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https://www.readbyqxmd.com/read/28931249/v3-vertebral-artery-to-anterior-inferior-cerebellar-artery-bypass-with-saphenous-vein-graft-for-vertebrobasilar-ischemia-3-dimensional-operative-video
#1
Arnau Benet, Xuequan Feng, Michael T Lawton
No abstract text is available yet for this article.
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28930514/weight-and-metabolic-outcomes-12-years-after-gastric-bypass
#2
Ted D Adams, Lance E Davidson, Sheldon E Litwin, Jaewhan Kim, Ronette L Kolotkin, M Nazeem Nanjee, Jonathan M Gutierrez, Sara J Frogley, Anna R Ibele, Eliot A Brinton, Paul N Hopkins, Rodrick McKinlay, Steven C Simper, Steven C Hunt
BACKGROUND: Few long-term or controlled studies of bariatric surgery have been conducted to date. We report the 12-year follow-up results of an observational, prospective study of Roux-en-Y gastric bypass that was conducted in the United States. METHODS: A total of 1156 patients with severe obesity comprised three groups: 418 patients who sought and underwent Roux-en-Y gastric bypass (surgery group), 417 patients who sought but did not undergo surgery (primarily for insurance reasons) (nonsurgery group 1), and 321 patients who did not seek surgery (nonsurgery group 2)...
September 21, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28930454/chemical-bypass-of-general-base-catalysis-in-hedgehog-protein-cholesterolysis-using-a-hyper-nucleophilic-substrate
#3
Daniel Ciulla, Michael Jorgensen, Jose-Luis Giner, Brian P Callahan
Proteins in the hedgehog family undergo self-catalyzed endoproteolysis involving nucleophilic attack by a molecule of cholesterol. Recently, a conserved aspartate residue (D303, or D46) of hedgehog was identified as the general base that activates cholesterol during this unusual autoprocessing event; mutation of the catalyzing functional group (D303A) reduces activity by >104 fold. Here we report near total rescue of this ostensibly dead general base mutant by a synthetic substrate, 3ß-hydroperoxycholestane (3HPC) in which the sterol -OH group is replaced by the hyper nucleophilic -OOH group...
September 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28930435/new-triplet-sensitization-routes-for-photon-upconversion-thermally-activated-delayed-fluorescence-molecules-inorganic-nanocrystals-and-singlet-to-triplet-absorption
#4
Nobuhiro Yanai, Nobuo Kimizuka
Photon upconversion based on triplet-triplet annihilation (TTA-UC) has attracted much interest because of its possible applications to renewable energy production and biological fields. In particular, the UC of near-infrared (NIR) light to visible (vis) light is imperative to overcome the Shockley-Queisser limit of single-junction photovoltaic cells, and the efficiency of photocatalytic hydrogen production from water can also be improved with the aid of vis-to-ultraviolet (UV) UC. However, both processes have met limitations in the wavelength range, efficiency, and sensitivity for weak incident light...
September 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28930238/a-thrombomodulin-gene-polymorphism-c1418t-is-associated-with-early-outcomes-in-patients-undergoing-coronary-artery-bypass-graft-surgery-with-a-conventional-cardiopulmonary-bypass-during-hospitalization
#5
Ching-Chou Pai, Yi-Wen Lin, Yi-Ting Tsai, Shih-Hurng Loh, Chih-Yuan Lin, Chin-Sheng Lin, Yi-Chang Lin, Hung-Yen Ke, Feng-Yen Lin, Chien-Sung Tsai
Background: Thrombomodulin (TM) is a type of cell membrane-bound anticoagulant protein cofactor in the thrombin-mediated activation of protein C. Previous evidence has shown an association between TM polymorphisms and systemic inflammation. Conventional cardiopulmonary bypass (CPB), beating-heart CPB, and off-pump techniques have been widely used in cardiac surgery. However, these techniques may also cause systemic inflammatory responses in the patients. Whether TM polymorphisms are associated with systemic inflammation after cardiac surgery is still unclear...
April 23, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929425/medium-term-outcomes-after-reversal-of-roux-en-y-gastric-bypass
#6
Gustavo Andrés Arman, J Himpens, R Bolckmans, D Van Compernolle, R Vilallonga, G Leman
BACKGROUND: Roux-en-Y gastric bypass (RYGB) can be reversed into normal anatomy (NA) or into sleeve gastrectomy (NASG) to address undesired side effects. Concomitant hiatal hernia repair (HHR) may be required. Before reversal, some patients benefit from placement of a gastrostomy, mostly to predict the result of recreating the native anatomy. METHODS: Retrospective study on mid-term effects of RYGB reversal to NA and NASG, including clinical and weight evolution, surgical complications, and incidence of gastro-esophageal reflux (GERD)...
September 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28929278/effect-and-mechanisms-of-diabetes-resolution-according-to-the-range-of-gastric-resection-and-the-length-of-anastomosis-in-animal-models-implication-for-gastric-cancer-surgery-in-patients-with-diabetes-mellitus
#7
Yeon-Ju Huh, Young-Gil Son, Tae-Han Kim, Ji-Ho Park, Tae-Jung Oh, Boram Choi, Jimin Min, Young Min Cho, Han-Kwang Yang, Hyuk-Joon Lee
BACKGROUND: To examine the effect and mechanism of Roux-en-Y gastric bypass (RYGB) on the improvement of diabetes according to the length of anastomosis and the gastric pouch volume in an animal model. METHODS: Glucose intolerance was induced with a high-fat diet for 3 months in Sprague-Dawley rats. The animals were subjected to conventional RYGB (cRYGB; 5% gastric pouch with 15-cm Roux limb, 40-cm biliopancreatic limb; n = 9), short-limb RYGB (sRYGB; 5%, 8, 4 cm; n = 9), fundus-sparing RYGB (fRYGB; 30%, 8, 4 cm; n = 9), or sham operation (n = 9)...
September 19, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28929218/percutaneous-gastric-remnant-gastrostomy-following-roux-en-y-gastric-bypass-surgery-a-single-tertiary-center-s-13-year-experience
#8
Shehbaz Hasam Shaikh, Justin Jay Stenz, David W McVinnie, James J Morrison, Todd Getzen, Arthur M Carlin, Farhaan R Mir
PURPOSE: The purpose of the study is to evaluate the indications, techniques, and outcomes for percutaneous gastrostomy placement in the gastric remnant following Roux-en-Y gastric bypass (RYGB) in bariatric patients. MATERIALS AND METHODS: Retrospective chart review and summary statistical analysis was performed on all RYGB patients that underwent attempted percutaneous remnant gastrostomy placement at our institution between April 2003 and November 2016. RESULTS: A total of 38 patients post-RYGB who underwent gastric remnant gastrostomy placement were identified, 32 women and 6 men, in which a total of 41 procedures were attempted...
September 19, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28928989/an-unusual-case-of-recurrent-hypersensitivity-reaction-associated-with-kounis-like-acute-coronary-syndrome
#9
Shanker Kundumadam, Vivek Reddy, Sagar Mallikethi Reddy, Pradeep Kathi, Aiden Abidov
There have been multiple reports of allergic reactions associated with acute coronary syndromes. This has been classically described as Kounis syndrome. We present an unusual case of 70-year-old male with multiple prior hypersensitivity reactions and history of coronary artery bypass grafting who presented recurrent episode of severe angioedema and anaphylaxis. He responded to epinephrine but subsequently developed a non-ST elevation myocardial infarction with worsening heart failure. Our case is unique in that, unlike classic Kounis syndrome, the acute coronary event in this case did not present concurrently with the allergic reaction; rather it took nearly 48 hours to present...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28928725/the-neurospora-crassa-pp2a-regulatory-subunits-rgb1-and-b56-are-required-for-proper-growth-and-development-and-interact-with-the-ndr-kinase-cot1
#10
Hila Shomin-Levi, Oded Yarden
COT1 is the founding member of the highly conserved nuclear Dbf2-related (NDR) Ser/Thr kinase family and plays a role in the regulation of polar growth and development in Neurospora crassa and other fungi. Changes in COT1 phosphorylation state have been shown to affect hyphal elongation, branching, and conidiation. The function of NDR protein kinases has been shown to be regulated by type 2A protein phosphatases (PP2As). PP2As are heterotrimers comprised of a catalytic and scaffolding protein along with an interchangeable regulatory subunit involved in determining substrate specificity...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28928718/analysing-microbial-community-composition-through-amplicon-sequencing-from-sampling-to-hypothesis-testing
#11
REVIEW
Luisa W Hugerth, Anders F Andersson
Microbial ecology as a scientific field is fundamentally driven by technological advance. The past decade's revolution in DNA sequencing cost and throughput has made it possible for most research groups to map microbial community composition in environments of interest. However, the computational and statistical methodology required to analyse this kind of data is often not part of the biologist training. In this review, we give a historical perspective on the use of sequencing data in microbial ecology and restate the current need for this method; but also highlight the major caveats with standard practices for handling these data, from sample collection and library preparation to statistical analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28928618/congenital-left-atrial-appendage-aneurysm-atypical-presentation
#12
Mehdi Bamous, Mahdi Aithoussa, Ayoub Abetti, Abdelatif Boulahya
Congenital left atrial appendage aneurysm is a rare condition caused by dysplasia of the atrial muscles. We report a case of a 14-year-old boy, with a 5-month history of cough and in sinus rhythm. Transthoracic echocardiography and computerized tomographic angiography confirmed the aneurysm of the left atrial appendage which was resected through median sternotomy on cardiopulmonary bypass. This case is presented not only for its rarity but also for its atypical clinical presentation.
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28928610/does-heart-type-fatty-acid-binding-protein-predict-clinical-outcomes-after-pediatric-cardiac-surgery
#13
Egmond S Evers, Varsha Walavalkar, Suresh Pujar, Latha Balasubramanian, Frits W Prinzen, Tammo Delhaas, Ward Y Vanagt, Shreesha Maiya
INTRODUCTION: The early identification of vulnerable pediatric cardiac surgery patients can help clinicians provide them with timely support. Heart-type fatty acid-binding protein. (H-FABP) is an early biomarker of myocardial injury in acute myocardial infarction in adults. In this study, we evaluated the correlations between postoperative H-FABP, creatine kinase-myocardial band (CK-MB), troponin-I, total bypass time, and clinical outcomes. METHODS: In 32 pediatric patients that underwent ventricular septal defect...
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28928592/the-journey-of-harmless-bullet-the-perioperative-care-of-penetrating-cardiac-injury
#14
Ahmad Abou-Leila, Gennadiy Voronov
Traumatic injuries to the heart contribute significantly to trauma are associated with high mortality. Cardiac gunshot wounds (GSW) are considered more lethal compared to other injuries and present several unique challenges to the anesthesia management and perioperative care. We are reporting a rare case of a trauma victim who survived a GSW to the heart. We will discuss the perioperative care of penetrating cardiac injuries, the role of the anesthesia team in resuscitation, safe anesthesia induction, cardiopulmonary bypass management, and the essential role of intraoperative transesophageal echocardiogram imaging...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28928326/a-delayed-acute-complication-of-bariatric-surgery-gastric-remnant-haemorrhagic-ulcer-after-roux-en-y-gastric-bypass
#15
Stefan Patrascu, Carmen Balague Ponz, Sonia Fernandez Ananin, Eduardo M Targarona Soler
Acute gastric remnant bleeding is an exceptionally rare complication when it occurs long after bariatric surgery. We present the case of a patient with a bleeding ulcer of the excluded stomach (i.e., the remnant), occurring 7 years after Roux-en-Y gastric bypass (RYGB) for morbid obesity. A computed tomography scan managed to locate the active bleeding source in the gastric remnant. During emergency laparotomy, a bleeding ulcer of the fundic region of the excluded stomach was identified. Total resection of the remnant was performed, with good post-operative recovery...
September 20, 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28927471/a-vascular-endothelial-growth-factor-a-genetic-variant-is-associated-with-improved-ventricular-function-and-transplant-free-survival-after-surgery-for-non-syndromic-chd
#16
Constantine D Mavroudis, Daniel Seung Kim, Nancy Burnham, Alexandra H Morss, Jerry H Kim, Amber A Burt, David R Crosslin, Donna M McDonald-McGinn, Elaine H Zackai, Meryl S Cohen, Susan C Nicolson, Thomas L Spray, Ian B Stanaway, Deborah A Nickerson, Mark W Russell, Hakon Hakonarson, Gail P Jarvik, J William Gaynor
BACKGROUND: We have previously shown that the minor alleles of vascular endothelial growth factor A (VEGFA) single-nucleotide polymorphism rs833069 and superoxide dismutase 2 (SOD2) single-nucleotide polymorphism rs2758331 are both associated with improved transplant-free survival after surgery for CHD in infants, but the underlying mechanisms are unknown. We hypothesised that one or both of these minor alleles are associated with better systemic ventricular function, resulting in improved survival...
September 20, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28927380/financial-burden-of-survivors-of-medically-managed-myocardial-infarction-and-its-association-with-selected-social-determinants-and-quality-of-life-in-a-lower-middle-income-country
#17
P K B Mahesh, M W Gunathunga, S Jayasinghe, S M Arnold, D S V Mallawarachchi, S K Perera, U A D Wijesinghe
BACKGROUND: Burden from ischemic heart disease is rising in Sri Lanka due to the demographic and epidemiological transitions. Documented literature is scarce on quality of life, financial burden and its determinants in relation to myocardial infarction (MI). This study was done to describe the financial burden among the survivors of MI managed only with drugs (i.e. those who did not undergo Percutaneous Coronary Intervention or Coronary Artery Bypass Graft) and its association with selected social determinants (SDHs) and quality of life (QOL)...
September 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28927349/hospital-readmissions-after-elective-lower-extremity-vascular-procedures
#18
Todd R Vogel, Jamie B Smith, Robin L Kruse
Background This study evaluated risk factors associated with 30-day readmission after open and endovascular lower extremity revascularization. Methods Patients admitted with peripheral artery disease and lower extremity procedures were selected from national electronic medical record data, Cerner Health Facts® (2008-2014). Thirty-day readmission was determined. Logistic regression models identified characteristics independently associated with readmission. Results There were 2781 open and 2611 endovascular procedures...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28927219/internal-maxillary-artery-to-m2-middle-cerebral-artery-bypass-with-modified-superficial-temporal-artery-graft-3-dimensional-operative-video
#19
Arnau Benet, Ali Tayebi Meybodi, Xuequan Feng, Michael T Lawton
No abstract text is available yet for this article.
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927217/surgical-technique-for-high-flow-internal-maxillary-artery-to-middle-cerebral-artery-bypass-using-a-superficial-temporal-artery-interposition-graft
#20
Xuequan Feng, Ali Tayebi Meybodi, Jordina Rincon-Torroella, Ivan H El-Sayed, Michael T Lawton, Arnau Benet
BACKGROUND: Extracranial-to-intracranial high-flow bypass often requires cranial, cervical, and graft site incisions. The internal maxillary artery (IMA) has been proposed as a donor to decrease invasiveness, but its length is insufficient for direct intracranial bypass. We report interposition of a superficial temporal artery (STA) graft for high-flow IMA to middle cerebral artery (MCA) bypass using a middle fossa approach. OBJECTIVE: To assess the feasibility of an IMA-STA graft-MCA bypass using a new middle fossa approach...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
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