European journal of anaesthesiology
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Clinical Trial Observational Study
Significance of new Q waves and their location in postoperative ECGs after elective on-pump cardiac surgery: An observational cohort study.
The clinical significance of new pathological Q waves after on-pump cardiac surgery is uncertain. ⋯ The current analysis suggests that for patients undergoing elective on-pump cardiac surgery, only new pathological Q waves in V1 to V5 (anterior) in the 7th postoperative day ECG are associated with 12-month, all-cause mortality and/or MACE.
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Clinical Trial Observational Study
Evaluation of augmented pulse pressure variation using the Valsalva manoeuvre as a predictor of fluid responsiveness under open-chest conditions: A prospective observational study.
Pulse pressure variation (PPV) is a well known dynamic preload indicator of fluid responsiveness. However, its usefulness in open-chest conditions remains controversial. ⋯ Augmented PPV using a Valsalva manoeuvre can be used as a clinically reliable predictor of fluid responsiveness under open-chest condition.