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Arterial Pulsatility in Patients with Continuous Flow Left Ventricular Assist Device Support: Comparing Velocity and Mean Arterial Pressure
An increasing number of end-stage heart failure patients are supported by continuous-flow Left Ventricular Assist Devices (cfLVADs) as a bridge to heart transplantation. Accurate assessment of arterial pulsatility remains a challenge because of diminished pulse pressure, which itself can be associated with adverse events such as gastrointestinal bleeding and stroke. Our study investigates the value of simultaneous arterial pressure and arterial blood velocity assessment in cfLVAD patients.
Source: The Journal of Heart and Lung Transplantation - March 20, 2021 Category: Transplant Surgery Authors: S. Emmanuel, A. Adji, D. Robson, P. Jain, C. Hayward Tags: 1138 Source Type: research

Bridge from Central Extracorporeal Life Support to Durable LVAD in Acute Heart Failure Elevates a Risk of Stroke Long-Term
This study aimed to review outcomes of this bridge strategy from central ECLS to durable LVAD, as compared to those of primary LVAD implantation.
Source: The Journal of Heart and Lung Transplantation - March 20, 2021 Category: Transplant Surgery Authors: K. Tonai, S. Fukushima, N. Tadokoro, N. Fukushima, T. Fujita Tags: (994) Source Type: research

Cerebral Vasoreactivity in HeartMate 3 Patients
While rates of stroke have declined with the HeartMate3 (HM3) continuous flow (CF) left ventricular assist device (LVAD), the impact of non-pulsatile flow and artificial pulse physiology on cerebrovascular function is not known. We hypothesized that improved hemodynamics and artificial pulse physiology of HM3 patients would augment cerebrovascular metabolic reactivity (CVR) compared with HeartMate II (HMII) CF-LVAD and heart failure (HF) patients.
Source: The Journal of Heart and Lung Transplantation - May 21, 2021 Category: Transplant Surgery Authors: Eric J. St öhr, Ruiping Ji, Koichi Akiyama, Giulio Mondellini, Lorenzo Braghieri, Alberto Pinsino, John R. Cockcroft, Melana Yuzefpolskaya, Amrin Amlani, Veli K. Topkara, Hiroo Takayama, Yoshifumi Naka, Nir Uriel, Koji Takeda, Paolo C. Colombo, Barry J. Tags: Original Research Article Source Type: research

Comparing Velocity and Mean Arterial Pressure to Assess Pulsatility in Patients with Continuous Flow Left Ventricular Assist Devices
An increasing number of end-stage heart failure patients are supported by continuous-flow Left Ventricular Assist Devices (cfLVADs). In these patients, accurate assessment of arterial pulsatility remains a challenge because of diminished pulse pressure. Limited pulsatility in modern cfLVADs itself can be associated with adverse events such as stroke. Our study investigates the value of simultaneous arterial pressure and arterial blood velocity assessment in cfLVAD patients.
Source: The Journal of Heart and Lung Transplantation - April 1, 2022 Category: Transplant Surgery Authors: S. Emmanuel, A. Adji, P. Jansz, C. Hayward Tags: (871) Source Type: research

Right heart failure after left ventricular assist device implantation – from prediction to action
In this issue of the Journal, Read and colleagues1 report the use of peak stroke volume index (SVI) during pre-procedure vasodilatory testing as a predictor of early right heart failure (RHF) after left ventricular assist device (LVAD) implantation. They retrospectively examine 70 patients from three institutions who underwent pre-implant nitroprusside vasodilator testing. Indications for pre-operative vasodilator testing were elevated pulmonary vascular resistance, pulmonary arterial wedge pressure, or systolic pulmonary artery pressure.
Source: The Journal of Heart and Lung Transplantation - August 31, 2022 Category: Transplant Surgery Authors: Sameer K Singh, Koji Takeda Tags: Editorial Source Type: research

Impact of Perioperative Sarcopenia and Dysphagia on LVAD Related Complications
Sarcopenia, as defined by decline in muscle quantity/quality, is prevalent in heart failure and associated with high morbidity and mortality. Sarcopenic dysphagia is caused by sarcopenia in the whole body and swallowing-related muscles. We investigated the impact of perioperative sarcopenia and dysphagia on postoperative pneumonia (PNA), stroke, gastrointestinal bleeding (GIB) and 30-d readmission after LVAD.
Source: The Journal of Heart and Lung Transplantation - April 1, 2023 Category: Transplant Surgery Authors: M. Nishikawa, M.R. Carey, A. Ladanyi, G.M. Mondellini, A. Pinsino, K. Antler, E. Goldberg, J. Hastie, K. Clerkin, G.T. Sayer, N. Uriel, K. Takeda, P.C. Colombo, M. Yuzefpolskaya Tags: (765) Source Type: research

Detection of inflow obstruction in left ventricular assist devices by accelerometer: A porcine model study
Left ventricular assist devices (LVAD) provide circulatory blood pump support for severe heart failure patients. Pump inflow obstructions may lead to stroke and pump malfunction. We aimed to verify in vivo that gradual inflow obstructions, representing prepump thrombosis, are detectable by a pump-attached accelerometer, where the routine use of pump power (PLVAD) is deficient.
Source: The Journal of Heart and Lung Transplantation - April 4, 2023 Category: Transplant Surgery Authors: Didrik Lilja, Itai Schalit, Andreas Espinoza, Arnt Eltvedt Fiane, Gry Dahle, Helen Littorin-Sandbu, Fred-Johan Pettersen, Kristoffer Engh Russell, Amrit Paul Singh Thiara, Ole Jakob Elle, Per Steinar Halvorsen Tags: Original Pre-Clinical Science Source Type: research

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