scholarly journals Hypertension Subtypes among Thai Hypertensives: An Analysis of Telehealth-Assisted Instrument in Home Blood Pressure Monitoring Nationwide Pilot Project

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Sakolwat Montrivade ◽  
Pairoj Chattranukulchai ◽  
Sarawut Siwamogsatham ◽  
Yongkasem Vorasettakarnkij ◽  
Witthawat Naeowong ◽  
...  

Background. White-coat hypertension (HT), masked HT, HT with white-coat effect, and masked uncontrolled HT are well-recognized problems of over- and undertreatment of high blood pressure in real-life practice. However, little is known about the true prevalence in Thailand. Objectives. To examine the prevalence and characteristics of each HT subtype defined by mean home blood pressure (HBP) and clinic blood pressure (CBP) using telemonitoring technology in Thai hypertensives. Methods. A multicenter, observational study included adult hypertensives who had been diagnosed for at least 3 months based on CBP without the adoption of HBP monitoring. All patients were instructed to manually measure their HBP twice a day for the duration of at least one week using the same validated automated, oscillometric telemonitoring devices (Uright model TD-3128, TaiDoc Corporation, Taiwan). The HBP, CBP, and baseline demographic data were recorded on the web-based system. HT subtypes were classified according to the treatment status, CBP (≥or <140/90 mmHg), and mean HBP (≥or <135/85 mmHg) into the following eight subtypes: in nonmedicated hypertensives, there are four subtypes that are normotension, white-coat HT, masked HT, and sustained HT; in treated hypertensives, there are four subtypes that are well-controlled HT, HT with white-coat effect, masked uncontrolled HT, and sustained HT. Results. Of the 1,184 patients (mean age 58 ± 12.7 years, 59% women) from 46 hospitals, 1,040 (87.8%) were taking antihypertensive agents. The majority of them were enrolled from primary care hospitals (81%). In the nonmedicated group, the prevalence of white-coat and masked HT was 25.7% and 7.0%, respectively. Among the treated patients, the HT with white-coat effect was found in 23.3% while 46.7% had uncontrolled HBP (a combination of the masked uncontrolled HT (9.6%) and sustained HT (37.1%)). In the medicated older subgroup (n = 487), uncontrolled HBP was more prevalent in male than in female (53.6% vs. 42.4%, p=0.013). Conclusions. This is the first nationwide study in Thailand to examine the prevalence of HT subtypes. Almost one-fourth had white-coat HT or HT with white-coat effect. Approximately half of the treated patients especially in the older males had uncontrolled HBP requiring more intensive interventions. These results emphasize the role of HBP monitoring for appropriate HT diagnosis and management. The cost-effectiveness of utilizing THAI HBPM in routine practice needs to be examined in the future study.

2018 ◽  
Vol 31 (8) ◽  
pp. 919-927 ◽  
Author(s):  
Eileen J Carter ◽  
Nathalie Moise ◽  
Carmela Alcántara ◽  
Alexandra M Sullivan ◽  
Ian M Kronish

Abstract BACKGROUND Guidelines recommend that patients with newly elevated office blood pressure undergo ambulatory blood pressure monitoring (ABPM) or home blood pressure monitoring (HBPM) to rule-out white coat hypertension before being diagnosed with hypertension. We explored patients’ perspectives of the barriers and facilitators to undergoing ABPM or HBPM. METHODS Focus groups were conducted with twenty English- and Spanish-speaking individuals from underserved communities in New York City. Two researchers analyzed transcripts using a conventional content analysis to identify barriers and facilitators to participation in ABPM and HBPM. RESULTS Participants described favorable attitudes toward testing including readily understanding white coat hypertension, agreeing with the rationale for out-of-office testing, and believing that testing would benefit patients. Regarding ABPM, participants expressed concerns over the representativeness of the day the test was performed and the intrusiveness of the frequent readings. Regarding HBPM, participants expressed concerns over the validity of the monitoring method and the reliability of home blood pressure devices. For both tests, participants noted that out-of-pocket costs may deter patient participation and felt that patients would require detailed information about the test itself before deciding to participate. Participants overwhelmingly believed that out-of-office testing benefits outweighed testing barriers, were confident that they could successfully complete either testing if recommended by their provider, and described the rationale for their testing preference. CONCLUSIONS Participants identified dominant barriers and facilitators to ABPM and HBPM testing, articulated testing preferences, and believed that they could successfully complete out-of-office testing if recommended by their provider.


2021 ◽  
Vol 28 (2) ◽  
pp. 71-78
Author(s):  
K. H. Uvarova

More than 30 years have passed since the first description of such a concept as white coat hypertension was presented in the scientific literature, but since then, scientists are paying more and more attention to this condition. White coat hypertension is defined when the blood pressure readings obtained in the doctor’s office meet the criteria for hypertension, but the latter is not confirmed by outpatient or home blood pressure monitoring. Initially, the term was only applied to patients who had not received antihypertensive treatment, but recently this definition has been extended to people who regularly take drugs for lowering blood pressure, and this condition was called uncontrolled white coat hypertension. Some of the world’s most influential organizations in the field of cardiology have not reached a consensus on the definition of white coat hypertension on the background of common criteria, which has affected the differences in blood pressure thresholds according to outpatient monitoring. Quite a few studies in recent years have examined the clinical and prognostic significance of white coat hypertension in terms of its probable effects such as metabolic disorders, subclinical and extracardiac target organ damage, cardiovascular morbidity and mortality, and all-cause mortality. At present, there is no doubt that white coat hypertension is not an innocent condition; however, hypotheses about the prognostic role of this condition and the management of patients with white coat hypertension are still controversial. The question of treating white coat hypertension as a condition remains unsolved and requires further investigation. Today, it is considered most appropriate not to prescribe antihypertensive treatment to persons with office blood pressure at normal or below target levels, but to intensify lifestyle modifications and focus on reduction of cardiovascular risk.


2021 ◽  
Author(s):  
Yuli Huang ◽  
Haoxiao Zheng ◽  
Xiaoyan Liang ◽  
Chunyi Huang ◽  
Lichang Sun ◽  
...  

BACKGROUND White-coat hypertension (WCH) and masked hypertension (MH) can increase the risk of target organ damage. Home blood pressure monitoring is an important method for detecting WCH and MH. However, the prevalence and risk factors of WCH and MH in China has been rarely reported. OBJECTIVE To explore the prevalence and risk factors associated with white coat hypertension (WCH) and masked hypertension (MH) in Shunde District, Southern China. METHODS This study recruited subjects from the Physical Examination Center in Shunde Hospital, Southern Medical University. Office blood pressure and home blood pressure values were collected. The prevalence of WCH and MH was calculated by combining the office blood pressure and home blood pressure values. Multivariate logistic regression was used to explore the related risk factors for WCH and MH. RESULTS Four-hundred and sixty-one participants (61% male), with an average age of 49 years, were included. The incidence of WCH and MH was 5.1% and 15.2%, respectively. Multivariate logistic regression analysis showed that smoking (OR=4.71, 95%CI=1.05-21.15) and family history of coronary heart disease (OR=4.51, 95%CI=1.08-18.93) were associated with higher odds of WCH. The associated factors for higher odds of MH were smoking (OR=2.83, 95%CI=1.11-7.23), family history of hypertension (OR=2.17, 95%CI=1.11-4.26) and family history of coronary heart disease (OR=2.82, 95%CI=1.07-7.45). CONCLUSIONS WCH and MH are highly prevalent in the health check-up population in Southern China. Out-of-office blood pressure monitoring, especially home blood pressure monitoring with a telemedicine device should be recommended to identity abnormal BP phenotype. CLINICALTRIAL It has been registered in the Chinese Clinical Trial Registry(ChiCTR1800018515)


2018 ◽  
Vol 34 (9) ◽  
pp. 1542-1548 ◽  
Author(s):  
Pantelis A Sarafidis ◽  
Francesca Mallamaci ◽  
Charalampos Loutradis ◽  
Robert Ekart ◽  
Claudia Torino ◽  
...  

Abstract Background Population-specific consensus documents recommend that the diagnosis of hypertension in haemodialysis patients be based on 48-h ambulatory blood pressure (ABP) monitoring. However, until now there is just one study in the USA on the prevalence of hypertension in haemodialysis patients by 44-h recordings. Since there is a knowledge gap on the problem in European countries, we reassessed the problem in the European Cardiovascular and Renal Medicine working group Registry of the European Renal Association-European Dialysis and Transplant Association. Methods A total of 396 haemodialysis patients underwent 48-h ABP monitoring during a regular haemodialysis session and the subsequent interdialytic interval. Hypertension was defined as (i) pre-haemodialysis blood pressure (BP) ≥140/90 mmHg or use of antihypertensive agents and (ii) ABP ≥130/80 mmHg or use of antihypertensive agents. Results The prevalence of hypertension by 48-h ABP monitoring was very high (84.3%) and close to that by pre-haemodialysis BP (89.4%) but the agreement of the two techniques was not of the same magnitude (κ statistics = 0.648; P &lt;0.001). In all, 290 participants were receiving antihypertensive treatment. In all, 9.1% of haemodialysis patients were categorized as normotensives, 12.6% had controlled hypertension confirmed by the two BP techniques, while 46.0% had uncontrolled hypertension with both techniques. The prevalence of white coat hypertension was 18.2% and that of masked hypertension 14.1%. Of note, hypertension was confined only to night-time in 22.2% of patients while just 1% of patients had only daytime hypertension. Pre-dialysis BP ≥140/90 mmHg had 76% sensitivity and 54% specificity for the diagnosis of BP ≥130/80 mmHg by 48-h ABP monitoring. Conclusions The prevalence of hypertension in haemodialysis patients assessed by 48-h ABP monitoring is very high. Pre-haemodialysis BP poorly reflects the 48 h-ABP burden. About a third of the haemodialysis population has white coat or masked hypertension. These findings add weight to consensus documents supporting the use of ABP monitoring for proper hypertension diagnosis and treatment in this population.


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