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https://www.readbyqxmd.com/read/28107271/perioperative-care-of-the-patient-with-the-total-artificial-heart
#1
Jill Yaung, Francisco A Arabia, Michael Nurok
Advanced heart failure continues to be a leading cause of morbidity and mortality despite improvements in pharmacologic therapy. High demand for cardiac transplantation and shortage of donor organs have led to an increase in the utilization of mechanical circulatory support devices. The total artificial heart is an effective biventricular assist device that may be used as a bridge to transplant and that is being studied for destination therapy. This review discusses the history, indications, and perioperative management of the total artificial heart with emphasis on the postoperative concerns...
January 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28106960/a-novel-technique-to-exclude-the-left-ventricle-with-an-assist-device
#2
Stefan Klotz, Roza MeyerSaraei, Alex Frydrychowicz, Michael Scharfschwerdt, Andreas Koertge, Leon Putman, Hans Sievers
Left ventricular assist device implantation disrupts the natural intracavitary blood flow path through the heart, introducing flow patterns potentially associated with thrombosis, especially around the inflow cannula. We describe a novel technique for completely excluding the left ventricle with an assist device by using a cone shaped ring-reinforced prosthesis.
December 9, 2016: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28106959/implanting-permanent-left-ventricular-assist-devices-in-patients-on-veno-arterial-extracorporeal-membrane-oxygenation-support
#3
Diyar Saeed, Alexander Assmann, Muhammad Abdeen, Alexander Albert, Bujar Maxhera, Najla Sadat, Stephan Sixt, Artur Lichtenberg
Selected patients who fail to be weaned off temporary veno-arterial extracorporeal membrane oxygenation (VA-ECMO) support may be considered for long-term left ventricular assist devices (LVADs).  We describe here an LVAD implantation technique in patients with prior VA-ECMO support without the use of a cardiopulmonary bypass machine, which minimizes the intraoperative trauma and blood loss while still meeting all the goals of the standard procedure.
December 9, 2016: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28106747/design-of-wearable-breathing-sound-monitoring-system-for-real-time-wheeze-detection
#4
Shih-Hong Li, Bor-Shing Lin, Chen-Han Tsai, Cheng-Ta Yang, Bor-Shyh Lin
In the clinic, the wheezing sound is usually considered as an indicator symptom to reflect the degree of airway obstruction. The auscultation approach is the most common way to diagnose wheezing sounds, but it subjectively depends on the experience of the physician. Several previous studies attempted to extract the features of breathing sounds to detect wheezing sounds automatically. However, there is still a lack of suitable monitoring systems for real-time wheeze detection in daily life. In this study, a wearable and wireless breathing sound monitoring system for real-time wheeze detection was proposed...
January 17, 2017: Sensors
https://www.readbyqxmd.com/read/28106574/walking-ability-of-spinal-cord-injury-individuals-how-to-improve-it
#5
Morteza Sadeghi, Gholam Hussein Ghasemi, Mohammad Taghi Karimi
BACKGROUND: Subjects with Spinal Cord Injury (SCI) should use various assistive devices to stand and walk. Unfortunately they suffer from slow walking speed, high energy consumption, and too much force applied on upper limb while walking. The aim of this study was to determine the gap between the gait performance of SCI and normal subjects to conclude how the performance of SCI can be improved. METHOD: Three groups of SCI walked with orthosis, SCI walked without orthosis, and normal subjects were recruited in this study...
January 13, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28105542/hospice-in-heart-failure-why-when-and-what-then
#6
Jeffrey L Spiess
Hospice is a model of care for patients nearing the end of their lives that emphasizes symptom management, quality of life (QOL), and support of the patient and caregiving family through the death of the patient and the family's bereavement. It is associated with high patient and caregiver satisfaction and appears to not shorten lifespan for appropriately referred patients. Patients with advanced heart failure are being referred to hospice care more often than in the past, but the majority of deaths occur without this benefit...
January 20, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28104118/cerebrovascular-accident-rate-is-different-between-centrifugal-and-axial-flow-pumps-but-survival-and-driveline-infection-rates-are-similar
#7
M Kimura, K Nawata, O Kinoshita, H Yamauchi, Y Itoda, T Imamura, M Hatano, K Kinugawa, M Ono
OBJECTIVES: We analyzed the outcome of patients with implantable left ventricular assist devices (LVADs) at the University of Tokyo Hospital to compare those with centrifugal pumps (CE group: Duraheart and Evaheart) and those with axial-flow pumps (AX group: Heartmate II and Jarvik 2000). METHODS: A total of 68 patients who underwent implantation of LVADs (Duraheart: n = 15; Evaheart: n = 23; Heartmate II: n = 22; Jarvik 2000: n = 8) as a bridge to transplantation at our institution from May 2011 to April 2015 were retrospectively reviewed...
January 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28103907/the-association-between-fear-of-falling-and-smoothness-of-lower-trunk-oscillation-in-gait-varies-according-to-gait-speed-in-community-dwelling-older-adults
#8
Tsuyoshi Asai, Shogo Misu, Ryuichi Sawa, Takehiko Doi, Minoru Yamada
BACKGROUND: Fear of falling (FoF) is common in community-dwelling older adults. FoF and increased walking speed are associated with lower trunk oscillation during gait in older adults. We hypothesized that older adults with FoF would struggle to walk safely when instructed to walk faster than usual. METHODS: Participants included 260 community-dwelling older adults aged over 65 years (mean age = 71.9 ± 3.9 years) who were able to walk independently without an assistive device...
January 19, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28103760/the-use-of-a-direct-manufacturing-prosthetic-socket-system-in-a-rural-community-in-south-africa-a-pilot-study-and-lessons-for-future-research
#9
Liezel Ennion, Anton Johannesson, Anthea Rhoda
BACKGROUND: Challenges exist with the provision of appropriate mobility assistive devices in rural areas. The use of the direct manufacturing prosthetic socket system is a possible solution to these challenges. OBJECTIVES: The objective of this study was to test and explore the clients' perspectives with the application of this device. STUDY DESIGN: Within a mixed-methods approach, a longitudinal sequential explanatory design was applied. METHODS: The Orthotic and Prosthetic User's Survey was administered to explore the use of the direct manufacturing prosthetic socket system in terms of function, health-related quality of life and client satisfaction...
January 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28103510/exo-organoplasty-interventions-a-brief-review-of-past-present-and-future-directions-for-advance-heart-failure-management
#10
REVIEW
Waqas Nawaz, Farhan Ullah Khan, Muhammad Zahid Khan, Wang Gang, Mengqi Yang, Xiaoqian Liao, Li Zhang, Awais Ullah Ihsan, Amjad Khan, Lei Han, Xiaohui Zhou
Heart failure (HF) is a debilitating disease in which abnormal function of the heart leads to imbalance of blood demand to tissues and organs. The pathogenesis of HF is very complex and various factors can contribute including myocardial infarction, ischemia, hypertension and genetic cardiomyopathies. HF is the leading cause of death and its prevalence is expected to increase in parallel with the population age. Different kind of therapeutic approaches including lifestyle modification, medication and pacemakers are used for HF patients in NYHA I-III functional class...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28103049/controlling-kink-geometry-in-nanowires-fabricated-by-alternating-metal-assisted-chemical-etching
#11
Yun Chen, Liyi Li, Cheng Zhang, Chia-Chi Tuan, Xin Chen, Jian Gao, Ching-Ping Wong
Kinked silicon (Si) nanowires (NWs) have many special properties that make them attractive for a number of applications, such as microfluidics devices, microelectronic devices, and biosensors. However, fabricating NWs with controlled 3D geometry has been challenging. In this work, a novel method called alternating metal-assisted chemical etching, or alternating MACE, is reported for the fabrication of kinked Si NWs with controlled 3D geometry. By the use of multiple etchants with carefully selected composition, one can control the number of kinks, their locations, and their angles by controlling the number of etchant alternations and the time in each etchant...
January 19, 2017: Nano Letters
https://www.readbyqxmd.com/read/28102958/sliding-window-prior-data-assisted-compressed-sensing-for-mri-tracking-of-lung-tumors
#12
Eugene Yip, Jihyun Yun, Keith Wachowicz, Zsolt Gabos, Satyapal Rathee, B G Fallone
PURPOSE: Hybrid magnetic resonance imaging and radiation therapy devices are capable of imaging in real-time to track intrafractional lung tumor motion during radiotherapy. Highly accelerated magnetic resonance (MR) imaging methods can potentially reduce system delay time and/or improves imaging spatial resolution, and provide flexibility in imaging parameters. Prior Data Assisted Compressed Sensing (PDACS) has previously been proposed as an acceleration method that combines the advantages of 2D compressed sensing and the KEYHOLE view-sharing technique...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102475/prospective-evaluation-of-a-bivalirudin-to-warfarin-transition-nomogram
#13
Benjamin Hohlfelder, Katelyn W Sylvester, Jessica Rimsans, David DeiCicchi, Jean M Connors
Bivalirudin may cause a falsely prolonged international normalized ratio (INR) that complicates the discontinuation of bivalirudin when used as a bridge to warfarin. To prospectively validate our novel bivalirudin to warfarin transition nomogram, adult patients who received bivalirudin as a bridge to warfarin between July 2015 and June 2016 were prospectively evaluated, utilizing our predictive nomogram. The major outcome of our analysis was the correlation between the predicted change in INR upon bivalirudin discontinuation based on the nomogram, and the actual change in INR upon bivalirudin discontinuation...
January 19, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28100834/soft-robotic-sleeve-supports-heart-function
#14
Ellen T Roche, Markus A Horvath, Isaac Wamala, Ali Alazmani, Sang-Eun Song, William Whyte, Zurab Machaidze, Christopher J Payne, James C Weaver, Gregory Fishbein, Joseph Kuebler, Nikolay V Vasilyev, David J Mooney, Frank A Pigula, Conor J Walsh
There is much interest in form-fitting, low-modulus, implantable devices or soft robots that can mimic or assist in complex biological functions such as the contraction of heart muscle. We present a soft robotic sleeve that is implanted around the heart and actively compresses and twists to act as a cardiac ventricular assist device. The sleeve does not contact blood, obviating the need for anticoagulation therapy or blood thinners, and reduces complications with current ventricular assist devices, such as clotting and infection...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28100086/tracking-down-a-solution-exploring-the-acceptability-and-value-of-wearable-gps-devices-for-older-persons-individuals-with-a-disability-and-their-support-persons
#15
Brittany Williamson, Tammy Aplin, Desleigh de Jonge, Matthew Goyne
PURPOSE: To explore the acceptability and value of three wearable GPS devices for older persons and individuals with a disability and safety concerns when accessing the community. METHODS: This pilot study explored six wearers' and their support persons' experience of using three different wearable GPS devices (a pendant, watch, and mini GPS phone), each for a two-week period. RESULTS: Participants identified safety as the main value of using a wearable GPS device...
January 18, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28098295/spontaneous-decoration-of-silicon-surfaces-with-moox-nanoparticles-for-the-sunlight-assisted-hydrogen-evolution-reaction
#16
T-G Truong, C Mériadec, B Fabre, J-F Bergamini, O de Sagazan, S Ababou-Girard, G Loget
The immersion of oxide-free Si surfaces in MoS4(2-) aqueous solutions induces their spontaneous decoration with isolated MoOx nanoparticles (NPs). The process is versatile and was used on planar Si (100) as well as on antireflective Si (111) micro-pyramid (SimPy) arrays. The NP decoration does not affect the optical properties of the surface in the visible range and improves the performance of the hydrogen evolution reaction (HER) under simulated sunlight. The simplicity and the scalability of the technique make it highly promising for the fabrication of catalytically active photoelectrodes...
January 18, 2017: Nanoscale
https://www.readbyqxmd.com/read/28097937/an-assembly-type-master-slave-catheter-and-guidewire-driving-system-for-vascular-intervention
#17
Hyo-Jeong Cha, Byung-Ju Yi, Jong Yun Won
Current vascular intervention inevitably exposes a large amount of X-ray to both an operator and a patient during the procedure. The purpose of this study is to propose a new catheter driving system which assists the operator in aspects of less X-ray exposure and convenient user interface. For this, an assembly-type 4-degree-of-freedom master-slave system was designed and tested to verify the efficiency. First, current vascular intervention procedures are analyzed to develop a new robotic procedure that enables us to use conventional vascular intervention devices such as catheter and guidewire which are commercially available in the market...
January 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28097728/dabigatran-etexilate-in-a-vitamin-k-antagonist-non-responder-patient-during-heartware-hvad-support
#18
Andrea Baronetto, Paolo Centofanti, Matteo Attisani, Massimo Boffini, Davide Ricci, Erika Simonato, Mauro Rinaldi
We report a case of a patient supported with a HeartWare left ventricular assist device for idiopathic cardiomyopathy who was resistance to vitamin-K antagonists three months after implantation. The patient initially started low-molecular-weight heparin therapy and then, after the onset of an ischemic stroke, switched to dabigatran etexilate (DE). The patient had progressive recovery of cardiac function for which the device was explanted. No thrombotic or bleeding events occurred during DE therapy.
January 17, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28096288/mid-regional-pro-atrial-natriuretic-peptide-to-predict-clinical-course-in-heart-failure-patients-undergoing-cardiac-resynchronization-therapy
#19
Mattia Arrigo, Quynh A Truong, Jackie Szymonifka, Mercedes Rivas-Lasarte, Heli Tolppanen, Malha Sadoune, Etienne Gayat, Alain Cohen-Solal, Frank Ruschitzka, James L Januzzi, Jagmeet P Singh, Alexandre Mebazaa
AIMS: Cardiac resynchronization therapy (CRT) induces reverse cardiac remodelling in heart failure (HF), but many patients receiving CRT remain non-responders. This study assessed the role of amino-terminal-pro-B-type natriuretic peptide (NT-proBNP), mid-regional-pro-atrial natriuretic peptide (MR-proANP), and mid-regional-pro-adrenomedullin (MR-proADM) at the time of device implantation to predict favourable clinical course (CRT response and/or risk of MACE) in HF patients receiving CRT...
January 16, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28095614/over-the-scope-clip-closure-for-treatment-of-post-pancreaticogastrostomy-occurring-pancreatic-fistula-a-case-series
#20
Santi Mangiafico, Angelo Caruso, Raffaele Manta, Giuseppe Grande, Helga Bertani, Vincenzo Mirante, Flavia Pigò, Luigi Magnano, Mauro Manno, Rita Conigliaro
BACKGROUND AND AIM: The over-the-scope clip (OTSC) system is a recently developed endoscopic device. In the last few years it has been successfully used for severe bleeding or deep wall lesions, or perforations of the GI tract. We hereby report a series of patients with post pancreaticogastrostomy occuring pancreatic fistula in whom OTSCs were used as endoscopic treatment. METHODS: We prospectively collected data from January 2012 to July 2015 about cases of postoperative pancreatic fistula...
January 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
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