10,000 HSE support staff at 38 hospitals are set to take part in 24 hours of industrial action, after there were no moves to break the deadlock between SIPTU and health service management side over pay.
While some contingency cover is being agreed at local level in the 38 affected hospitals, the strike is expected to disrupt scheduled inpatient procedures, scopes and theatre activity, as well as outpatient appointments and even catering.
Patients facing cancellations are being notified by individual hospitals, but the HSE has previously acknowledged that the dispute will ultimately contribute to longer waiting lists, as did the strike by nurses and midwives earlier this year.