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https://www.readbyqxmd.com/read/28287055/congenital-pulmonary-lymphangiectasia-and-early-mortality-after-stage-1-reconstruction-procedures
#1
Jeremy L Herrmann, Mallory L Irons, Christopher E Mascio, Jack Rychik, Thomas L Spray, J William Gaynor, Jennifer E Pogoriler
OBJECTIVES: Pulmonary lymphangiectasia associated with hypoplastic left heart syndrome with an intact or restrictive atrial septum may result from increased left atrial pressure, and is associated with worse outcomes following staged reconstruction due to lung dysfunction and significant hypoxaemia. Our objective was to characterise the incidence of pulmonary lymphangiectasia in cases of early mortality following stage 1 reconstructions. METHODS: An institutional cardiac surgical database was retrospectively searched for patients who died within 30 days following a stage 1 reconstruction between 1 January, 1984 and 31 December, 2013...
March 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28268011/hands-on-surgical-training-of-congenital-heart-surgery-using-3-dimensional-print-models
#2
Shi-Joon Yoo, Thomas Spray, Erle H Austin, Tae-Jin Yun, Glen S van Arsdell
OBJECTIVE: Patient-based congenital heart surgery (CHS) training is opportunity-based and difficult. Three-dimensional (3D) print models of the heart were used for hands-on surgical training (HOST) at the 2015 AATS and subsequently in 2 local institutions. We aim to introduce the process of 3D printing for surgical simulation and to present the attendee's responses. METHODS: Using CT or MR angiograms, the models of congenital heart disease were created and printed with flexible rubberlike material...
February 9, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28263233/cardiotoxic-arrhythmogenic-effects-of-1-1-difluoroethane-due-to-electrolyte-imbalance-and-cardiomyocyte-damage
#3
Kaushal Joshi, Michael Barletta, John Wurpel
Inhalant abuse is the intentional inhalation of chemical vapors to attain euphoric effects. Many common household products are abused by inhalation and one is 1,1-difluoroethane (DFE), which is a halogenated hydrocarbon used in refrigeration, dust-off spray, and airbrush painting. Although many human DFE abuse cases have been studied, the etiology and mechanism of sudden death is still unknown. In this study, an animal model was used to simulate the human conditions of DFE inhalation abuse that results in sudden death...
March 3, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28261841/a-sensitive-quantitative-assay-for-the-determination-of-propafenone-and-two-metabolites-5-hydroxypropafenone-and-n-depropylpropafenone-in-human-k2edta-plasma-using-lc-ms-ms-with-esi-operated-in-a-positive-mode
#4
Harilal Patel, Ashok Ghoghari, Chandrakant Bhatt, Shaival Shah, Anilkumar Jha, Nirmal Desai, Nuggehally R Srinivas
Propafenone is a potent antiarrhythmic agent; clinically propafenone has been used for a number of cardiac arrhythmias because it possesses multiple modes of action, via beta adrenergic receptor blockade and calcium antagonistic activity. Propafenone (PPF) exhibits extensive saturable presystemic biotransformation (first pass effect) resulting into two active metabolites; 5- hydroxypropafenone (5-OH PPF) formed by CYP2D6 and N-depropylpropafenone (NDP) formed by both CYP3A4 and CYP1A2 enzymes. A specific and sensitive LC-MS/MS method was developed and validated for quantitation of PPF, 5-OH PPF and NDP using turboion spray in a positive ion mode...
March 6, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28235402/anti-mycobacteria-potential-and-synergistic-effects-of-combined-crude-extracts-of-selected-medicinal-plants-used-by-bapedi-traditional-healers-to-treat-tuberculosis-related-symptoms-in-limpopo-province-south-africa
#5
Nancy Patience Motlalepula Komape, Victor Patrick Bagla, Prudence Kabongo-Kayoka, Peter Masoko
BACKGROUND: Tuberculosis is an infectious communicable disease and the causative agent of the disease has over the years developed resistance to streamline chemotherapeutic agents with dire consequences and there is a need for development of new and more potent alternatives. METHODS: Constituents of leaves material of Combretum heroroense, Citrus lemon and Apodytes dimidiata were serially extracted using solvents of varying polarity. TLC finger print profile of the different extracts were determined by spraying eluted plates with vanillin sulphuric acid and 2, 2- diphenylpicryl hydrazyl (DPPH) for the presence of antioxidant constituents...
February 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28068869/a-regenerative-cardiac-patch-formed-by-spray-painting-of-biomaterials-onto-the-heart
#6
Junnan Tang, Adam Vandergriff, Zegen Wang, Michael Taylor Hensley, Jhon Cores, Tyler A Allen, Phuong-Uyen Dinh, Jinying Zhang, Thomas George Caranasos, Ke Cheng
Layering a regenerative polymer scaffold on the surface of the heart, termed as a cardiac patch, has been proven to be effective in preserving cardiac function after myocardial infarction (MI). However, the placement of such a patch on the heart usually needs open-chest surgery, which is traumatic, therefore prevents the translation of this strategy into the clinic. We sought to device a way to apply a cardiac patch by spray painting in situ polymerizable biomaterials onto the heart with a minimally invasive procedure...
March 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28063720/a-case-of-cardiac-arrest-that-occurred-on-a-high-mountain-in-which-a-favorable-outcome-was-obtained
#7
Youichi Yanagawa, Kazuhiko Omori, Ikuto Takeuchi, Kei Jitsuiki, Toshihiko Yoshizawa, Kouhei Ishikawa, Yumi Kando, Mutsumu Fukata, Hiromichi Ohsaka
A 36-year-old man started to climb Mount Fuji (3776m above sea level: ASL), from the Gotemba new fifth station (2400m ASL). He had no significant medical history, and this was his first attempt to climb such a high mountain. He began feeling chest discomfort but continued to climb. When he reached the ninth station of the mountain (3600mASL), he lost consciousness. One individual immediately provided basic life support using an automated external defibrillator (AED) that was located in the station. After electroshocks, he regained consciousness...
October 24, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28049727/allosteric-transmission-along-a-loosely-structured-backbone-allows-a-cardiac-troponin-c-mutant-to-function-with-only-one-ca-2-ion
#8
Mayra de A Marques, Jose Renato Pinto, Adolfo H Moraes, Anwar Iqbal, Mariana T Q de Magalhães, Jamila Monteiro, Murilo M Pedrote, Martha M Sorenson, Jerson L Silva, Guilherme A P de Oliveira
Hypertrophic cardiomyopathy (HCM) is one of the most common cardiomyopathies and a major cause of sudden death in young athletes. The Ca(2+) sensor of the sarcomere, cardiac troponin C (cTnC), plays an important role in regulating muscle contraction. Although several cardiomyopathy-causing mutations have been identified in cTnC, the limited information about their structural defects has been mapped to the HCM phenotype. Here, we used high-resolution electron-spray ionization mass spectrometry (ESI-MS), Carr-Purcell-Meiboom-Gill relaxation dispersion (CPMG-RD), and affinity measurements of cTnC for the thin filament in reconstituted papillary muscles to provide evidence of an allosteric mechanism in mutant cTnC that may play a role to the HCM phenotype...
February 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27943590/a-collagen-cardiac-patch-incorporating-alginate-microparticles-permits-the-controlled-release-of-hgf-and-igf-1-to-enhance-cardiac-stem-cell-migration-and-proliferation
#9
Hugh S O'Neill, Janice O'Sullivan, Niamh Porteous, Eduardo Ruiz Hernandez, Helena M Kelly, Fergal J O'Brien, Garry P Duffy
Cardiac Stem Cells (CSCs) represent a logical cell type to exploit as a regenerative treatment option for tissue damage accrued as a result of a myocardial infarction (MI). However, the isolation and expansion of CSCs prior to cell transplantation is time-consuming, costly and invasive, and the reliability of cell expansion may also prove to be a major obstacle in the clinical application of CSC based transplantation therapy after a MI. In order to overcome this, we propose the incorporation of growth factor-eluting alginate microparticles (MPs) into collagen-based scaffolds as an implantable biomaterial to promote the recruitment and expansion of CSCs in the myocardium...
December 12, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27919455/potential-benefits-and-consequences-of-public-reporting-of-pediatric-cardiac-surgery-outcomes
#10
EDITORIAL
J William Gaynor, Sara K Pasquali, Richard G Ohye, Thomas L Spray
No abstract text is available yet for this article.
October 28, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27869543/direct-bonding-of-chitosan-biomaterials-to-tissues-using-transglutaminase-for-surgical-repair-or-device-implantation
#11
Javier G Fernandez, Suneil Seetharam, Christopher Ding, Juani Feliz, Ed Doherty, Donald E Ingber
Natural biomaterials, such as chitosan and collagen, are useful for biomedical applications because they are biocompatible, mechanically robust, and biodegradable, but it is difficult to rapidly and tightly bond them to living tissues. In this study, we demonstrate that the microbial transglutaminase (mTG), can be used to rapidly (<5 min) bond chitosan and collagen biomaterials to the surfaces of hepatic, cardiac, and dermal tissues, as well as to functionalized polydimethylsiloxane (PDMS) materials that are used in medical products...
February 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27834765/a-comparison-of-perioperative-management-of-anomalous-aortic-origin-of-a-coronary-artery-between-an-adult-and-pediatric-cardiac-center
#12
Jeremy L Herrmann, Leah A Goldberg, Abigail M Khan, Sara L Partington, Julie A Brothers, Christopher E Mascio, Thomas L Spray, Yuli Y Kim, Stephanie Fuller
BACKGROUND: Anomalous aortic origin of a coronary artery (AAOCA) presents in varying age-groups. Assuming management algorithms differ between pediatric and adult institutions, we compared the perioperative management of patients with AAOCA at two such centers. METHODS: A retrospective review was conducted at a pediatric and an adult institution of patients 14 years or older who underwent surgical repair of AAOCA between January 2000 and May 2014. RESULTS: Twenty patients from the pediatric center (median age: 16...
November 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27763916/hemodynamic-instability-following-airway-spray-cryotherapy
#13
Alessia Pedoto, Dawn P Desiderio, David Amar, Robert J Downey
BACKGROUND: Spray cryotherapy (SCT) of airway lesions is used to effectively palliate respiratory symptoms related to airway obstruction, but significant intraoperative hemodynamic complications have been noted. We reviewed the experience at a single institution using SCT for the treatment of obstructive airway tumors. METHODS: A retrospective review of a single institution experience with intraoperative and postoperative hemodynamic complications associated with SCT was performed...
November 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27680535/safety-and-pain-in-electrodiagnostic-studies
#14
REVIEW
Zachary N London
Discomfort is an unavoidable part of electrodiagnostic (EDX) studies. The most readily modifiable mediator of electromyography (EMG)-associated pain is muscle selection. Interventions that may reduce pain include vapocoolant spray, ibuprofen, and techniques such as slapping or stretching the skin. Needlestick injuries to health care workers carry the risk of transmitting bloodborne illnesses, but other infectious complications of EDX studies are very rare. EMG probably contributes to asymptomatic hemorrhage in approximately 1% of patients, but clinically significant bleeding has only been reported a few times...
February 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/27590462/vapocoolant-spray-versus-lidocaine-infiltration-for-radial-artery-cannulation-a-prospective-randomized-controlled-clinical-trial
#15
Dirk Rüsch, Tilo Koch, Florian Seel, Leopold Eberhart
OBJECTIVES: Local infiltration with lidocaine is a frequently used measure to prevent pain during arterial cannulation. Its administration is associated with pain. Vapocoolants like ethyl chloride or alkanes also affect rapid-onset anesthesia. However, their administration causes less discomfort compared with administration of lidocaine. The effectiveness of vapocoolants in mitigating discomfort associated with arterial cannulation never has been studied. The authors therefore compared vapocoolant with lidocaine for reducing discomfort caused by arterial cannulation...
June 8, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27501598/comparison-of-spraying-and-nebulized-lidocaine-in-patients-undergoing-esophago-gastro-duodenoscopy-a-randomized-trial
#16
RANDOMIZED CONTROLLED TRIAL
Papiroon Noitasaeng, Phongthara Vichitvejpaisal, Uaypom Kaosombatwattana, Jaiyen Tassanee, Siriwongsa Suwannee
OBJECTIVE: Esophago-gastro-duodenoscopy (EGD) was performed under the topical anesthesia of the pharynx. However spraying lidocaine was found to be an annoying maneuver to patients, while nebulized lidocaine appeared to efficiently suppress gags and cough reflexes in airway anesthesia. This study aimed to compare the effectiveness of spraying and nebulized lidocaine for patients undergoing EGD. MATERIAL AND METHOD: A total of 110 patients undergoing elective EGD, with a history of neither lidocaine intolerance nor irritable airways due to smoking, chronic obstructive pulmonary disease (COPD), upper respiratory infection, asthma, cardiac and pulmonary diseases and allergy to lidocaine were included...
May 2016: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
https://www.readbyqxmd.com/read/27344675/transient-complete-heart-block-secondary-to-bed-bug-insecticide-a-case-of-pyrethroid-cardiac-toxicity
#17
Hemindermeet Singh, Faraz Khan Luni, Bharat Marwaha, Syed Sohail Ali, Mohammed Alo
Pyrethroids are the major components of various commercially used insect repellants. These are less toxic to humans due to their slow absorption and rapid metabolism. However, cases of suicidal and accidental poisoning with household insecticides are not uncommon. We report a case of a 59-year-old female who presented with syncope after an accidental exposure to bed bug repellant spray at home. She was found to be in complete heart block and was treated conservatively. There was complete resolution of symptoms and atrioventricular conduction abnormality on day 2 of hospitalization...
June 25, 2016: Cardiology
https://www.readbyqxmd.com/read/27321986/simulator-teaching-of-cardiopulmonary-bypass-complications-a-prospective-randomized-study
#18
Jeremy L C Smelt, Simon Phillips, Colin Hamilton, Paul Fricker, Dominic Spray, Justin L Nowell, Marjan Jahangiri
OBJECTIVE: Complications of cardiopulmonary bypass (CPB) are rare, but life-threatening events that need prompt and rehearsed actions involving a team. This is not adequately taught to cardiothoracic surgical trainees. The objective of this study was to assess the knowledge of cardiothoracic trainees required to manage these events after simulation-based vs. lecture-based teaching. PARTICIPANTS AND DESIGN: Totally, 17 cardiac surgical trainees with no formal teaching in intraoperative complications of CPB management were randomly assigned by computer to either a study group receiving simulation-based complications of CPB teaching via the Orpheus simulator (n = 9) or a control group receiving complications of CPB teaching via a lecture (n = 8)...
November 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27183886/increasing-cumulative-exposure-to-volatile-anesthetic-agents-is-associated-with-poorer-neurodevelopmental-outcomes-in-children-with-hypoplastic-left-heart-syndrome
#19
Laura K Diaz, J William Gaynor, Shannon J Koh, Richard F Ittenbach, Marsha Gerdes, Judy C Bernbaum, Elaine H Zackai, Robert R Clancy, Mohamed A Rehman, Jeffrey W Pennington, Nancy Burnham, Thomas L Spray, Susan C Nicolson
OBJECTIVES: Despite improved survival in children with hypoplastic left heart syndrome (HLHS), significant concern persists regarding their neurodevelopmental (ND) outcomes. Previous studies have identified patient factors, such as prematurity and genetic syndromes, to be associated with worse ND outcomes. However, no consistent relationships have been identified among modifiable management factors, including cardiopulmonary bypass strategies, and ND outcomes after cardiac surgery in infancy...
August 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/26914479/improved-assessment-of-outcomes-following-transient-global-cerebral-ischemia-in-mice
#20
Stine Spray, Lars Edvinsson
Mouse models of global cerebral ischemia (GCI) allow experimental examination of cerebral pathophysiology in genetically modified mice and fast screening of new treatment strategies. Various surgical protocols of GCI-induction in mice have been published; however, many of these studies are hindered by limited neurological assessment protocols and present insufficient reporting of the cumulative survival rate. Therefore, we aim at developing a reproducible and easily implementable model of transient GCI in mice with minimal impact on normal mouse behavior...
July 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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