RESUMO
Hypertension Canada provides annually updated, evidence-based guidelines for the diagnosis, assessment, prevention, and treatment of hypertension. This year, we introduce 10 new guidelines. Three previous guidelines have been revised and 5 have been removed. Previous age and frailty distinctions have been removed as considerations for when to initiate antihypertensive therapy. In the presence of macrovascular target organ damage, or in those with independent cardiovascular risk factors, antihypertensive therapy should be considered for all individuals with elevated average systolic nonautomated office blood pressure (non-AOBP) readings ≥ 140 mm Hg. For individuals with diastolic hypertension (with or without systolic hypertension), fixed-dose single-pill combinations are now recommended as an initial treatment option. Preference is given to pills containing an angiotensin-converting enzyme inhibitor or angiotensin receptor blocker in combination with either a calcium channel blocker or diuretic. Whenever a diuretic is selected as monotherapy, longer-acting agents are preferred. In patients with established ischemic heart disease, caution should be exercised in lowering diastolic non-AOBP to ≤ 60 mm Hg, especially in the presence of left ventricular hypertrophy. After a hemorrhagic stroke, in the first 24 hours, systolic non-AOBP lowering to < 140 mm Hg is not recommended. Finally, guidance is now provided for screening, initial diagnosis, assessment, and treatment of renovascular hypertension arising from fibromuscular dysplasia. The specific evidence and rationale underlying each of these guidelines are discussed.
Assuntos
Anti-Hipertensivos , Determinação da Pressão Arterial/métodos , Diuréticos , Hipertensão , Adulto , Anti-Hipertensivos/classificação , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/efeitos dos fármacos , Canadá/epidemiologia , Comorbidade , Diuréticos/classificação , Diuréticos/uso terapêutico , Feminino , Humanos , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Hipertensão/prevenção & controle , Masculino , Conduta do Tratamento Medicamentoso/normas , Pessoa de Meia-Idade , Medição de Risco/métodosRESUMO
Hypertension Canada's Canadian Hypertension Education Program Guidelines Task Force provides annually updated, evidence-based recommendations to guide the diagnosis, assessment, prevention, and treatment of hypertension. This year, we present 4 new recommendations, as well as revisions to 2 previous recommendations. In the diagnosis and assessment of hypertension, automated office blood pressure, taken without patient-health provider interaction, is now recommended as the preferred method of measuring in-office blood pressure. Also, although a serum lipid panel remains part of the routine laboratory testing for patients with hypertension, fasting and nonfasting collections are now considered acceptable. For individuals with secondary hypertension arising from primary hyperaldosteronism, adrenal vein sampling is recommended for those who are candidates for potential adrenalectomy. With respect to the treatment of hypertension, a new recommendation that has been added is for increasing dietary potassium to reduce blood pressure in those who are not at high risk for hyperkalemia. Furthermore, in selected high-risk patients, intensive blood pressure reduction to a target systolic blood pressure ≤ 120 mm Hg should be considered to decrease the risk of cardiovascular events. Finally, in hypertensive individuals with uncomplicated, stable angina pectoris, either a ß-blocker or calcium channel blocker may be considered for initial therapy. The specific evidence and rationale underlying each of these recommendations are discussed. Hypertension Canada's Canadian Hypertension Education Program Guidelines Task Force will continue to provide annual updates.
Assuntos
Anti-Hipertensivos , Determinação da Pressão Arterial , Hipertensão , Anti-Hipertensivos/uso terapêutico , Determinação da Pressão Arterial/métodos , Canadá , Medicina Baseada em Evidências , Educação em Saúde , Humanos , Hiperaldosteronismo/tratamento farmacológico , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/prevenção & controle , Medição de Risco , Fatores de RiscoAssuntos
Serviço Hospitalar de Emergência , Ataque Isquêmico Transitório/diagnóstico , Ataque Isquêmico Transitório/terapia , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/terapia , Canadá , Diagnóstico Precoce , Intervenção Médica Precoce , Humanos , Índice de Gravidade de Doença , Fatores de TempoRESUMO
The Canadian Hypertension Education Program reviews the hypertension literature annually and provides detailed recommendations regarding hypertension diagnosis, assessment, prevention, and treatment. This report provides the updated evidence-based recommendations for 2015. This year, 4 new recommendations were added and 2 existing recommendations were modified. A revised algorithm for the diagnosis of hypertension is presented. Two major changes are proposed: (1) measurement using validated electronic (oscillometric) upper arm devices is preferred over auscultation for accurate office blood pressure measurement; (2) if the visit 1 mean blood pressure is increased but < 180/110 mm Hg, out-of-office blood pressure measurements using ambulatory blood pressure monitoring (preferably) or home blood pressure monitoring should be performed before visit 2 to rule out white coat hypertension, for which pharmacologic treatment is not recommended. A standardized ambulatory blood pressure monitoring protocol and an update on automated office blood pressure are also presented. Several other recommendations on accurate measurement of blood pressure and criteria for diagnosis of hypertension have been reorganized. Two other new recommendations refer to smoking cessation: (1) tobacco use status should be updated regularly and advice to quit smoking should be provided; and (2) advice in combination with pharmacotherapy for smoking cessation should be offered to all smokers. The following recommendations were modified: (1) renal artery stenosis should be primarily managed medically; and (2) renal artery angioplasty and stenting could be considered for patients with renal artery stenosis and complicated, uncontrolled hypertension. The rationale for these recommendation changes is discussed.
Assuntos
Determinação da Pressão Arterial/normas , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Guias de Prática Clínica como Assunto , Prevenção Primária/normas , Anti-Hipertensivos/uso terapêutico , Monitorização Ambulatorial da Pressão Arterial/normas , Canadá , Educação Médica Continuada/normas , Feminino , Humanos , Hipertensão/prevenção & controle , Masculino , Medição de RiscoRESUMO
Herein, updated evidence-based recommendations for the diagnosis, assessment, prevention, and treatment of hypertension in Canadian adults are detailed. For 2014, 3 existing recommendations were modified and 2 new recommendations were added. The following recommendations were modified: (1) the recommended sodium intake threshold was changed from ≤ 1500 mg (3.75 g of salt) to approximately 2000 mg (5 g of salt) per day; (2) a pharmacotherapy treatment initiation systolic blood pressure threshold of ≥ 160 mm Hg was added in very elderly (age ≥ 80 years) patients who do not have diabetes or target organ damage (systolic blood pressure target in this population remains at < 150 mm Hg); and (3) the target population recommended to receive low-dose acetylsalicylic acid therapy for primary prevention was narrowed from all patients with controlled hypertension to only those ≥ 50 years of age. The 2 new recommendations are: (1) advice to be cautious when lowering systolic blood pressure to target levels in patients with established coronary artery disease if diastolic blood pressure is ≤ 60 mm Hg because of concerns that myocardial ischemia might be exacerbated; and (2) the addition of glycated hemoglobin (A1c) in the diagnostic work-up of patients with newly diagnosed hypertension. The rationale for these recommendation changes is discussed. In addition, emerging data on blood pressure targets in stroke patients are discussed; these data did not lead to recommendation changes at this time. The Canadian Hypertension Education Program recommendations will continue to be updated annually.
Assuntos
Anti-Hipertensivos/uso terapêutico , Determinação da Pressão Arterial/normas , Promoção da Saúde/organização & administração , Hipertensão , Educação de Pacientes como Assunto , Guias de Prática Clínica como Assunto , Avaliação de Programas e Projetos de Saúde , Pressão Sanguínea , Canadá , Humanos , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/prevenção & controle , Estilo de Vida , PrognósticoRESUMO
BACKGROUND: The incidence of strokes in industrialized nations is on the rise, particularly in the older population. In Canada, a minority of individuals who have had a stroke actually receive intensive rehabilitation because most stroke patients do not have access to services or because their motor recovery was judged adequate to return home. Thus, there is a considerable need to organize home-based rehabilitation services for everyone who has had a stroke. To meet this demand, telerehabilitation, particularly from a service center to the patient's home, is a promising alternative approach that can help improve access to rehabilitation services once patients are discharged home. METHODS/DESIGN: This non-inferiority study will include patients who have returned home post-stroke without requiring intensive rehabilitation. To be included in the study, participants will: 1) not be referred to an Intensive Functional Rehabilitation Unit, 2) have a Rankin score of 2 or 3, and 3) have a balance problem (Berg Balance Scale score between 46 and 54). Participants will be randomly assigned to either the teletreatment group or the home visits group. Except for the delivery mode, the intervention will be the same for both groups, that is, a personalized Tai Chi-based exercise program conducted by a trained physiotherapist (45-minute session twice a week for eight consecutive weeks). The main objective of this research is to test the non-inferiority of a Tai Chi-based exercise program provided via telerehabilitation compared to the same program provided in person at home in terms of effectiveness for retraining balance in individuals who have had a stroke but do not require intensive functional rehabilitation. The main outcome of this study is balance and mobility measured with the Community Balance and Mobility Scale. Secondary outcomes include physical and psychological capacities related to balance and mobility, participants' quality of life, satisfaction with services received, and cost-effectiveness associated with the provision of both types of services. STUDY/TRIAL REGISTRATION: ClinicalTrials.gov: NCT01848080.
Assuntos
Terapia por Exercício , Serviços Hospitalares de Assistência Domiciliar , Visita Domiciliar , Projetos de Pesquisa , Reabilitação do Acidente Vascular Cerebral , Tai Chi Chuan , Telemedicina , Canadá , Protocolos Clínicos , Análise Custo-Benefício , Avaliação da Deficiência , Terapia por Exercício/economia , Custos de Cuidados de Saúde , Serviços Hospitalares de Assistência Domiciliar/economia , Visita Domiciliar/economia , Humanos , Atividade Motora , Satisfação do Paciente , Equilíbrio Postural , Qualidade de Vida , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/economia , Acidente Vascular Cerebral/fisiopatologia , Tai Chi Chuan/economia , Telemedicina/economia , Fatores de Tempo , Resultado do TratamentoRESUMO
BACKGROUND/AIMS: Cognitive impairment is frequent in cerebrovascular disease but often remains undetected. The Montreal Cognitive Assessment (MoCA) has been proposed in this context. Our aim was to evaluate the MoCA and its subtests in cerebrovascular disease. METHODS: We assessed 386 consecutive patients with minor stroke (National Institutes of Health Stroke Score <4) or transient ischemic attack at 3 months. The MoCA and the modified Rankin Scale (mRS) were administered. Computed tomography (CT) scans were assessed for stroke and white matter changes. An unfavorable functional outcome was defined as mRS >1. RESULTS: The prevalence of cognitive impairment (cutoff of 26) was 55% using the MoCA and 13% using the MMSE. In a multivariate analysis, MoCA <26 was associated with the outcome (OR 3.00, CI 1.78-5.03), as were remote lacunar stroke on CT and white matter changes of at least moderate severity. Five subtests (5-word recall, word list generation, trail-making, abstract reasoning and cube copy) formed an optimal short MoCA with 6/10 or less showing a sensitivity of 91% and a specificity of 83%. CONCLUSION: This study extends the utility of the MoCA to milder forms of cerebrovascular disease. The MoCA is associated with the 3-month functional outcome. Five subtests may constitute an optimal brief tool in vascular cognitive impairment.
Assuntos
Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/psicologia , Ataque Isquêmico Transitório/psicologia , Testes Neuropsicológicos , Acidente Vascular Cerebral/psicologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Transtornos Cerebrovasculares/complicações , Transtornos Cerebrovasculares/psicologia , Cognição/fisiologia , Transtornos Cognitivos/etiologia , Escolaridade , Feminino , Humanos , Ataque Isquêmico Transitório/classificação , Ataque Isquêmico Transitório/complicações , Masculino , Rememoração Mental , Entrevista Psiquiátrica Padronizada , Neuroimagem , Estudos Prospectivos , Recuperação de Função Fisiológica , Fatores Socioeconômicos , Acidente Vascular Cerebral/classificação , Acidente Vascular Cerebral/complicações , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
We updated the evidence-based recommendations for the diagnosis, assessment, prevention, and treatment of hypertension in adults for 2013. This year's update includes 2 new recommendations. First, among nonhypertensive or stage 1 hypertensive individuals, the use of resistance or weight training exercise does not adversely influence blood pressure (BP) (Grade D). Thus, such patients need not avoid this type of exercise for fear of increasing BP. Second, and separately, for very elderly patients with isolated systolic hypertension (age 80 years or older), the target for systolic BP should be < 150 mm Hg (Grade C) rather than < 140 mm Hg as recommended for younger patients. We also discuss 2 additional topics at length (the pharmacological treatment of mild hypertension and the possibility of a diastolic J curve in hypertensive patients with coronary artery disease). In light of several methodological limitations, a recent systematic review of 4 trials in patients with stage 1 uncomplicated hypertension did not lead to changes in management recommendations. In addition, because of a lack of prospective randomized data assessing diastolic BP thresholds in patients with coronary artery disease and hypertension, no recommendation to set a selective diastolic cut point for such patients could be affirmed. However, both of these issues will be examined on an ongoing basis, in particular as new evidence emerges.
Assuntos
Envelhecimento/fisiologia , Determinação da Pressão Arterial , Pressão Sanguínea/fisiologia , Doenças Cardiovasculares/prevenção & controle , Exercício Físico/fisiologia , Hipertensão/diagnóstico , Adulto , Anti-Hipertensivos/uso terapêutico , Canadá , Educação em Saúde , Humanos , Hipertensão/tratamento farmacológico , Medição de RiscoRESUMO
We updated the evidence-based recommendations for the diagnosis, assessment, prevention, and treatment of hypertension in adults for 2012. The new recommendations are: (1) use of home blood pressure monitoring to confirm a diagnosis of white coat syndrome; (2) mineralocorticoid receptor antagonists may be used in selected patients with hypertension and systolic heart failure; (3) a history of atrial fibrillation in patients with hypertension should not be a factor in deciding to prescribe an angiotensin-receptor blocker for the treatment of hypertension; and (4) the blood pressure target for patients with nondiabetic chronic kidney disease has now been changed to < 140/90 mm Hg from < 130/80 mm Hg. We also reviewed the recent evidence on blood pressure targets for patients with hypertension and diabetes and continue to recommend a blood pressure target of less than 130/80 mm Hg.
Assuntos
Anti-Hipertensivos/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Hipertensão/diagnóstico , Hipertensão/terapia , Guias de Prática Clínica como Assunto/normas , Adulto , Idoso , Determinação da Pressão Arterial/métodos , Canadá , Doenças Cardiovasculares/etiologia , Educação Médica Continuada/normas , Medicina Baseada em Evidências/normas , Feminino , Educação em Saúde/normas , Humanos , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Monitorização Fisiológica/métodos , Prognóstico , Medição de Risco , Resultado do TratamentoRESUMO
We updated the evidence-based recommendations for the diagnosis, assessment, prevention, and treatment of hypertension in adults for 2011. The major guideline changes this year are: (1) a recommendation was made for using comparative risk analogies when communicating a patient's cardiovascular risk; (2) diagnostic testing issues for renal artery stenosis were discussed; (3) recommendations were added for the management of hypertension during the acute phase of stroke; (4) people with hypertension and diabetes are now considered high risk for cardiovascular events if they have elevated urinary albumin excretion, overt kidney disease, cardiovascular disease, or the presence of other cardiovascular risk factors; (5) the combination of an angiotensin-converting enzyme (ACE) inhibitor and a dihydropyridine calcium channel blocker (CCB) is preferred over the combination of an ACE inhibitor and a thiazide diuretic in persons with diabetes and hypertension; and (6) a recommendation was made to coordinate with pharmacists to improve antihypertensive medication adherence. We also discussed the recent analyses that examined the association between angiotensin II receptor blockers (ARBs) and cancer.
Assuntos
Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Adulto , Anti-Hipertensivos/uso terapêutico , Determinação da Pressão Arterial , Canadá , Educação em Saúde , Humanos , Medição de RiscoRESUMO
BACKGROUND AND PURPOSE: Cerebral microhemorrhages (MHs) are common among patients presenting with acute ischemic stroke and may predict both subsequent ischemic and hemorrhagic strokes. METHODS: We prospectively studied patients with and without MHs presenting within 12 hours of their ischemic stroke or transient ischemic attack (TIA). A magnetic resonance (MR) scan was performed within 24 hours of symptom(s) onset. The primary outcome was disabling or fatal stroke at 18 months. RESULTS: An MR scan was done in 236 patients with acute ischemic stroke or TIA. Forty-five (19.1%) patients had an MH on a baseline MR scan. Patients with MHs were 2.8x (10.8% versus 4.0%; P=0.036) more likely to have a subsequent disabling or fatal stroke than patients without an MH. The risk of symptomatic intracerebral hemorrhage was not statistically significant among MH and non-MH patients (3.3% versus 0.8%; P=0.31). CONCLUSIONS: The presence of cerebral MH(s) in patients with acute ischemic stroke or TIA predicts recurrent disabling and fatal strokes. This risk is mainly assumed by recurrent ischemic strokes.