Among various echocardiographic parameters for diagnosis of pulmonary embolism, an abnormal regional contraction pattern of the right ventricular free wall consisting of normokinesia of the apical segment and akinesia of the midfree wall with persistence of abnormal wall motion at the base has proved to be fairly specific for pulmonary embolism. This echocardiographic abnormality has been termed "McConnell sign." We describe the case of a patient with acute pulmonary embolism who developed reversible akinesia of the apex and right ventricular midfree wall, a finding we would like to term "reverse McConnell sign."
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http://dx.doi.org/10.1016/j.echo.2004.08.014 | DOI Listing |
The main treatment of patients with chronic thromboembolic pulmonary hypertension (CTEPH) is radical surgery, pulmonary thromboendarterectomy (PEA). However, about 40% of patients with CTEPH are inoperable due to distal pulmonary vascular lesions or the severity of hemodynamic disorders. Almost 30% of patients with CTEPH experience persistent or recurrent pulmonary hypertension after surgery, that requires a drug treatment with PAH-specific drugs.
View Article and Find Full Text PDFJ Intensive Care Med
January 2025
Cardiology Division, Massachusetts General Hospital, Boston, MA, USA.
The unprimed right ventricle is exquisitely sensitive to acute elevations in afterload. High pulmonary vascular tone incurred with acute pulmonary embolism has the potential to induce obstructive shock and circulatory collapse. While emergent pulmonary reperfusion is essential in severe circumstances, an important subset of pulmonary embolism patients may exhibit a less extreme presentation posing a management dilemma.
View Article and Find Full Text PDFJ Cancer
January 2025
Department of Respiratory and Critical Care Medicine, The Second People's Hospital of Jingdezhen, Jingdezhen, China.
The prevailing belief is that third-generation tyrosine kinase inhibitors (TKIs) targeting the epidermal growth factor receptor (EGFR) (TGET) outperform first-generation EGFR-TKIs (FGET) in managing advanced-stage EGFR-mutated non-small cell lung cancer (NSCLC). However, this standpoint lacks substantiation in evidence-based medicine. Therefore, this meta-analysis was conducted to compare the efficacy and adverse effects (AEs) of these two categories.
View Article and Find Full Text PDFMediastinum
May 2024
Department of Interventional Radiology, Division of Diagnostic Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
The mediastinal vasculature can be affected by various etiologies in cancer patients. Both direct and indirect sequela of cancer may result in life-threatening clinical presentations. Tumor growth may cause vessel narrowing and decreased blood flow from either extrinsic mass effect, invasion into the vascular wall, or tumor thrombus within the lumen.
View Article and Find Full Text PDFRespir Res
January 2025
Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, Department of Biomedical Engineering, Air Force Medical University, Xi'an, 710032, China.
Background: Acute pulmonary embolism represents the third most prevalent cardiovascular pathology, following coronary heart disease and hypertension. Its untreated mortality rate is as high as 20-30%, which represents a significant threat to patient survival. In view of the current lack of real-time monitoring techniques for acute pulmonary embolism, this study primarily investigates the potential of the pulsatility electrical impedance tomography (EIT) technique for the detection and real-time monitoring of acute pulmonary embolism through the collection and imaging of the pulsatile signal of pulmonary blood flow.
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