Sökning: "Cardiovascular system"

Visar resultat 16 - 20 av 507 avhandlingar innehållade orden Cardiovascular system.

1. 16. Obstructive sleep apnea and cardiovascular morbidity

   Författare :Yüksel Peker; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstructive sleep apnea; cardiovascular; hypertension; coronary artery disease; hospitalization; cost utility; morbidity; mortality; secondary prevention; angiotensin II; CPAP;

   Sammanfattning : Obstructive sleep apnea (OSA) affects 24 % of middle-aged men and 9 % of women in USA but the treatment criterion, daytime sleepiness is reported by 17 and 22 % of these subjects, respectively. Some previous studies have suggested an association between OSA and cardiovascular disease (CVD), but the conclusions have been conflicting due to co-existing traditionally recognized risk factors. LÄS MER

3. 17. Endothelin and angiotensin II receptors in human coronary arteries and bypass grafts - Alterations in cardiovascular disease

   Författare :Angelica Wackenfors; Lunds universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; vasoconstriction; receptors; cardiovascular disease; human; coronary arteries;

   Sammanfattning : Angiotensin II (Ang II) and endothelin-1 (ET-1) induce strong vasoconstriction via activation of receptors on vascular smooth muscle cells. In this thesis, the contractile Ang II and endothelin receptors were examined in endothelium-denuded human coronary arteries and in bypass grafts (the left internal mammary artery and the saphenous vein), with focus on receptor alterations in cardiovascular disease. LÄS MER

4. 18. Microvesicle signaling in cardiovascular biology under normal and pathobiological conditions

   Författare :Paulina Bryl-Gorecka; Kardiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; microvesicles; cardiovascular disease; atherosclerosis; biomarkers; acoustic trapping;

   Sammanfattning : Cardiovascular disease (CVD) is one of the leading causes of death worldwide. Atherosclerosis, a chronic pathology directly related to the circulatory system, develops due to an interplay between several molecular events. Atherosclerotic plaque build-up can lead to a reduction in arterial blood flow and finally, myocardial infarction (MI). LÄS MER

5. 19. Sequence and dispersion of repolarization of the right atrium: Implications of repolarization disturbance in atrial fibrillation

   Författare :Zhen Li; Kardiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; electroanatomical mapping; monophasic action potential; atrial fibrillation; repolarization; dispersion;

   Sammanfattning : To explore the global sequence and dispersion of repolarization of the right atrium, monophasic action potentials (MAPs) were sequentially recorded from the right atrium using an electroanatomical mapping (CARTO) system in 10 healthy pigs and in 10 patients with (n=6) and without (n=4) paroxysmal atrial fibrillation (PAF) during sinus rhythm, or using two MAP recording catheters in 30 patients with or without PAF (n=15 each) during sinus rhythm, pacing, and programmed stimulation. The dispersion of activation time (AT), repolarization time (RT) and MAP duration (MAPd) were analyzed. LÄS MER

7. 20. Aspects on coronary heart disease prevention in clinical practice

   Författare :Martin Stagmo; Kardiologiska klinikens forskargrupp; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prevention; Kardiovaskulära systemet; Cardiovascular system; Medicin människa och djur ; Medicine human and vertebrates ; nurse-led clinics; risk stratification; Implementation; Coronary hert disease;

   Sammanfattning : Prevention of first time disease or recurrence of coronary heart disease (CHD) is a major task for the health service. Guidelines regarding CHD prevention have been issued but studies have shown that treatment goals are inadequately met in clinical practice and there is urgent need for improved methods of implementation of guidelines. LÄS MER