Left atrial dissection is a very uncommon complication of cardiac surgery and usually causes significant hemodynamic compromise. Little is known about spontaneous dissection of the left atrium. Two patients, one middle-aged man and another elderly woman were evaluated following stroke. Routine trans-thoracic echocardiogram showed vertical division of the left atrium with both chambers communicating with each other through an orifice. Detailed trans-oesophageal echocardiographic study revealed dissection of the left atrium producing an additional false chamber (pseudo-aneurysm) placed posterior to the left atrial appendage and above the postero-lateral aspect of mitral annulus. Spontaneous dissection of the left atrium is extremely rare, and there is no report of cerebral embolism associated with it. Review of literature reveals interesting facets of this rare entity.
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http://dx.doi.org/10.1016/j.ihj.2015.12.020 | DOI Listing |
Ann Noninvasive Electrocardiol
March 2025
Department of Clinical Sciences, Malmö, Lund University, Malmö, Sweden.
Background: Arterial stiffness, measured using carotid-femoral pulse wave velocity (c-f PWV) and heart rate-corrected augmentation index (Aix75), is associated with cardiovascular disease, and in some studies incident atrial fibrillation (AF). In this cross-sectional study, we aimed to investigate whether arterial stiffness is associated with markers of atrial myopathy, which refers to structural and electrical changes in the atria that indicate increased AF risk.
Methods: We included 1050 participants (age 57 ± 4.
J Cardiovasc Electrophysiol
January 2025
Cardiology department, "S. Maria dei Battuti" Hospital, Via Brigata Bisagno, Conegliano (TV), Italy.
Background: Recent advancements in ultra-high-density mapping (UHDM) featuring automated functionalities have enhanced our understanding of micro-reentrant atrial tachycardias (mAT) circuits and the precise localization of the origin.
Purpose: To evaluate the diagnostic support provided by an automated UHDM algorithm in guiding the ablation of mATs.
Methods: Consecutive patients eligible for AT ablation in 22 Italian centers were prospectively enrolled.
JACC Case Rep
January 2025
Division of Cardiology, Electrophysiology Section, Adult Congenital Arrhythmia Clinic, Emory University, Atlanta, Georgia, USA.
Background: The atrial switch procedure is accompanied by a very high rate of sinus node dysfunction. Baffle stenosis is a common problem with transvenous pacemaker leads in this scenario.
Case Summary: We present a first-in-human case of a leadless pacer (LP) in the left atrium in a patient with prior atrial switch for transposition and sinus node dysfunction complicated by multiple abandoned leads, superior baffle occlusion, and failed extraction.
JACC Case Rep
January 2025
AIIMS Rishikesh, Rishikesh, Uttarakhand, India.
Myxoma is a cardiac tumor most commonly found in the left atrium, presenting most frequently with dyspnea, chest pain, and constitutional symptoms. Hereby, we are presenting a rare case of cardiac myxoma originating from the left ventricle, presenting with an ischemic stroke in a young individual. He underwent surgical excision of the mass.
View Article and Find Full Text PDFJ Feline Med Surg
January 2025
College of Veterinary Medicine, China Agricultural University, Beijing, China.
Objectives: This study aimed to assess left atrial (LA) size in healthy cats using cardiovascular MRI (cMRI) and to compare this with LA size assessed by two-dimensional echocardiography. The hypothesis was that cMRI would accurately determine LA size in domestic cats.
Methods: A prospective comparative study was performed.
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