keyword
MENU ▼
Read by QxMD icon Read
search

Blalock

keyword
https://www.readbyqxmd.com/read/28525548/computational-fluid-dynamics-characterization-of-pulsatile-flow-in-central-and-sano-shunts-connected-to-the-pulmonary-arteries-importance-of-graft-angulation-on-shear-stress-induced-platelet-mediated-thrombosis
#1
Robert Ascuitto, Nancy Ross-Ascuitto, Martin Guillot, Carey Celestin
OBJECTIVES: Central (aorta) and Sano (right ventricle)-to-pulmonary artery (PA) shunts, palliative operations for infants with complex heart defects, can develop life-threatening thrombosis. We employed computational fluid dynamics (CFD) to study pulsatile flow in these shunts, with the goal to identify haemodynamic characteristics conducive to thrombus formation. METHODS: CFD, using the finite volume method with cardiac catheterization data, and computer simulations, based on angiography, were employed to determine flow-velocity field, wall shear stress (WSS) profile and oscillatory shear index (OSI)...
May 19, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28520941/risk-factors-for-in-hospital-shunt-thrombosis-and-mortality-in-patients-weighing-less-than-3%C3%A2-kg-with-functionally-univentricular-heart-undergoing-a-modified-blalock-taussig-shunt%C3%A2
#2
Voravit Chittithavorn, Pongsanae Duangpakdee, Chareonkiat Rergkliang, Napat Pruekprasert
OBJECTIVES: To determine the association between several perioperative variables and in-hospital shunt thrombosis and mortality in patients weighing less than 3 kg with functional univentricular heart (UVH) who underwent modified Blalock-Taussig shunt. METHODS: Between January 2006 and February 2016, 85 patients who weighed less than 3 kg with functional UVH and underwent modified Blalock-Taussig shunt were reviewed. In-hospital shunt thrombosis and mortality were the primary outcomes...
May 17, 2017: Interactive Cardiovascular and Thoracic 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
#3
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
#4
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/28444210/initial-shunt-type-at-the-norwood-operation-impacts-myocardial-function-in-hypoplastic-left-heart-syndrome%C3%A2
#5
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/28421915/use-of-a-modified-classic-bt-shunt-in-a-patient-with-multiple-conduit-obstructions-with-positive-lupus-anticoagulant
#6
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/28412153/the-effect-of-counseling-on-willingness-to-use-a-hypothetical-medication-and-perceptions-of-medication-safety
#7
Michael Bitonti, Payal Patel, Rebecca Dickinson, Peter Knapp, Susan J Blalock
BACKGROUND: Poor medication adherence is an ongoing issue, and contributes to increased hospitalizations and healthcare costs. Although most adverse effects are rare, the perceived risk of adverse effects may contribute to low adherence rates. OBJECTIVES: The objective of this study was to determine how adverse effect likelihood and pharmacist counseling on adverse effect prevention affects individuals': (1) willingness to use a hypothetical medication and (2) perceptions of medication safety...
March 31, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28393796/modified-blalock-taussig-shunt-and-levosimendan-for-left-ventricular-preparation-in-a-child-with-transposition-of-great-arteries-and-regressed-ventricle-undergoing-rapid-2-stage-arterial-switch-operation
#8
Manoj Kumar Sahu, Anish Gupta, Intekhab Alam, Sarvesh Pal Singh, Ramesh Menon, V Devagouru
Rapid two-stage arterial switch operation (ASO) is very relevant as many patients of transposition of great arteries (TGA) present late to the hospital when primary switch either is not possible or carries a high risk of morbidity and mortality. Hence, other means apart from the traditional methods of left ventricle preparedness should be tried to help this category of patients, who are to undergo rapid two-stage ASO. We successfully used levosimendan and continuous positive airway pressure after 1st stage operation in a patient with dTGA and regressed ventricle, which helped in left ventricular preparedness, and the child underwent rapid two-stage ASO uneventfully...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28383929/personality-strengths-in-romantic-relationships-measuring-perceptions-of-benefits-and-costs-and-their-impact-on-personal-and-relational-well-being
#9
Todd B Kashdan, Dan V Blalock, Kevin C Young, Kyla A Machell, Samuel S Monfort, Patrick E McKnight, Patty Ferssizidis
Three studies using samples of people in romantic relationships were conducted to create a new individual difference measure of partner strengths in couples. The 2 perceptions of partner strengths included (1) appreciation of their use and effectiveness and (2) recognition of costs associated with their use. Factor analyses supported 2-factors and we found that greater appreciation of partner strengths predicted greater relationship satisfaction, commitment, investment, intimacy, self-expansion, and support for goal pursuit; recognizing significant costs with partner strengths was inversely related to several outcomes...
April 6, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28382440/tetralogy-of-fallot-surgical-repair-shunt-configurations-ductus-arteriosus-and-the-circle-of-willis
#10
Senol Piskin, Gozde Unal, Ahmet Arnaz, Tayyar Sarioglu, Kerem Pekkan
In this study, hemodynamic performance of three novel shunt configurations that are considered for the surgical repair of tetralogy of Fallot (TOF) disease are investigated in detail. Clinical experience suggests that the shunt location, connecting angle, and its diameter can influence the post-operative physiology and the neurodevelopment of the neonatal patient. An experimentally validated second order computational fluid dynamics (CFD) solver and a parametric neonatal diseased great artery model that incorporates the ductus arteriosus (DA) and the full patient-specific circle of Willis (CoW) are employed...
April 5, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28381428/doxycycline-improves-clinical-outcomes-during-cystic-fibrosis-exacerbations
#11
Xin Xu, Tarek Abdalla, Preston E Bratcher, Patricia L Jackson, Gina Sabbatini, J Michael Wells, Xiang-Yang Lou, Rebecca Quinn, J Edwin Blalock, J P Clancy, Amit Gaggar
Matrix metalloprotease-9 (MMP-9) plays a role in progression of cystic fibrosis, and doxycycline can reduce MMP-9 in vitro Here, we explore the effect of doxycycline during cystic fibrosis exacerbation treatment on MMP-9 related readouts and clinical end-points.This randomised, double-blind, placebo-controlled study enrolled hospitalised patients with cystic fibrosis undergoing exacerbation. In total, 20 participants were given doxycycline and 19 participants were given placebo over an 8-day period during hospitalisation...
April 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28380701/falls-risks-and-prevention-behaviors-among-community-dwelling-homebound-and-non-homebound-older-adults
#12
Carri Casteel, Jennifer Jones, Paula Gildner, James M Bowling, Susan J Blalock
The objectives were to examine falls risk factors to determine how the magnitude of risk may differ between homebound and non-homebound older adults, and to describe falls prevention behaviors and participation in falls prevention education. A cross-sectional survey was conducted with convenience samples of community-dwelling older adults recruited through Meals on Wheels programs (homebound, n = 80) and senior centers (non-homebound, n = 84) in North Carolina. Data were collected during home visits and included an interview and medication inventory...
October 1, 2016: Journal of Applied Gerontology: the Official Journal of the Southern Gerontological Society
https://www.readbyqxmd.com/read/28380592/effects-of-the-interaction-of-forage-and-supplement-type-on-digestibility-and-ruminal-fermentation-in-beef-cattle
#13
M R Stierwalt, H M Blalock, T L Felix
The objectives of this research were to test interactions of supplement type, liquid versus dry, and forage type, hay versus corn stover, on digestibility and ruminal metabolism of beef cattle. Ruminally fistulated steers were fed in a replicated 4 × 4 Latin square with a 2 × 2 factorial arrangement of treatments: 1) hay with liquid supplement, 2) hay with dry supplement, 3) corn stover with liquid supplement, and 4) corn stover with dry supplement. The liquid supplement was molasses and glycerin based (23...
February 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28365601/productivity-of-senior-dental-students-engaged-in-comprehensive-care-a-seven-year-follow-up-study
#14
John S Blalock, Richard S Callan, Anthony G Mollica
The aims of this study were to determine the trend of senior dental students' rate of production of clinical procedures performed in the comprehensive care clinic at one U.S. dental school and to compare that trend to what was reported immediately following inception of that clinic. In addition, total clinic revenues collected were recorded and compared. The periods used for comparisons were 2005 and 2006 combined, the last years before introduction of comprehensive care (called "pre-comp care"); 2007 and 2008 combined, the first two years of comprehensive care (called "post-comp care"); and subsequent years through 2014...
April 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28303931/the-development-of-novel-lta4h-modulators-to-selectively-target-ltb4-generation
#15
Caroline M Low, Samia Akthar, Dhiren F Patel, Stephan Löser, Chi-Tung Wong, Patricia L Jackson, J Edwin Blalock, Stephen A Hare, Clare M Lloyd, Robert J Snelgrove
The pro-inflammatory mediator leukotriene B4 (LTB4) is implicated in the pathologies of an array of diseases and thus represents an attractive therapeutic target. The enzyme leukotriene A4 hydrolase (LTA4H) catalyses the distal step in LTB4 synthesis and hence inhibitors of this enzyme have been actively pursued. Despite potent LTA4H inhibitors entering clinical trials all have failed to show efficacy. We recently identified a secondary anti-inflammatory role for LTA4H in degrading the neutrophil chemoattractant Pro-Gly-Pro (PGP) and rationalized that the failure of conventional LTA4H inhibitors may be that they inadvertently prevented PGP degradation...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300528/functional-near-tricuspid-atresia-in-a-patient-with-absent-pulmonary-valve-and-an-intact-ventricular-septum
#16
Yasunobu Miki, Toshikatsu Tanaka, Yoshihiro Oshima
Absent pulmonary valve with an intact ventricular septum is a rare malformation. We report a case of absent pulmonary valve and intact ventricular septum with functional near-tricuspid atresia caused by pulmonary regurgitation. Initial palliation with main pulmonary artery ligation and bilateral pulmonary artery banding was performed at 1 day of age. More antegrade flow across the tricuspid valve was recognised postoperatively, resulting in a successful right ventricular outflow tract reconstruction by a hand-sewn bileaflet polytetrafluoroethylene valve and modified Blalock-Taussig shunt at 11 days of age...
March 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28281413/percutaneous-closure-of-multiple-ventricular-septal-defects-simultaneous-use-of-muscular-ventricular-septal-defect-device-and-multi-fenestrated-septal-occluder-cribriform-to-close-residual-ventricular-septal-defects-after-complex-cardiac-surgery-in-a-child
#17
Shreesha S Maiya, Smruti V Patel, Chinnaswamy Reddy, Suresh V Pujar
A male child, with d-transposition of great arteries, a large perimembranous ventricular septal defect, multiple additional ventricular septal defects, small muscle-bound right ventricle, and severe pulmonary stenosis with confluent, moderate-sized branch pulmonary arteries, underwent an emergency right modified Blalock-Taussig shunt on day 15 of life and réparation à l'étageventriculaire procedure with ventricular septal defect closure with takedown of the Blalock-Taussig shunt at 2.5 years of age. On follow-up, he showed a moderate residual upper ventricular septal defect and multiple apical ventricular septal defects, mild mid-right pulmonary artery stenosis, free pulmonary regurgitation, and right ventricular dysfunction...
January 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28274521/cavopulmonary-anastomosis-during-same-hospitalization-as-stage-1-norwood-hybrid-palliative-surgery
#18
MULTICENTER STUDY
Sachin D Tadphale, Xinyu Tang, Nahed O ElHassan, Brandon Beam, Parthak Prodhan
BACKGROUND: Limited literature has examined characteristics of infants with hypoplastic left heart syndrome (HLHS) who remain hospitalized during the interstage period. We described their epidemiologic characteristics, in-hospital outcomes, and identified risk factors that predict the need for superior cavopulmonary anastomosis (SCPA) during the same hospitalization. METHODS: This retrospective multicenter database analysis included infants with HLHS who underwent stage 1 palliation from 2004 through 2013...
April 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28268644/tunable-somatosensory-stimulation-for-selective-sleep-restriction-studies-in-rodents
#19
Dillon M Huffman, Kendra E Staggs, Farid Yaghouby, Anuj Agarwal, Bruce F O'Hara, Kevin D Donohue, Eric M Blalock, Sridhar Sunderam
Many methods for sleep restriction in rodents have emerged, but most are intrusive, lack fine control, and induce stress. Therefore, a versatile, non-intrusive means of sleep restriction that can alter sleep in a controlled manner could be of great value in sleep research. In previous work, we proposed a novel system for closed-loop somatosensory stimulation based on mechanical vibration and applied it to the task of restricting Rapid Eye Movement (REM) sleep in mice [1]. While this system was effective, it was a crude prototype and did not allow precise control over the amplitude and frequency of stimulation applied to the animal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226824/tunable-somatosensory-stimulation-for-selective-sleep-restriction-studies-in-rodents
#20
Dillon M Huffman, Kendra E Staggs, Farid Yaghouby, Anuj Agarwal, Bruce F O'Hara, Kevin D Donohue, Eric M Blalock, Sridhar Sunderam, Dillon M Huffman, Kendra E Staggs, Farid Yaghouby, Anuj Agarwal, Bruce F O'Hara, Kevin D Donohue, Eric M Blalock, Sridhar Sunderam, Eric M Blalock, Bruce F O'Hara, Kevin D Donohue, Kendra E Staggs, Sridhar Sunderam, Anuj Agarwal, Dillon M Huffman, Farid Yaghouby
Many methods for sleep restriction in rodents have emerged, but most are intrusive, lack fine control, and induce stress. Therefore, a versatile, non-intrusive means of sleep restriction that can alter sleep in a controlled manner could be of great value in sleep research. In previous work, we proposed a novel system for closed-loop somatosensory stimulation based on mechanical vibration and applied it to the task of restricting Rapid Eye Movement (REM) sleep in mice [1]. While this system was effective, it was a crude prototype and did not allow precise control over the amplitude and frequency of stimulation applied to the animal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
keyword
keyword
17968
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"