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Interventricular septal dissection secondary to acute inferior myocardial infarction: case series and literature review.

J Cardiothorac Surg

January 2025

Echocardiography and Vascular Ultrasound Center, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China.

Background: Interventricular septal dissection is a critical disease characterized by the separation of the intraventricular septum into two layers, forming an intermediate layer with a cystic cavity that communicates with the root of the aorta or ventricle. It has low morbidity and high mortality rates.

Case Presentation: Case 1: A 58-year-old male with a history of hypertension and smoking presented to a local hospital due to chest tightness and pain for 4 days.

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: Left ventricular aneurysm (LVA) causes geometric changes, including reduced systolic function and a more spherical shape, which is quantified by the sphericity index (SI), the ratio of the short to long axis in the apical four-chamber view. This study aimed to assess SI's value in A-LVA and B-LVA, identify influencing factors, and evaluate its clinical relevance. : This clinical study included 54 patients with post-infarction LVA and used echocardiography to determine LVA locations (A-LVA near the apex and B-LVA in the basal segments), with SI and other echocardiographic measures assessed in both systole and diastole for the entire cohort and stratified by A-LVA and B-LVA groups.

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Coronary artery fistulas (CAFs) are rare congenital anomalies, presenting in 0.05-0.9% of cases, characterized by an aberrant connection between a coronary artery and a cardiac chamber or great vessel.

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Objective: Chronic Chagas Cardiomyopathy (CCC) carries a high risk of embolic events due to structural changes in the left ventricle and frequent conduction disorders. However, there is limited data on anticoagulant prescription patterns and factors influencing the use of direct oral anticoagulants (DOACs) in these patients. This study aims to characterize CCC patients based on the anticoagulant therapy received and identify factors associated with DOACs use.

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