The major trauma programme was established, following an independent expert panel report, public consultation and full endorsement by all 6 health boards in the region.
Sefydlwyd y rhaglen trawma mawr, yn dilyn adroddiad gan banel o arbenigwyr annibynnol, ymgynghoriad cyhoeddus a sêl bendith llawn pob un o chwe bwrdd iechyd y rhanbarth.