Sökning: "venous flow"

Visar resultat 31 - 35 av 99 avhandlingar innehållade orden venous flow.

1. 31. Cardiovascular and sympatho-adrenal responses to mental stress with special reference to the regulation of human forearm blood flow

   Författare :Madeleine Lindqvist; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :adrenaline; axillary blockade; beta-receptor blockader; calcium channel blockers; cholinergic blockingagents; felodipine; hypertension-primary; noradrenaline; skeletal muscle; sodium nitroprusside; stress-psychologicai; vascular resistance;

   Sammanfattning : The cardiovascular and sympatho-adrenal responses to a standardized mental stress test (Stroop's colour word conflict test CWT) were studied in 63 healthy and 11 hypertensive men by intraarterial pressure measurements, forearm blood flow by occlusion plethysmography and noradrenaline (NA) and adrenaline (ADR) determinations in arterial and venous plasma. One study included central hemodynamics by right heart catheterization and NA turnover by an isotope dilution method, permitting studies of NA kinetics in the whole body and in a regional vascular bed (the forearm) in hypertensive patients and age-matched controls. LÄS MER

3. 32. Monitoring of Splanchnic Regional Perfusion : An Experimental Study of New Application and Validation

   Författare :Itaru Koga; Lennart Christiansson; Lars Wiklund; Björn Biber; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anaesthesiology and intensive care; Splanchnic circulation; Regional ischemia; Hepatic artery buffer response; Air tonometry; Intraperitoneal; Reflectance pulse oximetry; Hepatic venous oxygen saturation; Lactate; PCO2 gap; Anestesiologi och intensivvård; Anaesthetics and intensive care; Anestesiologi och intensivvård;

   Sammanfattning : Systemic infection, major surgery, trauma and many other causes can lead to impaired organ function. Compensated shock is not detected by global hemodynamic and oxygen measurements, as they take no account for regional variations. LÄS MER

4. 33. Studies on Retinal Circulation in Experimental Animals, Healthy Human Eyes and Eyes with Diabetic Retinopathy

   Författare :Lidija Tomić; Albert Alm; Einar Stefánsson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal Circulation; Labelled Microsphere Technique; Monkeys; Blue Field Simulation; Macular Leukocyte Velocity; Fluorescein Angiogram; Mean Transit Time; Impulse-Response Technique; Arterio-Venous Passage Time; Vessel Diameter; Oxygen; Carbin Dioxide; Diabetes Retinopathy; Ophtalmology; Oftalmologi;

   Sammanfattning : The retina is a highly metabolically active tissue with large demands on the supply of nutrients. Disorders affecting the retina often include some vasculopathy with an impact on retinal circulation. LÄS MER

5. 34. Patellofemoral pain syndrome : clinical and pathophysiological considerations

   Författare :Jan Näslund; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Patellofemoral pain syndrome; pain mechanism; bone blood flow; ischemia;

   Sammanfattning : Patellofemoral pain syndrome (PFPS) is one of the most common musculoskeletal disorders and is reported to affect 15%-33% of the active adult population and 21%-45% of adolescents. Among adolescents, the incidence is reported to be higher for girls. LÄS MER

7. 35. Aspects of bleeding complications and hemostasis at central line insertion and mild induced hypothermia

   Författare :Thomas Kander; Anestesiologi och intensivvård; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Central venous catheter. Coagulation. Bleeding complications. Platelets. Mild induced hypothermia. Point of care coagulation tests. Flow cytometry.;

   Sammanfattning : Bleeding complications range from 0.5 to 1.6% in connection with central venous catheter insertions but are more frequent in patients with bone marrow failure and severe thrombocytopenia. Although supportive evidence is scarce, prophylactic platelet transfusion is sometimes performed in these patients before catheter insertion. LÄS MER