Western Well being ICU Director Professor Craig French confirmed there had been cases on the Footscray and Sunshine hospitals in current weeks.
He pressured, nevertheless, it was uncommon and mentioned sufferers have been solely being despatched residence if it was secure.
"Sufferers may even wait a number of days earlier than they're discharged from intensive care and by that point they're truly able to go residence," French mentioned.
"Nobody is being discharged early or something like that however it's a reflection of the general pressure the well being system is below presently."
French mentioned when no beds have been accessible, he had additionally been compelled to maintain sufferers in intensive care.
The subvariants and mutations of COVID-19
A mix of COVID-19 hospitalisation rising and healthcare staff isolating because of the virus has created stress in hospitals throughout the state.
Final night time, the Royal Kids's Hospital warned of six-hour waits as a consequence of demand.
"It is positively daunting to consider what's forward however my expertise as a pupil nurse has ready me effectively," pupil nurse Alana Hrehorsen mentioned.
It comes a day after the state authorities introduced hundreds of nursing and midwifery college students would quickly be deployed to hospitals throughout Melbourne and regional Victoria.
Nearly 30 hospitals will profit from this system, some embody; Grampians Well being Ballarat, Austin Well being, Royal Kids's Hospital and Bendigo Well being.
Victorian Premier Daniel Andrews mentioned the announcement was a "important enhance" to assist all healthcare staff.