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Table 1 Baseline characteristics

From: Left ventricular outflow tract velocity time integral outperforms ejection fraction and Doppler-derived cardiac output for predicting outcomes in a select advanced heart failure cohort

 

Total study population (n = 100)

LVOT VTI < 8.1 cm, lowest tertile (n = 34)

LVOT VTI 8.1-9.0 cm, median tertile (n = 33)

LVOT VTI > 9.0 cm, highest tertile (n = 33)

P-value

Clinical characteristics

 Age (years)

73.53 ± 14.7

71.26 ± 15.3

74.82 ± 15.1

74.58 ± 13.8

0.547

 Gender (% male)

72

79.4

75.8

60.6

0.194

 Diabetes

27%

29.4%

24.2%

27.3%

0.892

 Hypertension

57%

52.9%

51.5%

66.7%

0.388

 Atrial Fibrillation

68%

77%

62%

67%

0.485

 Prior revascularization

50%

56%

49%

45%

0.679

 NYHA Class

    

0.643

  I

1.1%

3.1%

0%

0%

 

  II

41.5%

40.6%

33.3%

51.7%

 

  III

45.7%

43.8%

54.5%

37.9%

 

  IV

11.7%

12.5%

12.1%

10.3%

 

 Smoking

14%

11.8%

10%

21.2%

0.328

 Alcohol

17%

15%

24%

12%

0.385

 Illicit drugs

4%

6%

3%

3%

0.797

Medical Therapy

 Diuretics

68.7%

72.7%

72.7%

60.6%

0.472

 ACE/ARB

57.6%

64.7%

51.5%

56.3%

0.541

 Beta blocker

84%

82.4%

84.8%

84.8%

0.949

 Digoxin

28.3%

27.3%

30.3%

27.3%

0.951

 Spironolactone

32%

35.3%

39.4%

21.2%

0.251

 Statin

45.4%

41.2%

51.6%

43.8%

0.683

 CRT

31.6%

31.3%

43.3%

21.2%

0.169

 ICD

42.9%

51.5%

50.0%

27.3%

0.084

Objective Parameters

 SBP (mmHg)

114.57 ± 16.8

111 ± 17

113 ± 16

119 ± 17

0.128

 DBP (mmHg)

72.00 ± 14.4

70 ± 16

71 ± 14

74 ± 13

0.581

 HR (beats per minute)

82.93 ± 16.3

85.6 ± 18

80.9 ± 15

82.1 ± 16

0.481

 Weight (kg)

76.6 ± 19.2

77.2 ± 16

80 ± 24

73.1 ± 17

0.391

 Body mass index

25.8 ± 5

25.8 ± 5

26.4 ± 6

25.2 ± 5

0.657

 Hgb (g/dL)

13.28 ± 2.0

13.7 ± 1.7

12.9 ± 1.7

13.2 ± 2.5

0.205

 Creatinine (mg/dL)

1.40 ± 0.6

1.51 ± 0.8

1.46 ± 0.6

1.21 ± 0.4

0.101

 Blood urea nitrogen (mg/dL)

27.0 ± 14

25.8 ± 10

30.5 ± 18

24.9 ± 13

0.221

 Glomerular filtration rate < 60 ml/min

60.2%

67.7%

51.5%

62.1%

0.403

 Sodium (mEq/L)

137 ± 4

137 ± 4

137 ± 3

138 ± 3

0.270

 Cholesterol, total (mg/dL)

149 ± 41

142 ± 35

147 ± 41

158 ± 46

0.286

 QRS > 120 msec

51.2%

61.3%

46.2%

44.4%

0.364

Ejection fraction (%)

28.9 ± 17

25.1 ± 17

26.4 ± 11

35 ± 19

0.024

Mean PA pressure (mmHg)

47.7 ± 15

47.8 ± 16

48.2 ± 13

47.1 ± 15

0.961

LV end diastolic dimension (cm)

5.81 ± 1.3

6.06 ± 1.2

5.94 ± 1.1

5.42 ± 1.5

0.092

Aortic Stenosis

11.1%

15.2%

10.0%

10.0%

0.900

Aortic Insufficiency

16.2%

24.2%

21.2%

3.0%

0.060

Tricuspid Regurgitation*

51.5%

54.5%

51.5%

48.4%

0.738

Mitral Regurgitation*

61%

55.9%

75.8%

51.5%

0.302

  1. Legend: SD standard deviation, NYHA New York Heart Association; Diuretics furosemide, toresmide, bumetanide, ACE angiotensin converting enzyme, ARB angiotensin receptor blocker, CRT cardiac resynchronization therapy, ICD implantable cardiac defibrillator, SBP systolic blood pressure, DBP diastolic blood pressure, bpm beats per minute, GFR glomerular filtration rate, PA pulmonary artery, LV left ventricle
  2. *denotes meaningful valve disease classified as greater than mild