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  • Title: Right atrial tunnel to the left atrial appendage: a danger during balloon septostomy.
    Author: Waldman JD, McFeeley P, Bornikova L.
    Journal: Pediatr Cardiol; 2001; 22(5):397-9. PubMed ID: 11526414.
    Abstract:
    Right atrial tunnel to the left atrial appendage is a very rare anomaly not previously described. Per se, it has no physiological significance but is a source of potential disaster during balloon atrial septostomy. The precise anatomy is demonstrated and ways are proposed to avoid tearing the atrial wall during therapeutic cardiac catheterization.
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