Part of the Queen Elizabeth University Hospital, the 256 bed facility cares for children and young people up to the age of 16.
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It’s understood some patients in need of urgent surgery have been transferred to England due to the shortages.
A spokesperson for NHS Greater Glasgow and Clyde said: “Due to a short-term staffing gap caused by sickness absence and vacancies in a specialist service, we have paused paediatric cardiac surgery at the Royal Hospital for Children, Glasgow.
 “We envisage this to last no more than a few weeks.
 “A small number of patients will have their surgery undertaken in another UK Centre. We have well established pathways with carefully chosen UK expert sites for doing this.
“All transport, accommodation and living costs for the child and their family will be covered while they are away from home.
 “The temporary arrangement has been made in close conjunction and agreement with National Services Division who commission the service.”