The future of the Leeds Children's Heart Surgery unit will be debated in Parliament later.
The issue is being raised by Pudsey MP Stuart Andrew. The decision was taken earlier this year to end surgery in Leeds, forcing patients in the region to travel to Newcastle or Liverpool for treatment.
Last week, due to a request from councillors in Lincolnshire concerned about the closure of the Leicester unit, the Health Secretary ordered a review into the decision. The move has been welcomed by campaigners.
More top news
The official Twitter account backing the search for Madeleine McCann has blocked the account which supports the campaign to find Ben Needham
Weather starts to change overnight Sunday into Monday. Mild few days to come, but heavy showers at times. Improving later in the new week
Fine weekend once early mist clears, foggy night. Unsettled new week, windier also