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Impact of leadless pacemaker implantation site on cardiac synchronization and tricuspid regurgitation.
Egypt Heart J
January 2025
Department of Cardiology, Hangzhou First People's Hospital, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China.
Background: To investigate the optimization of leadless pacemaker placement and to assess its impact on heart synchronization and tricuspid regurgitation.
Results: A clinical trial was conducted involving 53 patients who underwent leadless pacemaker implantation at the Second Affiliated Hospital of Zhejiang University School of Medicine and Hangzhou First People's Hospital between March 2022 and February 2023. Implantation site localization was determined using the 18-segment method under RAO 30° imaging.
The Evaluation of Right Ventricular Synchrony by Two-Dimensional Speckle Tracking Echocardiography in Connective Tissue Disease-Associated Pulmonary Arterial Hypertension.
Echocardiography
January 2025
Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
Objectives: Numerous studies have demonstrated impaired right ventricular (RV) synchronicity in pulmonary arterial hypertension (PAH). However, few studies have focused on connective tissue disease (CTD)-associated PAH. This study evaluates RV dyssynchrony and its prognostic value in CTD-associated PAH.
View Article and Find Full Text PDFHigh volume-rate echocardiography for simultaneous imaging of electromechanical activation and cardiac strain of the whole heart in a single heartbeat in humans.
PLoS One
December 2024
Department of Radiology, Columbia University, New York, NY, United States of America.
Background: Imaging both electrical and mechanical cardiac function can better characterize cardiac disease and improve patient care. Currently, there is no noninvasive technique that can simultaneously image both electrical and mechanical function of the whole heart at the point of care. Here, our aim is to demonstrate that high volume-rate echocardiography can simultaneously map cardiac electromechanical activation and end-systolic cardiac strain of the whole heart in a single heartbeat.
View Article and Find Full Text PDFRight-to-left shunt detection synchronized contrast transcranial Doppler combined with contrast transthoracic echocardiography: A preliminary study.
World J Radiol
November 2024
Department of Neurology, The First Affiliated Hospital of Shenzhen University, Shenzhen 518000, Guangdong Province, China.
Background: Patent foramen ovale (PFO)-related right-to-left shunts (RLSs) have been implicated in cryptogenic stroke and migraine, with larger shunts posing a higher risk. When used individually to detect RLS, contrast transcranial Doppler (cTCD) and contrast transthoracic echocardiography (cTTE) may yield false-negative results. Further, the literature exposes gaps regarding the understanding of the limitations of cTCD and cTTE, presents conflicting recommendations on their exclusive use, and highlights inefficiencies associated with nonsynchronous testing.
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