This was reported by the press service of the Catalan club.
It is reported that the Argentine will undergo diagnostic and therapeutic procedures under the supervision of cardiologist Josep Brugada.
During this time, a decision will be made on the further recovery of the player.
Leaving the field in the game against Alaves, the Argentinean is holding his chest and experiencing breathing problems.
Acting head coach of Barcelona Sergi Barjuan said after the match that Aguero felt a little dizzy.
Earlier it became known about the state of health of Aguero after hospitalization.