Abstract:
:Introduction: A preexisting mechanical mitral valve (MMV) is thought to be a thrombogenic risk factor after continuous-flow left ventricular assist device (CF-LVAD) implantation. We sought to evaluate the management and outcomes of preexisting MMVs in patients following CF-LVAD implantation.Areas covered: An electronic search was performed to identify the presence of an MMV at the time of CF-LVAD implantation. Of the 1,168 studies identified, only five studies consisting of seven CF-LVAD patients met the inclusion criteria. Patient-level data were extracted and analyzed.Expert opinion: The median patient age was 54 (IQR: 42-61) years and 71.4% (5/7) were male. Non-ischemic cardiomyopathy was the predominant etiology (83.3%, 5/6) of heart failure, and bridge-to-transplant the predominant indication (85.7%, 6/7) for CF-LVAD. Aortic valve prosthesis was present in 42.9% (3/7) of patients. Median time from MMV to CF-LVAD placement was 6.0 years (IQR: 1.3-15.0). The median lower limit of the INR range was 2.8 (IQR: 2.1-3.0) and upper limit of the INR range was 3.5 (IQR: 3.1-3.5). During a median follow-up time of 120 (IQR: 70-201) days, there were no major GI bleeds or clinically significant thromboembolic complications. With adequate anticoagulation, preexisting MMVs in CF-LVAD patients did not result in clinically significant thromboembolic events.
journal_name
Expert Rev Med Devicesjournal_title
Expert review of medical devicesauthors
Gordon JS,O'Malley TJ,Maynes EJ,Wood CT,Kalantri N,Morris RJ,Samuels LE,Massey HT,Tchantchaleishvili Vdoi
10.1080/17434440.2020.1754190subject
Has Abstractpub_date
2020-05-01 00:00:00pages
399-404issue
5eissn
1743-4440issn
1745-2422journal_volume
17pub_type
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journal_title:Expert review of medical devices
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journal_title:Expert review of medical devices
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journal_title:Expert review of medical devices
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journal_title:Expert review of medical devices
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