Lead cardiologist for East Midlands Congenital Heart Centre Dr Aidan Bolger is hopeful that the Glenfield children's heart unit can be saved.
Save Our Surgery activist and former patient Joe Barry, 16, said he was glad about the decision to suspend the closure of his local heart unit at Leeds General Infirmary.
"If I was born and this unit wasn't here I wouldn't have survived [the journey] to Newcastle," he said.
"It saved my life and I can't let this happen to anyone else.
"The news today, it's great. All the things that we've put forward to have a look at, it's all happening. After three years of fighting they're finally listening to us."
Lisa Rushworth, whose son Jack was treated at Leeds, said she hoped the hospital would now have a chance to make its case based "on more statistics and actual facts".
Jack, 11, said: "They've looked after me really well."
Members of the Save Our Surgery campaign group have welcomed the decision not to close a childrens' heart unit in Leeds.
Spokeswoman Sharon Cheng said that the Health Secretary's comments earlier today "completely vindicated" the stand taken by the group:
We are pleased and relieved that the Health Secretary has decided that a new review is necessary before NHS England can decide where children’s heart surgery services should reside in England and Wales.
His comments about the Safe & Sustainable process and outcome completely vindicate the action that we took to challenge this, and demonstrate that exposing the flaws in the review was the right and necessary thing to do ...
The trauma experienced by patients and families across our Region throughout the Safe & Sustainable process, as acknowledged by the Health Secretary, must never be repeated.
Health Minister Anna Soubry MP is not sure that the suspension of the review into Glenfield Hospital's children's heart unit is "a matter of celebration". She said that this came about because "people raised concerns of varying levels" about the "flawed" process.
She did not promise that Glenfield would retain it's children's heart surgery. But she said she hoped that whatever decision was made it was done in "the best possible way", with the "best evidence" and with "transparency".
Campaigners demanding that their local children's heart surgery hospitals in England remain open won a partial victory today as the Health Secretary suspended a controversial review.
Jeremy Hunt admitted the initial decision to close units in Leeds, London and Leicester was based on faulty data.
But he said the review would be revisited and that some services would still have to shut.
ITV News reporter Martha Fairlie explains more:
Health Secretary Jeremy Hunt said he was clear the clinical case for changes to how children's heart surgery units are run remains, despite today's suspension of plans to close three units.
Speaking to the House of Commons, Mr Hunt said the independent review he instigated, following complaints from units where closure was recommended, still stressed the "case for change."
Shortly before the announcement by the Health Secretary, Liz Kendall MP questioned David Cameron about Glenfield Hospital's children's heart unit.
NHS England welcomed Jeremy Hunt's decision to suspend planned closures of three children's heart surgery units and promised to lead plans to rethink how care can be improved.
Professor Sir Bruce Keogh, Medical Director for NHS England said:
We welcome the review and NHS England will now study its recommendations in full to learn from them. We will institute a new process that recognises the very strong case for redesigning services to meet the demands of the future whilst addressing the legitimate concerns in our local communities.
Plans to close three children's heart surgery units were suspended by Health Secretary Jeremy Hunt today.
Addressing the House of Commons he said the review was based on "flawed analysis", saying:
The outcome of safe and sustainable review was based on a flawed analysis..and leaves too many questions about sustainability and implementation. This is serious criticism.
I therefore accept their recommendation that the proposals cannot go ahead in their current form, and am suspending the review today.
ITV News Central, Political Correspondent, Alison MacKenzie understand that the Health Secretary is expected to call for a further review of children's heart surgery units this afternoon.
Last July, the decision was taken to close three of the 10 specialist child heart surgery units in England in a move to streamline paediatric heart services.
Glenfield Hospital in Leicester, Leeds General Infirmary and the Royal Brompton in Chelsea, West London were earmarked for closure.
Campaigners in Leicester had hoped the decision to close the only children's heart surgery unit in the East Midlands would be overturned today but it is likely that Jeremy Hunt will call for further consultation before a final decision is made.