Pre-specified outcomes must be followed
- 2 Downloads
To the Editor
The publication by Licker et al.  raises several considerable concerns. First, in the abstract the authors claim that this was a randomized controlled trial. This, however, is not the case. The article merely reports the findings of an a priori non-defined subset of patients in whom transesophageal echocardiographic (TEE) examination was of good quality following coronary artery bypass surgery with or without aortic valve replacement (AVR). These patients were part of a previously reported study by the same group of authors . The unequal number of patients in each group (46 vs. 54) documents the lack of randomization.
Second, the authors claim that the reported investigation in this subset of patients was pre-planned as per trial registration . This, again, is an incorrect statement. The respective trial registration lists as primary outcome measure 48 h postcardiotomy ventricular dysfunction (PCVD), and as secondary outcome measures intraoperative systolic and...
Compliance with ethical standards
Conflict of interest
The author does not have any conflict of interest.