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- Styrud, J, et al.
(författare)
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Appendectomy versus antibiotic treatment in acute appendicitis. A prospective multicenter randomized controlled trial
- 2006
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Ingår i: World Journal of Surgery. - : Springer Science and Business Media LLC. - 0364-2313 .- 1432-2323. ; 30:6, s. 1033-1037
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Tidskriftsartikel (refereegranskat)abstract
- Background Appendectomy has been the treatment for acute appendicitis for over 120 years. Antibiotic treatment has occasionally been used in small uncontrolled studies, instead of operation, but this alternative has never before been tried in a multicenter randomized trial. Patients and Methods Male patients, 18–50 years of age, admitted to six different hospitals in Sweden between 1996 and 1999 were enrolled in the study. No women were enrolled by decision of the local ethics committee. If appendectomy was planned, patients were asked to participate, and those who agreed were randomized either to surgery or to antibiotic therapy. Patients randomized to surgery were operated on with open surgery or laparoscopically. Those randomized to antibiotic therapy were treated intravenously for 2 days, followed by oral treatment for 10 days. If symptoms did not resolve within 24 hours, an appendectomy was performed. Participants were monitored at the end of 1 week, 6 weeks, and 1 year. Results During the study period 252 men participated, 124 in the surgery group and 128 in the antibiotic group. The frequency of appendicitis was 97% in the surgery group and 5% had a perforated appendix. The complication rate was 14% in the surgery group. In the antibiotic group 86% improved without surgery; 18 patients were operated on within 24 hours, and the diagnosis of acute appendicitis was confirmed in all but one patient, and he was suffering from terminal ileitis. There were seven patients (5%) with a perforated appendix in this group. The rate of recurrence of symptoms of appendicitis among the 111 patients treated with antibiotics was 14% during the 1-year follow-up. Conclusions Acute nonperforated appendicitis can be treated successfully with antibiotics. However, there is a risk of recurrence in cases of acute appendicitis, and this risk should be compared with the risk of complications after appendectomy.
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| 4. |
- Ahlberg, Charlotte, et al.
(författare)
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Self-organization of fibers in a suspension between two counter-rotating discs
- 2009
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Ingår i: Proceedings of the ASME Fluids Engineering Division Summer Conference 2009. - NEW YORK : AMER SOC MECHANICAL ENGINEERS. - 9780791843727 ; , s. 585-592
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Konferensbidrag (refereegranskat)abstract
- The behavior of fibers suspended in a flow between two flat counter-rotating discs has been studied experimentally. Captured images of the fibers in the flow were analyzed by steerable filters, to extract positions and orientations of the fibers. Experiments were performed for gaps between the discs of less than one fiber length, and for equal absolute values of the angular velocities for the discs. The length-to-diameter ratio of the fibers was approximately 14. During certain conditions, the fibers organized themselves in a distinct manner, which we will denote as fiber trains, in which three or more fibers are aligned next to each other, at the same radial position, with a short fiber-to-fiber distance. The direction of the individual fibers is radial and the direction of the whole train is tangential. Trains containing more than 60 fibers have been observed and are quite impressing.
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| 6. |
- Calner, Mikael, et al.
(författare)
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The first record of Odontopleura ovata (Trilobita) from Scandinavia: part of a middle Silurian intercontinental shelly benthos mass occurrence
- 2006
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Ingår i: GFF. - 2000-0863. ; 128:1, s. 33-37
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Tidskriftsartikel (refereegranskat)abstract
- We report here, for the first time, the occurrence of the trilobite Odontopleura (Odontopleura) ovata Emmrich, 1839 from Scandinavia. The specimens came in light during a study of middle Silurian calcareous mudstone formed in offshore settings of the Baltic Basin (Grotlingbo-1 core, south-eastern Gotland). Intrabasinal correlation shows that the taxon had a brief mass occurrence during the latest dubius, parvus-nassa, and dubius-nassa graptolite chrons across the Baltic Shield and East European Platform without inhabiting the carbonate platforms that fringed the basin. The sudden appearance of O. ovata and an abundant brachiopod fauna in the core corresponds in time with a general shelly benthos mass occurrence in the earliest recovery phase of the middle Silurian global conodont and graptolite crisis (the Mulde Event) and correlates with a transgression and geographical expansion of the Baltic Basin.
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| 8. |
- Hackman, P, et al.
(författare)
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Welander distal myopathy: The evasive gene
- 2008
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Ingår i: NEUROMUSCULAR DISORDERS. - : Elsevier BV. - 0960-8966. ; 18:9-10, s. 767-767
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Hedberg, B, et al.
(författare)
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A sarcoplasmic body myopathy
- 2006
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Ingår i: NEUROMUSCULAR DISORDERS. - : Elsevier BV. - 0960-8966. ; 16:9-10, s. 690-690
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 10. |
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