McConnell’s sign is defined as right ventricular free wall akinesis with sparing of the apex. Typically this looks as if the apex of the RV is a trampoline bouncing up and down while the rest of the RV remains still. This finding is not sensitive, but in a small study was specific for an acute PE.

2008年10月7日 · McConnell’s sign is a distinct echocardiographic finding described in patients with acute PE. There is a distinct regional pattern of right ventricular dysfunction, with akinesia of the mid free wall (centerline excursion, −0.2±0.8 mm; P =0.0001 versus normal) but normal motion at the apex (centerline excursion, 5.7±0.8 mm; P =NS versus ...

McConnell's sign, an echocardiographic finding of segmental right ventricular wall‐motion abnormality with apical sparing, is highly specific in acute pulmonary embolism and may guide rapid intervention when other testing is not feasible.

2022年11月21日 · The McConnell's sign describes a regional pattern of acute right ventricular dysfunction on transthoracic echocardiography first observed in a cohort of patients with acute pulmonary thromboembolism.

McConnell’s sign is a well-established, specific echocardiographic sign for acute pulmonary embolism. Multiple theories have been proposed regarding the mechanism of McConnell’s sign in the context of acute pulmonary embolism.

McConnell’s sign is a well-established, specific echocardiographic sign for acute pulmonary embolism. Multiple theories have been proposed regarding the mechanism of McConnell’s sign in the context of acute pulmonary embolism.

"McConnell's sign", defined as RV free wall hypokinesis in the presence of normal RV apical contractility, has 77% sensitivity and 94% specificity for the diagnosis of acute pulmonary embolism, with a positive predictive value of 71% and a negative predictive value of 96% (8).

INTRODUCTION: McConnell's sign, characterized by akinesia of the mid-free wall of the right ventricle (RV) with sparing of the apex, is a rare but critical echocardiographic finding associated with acute pulmonary embolism (PE).

“McConnell’s sign” (McCS), described as hypo- or akinesis of the right ventricular (RV) free wall with preservation of the apex, is associated with acute pulmonary embolism (aPE). However, the sensitivity of McCS for the detection of aPE is limited.

2015年3月9日 · McConnell’s sign, that is regional RV dysfunction, with akinesia of the mid free wall but normal motion at the apex is a distinct echocardiographic finding described in patients with acute pulmonary embolism.