Controlled interviews with the clinicians every 6 months of the intervention for checking the quality of the implanted device using biomedical imaging techniques that do not produce radiation.

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Moreover, every patient is going to be prescribed (for security) with: oral anticoagulants for 45 days and with two antiagregants for 6 months.

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After this 6 months the patient is not going to have the necessity of taking a pill everyday.