Left Atrial Septal Pouch-Is it Really a New Risk Factor for Ischemic Stroke?: Subanalysis of the ASSAM Study.

Autor:	Michałowska I; Department of Radiology, National Institute of Cardiology., Dudzińska K; Department of Cardiology, Division of Clinical Electrophysiology, Centre of Postgraduate Medical Education, Grochowski Hospital., Kowalik I; 2nd Department of Coronary Artery Disease, National Institute of Cardiology, Warsaw, Poland., Kwiatek P; Department of Radiology, National Institute of Cardiology., Piotrowski R; Department of Cardiology, Division of Clinical Electrophysiology, Centre of Postgraduate Medical Education, Grochowski Hospital., Kułakowski P; Department of Cardiology, Division of Clinical Electrophysiology, Centre of Postgraduate Medical Education, Grochowski Hospital., Baran J; Department of Cardiology, Division of Clinical Electrophysiology, Centre of Postgraduate Medical Education, Grochowski Hospital.
Jazyk:	angličtina
Zdroj:	Journal of thoracic imaging [J Thorac Imaging] 2022 May 01; Vol. 37 (3), pp. 168-172. Date of Electronic Publication: 2021 Feb 15.
DOI:	10.1097/RTI.0000000000000582
Abstrakt:	Purpose: The atrial septal pouch is an anatomic variant of the interatrial septum caused by incomplete fusion of the septum primum and secundum. It is debatable whether coexistence of septal pouch and atrial fibrillation (AF) increases the risk of stroke. Thus, the aim of the study was to evaluate the coexistence of left atrial septal pouch (LASP) and AF in patients with a history of stroke in comparison with those without an earlier history of stroke. Materials and Methods: We analyzed 145 patients with AF (68 in the study group, 77 in the control group). The study group consisted of patients with previous stroke and AF; control group consisted of patients scheduled for AF ablation. All patients underwent computed tomography with the assessment of atrial septum morphology and presence of LASP. The study was a subanalysis of the ASSAM (AssesSment of the left atrial appendage morphoLogy in patients aAfter ischaeMic Stroke) study. Results: The prevalence of LASP in the entire group was 38.6%. There were no significant differences in the prevalence of LASP between the study and control groups (33.8% vs. 42.9%, P=0.265). Mean longitudinal and transverse dimensions of LASP were 9.34±3.27 and 2.4±0.6 mm, respectively, and there was no significant difference between the study and controls. Patients from the stroke group were older (P<0.0001), had a higher CHA2DS2-VASc score (5.41±1.93 vs. 1.62±1.46, P<0.0001) compared with controls. Conclusions: Presence of LASP is not more prevalent in patients with a history of stroke. Additional information on the presence of LASP do not improve accuracy of risk stratification for stroke in patients with AF. Competing Interests: The authors declare no conflict of interest. (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
Databáze:	MEDLINE
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