An Alternative Echocardiographic Method to Estimate Mean Pulmonary Artery Pressure: Diagnostic and Clinical Implications - 24/08/11
, Marcelo M. Lozano, MD b, George N. Hepler, RDCS b, Cesar A. Keller, MD a, Francisco Alvarez, MD a, Robert E. Safford, MD b, Julia E. Crook, PhD c, Michael G. Heckman, MS c, Charles D. Burger, MD a
Reprint requests: Ramon Castello, MD, Apex Cardiovascular Group, Florida Physicians Research Associates, 6428 Beach Boulevard, Jacksonville, FL 32216.Jacksonville, Florida
Abstract |
Background |
The aim of this study was to evaluated an alternative echocardiographic method to calculate mean pulmonary arterial pressure (MPAP).
Methods |
One hundred two patients were studied with simultaneous right-heart catheterization (RHC) and echocardiography. MPAP was calculated by adding the right ventricular–right atrial mean systolic gradient to right atrial pressure.
Results |
The mean difference between MPAP calculated using this method and RHC-derived MPAP was −1.6 mm Hg, less than that of traditional systolic pulmonary arterial pressure (SPAP; −6.4 mm Hg) and MPAP estimated using the pulmonary regurgitation method (−13.9 mm Hg). The median absolute percentage difference of the MPAP calculations relative to RHC was significantly less with this method than with the pulmonary regurgitation method (18% vs 71%; P < .001) and similar to the SPAP method (both 18%; P = .30).
Conclusion |
MPAP calculated using the proposed method is as accurate as SPAP calculation and less variable than previous methods, thus allowing widespread clinical use.
Le texte complet de cet article est disponible en PDF.Keywords : Doppler echocardiography, Mean pulmonary pressure, Pulmonary hypertension
Plan
| This paper was presented in part at the American Thoracic Society International Conference, San Francisco, CA, May 18-23, 2007. |
Vol 22 - N° 7
P. 814-819 - juillet 2009 Retour au numéro
Article précédent
- Endurance Exercise and the Heart: Multiple Benefits but Many Unanswered Questions
- Tomas G. Neilan, Malissa J. Wood
- Stepping Away From Ritual Right Heart Catheterization Into the Era of Noninvasively Measured Pulmonary Artery Pressure
- Bryan Ristow, Nelson B. Schiller
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?