Phrenic nerve displacement by intrapericardial balloon inflation during epicardial ablation of ventricular tachycardia: Four case reports

Table 1 Reports published of various types of large balloons inserted into the pericardial space

Author	Number of cases	Procedure	Cardiomyopathy	Device used	Complications	Outcome
Buch E et al[13]	1	VT	ICM	18 mm × 40 mm (Meditech, Boston Scientific)	None	Arrhythmia-free at 10 mo
Biase et al[10]	2	VT	1 ICM – 1 NICM	25 mm × 40 mm (NA)	None	No VT at 9 ± 3 mo
Kumar et al[14]	5	VT	5 NICM	18 mm × 20 mm (NMT, Boston Scientific); 18-20 mm esophageal balloon (Hercules 3, Cook)	1 pleuro-pericardial fistula and pericarditis	No VT recurrence at median follow-up 13 mo
Fan et al[5]	1	VT	NICM	18 mm × 60 mm (Braun Medical)	None	No acute VT inducibility

VT: Ventricular tachycardia; ICM: Ischemic cardiomyopathy; NICM: Nonischemic cardiomyopathy.