In:
Cardiology, S. Karger AG, Vol. 95, No. 3 ( 2001), p. 161-163
Abstract:
〈 i 〉 Background: 〈 /i 〉 Since the development of a Swan-Ganz thermodilution ejection fraction catheter several studies have been published which compare this technique for obtaining right ventricular ejection fraction (RVEF 〈 sub 〉 TD 〈 /sub 〉 ) with alternative methods. However, the reliability of RVEF 〈 sub 〉 TD 〈 /sub 〉 measurements under exercise conditions remains undetermined. Therefore, the aim of the present study was a comparative evaluation of RVEF 〈 sub 〉 TD 〈 /sub 〉 with the established gated blood pool method (RVEF 〈 sub 〉 GBP 〈 /sub 〉 ) under exercise conditions. 〈 i 〉 Methods and Results: 〈 /i 〉 Twenty-two patients with different cardiac diseases underwent right heart catheterization, including RVEF 〈 sub 〉 TD 〈 /sub 〉 and simultaneous RVEF 〈 sub 〉 GBP 〈 /sub 〉 determination at rest and during supine bicycle exercise. Linear regression analysis showed a significant correlation between RVEF 〈 sub 〉 TD 〈 /sub 〉 and RVEF 〈 sub 〉 GBP 〈 /sub 〉 at rest (r = 0.73, p ≤ 0.0005) and during exercise (r = 0.74, p ≤ 0.0005). A Wilcoxon analysis showed a high probability of agreement of RVEF 〈 sub 〉 TD 〈 /sub 〉 and RVEF 〈 sub 〉 GBP 〈 /sub 〉 at rest and exercise (level of significance for error of the 0 hypothesis of 95.9/73.3%). 〈 i 〉 Conclusion: 〈 /i 〉 The thermodilution ejection fraction catheter provides a useful device for reliable, repetitive and safe RVEF measurements, not only at rest but also under exercise conditions. This seems to be clinically important, because by it means RVEF, as a sensitive parameter of primary or secondary right ventricular dysfunction, can be determined in the course of standard right heart catheterization.
Type of Medium:
Online Resource
ISSN:
0008-6312
,
1421-9751
Language:
English
Publisher:
S. Karger AG
Publication Date:
2001
detail.hit.zdb_id:
1482041-9
