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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Kvantifiering av basala ganglier och parotiskörtlar i 11C PE2I-PET/DT : -Samband mellan dysfunktion av autonoma nervsystemet och kroppens körtlar / Quantification of basal ganglia and parotid glands in 11C PE2I-PET/CT : -Relationship between dysfunction of the autonomic nervous system and body glands

Mir Bazel, Seyedeh Hourieh January 2021 (has links)
SAMMANFATTNING Bakgrund: Vid hjärnundersökningar finns även andra strukturer utanför hjärnan som är innerverade av nervsystemet. Det är möjligt att sjukdomen i hjärnan avspeglas där också. Det finns många sjukdomar och tillstånd med liknande symptom och att ställa rätt diagnos kan vara svårt. Många sjukdomar påverkar det autonoma nervsystemet och ett sätt att hitta rätt diagnos kan vara att undersöka hur det fungerar.  Syfte: Att se vilka variationer av radioaktivitetsupptag som fanns i parotiskörtlarna mellan patienterna som avbildades med 11C-PE2I PET/DT. Samt att kunna se om denna information kan utnyttjas till att identifiera dysfunktion av autonoma nervsystemet (MRT-bilder är även en tillhjälps verktyg). Metod: Studiedesignen var en retrospektiv kvantitativ studie. Hundra (konsekutiva) patienter indelades i grupper så som: normal, Parkinsons, Parkinsons sjukdom med kombination av vaskulära förändringar och atypisk Parkinson sjukdom. Isotopupptag i basala ganglier och parotiskörtlar har mätts. Några patienters MRT- bilder var tillgängligt till kvantifiering.   Resultat: kombinerade gruppen med Parkinsons sjukdom, atypisk Parkinsons sjukdom och vaskulära förändringar har en uppreglering av antalet fria dopaminreceptorer i parotis jämfört med friska (även i bara PSP samt bara vaskulära grupper) med (p <0.05).   Slutsats: Det finns variation av upptaget mellan en del av grupper därmed kan sjukdomen i hjärnan avspeglas i körtlar också.   Nyckelord: Neurodegenerativa sjukdomar, Autonom dysfunktion, 11CPE2I-PET/DT, parotiskörtlar, basala ganglier / ABSTRACT Background: At brain examination, there are also other structures outside the brain that are innervated by the nervous system. It is possible that the disease of the brain is reflected there as well. There are many diseases and conditions with similar symptoms and making the right diagnosis can be difficult. Many diseases affect the autonomic nervous system and one way to find the right diagnosis may be to investigate how it works.     Purpose: to see what variations in radioactivity uptake were found in the parotic glands between the patients depicted with the 11C-PE2I PET/CT. As well as being able to see how valuable this information is in being used to identify dysfunction of the autonomic nervous system (MRT- images are also an aids tool).   Method: The study design was a retrospective quantitative study. One hundred (consecutive) patients were divided in groups such as normal, Parkinson's, Parkinson's disease with combination of vascular changes and atypical Parkinson's disease. Isotope uptake in basal ganglia and parotic glands has been measured. Some patients' MRT images were available for quantification.     Result: the results show that the combined group of Parkinson's disease, atypical Parkinson's disease and vascular changes has an upregulation of the number of free dopamine receptors in parotid compared to healthy ones (also in PSP only and only vascular groups) with (p <0.05).    Conclusion: There is variation of uptake between some of the groups thus the disease in the brain can be reflected in glands as well.     Keywords: Neurodegenerative Diseases, Autonomic Dysfunction, 11CPE2I-PET/CT, Parotid Glands, Basal Ganglia
12

Teste cardiopulmonar de exercício em pacientes com fibromialgia juvenil / Cardiopulmonary Exercise Test in patients with Juvenile fibromyalgia syndrome

Maia, Magda Maria 10 January 2017 (has links)
Introdução: A disfunção do sistema nervoso autônomo (disfunção autonômica ou dissautonomia) tem sido associada à fisiopatologia da fibromialgia em pacientes adultos. A modulação cardíaca em resposta ao exercício foi demonstrada em uma série de estudos em adultos com fibromialgia que evidenciaram reduzida capacidade aeróbia, assim como o comprometimento autonômico cardíaco e incompetência cronotrópica, que é a incapacidade de aumentar a frequência cardíaca concomitante ao aumento da intensidade do exercício. No entanto, a capacidade aeróbica e a disautonomia, definidas a partir da avaliação dos parâmetros do teste de exercício cardiopulmonar, não foram estudadas em pacientes adolescentes com síndrome da fibromialgia (FMJ). Objetivo: Avaliar os parâmetros do teste de exercício cardiopulmonar em pacientes com FMJ e controles saudáveis e as possíveis correlações entre estes parâmetros e a qualidade de vida relacionada à saúde (QVRS), capacidade funcional e dor nos pacientes FMJ. Métodos: Estudo transversal multicêntrico incluindo 25 pacientes com FMJ e 25 controles saudáveis. Ambos os grupos participavam somente das aulas de educação física na escola. O teste de exercício cardiopulmonar de esforço em esteira permitiu avaliar a resposta cardiorrespiratória durante o exercício. A resposta cronotrópica foi avaliada pela medida da reserva cronotrópica. Foram avaliados dor, capacidade funcional e QVRS. Resultados: A mediana da idade atual foi similar nos pacientes com FMJ e controles saudáveis (15 vs. 15 anos, p=0,890), assim como o índice de massa corporal (p=0,332), gênero feminino (p=1,000) e estágios de Tanner (p=0,822). A mediana dos parâmetros da QVRS (escore total de saúde física e saúde psicossocial) foi significativamente menor nos pacientes com FMJ versus controles, de acordo com o autorrelato dos pacientes e de seus pais (p < 0,001). A mediana do pico FC [181 (150-198) vs. 197 (181-202) bpm, p < 0,001], da reserva cronotrópica (RC) [84 (53-98) vs. 99 (84-103) %, p < 0,001] e da FC de repouso à FC de pico [96 (65-181) vs. 127 (61-185) bpm, p=0,010] foram significantemente menores nos pacientes com FMJ quando comparados aos controles saudáveis. A mediana do ?FCR1 [15 (3-39) vs. 35 (9-52) bpm, p < 0,001], deltaFCR2 [37 (20-57) vs. 51 (32-94) bpm, p < 0,001], VO2 de pico [32.34 (24.24-39.65) vs. 36.4 (28.56-52.71) ml/kg/min, p=0,005], velocidade máxima [5 (4-6.3) vs. 5.9 (4.0-6.3) mph, p=0,001], tempo de exaustão [11.5 (8.5-14.5) vs. 14 (11-18) minutos, p < 0,001] e capacidade de trabalho [3.37 (2.04-5.6) vs. 3.89 (2.91-6.55) W/kg, p=0,006] foram significativamente menores nos pacientes com FMJ quando comparados aos controles. A frequência da incompetência cronotrópica (<= 80%) foi significativamente maior nos pacientes com FMJ versus controles (p=0,0006). Conclusões: Este estudo identificou incompetência cronotrópica e recuperação atenuada da FC em pacientes com FMJ, indicando disfunção autonômica / Introdução: Autonomic nervous system dysfunction (also named autonomic disturbance or dysautonomia) has been linked to physiopathology of adult patients with fibromyalgia. Cardiac modulation in response to exercise in case series of adult fibromyalgia revealed reduced aerobic capacity, as well as cardiac autonomic impairment and chronotropic incompetence, which is the inability to increase heart rate with an increase in exercise intensity. However, to our knowledge treadmill cardiorespiratory test and to assess aerobic capacity and dysautonomia has not been studied in adolescents with JFM patients. Objective: To assess cardiorespiratory exercise test parameters in Juvenile fibromyalgia syndrome (JFM) patients and healthy controls and possible correlations between these parameters and health-related quality of life (HRQL), functional ability and pain in JFM patients. Methods: A multicenter cross-sectional study included 25 JFM patients and 25 healthy controls. Both groups were engaged only in the physical education classes in school. A treadmill graded cardiorespiratory test was performed and heart-rate (HR) response during exercise was evaluated by the chronotropic reserve (CR). Pain, functional ability and HRQL were assessed. Results: The median current age was similar in JFM and controls (15 vs. 15years, p=0.890), as well as body mass index (p=0.332), female gender (p=1.000) and Tanner stages (p=0.822). The medians of HRQL parameters (total score/physical health/psychosocial health) were significantly lower in JFM versus controls according to patient and parent self-reports (p<0.001). The median of peak HR [181 (150-198) vs. 197 (181-202) bpm, p < 0.001], chronotropic reserve [84 (53-98) vs. 99 (84-103)%, p < 0.001] and resting to peak [96 (65-181) vs. 127 (61-185) bpm, p=0.010] were significantly lower in JFM compared to controls. The median of ?HRR1 [15 (3-39) vs. 35 (9-52) bpm, p < 0.001], deltaHRR2 [37 (20-57) vs. 51 (32-94) bpm, p < 0.001], peak VO2 [32.34 (24.24-39.65) vs. 36.4 (28.56-52.71) ml/kg/min, p=0.005]; peak speed [5 (4-6.3) vs. 5.9 (4.0-6.3) km/h, p=0.001], time to exhaustion [11.5 (8.5-14.5) vs. 14 (11-18) minutes, p < 0.001] and working capacity on power [3.37 (2.04-5.6) vs. 3.89 (2.91-6.55) W/kg, p=0.006] were significantly lower in JFM compared to controls. The frequency of chronotropic incompetence ( <= 80%) was significantly higher in JFM versus controls (p=0.0006). Conclusions: This study identified chronotropic incompetence and delayed HR recovery in JFM patients, indicating autonomic dysfunction
13

Teste cardiopulmonar de exercício em pacientes com fibromialgia juvenil / Cardiopulmonary Exercise Test in patients with Juvenile fibromyalgia syndrome

Magda Maria Maia 10 January 2017 (has links)
Introdução: A disfunção do sistema nervoso autônomo (disfunção autonômica ou dissautonomia) tem sido associada à fisiopatologia da fibromialgia em pacientes adultos. A modulação cardíaca em resposta ao exercício foi demonstrada em uma série de estudos em adultos com fibromialgia que evidenciaram reduzida capacidade aeróbia, assim como o comprometimento autonômico cardíaco e incompetência cronotrópica, que é a incapacidade de aumentar a frequência cardíaca concomitante ao aumento da intensidade do exercício. No entanto, a capacidade aeróbica e a disautonomia, definidas a partir da avaliação dos parâmetros do teste de exercício cardiopulmonar, não foram estudadas em pacientes adolescentes com síndrome da fibromialgia (FMJ). Objetivo: Avaliar os parâmetros do teste de exercício cardiopulmonar em pacientes com FMJ e controles saudáveis e as possíveis correlações entre estes parâmetros e a qualidade de vida relacionada à saúde (QVRS), capacidade funcional e dor nos pacientes FMJ. Métodos: Estudo transversal multicêntrico incluindo 25 pacientes com FMJ e 25 controles saudáveis. Ambos os grupos participavam somente das aulas de educação física na escola. O teste de exercício cardiopulmonar de esforço em esteira permitiu avaliar a resposta cardiorrespiratória durante o exercício. A resposta cronotrópica foi avaliada pela medida da reserva cronotrópica. Foram avaliados dor, capacidade funcional e QVRS. Resultados: A mediana da idade atual foi similar nos pacientes com FMJ e controles saudáveis (15 vs. 15 anos, p=0,890), assim como o índice de massa corporal (p=0,332), gênero feminino (p=1,000) e estágios de Tanner (p=0,822). A mediana dos parâmetros da QVRS (escore total de saúde física e saúde psicossocial) foi significativamente menor nos pacientes com FMJ versus controles, de acordo com o autorrelato dos pacientes e de seus pais (p < 0,001). A mediana do pico FC [181 (150-198) vs. 197 (181-202) bpm, p < 0,001], da reserva cronotrópica (RC) [84 (53-98) vs. 99 (84-103) %, p < 0,001] e da FC de repouso à FC de pico [96 (65-181) vs. 127 (61-185) bpm, p=0,010] foram significantemente menores nos pacientes com FMJ quando comparados aos controles saudáveis. A mediana do ?FCR1 [15 (3-39) vs. 35 (9-52) bpm, p < 0,001], deltaFCR2 [37 (20-57) vs. 51 (32-94) bpm, p < 0,001], VO2 de pico [32.34 (24.24-39.65) vs. 36.4 (28.56-52.71) ml/kg/min, p=0,005], velocidade máxima [5 (4-6.3) vs. 5.9 (4.0-6.3) mph, p=0,001], tempo de exaustão [11.5 (8.5-14.5) vs. 14 (11-18) minutos, p < 0,001] e capacidade de trabalho [3.37 (2.04-5.6) vs. 3.89 (2.91-6.55) W/kg, p=0,006] foram significativamente menores nos pacientes com FMJ quando comparados aos controles. A frequência da incompetência cronotrópica (<= 80%) foi significativamente maior nos pacientes com FMJ versus controles (p=0,0006). Conclusões: Este estudo identificou incompetência cronotrópica e recuperação atenuada da FC em pacientes com FMJ, indicando disfunção autonômica / Introdução: Autonomic nervous system dysfunction (also named autonomic disturbance or dysautonomia) has been linked to physiopathology of adult patients with fibromyalgia. Cardiac modulation in response to exercise in case series of adult fibromyalgia revealed reduced aerobic capacity, as well as cardiac autonomic impairment and chronotropic incompetence, which is the inability to increase heart rate with an increase in exercise intensity. However, to our knowledge treadmill cardiorespiratory test and to assess aerobic capacity and dysautonomia has not been studied in adolescents with JFM patients. Objective: To assess cardiorespiratory exercise test parameters in Juvenile fibromyalgia syndrome (JFM) patients and healthy controls and possible correlations between these parameters and health-related quality of life (HRQL), functional ability and pain in JFM patients. Methods: A multicenter cross-sectional study included 25 JFM patients and 25 healthy controls. Both groups were engaged only in the physical education classes in school. A treadmill graded cardiorespiratory test was performed and heart-rate (HR) response during exercise was evaluated by the chronotropic reserve (CR). Pain, functional ability and HRQL were assessed. Results: The median current age was similar in JFM and controls (15 vs. 15years, p=0.890), as well as body mass index (p=0.332), female gender (p=1.000) and Tanner stages (p=0.822). The medians of HRQL parameters (total score/physical health/psychosocial health) were significantly lower in JFM versus controls according to patient and parent self-reports (p<0.001). The median of peak HR [181 (150-198) vs. 197 (181-202) bpm, p < 0.001], chronotropic reserve [84 (53-98) vs. 99 (84-103)%, p < 0.001] and resting to peak [96 (65-181) vs. 127 (61-185) bpm, p=0.010] were significantly lower in JFM compared to controls. The median of ?HRR1 [15 (3-39) vs. 35 (9-52) bpm, p < 0.001], deltaHRR2 [37 (20-57) vs. 51 (32-94) bpm, p < 0.001], peak VO2 [32.34 (24.24-39.65) vs. 36.4 (28.56-52.71) ml/kg/min, p=0.005]; peak speed [5 (4-6.3) vs. 5.9 (4.0-6.3) km/h, p=0.001], time to exhaustion [11.5 (8.5-14.5) vs. 14 (11-18) minutes, p < 0.001] and working capacity on power [3.37 (2.04-5.6) vs. 3.89 (2.91-6.55) W/kg, p=0.006] were significantly lower in JFM compared to controls. The frequency of chronotropic incompetence ( <= 80%) was significantly higher in JFM versus controls (p=0.0006). Conclusions: This study identified chronotropic incompetence and delayed HR recovery in JFM patients, indicating autonomic dysfunction
14

Depressivität, Angst, Vitale Erschöpfung, Lebensqualität und ihr Zusammenhang mit Herzfrequenzvariabilität bei Patienten mit kardiovaskulären Risikofaktoren / Depression, anxiety, vital exhaustion, quality of life and its relation with heart rate variability in patients with cardiovascular risk factors

Duden, Vera Charlotte 22 August 2012 (has links)
No description available.

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