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82篇 您的检索式:作者名="IOANNIS D"
    题名 作者 年代 出处 被引量
1Portopulmonary hypertension and serum endothelin levels in hospitalized patients with cirrhosis显示文摘BACKGROUND:Cirrhosis is associated with several extrahepatic manifestations including portopulmonary hypertension (PPHT).Recent data suggest that endothelins (ETs) are related to the pathophysiology of PPHT.The study aimed to measure serum ET levels in hospitalized cirrhotic patients and to determine their association with PPHT and patient outcome.METHODS:Fifty-seven cirrhotic patients [43 males;median age 58 (28-87) years] underwent Doppler echocardiography.Patients with systolic pulmonary arterial pressure ≥40 mmHg and pulmonary acceleration time <100 ms were deemed to have PPHT.ET-1,2,and 3 serum levels were measured with an ELISA assay.All-cause mortality was recorded over a median period of 24 months.RESULTS:Nine out of 57 patients (15.8%) had PPHT.Among various clinical variables,only autoimmune hepatitis was associated with PPHT (OR=11.5;95% CI,1.58-83.4;P=0.01).ET-1 levels [9.1 (1.6-20.7) vs 2.5 (1.4-9.2) pg/mL,P=0.02] and the ET-1/ET-3 ratio [4.73 (0.9-22.4) vs 1.6 (0.3-10.7),P=0.02] were significantly higher in patients with PPHT than in those without.ET-2 and ET-3 levels did not differ between the two groups.There was no difference in survival between the two groups,although ET-1 levels were associated with an adverse outcome in Cox regression analysis (HR=1.11;95% CI,1.02-1.22;P=0.02 per unit increase in ET-1).CONCLUSION:Our data suggest that ET-1 and the ET-1/ET-3 ratio are elevated in patients with PPHT and that ET-1 is associated with a poor outcome irrespective of PPHT.Aristotelis Tsiakalos Gregorios Hatzis Ioannis Moyssakis Aggelos Karatzaferis Panayiotis D Ziakas George E Tzelepis 2011Hepatobiliary & Pancreatic Diseases International2011,10,4:7
2Two cameras detect more lesions in the small-bowel than one显示文摘AIM:To explore the feasibility of dual camera capsule (DCC)small-bowel(SB)imaging and to examine if two cameras complement each other to detect more SB lesions.METHODS:Forty-one eligible,consecutive patients underwent DCC SB imaging.Two experienced investigators examined the videos and compared the total number of detected lesions to the number of lesions detected by each camera separately.Examination tolerability was assessed using a questionnaire.RESULTS:One patient was excluded.DCC cameras detected 68 positive findings(POS)in 20(50%)cases.Fifty of them were detected by the'yellow'camera,48 by the'green'and 28 by both cameras;44%(n=22)of the'yellow'camera’s POS were not detected by the'green'camera and 42%(n=20)of the'green' camera’s POS were not detected by the'yellow'camera.In two cases,only one camera detected significant findings.All participants had 216 findings of unknown significance(FUS).The'yellow','green'and both cameras detected 171,161,and 116 FUS,respectively;32%(n=55)of the'yellow'camera’s FUS were not detected by the'green'camera and 28%(n=45)of the'green'camera’s FUS were not detected by the 'yellow'camera.There were no complications related to the examination,and 97.6%of the patients would repeat the examination,if necessary.CONCLUSION:DCC SB examination is feasible and well tolerated.The two cameras complement each other to detect more SB lesions.Konstantinos Triantafyllou Ioannis S Papanikolaou Kostis Papaxoinis Spiros D Ladas 2011World Journal of Gastroenterology2011,17,11:5
3Improved bowel preparation increases polyp detection and unmasks significant polyp miss rate显示文摘AIM: To retrospectively compare previous-day vs splitdose preparation in terms of bowel cleanliness and polyp detection in patients referred for polypectomy. METHODS: Fifty patients underwent two colonoscopies: one diagnostic in a private clinic and a second for polypectomy in a University Hospital. The latter procedures were performed within 12 wk of the index ones. Examinations were accomplished by two experienced endoscopists, different in each facility. Twenty-seven patients underwent screening/surveillance colonoscopy, while the rest were symptomatic. Previous day bowel preparation was utilized initially and splitdose for polypectomy. Colon cleansing was evaluated using the Aronchick scale. We measured the number of detected polyps, and the polyp miss rates per-polyp.RESULTS: Excellent/good preparation was reported in 38 cases with previous-day preparation(76%) vs 46 with split-dose(92%), respectively(P = 0.03). One hundred and twenty-six polyps were detected initially and 169 subsequently(P < 0.0001); 88 vs 126 polyps were diminutive(P < 0.0001), 25 vs 29 small(P = 0.048) and 13 vs 14 equal or larger than 10 mm. The miss rates for total, diminutive, small and large polyps were 25.4%, 30.1%, 13.7% and 6.6%, respectively. Multivariate analysis revealed that split-dose preparation was significantly associated(OR, P) with increased number of polyps detected overall(0.869, P < 0.001), in the right(0.418, P = 0.008) and in the left colon(0.452, P = 0.02). CONCLUSION: Split-dose preparation improved colon cleansing, enhanced polyp detection and unmasked significant polyp miss rates.Ioannis S Papanikolaou Athanasios D Sioulas Nektarios Magdalinos Iosif Beintaris Lazaros-Dimitrios Lazaridis Dimitrios Polymeros Chrysoula Malli George D Dimitriadis Konstantinos Triantafyllou 2015World Journal of Clinical Cases2015,3,10:4
4Restless legs syndrome is contributing to fatigue and low quality of life levels in hemodialysis patients显示文摘AIM To examine whether hemodialysis(HD) patients with restless legs syndrome(RLS) are subjects of greater fatigue and impaired quality of life(QoL) compared to HD patients without RLS.METHODS Eighty five stable HD patients participated in this study. According to their RLS status, the patients were dividedinto the RLS group(n = 23) and the non-RLS group(n = 62). QoL, fatigue, sleep quality, daily sleepiness and depression symptoms were assessed by using various questionnaires. Finally, biochemical parameters including iron, ferritin, hemoglobin, hematocrit and parathormone were assessed. RESULTS The HD patients with RLS scored worse in all the questionnaires used in the study(P < 0.05). The patients with RLS were more likely to receive the HD therapy on the morning shift, whilst 43.5% of the RLS patients reported to experience the RLS symptoms also during HD. The severity of RLS was correlated with fatigue, depression score and sleep quality(P < 0.05). CONCLUSION HD patients with RLS are subject to lower QoL related parameters and greater fatigue compared to HD patients without RLS. RLS should be successfully managed in order to improve the QoL of the sufferers.Christoforos D Giannaki Michael Hadjigavriel Akis Lazarou Aristos Michael Loukas Damianou Efthimios Atmatzidis Ioannis Stefanidis Georgios M Hadjigeorgiou Giorgos K Sakkas Marios Pantzaris 2017World Journal of Nephrology2017,6,5:3
5Lymphoepithelial cysts and cystic lymphangiomas: Underrecognized benign cystic lesions of the pancreas显示文摘AIM: To identify their diagnostic and prognostic clinical characteristics in a large series.METHODS: Retrospective review of clinicopathologic and imaging characteristics of patients diagnosed with lymphoepithelial cysts and cystic lymphangiomas of the pancreas at Massachusetts General Hospital.RESULTS: Twelve patients were identified between 1/1/1997 and 8/1/2007. Their median age was 55.5 years(range 19-78 years), and 6 were females. The le-sion was incidentally discovered in half of the patients.Contrast enhanced computed tomography demonstrat-ed that the cysts had thin walls, without calcifications, pancreatic duct dilation or pancreatic parenchyma inva-sion. Endoscopic ultrasound with fine needle aspiration(EUS/FNA) confirmed the diagnosis of a lymphoepithe-lial cyst in 3 patients, one of whom was spared an op-eration and continues to do well after 6 years. Eleven patients had a resection: 3 pancreaticoduodenecto-mies, 7 distal pancreatectomies, and 1 enucleation. The median size of the cysts was 3 cm(range 2-20 cm). At a median follow-up of 57 mo no recurrences or other pancreas-related conditions occurred.CONCLUSION: Lymphoepithelial cysts and cystic lymphangiomas of the pancreas can be diagnosed with a combination of contrast-enhanced computed tomog-raphy scans and EUS/FNA. If the lesion is asymptom-atic, an operation might be avoided.Ioannis T Konstantinidis Avinash Kambadakone Onofrio A Catalano Dushyant V Sahani Vikram Deshpe David G Forcione Jennifer A Wargo Carlos Fernandez-del Castillo Keith D Lillemoe Andrew L Warshaw Cristina R Ferrone 2014World Journal of Gastrointestinal Surgery2014,6,7:2
6Use of intercostal nerves for different target neurotization in brachial plexus reconstruction显示文摘Intercostal nerve transfer is a valuable procedure in devastating plexopathies. Intercostal nerves are a very good choice for elbow flexion or extension and shoulder abduction when the intraplexus donor nerves are not available. The best results are obtained in obstetric brachial plexus palsy patients, when direct nerve transfer is performed within six months from the injury. Unlike the adult posttraumatic patients after median and ulnar nerve neurotization with intercostal nerves, almost all obstetric brachial plexus palsy patients achieve protective sensation in the hand and some of them achieve active wrist and finger flexion. Use in combination with proper muscles, intercostal nerve transfer can yield adequate power to the paretic upper limb. Reinnervation of native muscles(i.e., latissimus dorsi) should always be sought as they can successfully be transferred later on for further functional restoration.Marios G Lykissas Ioannis P Kostas-Agnantis Ananstasios V Korompilias Marios D Vekris Alexandros E Beris 2013World Journal of Orthopedics2013,4,3:2
7Probabilistic service level guarantees in make-to-stock manufactur ing systems 显示文摘Bertsimas D Paschalidis Ioannis I C 2001Operations Research2001,49,1:1
8Hypoxic acclimation prevents avocado mesocarp injury caused by subsequent exposure to extreme low oxygen atmospheres显示文摘El-Mir M Gerasopoulos D Ioannis Metzidakis I 2001Postharvest Biology and Technology2001,23,3:1
9Design study of a stand-alone desalina- tion system powered by renewable energy sources and a pumped storage unit 显示文摘Ioannis D Spyrou 2010Desalination2010,257,:1
10Spontaneous perirenal hemorrhage: A 10-year experience at our institution显示文摘GEORGE D I OANNIS K IOANNIS H 2004International Urology and Nephrolagy2004,36,:1
11Stress tolerance of fivewillow clones after irrigation with different amounts of landfillleachate显示文摘IOANNIS D PAR A MARTIN W 2006Bioresource Technology2006,97,1:1
12Dermatomyositis as an early manifesta- tion and a significant clinical precursor of lung cancer:report of a rare case and review of the current literature显示文摘Nikolaos T Maria T Ioannis K D 2013Int J Clin Exp Med2013,6,2:1
13A'probabilistic algorithm for efficient and robust data propagation in wireless sensor networks显示文摘Ioannis C Tassos D Sotiris N 2006Ad Hoc Networks2006,4,5:1
14Adult bone marrow-derived stem cells and the injured heart :just the beginning? 显示文摘Ioannis D Nagy AH Myrtle YA 2005Euro J Cardio-thoracic Surg2005,28,:1
15Effect of nonionic surfactants on the solubilization of alachlor显示文摘IOANNIS X DANAE D 2006Journal of Hazardous Materials2006,,136:1
16A validated high-performance liquid chromatographic method for the determination of glibenclamide in human plasma and its application to pharmacokinetic studies显示文摘IOANNIS N ATHANASIOS C D 2002Pharm Biomed Anal2002,28,:1
17A grid middleware for data management exploiting peer-to-peer techniques显示文摘ATHANASIA A KATERINA D IOANNIS K 2009Future Generation Computer Systems2009,25,:1
18Simulation of the electroimpulse de-icing process of aircraft wings显示文摘George N L Ioannis D D Milan M S 2006Jour- nal of Aircraft2006,48,6:1
19License Plate Recognition From Still Images and Video Sequences: A Survey显示文摘Christos-Nikolaos Ioannis Ioannis D Psoroulas 2008IEEE Transactions on Intelli- gent Transportation Systems2008,9,3:1
20Asynchronous machine rotor fault diagnosis technique using complex wavelets显示文摘Ioannis P Tsoumas George Georgoulas Epaminondas D Mitronikas 2008IEEE Transactions on Energy Conversion2008,23,2:1
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