Koji Takeda
Columbia University Medical Center
Internal medicineSurgeryCardiologyRetrospective cohort studyIntensive care medicineHemodynamicsCardiogenic shockExtracorporeal membrane oxygenationHeart failureVentricular assist deviceHeart transplantationPopulationTransplantationContinuous flowIn patientMyocardial infarctionStrokeMedicineCohortCirculatory system
527Publications
26H-index
2,593Citations
Publications 534
Newest
#1Alyyah Malick (Columbia University)
#2Y. Ning (Columbia University)H-Index: 2
Last. Koji Takeda (Columbia University)H-Index: 26
view all 10 authors...
Abstract null null Background null De novo aortic insufficiency (AI) is a common adverse event following continuous flow left ventricular assist device (LVAD) placement and is associated with morbidity and mortality. This study aims to compare the development of de novo AI between HeartMate 3 and HeartMate II LVAD recipients. null null null Methods null A retrospective review was conducted of clinical characteristics and serial echocardiograms (1 month, 6 months, and 1 year post-implantation) of...
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#1Darryl Abrams (Columbia University)H-Index: 27
#2Graeme MacLaren (University Health System)H-Index: 31
Last. Kiran Shekar (UQ: University of Queensland)H-Index: 25
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Rates of survival with functional recovery for both in-hospital and out-of-hospital cardiac arrest are notably low. Extracorporeal cardiopulmonary resuscitation (ECPR) is emerging as a modality to improve prognosis by augmenting perfusion to vital end-organs by utilizing extracorporeal membrane oxygenation (ECMO) during conventional CPR and stabilizing the patient for interventions aimed at reversing the aetiology of the arrest. Implementing this emergent procedure requires a substantial investm...
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#1Atsushi Kainuma (CUMC: Columbia University Medical Center)H-Index: 5
#2Joseph Sanchez (Columbia University)H-Index: 5
Last. Koji Takeda (CUMC: Columbia University Medical Center)H-Index: 26
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Background The number of patients with adult congenital heart disease (ACHD) who require orthotopic heart transplantation has increased rapidly in the past 2 decades. This study examined heart transplant outcomes of patients with ACHD who had previous cardiac surgery by using data from the United Network for Organ Sharing database. Methods Between January 2008 and March 2019, patients with ACHD who underwent previous cardiac surgery and subsequent heart transplantation were identified from the U...
3 CitationsSource
#1Serge KobsaH-Index: 3
#2Koji TakedaH-Index: 26
Last. Hiroo TakayamaH-Index: 58
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#1Robert N. Sladen (Columbia University)H-Index: 21
#2Mark Shulman (Monash University)H-Index: 14
Last. Koji Takeda (Columbia University)H-Index: 26
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Abstract null null Background null : There is a paucity of data on depression, anxiety and post-traumatic stress disorder (PTSD) after left ventricular assist device (LVAD) implantation. We designed an observational study to integrate these with functional capacity and health-related quality of life (HR-QOL) in surviving LVAD patients. null null null Methods null : Consenting patients between one month and 9 years post-LVAD implantation (n = 121) were screened for functional capacity (WHO Disabi...
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#1Peter J. Kennel (NewYork–Presbyterian Hospital)H-Index: 12
#2Heidi Lumish (NewYork–Presbyterian Hospital)
Last. Nir Uriel (NewYork–Presbyterian Hospital)H-Index: 51
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Aims null We aimed to detail the early clinical experience with pVAD 5.5 at a large academic medical centre. Impella® 5.5 (Abiomed) is a temporary peripherally inserted left ventricular assist device (pVAD) used for the treatment of cardiogenic shock (CS). This system has several modifications aimed at improving deliverability and durability over the pVAD 5.0 system, but real-world experience with this device remains limited. null Methods and results null We collected clinical and outcome data o...
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#1Atsushi Kainuma (CUMC: Columbia University Medical Center)H-Index: 5
#2Y. Ning (Columbia University)H-Index: 2
Last. Koji Takeda (CUMC: Columbia University Medical Center)H-Index: 26
view all 10 authors...
OBJECTIVE In 2018, the United Network for Organ Sharing (UNOS) introduced new criteria for heart allocation. This study sought to assess the impact of this change on waitlist and posttransplant outcomes in adult congenital heart disease (ACHD) recipients. METHODS Between January 2010 and March 2020, we extracted first heart transplant ACHD patients listed from the UNOS database. We compared waitlist and post-transplant outcomes before and after the policy change. RESULTS A total of 1206 patients...
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#1Kevin J. Clerkin (Columbia University)H-Index: 17
#2Jan M. Griffin (Columbia University)H-Index: 4
Last. Paolo C. Colombo (Columbia University)H-Index: 53
view all 15 authors...
Background null Conditional survival (CS) is a dynamic method of survival analysis that provides an estimate of how an individual's future survival probability changes based on time post-transplant, individual characteristics, and post-transplant events. This study sought to provide post-transplant CS probabilities for heart transplant recipients based on different prognostic variables and provide a discussion tool for the providers and the patients. null Methods null Adult heart transplant reci...
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#1Diana T. Ruan (CUMC: Columbia University Medical Center)
#2Maryjane FarrH-Index: 27
Last. Koji TakedaH-Index: 26
view all 8 authors...
Current guidelines recommend serial right heart catheterization (RHC) to survey pulmonary hypertension in patients awaiting heart transplant. However, the role and impact of this surveillance is unclear in patients with a left ventricular assist device (LVAD). We reviewed our surveillance RHC protocol to determine whether useful data were obtained to justify the risks of serial invasive procedures (i.e., excessive bleeding). Between January 2015 and December 2018, 78 patients who received an LVA...
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#1Atsushi Kainuma (Kyoto Prefectural University of Medicine)H-Index: 5
#2Keiichi ItataniH-Index: 17
Last. Koji TakedaH-Index: 26
view all 13 authors...
The aim of this study was to evaluate the fluid dynamics in the aortic valve and proximal aorta during continuous-flow left ventricular assist device (LVAD) support using epiaortic echocardiography and vector flow mapping technology. A total of 12 patients who underwent HeartMate 3 implantation between December 2018 and February 2020 were prospectively examined. The wall shear stress (WSS) on the ascending aorta, aortic root, and aortic valve was evaluated before and after LVAD implantation. The...
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