• Chest · Mar 1994

    Case Reports

    Right-to-left interatrial shunt causing platypnea after pneumonectomy. A recent experience and diagnostic value of dynamic magnetic resonance imaging.

    • N Mercho, J K Stoller, R D White, and A C Mehta.
    • Department of Internal Medicine, Cleveland Clinic Foundation.
    • Chest. 1994 Mar 1; 105 (3): 931-3.

    AbstractShortness of breath after pneumonectomy is a common finding that has multiple causes. We report the cases of two patients with shortness of breath on assuming an upright posture (platypnea) that followed pneumonectomy; these individuals developed right-to-left shunt across a patent foramen ovale (PFO) with normal right-sided intracardiac pressures. Both contrast echocardiography and magnetic resonance imaging (MRI), including a recently introduced dynamic ultrafast imaging technique, proved helpful in diagnosing this condition noninvasively.

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