…PH in the absence of CTEPH, lung disease, or another explanatory cause. PAH reflects marked pulmonary arterial remodelling, with fibroproliferative, plexogenic, and sometimes thrombotic changes…

…and also avoid bending the back during the examination. Work related musculoskeletal disorders are a common cause of pain and sickness absence for ultrasound practitioners…

…evaluating acquired QT prolongation. The upper 99% limits of normal for corrected QT (QTc) values in the general population are 450 ms for men and…

…the ratio of pulmonary blood flow (Qp) to systemic blood flow (Qs). This measurement is pivotal in diagnosing and managing congenital or acquired cardiac shunts…

…then 100 mg × 1 5–7 days Epiglottitis and other severe upper airway infection cefotaxime 1–2 g × 3 IV Depends on the diagnosis Always…

…and physical inactivity. The interaction between these acquired risks and age related cardiovascular remodeling contributes to the high incidence and prevalence of coronary and vascular…

…the vulnerability caused by marked local differences in repolarization. This article is part of the comprehensive chapter: How to read and interpret the normal ECG

…its temporal and axial resolution is very high, as compared with 2D echocardiography. M mode is useful for quantifying the mobility of structures and measuring…

…with LQTS (congenital or acquired). The VT is polymorphic with a gradual alteration in the QRS amplitude, often with twisting of the QRS complex around…

…with LQTS (congenital or acquired). The VT is polymorphic with a gradual alteration in the QRS amplitude, often with twisting of the QRS complex around…