ISSN: 2168-9784
						Ibtesam Ibrahim El-Dosouky 
	
					    												
Zagazig, 44519
Egypt						                            
                            
						
 Research Article
												Role of the Mitral Valve Resistance in Evaluation of Mitral Stenosis Severity 						
Author(s): El-Dosouky II, Meshrif AM
El-Dosouky II, Meshrif AM
             
						
												
				 Background: Mitral valve resistance (MVR) is an important hemodynamic consequence of mitral stenosis (MS). We aimed to determine whether the mitral valve resistance could be used as a clinically reliable method for estimation of MS severity.
Materials and Methods: Transthorathic echocardiographic study of 128 patients with rheumatic MS to estimate; mitral valve area (MVA); planimerty (2D) and pressure half time (PHT), mitral valve score (MVS), right ventricular systolic pressure (RVSP), mean transmitral pressure gradient (MPG), diastolic filling time (DFT), left ventricular out flow tract diameter (LVOTd) and velocity time integral (LVOT vti), MVR calculated as: MPG/aortic flow ratio [(LVOTd) (LVOTvti)/DFT] in dynes.sec.cm-5.
Results: MVR at cut off values of: ≥105.26 dynes.sec.cm-5, had a sensitivity of 86.7% and a specificity of 74.5% for.. View More»
				  
												DOI:
												 10.4172/2168-9784.1000202