| 1. |
- Bjällmark, Anna, et al.
(författare)
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A system to quantify and visualize ventricular rotation pattern of the heart
- 2009
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Patent (populärvet., debatt m.m.)abstract
- Different modalities have been used to describe the rotational motion of the ventricles of the heart and studies have indicated LV twist to be an additional integral component in LV function. So far, only amplitudes and timings of rotation have been reported, whereas no method is available to fully describe the rotation pattern of the ventricles. The object of the present application is to achieve a system that presents a novel way to quantify and visualize the ventricular rotation pattern of the heart. We present a novel method that assesses and describes the rotation pattern by calculating the rotation axis of the ventricle. Non- invasive image acquisition is required to collect rotation values from different positions of the myocardium. Thereafter, a kinematic model of a ventricle is constructed to determine the rotation planes at different levels of the heart. The motion of the rotation planes are visualized by plotting the normal vectors of the planes over time, i.e. the rotation axis of the planes. This new method is different to all other methods used today for assessing cardiac function, as it does not describe the amplitude of a motion but the relationship in motion between different parts within a ventricle. Preliminary results indicate that the rotation axis is more sensitive to changes in the rotation pattern than conventional measurements of ventricular rotation. This new method could be used for early detection of cardiac diseases and for selection of patients for and optimization of cardiac resynchronization therapy.
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| 2. |
- Fabian, Helena, et al.
(författare)
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Characteristics of primiparous women who are not reached by parental education classes after childbirth in Sweden
- 2006
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253. ; 95:11, s. 1360-1369
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Tidskriftsartikel (refereegranskat)abstract
- Background: Parental education classes are part of the national child health promotion programme of the Swedish Child Health Clinics (CHC). Aim: To investigate attendance at parental education classes during the infant's first year, and to identify factors associated with non-attendance in primiparous women. Methods: Swedish-speaking women were recruited from 97% of all antenatal clinics in Sweden during 3 wk, evenly spread over 1 y from 1999 to 2000. Questionnaires were mailed in early pregnancy, and at 2 mo and 1 y after the birth. Two thousand, four hundred and forty women answered the main outcome question about class attendance asked in the third questionnaire, and 1076 of these were first-time mothers. Results: Seventy-eight per cent of the primiparas attended classes and 31% of the multiparas. Factors associated with non-attendance in primiparas were: native language other than Swedish, a low level of education, smoking during pregnancy, inconvenient timing of pregnancy, maternal hospital admission, and infant health problems. Three per cent of the primiparas did not attend classes either during pregnancy or after the birth, and this group seemed to constitute an even less privileged group.
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| 3. |
- Fabian, Helena, et al.
(författare)
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Childbirth and parenthood education classes in Sweden. Women's opinion and possible outcomes
- 2005
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 0001-6349. ; 84:5, s. 436-443
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To investigate first-time mothers' views about antenatal childbirth and parenthood education and their contact with other class participants after birth, and to compare participants and non-participants with respect to the use of pain relief, experience of pain, mode of delivery, childbirth overall, duration of breastfeeding, and assessment of parental skills. METHODS: A national cohort of 1197 Swedish-speaking women completed three questionnaires: during early pregnancy, 2 months, and 1 year after giving birth. RESULTS: Seventy-four percent of first-time mothers stated that antenatal education helped prepare them for childbirth, and 40% for early parenthood. One year after giving birth, 58% of the mothers had met with other class participants. These outcomes were associated with the number of class sessions. When controlling for the selection of women into participants and non-participants, no statistical differences were found concerning memory of labor pain, mode of delivery, overall birth experience, duration of breastfeeding, and assessment of parental skills. However, participants had a higher rate of epidural analgesia. Mothers who were young, single, with low level of education, living in a small city, and smokers were less likely to find the classes helpful. CONCLUSION: Participation in childbirth and parenthood education classes did not seem to affect first-time mothers' experience of childbirth and assessment of parental skills, but expanded their social network of new parents. The higher epidural rate suggests that participation in classes made women more aware of pain relief techniques available, rather than improving their own coping with pain. More research should focus on current forms of antenatal education, with special focus on women of low socioeconomic status.
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| 4. |
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| 5. |
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| 6. |
- Waldenström, U
(författare)
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[Doulas are necessary!]
- 2005
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Ingår i: Lakartidningen. - 0023-7205. ; 102:4, s. 221-2
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Tidskriftsartikel (refereegranskat)
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| 7. |
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| 8. |
- Waldenström, U
(författare)
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Normal childbirth and evidence based practice
- 2007
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Ingår i: Women and birth : journal of the Australian College of Midwives. - : Elsevier BV. - 1871-5192. ; 20:4, s. 175-80
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Tidskriftsartikel (refereegranskat)
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| 9. |
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| 10. |
- Zohari, Siamak, et al.
(författare)
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Phylogenetic analysis of the non-structural (NS) gene of influenza A viruses isolated from mallards in Northern Europe in 2005
- 2008
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Ingår i: Virology Journal. - 1743-422X. ; 5:Article ID: 147
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Tidskriftsartikel (refereegranskat)abstract
- Background: Although the important role of the non-structural 1 (NS) gene of influenza A in virulence of the virus is well established, our knowledge about the extent of variation in the NS gene pool of influenza A viruses in their natural reservoirs in Europe is incomplete. In this study we determined the subtypes and prevalence of influenza A viruses present in mallards in Northern Europe and further analysed the NS gene of these isolates in order to obtain a more detailed knowledge about the genetic variation of NS gene of influenza A virus in their natural hosts. Results: A total number of 45 influenza A viruses of different subtypes were studied. Eleven haemagglutinin-and nine neuraminidase subtypes in twelve combinations were found among the isolated viruses. Each NS gene reported here consisted of 890 nucleotides; there were no deletions or insertions. Phylogenetic analysis clearly shows that two distinct gene pools, corresponding to both NS allele A and B, were present at the same time in the same geographic location in the mallard populations in Northern Europe. A comparison of nucleotide sequences of isolated viruses revealed a substantial number of silent mutations, which results in high degree of homology in amino acid sequences. The degree of variation within the alleles is very low. In our study allele A viruses displays a maximum of 5% amino acid divergence while allele B viruses display only 2% amino acid divergence. All the viruses isolated from mallards in Northern Europe possessed the typical avian ESEV amino acid sequence at the C-terminal end of the NSI protein. Conclusion: Our finding indicates the existence of a large reservoir of different influenza A viruses in mallards population in Northern Europe. Although our phylogenetic analysis clearly shows that two distinct gene pools, corresponding to both NS allele A and B, were present in the mallards populations in Northern Europe, allele B viruses appear to be less common in natural host species than allele A, comprising only about 13% of the isolates sequenced in this study.
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