A total of 548 patients are left waiting on hospital trolleys on Wednesday.
That is an increase of 57 on on Tuesday's figures.
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The university hospitals in Limerick, Cork and Galway are the most overcrowded on Wednesday.
Limerick has a total of 96 people on trollies while Cork has 58 and Galway has 55.
That is followed by St Vincent's University Hospital and Letterkenny University Hospital, which both have 41 people waiting for beds.
