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Table 1 Patient characteristics at the time of implantation (n = 22)

From: Controller and battery changes due to technical problems related to the HVAD® left ventricular assist device - a single center experience

Variable Patients with device malfunction n = 15 Patients without device malfunction n = 7 p-value
Age (years) 56 (50; 68) 64 (61; 64) 0.45
Gender (female) 3 (20) 1 (14%) 0.62
BSA (m2) 1.96 (1.76; 2.06) 1.95 (1.73; 2.22) 0.54
eGFR (mL/min/1.73 m2) 61 (51; 80) 36 (29; 44) 0.001
EF (%) 15 (15; 20) 20 (15;30) 0.16
Type of cardiomyopathy:    0.44
 Idiopathic 6 (40) 4 (57)  
 Ischemic 7 (46) 2 (29)
 Drug/alcohol abuse 1 (7) 1 (14)
 Other causes 1 (7) 0
Indication for HVAD® therapy:    0.44
 DT 5 (34) 2 (29)  
 BTT 2 (13) 2 (29)
 BTD 6 (40) 1 (14)
 BTD/DT 0 1 (14)
 BTD/BTT 2 (13) 1 (14)
  1. The baseline characteristics of the study patients at the time of implantation, comparing those who did (n = 15) vs. did not (n = 7) experience any device malfunction during follow-up
  2. Abbreviations: HVAD® HeartWare® left ventricular assost system, BSA Body surface area, eGFR Estimated glomerular filtration rate using the CKD-EPI (chronic kidney disease epidemiology collaboration), DT Destination therapy, BTT = Bridge to transplantation, BTD Bridge to decision, EF Ejection fraction
  3. Data are presented as median (interquartile range) or n (%)