Guías para la Detección, Diagnóstico y Tratamiento de la Hipertensión Arterial

Objectives

The 2009 Costa Rican guideline provides an institutional, evidence-informed framework for the detection, diagnosis, treatment and quality assessment of arterial hypertension across the life course. It seeks to improve hypertension control and reduce cardiovascular morbidity and mortality by standardising care, addressing modifiable risk factors, and adapting international evidence to national conditions.[1][2][3][4]

• Establish quality standards and regulatory guidance for people with risk factors, prehypertension and hypertension across the three levels of care.[5]
• Improve detection through routine, accurate blood-pressure measurement and recording among adults aged over 18, particularly people attending health services and in home settings.[6][2][7]
• Confirm or exclude suspected hypertension through repeated measurements and clinical assessment, while identifying cardiovascular risk, secondary causes, target-organ damage and relevant psychosocial or environmental factors.[8][9][10]
• Achieve blood-pressure control generally below 140/90 mmHg, with lower targets for people with diabetes, chronic kidney disease, ischaemic heart disease, proteinuria or target-organ damage where indicated.[2][4][11]
• Ensure availability of functioning blood-pressure equipment, laboratory examinations and pharmacological treatment, alongside effective referral and counter-referral processes.[2]
• Reduce cardiovascular risk through smoking cessation, healthier diet, weight management, salt and alcohol reduction, regular physical activity and stress management.[12][13][14]
• Strengthen information, education and communication so that people with hypertension and their families can participate actively in treatment decisions, adhere to long-term care and prevent or delay complications.[15][11]
• Provide tailored pathways for pregnancy-related hypertension, children and adolescents, older adults, occupational settings, hypertensive crises and suspected secondary hypertension.[16][17][18][19][20][21]

Implementation

The Costa Rican Social Security Fund leads implementation through a multidisciplinary, three-level care model that combines standardised clinical pathways, preventive counselling, medicine management, referral arrangements, workforce training and guideline-based quality assessment. Development involved institutional clinical and technical groups, with advice from the Pan American Health Organization and participation from the Ministry of Health and other health-sector organisations.[1][22][23][3]

• Apply the guideline as the institutional standard for clinical practice and for assessing the quality of hypertension care across levels of care.[2]
• Train care units and disseminate the guidance, drawing on contributors from hospitals, clinics, regional health areas, nursing, occupational health, specialist services and cooperative health-service organisations.[24][25][2]
• Deliver annual adult blood-pressure detection through community health-assistant home visits, occupational-health checks and trained personnel during health-centre consultations.[7]
• Use standardised measurement procedures, including appropriate preparation, cuff selection, positioning, repeated readings and equipment calibration; use validated automated monitors for repeated day and night measurements, white-coat hypertension assessment and population surveillance where appropriate.[26][27][28]
• Refer adults immediately for medical assessment when blood pressure is at least 180/110 mmHg, or when readings of at least 140/90 mmHg occur with symptoms such as dyspnoea, chest pain, weakness or speech difficulty.[26]
• Conduct diagnostic assessment through history-taking, physical examination, risk-factor assessment, laboratory testing and electrocardiography as indicated, confirming hypertension through assessments on separate occasions.[8][9]
• Match treatment intensity to blood-pressure stage and cardiovascular risk, beginning with lifestyle intervention where appropriate and adding individualised pharmacological treatment, dose adjustment, combination treatment or specialist referral when control is not achieved.[4][14][29]
• Provide dietary counselling based on a Costa Rica-adapted Dietary Approaches to Stop Hypertension pattern, and refer people requiring medical individualisation to nutrition professionals through the referral and counter-referral system.[30][31][32]
• Organise individual education from the first consultation and multidisciplinary groups for people with chronic hypertension, involve family members, encourage home blood-pressure measurement and reinforce lifestyle change at each visit.[15][11]
• Monitor blood pressure, treatment adherence and adverse effects during follow-up, typically reviewing treatment response after two months and extending review intervals once blood-pressure and risk-factor goals are attained.[11][33]
• Maintain accessible treatment records and identify possible non-adherence through missed appointments, failure to collect medicines, unused tablets, unstable control or repeated medicine-related complaints.[34]
• Manage pregnancy-related hypertension through referral from first-level care to specialist obstetric services, with hospital and intensive-care capacity for severe pre-eclampsia or eclampsia and maternal and fetal surveillance according to clinical severity.[35][36][37]
• Measure blood pressure routinely in children older than three years attending consultations, interpret findings using age-, sex- and height-specific percentiles, and use paediatric referral, lifestyle and pharmacological pathways when indicated.[17][38][39][40]

Monitoring & Evaluation

The guideline uses clinical measurement, follow-up and quality assessment to monitor hypertension detection, diagnosis and treatment, but it does not set out a unified programme-level evaluation framework, routine reporting cycle, surveillance protocol, audit process or named accountability structure.[2][3][41]

• Measure and record blood pressure in adults aged over 18, including people attending health services and, where relevant, at home; pursue a general treatment target below 140/90 mmHg.[6][2]
• Use the guideline as the institutional standard for evaluating the quality of hypertension care across levels of care.[2]
• Monitor epidemiological burden through mortality, prevalence and service-quality evidence. Reported sources include the National Statistics and Census Institute’s Statistical Information Unit and the Ministry of Health.[42]In the Greater Metropolitan Area survey, hypertension prevalence was 25.6%, including 16.2% previously identified and 9.4% newly identified cases.[43]
• Track service quality through blood-pressure control and coverage measures. In the 2005 hypertension-care assessment, 61% of cases reached below 140/90 mmHg, compared with 27% among people with diabetes mellitus; national quality-criteria coverage was 67.0%, up from 60.1% in 2004.[44]
• Confirm suspected hypertension through repeated blood-pressure measurements on separate occasions, and use clinical history, examination, laboratory testing, cardiovascular-risk classification and assessment of target-organ damage to guide care.[8][9][10]
• Review treatment response against blood-pressure targets, adherence, adverse effects, comorbidities, organ damage and medicine interactions; intensify treatment where goals are not achieved.[14][29]
• Monitor adherence through treatment records and signs such as unused tablets, missed appointments, failure to collect medicines, fluctuating control or frequent complaints about treatment.[34]
• Provide follow-up at intervals determined by risk and clinical control. Most people are reviewed two months after treatment starts, with longer intervals once blood pressure and risk-factor targets are achieved.[11]
• Apply more stringent clinical targets for specified groups: below 130/80 mmHg for people with diabetes, chronic kidney disease or ischaemic heart disease, and below 120/75 mmHg for proteinuria of at least 1 gram per 24 hours.[11]
• Assure blood-pressure measurement quality through standardised technique, repeated readings, appropriate cuff selection, equipment calibration and documentation of failed or unclear measurements.[7][45][46][47]Automated devices may support repeated day-and-night monitoring and population surveillance when calibrated against mercury standards and certified under cited professional standards.[28]
• Record exercise participation and response where physical-activity programmes are used, including pulse before, during and after activity, duration, distance, intensity, sets, repetitions and comments.[48]
• Monitor specialised populations through clinical follow-up rather than formal programme indicators. This includes maternal and fetal surveillance for hypertensive disorders in pregnancy, repeated paediatric measurements using age-, sex- and height-specific thresholds, and periodic occupational blood-pressure monitoring.[49][50][17][19]

Costing & Financing

No explicit costs, budgets, financing sources, resource-mobilisation mechanisms, funding gaps, procurement allocations or economic assumptions are specified.[1][2][15]The guideline nevertheless identifies material and service-capacity requirements that would require resourcing, without assigning monetary values.[2][36]

• Ensure the availability, acquisition, repair and calibration of blood-pressure measurement equipment, alongside laboratory examinations and pharmacological treatment.[2]
• Maintain accessible treatment records, trained care units and blood-pressure measurement capacity across health-service and home-based care settings.[6][2][34]
• Provide hospital capacity with adult and neonatal intensive-care units for severe pre-eclampsia, including third-level hospital care for pregnancies at or below 28 weeks.[36]
• Recognise that medicine availability is a factor in selecting antihypertensive treatment, although the guideline provides no medicine prices, procurement values or funding allocation.[14]
• Note that health education is described as reducing hypertension-management costs, but no economic estimate, costing method or budgetary saving is supplied.[15]
• Promote walking as an accessible activity described as free and not requiring expensive equipment, while recommending suitable footwear and clothing.[51][52]