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122篇 您的检索式:作者名="Petr D"
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1Single balloon enteroscopy for endoscopic retrograde cholangiography in patients with Roux-en-Y hepaticojejuno anastomosis显示文摘AIM:To evaluate single balloon enteroscopy in diagnostic and therapeutic endoscopic retrograde cholangiography(ERC)in patients with Roux-en-Y hepaticojejunoanastomosis(HJA).METHODS:The study took place from January 2009to December 2011 and we retrospectively assessed 15patients with Roux-en-Y HJA who had signs of biliary obstruction.In total,23 ERC procedures were performed in these patients and a single balloon videoen-teroscope(Olympus SIF Q 180)was used in all of the cases.A transparent overtube was drawn over the videoenteroscope and it freely moved on the working part of the enteroscope.Its distal end was equipped with a silicone balloon that was inflated by air from an external pump at a pressure of≤5.4 kPa.The technical limitations or rather the parameters of the single balloon enteroscope(working length-200 cm,diameter of the working channel-2.8 mm,absence of Albarran bridge)showed the need for special endoscopic instrumentation.RESULTS:Cannulation success was reached in diagnostic ERC in 12 of 15 patients.ERC findings were normal in 1 of 12 patients.ERC in the remaining 11 patients showed some pathological changes.One of these(cystic bile duct dilation)was subsequently resolved surgically.Endoscopic treatment was initialized in the remaining 10 patients(5 with HJA stenosis,2 with choledocholithiasis,and 3 with both).This treatment was successful in 9 of 10 patients.The endoscopic therapeutic procedures included:balloon dilatation of HJA stenosis-11 times(7 patients);choledocholitiasis extraction-five times(5 patients);biliary plastic stent placement-six times(4 patients);and removal of biliary stents placed by us-six times(4 patients).The mean time of performing a single ERC was 72 min.The longest procedure took 110 min and the shortest took34 min.This shows that it is necessary to allow for more time in individual procedures.Furthermore,these procedures require the presence of an anesthesiologist.We did not observe any complications in these 15 patients.CONCLUSION:This method is more demanding than standard endoscopic retrograde cholangiopancreatography due to altered postsurgical anatomy.However,it is effective,safe,and widens the possibilities of resolving biliary pathology.Bohuslav Kianika Jan Lata Ivo Novotny Petr Dítě Jirí Vaníek 2013World Journal of Gastroenterology2013,19,44:2
2Polyp detection rates using magnification with narrow band imaging and white light显示文摘AIM: To compare the yield of adenomas between narrow band imaging and white light when using high definition/magnification. METHODS: This prospective, non-randomized comparative study was performed at the endoscopy unit of veteran affairs medical center in Phoenix, Arizona. Consecutive patients undergoing first average risk colorectal cancer screening colonoscopy were selected. Two experienced gastroenterologists performed all the procedures that were blinded to each other's findings. Demographic details were recorded. Data are presented as mean ± SEM. Proportional data were compared using the χ2 test and means were compared using the Student's t test. Tandem colonoscopy was performed in a sequential and segmental fashion using one of 3 strategies: white light followed by narrow band imaging [Group A: white light(WL) → narrow band imaging(NBI)]; narrow band imaging followed by white light(Group B: NBI → WL) and, white light followed by white light(Group C: WL → WL). Detection rate of missed polyps and adenomas were evaluated in all three groups. RESULTS: Three hundred patients were studied(100 in each Group). Although the total time for the colonoscopy was similar in the 3 groups(23.8 ± 0.7, 22.2 ± 0.5 and 24.1 ± 0.7 min for Groups A, B and C, respectively), it reached statistical significance between Groups B and C(P < 0.05). The cecal intubation time in Groups B and C was longer than for Group A(6.5 ± 0.4 min and 6.5 ± 0.4 min vs 4.9 ± 0.3 min; P < 0.05). The withdrawal time for Groups A and C was longer than Group B(18.9 ± 0.7 min and 17.6 ± 0.6min vs 15.7 ± 0.4 min; P < 0.05). Overall miss rate for polyps and adenomas detected in three groups during the second look was 18% and 17%, respectively(P = NS). Detection rate for polyps and adenomas after first look with white light was similar irrespective of the light used during the second look(WL → WL: 13.7% for polyps, 12.6% for adenomas; WL → NBI: 14.2% for polyps, 11.3% for adenomas). Miss rate of polyps and adenomas however was significantly higher when NBI was used first(29.3% and 30.3%, respectively; P < 0.05). Most missed adenomas were ≤ 5 mm in size. There was only one advanced neoplasia(defined by size only) missed during the first look. CONCLUSION: Our data suggest that the tandem nature of the procedure rather than the optical techniques was associated with the detection of additional polyps' and adenomas.Nooman Gilani Sally Stipho James D Panetta Sorin Petre Michele A Young Francisco C Ramirez 2015World Journal of Gastrointestinal Endoscopy2015,7,5:2
3Effects of arsenic on cell metabolism and cell proliferation: Cytogenetic and biochemical studies显示文摘Petres J Baron D Hagedorn M 1977Environmental Health Perspectives1977,19,:1
4Studies on some raw material characteristic in different Swedish apple varieties 显示文摘Nikolaos E M Petr D Ingegerd S 2004Journal of Food Engineering2004,62,:1
5The Permanency of pulmonary vein isolation using a bal- loon cryoablation catheter显示文摘HUMERA AHMED PETR N SKODA D A 2010Cardiovase Electrophysiol2010,21,:1
6Implementing the multilayer retinal model on the complex-cell CNN-UM chip prototype显示文摘Bálya D Petrás I Roska T 2004International Journal of Bifurcation and Chaos2004,14,2:1
7Revisiting the total contact cast:maximizing off-loading by wound isolation显示文摘Petre M Tokar P Kostar D 0,,04:1
8Thermal denaturation of whey protein in mixtures with caseins studied by differential scanning calorimetry显示文摘MARIE P PETR D 1990J Dairy Sci1990,73,:1
9Pharmacological activities of natural triterpenoids and their therapeutic implications显示文摘PETR D MARIAN H DAVID V 2006J Nat Prod2006,23,3:1
10Double-dose versus standard-dose clopidogrel and high-dose versus low-dose aspirin in individuals undergoing percutaneous coronary intervention for acute coronary syndromes (CURRENT-OASIS 7): a randomised factorial trial显示文摘Shamir R Mehta Jean-Francois Tanguay John W Eikelboom Sanjit S Jolly Campbell D Joyner Christopher B Granger David P Faxon Hans-Jurgen Rupprecht Andrzej Budaj Alvaro Avezum Petr Widimsky Philippe Gabriel Steg Jean-Pierre Bassand Gilles Montalescot Carlos 2010The Lancet2010,,9748:1
11Double-dose versus standard-dose clopidogrel and high-dose versus low-dose aspirin in individuals undergoing percutaneous coronary intervention for acute coronary syndromes (CURRENT-OASIS 7): a randomised factorial trial显示文摘Shamir R Mehta Jean-Francois Tanguay John W Eikelboom Sanjit S Jolly Campbell D Joyner Christopher B Granger David P Faxon Hans-Jurgen Rupprecht Andrzej Budaj Alvaro Avezum Petr Widimsky Philippe Gabriel Steg Jean-Pierre Bassand Gilles Montalescot Carlos 2010The Lancet2010,,9748:1
12Variceal bleeding in portal hypertension: bacterial infection and comparison of efficacy of intravenous and per-oral application of antibiotics – a randomized trial显示文摘Jan Lata Jana Juránková Libu?e Husová Michal ?enky?ík Petr Dítě Milan Dastych Veronika P?íbramská Radek Kroupa 2005European Journal of Gastroenterology & Hepatology2005,,10:1
13New approach to common removal of dioxins and NOx as a contribution to environmentalprotection显示文摘RADEK D PETR C DAVID J 2010Journal of Cleaner Production2010,18,:1
14Topologically Controlled Segmentation of 3D Magnetic Resonance Images of the Head by Using Morphological Operators显示文摘Petr D Isabelle B Michel C 2003Pattern Recognition2003,36,10:1
15How Do Grass Species,Sea-son and Ensiling Influence Mycotoxin Content in Forage显示文摘Jiri S Vojtech A Petr D 2013International Journal of Environmental Research and PublicHealth2013,10,11:1
16Growth and characterization of PhS deposited on ferroelectric ceramics 显示文摘P1NTILIE I PENTIA E PINTILIE L PETRE D CONSTANTIN C BOTILA T 1995Journal of Applied Physics1995,78,:1
17Chelerythrine and dihydrochelerythrine induce G1 phase arrest and bimodal cell death in human leukemia HE-60 cells 显示文摘Jiri V Petr D Jaroslav V 2008Toxicology in Vitro2008,22,4:1
18The prognostic significance of CA125 in patients with non-Hodgkin's lymphoma显示文摘Zacharos I D Efstathiou S P Petreli E 2002Eur J Haematol2002,69,4:1
19Revisiting the total contact cast:maximizing off-loading by wound isolation显示文摘Petre M Tokar P Kostar D 2005Diabetes Care2005,28,:1
20Extended range of applications for laser beam welding by laser-MIG hybrid technique显示文摘Petring D Kaierle S Kasimir M 0,,01:1
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