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- Fagevik Olsén, Monika, 1964, et al.
(författare)
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Effects of a Training Intervention for Enhancing Recovery after Ivor-Lewis Esophagus Surgery: A Randomized Controlled Trial.
- 2017
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Ingår i: Scandinavian journal of surgery : SJS : official organ for the Finnish Surgical Society and the Scandinavian Surgical Society. - : SAGE Publications. - 1799-7267. ; 106:2, s. 116-125
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Tidskriftsartikel (refereegranskat)abstract
- There is a risk of decreased physical function, quality of life and persistent pain after open surgery for esophageal cancer. There are currently no studies that evaluate the effect of any postoperative intervention, including physical exercises, after this type of surgery. The aim of the study was therefore to evaluate the effect of a training intervention after Ivor-Lewis resection of the esophagus.Patients scheduled for esophagus resection according to Ivor-Lewis were randomized to an intervention group or a control group. The training intervention started at discharge and lasted three months. Before discharge, patients were given three leaflets with exercises to increase range of motion in the affected area and exercises aiming to restore lung function and physical function. All exercises were described in detail and the patients carried out the ones in the first program under supervision. Before surgery and three months after discharge, the patients estimated their level of physical function, level of physical activity, and quality of life. They also underwent spirometry, measurements of range of motion in the rib cage, spine, and shoulders, and three functional tests. Comparisons of differences within and between the groups were made.A total of 43 of 64 randomized patients participated in the follow-up. Postoperatively, the patients in the intervention group had a significantly higher degree of physical function and less deteriorated range of motion in right shoulder flexion and thoracic left lateral flexion. There were no significant differences between the groups in lung function, pain, or quality of life.The results of the three-month intervention indicate that specific training can positively affect physical function and range of motion to preoperative values. The intervention was well tolerated, and no side effects were registered.
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- Wendt, Ulrika, 1966
(författare)
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Linear and Non-Linear Analysis of Plates and Shells by Use of Morley Finite Elements
- 1997
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The thesis deals with plate bending analysis and shell analysis in static linear and dynamic non-linear situations. The thesis contains two parts. In common for them is the use of the Germain-Kirchhoff plate theory, constant strain, constant curvature triangular plate elements and adaptive improvement of original solution. In the first part a numerical plate bending solution according to the Germain-Kirchhoff plate theory is improved by adaptively adding the shear deformation. A mixed formulation is used in order to make the adaptive process simple. A high quality numerical approximation of the shear force along the boundaries are obtained by use of the reaction force. Numerical results for thin and moderately thick circular and rectangular plates and for thin skew plates are compared to analytical and other numerical solutions and found to have good accuracy. In the second part a dynamic explicit shell formulation with large displacements and large elastic-plastic deformations has been implemented. An adaptive mesh refinement has been installed. An impact load on a shell is simulated. It has been compared with experimental results and results obtained with a commercial code. The new code can be used as a basis for a sheet metal forming simulation.
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