Key result
Transmural filling pressure estimated using intrapericardial pressure correlated with left ventricular stroke work index (r=0.59) and increased significantly after pericardiocentesis (p<0.05).
Why the study?
Does intrapericardial pressure (IPP) or right atrial pressure (RAP) provide a better estimate of true extracardiac pressure for calculating left ventricular transmural filling pressure during pericardiocentesis in patients with subacute cardiac tamponade?
Observational (n=10)
Does intrapericardial pressure (IPP) or right atrial pressure (RAP) provide a better estimate of true extracardiac pressure for calculating left ventricular transmural filling pressure during pericardiocentesis in patients with subacute cardiac tamponade?
Effect estimate: r = 0.59
In subacute cardiac tamponade, intrapericardial pressure is superior to right atrial pressure for estimating true extracardiac pressure and calculating left ventricular transmural filling pressure during pericardiocentesis.
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May support IPP over RAP for transmural pressure estimates in tamponade; hypothesis-generating and requires prospective validation.
Chester M. Boltwood (1987) conducted an observational in subacute cardiac tamponade (n=10). Pericardiocentesis was evaluated on Correlation of TMFP1 (PWP - IPP) with left ventricular stroke work index (r = 0.59). Transmural filling pressure estimated using intrapericardial pressure correlated with left ventricular stroke work index (r=0.59) and increased significantly after pericardiocentesis (p<0.05).
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