case_images: PMC8851360_01
case_images: Three-chambers view: (A) Pre-beta-blocker administration without color doppler. (B)
  Pre-beta-blocker administration with color doppler. (C) Post-beta-blocker administration
  without color doppler. (D) Post-beta-blocker administration with color doppler. Arrow:
  systolic anterior motion of mitral leaflet. In pre-beta-blocker echocardiography, severe
  eccentric mitral regurgitation can be seen due to systolic anterior motion of the mitral
  valve.
case_images: 10.1177_23247096211056491-fig1.jpg
case_images: PMC8851360_01_10.1177_23247096211056491-fig1.jpg
case_images: fig1-23247096211056491
case_images: Severe eccentric MR directed posteriorly and laterally, caused by SAM of anterior and posterior leaflets of the mitral valve, was also observed (Figure 1A and B; Figure 2A and B). The TOE recorded 2 minutes after the esmolol administration showed a critical reduction in intraventricular gradient and in SAM of the mitral valve (Figure 1C and D; Figure 2C and D), which in turn resulted in MR improvement.
case_images: Four-chambers view: (A) Pre-beta-blocker administration without color doppler. (B)
  Pre-beta-blocker administration with color doppler. (C) Post-beta-blocker administration
  without color doppler. (D) Post-beta-blocker administration with color doppler. Arrow:
  systolic anterior motion of mitral leaflet. In pre-beta-blocker echocardiography, severe
  eccentric mitral regurgitation can be seen due to systolic anterior motion of the mitral
  valve.
case_images: 10.1177_23247096211056491-fig2.jpg
case_images: PMC8851360_01_10.1177_23247096211056491-fig2.jpg
case_images: fig2-23247096211056491
case_images: Severe eccentric MR directed posteriorly and laterally, caused by SAM of anterior and posterior leaflets of the mitral valve, was also observed (Figure 1A and B; Figure 2A and B). The TOE recorded 2 minutes after the esmolol administration showed a critical reduction in intraventricular gradient and in SAM of the mitral valve (Figure 1C and D; Figure 2C and D), which in turn resulted in MR improvement.
case_images: Chronology and results.. Abbreviations: AIS, acute ischemic stroke; FIO2, fraction of inspired
  oxygen; LVOTO, left ventricle outflow tract obstruction; MAP, mean arterial pressure;
  Max grad, maximum gradient; MR, mitral regurgitation; NE, norepinephrine; PEEP, positive
  end-expiratory pressure; SAM, systolic anterior movement (of anterior mitral
  leaflet).
case_images: 10.1177_23247096211056491-fig3.jpg
case_images: PMC8851360_01_10.1177_23247096211056491-fig3.jpg
case_images: fig3-23247096211056491
case_images: The chronology and hemodynamic results of the intervention are summarized in Figure 3.