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Maternal obesity, duration of labor and the role of leptin
Background: The prevalence of obesity substantially increases in pregnant women. Maternal obesity is associated with adverse maternal and neonatal outcomes. The increased risk for cesarean section present in obese women has been related to potential impaired uterine contractility. The mechanism that underlies this theory is not clear. In vitro studies have shown that leptin, produced by adipose tissue and the placenta, exerts an inhibitory effect on myometrial contractility. The aim of this thesis was to evaluate the labor process in relation to maternal body mass index (BMI) and the clinical role of leptin in this process. Material and Methods: Studies I-IV are cohort studies. The first two...
Maternal overweight and obesity
Objectives: The overall aim of this thesis was to evaluate the impact of maternal body mass index (BMI) on obstetric and neonatal outcomes in adolescents as well as on treatment with oxytocin infusion during labor regarding cumulative oxytocin dose and plasma levels of oxytocin. Material and Methods: Studies I and II were nationwide Swedish register studies including 31,386 primiparous adolescents subdivided in BMI groups and obesity classes according to early pregnancy BMI. Additionally, 178,844 low-risk normal weight adult women, called “the standard women” were included for comparison with the adolescents in the different BMI groups. Study III was an observational study conducted at s...
Drug use during pregnancy with focus on antidepressants
Background: More than half of pregnant women use at least one prescribed medication during pregnancy, and almost all pregnant women use some kind of over-the-counter medication. Depression is one of the most common diseases in the world today, also during the peripartum period. The prevalence of pregnant women using antidepressant medication is increasing. General knowledge about the use of medication during pregnancy needs to improve. The overall aim of the studies on which this thesis is based is therefore to examine different aspects of medication use during pregnancy, with a focus on antidepressants. Material and methods: Study I was a questionnaire study where 850 pregnant women were as...
Fire & Ash
The gripping conclusion to the riveting Rot & Ruin series. When Benny and his friends learn that a scientist may have discovered a cure for the zombie plague, they mount a search and rescue mission, unaware that the reapers want the cure to wipe humanity off the face of the earth.
General Catalog
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Automated Assessment of Blood Flow in the Cardiovascular System Using 4D Flow MRI
Medical image analysis focuses on the extraction of meaningful information from medical images in order to facilitate clinical assessment, diagnostics and treatment. Image processing techniques have gradually become an essential part of the modern health care system, a consequence of the continuous technological improvements and the availability of a variety of medical imaging techniques. Magnetic Resonance Imaging (MRI) is an imaging technique that stands out as non-invasive, highly versatile, and capable of generating high quality images without the use of ionizing radiation. MRI is frequently performed in the clinical setting to assess the morphology and function of the heart and vessels....
Improving Assessments of Hemodynamics and Vascular Disease
Blood vessels are more than simple pipes, passively enabling blood to pass through them. Their form and function are dynamic, changing with both aging and disease. This process involves a feedback loop wherein changes to the shape of a blood vessel affect the hemodynamics, causing yet more structural adaptation. This feedback loop is driven in part by the hemodynamic forces generated by the blood flow, and the distribution and strength of these forces appear to play a role in the initiation, progression, severity, and the outcome of vascular diseases. Magnetic Resonance Imaging (MRI) offers a unique platform for investigating both the form and function of the vascular system. The form of the...
