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https://www.readbyqxmd.com/read/29032897/prevnar-13-vaccine-failure-in-a-mouse-model-for-vitamin-a-deficiency
#1
Rhiannon R Penkert, Amy Iverson, Jason W Rosch, Julia L Hurwitz
Streptococcus pneumoniae (pneumococcus) is responsible for serious pediatric respiratory infections, and kills close to one million children under the age of five each year. Unfortunately, the Prevnar-13 vaccine (PCV-13) that is used to protect children from the serious consequences of pneumococcus infections is not always successful. Given that vitamin A deficiency (VAD) is known to affect children in both developed and developing countries, we asked if VAD could be responsible, at least in part, for PCV-13 vaccine failures...
November 1, 2017: Vaccine
https://www.readbyqxmd.com/read/29032583/third-generation-ventricular-assist-device-mid-term-outcomes-of-the-heartware-hvad-in-pediatric-patients
#2
Mustafa Pac, Sinan Sabit Kocabeyoglu, Umit Kervan, Dogan Emre Sert, Serhat Koca, Ibrahim Ece, Feyza Aysenur Pac
The HeartWare HVAD is a small, third generation continuous flow pump that is intracorporeally placed for support of a failing ventricle in adult patients. This device is small in size when compared to other left ventricular assist devices and can therefore be used in smaller sized pediatric patients. We present our initial experience using the HVAD as a bridge to heart transplantation in the pediatric population. We performed a retrospective, single center, nonrandomized review of 17 pediatric patients who underwent HVAD implantation between June 2013 and March 2016...
October 15, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28991810/inferior-transplant-outcomes-of-adolescents-and-young-adults-bridged-with-ventricular-assist-device
#3
Raheel Rizwan, Roosevelt Bryant, Farhan Zafar, Chet R Villa, Angela Lorts, David L Morales
Adolescents, who are thought to have compliance issues, are well known to have poor heart transplant (HTx) outcomes. This "effect" has recently been demonstrated to extend to age 29. The study sought to investigate whether the poor outcomes for HTx related to adolescent age are also observed in recipients who are bridged to transplant (BTT) with a ventricular assist device (VAD) and whether this effect extends beyond the standard definition of adolescent age 12-18 years. All HTx BTT with a VAD in recipients 8-39 years were identified in the United States Organ Sharing (UNOS) database (1 January 2005 to 30 June 2016)...
October 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28965736/second-annual-pediatric-interagency-registry-for-mechanical-circulatory-support-pedimacs-report-pre-implant-characteristics-and-outcomes
#4
Elizabeth D Blume, Christina VanderPluym, Angela Lorts, J Timothy Baldwin, Joseph W Rossano, David L S Morales, Ryan S Cantor, Marissa A Miller, James D St Louis, Devin Koehl, David L Sutcliffe, Pirooz Eghtesady, James K Kirklin, David N Rosenthal
BACKGROUND: Expanded use of pediatric ventricular assist devices (VADs) has decreased mortality in children awaiting heart transplantation. Pediatric Interagency Registry for Mechanical Circulatory Support (Pedimacs), a National Heart, Lung, and Blood Institute-sponsored North American database, provides a platform to understand this emerging population. METHODS: Between September 2012 and September 2016, patients aged younger than 19 years who underwent VAD implantation were enrolled in Pedimacs...
July 4, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28958965/bnp-response-during-berlin-heart-%C3%A2-support-in-child-a-case-report
#5
Nicolas Beranger, Charlotte Veyrat-Durebex, Philippe Pouard, Bernard Lacour, Stéphanie Vicca
A five-year-old boy is presented to Necker hospital for a dilated hypertrophic cardiomyopathy. The implantation of the Berlin Heart Excor(®) ventricular assist device was performed. This pediatric-sized Berlin Heart(®) device provides mechanical support for young infants and children of all ages to sustain the failing cardiac circulation over several months, until either recovery of myocardial function or heart transplantation. It remains difficult to identify patients with sufficient recovery and the right time for explantation of the Berlin Heart(®)...
October 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28921937/ventricular-assist-device-use-in-single-ventricle-congenital-heart-disease
#6
REVIEW
Waldemar F Carlo, Chet R Villa, Ashwin K Lal, David L Morales
As VAD have become an effective therapy for end-stage heart failure, their application in congenital heart disease has increased. Single ventricle congenital heart disease introduces unique physiologic challenges for VAD use. However, with regard to the mixed clinical results presented within this review, we suggest that patient selection, timing of implant, and center experience are all important contributors to outcome. This review focuses on the published experience of VAD use in single ventricle patients and details physiologic challenges and novel approaches in this growing pediatric and adult population...
November 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28905470/outcomes-of-berlin-heart-excor-%C3%A2-pediatric-ventricular-assist-device-support-in-patients-with-restrictive-and-hypertrophic-cardiomyopathy
#7
Jennifer A Su, Jondavid Menteer
The outcomes of pediatric ventricular assist device support in patients with diastolic heart failure have not been well described. This study reviews the North American experience with Berlin Heart EXCOR(®) ventricular assist device implants in children with such physiology. The Berlin Heart clinical database was reviewed. Patients with primary diastolic dysfunction are included in this study. Twenty pediatric patients with restrictive cardiomyopathy (n = 13), hypertrophic cardiomyopathy (n = 3), or congenital heart disease with restrictive physiology (n = 4) who were supported with EXCOR(®) were identified...
September 14, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28856823/talking-with-caregivers-of-children-living-in-the-community-with-ventricular-assist-devices
#8
Courtney Petruik, Cheryl Mack, Jennifer Conway, Holger Buchholz, Michael van Manen
A VAD is a mechanical pump used to support the functioning of a failing heart. As a pediatric therapy, a VAD is used as a temporary solution for poor heart function, a bridge to transplantation or recovery, or a destination therapy. The goal of this qualitative study was to explore the perspectives of family and professional caregivers of children who are supported by VADs in outpatient settings. Semi-structured interviews were conducted with 22 caregivers of school-aged children discharged home on VAD support...
November 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28844524/mechanical-thrombectomy-for-pediatric-acute-stroke-and-ventricular-assist-device
#9
Robert Clinton Stowe, Peter Kan, Day Burruss Breen, Sonika Agarwal
BACKGROUND: Certain pediatric populations have increased risk of ischemic strokes, including those with cardiac disease and those dependent on mechanical circulatory devices such as ventricular assist devices. Due to their need for chronic anticoagulation, patients with mechanical circulatory devices are not candidates for systemic thrombolysis and thus treatment of acute ischemic stroke is limited. CASE: A 9-year-old boy with a ventricular assist device presented with acute onset of dense right hemiparesis, global aphasia, and a pediatric NIHSS score of 23...
August 24, 2017: Brain & Development
https://www.readbyqxmd.com/read/28821330/systemic-atrioventricular-valve-excision-and-ventricular-assist-devices-in-pediatric-patients
#10
Deipanjan Nandi, Kelley D Miller, Carley M Bober, Tami M Rosenthal, Lisa M Montenegro, Joseph W Rossano, J William Gaynor, Christopher E Mascio
BACKGROUND: Continuous-flow ventricular assist devices (CF VADs) designed for adults are increasingly used in pediatric patients. However, there is greater risk of device inflow obstruction as a result of size and anatomy. METHODS: We reviewed all cases of systemic atrioventricular valve (AVV) excision with HeartWare HVAD (HeartWare, Framingham, MA) implantation in the systemic ventricle performed at our institution from November 2015 to May 2016. RESULTS: AVV excision with CF VAD implantation was undertaken in 3 patients...
August 16, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28777412/atypical-use-of-picc-in-infants-and-small-children-a-unicentric-experience
#11
Filippo Bernasconi, Clelia Zanaboni, Andrea Dato, Andrea Dolcino, Michela Bevilacqua, Luigi Montagnini, Nicola Disma
INTRODUCTION: The peripherally inserted central catheters (PICCs) are vascular access devices (VAD) that are increasingly being used in the pediatric population. If a small vein caliber prevents positioning the catheter in the arm, the following step is to position the same catheter in the supraclavicular area, which can be defined as an off-label use or "atypical" approach, first described by Pittiruti. MATERIALS AND METHODS: We retrospectively reviewed PICC positioning with puncture-site in the supra-clavicular area ("atypical" PICC insertion) and then tunneled on the chest...
July 29, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28765741/experience-with-mechanical-circulatory-support-for-medically-intractable-low-cardiac-output-in-a-pediatric-intensive-care-unit
#12
Jung Bin Park, Jae Gun Kwak, Hong-Gook Lim, Woong-Han Kim, Jeong Ryul Lee, Yong Jin Kim
BACKGROUND AND OBJECTIVES: Mechanical circulatory support with extracorporeal membrane oxygenation (ECMO) and ventricular assist device has always been the optimal choice for treating the majority of medically intractable low cardiac output case. We retrospectively investigated our institution's outcomes and variables associated with a high risk of mortality. SUBJECTS AND METHODS: From 1999 to 2014, 86 patients who were of pediatric age or had grown-up congenital heart disease underwent mechanical circulatory support for medically intractable low cardiac output in our pediatric intensive care unit...
July 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28737196/-results-of-a-national-program-of-pediatric-heart-transplantation-strengths-and-weakness
#13
Pedro Becker, Santiago Besa, Sergio Riveros, Rodrigo González, Alfonso Navia, Paulina Dellepiane, Daniel Springmuller, Gonzalo Urcelay
Pediatric heart transplantation is an effective therapy to treat advanced heart failure in children. OBJECTIVES: To analyze the immediate and mid-term results of pediatric patients listed for heart transplantation. PATIENTS AND METHODS: Registration of patients admitted to our transplant protocol between October 2001 and July 2016 were reviewed, analyzing demographic data, diagnosis, status at the time of listing, waiting time until transplantation, donor data, use of ventricular assist device, hemodynamic data, complications and global mortality...
June 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28734448/alternative-strategy-for-biventricular-assist-device-in-an-infant-with-hypertrophic-cardiomyopathy
#14
John C Dykes, Olaf Reinhartz, Christopher S Almond, Vamsi Yarlagadda, Jenna Murray, David N Rosenthal, Katsuhide Maeda
We report an infant with hypertrophic cardiomyopathy who underwent biventricular assist device placement with two 15-mL Berlin Heart EXCOR pediatric ventricular assist devices using an alternative atrial cannulation strategy. The systemic circulation was supported by left atrium (LA) to aorta cannulation. The LA was accessed through the right atrium by extending a 6-mm EXCOR cannula with a Gore-Tex graft connected to an atrial septal defect. The pulmonary circulation was supported with cannulation of the right atrium to pulmonary artery...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28708210/particle-image-velocimetry-tests-on-pediatric-45-cc-and-30-cc-ventricle-assist-devices-effects-of-heart-rate-on-vad-operation
#15
Dariusz Witkowski, Damian Obidowski, Piotr Reorowicz, Daniel Jodko, Krzysztof Jozwik
BACKGROUND: This study investigated flow analysis inside pediatric ventricle assist devices (VADs) designed and manufactured at the Foundation for Cardiac Surgery Development (FRK), Zabrze, Poland. The main goal of the experiment was to define the minimal heart rate admissible in clinical practice. METHODS: The flow was directed by mechanical, single-disc valves developed at the Lodz University of Technology, Institute of Turbomachinery in Lodz, Poland. VAD operation conditions under different heart rates were analyzed...
July 8, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28696878/asynchronous-pumping-of-a-pulsatile-ventricular-assist-device-in-a-pediatric-anastomosis-model
#16
Bryan C Good, William J Weiss, Steven Deutsch, Keefe B Manning
BACKGROUND: Both pulsatile and continuous flow ventricular assist devices are being developed for pediatric congenital heart defect patients. Pulsatile devices are often operated asynchronously with the heart in either an "automatic" or a fixed beat rate mode. However, most studies have only investigated synchronized ejection. METHODS: A previously validated viscoelastic blood solver is used to investigate the parameters of pulsatility, power loss, and graft failure in a pediatric aortic anastomosis model...
July 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28682718/the-ventricular-assist-device-in-the-life-of-the-child-a-phenomenological-pediatric-study
#17
Michael A van Manen
What is it like for a child to live with an artificial heart? The use of some medical therapies in children requires developmental considerations, is associated with psychosocial consequences, and calls for ethical sensitivities. A critical case is the ventricular assist device (VAD), a mechanical pump used to support the functioning of a failing heart. As a pediatric therapy, the device can be used as a temporary solution for poor heart function, a bridge to transplantation or recovery, or as a destination therapy...
May 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28673108/melody-transcatheter-pulmonary-valve-placement-in-a-heartmate-ii-patient
#18
Tabitha G Moe, Linda Staley, Joseph N Graziano
Transcatheter pulmonary valve placement is emerging as a standard therapy for dysfunctional right ventricular outflow tract conduits. The Melody transcatheter pulmonary valve is indicated for use in the management of pediatric and adult patients with right ventricular outflow tract conduits measuring at least 16 mm in diameter. This is the first reported case of placement in a patient with a left ventricular assist device. We outline the preprocedural evaluation process, the procedural methods, and the outcomes of a successful implantation in a complex patient...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28669438/heading-toward-the-future-of-pediatric-heart-failure-with-continuous-flow-ventricular-assist-devices
#19
EDITORIAL
Ryan R Davies
No abstract text is available yet for this article.
June 9, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28657928/insights-into-pediatric-ventricular-assist-device-selection-adverse-events-and-outcomes-a-favorable-evolution
#20
Joshua Sparks, Bradley B Keller
No abstract text is available yet for this article.
July 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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