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  • Title: Retrograde pulmonary vein wedge angiography: a new technique.
    Author: Bahl VK, Kothari SS, Kumar K, Wasir HS.
    Journal: Cathet Cardiovasc Diagn; 1995 Mar; 34(3):259-60; discussion 261-2. PubMed ID: 7497497.
    Abstract:
    A new technique of pulmonary vein wedge angiography to delineate pulmonary artery anatomy is described. Conventional pulmonary vein wedge angiography requires an interatrial communication--natural or created by a transseptal puncture. In retrograde pulmonary vein wedge angiography, the left atrium and pulmonary veins are entered from arterial route using a specially designed catheter. This technique can be specially utilized for patients in whom there is no interatrial communication.
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