Objectives

Venous thoracic outlet syndrome, known by the eponym Paget–Schroetter syndrome, is seen in healthy, young individuals with “effort-induced thrombosis.” Endovascular therapies, including catheter-directed thrombolysis, have been described in the acute management of the upper extremity deep venous thrombosis; however, we assessed the technical success of treating this entity using a mechanical aspiration thrombectomy system.

Methods

This was a multi-center retrospective review of patients with venous thoracic outlet syndrome with acute thrombosis treated with the Indigo continuous aspiration mechanical thrombectomy system. Charts from patients with venous thoracic outlet syndrome and acute deep venous thrombosis treated with this system at our institution along with three data sharing locations were reviewed for demographics, deep venous thrombosis risk factors, imaging modalities used for diagnosis, extent of axillosubclavian deep venous thrombosis, treatment details, adjunctive therapies, and complications. The primary outcome was technical success (resolution of >70% of thrombus).

Results

There were 16 patients (50% male) with a mean age of 33 years (range 17–69 years). Six patients had underlying venous thromboembolism risk factors including use of contraceptives ( n = 2), prior deep venous thrombosis ( n = 3), and known thrombophilia ( n = 1). Fifteen patients had complete venous occlusion, and the extent of venous involvement included subclavian ( n = 14), axillary ( n = 16), and brachial ( n = 7). The majority (81.25%) of patients were treated in a single setting, and technical success was achieved in all cases with the use of adjunctive therapies. Only three patients required additional overnight thrombolytic therapy.

Conclusions

The Penumbra Indigo system, often in combination with adjunctive catheter-directed thrombolysis and venoplasty, is a safe and effective device for the treatment of acute upper extremity deep venous thrombosis in the setting of Paget–Schroetter syndrome. No patients experienced central embolization or post-operative renal insufficiency. One-third of patients avoided any additional catheter-directed thrombolysis exposure, and technical success was achieved in all cases. A single bleeding complication was observed in a patient undergoing overnight adjunctive catheter-directed thrombolysis. All patients maintained patency until time of first rib resection.

Infraclavicular Thoracic Outlet Decompression Compared to Supraclavicular Thoracic Outlet Decompression for the Management of Venous Thoracic Outlet Syndrome

BACKGROUND

The treatment of venous thoracic outlet syndrome (VTOS) requires surgical decompression often combined with catheter-directed thrombolysis and venoplasty. Surgical options include transaxillary, supraclavicular, or infraclavicular approaches to first rib resection. The optimal method, however, has yet to be defined. The purpose of this study is to compare the outcomes of patients who underwent infraclavicular versus supraclavicular surgical decompression for VTOS.

METHODS

A retrospective review of patients who underwent surgical management for VTOS from December 2010 to November 2017 was performed. During the study period, supraclavicular and infraclavicular approaches were chosen according to surgeon preference. Patient demographics, pre- and postdecompression interventions, perioperative outcomes for each group of patients were analyzed.

RESULTS

Thirty patients underwent surgical management of VTOS, of which 15 (50%) underwent infraclavicular decompression and 15 (50%) supraclavicular decompression. The mean age of patients was 32.1 ± 13.6 years and 80% were male. Twenty-six patients (86.7%) presented with thrombotic VTOS. Acute axillosubclavian vein thrombosis was present in 20 (76.9%) of these patients, 10 patients in each group. Subacute or chronic thrombosis was encountered in the remaining 6 (23%) patients, 2 patients in the infraclavicular group and 4 patients in the supraclavicular group. Preoperative thrombolysis was utilized in 7 (46.7%) and 6 (40%) patients in the infraclavicular and supraclavicular groups, respectively (P = 1.00). Patients without postdecompression venography were removed from analysis and included 1 patient in the infraclavicular group and 5 patients in the supraclavicular group. Initial postdecompression venogram, prior to any endovascular intervention, demonstrated a residual axillosubclavian vein stenosis of greater than 50% in 6 (42.9%) patients in the infraclavicular decompression group and 7 (70%) patients in the supraclavicular decompression group (P = 0.24). Crossing the stenosis after surgical decompression was more easily accomplished in the infraclavicular group, 14 (100%) versus 5 (50%), (P = 0.01). Following endovascular venoplasty, calculated residual stenosis greater than 50% was found in 0 (0%) and 3 (30%) patients in the infraclavicular and supraclavicular approaches, respectively (P = 0.047). Infraclavicular thoracic outlet decompression was associated with fewer patients with postoperative symptoms, 0 of 15 (0%) versus 8 of 15 (53.3%), (P = 0.0022), and infraclavicular thoracic outlet decompression demonstrated improved patency, 15 of 15 (100%) versus 8 of 15 (53.3%), (P = 0.028) at a mean combined follow-up of 8.47 ± 10.8 months.

CONCLUSIONS

Infraclavicular thoracic outlet decompression for the surgical management of VTOS was associated with fewer postoperative symptoms and improved axillosubclavian vein patency compared to the supraclavicular approach. Prospective analysis is warranted to determine long-term outcomes following infraclavicular decompression.

Early outcomes using dedicated venous stents in the upper limb of patients with venous thoracic outlet syndrome: A single centre experience

INTRODUCTION

Surgical management of Venous Thoracic Outlet Syndrome (vTOS) is based upon resection of the first rib. The optimal method to treat any residual venous scarring however remains unclear. The purpose of this study was to evaluate a single quaternary centre's early and mid-term outcomes following endovascular reconstruction of the axillo-subclavian vein using dedicated venous stents in patients with VTOS.

METHODOLOGY

A retrospective analysis of patients at Royal Prince Alfred Hospital, who underwent upper limb deep venous stenting as an adjunct in the treatment of vTOS was performed. All patients between 2012 and 2017 were included. Stent patency was assessed with duplex ultrasonography. All re-interventions and their indications were recorded.

RESULTS

A total of 24 limbs in 21 patients (13 female, median age 44 yrs) were treated with dedicated venous stents between 2012 and 2017. All patients had resection of their first rib using a transaxillary approach. Nine patients initially presented with an acute DVT and underwent thrombolysis. In three of these patients a venous stent was placed before rib resection following completion of lysis. In the remainder, the median time for stent placement following surgery was 64 days. Median follow-up from stent insertion was 50 months. Primary, primary-assisted and secondary patency at 24 months was 55%, 95% and 100% respectively with one patient lost during follow-up. There were no major complications. A total of 14 re-interventions were performed on these patients. Three patients reported residual symptoms following stenting including heaviness (n = 1), bluish discolouration (n = 1) and prominent veins on the chest (n = 1) with the remainder asymptomatic.

CONCLUSION

In this single centre study, endovascular reconstruction using dedicated venous stents appears to be an effective and safe method to reconstruct a damaged subclavian vein following rib resection in patients with vTOS.

Upper deep venous thrombosis secondary to biceps brachii tear: A clinical case

We describe an unusual case of axillary vein thrombosis after extensive muscular and fibrillar rupture of the long tendon of the right biceps brachii in a 43-year-old patient after an effort. The difficult diagnosis of this condition requires high suspicion and early treatment.

Impact of Venous Collaterals on Clinical Outcomes in Paget-Schroetter Syndrome

PURPOSE

To characterize the degree of venous collateralization before and after endovascular therapy and determine the effect of collateralization on success of thrombolysis and rate of repeat intervention in patients with Paget-Schroetter syndrome.

MATERIALS AND METHODS

A single-center retrospective study of 37 extremities in 36 patients (mean age, 32.64 y; range, 15-72 y; 24 men) with PSS treated with endovascular therapy from 2007 through 2017 was conducted. Venograms at presentation, after lysis, postoperatively, and at each repeat intervention were graded for venous stenosis, thrombus burden, and collateralization on a 5-point scale. Collateralization was classified as high-grade (9 extremities) or low-grade (28 extremities) based on grading of the venograms at presentation.

RESULTS

Primary technical success rate for endovascular treatment was 100%. Eighty-six percent of patients (32 of 37) underwent thrombolysis, 91% (34 of 37) underwent mechanical thrombectomy, and 83% (30 of 37) underwent balloon angioplasty. Overall primary patency rate was 50% at 12 months. The repeat intervention rate within 12 months was significantly higher for extremities with high- vs low-grade collateralization (89% vs 43%; P = .016). There was a significant decrease in the median grade of collateral severity after initial intervention (2 vs 1; P = .044) and 1 day postoperatively (2 vs 1; P = .040) vs the venogram at presentation.

CONCLUSIONS

Severity of venous collateralization on the venogram at presentation of patients with PSS does not appear to affect success of endovascular therapy but may predict long-term patency of affected extremities. Patients in this cohort with severe collateralization on presentation were more likely to need repeat intervention.

Effort Thrombosis Provoked by Saxophone Performance

BACKGROUND

Internal jugular venous thrombosis (IJVT) is an uncommon condition rarely diagnosed in the outpatient setting. IJVT carries significant morbidity and mortality and must be considered in the differential diagnosis for new-onset neck pain and swelling, especially in the emergency setting. Paget-Schroetter syndrome (PSS), or primary thrombosis secondary to effort, is an uncommon, likely under-recognized etiology of thrombosis. We report a case of PSS extending from the right subclavian vein into the right internal jugular vein, suspected based upon patient history and physical examination and confirmed by point-of-care ultrasound (POCUS). We then review the presentation, causes, and diagnostic standards for PSS.

CASE REPORT

We present a case of a 79-year-old man who presented to the Emergency Department with acute right-sided neck pain 1 day after playing the saxophone for 4 h the prior evening. POCUS confirmed Paget-Schroetter syndrome, or primary effort thrombosis of the internal jugular vein. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: To our knowledge, this is the first documented case of PSS resulting from venous stasis with prolonged Valsalva maneuver and vascular trauma with activity of playing the saxophone. The significance of this case is the unusual etiology of a rare presentation and the ability to diagnose this condition quickly and accurately with POCUS.

Paget-Schroetter syndrome: treatment of venous thrombosis and outcomes

Thoracic outlet syndrome (TOS) is a rare clinical entity with many etiologies. Venous thoracic outlet syndrome (VTOS), also called Paget-Schroetter syndrome (PSS), is a primary "effort" thrombosis. Here we will focus on the pathophysiology, anatomy, clinical presentation, treatments, and outcomes of VTOS. Treatment involves anticoagulation, catheter-directed thrombolysis, and surgical decompression. Early diagnosis and treatment can improve symptoms and quality of life.

Recurrent Upper Extremity Thrombosis Associated with Overactivity: A Case of Delayed Diagnosis of Paget-Schroetter Syndrome

Paget-Schroetter syndrome is thrombosis of the axillary-subclavian vein that is associated with strenuous and repetitive activity of the upper extremities. Overuse of the arm coupled with external compression results in microtrauma in the intima of the subclavian vein, resulting in the activation of the coagulation cascade. Diagnosis is usually made by Doppler ultrasound and the treatment involves thrombolysis, while routine surgical decompression of the thoracic outlet is controversial. In this report, we present a case of a patient who presented with a second episode of spontaneous right upper extremity deep venous thrombosis. The first episode was inadequately treated with oral anticoagulation alone. During the second episode, Paget-Schroetter syndrome was diagnosed, after careful review of his occupational history. He subsequently underwent angioplasty and decompression of thoracic outlet with no recurrence of thrombosis in a 12-month follow-up period.

Operative Technique of First Rib Resection Via Subclavicular Approach

A subclavicular approach to the first rib for resection in cases of subclavian vein thrombosis or chronic obstruction is described. The steps of the surgical procedure are described. The technique is ideally suited for emergency care of Paget-Schroetter syndrome patients.

Long-Term Results of Local Thrombolysis Followed by First Rib Resection: An Encouraging Clinical Experience in Treatment of Subclavian Vein Thrombosis

The purpose of this study was to present the long-term results of our experience, which includes thrombolysis, surgical decompression, and long-term anticoagulation. The medical records of 24 patients who were admitted to Academic Hospital Vrije Universiteit, Amsterdam, the Netherlands, between January 1983 and October 1997, with effort thrombosis of the subclavian vein were reviewed. There were 21 men and 3 women, with a mean age of 30.5 years and an average duration of the symptoms of 2.9 days. Clinical diagnosis was confirmed by phlebography and duplex in all patients. A loading dose of 10,000 units streptokinase was given followed by an infusion at a rate of 10,000 units per hour. Phlebography was repeated daily in order to evaluate the effect of the treatment. Thrombolysis was achieved in 2 to 8 days (mean 5 days). After achievement of complete thrombolysis, anticoagulation with heparin and coumarin derivatives was started; the latter were continued for 3 months.

Six to 12 weeks after the thrombolysis, patients with costoclavicular compression syndrome underwent surgery. A transaxillary first rib resection, partial scalenotomy, and transection of the tendon of subclavian muscle were performed. Thrombolysis was achieved in all patients but one, with a successful lysis percentage of 95.8%. In one patient, the local streptokinase therapy had to be discontinued because of pulmonary embolism. Resection of the first rib was performed on 19 patients. Two patients refused to be operated on. The other three were lost to follow-up, right after the thrombolytic therapy. In long-term evaluation, all the patients who underwent first rib resection were symptom free, whereas the two patients who refused to be operated on had pain and discoloration of the affected arm, although venous patency was achieved.

The subclavian vein thrombosis occurs as a result of repetitive trauma due to anatomic constriction of the vein by the clavicle and the first rib complex. Therefore, we advise addressing the therapy not only to the superimposed thrombus but also to the correction of the underlying anatomic abnormality.

An Integrative Review of Outcomes in Patients with Acute Primary Upper Extremity Deep Venous Thrombosis Following No Treatment or Treatment with Anticoagulation, Thrombolysis, or Surgical Algorithms

Primary upper extremity deep venous thrombosis (UEDVT) is a rare condition that typically affects young patients and can cause considerable long-term morbidity. Proposed treatments have included rest, heat, elevation of the affected limb, anticoagulation, thrombolysis, surgical decompression, percutaneous transluminal angioplasty (PTA), and stenting. However, the optimal management of primary UEDVT remains controversial. This study was an integrative review of the English-language literature since 1965 on primary UEDVT, with comparison of long-term symptoms, rethrombosis, and pulmonary embolism in 4 treatment algorithms: rest, heat, and elevation alone; anticoagulation alone; surgical decompression without thrombolysis; and algorithms including thrombolysis. Forty-one studies describing 559 patients met the criteria for inclusion. Statistically significant differences were found among the 4 treatment algorithms in the incidence of residual symptoms (p< 0.000), the incidence of pulmonary embolism (p<0.000), and the incidence of rethrombosis (p<0.027). Residual symptoms and the severity of residual symptoms were greatest in the rest, heat, and elevation algorithm (74%), followed by the surgical (60%), anticoagulation (44%), and thrombolysis (22%) algorithms. Pulmonary embolism was also greatest in the rest, heat, and elevation algorithm (12%), followed by the anticoagulation (7%), thrombolysis (1%), and surgical algorithms (0%), while rethrombosis was greatest in the thrombolytic algorithm (7%) followed by the surgical (3%), anticoagulation (2%), and rest, heat, and elevation (0%) algorithms. These results support the current clinical practice of a staged, multidisciplinary approach to treatment of primary UEDVT that includes thrombolytic therapy and possible surgical decompression. Further studies are needed to evaluate the natural history of patients treated with thrombolysis alone, to assess the optimal timing of surgical decompression, and to determine the best use of PTA and stenting in the multidisciplinary approach.

Paget-Schroetter syndrome after a dental procedure in a patient with factor V Leiden (R506Q) heterozygosity

: Paget-Schroetter syndrome or effort thrombosis is characterized by spontaneous thrombosis of the upper extremity venous system, commonly seen in a young healthy patient after repetitive use of the upper extremities. It is rarely associated with coagulopathy and thus, hypercoagulable work-up is not usually a part of the investigation. We present a first case of a young woman, who was diagnosed with left upper extremity effort thrombosis following a dental procedure. Interestingly, she was also noted to be heterozygous for factor V Leiden mutation.

Utilization of venous duplex scanning and postoperative venography in patients with subclavian vein thrombosis

OBJECTIVE

The purpose of this study was to review preoperative and postoperative duplex scans and postoperative venograms in patients with subclavian vein thrombosis who underwent first rib resection and scalenectomy (FRRS) during 2005 to 2013.

METHODS

Preoperative venous duplex scans revealed no compression (NC), venous compression (VC, ≥ 50% decrease in velocity on abduction), venous ablation (VA, 0 velocity on abduction), and acute thrombus (AT, 0 velocity on abduction and adduction). Correlation with 2-week postoperative venograms (open, stenosis requiring dilation, or occluded) and postoperative (2- to 4-month, 6- to 8-month, and 12-month) duplex scans was performed.

RESULTS

Of 215 patients treated with FRRS for effort thrombosis, 140 had an ipsilateral preoperative duplex scan and postoperative venogram. Twenty-nine patients (21%) had VC, 70 (50%) had VA, 8 (5.7%) had AT, and 33 (24%) had NC. Patients with preoperative NC or VC were more likely to have an open vein on venography (P = .014). Six to 8 months after FRRS, patients with preoperative VA were more likely to have compression or ablation (P = .009); no difference was seen at 1 year. Patency rates at last follow-up were 100% in the preoperative VC and AT groups, 96% in those with VA, and 94% in patients with no preoperative compression. The 128 preoperative scans of the asymptomatic side revealed that 67 patients (52%) had NC, 29 (23%) had VC, 32 (25%) had VA, and 0 had AT. Patients with NC (P = .027), VC (P = .017), or VA (P = .008) were significantly more likely to have the same result on the opposite side.

CONCLUSIONS

Postoperative duplex scans reveal that VC and VA resolve during the year after FRRS, obviating the need for repeated venography or intervention. Patency rates are excellent in all patients when postoperative venography directs intervention. Patients with NC, VC, or VA on preoperative scans often show the same result on the opposite side.

Venous thoracic outlet syndrome

Venous thoracic outlet syndrome is a complex but rare disease that often can have excellent outcomes if quickly recognized and treated. The syndrome results from compression of the subclavian vein along its exit from the thoracic cavity and frequently affects young otherwise healthy patients. Modern diagnosis is made with a combination of clinical exam, appropriate non-invasive imaging, and, finally, contrast venography, which can be both diagnostic and therapeutic. Treatments have evolved over time to the point where patients can undergo less extensive procedures than previously performed and still maintain excellent outcomes. One of the most important predictors of outcome is the initiation of treatment within 14 days of symptoms. Hence, the importance of the accurate and prompt diagnosis of this syndrome in patients with an upper-extremity deep vein thrombotic episode cannot be further underscored. This review is a concise summary of the background and treatment algorithm for this patient population.

Paget-Schroetter syndrome: A review and Algorithm (WASPS-IR)

Venous compression syndromes are rare and occur due to the entrapment of vein(s) in confined anatomical spaces bounded by osseous and non-osseous structures. Here we present a review of Paget-Schroetter Syndrome, an important cause of upper extremity of deep vein thrombosis, its associated clinical and radiological findings as well as treatment options.

Acute Pulmonary Embolism due to Paget-Schroetter Syndrome

A 17-year-old Japanese male athlete presented to the emergency department at our hospital with a chief complaint of exertional dyspnea. Although there were no significant findings in the right and left upper extremities on a physical examination, a chest computed tomography scan showed bilateral multiple thrombosis in the pulmonary arteries, indicating pulmonary thromboembolism, and deep vein thrombosis in the left subclavian vein. Upper limb venography showed interruption of the left subclavian vein (so-called Paget-Schroetter syndrome; PSS). We herein report this rare case of PSS that led to pulmonary thromboembolism in a young, male field athlete.

Paget-schroetter syndrome: a review of effort thrombosis of the upper extremity from a sports medicine perspective

Paget-Schroetter is a rare diagnosis in the general population; however, it is more common in younger, physically active individuals. Clinicians must be familiar with the symptoms, physical examination, and initial imaging and treatment to expedite care and prevent possible life-threatening complications. Urgent referral to a regional specialist may improve the opportunity for thrombolysis to restore blood flow through the subclavian vein and to decrease the chance of pulmonary embolus, recurrent thrombosis, or need for vein grafting, as well as to improve the time to return to full activity (athletics and/or manual labor).

Claviculectomy with thrombectomy for management of paget-schroetter syndrome in a patient with chronic clavicular malunion

Paget-Schroetter syndrome, or primary upper extremity deep vein thrombosis, is a relatively rare condition for which various treatment protocols have been proposed. No randomized controlled trials exist to guide management, and treatment must be tailored to the individual. This report describes a case of a 39-year-old man with chronic clavicular malunion from multiple clavicular fractures who presented with Paget-Schroetter syndrome. The thrombus occluded the right axillary, brachial, and subclavian veins. Attempted thrombolytic therapy was unsuccessful, and decompressive surgery was used to avoid postphlebitic complications and regain functionality of the upper extremity. Rather than first rib resection, claviculectomy with thrombectomy and subclavian vein repair was performed.

Comprehensive management of subclavian vein effort thrombosis

Subclavian vein (SCV) effort thrombosis, also known as the Paget-Schroetter syndrome, is a relatively uncommon condition that affects young, active, otherwise healthy individuals. It is considered a form of thoracic outlet syndrome, arising as a consequence of compression and repetitive injury of the SCV between the first rib and the overlying clavicle, as well as the anterior scalene muscle, subclavius muscle, and costoclavicular ligament. Effort thrombosis is distinct from other forms of deep vein thrombosis with respect to pathophysiology, clinical presentation, and functional consequences, and it requires treatment considerations unique to effective management of thoracic outlet compression as well as the obstructed SCV. In this review the comprehensive management of SCV effort thrombosis is addressed, with an emphasis on current interventional radiology techniques used in conjunction with definitive surgical treatment, based on early catheter-based venography, thrombolytic therapy, and prompt paraclavicular thoracic outlet decompression with direct SCV reconstruction.

Aggressive treatment of idiopathic axillo-subclavian vein thrombosis provides excellent long-term function

OBJECTIVE

While much attention has been devoted toward treatment paradigms for idiopathic axillo-subclavian vein thrombosis (ASVT), little has focused on long-term durability of aggressive treatment and its associated functional outcomes. The purpose of this study was to review our own surgical therapeutic algorithm and its associated durability and functional outcomes.

METHODS

All patients treated with combined endovascular and open surgery at Dartmouth-Hitchcock Medical Center for ASVT from 1988 to 2008 were identified. Patient demographics, comorbidities, and operative techniques were recorded. Patency, freedom from reintervention, and functional outcomes were documented. Follow-up via telephone and clinic visit allowed quantitative comparison of functional status, pre- and postoperatively.

RESULTS

Thirty-six patients were treated for ASVT throughout the study interval. Seven patients (19.4%) were lost to follow-up. Most patients were male (66%; N = 24); mean age was 32 years. Catheter-directed thrombolysis was utilized in the majority of patients (83.3%; N = 30) with an average time from symptom onset to lysis of 12 days. Surgical decompression was undertaken in all patients via transaxillary (52%; N = 19), supraclavicular (31%; N = 11), or infraclavicular approaches (17%; N = 6). Eleven stents were placed in 11 patients (30.5%) for residual stenotic disease. Mean follow-up was 65 months, with 1- and 5-year overall patency at 100% and 94%, respectively. Freedom from reintervention was 100% and 74.4% at 1 and 5 years, respectively. Seven patients (19.4%) required postoperative reintervention with four receiving additional lytic therapy, two requiring a stent, and one venoplasty. At presentation, 65.5% (N = 19) of patients were unable to work or perform routine activities. After treatment, 86% (N = 25) returned to their employment and have experienced sustained symptomatic and functional improvement.

CONCLUSIONS

Patients with symptomatic idiopathic axillo-subclavian vein thrombosis can expect durable patency with sustained freedom from reintervention following aggressive combined endovascular and surgical treatment. Good functional outcomes can be expected in patients with relief of symptoms and return to work.

Multiple treatment algorithms for successful outcomes in venous thoracic outlet syndrome

BACKGROUND

We sought to determine the outcomes in patients presenting with venous thoracic outlet syndrome.

METHODS

Prospectively collected data from 67 patients between October 2003 and December 2007. The average age was 31 years (range, 16-54); the 37 males and 30 females presented on average 9.2 months (range, 1 month-6 years) after acute thrombosis. Four treatment algorithms were utilized.

RESULTS

In group 1, 3 patients presented with acute occlusion and received tissue plasminogen activator (tPA) and immediate first rib resection with scalenectomy (FRRS). One vein rethrombosed and was treated by intravenous tPA postoperatively. In group 2, 39 patients presented with stenotic subclavian veins an average of 22 weeks after their initial thrombosis, all of whom underwent FRRS followed by a venogram 2 weeks postoperatively: 25 had a tight stenosis and underwent venoplasty with anticoagulation; 13 had patent, nonstenotic subclavian veins, and 1 patient required tPA and venoplasty owing to rethrombosis. Two patients had their subclavian vein thrombose after venoplasty and were treated with anticoagulation, tPA, and venoplasty. In group 3, 11 patients presented with intermittent venous obstruction without thrombosis and underwent FRRS; 3 underwent venograms because of concerns of residual stenosis, 2 of whom required venoplasty postoperatively. Finally, in group 4, 14 patients presented with occluded subclavian veins and underwent FRRS with long-term anticoagulation. Eleven have recanalized at an average of 6 months (range, 2-12).

CONCLUSION

Overall, 64 of 67 patients have patent subclavian veins after a median follow-up of 10 months, and all patients are asymptomatic for a success rate of 96%. Tailored treatment algorithms including FRRS, postoperative venograms with or without intervention, and the use of long-term anticoagulation seems to be required in this complicated group of young patients to achieve optimal results.

Protocols for Paget-Schroetter syndrome and late treatment of chronic subclavian vein obstruction

BACKGROUND

Paget-Schroetter syndrome is a serious condition that if not treated promptly and properly leads to severe sequelae and permanent disability. In its late stage, chronic fibrous obliteration of the vein is rarely amenable to surgical treatment, except in very few select cases.

METHODS

We treated 126 Paget-Schroetter syndrome patients (group I) by implementing an emergency protocol of thrombolysis by catheter-directed infusion, followed by immediate surgery through an anterior subclavian approach entailing (1) decompression of the thoracic inlet and (2) repairing the vein with a vein patch to reestablish its normal caliber. In addition, we treated another selective group of 81 patients (group II) for chronic fibrotic obstruction several months after their original event, but only when the inflow was adequate.

RESULTS

Our acute emergency care resulted in a 100% long-term patency rate in group I, with no sequelae. The patency rate in group II was 100% as well, but in 74% a long vein patch, endovascular stents, or homograft implants were used.

CONCLUSIONS

Implementation of an emergency approach to treat Paget-Schroetter syndrome is highly recommended to prevent the delayed sequelae of permanent subclavian vein obliteration and disability. In chronic obstruction, when feasible, we recommend a long saphenous vein patch, followed by endovascular stent implant.

Upper extremity venous Doppler ultrasound

Ultrasound is the initial imaging modality of choice when evaluating the upper extremity venous system. When sonographic findings are equivocal or nondiagnostic, particularly in evaluating the central deep veins, MR venography or catheter venography correlation may be helpful. Ultrasound provides an accurate, rapid, low-cost, portable, noninvasive method for screening, mapping, and surveillance of the upper extremity venous system.

Surgery remains the most effective treatment for Paget-Schroetter syndrome: 50 years' experience

BACKGROUND

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.

METHODS

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).

RESULTS

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.

CONCLUSIONS

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.

Paget-Schroetter syndrome treated with thrombolytics and immediate surgery

INTRODUCTION

Reviewed are the results of the emergent treatment of effort thrombosis of the subclavian vein. The protocol calls for immediate thrombolysis, followed by surgery at the time of the acute event. The one-stage procedure includes decompression of the thoracic inlet by subclavicular removal of the first rib, subclavius muscle, scalenectomy, and vein patch plasty of the stenotic segment of the vein.

METHODS

Between July 1985 through June 2006, 114 patients presented with Paget-Schroetter syndrome (effort thrombosis of the subclavian vein), 97 of which (group I) were seen < or =2 weeks of onset of symptoms. They underwent an emergent protocol treatment in which thrombolysis is immediately followed by surgery at the time of the acute event. In addition, another 17 patients (group II) were referred to our institution after being treated elsewhere with initial thrombolysis, but with surgery deferred a mean 34 days (range, 2 weeks to 3 months) after the initial event. All patients underwent the same lytic and surgical protocol. Operability was determined by the findings on the venogram. Routine postoperative anticoagulation for 8 weeks was implemented with warfarin and clopidogrel.

RESULTS

There was 100% success in re-establishing the flow and normal caliber of the subclavian vein in the 97 patients in group I. Seven patients showed some residual stenosis that required balloon plasty and implant of a stent. Postoperative duplex ultrasound imaging documented patency in all 97 patients (100%). The 17 patients with delayed surgery (group II) showed progression of the fibrosis, with vein obstruction in 12 (70%). Only five patients (29%) were operable with successful results. The remaining 12 patients were inoperable owing to extensive fibrosis and occlusion of the inflow, and all 12 have remained disabled for the use of their arm.

CONCLUSIONS

The emergent approach to treat Paget-Schroetter syndrome seems to render the optimal results, with 100% effectiveness in re-establishing venous flow and normal caliber to the vessel. When properly conducted, this operation avoids the use of stents or balloon plasty with excellent long-term results, leaving the patients unrestricted for physical activities.

Paget-Schroetter syndrome and pulmonary thromboembolism: clinical follow-up over 5 years

A scaffold constructor lost consciousness at work, leading to emergency admission to our hospital. He had noted gradual worsening of exertional dyspnea over the previous 1 month. Chest radiography showed localized oligemia and enlarged hilar vessels. Pulmonary perfusion scintigraphy confirmed the existence of multiple perfusion defects, so a diagnosis of pulmonary thromboembolism was made. Upper and lower limb venography disclosed interruption of the right subclavian vein (so-called Paget-Schroetter syndrome). However, there was no difference in appearance between the right and left upper extremities. Five years after starting anticoagulant therapy, his symptoms have resolved, but serial perfusion scintigraphy and upper extremity venography revealed the persistence of abnormalities. In patients with pulmonary thromboembolism, lifestyle factors (especially heavy manual labor) should be considered and the possibility of subclavian vein thrombosis should be kept in mind.

Paget-Schroetter syndrome therapy: failure of intravenous stents

BACKGROUND

The purpose of this study is to show that intravenous stents (IS) are contraindicated in patients with thrombosis of the axillary-subclavian vein (Paget-Schroetter syndrome).

METHODS

Twenty-two patients had IS placed after balloon dilatation of the venous compression in the thoracic outlet. Each of the patients receiving IS had the diagnosis made less than 6 weeks after vein occlusion, previous thrombolytic therapy, and poststent anticoagulants. (All were performed in outside hospitals. In no case was surgical decompression of the "externally constricted venous tunnel" performed.) The 22 patients receiving IS were compared with a similar group of 384 patients seen less than 6 weeks after thrombosis who were treated with "optimal therapy," ie, thrombolysis and prompt transaxillary resection of the first rib with venous tunnel decompression.

RESULTS

All 22 patients with IS reoccluded their axillary-subclavian vein from 1 day to 6 weeks after insertion. All were retreated with thrombolytic therapy and first rib resection. Ten remained patent and 7 remained occluded but developed adequate collateral circulation. All 17 were asymptomatic. Five remained occluded with minimal collateral circulation. Attempts were made to reopen them a third time. All 5 are receiving long-term anticoagulants. In contrast the 384 patients managed with optimal therapy were significantly improved without retreatment or anticoagulants.

CONCLUSIONS

From our study, there is no indication for use of IS in patients with Paget-Schroetter syndrome; in fact, from our experience it is contraindicated when compared with the optimal therapy group. Other authors corroborate this conclusion in recent review articles.

Multiple pulmonary emboli with pulmonary hypertension caused by effort thrombosis and effective balloon venoplasty of the subclavian vein

A 36-year-old woman with effort thrombosis of the subclavian vein associated with multiple pulmonary emboli was successfully treated with local thrombolysis of the subclavian vein using a pulse-spray catheter and systemic anticoagulation. Balloon venoplasty of the residual stenosis of subclavian vein was carried out and in follow-up venography 6 months later, there was no restenosis, and the patient has been asymptomatic for 12 months. Pulmonary embolism is not a rare complication of upper extremity deep vein thrombosis and should be managed as aggressively as lower extremity deep vein thrombosis.

Effort subclavian vein thrombosis: evolution of management

PURPOSE

To analyze changes in the management of effort subclavian vein thrombosis at our institution.

METHODS

Records of 23 patients with effort subclavian vein thrombosis treated over a 10-year period were analyzed to compare the results of conventional therapy (heparin/warfarin) used in the first half of this period to a multimodality treatment strategy (thrombolysis and other adjunctive treatment as indicated, e.g., first rib resection, angioplasty/stenting, and vein reconstruction). Diagnostic testing included duplex ultrasound and venography. All patients had at least 1-year follow-up.

RESULTS

Eight patients (7 men; mean age 34 years, range 15-54) had conventional treatment (group A) and 15 patients (14 men; mean age 36 years, range 17-55) had multimodality therapy (group B). Demographics and clinical characteristics were comparable for both groups. Initial thrombolysis was achieved in 14 (93%) group B patients; 10 received adjunctive treatment to relieve external compression or vein stenosis. Four patients had successful first or cervical rib resection and scalenectomy, and first rib resection followed by angioplasty/stenting was successful in 2. However, angioplasty and stenting alone failed in 2 patients, while venous reconstruction was successful in only 1 of 2 cases. Mean follow-up was 72 months in group A patients and 59 months in group B. One (13%) group A patient and 12 (80%) group B patients demonstrated total venous recanalization and symptom resolution (p = 0.003). Overall, clinical resolution (total and partial symptom relief) was achieved in 3 (38%) group A patients and 13 (87%) group B patients (p = 0.026).

CONCLUSIONS

Initial lytic therapy followed by adjunctive treatment to relieve external venous compression or venous stenosis is effective in treating patients with effort subclavian vein thrombosis.