White Coat and Masked Hypertension in Chronic Kidney Disease: Importance of the Difference Between Office and Out‐of‐Office Blood Pressure Measurements

Abstract Background and Aims Arterial hypertension is main cause of left ventricular hypertrophy (LVH) in hemodialysis patients. Masked hypertension is associated with asymptomatic organ damage, including the development of LVH. The aim of this study was to investigate the prevalence of white-coat hypertension and masked hypertension in hemodialysis patients. Method Hemodialysis patients (n=88; 42 males, 46 females, mean age was 51.7±13.3 years) were studied. Office blood pressure measurements were performed before and after hemodialysis within 30 days. Home Blood Pressure Measurements (HBPM) was collected in the morning and in the evening during 4 weeks including hemodialysis session days. 24 hours blood pressure monitoring (ABPM) was performed in the next day after hemodialysis. Systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP) were analyzed. White-coat hypertension was diagnosed when blood pressure elevated in the office, but was normal when was measured by ABPM, HBPM, or both. Masked hypertension was determined when blood pressure was normal in the office, but increased when was measured by HBPM or ABPM. The definitions of the European Society of Cardiology (2018 ESC/ESH Guidelines for the management of arterial hypertension) were used for the diagnosis of hypertension according to office, ambulatory, and home blood pressure levels. Echocardiographic evaluation was performed on the day after dialysis and left ventricular mass index (LVMI) was calculated. Results Arterial hypertension was diagnosed by office blood pressure measurements in 39 (44.3%) patients. Arterial hypertension was defined by ABPM (mean 24h BP > or = 130 and 80 mmHg) in 48 (54.5%) patients. The number of non-dipper patients was 59 (67.0%). According to HBPM arterial hypertension was observed in 61 (69.3%) patients. Left ventricular hypertrophy was detected in 71 (80.7%) patients. Mean LVMI was 140.5±43.0 g/m2. According to the results of three methods of blood pressure measuring arterial hypertension was diagnosed in 53 (60.2%) patients, white-coat hypertension was observed in 5 (5.7%) patients, masked hypertension – in 19 (21.6%) patients. Conclusion According to office blood pressure measurements arterial hypertension was diagnosed in 44.3% hemodialysis patients. Masked hypertension was often observed in hemodialysis patients and when using not only ABPM, but also HBPM was detected in 21.6% of patients. The results indicate the importance of using not only ABPM, but also HBPM in hemodialysis patients.

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Comparison Between Automated Office Blood Pressure Measurements and Manual Office Blood Pressure Measurements—Implications in Individual Patients: a Systematic Review and Meta-analysis

Current Hypertension Reports ◽

10.1007/s11906-020-01118-1 ◽

2021 ◽

Vol 23 (1) ◽

Author(s):

Yacong Bo ◽

Kin-On Kwok ◽

Kareen Ka-Yin Chu ◽

Eppie Yu-Han Leung ◽

Chun Pong Yu ◽

...

Keyword(s):

Systematic Review ◽

Blood Pressure ◽

Blood Pressure Measurement ◽

Office Blood Pressure ◽

White Coat ◽

Accurate Estimation ◽

Masked Hypertension ◽

Pressure Measurements ◽

High Quality ◽

Automated Office Blood Pressure

Abstract Purpose of Review Automated office blood pressure (AOBP) measurements may provide more accurate estimation of blood pressure (BP) than manual office blood pressure (MOBP) measurements. This systematic review investigated the diagnostic performance of AOBP and MOBP using ambulatory blood pressure measurement (ABPM) as reference. Several databases including MEDLINE, Embase, Scopus, and China Academic Journals were searched. Data were extracted, double-checked by two investigators, and were analysed using a random effects model. Recent Findings A total of 26 observational studies were included. The mean systolic/diastolic BP obtained by AOBP was not significantly different from that obtained by ABPM. The sensitivity and specificity of AOBP to detect elevated BP were approximately 70%. Fewer participants had white-coat hypertension on AOBP measurement than on MOBP measurement (7% versus 14%); however, about 13% had masked hypertension on AOBP measurement. The width of the limit of agreement comparing (i) AOBP and ABPM and (ii) MOBP and ABPM was comparable. Summary AOBP may reduce the rate of the observed white-coat effect but undermine masked hypertension. The current recommendation, however, is limited by the absence of high-quality studies and the high heterogeneity of our results. More high-quality studies using different AOBP machines and in different population are therefore needed.

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Abstract P112: Orthostatic Hypotension, Orthostatic Hypertension And Ambulatory Blood Pressure In Patients With Chronic Kidney Disease: Findings From The Chronic Renal Insufficiency Cohort Study

Hypertension ◽

10.1161/hyp.78.suppl_1.p112 ◽

2021 ◽

Vol 78 (Suppl_1) ◽

Author(s):

Lama Ghazi ◽

Jordana Cohen ◽

Raymond R Townsend ◽

Paul Drawz ◽

Mahboob Rahman ◽

...

Keyword(s):

Blood Pressure ◽

Chronic Kidney Disease ◽

Cohort Study ◽

Kidney Disease ◽

Orthostatic Hypotension ◽

Standing Position ◽

White Coat ◽

White Coat Effect ◽

Orthostatic Hypertension ◽

The Difference

Background: We recently demonstrated how orthostatic hypotension might be used to identify out-of-office blood pressure phenotypes, including white coat effects and nocturnal non-dipping patterns. However, these findings have not been replicated in a population with chronic kidney disease (CKD). Objective: To examine the association between orthostatic hypotension (OH) or hypertension (OHTN) with ambulatory BP in adults with CKD. Methods: CRIC is a prospective multicenter observation cohort study of participants with CKD. Standing BP at 1 minute and ABPM were obtained on 1467 participants. OH was defined as a 20mmHg drop in systolic BP (SBP) or 10 mmHg drop in diastolic BP (DBP) when changing from seated to standing positions. OHTN was defined as a 20 mmHg or 10mmHg rise in SBP or DBP respectively when changing from seated to standing position. White coat effects, based on ABPM, was defined as the difference between seated clinic and ambulatory BP. Systolic and diastolic night to day ratio was also calculated. Results: Of the 1467 participants (age: 58 ± 10 yrs, 44% female, 39% black) 73 had OH and 165 had OHTN). OH was positively associated with systolic and diastolic white coat effect (β=5.9 [0.9, 10.9] and 4.2 [1.3, 7.1]). OHTN was negatively associated with diastolic white coat effect (-4.9 [-6.9, -3]). OH was positively associated with systolic and diastolic night-to-day ratio (0.03 [0.01, 0.05] and 0.03 [0.01, 0.06] respectively). Conclusions: Clinic-based assessments of OH and OHTN may be useful for identifying BP phenotypes often missed with seated office BP measurements in CKD patients.

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Renal hypertension and cardiovascular disorder in children with chronic kidney disease

Srpski arhiv za celokupno lekarstvo ◽

10.2298/sarh1402113p ◽

2014 ◽

Vol 142 (1-2) ◽

pp. 113-117 ◽

Cited By ~ 2

Author(s):

Amira Peco-Antic ◽

Dusan Paripovic

Keyword(s):

Blood Pressure ◽

Chronic Kidney Disease ◽

Kidney Disease ◽

Children And Adolescents ◽

Ambulatory Blood Pressure ◽

Pressure Measurement ◽

Blood Pressure Measurement ◽

Renal Hypertension ◽

Masked Hypertension ◽

Ambulatory Blood Pressure Measurement

Renal hypertension is one of the earliest and the most prevalent complications of pediatric chronic kidney disease (CKD). Among renal patients, hypertension is frequently underdiagnosed and undertreated. For casual blood pressure measurement, the best method is auscultatory, while for ambulatory blood pressure measurement, oscillometric method is the most commonly used. Both casual and ambulatory blood pressure measurement provide more powerful means of diagnosing hypertension. Masked hypertension is a condition in which casual blood pressure is normal but ambulatory blood pressure is elevated. The risk of cardiovascular morbidity and mortality is higher with masked hypertension as compared to the controls. Children and adolescents with CKD are at high risk of cardiovascular disease that has been established as the leading cause of death in patients with end stage renal disease. Left ventricular hypertrophy remains the most thoroughly documented form of end-organ damage caused by hypertension in children and adolescents with CKD. Based on clear evidence on the correlation between blood pressure and cardiovascular morbidity, mortality, and renal function, renal hypertension must be aggressively treated. Target blood pressure for patients with renal hypertension should be at low normal values: <75 percentile for patients without proteinuria and <50 percentile for patients with proteinuria. Renin-angiotensin system antagonists are considered the first choice pharmacological option in hypertensive CKD 2-4 patients while the management of volume overload is the most important in dialysis patients. Successful transplantation can eliminate or significantly improve uremia-related cardiovascular risk factors and increase predicted life expectancy.

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