Reduced Albuminuria and Potassemia Indicate Early Renal Repair Processes after Resynchronization Therapy in Cardiorenal Syndrome Type 2

Table 1

Selected demographic and clinical data and laboratory results of the study group prior to CRT implantation (Mann–Whitney U test with continuity correction).

Variable	CHF (n = 76)
	Median	Lower quartile	Upper quartile
Age, years	69	62.5	76
Female gender, n (%)	18 (23.68)
BMI, kg/m^2	28.2	25.4	31.8
Etiology of CHF, n (%)
CAD	49 (64.1)
DCM	23 (31.2)
Other	4 (4.7)
LVEF (%)	25	20	30
NT-proBNP, pg/ml	2916	1164	5918
NYHA II, n (%)	32 (42.11)
NYHA III, III/IV, or IV, n (%)	44 (57.89)
Intraventricular conduction disorders, n (%)
LBBB	59 (77.63)
100% percentage of right ventricular pacing	17 (22.37)
Chronic AF	26 (34.38)
Paroxysmal AF	18 (23.44)
QRS width, ms	160	147	187
CKD stadiums, n (%)
G1-G2	43 (56.58)
G3	30 (39.47)
G4	3 (3.95)
A1	48 (63.16)
A2	4 (5.26)
A3	24 (31.58)
Total cholesterol (mg/dl)	171	144	200
Cholesterol LDL (mg/dl)	94	78	117
Cholesterol HDL (mg/dl)	42	35	49
TG (mg/dl)	131	94	168
T2DM, n (%)	31 (48.44)
HA, n (%)	49 (76.56)
RAAS-Is used, n (%)	76 (100)
Statin used, n (%)	76 (100)

Abbreviations: BMI, body mass index; CHF, chronic heart failure; CKD, chronic kidney disease stadium by KDIGO 2012 [1]; CAD, coronary artery disease, DCM, dilated cardiomyopathy; LVEF, left ventricular ejection fraction; NT-proBNP, N-terminal pro-b-type natriuretic peptide levels were assessed; NYHA, New York Heart Association class; LBBB, left bundle branch block; RBBB, right bundle branch block; AF, atrial fibrillation; LDL, low-density lipoprotein; HDL, high-density lipoprotein; TG, triglycerides; T2DM, type 2 diabetes; HA, hypertension; RAAS-Is, renin-angiotensin-aldosterone system inhibiting drugs.