Preliminary results on the prediction of countershock success with fibrillation power.
In a study of artifact-free ventricular fibrillation episodes in 54 patients, 28 of whom experienced return of spontaneous circulation (ROSC), the power of different indicators to predict the ROSC was compared. Taking the average of sensitivity, specificity and positive and negative predictive value, the dominant frequency reaches 76%, the mean amplitude 72% and fibrillation power 71%. There is little correlation between the three indicators.
Hamprecht
F A
FA
Laboratory of Physical Chemistry, Swiss Federal Institute of Technology, ETH Zentrum, 8092 Zurich, Switzerland. hambrecht@stat.math.ethz.ch
Jost
D
D
Rüttimann
M
M
Calamai
F
F
Kowalski
J J
JJ
D004554:Electric Countershock; D004562:Electrocardiography; D006323:Heart Arrest / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D011237:Predictive Value of Tests; D014693:Ventricular Fibrillation / Q000503:physiopathology* / Q000628:therapy*