Table 1 Patient characteristics for the entire cohort

Median age (range)—yr

66 (20–81)

58 (20–72)

Sex—no. (%)

 Male

22 (92%)

9(90%)

 Female

2 (8%)

1 (10%)

Ethnicity—no. (%)

 Asian

3 (13%)

2 (20%)

 Hispanic

1 (4%)

1 (10%)

 Non-hispanic black

2 (8%)

1 (10%)

 Non-hispanic white

18 (75%)

6 (60%)

BMI (range)—avg no

29 (18–43)

28 (18–36)

Etiology of Shock- no. (%)

 Acute MI

11 (46%)

5 (50%)

 HFrEF

8 (33%)

5 (50%)

 Cardiotomy

5 (21%)

0

Functional Status—no. (%)

 Bedbound

18 (69%)

7 (70%)

 OOB/Walking

8 (31%)

3 (30%)

LVEF—avg %

21%

16%

Comorbidities—no. (%)

 Atrial Fibrillation

1 (4%)

0

 CAD (h/o PCI/CABG)

10 (42%)

5 (50%)

 CKD

4 (17%)

1 (10%)

 COPD

1 (4%)

0

 Diabetes Mellitus

5 (21%)

3 (30%)

 Hyperlipidemia

11 (46%)

4 (40%)

 Hypertension

14 (58%)

6 (60%)

 PVD

3 (13%)

0

 Stroke

2 (8%)

1 (10%)

 Tobacco use, current

4 (17%)

1 (10%)

End-organ function—avg (± SD)

 Hemoglobin—g/dL

11.0 (± 2.4)

10.7 (± 2.5)

 Platelets—u/µL

200 (± 127)

220 (± 184)

 Lactate—mmol/L

4.6 (± 4.0)

5.0 (± 3.5)

 Creatinine—mg/dL

2.1 (± 0.9)

1.7 (± 0.6)

 BUN- mg/dL

39 (± 24)

40 (± 25)

 AST/ALT—u/L

457(± 794) / 352(± 694)

559(± 1027) / 635(± 1043)

 Sodium

137 (± 7)

134 (± 9)

Hemodynamics—avg (± SD)

 RA—mmHg

12 (± 6)

12 (± 8)

 PA, systolic—mmHg

48 (± 13)

49 (± 16)

 PA, diastolic—mmHg

23 (± 6)

23 (± 8)

 PCWP—mmHg

26 (± 7)

25 (± 9)

 PAPi

2.2 (± 0.7)

4 (± 4)

 PA VO2—%

54.2 (± 11.9)

50.9 (± 11.3)

Hemodynamic support—avg (± SD)

 Vasopressors

2 (± 1)

2 (± 1)

Intubated—no. (%)

15 (58%)

5 (50%)

Implant site—no. (%)

 Direct

4 (15%)

0

 Left axillary artery

2 (8%)

1 (10%)

 Right axillary artery

20 (77%)

9 (1%)