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https://www.readbyqxmd.com/read/28346001/assessment-of-contrast-enhanced-ultrasonography-of-the-hepatic-vein-for-detection-of-hemodynamic-changes-associated-with-experimentally-induced-portal-hypertension-in-dogs
#1
Keitaro Morishita, Akira Hiramoto, Asuka Michishita, Satoshi Takagi, Yuki Hoshino, Takaharu Itami, Sue Yee Lim, Tatsuyuki Osuga, Sayuri Nakamura, Kenji Ochiai, Kensuke Nakamura, Hiroshi Ohta, Masahiro Yamasaki, Mitsuyoshi Takiguchi
OBJECTIVE To assess the use of contrast-enhanced ultrasonography (CEUS) of the hepatic vein for the detection of hemodynamic changes associated with experimentally induced portal hypertension in dogs. ANIMALS 6 healthy Beagles. PROCEDURES A prospective study was conducted. A catheter was surgically placed in the portal vein of each dog. Hypertension was induced by intraportal injection of microspheres (10 to 15 mg/kg) at 5-day intervals via the catheter. Microsphere injections were continued until multiple acquired portosystemic shunts were created...
April 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28345881/silane-and-germane-molecular-electronics
#2
Timothy A Su, Haixing Li, Rebekka S Klausen, Nathaniel T Kim, Madhav Neupane, James L Leighton, Michael L Steigerwald, Latha Venkataraman, Colin Nuckolls
This Account provides an overview of our recent efforts to uncover the fundamental charge transport properties of Si-Si and Ge-Ge single bonds and introduce useful functions into group 14 molecular wires. We utilize the tools of chemical synthesis and a scanning tunneling microscopy-based break-junction technique to study the mechanism of charge transport in these molecular systems. We evaluated the fundamental ability of silicon, germanium, and carbon molecular wires to transport charge by comparing conductances within families of well-defined structures, the members of which differ only in the number of Si (or Ge or C) atoms in the wire...
March 27, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28344917/fatal-complications-after-pediatric-surgical-interventions-lessons-learned
#3
Willemijn M Klein, Mayke E Van der Putten, Benno Kusters, Bas H Verhoeven
Placement of catheters, drains, shunts, and tubes in children can lead to serious or even fatal complications at the moment of placement, such as hemorrhage at insertion, or in the longterm, such as infections and migration into adjacent organs. The clinician should always be aware of these potential complications, especially if the child is unwell. For postmortem diagnostic evaluation, either with a computed tomography scan or an invasive autopsy, all tubes, drains, shunts, and/or catheters should be left in situ...
January 2017: European Journal of Pediatric Surgery Reports
https://www.readbyqxmd.com/read/28343178/fetal-cardiac-tumors-clinical-features-management-and-prognosis
#4
Shi-Min Yuan
Fetal cardiac tumors are rare and usually benign. While echocardiography is a reliable technique for diagnosing fetal cardiac tumors, their definitive diagnosis relies on pathological examination. The strategies used to manage fetal cardiac tumors are challenging. A good clinical result is their complete regression during pregnancy or shortly after birth, as often occurs with cardiac rhabdomyomas. Moreover, the fetal prognosis depends on the nature of the tumors, namely, their location, size, number and associated complications...
March 27, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28342922/smartphones-and-programmable-shunts-are-these-indispensable-phones-safe-as-well-as-smart
#5
Sait Ozturk, Hakan Cakin, Huseyin Kurtuldu, Onur Kocak, Fatih S Erol, Metin Kaplan
No abstract text is available yet for this article.
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28342684/persistent-pulmonary-hypertension-of-the-newborn
#6
REVIEW
Mamta Fuloria, Judy L Aschner
Failure of the normal circulatory adaptation to extrauterine life results in persistent pulmonary hypertension of the newborn (PPHN). Although this condition is most often secondary to parenchymal lung disease or lung hypoplasia, it may also be idiopathic. PPHN is characterized by elevated pulmonary vascular resistance with resultant right-to-left shunting of blood and hypoxemia. Although the preliminary diagnosis of PPHN is often based on differential cyanosis and labile hypoxemia, the diagnosis is confirmed by echocardiography...
March 23, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28341575/the-use-of-a-colapinto-tips-needle-under-cone-beam-computed-tomography-guidance-for-true-lumen-re-entry-in-subintimal-recanalization-of-chronic-iliac-artery-occlusion
#7
Huei-Lung Liang, Ming-Feng Li, Chia-Ling Chiang, Matt Chiung-Yu Chen, Chieh-Jen Wu, Huay-Ben Pan
BACKGROUND: To report the technique and clinical outcome of subintimal re-entry in chronic iliac artery occlusion by using a Colapinto transjugular intrahepatic portosystemic shunt (TIPS) needle under rotational angiography (cone-beam computed tomography; CT) imaging guidance. METHODS: Patients with chronic iliac artery occlusion with earlier failed attempts at conventional percutaneous recanalization during the past 5 years were enrolled in our study. In these patients, an ipsilateral femoral access route was routinely utilized in a retrograde fashion...
March 21, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28340289/remote-ischaemic-conditioning-decreases-blood-flow-and-improves-oxygen-extraction-in-patients-with-early-complex-regional-pain-syndrome
#8
T Hegelmaier, N Kumowski, T Mainka, J Vollert, O Goertz, M Lehnhardt, P K Zahn, C Maier, J Kolbenschlag
BACKGROUND: Remote ischaemic conditioning (RIC) is the cyclic application of non-damaging ischaemia leading to an increased tissue perfusion, among others triggered by NO (monoxide). Complex regional pain syndrome (CRPS) is known to have vascular alterations such as increased blood shunting and decreased NO blood-levels, which in turn lead to decreased tissue perfusion. We therefore hypothesized that RIC could improve tissue perfusion in CRPS. METHOD: In this proof-of-concept study, RIC was applied in the following groups: in 21 patients with early CRPS with a clinical history less than a year, in 20 age/sex-matched controls and in 12 patients with unilateral nerve lesions via a tourniquet on the unaffected/non-dominant upper limb...
March 24, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28338118/unusual-discovery-after-an-examination-for-abdominal-pain-abernethy-1b-malformation-and-liver-adenomatosis-a-case-report
#9
Romeo Ioan Chira, Adriana Calauz, Simona Manole, Simona Valean, Petru Adrian Mircea
Congenital extrahepatic portosystemic shunt (Abernethy malformation) is a rare condition characterized by developmental abnormalities of the portal venous system resulting in the diversion of the portal blood from the liver to the systemic venous system through a complete or partial shunt of the portomesenteric blood. We report the case of an 18 year-old female examined for abdominal pain, presenting cholestasis syndrome and an elevated serum aspartate aminotransferase level. Liver ultrasound examination revealed the absence of the portal vein with a complete extrahepatic shunt of the portal blood, multiple focal liver lesions, and multiple associated vascular anomalies...
March 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28335998/point-shear-wave-elastography-to-evaluate-and-monitor-changing-portal-venous-pressure-in-patients-with-decompensated-cirrhosis
#10
Hao Han, Jian Yang, Yu-Zheng Zhuge, Ming Zhang, Min Wu
This study evaluated whether the stiffness of the liver and spleen, measured using the point shear wave elastography (pSWE) technique, correlates with portal venous pressure (PVP) and whether the result extends to estimate the diminishing change in PVP (ΔPVP) in patients with decompensated cirrhosis. We evaluated the data of 67 prospectively enrolled patients who underwent both transjugular intrahepatic portosystemic shunt (TIPS) and pSWE. The stiffness of liver and spleen were evaluated by measuring shear wave velocity (SWV) to determine the statistical correlation with PVP...
March 20, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28333183/machine-learning-algorithms-for-objective-remission-and-clinical-outcomes-with-thiopurines
#11
Akbar K Waljee, Kay Sauder, Anand Patel, Sandeep Segar, Boang Liu, Yiwei Zhang, Ji Zhu, Ryan W Stidham, Ulysses Balis, Peter D R Higgins
Background and Aims: Big data analytics leverage patterns in data to harvest valuable information, but are rarely implemented in clinical care. Optimising thiopurine therapy for inflammatory bowel disease [IBD] has proved difficult. Current methods using 6-thioguanine nucleotide [6-TGN] metabolites have failed in randomized controlled trials [RCTs], and have not been used to predict objective remission [OR]. Our aims were to: 1) develop machine learning algorithms [MLA] using laboratory values and age to identify patients in objective remission on thiopurines; and 2) determine whether achieving algorithm-predicted objective remission resulted in fewer clinical events per year...
March 14, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28332345/high-incidence-of-virulence-factors-among-clinical-enterococcus-faecalis-isolates-in-southwestern-iran
#12
Hamid Heidari, Somayeh Hasanpour, Hadi Sedigh Ebrahim-Saraie, Mohammad Motamedifar
BACKGROUND: Over the past two decades, enterococci have emerged as an important agent responsible for hospital acquired infection. Several virulence factors contribute to the adherence, colonization, evasion of the host immune response, and pathogenicity and severity of the infection. Enterococcus faecalis is the most common and virulent species causing infections in hospitalized patients. The aim of the present study was to examine the prevalence of genes encoding virulence factors and antimicrobial resistance patterns of E...
March 13, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28332154/altered-cerebrospinal-fluid-dynamics-in-neurofibromatosis-type-l-severe-arachnoid-thickening-in-patients-with-neurofibromatosis-type-1-may-cause-abnormal-csf-dynamic
#13
Young Sill Kang, Eun-Kyung Park, Yong-Oock Kim, Ju-Seong Kim, Dong-Seok Kim, U W Thomale, Kyu-Won Shim
INTRODUCTION: The object of this study is to understand abnormal dynamic of cerebrospinal fluid (CSF) in patients with neurofibromatosis type 1 (NF1), which may cause temporal lobe herniation and bulging of temporal fossa. METHODS: Four patients, three females and one male, with NF1 were studied retrospectively. They presented with a similar craniofacial deformity, which consisted of pulsatile exophthalmos, an enlarged bony orbit, dysplasia of the sphenoid wing with the presence of a herniation of the temporal lobe into the orbit, and a bulging temporal fossa...
March 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28332153/valve-exchange-towards-an-adjustable-differential-pressure-valve-with-gravitational-unit-clinical-outcome-of-a-single-center-study
#14
S Alavi, M Schulz, A Schaumann, K Schwarz, Ulrich W Thomale
OBJECTIVE: Overdrainage in children is a long-term problem for shunted patients which might lead to chronic anatomical changes. In order to prevent these problems, valve exchange is performed on a regular basis in patients without hydrostatic units towards a valve with both an adjustable and a gravitational unit. The clinical outcome of these patients is reported in a retrospective study. METHODS: Between 2009 and 2014, the in-house database was analyzed for patients who received a valve exchange towards an adjustable differential pressure valve with gravitational unit...
March 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28331772/an-automated-gravity-driven-csf-drainage-system-decreases-complications-and-lowers-costs
#15
Robert E Lieberson, Jan Eckermann, William Meyer, Tung Trang
BACKGROUND: FlowSafe(TM) (BeckerSmith Medical, Irvine, CA, USA) is a novel, robotic, external lumbar drainage (ELD) system, which was designed to control cerebrospinal fluid (CSF) drainage, reduce complications, and decrease treatment costs. METHODS:  Forty-seven consecutive neurosurgical patients requiring ELD were treated using the FlowSafe system. RESULTS: In 39 of 40 patients with traumatic and surgical dural openings, potential CSF leaks were avoided...
February 3, 2017: Curēus
https://www.readbyqxmd.com/read/28331646/conversion-of-low-flow-priapism-to-high-flow-state-using-t-shunt-with-tunneling
#16
Neil A Mistry, Nicholas N Tadros, Jason C Hedges
Introduction. The three types of priapism are stuttering, arterial (high-flow, nonischemic), and venoocclusive (low-flow, ischemic). These are usually distinct entities and rarely occur in the same patient. T-shunts and other distal shunts are frequently combined with tunneling, but a seldom recognized potential complication is conversion to a high-flow state. Case Presentation. We describe 2 cases of men who presented with low-flow priapism episodes that were treated using T-shunts with tunneling that resulted with both men having recurrent erections shortly after surgery that were found to be consistent with high-flow states...
2017: Case Reports in Urology
https://www.readbyqxmd.com/read/28331438/clinical-images-interventional-management-of-pediatric-rex-shunt-stenosis
#17
Corey Area, David Kirsch, Lena Gowharji
No abstract text is available yet for this article.
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28329461/cardiac-function-after-tetralogy-of-fallot-complete-atrioventricular-canal-repair
#18
Elizabeth H Stephens, Jennifer Tingo, Marc Najjar, Betul Yilmaz, Stéphanie Levasseur, Jeffrey D Dayton, Ralph S Mosca, Paul Chai, Jan M Quaegebeur, Emile A Bacha
BACKGROUND: Repair of complete atrioventricular canal (CAVC) with tetralogy of Fallot (TOF) is a challenging operation increasingly being performed as a complete, primary repair in infancy. Previous studies have focused on perioperative outcomes; however, midterm valve function, ventricular function, and residual obstruction have received little attention. METHODS: We retrospectively reviewed 20 patients who underwent CAVC/TOF repair (January 2005 to December 2014)...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329375/long-term-outcome-of-patients-with-right-atrial-isomerism-after-common-atrioventricular-valve-plasty%C3%A2
#19
Kenta Imai, Masaya Murata, Yujiro Ide, Mikio Sugano, Hiroki Ito, Kazuyoshi Kanno, Motonori Ishido, Ryohei Fukuba, Kisaburo Sakamoto
OBJECTIVES: To review long-term outcomes of patients with right atrial (RA) isomerism who underwent common atrioventricular valve (CAVV) plasty. METHODS: We retrospectively analysed 59 patients with RA isomerism operated on between January 2004 and April 2016. We divided patients into those with CAVV plasty (CAVV plasty (+), 29 patients) and without CAVV plasty (CAVV plasty (-), 30), and we compared the outcome between the groups. We further divided patients into those with CAVV plasty before bidirectional cavopulmonary shunt (BCPS) operation (group before BCPS, 13 patients) or CAVV plasty with or after BCPS (group with or after BCPS, 16), and we compared the outcome between these groups...
March 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329193/a-successful-transdiaphragmatic-shunting-for-a-late-and-recurrent-pericardial-effusion-following-coronary-bypass
#20
Nicolas Themelin, Serge Cappeliez, Jean-Jacques Houben, Badih El Nakadi
Although pericardial effusion (PE) is common after cardiac surgery, late and recurrent cardiac tamponade that occurs more than 5-7 days after coronary artery bypass grafting is an infrequent complication. Moreover, the treatment of PE resistant to medical therapy, percutaneous drainage and pleuro-pericardial window remains a therapeutic challenge. We report the case of a recalcitrant PE with high-daily volume outflow drainage, finally treated with success, with a transdiaphragmatic pleuro-peritoneal shunting by laparoscopic approach...
February 16, 2017: Interactive Cardiovascular and Thoracic Surgery
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