• Resp Care · Oct 2011

    Case Reports

    Sildenafil to facilitate weaning from inhaled nitric oxide and mechanical ventilation in a patient with severe secondary pulmonary hypertension and a patent foramen ovale.

    • Shlomo Elias, Sigal Sviri, Efrat Orenbuch-Harroch, Yakov Fellig, Arie Ben-Yehuda, Zvi G Fridlender, Dan Gilon, and Abed Bayya.
    • Department of Medicine, Hebrew University-Hadassah Medical Center, Jerusalem, Israel. selias@hadassah.org.il
    • Resp Care. 2011 Oct 1;56(10):1611-3.

    AbstractWe describe the case of a woman who presented to the intensive care unit with acute respiratory failure that required mechanical ventilation. She had severe pulmonary hypertension secondary to interstitial lung disease, and her history included sarcoidosis and tuberculosis. She was dependent on inhaled nitric oxide (INO) to maintain safe arterial oxygen saturation and could not be weaned from mechanical ventilation. Echocardiography revealed a patent foramen ovale with substantial right-to-left shunt, which probably contributed to her hypoxemia. Sildenafil enabled weaning from INO and substantially reduced the flow through the patent foramen ovale. She was successfully extubated and discharged home. To our knowledge, this is the first report of weaning from INO and mechanical ventilation in a patient with both severe secondary pulmonary hypertension and a right-to-left shunt through a patent foramen ovale.

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