ArticleJACC. Case reports2025
Microaxial Flow Pump for Left Ventricular Unloading After Aortic Valve Surgery: Overcoming Vascular and Valvular Barriers.
Article in JACC. Case reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
backgroundIn hemodynamically unstable patients on venoarterial extracorporeal membrane oxygenation (VA-ECMO), left ventricular unloading may be essential but technically challenging, especially after aortic valve replacement. CASE SUMMARY: We report a case of a 64-year-old male patient with postcardiotomy cardiogenic shock after combined coronary and aortic valve surgery. VA-ECMO alone was insufficient, prompting the use of a microaxial flow pump via axillary access. Challenges included left ventricle wiring through the closed bioprosthetic aortic valve and navigating a severely stenotic subclavian artery. A combination of advanced imaging and vascular techniques enabled successful device placement. TAKE-HOME MESSAGES: A transesophageal ultrasound-guided mother-and-child technique with steerable catheter allows precise control for atraumatic valve crossing in case of functionally closed aortic leaflets. Intravascular lithotripsy is a potent tool to facilitate large-bore access for mechanical circulatory support in patients with calcified peripheral artery disease.
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