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Table 1 Demographics and baseline characteristics of the participants

From: Effect of low-level laser physiotherapy on left ventricular function among patients with chronic systolic heart failure

Baseline characteristics

n = 27

 Age (years), mean ± SD

57.7 ± 6.89

 Gender, male n (%)

21 (77.8%)

 Body mass index, mean ± SD

23.6 ± 3.4

 Systolic blood pressure, mmHg, mean ± SD

119.37 ± 9.39

 Heart rate, bpm, mean ± SD

71.81 ± 5.04

NYHA classification

 NYHA III, n (%)

15 (55.6%)

 NYHA IV, n (%)

12 (44.4%)

6 MWT (m), mean ± SD

148.56 ± 38.54

Medical history

 Hypertension, n (%)

6 (22.2%)

 Diabetes mellitus, n (%)

15 (55.5%)

 Atrial fibrillation, n (%)

4 (14.8%)

 Family history with HF, n (%)

2 (7.4%)

 Smoker, n (%)

19 (70.3%)

Baseline medication

 ACE inhibitor, n (%)

17 (62.9%)

 ARB, n (%)

9 (33.3%)

 β-Blocker, n (%)

22 (81.4%)

 Sacubitril/valsartan, n (%)

1 (3.7%)

 Aldosterone antagonist, n (%)

11 (40.7%)

 Diuretic, n (%)

6 (22.2%)

 Statin, n (%)

22 (81.4%)

Echocardiographic parameters

 Diastolic dysfunction grade I, n (%)

2 (7.4%)

 Diastolic dysfunction grade II, n (%)

3 (11.1%)

 Diastolic dysfunction grade III, n (%)

22 (81.5%)

 LVEF%, mean ± SD

25.89 ± 7.4

 End-systolic volume mL, mean ± SD

126.8 ± 51.3

 End-diastolic volume mL, mean ± SD

190.7 ± 64.5

 E, cm/s, median (IQR)

100 (80–120)

 A, cm/s, median (IQR)

25 (30–50)

 E/A, median (IQR)

3.0 (2.3–3.66)

 E/E′ (cm/s), mean ± SD

17.48 ± 5.21

 Regurge volume/LA volume, mean ± SD

27.05 ± 9.31

 Vena contracta (mm), mean ± SD

4.72 ± 1.27

 PASP mmHg, mean ± SD

39.56 ± 8.62

NO level IU/ml, mean ± SD

4.05 ± 1.41

  1. NYHA—New York Heart Association, 6 MWT—six-minute walk test, LVEF—left ventricle ejection fraction, PASP—pulmonary artery systolic pressure, NO—nitric oxide, SD—standard deviation
  2. *Statistically significant