Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20.004
Filtrar
2.
Adv Exp Med Biol ; 1232: 315-322, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31893426

RESUMO

We present an unobtrusive cuff-less sphygmomanometer based on contact-type and optical pulse sensors for continuous and minimally invasive monitoring of blood pressure (BP). We developed a cuff-less sphygmomanometer that utilizes the pulse arrival time (PAT) to estimate continuous BP. To assess its accuracy, we recruited 10 healthy subjects in whom we carried out BP studies using the cuff-less sphygmomanometer compared with a standard cuff-type device in a stationary sitting patient. Preliminary results showed that the mean difference (MD) of estimated systolic blood pressure and diastolic blood pressure were 0.96 ± 9.6 (mean ± SD) mmHg and 1.14 ± 7.5 mmHg, respectively, compared to the control. The corresponding correlation between the estimated BP values and controls were 0.78 for systolic blood pressure (p < 0.01) and 0.69 for diastolic blood pressure (p < 0.01); thus, there were significant correlations. These results suggest that the developed cuff-less sphygmomanometer has the potential for continuous BP monitoring. Finally, we conducted a preliminary study of simultaneous monitoring of cuff-less BP and near-infrared spectroscopy to evaluate the potential for assessment of autonomic nervous system functions during mental stress tasks.


Assuntos
Determinação da Pressão Arterial , Esfigmomanômetros , Adulto , Sistema Nervoso Autônomo/fisiologia , Pressão Sanguínea , Determinação da Pressão Arterial/instrumentação , Eletrocardiografia , Frequência Cardíaca , Humanos , Masculino , Monitorização Fisiológica/instrumentação , Monitorização Fisiológica/normas , Esfigmomanômetros/normas , Adulto Jovem
3.
Anaesthesia ; 75(1): 37-44, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31556454

RESUMO

The inflationary non-invasive blood pressure monitor (iNIBP™) uses a new measurement method, whereby the cuff is slowly inflated whilst simultaneously sensing oscillations, to determine the diastolic blood pressure first and then the systolic pressure. It may measure blood pressure more quickly than the conventional non-invasive blood pressure monitor. We studied 66 patients undergoing general anaesthesia, comparing the time taken to measure the blood pressure between the two monitors at times when there were marked changes (increases or decreases by 30 mmHg or greater) in the systolic blood pressure. The median (IQR) [range]) time was significantly longer for the non-invasive blood pressure monitor (38.8 (31.5-44.7) [18.0-130.0] s) than for the iNIBP (14.6 (13.7-16.4) [11.5-35.5] s), p = 0.001, 95%CI for difference 22-25 s). We also studied 30 volunteers to evaluate the accuracy of the iNIBP, comparing it with the mercury sphygmomanometer. There was good agreement between the two monitors, with a mean difference of 0 (95% limit of agreement -12 to 11) mmHg for the systolic blood pressure. We also compared the degree of pain during cuff inflation between the automated non-invasive blood pressure and iNIBP monitors. Pain was significantly more for the non-invasive blood pressure monitor (22 of 30 volunteers had less pain with the iNIBP). We have shown that the iNIBP measured the blood pressure quicker than the conventional non-invasive blood pressure monitor and the speed of measurement was not significantly affected by marked changes in the blood pressure.


Assuntos
Determinação da Pressão Arterial/instrumentação , Determinação da Pressão Arterial/métodos , Estudos Cross-Over , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Fatores de Tempo
4.
Zhonghua Yu Fang Yi Xue Za Zhi ; 53(12): 1299-1304, 2019 Dec 06.
Artigo em Chinês | MEDLINE | ID: mdl-31795590

RESUMO

The national health industry standard (WS/T 610-2018), 'the reference of screening for elevated blood pressure among children and adolescents aged 7-to 18-years-old', plays a significant role in the standardization of the blood pressure evaluation, the early detection of high blood pressure, and the early intervention of hypertension and other chronic non-communicable diseases among Chinese children and adolescents. This standard gives screening thresholds for blood pressure assessment of children and adolescents in different genders, ages, and heights. Given the complexity of applying this standard, it is error-prone and less efficient to evaluate blood pressure one by one or program this procedure. Therefore, this study provides a SPSS package based on the standard for researchers to download and use, combined with specific cases to guide the use of this package to evaluate the blood pressure of children and adolescents step by step, which could empower researchers to accurately and efficiently conduct blood pressure screening for children and adolescents in China.


Assuntos
Grupo com Ancestrais do Continente Asiático/estatística & dados numéricos , Pressão Sanguínea/fisiologia , Hipertensão/diagnóstico , Adolescente , Determinação da Pressão Arterial , Criança , China/epidemiologia , Feminino , Humanos , Hipertensão/epidemiologia , Masculino , Prevalência
5.
Bratisl Lek Listy ; 120(12): 894-898, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31855047

RESUMO

OBJECTIVES: Central systolic blood pressure (CSBP) is the pressure in the root of aorta, which directly influences organs such as brain, heart and kidneys and is related to organ damage. Its value increases with the aortic stiffness. The aim of this study was to analyze the relationships of CSBP to aortic stiffness parameters. METHODS: Central blood pressure (BP) and related parameters were measured by Arteriograph, working based on oscillometric principle, using pulse wave analysis (PWA) approach. We examined 123 patients (69 females, 54 males) with a primary hypertension. RESULTS: Using a linear correlation analysis, we found that CSBP was correlated to aortic pulse wave velocity (PWV), aortic and brachial pulse pressure (PP), aortic augmentation index, return time of reflected pressure wave (RT) and aortic and brachial augmentation indexes. Multivariate analysis defines the aortic pulse pressure (PPao) as the most powerful parameter influencing CSBP. By an individual analysis of BP in each patient separately, we defined two different types of central hemodynamics; those with a higher CSBP than brachial SBP occur in stiffer aorta. CONCLUSION: The CSBP increases with aortic PP, the most powerful stiffness parameter of aorta. Higher CSBP than brachial SBP usually accompanies a stiffer aorta (Tab. 5, Ref. 19).


Assuntos
Pressão Sanguínea/fisiologia , Análise de Onda de Pulso/métodos , Rigidez Vascular , Pressão Arterial , Determinação da Pressão Arterial , Feminino , Humanos , Masculino
6.
Kardiologiia ; 59(11): 56-65, 2019 Dec 11.
Artigo em Russo | MEDLINE | ID: mdl-31849300

RESUMO

Blood pressure variability (BPV) is the fluctuations of blood pressure over a certain period of time under the influence of various factors. The issue of increased BPV is of particular clinical importance due to high predictive value of this parameter as a risk factor for fatal and non-fatal cardiovascular, cerebrovascular and renal events. It is proved that in the BPV increasing, the key role is played by impairments in arterial baroreflexes, which, in turn, are mediated by increased vascular stiffness, impact of angiotensin II and the sympathetic nervous system, endothelial dysfunction, nitric oxide deficiency and aging, including the vascular aging. Antihypertensive drugs that targeting largest amount of pathophysiological mechanisms in BPV increasing have a most advantages in correcting excessive pressure fluctuations. In this regard such drugs are perindopril and amlodipine, which can eliminate almost the entire spectrum of increased BPV causes and, therefore, optimally reduce the cardiovascular risk.


Assuntos
Anti-Hipertensivos/uso terapêutico , Hipertensão , Pressão Sanguínea , Determinação da Pressão Arterial , Humanos , Hipertensão/tratamento farmacológico
7.
Wei Sheng Yan Jiu ; 48(6): 913-918, 2019 Nov.
Artigo em Chinês | MEDLINE | ID: mdl-31875815

RESUMO

OBJECTIVE: To describe the hypertension awareness, treatment and control among adults in China in 2010-2012. METHODS: Data was from the China Nutrition and Health Surveillance in 2010-2012. A stratified multistage cluster sampling was used from 31 provinces, autonomous regions, and municipalities and selected 150 districts/counties. The sample was adults aged 18 and over selected through the method of Probability Proportion to Size(PPS). The mercury sphygmomanometer was used to measure the blood pressure. Each person had three measurements. The questionnaire was used to collect the information of hypertension awareness and control. RESULTS: The sample participants were 120 428 in 2010-2012. Among adults with hypertension, 46. 5%were aware of their hypertension, 41. 1% reported taking hypertension medicine in the last two weeks, and 13. 8% controlled the blood pressure. It was higher for hypertension awareness, treatment and control in women(49. 5%, 44. 2% and 14. 6%) than those of men(43. 0%, 37. 4% and 12. 9%). The three rates were increased with age. The prevalence of control was 33. 6% among the treated hypertensive individuals. It was higher for men and the rate was decreased with age. It was higher for hypertension awareness, treatment and control among hypertension and control among treated hypertensive participates in urban area(52. 7%, 47. 9%, 17. 9% and 37. 3%) than those in rural area(39. 5%, 33. 4%, 9. 2% and 27. 6%). The rates of overall, gender, and age groups were decreased in large city, medium and small city, general county, and poor county. CONCLUSION: The prevalence of hypertension awareness, treatment and control among hypertension and control among treated hypertensive participates among Chinese adults was increased in 2010-2012. But the rates were still keep a low level. The region and age differences need pay attention.


Assuntos
Hipertensão , Adolescente , Adulto , Anti-Hipertensivos , Pressão Sanguínea , Determinação da Pressão Arterial , China , Cidades , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Prevalência , Adulto Jovem
8.
Lakartidningen ; 1162019 Dec 23.
Artigo em Sueco | MEDLINE | ID: mdl-31873937

RESUMO

Night-time blood pressure is an independent prognostic marker for cardiovascular disease. Evening dosing of antihypertensive agents can reduce night-time blood pressure and restore night-time blood pressure dipping pattern. In the Hygia Chronotherapy Trial, evening dosing of antihypertensive agents was compared to morning dosing, with dramatic effects on cardiovascular events and total mortality. We review possible limitations of the Hygia trial, including aspects of randomization, allocation concealment, outcome reporting and imbalance between groups. Based on these limitations, the trial should be interpreted with caution and future studies should be awaited before changing clinical practice.


Assuntos
Anti-Hipertensivos , Hipertensão , Anti-Hipertensivos/administração & dosagem , Pressão Sanguínea , Determinação da Pressão Arterial , Ensaios Clínicos como Assunto , Relação Dose-Resposta a Droga , Humanos , Hipertensão/tratamento farmacológico
9.
Presse Med ; 48(11 Pt 1): 1269-1283, 2019 Nov.
Artigo em Francês | MEDLINE | ID: mdl-31757732

RESUMO

Hypertension is a major risk factor for cardiovascular diseases. Because of the high frequency of hormonal contraceptives use, assessing their side effects is an important public health issue. In this perspective, we conducted a review of the risk of hypertension associated with the use of hormonal contraceptives, either combined estrogen-progestin or only progestin. The use of combined hormonal contraceptives, regardless of its type and route of administration, is associated with a slight increase in blood pressure, both systolic and diastolic blood pressures. The frequency of onset of hypertension in women who use combined hormonal contraception is between 0.6% and 8.5%. Progestin-only contraception seems safe with respect to the risk of hypertension. It is therefore important to remember that the use of combined hormonal contraception is contra-indicated in hypertensive women, even well controlled. Finally, we propose a prescription assistance algorithm according to the recommendations of an expert panel. It should be remembered that taking blood pressure at each contraceptive consultation (initial and follow-up) is essential.


Assuntos
Anticoncepção/efeitos adversos , Anticoncepcionais Orais Combinados/efeitos adversos , Anticoncepcionais Orais Hormonais/efeitos adversos , Hipertensão/induzido quimicamente , Progestinas/efeitos adversos , Adolescente , Adulto , Pressão Sanguínea/efeitos dos fármacos , Determinação da Pressão Arterial , Feminino , Humanos , Pessoa de Meia-Idade , Progestinas/administração & dosagem , Fatores de Risco , Adulto Jovem
13.
Presse Med ; 48(11 Pt 1): 1319-1328, 2019 Nov.
Artigo em Francês | MEDLINE | ID: mdl-31732365

RESUMO

Since 2016, the French Society of Hypertension has warned about the decline in the management of high blood pressure in France: stagnation, or even decreased number of people who know their blood pressure level, take a treatment and are controlled. These results are lower than those observed in many other countries. Blood pressure is measured with an old method in the doctor's office. Accepted, simple and cost-effective, this method is currently unavoidable for reasons of feasibility and social habit. It has been used in observational and intervention studies that are the basis of the medical reasoning for screening, treatment and drug control of hypertension. In practice, it is too often poorly applied and unpredictable. It is now necessary to measure blood pressure in mmHg using a validated oscillometric automatic device coupled to a specific upper arm cuff adapted to the arm circumferences for the diagnosis and monitoring of high blood pressure in the doctor's office and at home. The auscultatoric measurement is only recommended if any doubt about the reliability of the electronic measurement. Blood pressure measurement is basically performed on both arms to detect asymmetry and then on the arm with the highest blood pressure. It is performed in sitting or lying position after a few minutes of rest without speaking and without having smoked and then in standing position to diagnose orthostatic hypotension, especially in elderly, diabetic and multi-medicated subjects. The blood pressure measurement during the consultation must be repeated and include at least 3 consecutive measurements at one minute intervals. The average of the last 2 measurements determines the blood pressure level. It is recommended to perform BP measurements outside the medical environment for the diagnosis and monitoring of hypertension; Home BP measurement is preferred to ambulatory blood pressure measurement for practical reasons unless otherwise specified. The home blood pressure measurement should include three measurements in the morning at breakfast and three measurements in the evening before bedtime at one minute intervals for at least three days. Prior training must be provided. In treated hypertensive patients, a masked hypertension should be considered as an uncontrolled hypertension and antihypertensive therapy adapted accordingly. The measurement of central BP pressure (aorta) should be limited to clinical research.


Assuntos
Determinação da Pressão Arterial/normas , Consenso , Determinação da Pressão Arterial/instrumentação , Determinação da Pressão Arterial/métodos , Monitorização Ambulatorial da Pressão Arterial , França , Humanos , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Sociedades Médicas , Fatores de Tempo
14.
Presse Med ; 48(11 Pt 1): 1288-1294, 2019 Nov.
Artigo em Francês | MEDLINE | ID: mdl-31727484

RESUMO

Menopause is associated with a significant increase in arterial and metabolic risk. Systolic hypertension is common in post-menopausal women. Measurement of blood pressure should be repeated systematically at each visit. Ambulatory blood pressure measurements should be encouraged, especially to detect nocturnal hypertension and to prevent more efficiently women at risk. Self-testing of hypertension by home blood pressure should be encouraged at menopause. Antihypertensive treatment should be initiated after ambulatory blood pressure monitoring in association with reinforced lifestyle. Furthermore, global level of cardiovascular risk should take into account before starting antihypertensive treatment. There are no women specificities in the choice of the initial treatment except thiazide diuretics which should be preferred in osteoporotic women. In hypertensive women and with disabling climacteric symptoms under 60 and within 10 years after the onset of menopause, post-menopausal hormone therapy can be offered in absence of arterial or venous contraindications. A preliminary discussion between gynecologist, cardiologist and general practionner is necessary before deciding to treat a post-menopausal women for her climacteric symptoms. A clear information on the benefit-risk balance of post-menopausal hormone therapy should be given to the women. The information should be recorded in the medical file. Cooperation between cardiologists, gynecologists and general practionners should be promoted in France, to optimize the care pathways in these women at risk and to improve medical practices.


Assuntos
Hipertensão , Pós-Menopausa , Fatores Etários , Anti-Hipertensivos/uso terapêutico , Determinação da Pressão Arterial/métodos , Cardiologia , Feminino , Ginecologia , Humanos , Hipertensão/complicações , Hipertensão/diagnóstico , Hipertensão/prevenção & controle , Hipertensão/terapia , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Medicina de Precisão , Autocuidado , Fatores de Tempo
18.
Rev Lat Am Enfermagem ; 27: e3179, 2019.
Artigo em Português, Inglês, Espanhol | MEDLINE | ID: mdl-31596414

RESUMO

OBJECTIVE: to evaluate the effect of an educational program on blood pressure recording for nursing professionals in relation to theoretical knowledge and the quality of these records. METHOD: quasi-experimental study conducted in a hospital service located in the city of São Paulo. The theoretical knowledge of 101 professionals was measured using a validated questionnaire before and after the educational intervention; the quality of blood pressure records was evaluated using a validated form which was applied to 354 records in the pre-intervention period and 288 in the post-intervention period. The educational program was based on active teaching-learning methodologies and consisted of two strategies: expository/dialogue class and a board game. The Wilcoxon, Mann-Whitney, Fisher and Chi-Square tests were used for comparisons, adopting a level of significance of α=0.05. RESULTS: the median of the professionals' scores increased from 19 to 22 points in the post-intervention period (p<0.001). There was an improvement in the quality of the blood pressure recordings regarding the variables: cuff size (p<0.001), arm used in the procedure (p<0.001) and patient position (p<0.001). CONCLUSION: the educational program showed positive results in the promotion of knowledge among nursing professionals and in the improvement of the quality of blood pressure recording.


Assuntos
Determinação da Pressão Arterial/enfermagem , Educação Continuada em Enfermagem/métodos , Recursos Humanos de Enfermagem no Hospital/educação , Adulto , Pressão Sanguínea , Determinação da Pressão Arterial/instrumentação , Brasil , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Recursos Humanos de Enfermagem no Hospital/normas , Melhoria de Qualidade , Inquéritos e Questionários
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA