302 resultados para Hemodinàmica
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Fisiopatologia em Clínica Médica - FMB
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Pós-graduação em Enfermagem (mestrado profissional) - FMB
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Biotecnologia Animal - FMVZ
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The effort test can be used to assess functional capacity, clinical hemodynamic and metabolic response at the effort, the risk of postoperative pulmonary complications and to assess the response of patients with lung diseases submitted to physiotherapy treatment. Among the stress tests we highlight the Six Minute Test Walk (6 MWT) and Stair Climbing Test (SCT), because they are easy to use and low cost. Especially the SCT is widely used in patients preoperatively. Objective: To compare the effects of six minute walk test and stair climbing test under the hemodynamic and oxygenation in healthy adults. Methods: We conducted a study with healthy subjects above 50 years. The fi rst performed was 6 MWT in quick step with encouragement, in a plan corridor of 30 meters, where the shade was determined the distance walked in 6 minutes, after 6 MWT was performed de SCT with encouragement, on a ladder in shade, consists of 44 steps, with 4 bids and bid by 11 steps, each step measured 16 cm in a total of 7.04 m of height, where the rise time was clocked. Before and after the two tests were measured respiratory rate, pulse, blood pressure and oxygen saturation. Results: We evaluated 21 patients with age 59.6 ± 5.4 years, 5 men and 16 women. The average distance covered on the 6MWT was 496.4 ± 102.2 meters and the average time in SCT 22.6 ± 5.4 seconds. The variables pulse, respiratory rate, systolic blood pressure and Borg scale presented a signifi - cant increase after the tests, however the variables oxygen saturation and diastolic blood pressure did not change signifi cantly. Conclusion: The variables pulse, respiratory rate, systolic blood pressure and Borg scale tests increased after six-minute walk test and stair climbing test but with greater signifi cance after the stair climbing test. Oxygen saturation and diastolic blood pressure did not change signifi cantly after the tests.
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The Doppler ultrasound allows the assessment of blood flow and the differentiate vessels according to each spectral pattern, location and organ that irrigate, helping the examinations and disease diagnosis. The main methods used are Pulsed Doppler, Color Doppler and Power Doppler. In Brazil veterinary medicine, it shows progress since 1990, but its use is limited by the equipment high cost, the need for operator experience and patient cooperation. There are studies in obstetrics and reproduction of dogs and cats, such as evaluation of the testicular vasculature, including the use of contrast material, and attempts to evaluate prostate in healthy dogs or pathological conditions (cancer and testicular torsion , orchitis and benign prostatic hyperplasia; estrous cycle monitoring, evaluation of irrigation in follicles and corpus luteum, uterus and breasts (mammary tumors) in bitches; monitoring pregnancy from the assessment of maternal, fetal and placental hemodynamics, both in dogs as in cats, and aspirations for early detection of pregnancy in dogs. However, new studies are still required, given the lack of these species, especially cats
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Nitric oxide (NO) is a free radical gas, inorganic, which has seven electrons of nitrogen and oxygen eight, possessing an unpaired electron. This radical is produced from L-arginine by a reaction mediated by the enzyme NO synthase. NO it is about a radical of who acts abundant on a variety of biological processes, particularly when produced by endothelial cells plays a significant role in cardiovascular control, as a modulator of peripheral vascular resistance and platelet aggregation. This free radical has also a neurotransmitter and mediator of the immune system. NO kidney function has been considered in many physiological functions such as: (a) regulation of hemodynamics and glomerular function tubuloglomerular, (b) participation in pressure natriuresis (c) maintaining medullar perfusion (d) inhibiting sodium reabsorption tubular, and (e) acting as a modulator of the activity of the sympathetic nervous system. Given these functions, the occurrence of its deficiency is associated with chronic kidney disease (CKD) in vasoconstriction and consequently glomerular hypertension, high blood pressure (HBP), proteinuria and progression of renal dysfunction. This work has the scope to describe the role of NO in renal physiology and pathophysiology of CKD.