superior vena cava (svc) syndrome is not an uncommon occurrence in patients with malignancy and it is often described as a medical emergency. in majority of the cases, svc syndrome occurs due to mechanical obstruction of the svc by extraluminal compression with primary intrathoracic malignancies. however, intraluminal obstruction due to thrombosis can also produce symptoms and signs of svc synd...

the mean percentage of cryptogenic strokes among ischemic strokes is 31%, of which one-third may be associated with patent foramen ovale. the foramen ovale is required for blood flow through the fetal atrial septum.  it is formed as of the fourth week of gestation, and this leads to right-left interatrial shunt that allows the passage of oxygenated blood to systemic circulation. in 75% of cases...

Venous thromboembolism refers to thrombotic events in the venous system that are most commonly manifested as deep vein thromboses in the upper or lower extremity and/or pulmonary embolism. Venous thromboembolism is a common disorder that is associated with significant mortality, morbidity and health care-related cost. An array of hereditary and acquired risk factors are associated with venous t...

OBJECTIVE To assess the risk of venous thromboembolism in women using hormone replacement therapy by study design, characteristics of the therapy and venous thromboembolism, and clinical background. DESIGN Systematic review and meta-analysis. DATA SOURCES Medline. STUDIES REVIEWED Eight observational studies and nine randomised controlled trials. INCLUSION CRITERIA Studies on hormone re...

abstract:acute venous thromboembolism (vte) is a common disease associated with the significant morbidity and mortality. we reviewed clinical outcomes systematically with dabigatran as a direct oral anticoagulants (doac) for treatment of acute vte. we used ovide, pubmed, cochrane (central), embase, scopus, science direct, lilac(for article written not english) and also iranian database; magiran...

introduction: oral contraceptives (ocs) are considered as one of the most common risk factor of venous thromboembolism (vte) in child bearing age. some of the recent researches indicate that the odds of vte may be even higher with newer generations of ocs. the present meta-analysis was designed to evaluate the effect of different generation of ocs on the occurrence of vte. methods: two research...

OBJECTIVE To determine the effect of sex on the risk of recurrent venous thromboembolism in all patients and in patients with venous thromboembolism that was unprovoked or provoked (by non-hormonal factors). Data source Comprehensive search of electronic databases (Medline, Embase, CINAHL, Cochrane Central Register of Controlled Trials) until July 2010, supplemented by review of conference abst...

background: evidence is accumulating that venous thromboembolism is not limited to coagulation system and immune system seems to be involved in formation and resolution of thrombus. some studies have demonstrated the role of inflammatory factors in deep venous thrombosis (dvt) of limbs; however, there has not been such study in the patients with cerebral venous sinus thrombosis (cvst). the purp...

background: venous thromboembolism, which comprises deep vein thrombosis and pulmonary embolism and is a significant cause of morbidity and mortality among patients with cancer. the aim of the present study was to report a rare presentation of arterial thrombosis after venous thrombosis in a patient with gastric cancer. report of the case: a 45 year-old female patient with locally advanced gast...

conclusions: thus, identifying the hf patients before the flight and providing them proper education about the events that may occur during flight is necessary. results: hf patients are more prone to experience respiratory distress, anxiety, stress, cardiac decompensation, and venous thromboembolism (vte) during air travel. although stable hf patients can tolerate air travel, but those with acu...