Percutaneous decommissioning of a HeartWare Ventricular Assist Device in a patient with myocardial recovery: a case report

    Authors

    Keywords

    left ventricular assist device, heart failure, mechanical circulatory support, dilated cardiomyopathy, occlude

    DOI

    https://doi.org/10.15836/ccar2024.443

    Full Text

    **Introduction:** Left Ventricular Assist Devices (LVADs) have become essential instruments in the treatment of advanced heart failure. Some patients on LVAD may experience myocardial recovery, which is uncommon, but opens up the possibility of discontinuing LVAD support. Minimally invasive percutaneous decommissioning has emerged as a potential approach for this process, and here we describe the course and the process of a first such case at our Institution. **Case report:** In 2015, a 48-year-old female patient was referred to our center due to advanced heart failure caused by dilated cardiomyopathy, necessitating the implantation of a HeartWare Ventricular Assist Device (HVAD) device as a bridge to candidacy. Following the implantation, the patient’s clinical condition significantly improved, with no complications related to the device or any infections in the follow up. Over time, her left ventricular function also gradually recovered, left ventricular ejection fraction (LVEF) reaching 50% and a left ventricular internal diastolic diameter of 5.0 cm. After thorough review, it was concluded that the patient had achieved responder status and decided that LVAD decommissioning was the most appropriate course of action, as previously described (1, 2). The procedure was performed under sedation with continuous transesophageal echocardiographic and fluoroscopic guidance. Following heparinization, the LVAD speed was reduced to the point of zero net device flow. Over a stiff wire a 10 × 40 mm balloon was inflated and held occluding the outflow graft. The patient was so observed for the next 20 minutes, without any deterioration. Then, a 14-mm vascular plug was placed, the LVAD was turned off, and the outflow graft thrombosed over the following 15 minutes, with all hemodynamic parameters remaining stable, ending the procedure. Echocardiography before discharge showed a stable LVEF of 45-50%. Six months later, the patient remains clinically stable. **Conclusion:** The bridge-to-recovery strategy in LVAD patients is a rare but highly desirable outcome. The minimally invasive percutaneous LVAD decommissioning in those patients is a safe and viable alternative to the conventional surgical explantation. Careful patient follow-up, selection, preparation and coordinated multidisciplinary approach are essential to the success.

    Literature

    1. Jain P, Kiernan MS, Couper GS, Brovman EY, Asber SR, Kimmelstiel C. Percutaneous Decommissioning of a Left Ventricular Assist Device in a Patient With Myocardial Recovery. JACC Case Rep. 2022;4(6):354–8. https://doi.org/10.1016/j.jaccas.2022.01.019
    2. Gerhard EF, Wang L, Singh R, Schueler S, Genovese LD, Woods A, et al. LVAD decommissioning for myocardial recovery: Long-term ventricular remodeling and adverse events. J Heart Lung Transplant. 2021;40(12):1560–70. https://doi.org/10.1016/j.healun.2021.08.001
    Cardiologia Croatica
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    Percutaneous decommissioning of a HeartWare Ventricular Assist Device in a patient with myocardial recovery: a case report

    Extended Abstract
    Issue11-12
    Published
    Pages443
    PDF via DOIhttps://doi.org/10.15836/ccar2024.443
    left ventricular assist device
    heart failure
    mechanical circulatory support
    dilated cardiomyopathy
    occlude

    Authors

    Mario Udovičić*ORCIDDubrava University Hospital, Zagreb, Croatia
    Nikola PavlovićORCIDDubrava University Hospital, Zagreb, Croatia
    Davor BarićORCIDDubrava University Hospital, Zagreb, Croatia
    Danijela GrizeljORCIDDubrava University Hospital, Zagreb, Croatia
    Irzal HadžibegovićORCIDDubrava University Hospital, Zagreb, Croatia
    Vanja Ivanović MihajlovićORCIDDubrava University Hospital, Zagreb, Croatia
    Hrvoje FalakORCIDDubrava University Hospital, Zagreb, Croatia
    Petra VitlovORCIDDubrava University Hospital, Zagreb, Croatia
    Igor RudežORCIDDubrava University Hospital, Zagreb, Croatia
    Šime ManolaORCIDDubrava University Hospital, Zagreb, Croatia

    *Correspondence email: mario.udovicic@gmail.com

    Full Text

    Introduction: Left Ventricular Assist Devices (LVADs) have become essential instruments in the treatment of advanced heart failure. Some patients on LVAD may experience myocardial recovery, which is uncommon, but opens up the possibility of discontinuing LVAD support. Minimally invasive percutaneous decommissioning has emerged as a potential approach for this process, and here we describe the course and the process of a first such case at our Institution.

    Case report: In 2015, a 48-year-old female patient was referred to our center due to advanced heart failure caused by dilated cardiomyopathy, necessitating the implantation of a HeartWare Ventricular Assist Device (HVAD) device as a bridge to candidacy. Following the implantation, the patient’s clinical condition significantly improved, with no complications related to the device or any infections in the follow up. Over time, her left ventricular function also gradually recovered, left ventricular ejection fraction (LVEF) reaching 50% and a left ventricular internal diastolic diameter of 5.0 cm. After thorough review, it was concluded that the patient had achieved responder status and decided that LVAD decommissioning was the most appropriate course of action, as previously described (1, 2). The procedure was performed under sedation with continuous transesophageal echocardiographic and fluoroscopic guidance. Following heparinization, the LVAD speed was reduced to the point of zero net device flow. Over a stiff wire a 10 × 40 mm balloon was inflated and held occluding the outflow graft. The patient was so observed for the next 20 minutes, without any deterioration. Then, a 14-mm vascular plug was placed, the LVAD was turned off, and the outflow graft thrombosed over the following 15 minutes, with all hemodynamic parameters remaining stable, ending the procedure. Echocardiography before discharge showed a stable LVEF of 45-50%. Six months later, the patient remains clinically stable.

    Conclusion: The bridge-to-recovery strategy in LVAD patients is a rare but highly desirable outcome. The minimally invasive percutaneous LVAD decommissioning in those patients is a safe and viable alternative to the conventional surgical explantation. Careful patient follow-up, selection, preparation and coordinated multidisciplinary approach are essential to the success.

    Literature

    1. 1.
      Jain P, Kiernan MS, Couper GS, Brovman EY, Asber SR, Kimmelstiel C. Percutaneous Decommissioning of a Left Ventricular Assist Device in a Patient With Myocardial Recovery. JACC Case Rep. 2022;4(6):354–8.DOI
    2. 2.
      Gerhard EF, Wang L, Singh R, Schueler S, Genovese LD, Woods A, et al. LVAD decommissioning for myocardial recovery: Long-term ventricular remodeling and adverse events. J Heart Lung Transplant. 2021;40(12):1560–70.DOI