Limitations
The present study has some limitations. This is because we only studied
the perioperative time up until surgery and during the patients’ stay in
the ICU.
We did not need to use the transesophageal echo Doppler echocardiography
(TEDE), nevertheless the echocardiography continues to be limited by the
need of full-volume data sets to capture the entire region of interest,
which may not be possible in patients with irregular rhythms.
By analyzing the data with FloTrac/Vigileoď›› the additional
information related to cardiac function and peripheral oxygen supply can
be obtained during cardiac surgery.