Claudio A Bravo1, Justin A Fried2, Joshua Z Willey3, Azka Javaid2, Giulio M Mondellini2, Lorenzo Braghieri2, Heidi Lumish2, Veli K Topkara2, Yuji Kaku4, Lucas Witer4, Hiroo Takayama4, Koji Takeda4, Gabriel Sayer2, Nir Uriel2, Ryan T Demmer5, Yoshifumi Naka4, Melana Yuzefpolskaya2, Paolo C Colombo6. 1. Department of Medicine, Division of Cardiology, Columbia University, New York, New York; Department of Medicine, Division of Cardiology, University of Washington, Washington. 2. Department of Medicine, Division of Cardiology, Columbia University, New York, New York. 3. Department of Neurology, Columbia University, New York, New York. 4. Department of Surgery, Division of Cardiac Surgery, Columbia University, New York, New York. 5. Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York; Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota. 6. Department of Medicine, Division of Cardiology, Columbia University, New York, New York. Electronic address: pcc2001@cumc.columbia.edu.
Abstract
BACKGROUND: Heart failure predisposes to intracardiac thrombus (ICT) formation. There are limited data on the prevalence and impact of preexisting ICT on postoperative outcomes in left ventricular assist device patients. We examined the risk for stroke and death in this patient population. METHODS AND RESULTS: We retrospectively studied patients who were implanted with HeartMate (HM) II or HM3 between February 2009 and March 2019. Preoperative transthoracic echocardiograms, intraoperative transesophageal echocardiograms and operative reports were reviewed to identify ICT. There were 525 patients with a left ventricular assist device (median age 60.6 years, 81.8% male, 372 HMII and 151 HM3) included in this analysis. An ICT was identified in 44 patients (8.4%). During the follow-up, 43 patients experienced a stroke and 55 died. After multivariable adjustment, presence of ICT increased the risk for the composite of stroke or death at 6-month (hazard ratio [HR] 1.82, 95% confidence interval [CI] 1.00-3.33, P = .049). Patients with ICT were also at higher risk for stroke (HR 2.45, 95% CI 1.14-5.28, P = .021) and death (HR 2.36, 95% CI 1.17-4.79 P = .016) at 6 months of follow-up. CONCLUSIONS: The presence of ICT is an independent predictor of stroke and death at 6 months after left ventricular assist device implantation. Additional studies are needed to help risk stratify and optimize the perioperative management of this patient population.
BACKGROUND: Heart failure predisposes to intracardiac thrombus (ICT) formation. There are limited data on the prevalence and impact of preexisting ICT on postoperative outcomes in left ventricular assist device patients. We examined the risk for stroke and death in this patient population. METHODS AND RESULTS: We retrospectively studied patients who were implanted with HeartMate (HM) II or HM3 between February 2009 and March 2019. Preoperative transthoracic echocardiograms, intraoperative transesophageal echocardiograms and operative reports were reviewed to identify ICT. There were 525 patients with a left ventricular assist device (median age 60.6 years, 81.8% male, 372 HMII and 151 HM3) included in this analysis. An ICT was identified in 44 patients (8.4%). During the follow-up, 43 patients experienced a stroke and 55 died. After multivariable adjustment, presence of ICT increased the risk for the composite of stroke or death at 6-month (hazard ratio [HR] 1.82, 95% confidence interval [CI] 1.00-3.33, P = .049). Patients with ICT were also at higher risk for stroke (HR 2.45, 95% CI 1.14-5.28, P = .021) and death (HR 2.36, 95% CI 1.17-4.79 P = .016) at 6 months of follow-up. CONCLUSIONS: The presence of ICT is an independent predictor of stroke and death at 6 months after left ventricular assist device implantation. Additional studies are needed to help risk stratify and optimize the perioperative management of this patient population.
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