Luis AguinagaWalter A Bernal AranaAlejandro BravoMarcela SialleLucía AguinagaRoberto Quintana2026-03-222026-03-22202210.63600/vq5x1269https://doi.org/10.63600/vq5x1269https://andeanlibrary.org/handle/123456789/77864Cardiac stimulation is a widely growing specialty during the last decades. The number of implanted cardiac devices is higher; but it is not rare to find patients presenting contraindications and difficulties for the implantation of a device. The cardiac leadless devices technology is a promising option that offers better safety with less implant-related complications. Besides, it is capable of maintaining atrioventricular synchrony with a single-chamber device. In this brief communication, the authors report the first 4 implants of MICRA AV devices in Argentina.enMedicineCardiac pacingSpecialtyMedical emergencyImplantable cardioverter-defibrillatorarticle