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Table 1 Clinical studies that achieved a significant relation of spectral tissue Doppler E/E' ratio with invasive pulmonary capillary wedge pressure or mean left ventricular diastolic pressure in patients with preserved left ventricular systolic function

From: Current clinical applications of spectral tissue Doppler echocardiography (E/E' ratio) as a noninvasive surrogate for left ventricular diastolic pressures in the diagnosis of heart failure with preserved left ventricular systolic function

Reference

Population study

Number of patients

r-value

LV ejection fraction

Sundereswan (1998)48

Heart transplants

50

0.8 (L)

56 ± 12%

Nagueh (1998)49

ICU/Catheterism

49

0.72 (L)

> 45%

Nagueh (1999)50

HCM

35

0.76 (L)

> 50%

Sohn (1999)51

Atrial fibrillation

27

0.79 (S)

53 ± 11%

Ommen (2000)45

Catheterism

64

0.47 (S)

> 50%

Kim (2000)52

Catheterism

167

0.74 (S)

> 50%

Gonzalez (2002)53

ICU

32

0.54 (L)

> 50%

Rivas-Gotz (2003)54

ICU/Catheterism

55

0.7 (L)

> 50%

Bruch (2004)57

Aortic stenosis

23

0.75 (S)

59 ± 11%

Bruch (2005)58

Diastolic HF

28

0.56 (A)

> 45%

Hadano (2005)59

Catheterism

65

0.54 (L)

> 50%

Paelinck (2005)60

Chronic hypertension

18

0.85 (S)

58 ± 7%

  1. Catheterism: clinically indicated catheterism; HCM: hypertrophic cardiomyopathy; HF: heart failure; ICU: intensive care unit; LV: left ventricular; (L): lateral E/E' ratio; (S): septal E/E' ratio; (A): average E/E' ratio.