Clinical and Laboratory Predictors of Long-Term Outcomes after Catheter Ablation for a Ventricular Electrical Storm

Table 2

Clinical characteristics of patients with serious complications of the radiofrequency ablation (RFA) performed due to ventricular electrical storm.

Variable	P.J.	N.W.	Z.M.	O.C.	M.J.	P.P.
Sex	Male	Male	Female	Male	Male	Male
Age at RFA, years	77	67	64	66	69	55
Complication	Ischemic stroke	Complete AV block	Pulmonary oedema	Complete AV block	Aorto-atrial fistula	Transient complete AV block
Management	Mechanical thrombectomy	ICD program change (including AV delay optimization under echocardiography)	Infusion of pressor amines, respiratory therapy	ICD program change, then ICD VR upgrade to CRT-D	Observation-spontaneousclosure of the fistula	Observation-spontaneousresolution of the AV block
Clinical VT, bpm	185	115	150	210	130	150
Underlying heart disease	ICM	DCM	ICM	DCM	ICM	ICM
LVEF, %	35	30	20	20	20	25
Charlson comorbidity index, median	5	4	5	1	3	2
Follow-up, days	15	38	1	236	59	37
NLR	5.58	1.29	2.32	1.83	3.96	2.05

AV: atrioventricular, CRT-D: implantable cardiac resynchronization therapy (CRT) defibrillator, DCM: dilated cardiomyopathy, ICD: implantable cardioverter defibrillator, ICM: ischemic cardiomyopathy, LVEF: left ventricular ejection fraction, NLR: neutrophil to lymphocyte ratio, RFA: radiofrequency ablation, VT: ventricular tachycardia.