Search results for "Circulation"

Medium-term effects of bisoprolol administration on renal hemodynamics and function in mild to moderate essential hypertension

2007

Arterial hypertension is a significant cause of end-stage renal failure; effective treatment of hypertensive patients reduces the rate of progression of this disorder. ss-Blockers, particularly nonselective agents, are associated with deterioration of renal function in patients with chronic renal failure. Previous studies on the interaction of the beta1-selective adrenergic antagonist bisoprolol with kidney function have been performed only acutely and over the short term. This study was designed to evaluate the antihypertensive efficacy and effects on renal hemodynamics and function of bisoprolol during medium-term (6 mo) treatment of patients with mild to moderate essential hypertension. …

« Recyclages audiovisuels dans le documentaire de création contemporain »

2022

La numérisation à grande échelle et la mise en ligne des fonds d’archives filmiques, la prolifération d’images sur internet, notamment depuis l’apparition de YouTube en 2005, ou encore les techniques numériques de traitement des images ont favorisé l’essor des films de found footage –littéralement enregistrements ou images trouvés–, une modalité qui est devenue une tendance marquante du documentaire contemporain. Certaines de ces œuvres, parfois constituées intégralement d’images de « seconde main » (Blümlinger, 2013), au-delà de la reconnaissance critique et de l’intérêt des chercheurs, ont connu le succès en salles ou sur les plateformes et ont été projetées et récompensées dans les festi…

ORAL MICROVASCULAR ABNORMALITIES IN PATIENTS WITH RHEUMATOID ARTHRITIS

2006

Microvascular involvement represents one of the first apparent steps in many autoimmune diseases such as rheumatoid arthritis (RA). Early in the disease, peripheral microangiopathy may be easily recognized and studied by videocapillaroscopy. The aim of this study has been to observe the differences in labial microcirculation between healthy patients and patients suffering from RA. A total of 30 healthy patients and 30 patients suffering from RA were examined. The patients with conditions known to compromise microcirculation, such as diabetes, hypertension, or some pharmacological treatments were not included in the study. All the patients were non-smokers. Labial capillaroscopy was used to …

Microvascular periodontal alterations: A possible relationship between periodontitis and rheumatoid arthritis.

2007

Abstract BACKGROUND: Microvascular involvements represent one of the first steps in many autoimmune diseases such as rheumatoid arthritis (RA). The aim of this study was to investigate the differences in periodontal microcirculation between healthy subjects and patients suffering from RA. METHODS: Thirty healthy subjects and 30 patients suffering from RA were examined. The patients who showed conditions known to compromise microcirculation, such as diabetes, hypertension, pharmacological treatments, were not included in the group of healthy patients. All the patients were non-smokers. Periodontal capillaroscopy was used to investigate the characteristics of microcirculation. Visibility, cou…

Datortomogrāfijas protokola pielietošana smadzeņu nāves apstiprināšanai

2020

Bakalaura darba tēma ir “Datortomogrāfijas protokola pielietošana smadzeņu nāves apstiprināšanā”. Attīstoties intensīvās terapijas un transplantoloģijas nozarēm, smadzeņu nāves diagnostikā nepieciešams papildus veikt izmeklējumus, kas nodrošina ātru un efektīvu rezultātu, veicot apstiprinājumu smadzeņu nāves diagnozei. Datortomogrāfijas angiogrāfija ir viens no tiem. Bakalaura darba izvirzītā hipotēze ir: datortomogrāfijas protokols smadzeņu nāves apstiprināšanai katrā slimnīcā ir atšķirīgs. Darba mērķis ir noskaidrot datortomogrāfijas protokola pielietošanu smadzeņu nāves apstiprināšanai 3 Latvijas slimnīcās. Pētniecības uzdevumi ir apkopot un analizēt literatūru par galvas smadzeņu anatom…

Smoking habit and labial microcirculation

2004

Smoking habit is an important risk factor in oral diseases. In the last years, many studies tried to evaluate smoking effects on the microcirculation. It had never been used such a simple not invasive technique, like the video-capillaroscopic one. The aim of the research is to analyse “in vivo”, the microcirculation labial characteristics, and to evaluate the smoking effects by means of computerised videocapillaroscopy techniques. 35 healthy no-smoker patients and 35 healthy smoker patients were examined. The characteristics of the microcirculation in the areas of labial mucous were examined using computerised videomicroscopic techniques. For each patient we evaluated the visibility, the co…

MORPHOLOGIC CHANGES IN THE MICROCIRCULATION INDUCED BY CHRONIC SMOKING HABIT: A VIDEOCAPILLAROSCOPIC STUDY ON THE HUMAN GINGIVAL MUCOSA

2005

PURPOSE: To analyze the gingival characteristics of microcirculation in vivo and to evaluate the effects of smoking by means of computerised videocapillaroscopic techniques. METHODS: 35 healthy non-smokers and 35 healthy smokers were examined. The characteristics of gingival microcirculation were examined using computerized videomicroscopic techniques. For each subject, visibility, course, tortuosity and any images characteristic of capillary loops, besides the possible presence of microhemorrhages, the average caliber of the capillary loops and the number of capillary loops visible per square millimeter were evaluated. The investigation was non-invasive and repeatable for each subject. RES…

Arbitrage et usages

2001

Living Coccolithophores from the Gulf of Sirte (Southern Mediterranean Sea) during the summer of 2008

2012

The Gulf of Sirte is a largely unexplored area in the southernmost Mediterranean Sea.We are presenting here 2008 summer data on the distribution pattern of living coccolithophores, a main phytoplankton calcifying group, in 105 samples from 20 stations. The survey includes coastal and offshore stations, enabling us to provide indications on the dynamics of phytoplankton productivity in relation to oceanographic processes. The total coccosphere concentrations show higher values in the offshore stations and lower ones for coastal sites. Umbellosphaera tenuis, Emiliania huxleyi, Florisphaera profunda, Syracosphaera pulchra HOL (Calyptrosphaera oblonga) and Rhabdosphaera spp. dominate the assemb…

Intracranial Venous Alteration in Patients With Aneurysmal Subarachnoid Hemorrhage: Protocol for the Prospective and Observational SAH Multicenter St…

2022

BackgroundArterial vasospasm has been ascribed as the responsible etiology of delayed cerebral infarction in patients with aneurysmal subarachnoid hemorrhage (aSAH), but other neurovascular structures may be involved. We present the protocol for a multicenter, prospective, observational study focused on analyzing morphological changes in cerebral veins of patients with aSAH.Methods and AnalysisIn a retrospective arm, we will collect head arterial and venous CT angiograms (CTA) of 50 patients with aSAH and 50 matching healthy controls at days 0–2 and 7–10, comparing morphological venous changes. A multicenter prospective observational study will follow. Patients aged ≥18 years of any gender …