Recurrence of Left Ventricular Outflow Tract Obstruction Requiring Alcohol Septal Ablation after Transcatheter Aortic Valve Implantation

Figure 2

(a–c) No systolic anterior motion (SAM) was observed before transcatheter aortic valve implantation (TAVI). (d–f) Five minutes after TAVI, there was no SAM or pressure gradient. (g) Fifteen minutes later, SAM clearly emerged. (h) Transthoracic echocardiography showed severe mitral regurgitation. (i) Pressure gradient was >50 mmHg at the left ventricular outflow tract.

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