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Comment
. 2022 Oct 21;119(4):635-637.
doi: 10.36660/abc.20220143.

Septal Ablation with Radiofrequency and the Use of New Technologies in Patients with Hypertrophic Cardiomyopathy in an Electrophysiology LaboratoryReply

[Article in English, Portuguese]
Muhieddine Chokr  1 , Marina Mayrink  1 , Pedro Mario Pinto Vandoni  1 , Pedro Vieira Linhares  1 , Italo Bruno Dos Santos Sousa  1 , Hélio José Castello Júnior  2 , Mauricio Scanavacca  1
Affiliations
Comment

Septal Ablation with Radiofrequency and the Use of New Technologies in Patients with Hypertrophic Cardiomyopathy in an Electrophysiology LaboratoryReply

[Article in English, Portuguese]
Muhieddine Chokr et al. Arq Bras Cardiol. .
No abstract available

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Figures

Figura 1
Figura 1. A) Mapa eletroanatômico Carto 3 do ventrículo direito e esquerdo. Pode-se observar o ponto de maior espessamento septal (25 mm). Os pontos em vermelho representam a região onde foi aplicada radiofrequência. B) Início da aplicação de radiofrequência. Os pontos amarelos representam as áreas a serem evitadas em que foi identificado sistema de condução. C) Hiperecogenicidade da região septal, avaliada continuamente com ecocardiografia intracardíaca durante a aplicação de radiofrequência. É possível identificar cateter em alça apoiado sobre a região septal. D) Ao término do procedimento, observado intenso edema na região septal, associado a hiperecogenicidade próximo a via de saída do ventrículo esquerdo.
Figura 1
Figura 1. ETE intraprocedimento com e sem color (a 150°): avaliação da valva mitral, identificação do SAM e sua localização. Nessa angulação conseguimos identificar mais facilmente o local de maior aceleração de fluxo e o grau do refluxo mitral.
Figura 2
Figura 2. Registro do Doppler contínuo com as curvas relacionadas à estenose aórtica e à obstrução subvalvar.
Figure 1
Figure 1. Carto 3-guided electroanatomic maps of the right and left ventricle. This picture shows the point with the largest septal thickness (25 mm). The points in red represent the region where the radiofrequency was applied. B) Beginning of the application of radiofrequency. The yellow points represent the areas to be avoided in which the conduction system was identified. C) Hyperechogenicity of the septal region, evaluated continually using the intracardiac echocardiogram during the application of radiofrequency. It is possible to identify the catheter in the strap resting on the septal region. D) At the end of the procedure, an intense edema is observed in the septal region, associated with hyperechogenicity near the left ventricle outflow tract.
Figure 1
Figure 1. Intra-procedure TEE with and without color (at 150°): evaluation of the mitral valve, identification of the SAM and its localization. From this angle, we were able to more easily identify the location of greater acceleration of the flow and the degree of mitral valve regurgitation.
Figure 2
Figure 2. Continuous Doppler image with the shapes related to aortic stenosis and subvalvar obstruction
See this image and copyright information in PMC

Comment on

References

Referências

    1. Valdigem BP, Correia EB, Moreira DAR, Bihan DL, Pinto IMF, Abizaid AAC, et al. Septal Ablation with Radiofrequency Catheters Guided by Echocardiography for Treatment of Patients with Obstructive Hypertrophic Cardiomyopathy: Initial Experience. 10.36660/abc.20200732.Arq Bras Cardiol. 2022;118(5):861–872. - PMC - PubMed
    1. Okumura Y, Watanabe I, Iso K, Nagashima K, Sonoda K, Sasaki N, et al. Clinical Utility of Automated Ablation Lesion Tagging Based on Catheter Stability Information (VisiTag Module of the CARTO 3 System) with Contact Force-Time Integral During Pulmonary Vein Isolation for Atrial Fibrillation. 10.1007/s10840-016-0156-z.J Interv Card Electrophysiol. 2016;47(2):245–252. - PubMed
    1. Lawrenz T, Lawin D, Radke K, Stellbrink C. Acute and Chronic Effects of Endocardial Radiofrequency Ablation of Septal Hypertrophy in HOCM. 10.1111/jce.15203.J Cardiovasc Electrophysiol. 2021;32(10):2617–2624. - PubMed
    1. Cooper RM, Shahzad A, Hasleton J, Digiovanni J, Hall MC, Todd DM, et al. Radiofrequency Ablation of the Interventricular Septum to Treat Outflow Tract Gradients in Hypertrophic Obstructive Cardiomyopathy: A Novel Use of CARTOSound® Technology to Guide Ablation. 10.1093/europace/euv302.Europace. 2016;18(1):113–120. - PubMed
    1. Crossen K, Jones M, Erikson C. Radiofrequency Septal Reduction in Symptomatic Hypertrophic Obstructive Cardiomyopathy. 10.1016/j.hrthm.2016.04.018.Heart Rhythm. 2016;13(9):1885–1890. - PubMed

References

    1. Chokr M, Mayrink M, Vandoni PMP, Linhares PV, Sousa IBS, Castello HJ, Júnior, et al. Septal Ablation with Radiofrequency and the Use of New Technologies in Patients with Hypertrophic Cardiomyopathy in an Electrophysiology Laboratory. Arq Bras Cardiol. 2022;119(4):634–637. - PMC - PubMed
    1. Lawrenz T, Lawin D, Radke K, Stellbrink C. Acute and Chronic Effects of Endocardial Radiofrequency Ablation of Septal Hypertrophy in HOCM. 10.1111/jce.15203.J Cardiovasc Electrophysiol. 2021;32(10):2617–2624. - PubMed

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