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Bin Yu, Miao He, Guang-Yu Cai, Tian-Xiao Zou, Na Zhang
BACKGROUND: Continuous femoral nerve block and fascia iliaca compartment block are 2 traditional anesthesia methods in orthopedic surgeries, but it is controversial which method is better. The objective of this study was to compare the practicality, efficacy, and complications of the 2 modalities in hip replacement surgery in the elderly and to assess the utility of a novel cannula-over-needle set. METHODS: In this prospective, randomized controlled clinical investigation, 60 elderly patients undergoing hip replacement were randomly assigned to receive either continuous femoral nerve block or continuous fascia iliaca compartment block...
October 2016: Medicine (Baltimore)
Nnamdi Norbert Jibiri, Tawakalitu Oluwatoyin Akintunde, Musa Yusuf Dambele, Christopher Jimoh Olowookere
OBJECTIVE: The practice of regular dose measurement helps to ascertain the level of occupational dose delivered to the staff involved in diagnostic procedures. This study was carried out to evaluate the dose exposed to the hands of radiologists and a radiologic technologist carrying out HSG and radionuclide bone scan examinations in several hospitals in Nigeria. METHODS: Radiation doses exposed to the hands of radiologists and a technician carrying out hysterosalpingography (HSG) and bone scan procedures were measured using calibrated thermo-luminescent dosimeters...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
Golnaz Javey, Mohammed Rigi, Andrew J Barkmeier, Jordan L Heffez, Petros E Carvounis
PURPOSE: To determine the effect of cannula removal over the light pipe on the incidence of sclerotomy leakage and to evaluate other factors that may influence the incidence of sclerotomy leaks and hypotony on conclusion of small-gauge transconjunctival pars plana vitrectomy. METHODS: Retrospective, interventional clinical study of consecutive patients who underwent small-gauge transconjunctival pars plana vitrectomy at a single academic center. Eyes were divided into a group in which cannulae were removed over the light pipe (Group L) and a group in which cannulae were simply pulled out (Group N)...
October 4, 2016: Retina
Enrica Sarnicola, Caterina Sarnicola, Francesco Sabatino, Gian M Tosi, Paolo Perri, Vincenzo Sarnicola
PURPOSE: To evaluate outcomes and possible advantages of 2 different techniques of deep anterior lamellar keratoplasty (DALK) in patients with keratoconus: cannula big-bubble DALK and needle big-bubble DALK (Anwar technique). METHODS: This is a retrospective, nonconsecutive, comparative study of 507 eyes affected by keratoconus that underwent DALK between 2002 and 2012. Needle DALK and cannula DALK techniques were performed in 266 eyes and 241 eyes, respectively...
October 5, 2016: Cornea
Nikhil Kumar, Christopher A Troianos, Joshua S Baisden
In this report, we present the case of a patient with biventricular noncompaction cardiomyopathy, Ebstein anomaly, and a left atrial mass who required emergent placement of a left ventricular assist device. The noncompaction cardiomyopathy complicated the left ventricular assist device implantation procedure because the thickened, trabeculated myocardium made it difficult to place the inflow cannula. We discuss our perioperative management strategy, in which transesophageal echocardiography was used, to help the surgical team identify the proper cannula placement and provide a bridge to transplantation...
October 5, 2016: A & A Case Reports
Lu Chen, Hong-Liang Li, Laurent Brochard
No abstract text is available yet for this article.
September 2016: Journal of Thoracic Disease
Manas Panigrahi, Manoranjitha Kumari, Sudhindra Vooturi
BACKGROUND: Keeping the operating field clean and visible is an important technique in neurosurgery. Continuous irrigation-suction (IS) of the surgical field is currently often done using devices available that are expensive and demand technical proficiency. We report a simple method of continuous ISusing widely available central venous catheter and controlled suction cannula. METHODS: We used a controlled suction cannula attached to a central suction system. Single lumen central venous catheter is passed through the key hole of a controlled suction cannula, which is connected to a continuous irrigation system...
October 12, 2016: World Neurosurgery
Matthew S Mosca, George Justison, T Brett Reece
OBJECTIVE: The optimal strategy to deliver antegrade cerebral perfusion for cerebral protection during hypothermic circulatory arrest has not been established. The purpose of this review was to present our current clinical protocol utilizing selective antegrade cerebral perfusion during aortic arch surgery and to compare it to other published experience. CLINICAL PROTOCOL: Since 2013, our clinical protocol for aortic arch surgery has evolved to using selective antegrade cerebral perfusion via the innominate artery, moderate hypothermia, and ancillary strategies such as goal-directed perfusion (GDP)...
October 14, 2016: Seminars in Cardiothoracic and Vascular Anesthesia
Atsushi Kawaguchi, Yutaka Yasui, Allan deCaen, Daniel Garros
OBJECTIVES: To assess the impact on a single PICU of introducing high-flow nasal cannula as a management tool for respiratory distress. DESIGN: Retrospective cohort study, including an interrupted time series analysis with a propensity score adjustment and a matched-pair analysis. SETTING: A single university-affiliated children's hospital PICU. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Differences in clinical outcomes when comparing the pre-high-flow nasal cannula era (2004-2008) and the high-flow nasal cannula era (2010-2014), excluding 2009 as a washout period, and clinical impacts of high-flow nasal cannula as an exposure of interest...
October 12, 2016: Pediatric Critical Care Medicine
Shannon B Spencer, Shigang Wang, Karl Woitas, Kristen Glass, Allen R Kunselman, Akif Ündar
The objective of this study was to evaluate an alternative neonatal extracorporeal life support (ECLS) circuit with a RotaFlow centrifugal pump and Better-Bladder (BB) for hemodynamic performance and gaseous microemboli (GME) capture in a simulated neonatal ECLS system. The circuit consisted of a Maquet RotaFlow centrifugal pump, a Quadrox-iD Pediatric diffusion membrane oxygenator, 8 Fr arterial cannula, and 10 Fr venous cannula. A "Y" connector was inserted into the venous line to allow for comparison between BB and no BB...
October 13, 2016: Artificial Organs
Molly Kraus, Michelle LeRiger
No abstract text is available yet for this article.
October 12, 2016: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
Tracie A Paine, Nathan Swedlow, Lucien Swetschinski
INTRODUCTION: Decreased sociability is a symptom of psychiatric conditions including autism-spectrum disorder and schizophrenia. Both of these conditions are associated with decreases in GABA function, particularly in the medial prefrontal cortex (PFC) and the basolateral amygdala (BLA); structures that are components of the social brain. Here, we determined if decreasing GABA transmission within either the PFC or the BLA decreases social behavior. METHODS: Rats were implanted with cannulae aimed at either the medial PFC or the BLA and then were tested on up to 4 behavioral tests following bilateral infusions of 0...
October 9, 2016: Behavioural Brain Research
Kristin A Coleman, Sean Adams, Daniel D Smeak, Eric Monnet
OBJECTIVE: To describe a technique for laparoscopic incisional gastropexy using an articulated endoscopic suturing device with knotless unidirectional barbed suture in healthy large breed dogs. STUDY DESIGN: Prospective case series. ANIMALS: Healthy client-owned dogs presented for prophylactic gastropexy and weighing >20 kg (n=7). METHODS: Incisional gastropexy was performed using a single port access system with an articulated endoscopic suturing device...
October 12, 2016: Veterinary Surgery: VS
Samir Jaber, Marion Monnin, Mehdi Girard, Matthieu Conseil, Moussa Cisse, Julie Carr, Martin Mahul, Jean Marc Delay, Fouad Belafia, Gérald Chanques, Nicolas Molinari, Audrey De Jong
PURPOSE: High-flow nasal cannula oxygen (HFNC) has the potential to provide apnoeic oxygenation. We decided to assess in a proof-of-concept study whether the addition of HFNC to non-invasive ventilation (NIV) could reduce oxygen desaturation during intubation, compared with NIV alone for preoxygenation, in severely hypoxaemic intensive care unit (ICU) patients with respiratory failure. METHODS: We conducted a randomised, controlled, single-centre trial with assessor-blinded outcome assessment in patients admitted to the ICU...
October 11, 2016: Intensive Care Medicine
Jeffrey D Coe, James F Zucherman, Donald W Kucharzyk, Kornelis A Poelstra, Larry E Miller, Sandeep Kunwar
The increasing adoption of minimally invasive techniques for spine surgery in recent years has led to significant advancements in instrumentation for lumbar interbody fusion. Percutaneous pedicle screw fixation is now a mature technology, but the role of expandable cages is still evolving. The capability to deliver a multiexpandable interbody cage with a large footprint through a narrow surgical cannula represents a significant advancement in spinal surgery technology. The purpose of this report is to describe a multiexpandable lumbar interbody fusion cage, including implant characteristics, intended use, surgical technique, preclinical testing, and early clinical experience...
2016: Medical Devices: Evidence and Research
Matthew Schuldes, Jeffrey B Riley, Stephen G Francis, Sean Clingan
Gaseous microemboli (GME) are an abnormal physiological occurrence during cardiopulmonary bypass and extracorporeal membrane oxygenation (ECMO). Several studies have correlated negative sequelae with exposure to increased amounts of GME. Hypobaric oxygenation is effective at eliminating GME in hollow-fiber microporous membrane oxygenators. However, hollow-fiber diffusion membrane oxygenators, which are commonly used for ECMO, have yet to be validated. The purpose of this study was to determine if hypobaric oxygenation, compared against normobaric oxygenation, can reduce introduced GME when used on diffusion membrane oxygenators...
September 2016: Journal of Extra-corporeal Technology
Sophia Sakellariou, Wenguang Li, Manosh C Paul, Giles Roditi
Iodinated contrast media (CM) are the most commonly used injectables in radiology today. A range of different media are commercially available, combining various physical and chemical characteristics (ionic state, osmolality, viscosity) and thus exhibiting distinct in vivo behaviour and safety profiles. In this paper, numerical simulations of blood flow with contrast media were conducted to investigate the effects of contrast viscosity on generated vessel wall shear stress and vessel wall pressure to elucidate any possible relation to extravasations...
October 8, 2016: Medical Engineering & Physics
Ivan Zderic, Philipp Steinmetz, Markus Windolf, R Geoff Richards, Andreas Boger, Boyko Gueorguiev
Cement leakage is a serious adverse event potentially occurring during vertebroplasty. Pre-operative in-silico planning of the cement filling process can help reducing complication rates related to leakage. This requires a better understanding of the cement flow along the whole injection path. Therefore, the aim of the present study was to analyze bone cement flow behavior by stepwise injections through medical cannulas. Sixteen cannulas were assigned to four groups for stepwise injection of differently colored cement portions of 1ml volume...
October 7, 2016: Medical Engineering & Physics
Elisa Damiani, Alex Dyson, Lucia Zacchetti, Abele Donati, Mervyn Singer
BACKGROUND: Hypoxemia may compromise cell metabolism and organ function. Supplemental oxygen (O2) at high concentrations may prove ineffective, and issues relating to hyperoxia, barotrauma, mechanical ventilation, and extracorporeal oxygenation are well documented. Old reports suggest the potential safety and efficacy of alternative routes for O2 administration, such as intravenous or intestinal. We re-explored these routes in rat models of hypoxemia. METHODS: Hypoxemia was induced in spontaneously breathing, anesthetized rats by breathing a hypoxic gas mix (FiO2 0...
December 2016: Intensive Care Medicine Experimental
Nick J van de Berg, Jenny Dankelman, John J van den Dobbelsteen
PURPOSE: To study the ability of a human operator to manually correct for errors in the needle insertion path without partial withdrawal of the needle by means of an active, tip-articulated steerable needle. MATERIALS AND METHODS: The needle is composed of a 1.32-mm outer-diameter cannula, with a flexure joint near the tip, and a retractable stylet. The bending stiffness of the needle resembles that of a 20-gauge hypodermic needle. The needle functionality was evaluated in manual insertions by steering to predefined targets and a lateral displacement of 20 mm from the straight insertion line...
October 6, 2016: Journal of Vascular and Interventional Radiology: JVIR
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