<qa>  What was the result of a retrospective single-centre trial?However, previous clinical trials were heterogeneous in design, methods of screening, and study outcome. The overall quality of evidence is considered low. The systematic review highlights the limited available evidence for dysphagia following intubation and hence the need for high-quality prospective trials. A recent retrospective single-centre trial 2 in a tertiary care ICU demonstrated a high presence of dysphagia in mechanical ventilated MV patients following extubation. Screening was performed using bedside swallowing evaluation BSE. 