Prognostic assessment in patients with acute venous thromboembolism is essential to drive clinical management in terms of hospitalization or home treatment, and revascularization strategies or anticoagulation alone. In these patients, single predictors, combinations of predictors, or prognostic models can be used for prognostic assessment. Overall, the risk for short-term death is about tenfold higher after acute pulmonary embolism than after acute deep vein thrombosis. Localization of thrombosis (proximal or distal) and some clinical features are the main predictors of prognosis in patients with deep vein thrombosis. In patients with pulmonary embolism, prognostic assessment includes the evaluation of clinical features, findings at imaging (computed tomography angiography, echocardiography, and/or ultrasonography of the lower limbs), or biomarkers of right ventricular dysfunction or injury. The presence of shock or sustained hypotension is the main criterion for the identification of high-risk patients. Clinical models with high negative predictive value have been validated to identify patients at low risk for short-term death. Whether the assessment of right ventricular dysfunction in these patients can further improve the negative predictive value of clinical models remains to be defined. Right ventricular dysfunction as assessed by echocardiography or computed tomography angiography as well as right ventricular damage by troponin levels are associated with an about twofold increase in the risk for short-term death in intermediate risk patients. However, prognostic assessment in these patients requires further improvement before it can be used to drive decisions on treatment.
Compression stockings are recommended for prophylaxis against venous thromboembolism in patients undergoing neurosurgery, but anticoagulant agents have not gained wide acceptance because of concern about intracranial bleeding.
Stroke is the most common neurologic disease and the leading cause of adult disability in Western countries. The initial diagnosis of stroke is clinical and needs to be done as rapidly as possible to guarantee optimal medical and interventional therapy. The emergency stroke management depends heavily upon stroke scores to quantify the damage and to
<i>Background:</i> The optimal management of patients with cryptogenic ischemic stroke found to have a patent foramen ovale (PFO) at diagnostic workup remains unclear. The aims of this observational multicenter study were to evaluate: (1) the risk of recurrent cerebrovascular events in patients with cryptogenic minor ischemic stroke or transient ischemic attack (TIA) and PFO who either underwent percutaneous PFO closure or received only medical treatment, and (2) the risk factors associated with recurrent events. <i>Methods:</i> Consecutive patients (aged 55 years or less) with first-ever cryptogenic minor ischemic stroke or TIA and PFO were recruited in 13 Italian hospitals between January 2006 and September 2007 and followed up for 2 years. <i>Results:</i> 238 patients were included in the study (mean age 42.2 ± 10.0 years; 118 males); 117 patients (49.2%) received only antithrombotic therapy while 121 patients underwent percutaneous PFO closure (50.8%). Stroke as the qualifying event was more common in the medical treatment group (p = 0.01). The presence of atrial septal aneurysm and evidence of 20 bubbles or more on transcranial Doppler were more common in the PFO closure group (p = 0.002 and 0.02). Eight patients (6.6%) experienced a nonfatal complication during PFO closure. At the 2-year follow-up, 17 recurrent events (TIA or stroke; 3.6% per year) were observed; 7 of these events (2.9% per year) occurred in the percutaneous PFO closure group and 10 events (4.2% per year) in the medical treatment group. The rate of recurrent stroke was 0.4% per year in patients who underwent percutaneous closure (1 event) and 3.4% per year in patients who received medical treatment (8 events). On multivariate analysis, percutaneous closure was not protective in preventing recurrent TIA or stroke (OR = 0.1, 95% CI = 0.02–1.5, p = 0.1), while it was barely protective in preventing recurrent stroke (OR = 0.1, 95% CI = 0.0–1.0, p = 0.053). <i>Conclusions:</i> The results of this observational, nonrandomized study suggest that PFO closure might be superior to medical therapy for the prevention of recurrent stroke. Periprocedural complications were the trade-off for this clinical benefit. Controlled randomized clinical trials comparing percutaneous closure with medical management are required.
ters on coronary-artery revascularization focus on percutaneous coronary intervention or coronaryartery bypass grafting; they barely mention the medical reperfusion treatment of myocardial infarction.The chapters about peripheral arterial disease and stroke are well written.Surprisingly, the book does not include a chapter on the treatment of venous thromboembolism, but it does contain one chapter on the management of venous thromboembolism during pregnancy and one chapter on thromboembolic disease in children.Both chapters are written by authors with remarkable experience in these fields.In conclusion, Thrombosis in Clinical Practice is well written and includes much up-to-date information.Despite some inconsistencies and overlapping content among chapters, it focuses on issues that are not addressed in other books on the same topic.