Excision of a rare cardiac tumor aided by endocardial electroanatomical mapping

2021 ◽  
Author(s):  
John N. R. Massey ◽  
Stacey Bates ◽  
S. Kim Suvarna ◽  
James Richardson ◽  
Steven Hunter
Keyword(s):  
Cardiac Tumor ◽  
Electroanatomical Mapping

Abstract 17158: Intraoperative Electroanatomical Mapping and Histopathological Examination Revealed Mechanism of Monomorphic Ventricular Tachycardia associated with Primary Cardiac Tumor

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Hiroshige Murata ◽  
Yasushi Miyauchi ◽  
Takashi Nitta ◽  
Kenta Takahashi ◽  
Ippei Tsuboi ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Cardiac Tumor ◽  
Histopathological Examination ◽  
Therapeutic Option ◽  
Myocardial Cell ◽  
Complete Resection ◽  
Electroanatomical Mapping ◽  
Primary Cardiac Tumor ◽  
Unresectable Tumor ◽  
Histopathological Studies

Introduction: Ventricular tachycardia (VT) associated with a primary cardiac tumor is extremely rare. Complete resection of a tumor was reported to be effective in a treatment of this VT. However, the mechanism of the cardiac tumor-related VT (CT-VT) is still unknown, and the therapeutic strategy of the VT in patients with unresectable tumor is not determined. Methods and Results: Four patients (20 ± 15 years, 3 males) with CT-VT (fibroma in 2, lipoma in 1, and hemangioma in 1 patient) were investigated. All four patients developed repetitive forms of monomorphic VTs, which were reproducibly induced by programmed ventricular stimulation and terminated by burst pacing. These VTs exhibited a right bundle branch block QRS morphology (QRS duration, 160 ± 28 ms) with a pseudo-delta wave (75 ± 10 ms) at a cycle length of 330 ± 86 ms. Intraoperative electroanatomical mapping showed a radially spreading activation pattern originating from the epicardial border of the tumor, where fractionated and late potentials were detected during sinus rhythm. Histopathological studies of the sections from this border area revealed tumor infiltration to the surrounding myocardium and myocardial cell disorganization exhibiting myocardial disarray. In 2 patients in whom the cardiac tumor was completely resected, cryoablation was added to the resection line. In the remaining 2 patients in whom complete resection of the tumor was unfeasible, encircling cryoablation to entirely isolate the unresectable tumor was effective in suppressing their VTs. Conclusions: The mechanism of CT-VT is reentry localized at the epicardial border of the tumor. Myocardial disarray associated with infiltration of the cardiac tumor may be a substrate of this VT. Encircling cryoablation along the border of the tumor may be a therapeutic option for an unresectable CT-VT.

scholarly journals An improved window of interest for electroanatomical mapping of atrial tachycardia

2021 ◽  
Vol 13 (1) ◽  
pp. 102
Author(s):  
A. Mechulan ◽  
S. Bun ◽  
A. Masse ◽  
A. Peret ◽  
L. Leong-Feng ◽  
...  
Keyword(s):  
Atrial Tachycardia ◽  
Electroanatomical Mapping

scholarly journals Sinus node modification with an ultra high-density electroanatomical mapping system in inappropriate sinus tachycardia

EP Europace ◽  
2017 ◽  
Vol 19 (10) ◽  
pp. 1656-1656 ◽  
Author(s):  
Susanne Löbe ◽  
Jedrzej Kosiuk ◽  
Silke John ◽  
Sebastian Hilbert ◽  
Gerhard Hindricks ◽  
...  
Keyword(s):  
Sinus Tachycardia ◽  
Sinus Node ◽  
High Density ◽  
Electroanatomical Mapping ◽  
Inappropriate Sinus Tachycardia ◽  
Mapping System ◽  
Electroanatomical Mapping System ◽  
Sinus Node Modification

scholarly journals Primary Cardiac Tumor Presenting as Obstruction of the Left Ventricular Outflow Tract

2004 ◽  
Vol 68 (10) ◽  
pp. 961-963 ◽  
Author(s):  
Yoshikazu Ohara ◽  
Yoshikazu Hiasa ◽  
Shinobu Hosokawa ◽  
Koji Yamaguchi ◽  
Riyo Ogura ◽  
...  
Keyword(s):  
Cardiac Tumor ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Primary Cardiac Tumor ◽  
Left Ventricular Outflow

Histology of Thrombectomy Specimen Reveals Cardiac Tumor Embolus in Cryptogenic Young Stroke

2018 ◽  
Vol 27 (4) ◽  
pp. e70-e72 ◽  
Author(s):  
Kizhakkaniyakath Abdu Salam ◽  
Mohammed Rafeeque ◽  
Hisham Hashim ◽  
Neena Mampilly ◽  
Mohan Leslie Noone
Keyword(s):  
Cardiac Tumor ◽  
Tumor Embolus ◽  
Young Stroke

Subdivided left atrium mimicking a cardiac tumor

1999 ◽  
Vol 68 (2) ◽  
pp. 235-238 ◽  
Author(s):  
Kazuhiro Shimaya ◽  
Akira Kurihashi ◽  
Naohide Tanaka ◽  
Masafumi Higashidate
Keyword(s):  
Left Atrium ◽  
Cardiac Tumor
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