King Salman Humanitarian Aid and Relief Center (KSrelief), in cooperation with the Muslim World League, continued its voluntary medical campaign for open heart surgery and catheterization in the Islamic Republic of Mauritania for the year 2021. Since the beginning of the campaign, the volunteer medical team performed 50 heart catheterizations successfully. It is worth mentioning that the project is one of the humanitarian projects, implemented by the Kingdom of Saudi Arabia, represented by the KSrelief, in a number of needy countries with the aim of providing treatment to patients from families with low income.