Effects of propofol versus sevoflurane induction on echocardiographic parameters in patients with mitral stenosis: a randomized clinical trial

Figures

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  Figure 1. Images showing various echocardiographic parameters to determine the severity of MS. (A) CWD across mitral valve in transthoracic apical four-chamber view-spectral Doppler traced to determine the Vmax-maximum velocity, peak, and mean pressure gradients. (B) CWD across mitral valve in transthoracic apical four-chamber view-spectral Doppler traced along the slope starting from the peak to half the velocity for determination of PHT and till the baseline to derive DT. (C) CWD across mitral valve in transthoracic apical four-chamber view-spectral Doppler traced to obtain MV VTI for the derivation of MVA by continuity equation. (D) LVOT VTI was obtained by tracing the PWD spectral trace across LVOT in an apical five-chamber view. CE, Continuity Equation; CWD, Continuous Wave Doppler; DT, Deceleration Time; LVOT, Left Ventricular Outflow Tract; MV, Mitral Valve; MVA, Mitral Valve Area; PHT, Pressure Half Time; PLAX, Parasternal Long Axis view; PWD, Pulse Wave Doppler; VTI, Velocity Time Integral.

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  Figure 2. CONSORT diagram depicting various stages at which patients were screened and finally recruited into the study.