Low-risk operations will begin again at Leeds General Infirmary today, following a review of the children's heart unit.
Surgery was suspended last month over concerns of death rates, the quality of surgery and staffing levels.
NHS England said an improvement in a number of areas would be required, as they continue to explore issues raised about the unit.
The first stage of the review which took place at the weekend advised that the quality of surgery and staffing were sufficient to allow a phased resumption of operations.
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