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- W2970352076 abstract "Background Complete tumor resection is a standard strategy in the surgical treatment of ventricular tachycardia (VT) associated with cardiac tumors. Recently, an intraoperative electroanatomic mapping system (CARTO) has enabled surgeons to target the localized arrhythmogenic substrate for partial resection and/or cryoablation in nonresectable cardiac tumors. Objective The purpose of this study was to evaluate the surgical procedures and late outcomes of the treatment of VT associated with cardiac tumors. Methods We examined six patients (age 1–65 years) who had undergone surgical treatment of VT associated with cardiac tumors between 2010 and 2016. The 4 pathologies of the cardiac tumors were lipoma 2, fibroma 2, hemangioma 1, and lymphoma 1. Intraoperative epicardial mapping using CARTO was performed in 5 patients(80%). Surgical procedures and long-term outcomes were evaluated. Results Arrhythmogenic substrates with abnormal electrograms, such as fractionated or late potential, were identified locally or circumferentially beside the tumor in every patient. Complete tumor resection with cryoablation was performed in 3 patients. Two patients underwent partial tumor resection with cryoablation. Cryoablation without tumor resection was performed in 1 patient. No mortality and morbidity occurred. Additional catheter ablation was required in 2 patients to treat occurrence of nonclinical VT and induction of clinical VT during hospital stay. Mean follow-up time was 90 ± 52.5 months. There was no recurrence of clinical VT. Conclusion The outcomes of surgical treatment of VT associated with cardiac tumors were excellent. Intraoperative CARTO mapping was beneficial to eliminate the VT substrates associated with nonresectable cardiac tumors. Complete tumor resection is a standard strategy in the surgical treatment of ventricular tachycardia (VT) associated with cardiac tumors. Recently, an intraoperative electroanatomic mapping system (CARTO) has enabled surgeons to target the localized arrhythmogenic substrate for partial resection and/or cryoablation in nonresectable cardiac tumors. The purpose of this study was to evaluate the surgical procedures and late outcomes of the treatment of VT associated with cardiac tumors. We examined six patients (age 1–65 years) who had undergone surgical treatment of VT associated with cardiac tumors between 2010 and 2016. The 4 pathologies of the cardiac tumors were lipoma 2, fibroma 2, hemangioma 1, and lymphoma 1. Intraoperative epicardial mapping using CARTO was performed in 5 patients(80%). Surgical procedures and long-term outcomes were evaluated. Arrhythmogenic substrates with abnormal electrograms, such as fractionated or late potential, were identified locally or circumferentially beside the tumor in every patient. Complete tumor resection with cryoablation was performed in 3 patients. Two patients underwent partial tumor resection with cryoablation. Cryoablation without tumor resection was performed in 1 patient. No mortality and morbidity occurred. Additional catheter ablation was required in 2 patients to treat occurrence of nonclinical VT and induction of clinical VT during hospital stay. Mean follow-up time was 90 ± 52.5 months. There was no recurrence of clinical VT. The outcomes of surgical treatment of VT associated with cardiac tumors were excellent. Intraoperative CARTO mapping was beneficial to eliminate the VT substrates associated with nonresectable cardiac tumors." @default.
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- W2970352076 date "2020-02-01" @default.
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- W2970352076 title "Surgical procedure for targeting arrhythmogenic substrates in the treatment of ventricular tachycardia associated with cardiac tumors" @default.
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- W2970352076 doi "https://doi.org/10.1016/j.hrthm.2019.08.025" @default.
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