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

Table 3

Laboratory parameters before radiofrequency ablation (RFA) for ventricular electrical storm depending on the short-term ablation result.

	Study population (n = 62)	Complete short-termsuccess (n = 48)	Partial short-termsuccess (n = 12)	RFA failure (n = 2)	value
hsTnI, ng/mL (normal range: <0.0156 for women; <0.0342 for man)	0.053 (0.029–0.150)	0.045 (0.024–0.161)	0.052 (0.031–0.076)	0.185 (0.079–0.290)	0.493
CK-MB, ng/mL (normal range: <3.1)	1.4 (0.9–2.6)	1.4 (0.9–3.4)	1.5 (1.1–1.6)	1.3 (1.1–1.4)	0.906
BNP before RFA, pg/mL (normal range: <159)	261 (145–728)	245 (133–482)	458 (168–1273)	526 (268–784)	0.339
BNP at hospital discharge, pg/mL (normal range: <159)	354 (176–495)	262 (159–509)	393 (369–495)	nd	1.000
Creatinine, mg/dL (normal range: 0.55–1.02)	1.17 (1.0–1.47)	1.18 (1.03–1.46)	1.08 (0.91–1.66)	1.2 (1.15–1.26)	0.894
Potassium, mmol/L (normal range: 3.5–5.1)	4.3 (4.0–4.5)	4.3 (4.0–4.5)	4.5 (4.1–4.8)	4.2 (4.2–4.2)	0.603
CRP, mg/L (normal range: <5.0)	3.4 (1.2–13.3)	3.7 (1.3–12.7)	2.2 (0.9–11.9)	7 (0.6–13.9)	0.782
Neutrophils × 10^9/L (normal range: 2.0–7.0)	4.9 (3.6–6.6)	5.1 (3.6–7.1)	4.8 (3.5–5.4)	5.5 (4.5–6.4)	0.613
Lymphocytes × 10^9/L (normal range: 1.0–3.0)	1.7 (1.2–2.3)	1.7 (1.2–2.2)	1.6 (0.9–2.5)	1.9 (1.9–2.0)	0.643
NLR (normal range: 1–3)	3.1 (1.9–4.5)	3.2 (1.9–4.5)	2.7 (1.9–4.9)	2.8 (2.3–3.4)	0.815
Hemoglobin, g/dL (normal range: 12.0–15.0)	13.4 (12.2–14.5)	13.6 (12.3–14.5)	12.6 (12.2–14.8)	12.5 (11.6–13.3)	0.574
Platelets × 10^9/l (normal range: 150–410)	203 (172–241)	213 (173–250)	195 (174–206)	155 (133–177)	0.164
TSH, uU/mL (normal range: 0.35–4.94)	1.7 (0.8–2.9)	1.7 (0.8–2.9)	1.5 (0.8–3.9)	1.8 (1.8–1.9)	0.961
FT4, pmol/L (normal range: 9.01-19.05)	15.3 (13.4–16.4)	15.2 (13.6–16.3)	14.4 (12.0–16.7)	17.4 (17.4–17.4)	0.495
ALT, UL (normal range: 5–34)	25 (19–37)	27 (22–40)	15 (14–24)	187 (44–330)	0.005
AST, U/L (normal range: <55)	24 (18–29)	25 (18–30)	22 (17–23)	39 (20–58)	0.346

ALT: alanine aminotransferase, AST: aspartate aminotransferase, BNP: brain natriuretic peptide, CK-MB: creatine kinase-myocardial band, CRP: C-reactive protein, FT4: free thyroxin, hsTnI: high‐sensitivity troponin I, NLR: neutrophil to lymphocyte ratio, TSH: thyroid stimulating hormone, nd: no data. Bold values are statistically significant values.