ContextVentilation-perfusion (/) lung scanning and computed tomographic pulmonary
angiography (CTPA) are widely used imaging procedures for the evaluation of patients with …

Overuse of the d‐dimer to screen for possible pulmonary embolism (PE) can have negative
consequences. This study derives and tests clinical criteria to justify not ordering ad‐dimer …

Pulmonary embolism (PE) can only be diagnosed with imaging techniques, which in
practice is performed using ventilation/perfusion scintigraphy (V/P SCAN) or multidetector …

Objectives In older patients, the the D-dimer test for pulmonary embolism has reduced
specificity and is therefore less useful. In this study a new, age dependent cut-off value for …

As right ventricular wall stress increases, cardiac ischemia may develop, because increased
right ventricular pressure compresses the right coronary artery, diminishes subendocardial …

O objetivo desta Diretriz é servir de apoio e auxiliar os médicos nas decisões referentes aos
seus pacientes, elaborando orientações que podem ser úteis na prática médica. A adoção …

Twenty years after its first use in the diagnostic workup of suspected venous
thromboembolism (VTE), fibrin D‐dimer (DD) testing has gained wide acceptance for ruling …

Background: Several clinical decision rules (CDRs) are available to exclude acute
pulmonary embolism (PE), but they have not been directly compared. Objective: To directly …

Objectives (1) To analyze the sensitivity and specificity of fine-needle aspiration (FNA) in
distinguishing benign from malignant parotid disease.(2) To determine the anticipated …

Background—The rate of hospitalization for venous thromboembolism (VTE) is increasing in
the United States. Although predictors of hospital-acquired VTE are well-known, triggers of …