101
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Schwarz J, Arnold G, Csoti I, Fogel W, Oechsner M, Urban P, Walter U, Storch A. Progressive supranukleäre Paralyse (PSP). AKTUELLE NEUROLOGIE 2007. [DOI: 10.1055/s-2007-970931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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102
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Müller-Forell W, Urban P. [Isolated cortical vein thrombosis. Clinical and neuroradiological aspects]. Radiologe 2007; 47:255-61. [PMID: 16235092 DOI: 10.1007/s00117-005-1281-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Isolated cortical vein thrombosis is only rarely diagnosed, although it presents with typical signs on imaging, presented in the paper. We report on five patients with this diagnosis, who all presented with focal sensomotoric seizures. Imaging with CT and MRI was the leading method. All patients were treated with oral anticoagulation and showed full recovery.
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103
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Nguyen-Huu B, Nguyen-Huu B, Birklein F, Haegele-Link S, Stoeter P, Dieterich M, Urban P. Beneficial effect of plasmapheresis but not on IVIG in Bickerstaff’s brainstem encephalitis. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2006.11.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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104
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Gawehn J, Vucurevic G, Dellani P, Urban P, Stoeter P. Delayed feedback of somato-motor cortex activations modulates finger tapping results in real-time functional MR imaging. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2006.11.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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105
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Urban P. Pregabalin as add-on treatment to botulinum toxin in idiopathic hemifacial spasm. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2006.11.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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106
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Eicke M, Eicke M, Aschenbach C, Büscher C, Nguyen-Huu B, Urban P, Nedelmann M. Internal carotid artery steal syndrome: A case report. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2006.11.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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107
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Urban P, Zahn M, Schranz S, Rolke R, Glassl O, Pittermann P. Effects of age, gender, bolus volume and bolus consistency on swallowing parameters and on temporal coordination of breathing and swallowing in normal adults. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2006.11.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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108
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Taly V, Urban P, Truan G, Pompon D. A combinatorial approach to substrate discrimination in the P450 CYP1A subfamily. Biochim Biophys Acta Gen Subj 2007; 1770:446-57. [PMID: 16996693 DOI: 10.1016/j.bbagen.2006.08.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2006] [Revised: 07/22/2006] [Accepted: 08/08/2006] [Indexed: 11/21/2022]
Abstract
A comparison of all known mammalian CYP1A sequences identifies nineteen sequence regions that are conserved within all 1A1s or within all 1A2s but at the same time systematically differ between any 1A1 and any 1A2. The purpose of this study was to explore links between these specific CYP1A sequence signatures and substrate specificity shift through the kinetic analysis of combinatorial variants of increasing complexity. The less complex variants correspond to multiple mutations within a short segment of their sequence. The more complex variants correspond to mosaic P450s recombining 1A1 and 1A2 sequences (up to 5 crossovers per sequence). Fifty-eight such functional CYP1A variants and parental wild-type enzymes were expressed in yeast and assayed with 7-alkoxyresorufins and ethoxyflurorescein ethyl ester as substrates. Observed kinetic data were analyzed by multivariate statistical analyses and hierarchical clustering in order to highlight correlations and identify potential sequence-activity relationships within the three-dimensional function space investigated. Several variants are outliers in these representations and show a redistribution of their substrate specificity compared to wild-type CYP1As. Some combinations of sequence elements were identified that significantly discriminate between 1A1 and 1A2 for these three substrates. The comparison of this combinatorial approach with previous results of site-directed mutagenesis is discussed.
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109
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Urban P, Pelclová D, Lukás E, Kupka K, Preiss J, Fenclová Z, Smerhovský Z. Neurological and neurophysiological examinations on workers with chronic poisoning by 2,3,7,8-TCDD: follow-up 35 years after exposure. Eur J Neurol 2006; 14:213-8. [PMID: 17250732 DOI: 10.1111/j.1468-1331.2006.01618.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Between 1965 and 1968, about 350 workers were accidentally exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in a chemical plant, which was producing herbicides based on the trichlorophenoxyacetic acid. About 80 workers developed signs of poisoning. The estimated mean concentration of TCDD at the time of exposure was about 5000 pg/g of plasma fat. Only 15 subjects from the original cohort remained available for the recent follow-up in 2004. All were men, mean age 60 years. The mean current TCDD plasma concentration was 128 pg/g. Neurological examination revealed some CNS impairment in eight subjects. Signs of polyneuropathy were found in nine subjects, confirmed by NCV studies in three cases. Electroencephalography was abnormal in three cases; Visual-evoked potential in five cases. Acquired dyschromatopsia was detected in six patients. SPECT showed focal reduction of perfusion in various brain locations in all but one patient. Two neuropsychological variables and the frequency of abnormal neurophysiological tests in individual patients correlated with TCDD plasma level. The findings support the hypothesis that TCDD can damage the nervous system. In addition to a direct neurotoxic effect of TCDD, changes secondary to vasculopathy should be considered, in the pathophysiology of the damage, because of the high frequency of lipid metabolism disorders and their complications.
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110
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Urban P, Vuaroqueaux V, Labuhn M, Delorenzi M, Wirapati P, Dieterich H, Ehret S, Fürstenberger G, Morant R, Eppenberger U, Eppenberger-Castori S. Different prediction of distant recurrence risk in primary breast cancer patients stratified by ER and ERBB2 status. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.20120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
20120 Background: Molecular profiling recently defined biological characteristics of several long-recognized breast cancer subtypes including ER-positive (luminal subtype), ER-negative/ERBB2-positive (ERBB2 subtype) and ER-negative/ErBB2-negative (basal-like subtype). Each of these particular subtypes has different impact on patient outcome and should be therefore taken in consideration for individual scoring calculations. Methods: The quantitative RNA expression levels of 70 relevant genes were simultaneously determined in fresh frozen samples of 317 primary breast cancer (BC) patients comprehending ER-positive (70%), ER-negative/ERBB2-positive (15%) and ERBB2-negative/ER-negative (15%) and with known follow-up data. Five years distant recurrence scoring systems were calculated by means of Cox-hazard regression models. Results: Two main prognostic scoring systems were developed: one based on genes relative to proliferation representing tumor growth and its velocity, the other based on proteases. A low proliferation score identified 30% of patients at very good prognosis (probability of distant recurrence 12%, CI: 1.5–22%) all belonging to the ER-positive subcategory as compared to cases with higher proliferation (probability of distant recurrence 31%, 32–38%). The probability to develop distant recurrence within 5 years for 30% of ERBB2-positive patients was of only 12% (CI 0–25%) when accompanied by low levels of proteases as compared to the remaining ERBB2-positive patients with a probability of recurrence of 40% (CI 22–54%). Conclusions: ER, ERBB2 and the expression levels of the few identified genes involved in tumor proliferation and invasion can be easily and precisely detected by means of QRT-PCR. This robust method allows fine tuned prognosis and gives predictive information for the treatment of individual breast cancer. [Table: see text]
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Muller C, Pompon D, Urban P, Morfin R. Inter-conversion of 7alpha- and 7beta-hydroxy-dehydroepiandrosterone by the human 11beta-hydroxysteroid dehydrogenase type 1. J Steroid Biochem Mol Biol 2006; 99:215-22. [PMID: 16603347 DOI: 10.1016/j.jsbmb.2005.12.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2005] [Accepted: 12/29/2005] [Indexed: 11/16/2022]
Abstract
The dehydroepiandrosterone (DHEA) 7alpha-hydroxylation in humans takes place in the liver, skin, and brain. These organs are targets for the glucocorticoid hormones where 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) activates cortisone through its reduction into cortisol. The putative interference of 7alpha-hydroxy-DHEA with the 11beta-HSD1-catalyzed reduction of cortisone into cortisol has been confirmed in preliminary works with human liver tissue preparations of the enzyme demonstrating the transformation of 7alpha-hydroxy-DHEA into 7-oxo-DHEA and 7beta-hydroxy-DHEA. However, the large production of 7beta-hydroxy-DHEA could not be explained satisfactorily. Therefore our objective was to study the role in the metabolism of oxygenated DHEA by recombinant human 11beta-HSD1 expressed in yeast. The 7alpha- and 7beta-hydroxy-DHEA were each oxidized into 7-oxo-DHEA with quite dissimilar K(M) (70 and 9.5 microM, respectively) but at equivalent V(max). In contrast, the 11beta-HSD1-mediated reduction of 7-oxo-DHEA led to the production of both 7alpha- and 7beta-hydroxy-DHEA with equivalent K(M) (1.1 microM) but with a 7beta-hydroxy-DHEA production characterized by a significantly greater V(max). The 7alpha-hydroxy-DHEA produced by the cytochrome CYP7B1 in tissues may exert anti-glucocorticoid effects through interference with the 11beta-HSD1-mediated cortisone reduction.
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112
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Fassa AA, Urban P, Radovanovic D, Duvoisin N, Gaspoz JM, Stauffer JC, Erne P. [Temporal trends in treatment of ST segment elevation myocardial infarction in Switzerland from 1997 to 2005]. REVUE MEDICALE SUISSE 2006; 2:1393-6, 1398. [PMID: 16786955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
From 1997 to 2005, 19461 patients admitted for acute coronary syndrome in 68 hospitals in Switzerland were included in the AMIS Plus registry, of whom 11 543 showed ST segment elevation or left bundle branch block on the ECG at admission. During this period, there was an important increase in the proportion of patients treated by primary percutaneous coronary intervention (8% to 74%), and a marked reduction in the use of thrombolysis (47% to 6%) and also in the proportion of patients who did not receive any reperfusion treatment (45% to 20%). Furthermore, there was a decrease in hospital mortality (12% to 7%). Main predictors of hospital mortality were withholding PCI and thrombolysis, advanced age and the presence of cardiogenic shock. Moreover, primary PCI was associated with lower hospital mortality when compared to thrombolysis.
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113
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Urban P, Zahn M, Schranz S, Rolke R, Glassl O, Pittermann P. Effects of age, gender, bolus volume and bolus consistency on swallowing parameters and on temporal coordination of breathing and swallowing in normal adults. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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114
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Fischer G, Fischer G, Kessel G, Nguyen-Huu KB, Urban P. Unusual neurologic manifestation of compressive radiculopathy of the first thoracic root (T1). KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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115
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Urban P. Pregabalin as add-on treatment to botulinum toxin in idiopathic hemifacial spasm. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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116
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Gawehn J, Vucurevic G, Dellani P, Urban P, Stoeter P. Delayed feedback of somato-motor cortex activations modulates finger tapping results in real-time functional MR Imaging. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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117
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Eicke M, Eicke M, Aschenbach C, Büscher C, Nguyen-Huu BK, Urban P, Nedelmann M. Internal carotid artery steal syndrome: a case report. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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118
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Nguyen-Huu BK, Nguyen-Huu BK, Birklein F, Haegele-Link S, Stoeter P, Dieterich M, Urban P. Beneficial effect of plasmapheresis but not on IVIG in Bickerstaff's brainstem encephalitis. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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119
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Marx J, Iannetti G, Thömke F, Fitzek S, Urban P, Stoeter P, Cruccu G, Dieterich M, Hopf H. MRT-basiertes Hirnstamm-Mapping zur topodiagnostischen Bedeutung des Blinkreflex. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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120
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Urban P, Rolke R, Wicht S, Keilmann A, Stoeter P, Hopf H, Dieterich M. Prospektive auditive Analyse der Dysarthrophonie bei akuten singulären Infarkten unterschiedlicher Topographie. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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121
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Thömke F, Marx J, Fitzek S, Urban P, Stoeter P, Dieterich M, Hopf H. Schwindel als Teilsymptom von Hirnstamminfarkten. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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122
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Haegele S, Hertkorn C, Gawehn J, Wunsch M, Altland K, Urban P. Leptomeningeale familiäre Amyloidose: eine seltene Differentialdiagnose einer meningealen Kontrastmittelaufnahme im MRT. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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123
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Nguyen-Huu B, Urban P, Schreckenberger M, Hundsberger T, Dieterich M, Werhahn K. Antiamphiphysin positive Stiff-person syndrome associated with small cell lung cancer. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cikrt M, Urban P. Center for Occupational Health at the National Institute of Public Health. WHO Collaborating Center for Occupational Health. Cent Eur J Public Health 2005; 13:107-11. [PMID: 16218325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
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125
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Fassa AA, Urban P, Radovanovic D, Duvoisin N, Gaspoz JM, Stauffer JC, Erne P. Trends in reperfusion therapy of ST segment elevation myocardial infarction in Switzerland: six year results from a nationwide registry. Heart 2005; 91:882-8. [PMID: 15958354 PMCID: PMC1769002 DOI: 10.1136/hrt.2004.037689] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE To document the trends in reperfusion therapy for ST segment elevation myocardial infarction (STEMI) in Switzerland. DESIGN National prospective multicentre registry, AMIS Plus (acute myocardial infarction and unstable angina in Switzerland), of patients admitted with acute coronary syndromes. SETTING 54 hospitals of varying size and capability in Switzerland. PATIENTS 7098 of 11 845 AMIS Plus patients who presented with ST segment elevation or left bundle branch block on the ECG at admission. MAIN OUTCOME MEASURES In-hospital mortality and its predictors at admission by multivariate analysis. RESULTS The proportion of patients treated by primary percutaneous coronary intervention (PCI) progressively increased from 1997 to 2002, while the proportion with thrombolysis or no reperfusion decreased (from 8.0% to 43.1%, from 47.2% to 25.6%, and from 44.8% to 31.4%, respectively). Overall in-hospital mortality decreased over the study period from 12.2% to 6.7% (p < 0.001). Main in-hospital mortality predictors by multivariate analysis were primary PCI (odds ratio (OR) 0.52, 95% confidence interval (CI) 0.33 to 0.81), thrombolysis (OR 0.63, 95% CI 0.47 to 0.83), and Killip class III (OR 3.61, 95% CI 2.49 to 5.24) and class IV (OR 5.97, 95% CI 3.51 to 10.17) at admission. When adjusted for the year, multivariate analysis did not show PCI to be significantly superior to thrombolysis for in-hospital mortality (OR 1.2 for PCI better, 95% CI 0.8 to 1.9, p = 0.42). CONCLUSION Primary PCI has become the preferred mode of reperfusion for STEMI since 2002 in Switzerland, whereas use of intravenous thrombolysis has decreased from 1997 to 2002. Furthermore, there was a major reduction of in-hospital mortality over the same period.
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