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 Occluding the pulmonary artery to improve detection of patent foramen ovale during ventricular assist device placement

Jiapeng Huang, Michale J Bouvette
Department of Anesthesia, Jewish Hospital and St. Mary's Healthcare and University of Louisville, 200 Abraham Flexner Way, Louisville, KY, USA

Correspondence Address:
Jiapeng Huang
200 Abraham Flexner Way, Louisville, KY 40202
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.95074

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Year : 2012  |  Volume : 15  |  Issue : 2  |  Page : 118-121

 
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Unrecognized patent foramen ovale (PFO) in patients after left ventricular assist device (VAD) placement could cause significant hypoxemia and paradoxical embolism. We aim to improve the techniques for PFO detection in this patient population before left ventricular device initiation. We evaluated the effects of main pulmonary artery occlusion on patients' hemodynamic and detection of PFO by transesophageal echocardiography (TEE). We compared between the standard and pulmonary artery occlusion technique. Sixty-two patients with ASA physical status class IV were studied. They presented with end-stage heart failure for left VAD placement. All patients received both Valsava maneuver and occlusion of their pulmonary arteries to assess their influence on detection of PFO. Occlusion of the main pulmonary artery consistently increased right atrial to left atrial pressure gradient. The PFO detection rate using TEE was significantly improved from 0% to 10% by this maneuver compared with the Valsava maneuver. Occlusion of the main pulmonary artery is a simple and effective method to improve PFO detection by TEE before left VAD initiation.






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  © Annals of Cardiac Anaesthesia | Published by Wolters Kluwer - Medknow
 Online since 5th January, 2008

 

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Jiapeng Huang, Michale J Bouvette
Department of Anesthesia, Jewish Hospital and St. Mary's Healthcare and University of Louisville, 200 Abraham Flexner Way, Louisville, KY, USA

Correspondence Address:
Jiapeng Huang
200 Abraham Flexner Way, Louisville, KY 40202
USA
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.95074

Rights and Permissions

Unrecognized patent foramen ovale (PFO) in patients after left ventricular assist device (VAD) placement could cause significant hypoxemia and paradoxical embolism. We aim to improve the techniques for PFO detection in this patient population before left ventricular device initiation. We evaluated the effects of main pulmonary artery occlusion on patients' hemodynamic and detection of PFO by transesophageal echocardiography (TEE). We compared between the standard and pulmonary artery occlusion technique. Sixty-two patients with ASA physical status class IV were studied. They presented with end-stage heart failure for left VAD placement. All patients received both Valsava maneuver and occlusion of their pulmonary arteries to assess their influence on detection of PFO. Occlusion of the main pulmonary artery consistently increased right atrial to left atrial pressure gradient. The PFO detection rate using TEE was significantly improved from 0% to 10% by this maneuver compared with the Valsava maneuver. Occlusion of the main pulmonary artery is a simple and effective method to improve PFO detection by TEE before left VAD initiation.






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  © Annals of Cardiac Anaesthesia | Published by Wolters Kluwer - Medknow
 Online since 5th January, 2008