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https://www.readbyqxmd.com/read/28214079/postoperative-ischemic-stroke-and-death-prediction-with-cha2ds2-vasc-score-in-patients-having-coronary-artery-bypass-grafting-surgery-a-nationwide-cohort-study
#1
Wei-Syun Hu, Cheng-Li Lin
OBJECTIVES: This nationwide cohort study was attempted to address the predictive ability of CHA2DS2-VASc score in both ischemic stroke and death in patients undergoing coronary artery bypass grafting (CABG) surgery. METHODS: We identified patients aged ≥18years undergoing de novo CABG between January 1, 2000 and December 31, 2011. We calculated CHA2DS2-VASc score for each study patient. We used univariable and multivariable Cox proportional hazards regression models to measure the hazard ratios (HRs) and 95% confidence intervals (CIs) for ischemic stroke and death associated with CHA2DS2-VASc score in the study patients...
February 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28209960/-right-sided-pneumonectomy-with-left-atrium-resection-under-cardiopulmonary-bypass-in-the-patient-with-lung-cancer-the-first-case-in-russia
#2
Yu V Belov, R N Komarov, V D Parshin, A G Yavorovsky, S V Chernyavsky, G V Mnatsakanyan
No abstract text is available yet for this article.
2017: Khirurgiia
https://www.readbyqxmd.com/read/28207437/lack-of-association-between-preoperative-statin-use-and-respiratory-and-neurologic-complications-after-cardiac-surgery
#3
Ryu Komatsu, Huseyin Oguz Yilmaz, Jing You, C Allen Bashour, Shobana Rajan, Edward G Soltesz, Daniel I Sessler, Alparslan Turan
BACKGROUND: Statins may reduce the risk of pulmonary and neurologic complications after cardiac surgery. METHODS: The authors acquired data for adults who had coronary artery bypass graft, valve surgery, or combined procedures. The authors matched patients who took statins preoperatively to patients who did not. First, the authors assessed the association between preoperative statin use and the primary outcomes of prolonged ventilation (more than 24 h), pneumonia (positive cultures of sputum, transtracheal fluid, bronchial washings, and/or clinical findings consistent with the diagnosis of pneumonia), and in-hospital all-cause mortality, using logistic regressions...
February 16, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28203538/robotic-mitral-valve-repair-for-degenerative-posterior-leaflet-prolapse
#4
Hoda Javadikasgari, Rakesh M Suri, Bassman Tappuni, Ashley M Lowry, Tomislav Mihaljevic, Stephanie Mick, A Marc Gillinov
BACKGROUND: Robotic mitral valve (MV) repair is the least invasive surgical approach to the MV and provides unparalleled access to the valve. We sought to assess technical aspects and clinical outcomes of robotic MV repair for isolated posterior leaflet prolapse by examining the first 623 such cases performed in a tertiary care center. METHODS: We reviewed the first 623 patients (mean age 56±9.7 years) with isolated posterior leaflet prolapse who underwent robotic primary MV repair from 01/2006 to 11/2013...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203537/robotic-cardiac-surgery-in-brazil
#5
Robinson Poffo, Alisson P Toschi, Renato B Pope, Paola K Montanhesi, Ricardo S Santos, Alexandre Teruya, Dina M Hatanaka, Gabriel F Rusca, Claudio H Fischer, Marcelo C Vieira, Marcia R Makdisse
BACKGROUND: Brazil, the largest country and economy in South America, is a major driving force behind the development of new medical technologies in the region. Robotic cardiac surgery (RCS) has been evolving rapidly since 2010, when the first surgery using the DaVinci(®) robotic system was performed in Latin America. The aim of this article is to evaluate short and mid-term results in patients undergoing robotic cardiac surgery in Brazil. METHODS: From March 2010 to December 2015, 39 consecutive patients underwent robotic cardiac surgery...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203408/determinants-of-prolonged-intensive-care-unit-stay-in-patients-after-cardiac-surgery-a-prospective-observational-study
#6
Theodore Kapadohos, Epameinondas Angelopoulos, Ioannis Vasileiadis, Serafeim Nanas, Anastasia Kotanidou, Andreas Karabinis, Katerina Marathias, Christina Routsi
BACKGROUND: Prolonged intensive care unit (ICU) stay of patients after cardiac surgery has a major impact on overall cost and resource utilization. The aim of this study was to identify perioperative factors which prolong stay in ICU. METHODS: All adult patients from a single, specialized cardiac center who were admitted to the ICU after cardiac surgery during a 2-month period were included. Demographic and clinical characteristics, comorbidities, preoperative use of drugs, intraoperative variables, and postoperative course were recorded...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28201840/clinical-response-to-dorsal-duct-drainage-via-the-minor-papilla-in-refractory-obstructing-chronic-calcific-pancreatitis
#7
Chang-Il Kwon, Mark A Gromski, Stuart Sherman, Ihab I El Hajj, Jeffrey J Easler, James Watkins, Lee McHenry, Glen A Lehman, Evan L Fogel
Background and study aims Complete stone removal from the main pancreatic duct might not be achieved in all patients with obstructive chronic calcific pancreatitis. We report our results for endoscopic dorsal pancreatic duct (DPD) bypass of obstructing stones in the ventral pancreatic duct (VPD). Patients and methods 16 patients with obstructive chronic calcific pancreatitis were treated with a DPD bypass. Clinical success was defined as significant pain relief and no hospital admissions for pain management during the ongoing treatment period...
February 15, 2017: Endoscopy
https://www.readbyqxmd.com/read/28194733/surgical-management-for-achalasia-after-coronary-artery-bypass-graft-using-the-right-gastroepiploic-artery-a-case-report
#8
Ryo Muranushi, Tatsuya Miyazaki, Hideyuki Saito, Kengo Kuriyama, Tomonori Yoshida, Yuji Kumakura, Hiroaki Honjyo, Takehiko Yokobori, Makoto Sakai, Makoto Sohda, Hiroyuki Kuwano
BACKGROUND: The right gastroepiploic artery is commonly used in coronary artery bypass grafting. Appropriate strategies are required when performing upper abdominal surgeries after the right gastroepiploic artery has been used in coronary artery bypass grafting because compressing or injuring the graft may cause myocardial ischemia and fatal arrhythmias. To our knowledge, this is the first reported case of surgery for achalasia performed after coronary artery bypass grafting using the right gastroepiploic artery...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28192883/ozone-protects-rat-heart-against-ischemia-reperfusion-injury-a-role-for-oxidative-preconditioning-in-attenuating-mitochondrial-injury
#9
Weixin Meng, Ying Xu, Dandan Li, Erjun Zhu, Li Deng, Zonghong Liu, Guowei Zhang, Hongyu Liu
Ischemia-reperfusion injury (IRI) is a major cause of cardiac dysfunction during cardiovascular surgery, heart transplantation and cardiopulmonary bypass procedures. The purpose of the present study was to explore, firstly, whether ozone induces oxidative preconditioning by activation of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and, secondly, whether ozone oxidative preconditioning (OzoneOP) can protect the heart against IRI by attenuating mitochondrial damage. Rats were subjected to 30min of cardiac ischemia followed by 2h of reperfusion, with or without prior OzoneOP (100μg/kg/day) for 5 days...
February 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28191623/the-ivy-sign-on-fluid-attenuated-inversion-recovery-images-related-to-single-photon-emission-computed-tomography-cerebral-blood-flow-in-moyamoya-disease-a-case-report
#10
Fumihiro Matano, Yasuo Murai, Asami Kubota, Takayuki Mizunari, Shiro Kobayashi, Akio Morita
BACKGROUND: Moyamoya disease is an idiopathic progressive cerebrovascular steno-occlusive disorder characterized by the formation of numerous collaterals called moyamoya vessels. Accurate evaluation of vascular status and CBF is needed for prompt treatment to prevent ischemic and/or hemorrhagic events. The pathogenesis of the ivy sign on fluid attenuated inversion recovery (FLAIR) images of moyamoya disease patients is unclear. We report a moyamoya disease case wherein the ivy sign changed in relation to SPECT-measured CBF during progression and following treatment...
January 17, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28190549/comparing-del-nido-and-conventional-cardioplegia-in-infants-and-neonates-in-congenital-heart-surgery
#11
Kamal K Pourmoghadam, Mark Ruzmetov, Michael C O'Brien, Kurt D Piggott, Gary Plancher, Sukumar Suguna Narasimhulu, Tavya Benjamin, William M Decampli
BACKGROUND: The aim of this study was to evaluate outcome measures after the use of del Nido (dN) cardioplegia compared with conventional multidose high-potassium (non-dN) cardioplegia in neonates and infants. METHODS: We retrospectively analyzed data in patients, aged younger than 1 year, undergoing cardiopulmonary bypass (CPB) from January 2012 to August 2015. We changed our cardioplegia protocol from non-dN to dN administered in a single or infrequently dosed strategy in September 2013...
February 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28188446/treatment-options-for-egfr-t790m-negative-egfr-tyrosine-kinase-inhibitor-resistant-non-small-cell-lung-cancer
#12
Salvatore Corallo, Ettore D'Argento, Antonia Strippoli, Michele Basso, Santa Monterisi, Sabrina Rossi, Alessandra Cassano, Carlo M Barone
The introduction of first- and second-generation EGFR-tyrosine kinase inhibitors (TKIs) (gefitinib, erlotinib and afatinib) for the treatment of advanced EGFR-mutant non-small cell lung cancer (NSCLC) has dramatically improved patients' prognosis and quality of life (QoL). Unfortunately, after an initial and sometimes durable benefit from EGFR-TKI therapy, all patients with EGFR-mutant lung cancer eventually become resistant to the treatment and experience disease progression. In approximately 50% of these patients, genomic alterations in the EGFR kinase domain resulting in the mutant T790M are responsible for the resistance and this has led to the development of novel EGFR inhibitors active against mutant-T790M EGFR...
February 10, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/28186406/substrate-trapping-in-the-siderophore-tailoring-enzyme-pvdq
#13
Kenneth D Clevenger, Romila Mascarenhas, Daniel Catlin, Rui Wu, Neil L Kelleher, Eric J Drake, Andrew M Gulick, Dali Liu, Walter Fast
Siderophore biosynthesis by Pseudomonas aeruginosa enhances virulence and represents an attractive drug target. PvdQ functions in the type-1 pyoverdine biosynthetic pathway by removing a myristoyl anchor from a pyoverdine precursor, allowing eventual release from the periplasm. A circularly permuted version of PvdQ bypasses the self-processing step of this Ntn-hydrolase and retains the activity, selectivity, and structure of wild-type PvdQ, as revealed by a 1.8 Å resolution X-ray crystal structure. A 2.55 Å resolution structure of the inactive S1A/N269D-cpPvdQ mutant in complex with the pyoverdine precursor PVDIq reveals a specific binding pocket for the d-Tyr of this modified peptide substrate...
February 15, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28185100/effects-of-acetoacetyl-coa-synthase-expression-on-production-of-farnesene-in-saccharomyces-cerevisiae
#14
Stefan Tippmann, Raphael Ferreira, Verena Siewers, Jens Nielsen, Yun Chen
Efficient production of sesquiterpenes in Saccharomyces cerevisiae requires a high flux through the mevalonate pathway. To achieve this, the supply of acetyl-CoA plays a crucial role, partially because nine moles of acetyl-CoA are necessary to produce one mole of farnesyl diphosphate, but also to overcome the thermodynamic constraint imposed on the first reaction, in which acetoacetyl-CoA is produced from two moles of acetyl-CoA by acetoacetyl-CoA thiolase. Recently, a novel acetoacetyl-CoA synthase (nphT7) has been identified from Streptomyces sp...
February 9, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28183578/a-case-of-central-diabetes-insipidus-after-ketamine-infusion-during-an-external-to-internal-carotid-artery-bypass
#15
Sharib Gaffar, Jonathan P Eskander, Burton D Beakley, Brian P McClure, Peter Amenta, Nakeisha Pierre
STUDY OBJECTIVE: We report the first teenage case of ketamine-induced transient central diabetes insipidus. CASE SUMMARY: The patient was an 18-year-old woman with moyamoya disease undergoing an external carotid to internal carotid bypass and given a low-dose ketamine infusion. After approximately 2 hours in the supine position, with 0.5 Minimum Alveolar Concentration (MAC) of sevoflurane, a propofol infusion at 50 μg/kg/min, a remifentanil infusion at 0.5 μg/kg/min, and a ketamine infusion at a dose of 10 μg/kg/min, this patient had an excessive urine output...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28182288/the-place-of-crowdfunding-in-the-discovery-of-scientific-and-social-value-of-medical-research
#16
Lorenzo Del Savio
Crowdfunding is increasingly common in medical research. Some critics are concerned that by adopting crowdfunding, some researchers may sidestep the established systems of review of the social and scientific value of studies (e.g. impact on disease burden, issues of justice), especially mechanisms of expert-based review. I argue firstly that such concerns are based on a misleading picture of how research value is assessed and secondly that crowdfunding may turn out to be an useful complement of extant funding systems...
February 9, 2017: Bioethics
https://www.readbyqxmd.com/read/28182034/topical-vasodilator-response-in-skeletonized-internal-mammary-artery-is-there-really-a-difference
#17
Syed Raza Shah, Syed Arbab Shah, Muhammad Ahmed Jangda, Mohammad Danial Yaqub, Ayesha Altaf Jangda, Maham Khan, Muhammad Asim Khan, Brian Tomkins
AIM OF THE STUDY: Coronary artery bypass graft surgery is the gold standard for the treatment of multivessel and left main coronary artery disease. However, there is considerable debate that whether left internal mammary artery (IMA) should be taken as pedicled or skeletonized. This study was conducted to assess the difference in blood flow after the application of topical vasodilator in skeletonized and pedicled IMA. MATERIALS AND METHODS: In this study, each patient underwent either skeletonized (n = 25) or pedicled IMA harvesting (n = 25)...
January 2017: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/28181086/bilateral-cavernous-carotid-aneurysms-treated-by-two-stage-extracranial-intracranial-bypass-followed-by-parent-artery-occlusion-case-report-and-literature-review
#18
Yaoling Liu, Xiang'en Shi, Fangjun Liu, Yuming Sun, Hai Qian, Ting Lei
Bilateral cavernous carotid aneurysms (CCAs) are often not amenable to neurosurgical clipping or endovascular coiling. Here, we report the case of a 50-year-old female who presented with a 1-year history of gradual severe headache. Preoperative angiograms revealed bilateral CCAs. Among these findings, the right giant CCA had been trapped after the external carotid artery-saphenous vein-middle cerebral artery (ECA-SV-MCA) bypass 8 years prior. Additionally, the left CCA was again trapped after the internal maxillary artery-radial artery-middle cerebral artery (IMA-RA-MCA) bypass, followed by parent artery occlusion (PAO), because of the enlargement of a 0...
February 8, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28167316/subwavelength-motion-correction-for-ultrafast-ultrasound-localization-microscopy
#19
Vincent Hingot, Claudia Errico, Mickael Tanter, Olivier Couture
Ultrafast Ultrasound Localization Microscopy uses microbubbles that are individually localized with a resolution below 10μm. Positions of the microbubbles are accumulated to create a super resolution image, which bypass the diffraction-limit of spatial resolution. However, microbubbles localization is affected by physiological motions at the micrometric scale. Here, we demonstrate a phase correlation method for rigid motion correction. Spatiotemporal filters extract tissue dominated images, which are tracked to correct linear motions and improve the precision of microbubbles' localization, improving the quality of the image...
January 18, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28165159/assessment-of-myocardial-ischemia-by-strain-dobutamine-stress-echocardiography-and-cardiac-magnetic-resonance-perfusion-imaging-before-and-after-coronary-artery-bypass-grafting
#20
Assami Rösner, Henrik Schirmer, Amjid Iqbal, Bart Bijnens, Derk Avenarius, Siri Malm
BACKGROUND: Following coronary artery bypass grafting (CABG), testing for myocardial ischemia by noninvasive imaging is often hampered by false-positive results. The aim of this study was to find test parameters with the best potential to identify myocardial ischemia in post-CABG patients. METHODS: Fifty-two consecutive patients scheduled for CABG, underwent both dobutamine stress echocardiography (DSE) and cardiac magnetic resonance first-pass perfusion imaging (CMR-FPPI) with adenosine vasodilation, before and 8-10 months after the surgical revascularization...
February 6, 2017: Echocardiography
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