Thoracic Key

In the title of the article, the word “Echocardiacgraphic” was incorrectly typeset. The correct wording in the title of the article should have been “Echographic.”

Hauser et al nicely confirmed, in young subjects with complete atrioventricular block, that dual-chamber sequential pacing increased rest cardiac output, using a noninvasive, inert gas rebreathing method. However, their conclusion…

I read with great interest the recent report by Goncalves et al on the usefulness of mean platelet volume (MPV) as a prognostic biomarker after percutaneous coronary intervention (PCI). In…

We read with interest the report by Fiuzat et al, using the Duke Databank for Cardiovascular Disease, suggesting an increase in acute myocardial infarction (AMI) associated with the downturn in…

Increased red blood cell distribution width (RDW), a marker of anisocytosis, has been associated with adverse outcomes in multiple settings. Whether RDW is predictive of mortality in patients with peripheral…

Numerous studies have examined whether plasma D-dimer (DD) can be used to identify patients with acute aortic dissection (AAD). These studies have been inconclusive because of their limited sample sizes…

Low cardiorespiratory fitness and low serum 25-hydroxy vitamin D (25[OH]D) levels are associated with increased cardiovascular and all-cause mortality, but whether low 25(OH)D is independently associated with cardiorespiratory fitness in…

The effect of heart rate (HR) on left ventricular (LV) mechanical dyssynchrony has not been studied by phase analysis of myocardial perfusion imaging and has yielded conflicting results by echocardiography….