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Hein E, Munthe-Fog L, Thiara AS, Fiane AE, Mollnes TE, Garred P. Heparin-coated cardiopulmonary bypass circuits selectively deplete the pattern recognition molecule ficolin-2 of the lectin complement pathway in vivo. Clin Exp Immunol 2015; 179:294-9. [PMID: 25174443 PMCID: PMC4298406 DOI: 10.1111/cei.12446] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2014] [Indexed: 12/28/2022] Open
Abstract
The complement system can be activated via the lectin pathway by the recognition molecules mannose-binding lectin (MBL) and the ficolins. Ficolin-2 exhibits binding against a broad range of ligands, including biomaterials in vitro, and low ficolin-2 levels are associated with increased risk of infections. Thus, we investigated the biocompatibility of the recognition molecules of the lectin pathway in two different types of cardiopulmonary bypass circuits. Bloods were drawn at five time-points before, during and postoperatively from 30 patients undergoing elective cardiac surgery. Patients were randomized into two groups using different coatings of cardiopulmonary bypass circuits, Phisio® (phosphorylcholine polymer coating) and Bioline® (albumin-heparin coating). Concentrations of MBL, ficolin-1, -2 and -3 and soluble C3a and terminal complement complex (TCC) in plasma samples were measured. Ficolin-3-mediated complement activation potential was evaluated with C4, C3 and TCC as output. There was no significant difference between the two circuit materials regarding MBL, ficolin-1 and -3. In the Bioline® group the ficolin-2 levels decreased significantly after initiation of surgery (P < 0.0001) and remained reduced throughout the sampling period. This was not seen for Phisio®-coated circuits. Ficolin-3-mediated complement activation potential was reduced significantly in both groups after start of operation (P < 0.0001), whereas soluble C3a and TCC in the samples were increased (P < 0.0001). Ficolin-2 was depleted from plasma during cardiac surgery when using heparin-coated bypass circuits and did not reach baseline level 24 h postoperation. These findings may have implications for the postoperative susceptibility to infections in patients undergoing extracorporeal circulation procedures.
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Affiliation(s)
- E Hein
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Rigshospitalet, Faculty of Health Sciences, University of CopenhagenCopenhagen, Norway
| | - L Munthe-Fog
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Rigshospitalet, Faculty of Health Sciences, University of CopenhagenCopenhagen, Norway
| | - A S Thiara
- Department of Cardiothoracic Surgery, Oslo University HospitalOslo, Norway
| | - A E Fiane
- Department of Cardiothoracic Surgery, Oslo University HospitalOslo, Norway
- Centre of Molecular Inflammation Research, Norwegian University of Science and TechnologyTrondheim, Norway
| | - T E Mollnes
- Department of Immunology, Oslo University Hospital Rikshospitalet, K.G.Jebsen IRC, University of OsloOslo, Norway
- Centre of Molecular Inflammation Research, Norwegian University of Science and TechnologyTrondheim, Norway
- Research Laboratory, Nordland Hospital, Bodø, and Faculty of Health Sciences, K.G. Jebsen TREC, University of TromsøTromsø, Norway
| | - P Garred
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Rigshospitalet, Faculty of Health Sciences, University of CopenhagenCopenhagen, Norway
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Jenei ZM, Zima E, Csuka D, Munthe-Fog L, Hein E, Széplaki G, Becker D, Karádi I, Prohászka Z, Garred P, Merkely B. Complement activation and its prognostic role in post-cardiac arrest patients. Scand J Immunol 2014; 79:404-9. [PMID: 24612379 DOI: 10.1111/sji.12167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/23/2014] [Indexed: 12/23/2022]
Abstract
Cardiac arrest causes generalized ischaemia/hypoxia, and subsequent resuscitation inflicts reperfusion injury, the pathology of which is not fully understood. Moreover, predicting the prognosis of comatose, post-cardiac arrest patients is a complex clinical challenge. We hypothesized that the extent of complement activation might be a reliable predictor of mortality in this population. Forty-six comatose cardiac arrest patients were enrolled into our prospective cohort study, conducted in a tertiary care university clinic. All subjects were cooled to 32-34 °C body temperature for 24 h and then allowed to rewarm to normothermia. All patients underwent diagnostic coronary angiography. On admission, at 6 and 24 h, blood samples were taken from the arterial catheter. In these, complement products (C3a, C3, C4d, C4, SC5b9 and Bb) were measured by ELISA in blood samples. Patients were followed up for 30 days; 22 patients (47.8%) died by the end of this period. We observed that complement activation (determined as the C3a to C3 ratio) was higher in non-survivors than in survivors at each time point. In the multivariate Cox regression analysis, the C3a/C3 ratio determined 24 h after the initiation of therapeutic hypothermia predicted 30-day mortality regardless of age, sex and the APACHE II score. Complement activation occurs in post-cardiac arrest patients, and its extent correlates with 30-day survival. The C3a/C3 ratio might prove useful for estimating the prognosis of comatose post-cardiac arrest patients.
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Affiliation(s)
- Z M Jenei
- 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary
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Zangari R, Munthe-Fog L, Zanier E, Hein E, Zoerle T, Orsini F, Parrella S, Conte V, Stocchetti N, Garred P, De Simoni MG. Ficolin-3 mediated lectin complement pathway activation is related to pathology and outcome in subarachnoid haemorrhage patients. Mol Immunol 2013. [DOI: 10.1016/j.molimm.2013.05.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Csuka D, Munthe-Fog L, Hein E, Zotter Z, Varga L, Prohászka Z, Farkas H, Garred P. Activation of the ficolin-lectin pathway during attacks of hereditary angioedema. Mol Immunol 2013. [DOI: 10.1016/j.molimm.2013.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hein E, Nielsen C, Munthe-Fog L, Jacobsen S, Garred P. Ficolin-3 mediated complement activation in patients with systemic lupus erythematosus. Mol Immunol 2013. [DOI: 10.1016/j.molimm.2013.05.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hein E, Hollingworth A, Moore CM. The influence of visual working memory on correspondence in the Ternus display. J Vis 2013. [DOI: 10.1167/13.9.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hein E, Cavanagh P. Features bias correspondence in apparent motion over short distances in the Ternus display but long distances in split motion. J Vis 2012. [DOI: 10.1167/12.9.1230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hein E, Cavanagh P. Correspondence in apparent motion: Features don't like to travel far. J Vis 2011. [DOI: 10.1167/11.11.1101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Moore CM, Stephens T, Hein E. Disrupting surface features disrupts established object representations. J Vis 2010. [DOI: 10.1167/9.8.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hein E, Moore C. The role of mid-level representations in resolving object correspondence. J Vis 2010. [DOI: 10.1167/10.7.1172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hein E, Moore CM, Palmer J. Perceptual structure facilitates spatial filtering. J Vis 2010. [DOI: 10.1167/8.6.1022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Meyer H, Hein E, Hamm B, Rogalla P. softMip zur besseren Detektion von Harnwegskonkrementen in der Ultra-Low-Dose-CT. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-976971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Klingebiel R, Masuhr F, Rogalla P, Hein E, Juran R, Bauknecht HC, Bohner G. [Multislice computed tomographic myelography]. Nervenarzt 2006; 77:231-8, 241; quiz 242-3. [PMID: 16283150 DOI: 10.1007/s00115-005-2011-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
While magnetic resonance imaging (MRI) is the first line modality in depicting intramedullary spinal lesions, computed tomographic (CT) myelography has gained renewed attention due to the introduction of multislice scanning (MS-CT). Compared with conventional CT, MS-CT permits rapid, high-resolution imaging of various spinal pathologies with extended scan length. Although soft tissue contrast is inferior to that with MRI, MS-CT myelography performs best in detailed assessment of osseous pathologies, 3D imaging of orthopedic and anesthesiologic implants, and showing dural leakage and causes of CSF circulation impairment. Whenever MRI is not available or contraindicated, MS-CT myelography is the method of choice for evaluating spinal lesions.
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Affiliation(s)
- R Klingebiel
- Abt. Neuroradiologie, Institut für Radiologie, Charité, Campus Mitte, Universitätsmedizin Berlin.
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Rogalla P, Hein E, Hein P, Romano VC, Krug L, Hamm B. 2D- versus 3D-Befundung von CT-Kolographien zur Detektion von kolorektalen Polypen und Karzinomen. ROFO-FORTSCHR RONTG 2006. [DOI: 10.1055/s-2006-940908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Franiel T, Diederichs G, Engelken F, Elgeti T, Hein E, Hamm B, Rogalla P. Stellenwert von CT-Dünnschichten der Multidetektor-CT bei der Detektion einer Peritonealkarzinose. ROFO-FORTSCHR RONTG 2006. [DOI: 10.1055/s-2006-940943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kluner C, Hein P, Hein E, Gralla O, Hamm B, Rogalla P. Genügt eine CT mit der Strahlenexposition einer Abdomenübersicht zur Diagnostik von Nieren- und Harnleitersteinen? ROFO-FORTSCHR RONTG 2005. [DOI: 10.1055/s-2005-867523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ortner MAEJ, Ebert B, Hein E, Zumbusch K, Nolte D, Sukowski U, Weber-Eibel J, Fleige B, Dietel M, Stolte M, Oberhuber G, Porschen R, Klump B, Hörtnagl H, Lochs H, Rinneberg H. Time gated fluorescence spectroscopy in Barrett's oesophagus. Gut 2003; 52:28-33. [PMID: 12477755 PMCID: PMC1773497 DOI: 10.1136/gut.52.1.28] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS Specialised intestinal metaplasia and its dysplastic transformation, which precedes cancer in Barrett's oesophagus cannot be differentiated in standard gastroscopy. The aim of this study was to investigate whether laser induced protoporphyrin IX fluorescence permits the detection of specialised intestinal metaplasia and dysplasia during endoscopy and to take biopsy specimens in a guided rather than random manner. METHODS In 53 patients with Barrett's oesophagus 5-aminolaevulinic acid was sprayed on the mucosa. Approximately 60 to 120 minutes later, biopsy specimens were taken based on point-like measurements of delayed fluorescence intensity ratios of protoporphyrin IX in vivo. Two independent pathologists examined the 596 biopsy specimens taken, 168 of which were selected to be investigated by a third pathologist. Among these specimens only those (n=141) with a consensus diagnosis by at least two pathologists and p53 expression as additional marker were included in the analysis. RESULTS The median of normalised fluorescence intensity (ratio of delayed PpIX fluorescence intensity to immediate autofluorescence intensity) in non-dysplastic specialised intestinal metaplasia (0.51, 68% CI 0.09 to 1.92) and low grade dysplasia (1.89, 68% CI 0.55 to 3.92) differed significantly (p<0.005). Dysplasia was detected at a rate 2.8-fold higher compared with screening endoscopy despite taking fewer specimens. In addition, three early cancers were detected for the first time. Moreover, this method permitted differentiation of specialised intestinal metaplasia from junctional or gastric-fundic type epithelium (p<0.013). CONCLUSIONS For the first time it was possible to differentiate low grade dysplasia from non-dysplastic Barrett's mucosa during endoscopy based on delayed laser induced fluorescence endoscopy of PpIX. Furthermore, the method helps to detect specialised intestinal metaplasia in short Barrett's oesophagus.
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Affiliation(s)
- M-A E J Ortner
- 4th Medical Department, Charité University Hospital, Humboldt University, Berlin, Germany.
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Abstract
We present a stochastic algorithm that computes threshold circuits designed to discriminate between two classes of computed tomography (CT) images. The algorithm employs a partition of training examples into several classes according to the average grey scale value of images. For each class, a sub-circuit is computed, where the first layer of the sub-circuit is calculated by a new combination of the Perceptron algorithm with a special type of simulated annealing. The algorithm is evaluated for the case of liver tissue classification. A depth-five threshold circuit (with pre-processing: depth-seven) is calculated from 400 positive (abnormal findings) and 400 negative (normal liver tissue) examples. The examples are of size n=14,161 (119 x 119) with an 8 bit grey scale. On test sets of 100 positive and 100 negative examples (all different from the learning set) we obtain a correct classification close to 99%. The total sequential run-time to compute a depth-five circuit is about 75h up to 230h on a SUN Ultra 5/360 workstation, depending on the width of the threshold circuit at depth-three. In our computational experiments, the depth-five circuits were calculated from three simultaneous runs for depth-four circuits. The classification of a single image is performed within a few seconds.
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Affiliation(s)
- A Albrecht
- Department of Computer Science and Engineering, CUHK, Shatin, NT, Hong Kong
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Hein E, Rogalla P, Hentschel C, Taupitz M, Hamm B. Dynamic and quantitative assessment of tracheomalacia by electron beam tomography: correlation with clinical symptoms and bronchoscopy. J Comput Assist Tomogr 2000; 24:247-52. [PMID: 10752886 DOI: 10.1097/00004728-200003000-00011] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the performance of electron beam tomography (EBT) in the dynamic and quantitative assessment of tracheal collapse in tracheomalacia. METHOD Eight patients with suspected tracheomalacia were evaluated by EBT, and the results were correlated with both clinical symptoms and bronchoscopy. To validate this technique, an EBT phantom study preceded the patients' examination. A dynamic imaging sequence consisting of 20 50-ms scans obtained at 0.5 s intervals during a 10 s period was performed while the patient followed an instructed breathing maneuver. RESULTS Good correlation between EBT data and clinical symptoms was found in all patients. In comparison to bronchoscopic findings, EBT results correlated well in three, showed limited correlation in three patients, and no correlation in one case. CONCLUSION EBT with its short scanning time may be regarded as an accurate noninvasive method to dynamically evaluate tracheomalacia.
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Affiliation(s)
- E Hein
- Department of Radiology, Charité Hospital, Humboldt-Universität zu Berlin, Germany
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Andreassen UK, Hein E. [Attitudes of Danish physicians to consumer charges in the health care system]. Ugeskr Laeger 1993; 155:219-23. [PMID: 8430467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Consumer charges in connection with visits to a doctor are common in a number of countries often used for comparison but are not employed in Denmark. The Danish Medical Association is opposed to consumer charges in health care and a test sample out of 1,000 of the Medical Association chosen at random showed a definite majority opposed to consumer charges. A minority of the profession was in favour of a nominal fee of less than 70 Danish crowns (approximately 7 pounds) for visits to a doctor while scarcely 4% considered that the fee should be more than 100 Danish crowns (approximately 10 pounds). 40% of the participants considered that the consumer charge would have to exceed 100 Danish crowns before it was of any consequences for the health of the patient. In addition, this study revealed that female doctors were more opposed to consumer charges than their male colleagues. At present, more women than men commence the medical curriculum in Denmark and it must therefore be anticipated that the percentage of women in the Danish Medical Association will soon exceed the present 30%. The resistance os the Danish Medical Association to consumer charges in health care will, therefore, probably be retained.
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Andreassen UK, Hein E. [Attitude of Danish physicians to the health care services]. Ugeskr Laeger 1993; 155:223-6. [PMID: 8430468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In recent years, Danish society has focused on the service and the information available for patients in health care. A test sample out of 1,000 members of the Danish Medical Association selected at random revealed that the majority had positive attitudes to service and information in health care. The study also indicated that doctors do not consider that any particular dress code is particularly appropriate but consider that personal appearance and the way patients are addressed are individual matters. This individualistic attitude which is consistent with Mintzberg's sociological structural theory does not invariably seem appropriate.
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Gadsbøll N, Høilund-Carlsen PF, Nielsen GG, Berning J, Brunn NE, Stage P, Hein E, Marving J, Løngborg-Jensen H, Jensen BH. Symptoms and signs of heart failure in patients with myocardial infarction: reproducibility and relationship to chest X-ray, radionuclide ventriculography and right heart catheterization. Eur Heart J 1989; 10:1017-28. [PMID: 2591393 DOI: 10.1093/oxfordjournals.eurheartj.a059414] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
102 patients with myocardial infarction (MI) were examined by three clinicians, who independently recorded the following symptoms and signs: dyspnoea, a displaced apex beat, S3-gallop, rales, neck vein distension, hepatomegaly, and dependent oedema. Chest X-ray, radionuclide ventriculography, and (in 40 patients) right heart catheterization were carried out immediately after the physical examination. The clinicians frequently disagreed as to the presence of physical signs of heart failure in individuals. Moreover, these signs were of limited value in identifying patients with pulmonary vascular congestion on chest X-ray, reduced left or right radionuclide ventricular ejection fractions, enlarged ventricular volumes or haemodynamic evidence of ventricular dysfunction. We conclude that clinicians frequently disagree in the recognition of physical signs of heart failure, and that these signs have an unpredictable relationship to radiographic, radionuclide and haemodynamic measures of ventricular performance in patients with MI. Nevertheless, physical signs are useful in identifying patients with high risk of cardiac death.
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Affiliation(s)
- N Gadsbøll
- Department of Cardiology, Glostrup Hospital, University of Copenhagen, Denmark
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Gadsbøll N, Høilund-Carlsen PF, Nielsen GG, Berning J, Bruun NE, Stage P, Hein E. Interobserver agreement and accuracy of bedside estimation of right and left ventricular ejection fraction in acute myocardial infarction. Am J Cardiol 1989; 63:1301-7. [PMID: 2729103 DOI: 10.1016/0002-9149(89)91039-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ninety-eight patients with acute myocardial infarction were examined by 3 clinicians who, independently of each other, gave an estimate of left ventricular (LV) and right ventricular (RV) ejection fraction (EF) in each patient. Their estimates were based on physical examination, chest x-ray, electrocardiogram, patient history and clinical course during admission. Ejection fractions were estimated as belonging to 1 of 4 categories: normal (LVEF greater than or equal to 0.53, RVEF greater than or equal to 0.57), mildly reduced (LVEF 0.40 to 0.52, RVEF 0.45 to 0.56), moderately reduced (LVEF 0.30 to 0.39, RVEF 0.35 to 0.44) or severely reduced (LVEF less than 0.30, RVEF less than 0.35). Radionuclide ventriculography was carried out immediately after the physical examination. LVEF was correctly estimated in 43% of all examinations, deviated from radionuclide LVEF by 1 LVEF category in 45% and by 2 LVEF categories in 12%. The 3 clinicians agreed on estimated LVEF in only 32% of the patients. RVEF was correctly estimated in 67% of the examinations, but none of the clinicians identified greater than 43% of the relatively few patients with reduced radionuclide RVEF and they greatly disagreed as to who among the patients had a reduced RVEF. Previous myocardial infarction, electrocardiographic infarct location, Killip class, physical signs of left- and right-sided heart failure, radiographic pulmonary congestion and cardiomegaly were analyzed to determine which were the most helpful in predicting LVEF and RVEF. The results disclosed that several variables, traditionally believed to be reliable indexes of reduced ventricular function, were surprisingly poor predictors of LVEF and RVEF.
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Affiliation(s)
- N Gadsbøll
- Department of Cardiology, Glostrup University Hospital, Denmark
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Osgaard O, Rosenørn J, Hein E. [Complete extirpation of an arterio-venous malformation of the brain stem]. Ugeskr Laeger 1985; 147:4207-8. [PMID: 4090071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Hartling OJ, Høilund-Carlsen PF, Hesse B, Dige-Petersen H, Rosenørn MA, Hein E, Hegedüs V. [Angioscintigraphy of the iliac arteries. Diagnostic value and observer variation]. Ugeskr Laeger 1984; 146:3036-9. [PMID: 6515939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Hartling OJ, Høilund-Carlsen PF, Hesse B, Dige-Petersen H, Rosenørn MA, Hein E, Hegedüs V. Evaluation of intravenous radionuclide angiography in detection of occlusive disease of the iliac arteries. Eur J Radiol 1984; 4:205-9. [PMID: 6088237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Radionuclide angiography (angioscintigraphy) of the iliac arteries was performed in 173 patients consecutively referred for arterial insufficiency of the legs. In 83 of the patients femoral angiography was also performed. The interobserver variation was evaluated by the agreement indices, kappa (K) and weighted kappa (Kw). For angiography the interobserver agreement was high (K and Kw 0.65 and 0.77 respectively). For angioscintigraphy the agreement between observers was fair (K = 0.52, Kw = 0.68), and equal to the intraobserver agreement (K = 0.55, Kw = 0.65). The comparison between angioscintigraphy and angiography gave K-values of 0.22-0.31 and Kw-values of 0.37-0.48. The nosographic sensitivity of angioscintigraphy was 61%, the nosographic specificity was 93%, and the predictive value for both a positive and a negative test was 83%. The prevalence of occlusion or severe stenosis was 34%. Inguinal pulse palpation detected 48% of iliac occlusions. It is concluded that the reliability of angioscintigraphy in the diagnosis of iliac arterial occlusive disease is acceptable for a non-invasive, rapid, inexpensive and widely available screening procedure. Although anatomical details are not visualized the information obtained is useful for the detailed planning and choice of subsequent diagnostic and therapeutic procedures. The method is well suited for repeat studies and may be modified to include the femoral arteries.
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Hein E. Conflict. Crit Care Update 1981; 8:22-7. [PMID: 6907068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Hein E. [Nitrate content of green fodder and its significance in feeding]. Monatsh Veterinarmed 1970; 25:745-7. [PMID: 5537802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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