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https://www.readbyqxmd.com/read/29040106/noninvasive-blood-pressure-determination-in-left-ventricular-assist-device-patients
#1
David W Barbara, Troy G Seelhammer, William J Mauermann
No abstract text is available yet for this article.
November 2017: Anesthesiology
https://www.readbyqxmd.com/read/29040105/when-managing-patients-with-left-ventricular-assist-devices-undergoing-noncardiac-surgery-less-is-not-more
#2
Robert E Freundlich, Adam J Kingeter
No abstract text is available yet for this article.
November 2017: Anesthesiology
https://www.readbyqxmd.com/read/29036801/misinterpretation-of-the-sublingual-microcirculation-during-therapy-with-levosimendan
#3
Michael Hessler, Philip-Helge Arnemann, Sebastian Rehberg, Christian Ertmer
There is increasing evidence in the literature that preoperative treatment with levosimendan optimizes cardiopulmonary haemodynamics in patients scheduled for the implantation of a Left Ventricular Assist Device (LVAD). The present case report describes changes in sublingual microcirculation using incident dark field video microscopy in a patient, who received a continuous infusion of 0.5 mg/h levosimendan 12 h before LVAD implantation. Despite no evident macrohaemodynamic or metabolic changes, there was a dramatic reduction in total vessel density and perfused vessel density suggesting a deterioration of microcirculation according to the consensus conference criteria in vessels smaller than 20 μm in diameter...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29036554/contrast-venography-vs-microwire-assisted-axillary-venipuncture-for-cardiovascular-implantable-electronic-device-implantation
#4
Jahangir Rashid Beig, Bilal A Ganai, Mohammad S Alai, Ajaz A Lone, Imran Hafeez, Mohd Iqbal Dar, Nisar A Tramboo, Hilal A Rather
Aims: This study was conducted to compare the safety and efficacy of microwire assisted technique with contrast venography guided axillary venipuncture in patients undergoing cardiovascular implantable electronic device (CIED) implantation. Methods and results: This prospective randomized study included 212 consecutive adult patients undergoing CIED implantation at our institute between 2013 and 2015. Patients were randomized to either venography guided technique (Group I; n = 105) or microwire assisted technique (Group II; n = 107) for axillary venipuncture...
September 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29035899/driveline-site-is-not-a-predictor-of-infection-following-ventricular-assist-device-implantation
#5
Billie-Jean Martin, Jessica G Y Luc, Michiko Maruyama, Roderick MacArthur, Angela R Bates, Holger Buchholz, Darren H Freed, Jennifer Conway
Driveline infections (DLI) remain a major source of morbidity for patients requiring long-term ventricular assist device (VAD) support. We aimed to assess whether VAD driveline exit site (DLES) (abdomen versus chest wall) is associated with DLI. All adult patients who underwent insertion of a Heartware HVAD® or Heartmate II (HMII) between 2009 and 2016 were included. DLI was defined as clinical evidence of DLI accompanied by a positive bacterial swab and need for antibiotics. Competing risks analysis was used to assess the association between patient characteristics and DLI...
October 13, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29035638/evaluation-of-the-effectiveness-of-a-novel-gait-trainer-in-increasing-the-functionality-of-individuals-with-motor-impairment-a-case-series
#6
Eitan Raveh, Isabella Schwartz, Naama Karniel, Sigal Portnoy
Regaining the ability to independently ambulate following a physical disability can increase functional ability and participation of patients in daily life. Gait trainers are assistive devices that enable body support and provide safety during gait. However, most conventional gait trainers are pre-configured to a constant position, therefore not suitable for practicing sit-to-stand function, and require assistance from a caregiver in order to mount the device from a sitting position. We therefore evaluated the effectiveness of a dynamically-adjusting gait trainer, designed to provide independence and safety during gait and various activities, in both lab setting and at home in 4 subjects (1 female, 3 males, ages 32-79 years) with limited ambulation...
October 16, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/29035218/interacting-with-robots-to-investigate-the-bases-of-social-interaction
#7
Alessandra Sciutti, Giulio Sandini
Humans show a great natural ability at interacting with each other. Such efficiency in joint actions depends on a synergy between planned collaboration and emergent coordination, a subconscious mechanism based on a tight link between action execution and perception. This link supports phenomena as mutual adaptation, synchronization and anticipation, which cut drastically the delays in the interaction and the need of complex verbal instructions and result in the establishment of joint intentions, the backbone of social interaction...
October 16, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/29034050/separation-of-sperm-cells-from-samples-containing-high-concentrations-of-white-blood-cells-using-a-spiral-channel
#8
Jiyoung Son, Raheel Samuel, Bruce K Gale, Douglas T Carrell, James M Hotaling
Microfluidic technology has potential to separate sperm cells from unwanted debris while improving the effectiveness of assisted reproductive technologies (ART). Current clinical protocol limitations regarding the separation of sperm cells from other cells/cellular debris can lead to low sperm recovery when the sample contains a low concentration of mostly low motility sperm cells and a high concentration of unwanted cells/cellular debris, such as in semen samples from patients with pyospermia [high white blood cell (WBC) semen]...
September 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/29032614/quantification-of-the-effect-of-instrumentation-error-in-objective-gait-assessment-in-the-horse-on-hindlimb-symmetry-parameters
#9
F M Serra Bragança, M Rhodin, T Wiestner, E Hernlund, T Pfau, P R van Weeren, M A Weishaupt
BACKGROUND: Objective gait-analysis is becoming more popular as a tool assisting veterinarians during the clinical lameness exam. At present, there is only limited information on the effect of misplacement of markers/motion-sensors. OBJECTIVES: To investigate and describe the effect of marker misplacement on commonly calculated pelvic symmetry parameters. STUDY DESIGN: Experimental study. METHODS: Each horse was equipped with custom-made devices consisting of several reflective markers arranged in a predefined manner with a reference marker correctly positioned regarding the anatomical landmark and several misplaced markers along the sagittal and transverse planes...
October 15, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29032583/third-generation-ventricular-assist-device-mid-term-outcomes-of-the-heartware-hvad-in-pediatric-patients
#10
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/29031522/video-based-surgical-learning-improving-trainee-education-and-preparation-for-surgery
#11
Paulo Mota, Nuno Carvalho, Emanuel Carvalho-Dias, Manuel João Costa, Jorge Correia-Pinto, Estevão Lima
BACKGROUND: Since the end of the XIX century, teaching of surgery has remained practically unaltered until now. With the dawn of video-assisted laparoscopy, surgery has faced new technical and learning challenges. Due to technological advances, from Internet access to portable electronic devices, the use of online resources is part of the educational armamentarium. In this respect, videos have already proven to be effective and useful, however the best way to benefit from these tools is still not clearly defined...
October 11, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29030495/intracavitary-ultrasound-icarus-a-neuroendoscopic-adaptation-of-intravascular-ultrasound-for-intracerebral-hemorrhage-evacuation
#12
Alexander G Chartrain, Danny Hom, Joshua B Bederson, J Mocco, Christopher Paul Kellner
Neurosurgeons performing intracerebral hemorrhage evacuation procedures have limited options for monitoring hematoma evacuation and assessing residual hematoma burden intraoperatively. Here, we report the successful neuroendoscopic adaptation of intravascular ultrasound, referred to here as intracavitary ultrasound (ICARUS), in two patients. Pre-evacuation ICARUS demonstrated dense hematomas in both patients. Post-evacuation ICARUS in patient 1 demonstrated significant reduction in clot burden and two focal hyperechoic regions consistent with pockets of hematoma not previously seen with the endoscope or burr hole ultrasound...
October 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29030462/selective-ophthalmic-artery-chemosurgery-soac-for-retinoblastoma-fluoroscopic-time-and-radiation-dose-parameters-a-baseline-study
#13
Srikanth R Boddu, David H Abramson, Brian P Marr, Jasmine H Francis, Y Pierre Gobin
OBJECTIVE: To evaluate fluoroscopic time and radiation dose parameters, and factors affecting these parameters, during selective ophthalmic artery chemosurgery (SOAC) for retinoblastoma. MATERIALS AND METHODS: Retrospective review from the prospective database of all patients with retinoblastoma treated with SOAC over a 5-year period (September 2009-January 2015) at a single institution after receiving institutional review board approval. Patient demographics, arterial approach, access device, side of treatment, number of SOAC cycles/patient, number of drugs/SOAC, and radiation parameters (outcome variables), including the fluoroscopic time, dose-area product (DAP), and total radiation dose, were obtained from the database...
November 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29030276/dental-occlusal-surface-supported-titanium-guide-to-assist-cutting-and-drilling-in-mandibular-bilateral-sagittal-split-osteotomy
#14
Charles Savoldelli, Clair Vandersteen, Olivier Dassonville, Joseph Santini
INTRODUCTION: Cutting and drilling guides manufactured using computer-aided design/computer-aided manufacturing (CAD/CAM) technologies have attracted increasing interest in orthognathic surgery, particularly in complex cases. The development of these guides requires virtual surgery planning and three-dimensional modelling before they can be printed in titanium, polyamide, or resin. We report the use of a personalized titanium device to assist bilateral sagittal split osteotomy (BSSO) with or without genioplasty combined with individual implants for repositioning and fixation...
October 10, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29029567/more-than-20-years-experience-of-left-ventricular-assist-device-implantation-at-a-non-transplant-centre
#15
Erica Holmberg, Henrik Ahn, Bengt Peterzén
OBJECTIVES: Over recent decades implantable left ventricular assist devices (LVAD) have increased the possibility of improved survival in patients with advanced heart failure who also benefit from a better quality of life. The aim of this retrospective survey was to review the clinical results of LVAD implantation at a low-volume non-transplant centre (Linköping, Sweden) between 1993 and 2016. Our aim was also to assess the mortality and morbidity rates associated with implantation of three LVAD versions at our centre, and to compare our results with those from transplant centres...
October 13, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/29029228/development-of-a-whole-task-simulator-for-carotid-endarterectomy
#16
Gabrielle Santangelo, Doran Mix, Ahmed Ghazi, Michael Stoner, G Edward Vates, Jonathan J Stone
BACKGROUND: Surgical education relies on operative exposure with live patients. Carotid endarterectomy (CEA) demands an experienced surgeon with a very low complication rate. The high-risk nature of this procedure and the decline in number of CEAs performed annually has created a gap in residency training. OBJECTIVE: To develop a high-fidelity whole-task simulation for CEA that demonstrates content, construct, and face validity. METHODS: Anatomically accurate models of the human neck were created using multilayered poly-vinyl alcohol hydrogels...
September 27, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29029180/cerebral-strokes-in-children-on-intracorporeal-ventricular-assist-devices-analysis-of-the-euromacs-registry
#17
Martin Schweiger, Oliver Miera, Theo M M H de By, Michael Hübler, Felix Berger, Mustafa Özbaran, Antonio Loforte, Burkhardt Seifert, Gaetano Gargiulo, Jan Gummert, Paul Mohacsi
OBJECTIVES: Little is known about cerebral strokes in paediatric patients supported by intracorporeal continuous-flow ventricular assist devices. METHODS: We retrospectively investigated patients younger than 19 years of age who were treated with an intracorporeal continuous-flow ventricular assist device in the European Registry for Patients with Mechanical Circulatory Support (EUROMACS) database. The patients were stratified by body surface area in Group 1 [<1...
September 25, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29029117/the-european-registry-for-patients-with-mechanical-circulatory-support-euromacs-of-the-european-association-for-cardio-thoracic-surgery-eacts-second-report
#18
Theo M M H de By, Paul Mohacsi, Brigitta Gahl, Armin Zittermann, Thomas Krabatsch, Finn Gustafsson, Pascal Leprince, Bart Meyns, Ivan Netuka, Kadir Caliskan, Evaristo Castedo, Francesco Musumeci, André Vincentelli, Roland Hetzer, Jan Gummert
OBJECTIVES: The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) was founded in Berlin, Germany. EUROMACS is supported fully by the European Association for Cardio-Thoracic Surgery (EACTS) and, since 2014, has functioned as a committee of the EACTS. The purpose of having the EUROMACS as a part of the EACTS is to accumulate clinical data related to long-term mechanical circulatory support for scientific purposes and to publish annual reports. METHODS: Participating hospitals contributed surgical and cardiological pre-, peri- and long-term postoperative data of mechanical circulatory support implants to the registry...
September 29, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29028917/comparative-usability-of-modern-anaesthesia-ventilators-a-human-factors-study
#19
J Spaeth, T Schweizer, A Schmutz, H Buerkle, S Schumann
Background: The anaesthesia ventilator represents the key equipment for intraoperative respiratory care. Improper operation of this device may threaten a patient's health. A self-explanatory interface facilitates handling and decreases the risk of operating errors. This study systematically evaluates the usability of user interfaces in four modern anaesthesia ventilators. Methods: Twenty naïve operators were asked to execute 20 tasks on each of four different anaesthesia ventilators (Avance CS2™, GE Healthcare; Flow-i™, Maquet; and Perseus™ and Primus™, Dräger) in a randomized order...
October 3, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29028693/the-development-of-pulmonary-hypertension-results-in-decreased-post-transplant-survival
#20
Erin M Schumer, Michele Gallo, Michael P Rogers, Jaimin R Trivedi, Matthew C Black, H Todd Massey, Mark S Slaughter
The effects of pulmonary hypertension (PAH) on survival after heart transplantation are debated, especially for patients with left ventricular assist devices (LVAD). The United Network of Organ Sharing database was retrospectively queried from January 2005 to June 2015 to identify adult patients who underwent heart transplantation. Four groups were defined: patients without PAH, persistent PAH, resolved PAH, and developed PAH between listing and transplant. A total of 15,914 patients underwent heart transplant of which 4,662 (29%) were implanted with an LVAD...
October 10, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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