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https://www.readbyqxmd.com/read/28495069/the-importance-of-arch-geometry-after-norwood-reconstruction
#1
EDITORIAL
Harold M Burkhart, Jess L Thompson, Arshid Mir
No abstract text is available yet for this article.
April 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28491863/reproducing-patient-specific-hemodynamics-in-the-blalock-taussig-circulation-using-a-flexible-multi-domain-simulation-framework-applications-for-optimal-shunt-design
#2
Christopher J Arthurs, Pradyumn Agarwal, Anna V John, Adam L Dorfman, Ronald G Grifka, C Alberto Figueroa
For babies born with hypoplastic left heart syndrome, several open-heart surgeries are required. During Stage I, a Norwood procedure is performed to construct an appropriate circulation to both the systemic and the pulmonary arteries. The pulmonary arteries receive flow from the systemic circulation, often using a Blalock-Taussig (BT) shunt between the innominate artery and the right pulmonary artery. This procedure causes significantly disturbed flow in the pulmonary arteries. In this study, we use computational hemodynamic simulations to demonstrate its capacity for examining the properties of the flow through and near the BT shunt...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28489637/pilot-study-comparing-closed-versus-open-tracheal-suctioning-in-postoperative-neonates-and-infants-with-complex-congenital-heart-disease
#3
Lyvonne N Tume, Paul B Baines, Rafael Guerrero, Margaret A Hurley, Robert Johnson, Atul Kalantre, Ram Ramaraj, Paul C Ritson, Laura Walsh, Philip D Arnold
OBJECTIVES: To determine the hemodynamic effect of tracheal suction method in the first 36 hours after high-risk infant heart surgery on the PICU and to compare open and closed suctioning techniques. DESIGN: Pilot randomized crossover study. SETTING: Single PICU in United Kingdom. PARTICIPANTS: Infants undergoing surgical palliation with Norwood Sano, modified Blalock-Taussig shunt, or pulmonary artery banding in the first 36 hours postoperatively...
May 9, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28487411/a-microrna-129-5p-rbfox-crosstalk-coordinates-homeostatic-downscaling-of-excitatory-synapses
#4
Marek Rajman, Franziska Metge, Roberto Fiore, Sharof Khudayberdiev, Ayla Aksoy-Aksel, Silvia Bicker, Cristina Ruedell Reschke, Rana Raoof, Gary P Brennan, Norman Delanty, Michael A Farrell, Donncha F O'Brien, Sebastian Bauer, Braxton Norwood, Morten T Veno, Marcus Krüger, Thomas Braun, Jørgen Kjems, Felix Rosenow, David C Henshall, Christoph Dieterich, Gerhard Schratt
Synaptic downscaling is a homeostatic mechanism that allows neurons to reduce firing rates during chronically elevated network activity. Although synaptic downscaling is important in neural circuit development and epilepsy, the underlying mechanisms are poorly described. We performed small RNA profiling in picrotoxin (PTX)-treated hippocampal neurons, a model of synaptic downscaling. Thereby, we identified eight microRNAs (miRNAs) that were increased in response to PTX, including miR-129-5p, whose inhibition blocked synaptic downscaling in vitro and reduced epileptic seizure severity in vivo Using transcriptome, proteome, and bioinformatic analysis, we identified the calcium pump Atp2b4 and doublecortin (Dcx) as miR-129-5p targets...
May 9, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28472306/neuro-developmental-outcome-in-single-ventricle-patients-is-the-norwood-procedure-a-risk-factor
#5
Ina Rotermann, Jana Logoteta, Janine Falta, Philip Wegner, Olaf Jung, Peter Dütschke, Jens Scheewe, Hans-Heiner Kramer, Jan Hinnerk Hansen
OBJECTIVES: Complex neonatal surgery is considered a risk factor for neuro-developmental impairment in single-ventricle patients. Neuro-developmental outcome was compared between preschool-aged Fontan patients who underwent a Norwood procedure and single-ventricle patients not requiring neonatal surgery with cardiopulmonary bypass. METHODS: Verbal, performance and full-scale intelligence quotient (IQ) were evaluated with the Wechsler Preschool and Primary Scale of Intelligence...
May 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28466610/neonatal-cardiac-surgery-in-the-new-era-lessons-learned-from-1000-consecutive-cases
#6
Gabriel Amir, Georgy Frenkel, Elchanan Bruckheimer, Alexander Lowenthal, Amichay Rotstein, Jacob Katz, Yelena Zeitlin, Ofer Schiller, Einat Birk
BACKGROUND: neonatal cardiac surgery has evolved over the last 50 years with a large percentage of the patients achieving complete physiological repair in the neonatal period. The remaining patients achieve staged palliation with an increasing amount of success. OBJECTIVES: To report our experience with 1000 neonatal cardiac surgical procedures performed in the last 10 years. METHODS: We conducted a retrospective analysis of surgical outcome in all neonatal patients who underwent cardiac surgery between January 2007 and July 2016 at Schneider Children's Medical Center of Israel...
November 2016: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28465525/general-description-and-understanding-of-the-nonlinear-dynamics-of-mode-locked-fiber-lasers
#7
Huai Wei, Bin Li, Wei Shi, Xiushan Zhu, Robert A Norwood, Nasser Peyghambarian, Shuisheng Jian
As a type of nonlinear system with complexity, mode-locked fiber lasers are known for their complex behaviour. It is a challenging task to understand the fundamental physics behind such complex behaviour, and a unified description for the nonlinear behaviour and the systematic and quantitative analysis of the underlying mechanisms of these lasers have not been developed. Here, we present a complexity science-based theoretical framework for understanding the behaviour of mode-locked fiber lasers by going beyond reductionism...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28453807/attrition-in-patients-with-single-ventricle-and-trisomy-21-outcomes-after-a-total-cavopulmonary-connection
#8
Anastasios C Polimenakos, Sujata Subramanian, Chawki ElZein, Michel N Ilbawi
OBJECTIVES: Data are limited regarding the management of children with trisomy 21 (T21) syndrome and a functional single ventricle (FSV). We evaluated patients with T21 and a FSV who had a total cavopulmonary connection (TCPC). METHODS: From September 1999 to August 2012, 139 patients with a FSV underwent a TCPC. Sixty-five had unbalanced atrioventricular septal defect. Thirteen had T21. Three (of 13) had heterotaxy syndrome. The mean age at the Fontan operation was 27...
May 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28444210/initial-shunt-type-at-the-norwood-operation-impacts-myocardial-function-in-hypoplastic-left-heart-syndrome%C3%A2
#9
Hanna K Ruotsalainen, Jaana Pihkala, Jukka Salminen, Lisa K Hornberger, Heikki Sairanen, Tiina Ojala
OBJECTIVES: We investigated the impact of initial shunt type, a Blalock-Taussig (BT) shunt versus a right ventricle to pulmonary artery conduit (RV-PA) on myocardial function at different stages of surgical palliation in patients with hypoplastic left heart syndrome (HLHS). METHODS: A population-based cohort of 63 Finnish children with HLHS (BT n  = 23, RV-PA n  = 40) born between 2003 and 2010 were studied retrospectively by echocardiography prior to Stages 1, 2 and 3 palliation and 0...
April 24, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28442823/insulin-degludec-200-units-ml-is-associated-with-lower-injection-frequency-and-improved-patient-reported-outcomes-compared-with-insulin-glargine-100-units-ml-in-patients-with-type-2-diabetes-requiring-high-dose-insulin
#10
Mark L Warren, Louis B Chaykin, Serge Jabbour, Mae Sheikh-Ali, Charlotte T Hansen, Thor S S Nielsen, Paul Norwood
IN BRIEF Many patients with type 2 diabetes require high basal insulin doses, necessitating multiple injections, increasing patient burden, and resulting in reduced treatment adherence. This randomized, controlled, crossover trial compared the efficacy, safety, and patient-reported outcomes for a concentrated formulation of insulin degludec (200 units/mL) to those of insulin glargine in patients requiring high doses of basal insulin. By offering equivalent glycemic control while reducing the rate of confirmed hypoglycemia and the number of injections required for administration, insulin degludec 200 units/mL may be preferred by patients with type 2 diabetes who require high basal insulin doses...
April 2017: Clinical Diabetes: a Publication of the American Diabetes Association
https://www.readbyqxmd.com/read/28431725/intraoperative-three-dimensional-mapping%C3%A2-of-supraventricular-tachycardia-in-a-young-fontan%C3%A2-patient
#11
James C Perry, Matthew R Williams, Suzanne Shepard, Andras Bratincsak, Cynthia Murphy, Raghav Murthy, Mohammad Ebrahim, John J Lamberti
Preoperative tachycardia is uncommon before an initial Fontan procedure. Catheter intervention can risk complications in small patients. A patient with fetal tachycardia and double inlet left ventricle underwent Norwood and bidirectional Glenn procedures. She had persistent tachycardia. A three-dimensional electroanatomic mapping system was modified for the operative procedure; it was used to identify the arrhythmia substrate and cryoablate an atrioventricular nodal tachycardia. Mapping added 20 minutes to the operation...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28421915/use-of-a-modified-classic-bt-shunt-in-a-patient-with-multiple-conduit-obstructions-with-positive-lupus-anticoagulant
#12
Pallav Bhattarai, Ayesha Zia, Joseph M Forbess, Kristine J Guleserian, Susan R Hupp, Timothy Pirolli
The use of a right ventricle-to-pulmonary artery conduit has re-emerged as a popular alternative to a systemic artery-to-pulmonary artery shunt in the Norwood procedure. Both proximal obstruction secondary to dynamic compression and distal obstruction at the anastomosis site with the pulmonary arteries are well described. In an effort to prevent complications, a technique where in the conduit is placed through the entire full thickness, or dunked, through the RV free wall has been described. We report a case of a patient with HLHS and positive lupus anticoagulant who developed recurrent conduit obstructions...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28419185/a-new-automated-technology-for-cerebrospinal-fluid-cell-counts-comparison-of-accuracy-and-clinical-impact-of-glocyte-sysmex-xn-and-manual-methods
#13
Linda M Sandhaus, Christine A Dillman, Warren P Hinkle, Julie M MacKenzie, George Hong
Objectives: The purpose of the study was to compare the performance of GloCyte (Advanced Instruments, Norwood, MA), a new semiautomated instrument for cerebrospinal fluid cell counting, with the manual hemocytometer method and the automated Sysmex XN (Sysmex, Kobe, Japan) body fluid mode. The clinical impact of replacing the manual method with either automated method was determined. Methods: Fifty-seven samples from 38 patients were analyzed by all three methods...
April 13, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28417535/rates-of-hypoglycaemia-are-lower-in-patients-treated-with-insulin-degludec-liraglutide-ideglira-than-with-ideg-or-insulin-glargine-regardless-of-the-hypoglycaemia-definition-used
#14
P Norwood, R Chen, E Jaeckel, I Lingvay, H Jarlov, L Lehmann, S Heller
AIMS: The rates of hypoglycaemia reported in clinical trials are affected by the definitions of hypoglycaemia used. This post-hoc analysis took data from two trials comparing the once-daily, fixed ratio combination of insulin degludec/liraglutide (IDegLira) with basal insulin regimens, and re-analysed these data using alternative hypoglycaemia definitions and stratified outcomes by dosing time and baseline characteristics. MATERIALS AND METHODS: Post hoc analyses of the DUAL I (patients uncontrolled on oral antidiabetic drugs) and DUAL V (patients uncontrolled on insulin glargine (IGlar) U100) trials were carried out using different definitions of hypoglycaemia and by whether treatments were administered in the AM or PM...
April 17, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28402400/unplanned-cardiac-reoperations-and-interventions-during-long-term-follow-up-after-the-norwood-procedure%C3%A2
#15
Eva Sames-Dolzer, Gregor Gierlinger, Michaela Kreuzer, Julia Schrempf, Roland Gitter, Christoph Prandstetter, Gerald Tulzer, Rudolf Mair
OBJECTIVES: Patients with hypoplastic left heart syndrome or related malformations are predominantly treated with a 3-stage palliation. Anatomic or physiologic problems can lead to unplanned additional surgical or catheter interventions during single ventricle palliation. Changes in operative technique may have an impact on the reoperation rate. METHODS: Between 1997 and 2014, 317 Norwood procedures were performed at our centre. A retrospective single centre investigation was carried out concerning incidence, timing, indication and type of unplanned interstage cardiac reoperations and catheter interventions during follow-up of Norwood patients...
June 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28398561/open-square-technique-using-a-novel-pre-cuffed-spiral-ringed-conduit-for-the-norwood-procedure
#16
Tsukasa Ozawa, Yuzo Katayama, Noritsugu Shiono, Yoshinori Watanabe
To avoid stenotic conduit events, 2 modifications were added to Norwood reconstruction with a right ventricle-to-pulmonary artery conduit: open-square insertion of a proximal conduit end and use of a pre-cuffed, spiral-ringed conduit. Three consecutive patients treated with this technique successfully underwent bidirectional Glenn with no stenotic events. These modifications are beneficial and safe.
April 6, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28350313/improving-the-reach-of-the-national-diabetes-prevention-program-within-a-health-disparities-population-a-bronx-new-york-pilot-project-crossing-health-and-community-based-sectors
#17
Robert Morrow, Lisa Ferretti, Chris Norwood, Douglas Reich, Erica Chito-Childs, Phillip McCallion, Jose Tiburcio, Eleanor McGee, Jose A Lopez
INTRODUCTION: Diabetes affects upward of 30% of South Bronx residents. The Centers for Disease Control and Prevention's National Diabetes Prevention Program (NDPP) reduces risk of progression to diabetes, yet implementation has been elusive within health disparities populations. METHODS: This community-based, collaborative project piloted the NDPP in the South Bronx and evaluated implementation challenges and enablers. The New York State training group prepared community peer lifestyle coaches recruited by a community organization...
October 2016: Journal of Continuing Education in the Health Professions
https://www.readbyqxmd.com/read/28341901/hypoplastic-left-heart-syndrome-is-not-associated-with-worse-clinical-or-neurodevelopmental-outcomes-than-other-cardiac-pathologies-after-the-norwood-sano-operation
#18
Billie-Jean Martin, I De Villiers Jonker, Ari R Joffe, Gwen Y Bond, Bryan V Acton, David B Ross, Charlene M T Robertson, Ivan M Rebeyka, Joseph Atallah
There is evidence to suggest that patients undergoing a Norwood for non-HLHS anatomy may have lower mortality than classic HLHS, but differences in neurodevelopmental outcome have not been assessed. Our objective was to compare survival and neurodevelopmental outcome during the same surgical era in a large, well-described cohort. All subjects who underwent a Norwood-Sano operation between 2005 and 2014 were included. Follow-up clinical, neurological, and developmental data were obtained from the Western Canadian Complex Pediatric Therapies Follow-up Program database...
March 24, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28330522/passive-range-of-motion-exercise-to-enhance-growth-in-infants-following-the-norwood-procedure-a-safety-and-feasibility-trial
#19
Linda M Lambert, Felicia L Trachtenberg, Victoria L Pemberton, Janine Wood, Shelley Andreas, Robin Schlosser, Teresa Barnard, Kaitlyn Daniels, Ann T Harrington, Nicholas Dagincourt, Thomas A Miller
OBJECTIVE: The aim of this study was to evaluate the safety and feasibility of a passive range of motion exercise programme for infants with CHD. Study design This non-randomised pilot study enrolled 20 neonates following Stage I palliation for single-ventricle physiology. Trained physical therapists administered standardised 15-20-minute passive range of motion protocol, for up to 21 days or until hospital discharge. Safety assessments included vital signs measured before, during, and after the exercise as well as adverse events recorded through the pre-Stage II follow-up...
March 23, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28329111/hypoplastic-left-heart-syndrome-a-novel-surgical-strategy-for-small-volume-centres
#20
Margaux Pontailler, Régis Gaudin, Marien Lenoir, Ayman Haydar, Diala Kraiche, Damien Bonnet, Pascal Vouhé, Olivier Raisky
OBJECTIVES: We describe in a prospective study, a novel surgical technique for the management of hypoplastic left heart syndrome inspired by the hybrid Norwood approach. METHODS: This new neonatal palliation comprises replacement of the patent ductus arteriosus (PDA) and aortic arch plasty with a pulmonary homograft associated with the banding of both pulmonary arteries and atrial septectomy, under cardiopulmonary bypass without aortic clamping and cardioplegia...
May 1, 2017: European Journal of Cardio-thoracic Surgery
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