Hundreds of deaths in Wales annually could have been avoided established guidelines were followed to prevent blood clots, according to the Assembly's Health and Social Care Committee.
The Welsh Government says it welcomes the report and will consider its recommendations carefully.
"This is a substantial problem in relation to its scale" says the committee's chair Mark Drakeford AM.
"But it's a manageable problem. It's a problem that things can be done about, practical things, things that can be done today and are within the ability of the NHS to do".
More top news
The heavy rain will ease overnight, with mist and mild temperatures!
They were jailed for 45 years in total after North Wales Police uncovered £2m of imports which could have netted criminals a £1.2m profit a
A football fan from Rhyl is pleading for a Champions League final ticket after he gave his away because his flight was cancelled