A verdict of death by natural causes has been recorded on a baby who died following a legal battle between his family and a hospital trust.
Ruth Winston-Jones said she is still concerned at Luke's care
Luke Winston-Jones died at Liverpool's Alder Hey hospital after the High Court allowed treatment to be withheld.
His family, from Holyhead, disagreed with doctors over the care Luke would receive if his condition worsened
His mother, Ruth Winston-Jones, said more "could and should have been done" to save her son's life.
In a statement issued through her legal team, she said she was considering what step to take to "ensure that the circumstances leading up to Luke's death are fully investigated".
Luke was diagnosed with the rare Edwards Syndrome which caused serious problems with his heart and breathing difficulties.
Medical experts had been concerned about the effects of aggressive resuscitation if Luke's condition worsened.
But Ms Winston-Jones did not want any measures ruled out in advance and took the case to the High Court in London.
In October 2004, doctors were given permission to withhold mechanical ventilation and Luke died the following month. His funeral was held at St Beuno's Church in Aberffraw, Anglesey.
Luke died of natural causes linked to his heart condition
After the inquest verdict on Monday, Ms Winston Jones' lawyer Muiris Lyons issued a statement.
He said: "Luke's mother Ruth understands the medical cause of Luke's death.
"However, she remains very concerned about the events leading up to his death and the availability or otherwise of appropriate forms of treatment including vital resuscitative equipment and the drug adrenaline.
"Ruth continues to believe that more could and should have been done to save Luke's life.
"In the light of the coroner's findings, Ruth will now consider what further steps she wishes to take in an effort to ensure that the circumstances leading up to Luke's death are fully investigated."
He added that the family thanked Liverpool coroner Andre Rebello for the "sympathetic way in which he has managed the inquest process".
The coroner found the cause of Luke's death was cardiac failure as a result of congenital heart disease linked his underlying condition.