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Correspondence
Improving echocardiographic estimation of pulmonary vascular resistance
  1. Corrado Magnino,
  2. Alberto Milan,
  3. Franco Veglio
  1. Department of Medicine and Experimental Oncology, Hypertension Unit, University of Turin, Turin, Italy
  1. Correspondence to Corrado Magnino, Department of Medicine and Experimental Oncology, Division of Internal Medicine, Hypertension Unit, University of Turin, Via Genova 3, 10126, Turin, Italy; cmagnino{at}libero.it

http://dx.doi.org/10.1136/hrt.2011.223735

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    To the Editor We appreciate the study by Dahiya et al, attempting to improve non-invasive estimation of pulmonary vascular resistance (PVR).1 However, some points deserve a few comments. (1) The new formula (PVRc) compared with the previous one by Abbas et al2 (PVRe) includes E/e′ ratio, in order to take into account the pulmonary capillary wedge pressure and estimate transpulmonary gradient better. E/e′ is a …

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      The Authors' reply
      Arun Dahiya William Vollbon Christine Jellis David Prior Sudhir Wahi Thomas Marwick
      Heart 2011; 97 782-782 Published Online First: 11 Mar 2011. doi: 10.1136/hrt.2011.223743