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  • Title: Morbidity and mortality associated with internal jugular vein thromboses.
    Author: Ascher E, Salles-Cunha S, Hingorani A.
    Journal: Vasc Endovascular Surg; 2005; 39(4):335-9. PubMed ID: 16079942.
    Abstract:
    The authors have noted a significant incidence of pulmonary embolism and mortality associated with upper extremity deep venous thrombosis (UEDVT). Since there is an association between the site of lower extremity DVT (LEDVT) and pulmonary embolism, they hypothesized that there might also be a correlation between the site of UEDVT and the incidence of pulmonary embolism (PE) and associated mortality. To further elucidate this hypothesis, they analyzed the mortality rate and incidence of PE diagnosed with subclavian/axillary or internal jugular vein thrombosis during a 5-year period at their institution. Two hundred and ten patients were diagnosed with acute internal jugular and/or subclavian/axillary DVT during a 5-year period by duplex scanning. The indications for the duplex examination were upper extremity swelling in 187 (89%) or as part of the work-up for pulmonary embolism in 23 (11%). There were 126 women (60%) and 84, men (40%). The mean age was 67 +/-18 years (range 1-101 years). The patients were divided into 3 groups based on the location of the thrombus: Group I-UEDVT involving the subclavian and/or axillary veins (n = 128); Group II-internal jugular vein thrombosis alone (n = 21); and Group III-concomitant subclavian/axillary and internal jugular vein DVT (n = 61). Risk factors were presence of central venous catheter or pacemaker in 127 patients (60%), malignancy in 78 patients (37%), concomitant lower extremity deep venous thrombosis (LEDVT) in 40 patients (19%), and history of LEDVT in 6 patients (3%). Eighty (38%) patients had more than 1 risk factor. The mean follow-up period was 13 +/-1 months (range 0-49 months). Mortality rates at 1, 3, and 12 months were 13%, 31%, and 40% for Group I; 14%, 33%, and 42% for Group II; and 23%, 44%, and 59% for Group III. The mortality rate in Group I was statistically significantly higher for patients >/=75 years old, patients not treated with anticoagulation, and patients who underwent placement of a central venous line. The same risk factors did not achieve statistical significance in the 2 other groups. The number of patients diagnosed with pulmonary embolism by ventilation/perfusion scans in Groups I, II, and III that could be attributed to the UEDVT solely was 8 (4%), 1 (0.5%), and 3 (2.4%), respectively. Contrary to the initial hypothesis of a relationship between the site of thrombosis and the incidence of pulmonary embolism and mortality, these data showed no statistical differences in mortality rate or incidence of pulmonary embolism among the 3 groups studied. These data also suggest that internal jugular vein thrombosis is a disease process associated with mortality and morbidity rates comparable to those of subclavian/axillary vein thrombosis.
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