Echocardiography Guided Liwen Procedure™ for the treatment of obstructive hypertrophic cardiomyopathy in a patient with prior aortic valve replacement surgery: Liwen procedure for intra-myocardial radiofrequency ablation

Echocardiography. 2018 Aug;35(8):1230-1232. doi: 10.1111/echo.14040. Epub 2018 Jun 5.

Abstract

We successfully treated a patient who was diagnosed of having hypertrophic obstructive cardiomyopathy after the aortic valve replacement surgery for the concomitant aortic stenosis. We report this first in kind new procedure exclusively developed in our center, Liwen procedureTM (percutaneous intramyocardial septal radiofrequency ablation), for patients with left ventricular outflow tract obstruction in spite of maximal medical therapy. The procedure was performed under transthoracic echo guidance. We discussed the technical details, safety, and effectiveness with corresponding images. The patient did well one year after the procedure without LVOT obstruction or arrhythmia.

Keywords: 2D echocardiography; Liwen procedure; cardiac imaging; cardiomyopathy hypertrophic; percutaneous intramyocardial septal radiofrequency ablation.

Publication types

  • Case Reports

MeSH terms

  • Aortic Valve Stenosis / complications
  • Aortic Valve Stenosis / surgery*
  • Cardiomyopathy, Hypertrophic / diagnosis
  • Cardiomyopathy, Hypertrophic / etiology
  • Cardiomyopathy, Hypertrophic / surgery*
  • Catheter Ablation / methods*
  • Echocardiography / methods*
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Myocardium
  • Surgery, Computer-Assisted / methods*
  • Thoracoscopy / methods*
  • Transcatheter Aortic Valve Replacement / methods*