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- Ask, Maria, et al.
(författare)
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In-situ stress determination from breakouts in the Tornquist Fan, Denmark
- 1996
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Ingår i: Terra Nova. - : Wiley. - 0954-4879 .- 1365-3121. ; 8:6, s. 575-584
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Tidskriftsartikel (refereegranskat)abstract
- The Tornquist Fan, a fan-shaped region in Denmark and Western Baltic, is situated in the transition zone between the Western and Northern European Stress Provinces. Breakout data from 20 wells (0.3-3.6 km) were analysed. The fan can be divided into three stress provinces: (i) The area south of the Romo Fracture Zone is part of the Western European Stress Province and has NNW-SSE orientation of the maximum horizontal stress, (ii) The sediment cover in the Norwegian-Danish Basin is dominated by ENE-WSW orientated maximum horizontal stress, (iii) The maximum horizontal stress is sub-parallel to the strike of the Sorgenfrei-Tornquist Zone. Deviations from the regional stress field were observed in wells close to faults and salt diapirs. In wells south of the Sorgenfrei-Tornquist Zone, breakout occurrence decreases with increasing age of the stratigraphic units. The downhole breakout distribution seems to correlate with lithology and thickness of the sediment layer.
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- Engelmann U. Schröter A, Baur U, Werner O, Göransson B, Borälv E, Schwab M, Müller H, Bahner M, Meinzer HP.
(författare)
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Experiences with the German teleradiology system MEDICUS
- 1998
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Ingår i: Yearbook of Medical Informatics '98 - Health Informatics and the Internet. - : Stuttgart: Schattauer. ; , s. 199-207
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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- Gärdlund, B, et al.
(författare)
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Randomised, controlled trial of low-dose heparin for prevention of fatal pulmonary embolism in patients with infectious diseases. The Heparin Prophylaxis Study Group.
- 1996
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Ingår i: The Lancet. - : Elsevier BV. - 0140-6736 .- 1474-547X. ; 347:9012, s. 1357-61
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Fatal pulmonary embolism and other thromboembolic complications are common in hospital inpatients. However, there is little evidence on the routine use of pharmacological thromboprophylaxis in non-surgical patients. We assessed the efficacy and safety of low-dose heparin in the prevention of hospital-acquired, clinically relevant, fatal pulmonary embolism in patients with infectious diseases.METHODS: Our study used the postrandomisation consent design. 19,751 consecutive patients, aged 55 years or older, admitted to departments of infectious diseases in six Swedish hospitals, were screened for inclusion in the randomised, controlled, unblinded, multicentre trial. Of the eligible patients, 5776 were assigned subcutaneous standard heparin (5000 IU every 12 h) until hospital discharge or for a maximum of 3 weeks; 5917 were assigned no prophylactic treatment (control group). We sought consent only from the heparin group. Follow-up was for 3 weeks after discharge from hospital or for a maximum of 60 days from randomisation. The primary endpoint was necropsy-verified pulmonary embolism of predefined clinical relevance.FINDINGS: By intention-to-treat analysis mortality was similar in the heparin and control groups (5.3 vs 5.6%, p = 0.39) and the median time from admission to death was 16 days in both groups (IQR 8-31 vs 6-28 days). Necropsy-verified pulmonary embolism occurred in 15 heparin-treated and 16 control-group patients. There was a significant difference between heparin and control groups in median time from randomisation to fatal pulmonary embolism (28 [24-36] vs 12.5 [10-20] days, p = 0.007). This difference corresponds to the duration of heparin prophylaxis. Non-fatal thromboembolic complications occurred in more of the control than of the heparin group (116 vs 70, p = 0.0012).INTERPRETATION: Our findings do not support the routine use of heparin prophylaxis for 3 weeks or less in large groups of non-surgical patients. Further studies are needed to investigate whether heparin prophylaxis of longer duration may prevent fatal pulmonary embolism.
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