Clinical audit of adherence to hypertension treatment guideline and control rates in hospitals of different sizes in Thailand

Costs of the HEARTS hypertension program in primary care in Lampang province, Thailand

BACKGROUND

In 2020, a pilot program for hypertension control was initiated in primary care facilities in Lampang Province, Thailand. The program followed the framework of the HEARTS program for standardized hypertension treatment, but the financial costs of the program are not well understood. This study evaluates the costs of the HEARTS approach compared to usual care to inform future scale-up efforts of the program.

METHODS

Cost data were collected and analyzed using the HEARTS costing tool, a Microsoft Excel-based tool that supports activity-based costing of the HEARTS program from the health system perspective. Three scenarios were considered: usual care, the HEARTS regimen using standardized hypertension treatment with single-agent pills, and a sub-scenario of the HEARTS regimen using single-pill dual-drug combination pills. Costs are estimated as annual costs from the health system perspective in all Lampang primary care facilities.

RESULTS

For the usual care scenario, the HEARTS single-pill scenario, and the HEARTS combination-pill sub-scenario, the average annual medication cost per treated patient was USD 14.0 (THB 485), USD 13.8 (THB 479), and USD 14.3 (THB 497), respectively. Total program cost per primary care user was USD 13.6 (THB 472.7), THB USD 14.3 (494.5), and USD 14.4 (THB 499.9) across the three scenarios, respectively. The largest program cost driver (45-47% across the examined scenarios) was attributed to a comprehensive package of laboratory tests applied to all hypertension patients. Hypothetically, reducing test coverage from all hypertension patients (27% of primary care users) to 15% of primary care users (corresponding to the proportion of patients aged 65+) would reduce program cost per user from USD 14.3 to USD 12.0 in the HEARTS combination-pill scenario.

CONCLUSIONS

Compared to usual care, HEARTS implementation costs include additional costs for staff training, which are balanced by lower medication expenditures using the HEARTS standardized regimen with single-agent pills. The HEARTS regimen using dual-drug combination pills was estimated to be slightly more costly due to the higher price of combination pills. Optimizing coverage of diagnostic tests and lowering the purchasing prices of combination-pill medicines are key areas for cost reduction in future scale-up efforts.

Bibliometric analysis of scholarly publications related to family medicine in Thailand

Background

Family medicine has been recognized as a medical specialty in Thailand. However, there is a lack of information about scholarly publications. Bibliometric analysis is a valuable methodology for identifying research trends and knowledge gaps in this field. This study aims to analyze scholarly publications related to family medicine in Thailand.

Method

This bibliometric analysis was conducted based on the PubMed search in March 2023. All relevant literature related to 'family medicine' and 'Thailand' was retrieved. Performance analysis examined the publication trends from 1963 to 2023, the top 10 journals publishing relevant articles, and the number of publications by research areas. Science mapping depicted clusters of co-occurring author keywords, their relationships, and the research themes' trend over two decades.

Results

A total of 1483 publications were retrieved. The number of publications showed an upward trend, increasing from 61 before 2000 to 359 in 2020. The Journal of the Medical Association of Thailand was the leading journal, publishing 267 articles (18.0 %). Research areas were categorized into Basic Knowledge (n = 211), Clinical Problem Solving (n = 714), Health Service (n = 256), Health System (n = 254), and Medical Education (n = 48). Science mapping identified six clusters based on 106 co-occurrence keywords, including public health, health services, medical issues in older adults, healthcare access, epidemiology, and others. Research themes have shifted from infectious diseases and public health to primary care and non-communicable diseases.

Conclusion

Future research should focus more on implementation at a population level and healthcare system, with more investigation into geriatric care and child and maternal health.

Trends in hypertension prevalence, awareness, treatment, and control in the Thai population, 2004 to 2020

BACKGROUND

Under Thailand's universal health coverage every citizen has access to primary care including free hypertension treatment. This study describes temporal trends in hypertension prevalence, awareness, treatment, and control in Thailand.

METHODS

Data were analyzed from four survey cycles of Thailand's National Health Examination Survey (NHES), between 2004 and 2019-2020. The NHES is a nationally-representative cross-sectional survey conducted every five years using a multistage probability sample. Hypertension was defined as systolic blood pressure > = 140 or diastolic blood pressure > = 90 mmHg or currently taking antihypertensive medicines; blood pressure control was defined as < 140/90 mmHg for patients without diabetes and < 130/80 mmHg for those with diabetes.

RESULTS

In 2019-2020, age-standardized hypertension prevalence in Thailand was 25.7% (24.6% females, 26.8% males). Among people with hypertension, 51.5% were aware of their diagnosis, 47.9% were treated, and 22.7% had controlled blood pressure. Age-standardized hypertension prevalence remained relatively unchanged in Thai adults from 2004 to 2019-2020, however trends varied by age group. Hypertension control increased from 8.8% in 2004 to a peak of 30% in 2014 but dropped to 22.7% by 2019-2020. Hypertension awareness increased from 30.7 to 55.8% between 2004 and 2014, but decreased to 51.5% by 2019-2020.

CONCLUSION

Hypertension prevalence in Thailand has remained high over the past 15 years. Despite universal health coverage, hypertension awareness has not improved and blood pressure control has decreased in the past five years. An urgent and concerted public health response is needed to improve diagnosis and control of hypertension to prevent avoidable cardiovascular disease.

Blood pressure-lowering medication prescribing, its adherence to guidelines and relationship with blood pressure control at a family medicine department

Background

In many resource-constrained countries, control of blood pressure (BP) is low. Antihypertensive drug prescribing practices may influence BP control. However, adherence of prescribing to treatment guidelines may not be optimal in resource-constrained settings. The aim of this study was to evaluate the pattern of blood pressure-lowering medication prescribing, and how it adheres to treatment guidelines, and to identify the relationship between medication prescriptions and BP control.

Methods

It was a cross-sectional study of hypertensive outpatients at the Korle Bu Teaching Hospital (KBTH) Family Medicine department (FMD)/Polyclinic. Data was collected with a validated structured form. Adherence of "prescribing" to recommendations of the 2017 Standard Treatment Guidelines of Ghana and 2018 European Society of Cardiology guidelines was assessed using a composite measure. We analyzed data with SPSS.

Results

About 81% (247/304) of patients received two or more antihypertensive drugs. Most patients (41%; 267/651) received calcium channel blockers (CCB), and 21.8% (142/651), 15.7% (102/651) and 12.7% (83/651) were on diuretics, angiotensin-receptor blockers (ARBs) and angiotensin converting enzyme (ACE) inhibitors respectively. CCB plus RAS inhibitor (50%) was the most prescribed two-drug combination. Number of BP drugs per patient had a statistically significant inverse relationship with BP control (beta Coefficient = -0.402; 95% Cl: 1.252-2.470; p = 0.015). The composite adherence score was 0.73 (moderate adherence) but Single-pill combination (SPC) was poor (3.2%; n = 8).

Conclusion

Most patients received multiple-pill combination treatment, and overall adherence to guidelines was suboptimal, largely owing to complex drug therapy. Number of drugs predicted BP control. Our findings suggest a need to prioritize simplified treatment, and implement other strategies to improve hypertension guideline adherence. Further research on the influence of SPC on BP control may inform future hypertension guidelines in Ghana and elsewhere in Africa.

2022 Renal denervation therapy for the treatment of hypertension: a statement from the Thai Hypertension Society

Hypertension remains a significant risk factor for major cardiovascular events worldwide. Poor adherence to treatment is extremely common in clinical practice, leading to uncontrolled hypertension. However, some patients with resistant hypertension still have uncontrolled blood pressure despite good medical compliance. A specific group of patients also develop adverse reactions to many blood pressure-lowering medications. These scenarios indicate that innovative strategies to lower blood pressure in challenging cases of hypertension are needed. The blood pressure-lowering efficacy of catheter-based renal denervation therapy to decrease sympathetic tone has been confirmed in many publications in recent years. Apart from both the invasiveness and the expensiveness of this technology, appropriate case selection to undergo this procedure is still developing. The utilization of renal denervation therapy for hypertension treatment in Thailand has lasted for 10 years with a good response in most cases. Currently, only certain interventionists at a few medical schools in Thailand can perform this procedure. However, more physicians are now interested in applying this technology to their patients. The Thai Hypertension Society Committee has reviewed updated information to provide principles for the appropriate utilization of renal denervation therapy. The blood pressure-lowering mechanism, efficacy, suitable patient selection, pre- and postprocedural assessment and procedural safety of renal denervation are included in this statement.

Identification of patient-related, healthcare-related and knowledge-related factors associated with inadequate blood pressure control in outpatients: a cross-sectional study in Serbia

OBJECTIVES

To determine rate of blood pressure (BP) control and to analyse patient-related, medication-related and healthcare system-related factors associated with poor BP control in outpatients with hypertension (HT).

DESIGN

Cross-sectional study.

SETTING

Two study sites with different levels of healthcare (primary healthcare (PHC) and secondary level of healthcare (SHC)) in Vojvodina, Northern Serbia.

PARTICIPANTS

A total of 581 patients (response rate 96.8%) visiting their primary care physician between July 2019 and June 2020 filled out a pretested semistructured questionnaire and had a BP reading during their regular appointments.

PRIMARY AND SECONDARY OUTCOME MEASURES

Data on demographics, medication, BP control (target systolic BP≤140 mm Hg and∕ or diastolic BP≤90 mm Hg) and knowledge on HT was collected. Based on the median of knowledge score, patients were classified as having poor, average and adequate knowledge.

RESULTS

Majority of the respondents (74.9%) had poorly controlled BP and had HT longer than 10 years. Larger number of patients at PHC site was managed with monotherapy while at the SHC majority received three or more antihypertensive drugs. Respondents from SHC showed a significantly lower knowledge score (9, 2-15) compared with the respondents from PHC (11, 4-15, p=0.001). The share of respondents with adequate knowledge on HT was significantly higher in the group with good BP control (26% and 9.2%, respectively). In a multivariate regression analysis, factors associated with poor BP control were knowledge (B=-1.091; p<0001), number of drugs (B=0536; p<0001) and complications (B=0898; p=0004).

CONCLUSIONS

Poor BP control is common in outpatients in Serbia, irrespective of the availability of different levels of healthcare. Patients with poor knowledge on HT, with complications of HT and those with multiple antihypertensive drugs, were at particular risk of poor BP control. Our study could serve as a basis for targeted interventions to improve HT management.