%0 Journal Article %T Cardiovascular Magnetic Resonance in Predicting the Reduction in Pulmonary Artery Pressure in Patients With Mitral Stenosis After Surgical or Interventional Treatment %J Iranian Heart Journal %I Iranian Heart Association %Z %A Sanati, Hamidreza %A Rezaei Tabrizi, Reza %A Pouraliakbar, Hamid Reza %A Zahedmehr, Ali %A Firouzi, Ata %A Shakerian, Farshad %A Kiani, Reza %A Naderi, Nasim %D 2017 %\ 03/01/2017 %V 18 %N 1 %P 30-36 %! Cardiovascular Magnetic Resonance in Predicting the Reduction in Pulmonary Artery Pressure in Patients With Mitral Stenosis After Surgical or Interventional Treatment %K Pulmonary artery pressure %K Cardiovascular magnetic resonance imaging %K Mitral stenosis %R %X Background: Pulmonary hypertension (PH) is a common consequence of mitral stenosis (MS).After treatment, PH reverses depending on the chronicity and severity of MS. Thecharacteristic changes in the pulmonary artery (PA) secondary to an elevated pulmonaryartery pressure (PAP) can be evaluated via cardiovascular magnetic resonance imaging(CMR). In this study, we aimed to evaluate if there was any correlation between PAP andhemodynamic findings measured by CMR and whether these findings could be useful inpredicting the PAP response after MS relief.Methods: Thirty-three patients with a diagnosis of severe MS, who were candidated forpercutaneously transvenous mitral commissurotomy (PTMC) or mitral valve replacement(MVR), were included. CMR was performed in all of them before the procedure and PAdistensibility, PA peak velocity, PA forward volume, and PA forward flow were measured.Transthoracic echocardiography was performed at baseline, immediately after theprocedure, and 3 months after MS relief for the assessment systolic PAP.Results: Thirty-three patients with a diagnosis of MS+PH (15 PTMC and 18 MVR) were enrolledin this study. The mean PAP at baseline catheterization ranged from 25 to 70 mm Hg. Therewas a significant drop in systolic PAP immediately after the procedure and 3 months afterMS relief. There was no relationship between the PA distensibility index and systolic PAPchanges after MS relief. PA peak velocity was significantly higher in the patients with >50% drops in their systolic PAP 3 months after the treatment. The multivariable analysisshowed that none of the CMR findings was an independent predictor of a more systolic PAPdecline.Conclusions: Although we found no significant relationship between CMR findings and systolicPAP changes after MS treatment, the result of this study can be used for furtherinvestigations in this regard. %U http://journal.iha.org.ir/article_82756_33c8047440692c596429a818674f3861.pdf