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
| 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% |
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.