Numbers of SSc patients in whom pulmonary artery systolic pressure (PASP) could not be evaluated by echo-Doppler in studies identified by the literature search.
| Study | No. (%) of Patients in Whom PASP Could not be Evaluated | Reasons for Inability to Evaluate PASP | Quality of PAH/PH Definition/involvement of Patients without PAH/PH |
|---|---|---|---|
| Kiatchoosakun 2007 | 18/155 (12) | Poor tricuspid velocity | C2, patients without PAH/PH included |
| Hachulla 2005 | 114/570 (20) | Insufficient quality in 23, lack of TR in 91 | A1 (echo for screen only), patients without PAH/PH included |
| Wigley 2005 | 127/669 (19) | Tricuspid regurgitant flow could not be identified on Doppler | C2, patients without PAH/PH included |
| Gindzienska-Sieskiewicz 2005 | 27/53 (51) | Lack of adequate velocity profiles of tricuspid regurgitation | C2, consecutive SSc patients with and without PAH/PH |
| Ulanet 2003 | 17/80 (21) | No detailed data | C2, patients without PAH/PH included |
| Giunta 2000 | 7/77 (9) | — | D2, patients without PAH/PH included |
| Denton 1997 | 13/33 (39) | Lack of TR | A2, patients without PAH/PH included |
| including 6/21 (29) | A2, only patients with PAH/PH by RHC | ||
| Murata 1997 | 55/135 (43) | Lack of adequate velocity profiles of tricuspid regurgitation | C2/D2, patients without PAH/PH included |
| Battle 1996 | 1/34 (3) | — | C2, patients without PAH/PH included |
| Koh 1996 | 10/17 (59) | No detailed data | C2, only patients with PH by echo (n = 17) confirmed by RHC (n = 4) |
| Candell-Riera 1996 | 53/72 (74) | Insufficient quality of echo images in 9 and lack of TR in 44 | C2, patients without PAH/PH included; only SlSc |
| Murata 1992 | 43/71 (61) | Insufficient quality of images due to PF or trunkal skin thickening in 6, lack of TR in 30 | A2, patients without PAH/PH included |
| Smith 1979 | 42/54 (78) | — | D2, patients without PAH/PH included |
* Data reported for visualization of pulmonic valve only. Echo: echocardiography; PAH: pulmonary arterial hypertension; PASP: pulmonary artery systolic pressure; PH: pulmonary hypertension; TR: tricuspid regurgitation; RHC: right-heart catheterization; lSSc: limited cutaneous systemic sclerosis.