Ten‐year changes in ambulatory blood pressure: The prognostic value of ambulatory pulse pressure

Blood pressure (BP) changes and risk factors associated with pulse pressure (PP) increase in elderly people have rarely been studied using ambulatory blood pressure monitoring (ABPM). The aim is to evaluate 10‐year ambulatory blood pressure (ABP) changes in older hypertensives, focusing on PP and its associations with mortality. An observational study was conducted on 119 consecutive older treated hypertensives evaluated at baseline (T0) and after 10 years (T1). Treatment adherence was carefully assessed. The authors considered clinical parameters at T1 only in survivors (n = 87). Patients with controlled ABP both at T0 and T1 were considered as having sustained BP control. Change in 24‐hour PP between T0 and T1 (Δ24‐hour PP) was considered for the analyses. Mean age at T0: 69.4 ± 3.7 years. Females: 57.5%. Significant decrease in 24‐hour, daytime, and nighttime diastolic BP (all P < .05) coupled with an increase in 24‐hour, daytime, and nighttime PP (all P < .05) were observed at T1. Sustained daytime BP control was associated with lower 24‐hour PP increase than nonsustained daytime BP control (+2.23 ± 9.36 vs +7.79 ± 8.64 mm Hg; P = .037). The association between sustained daytime BP control and Δ24‐hour PP remained significant even after adjusting for age, sex, and 24‐hour PP at T0 (β=0.39; P = .035). Both 24‐hour systolic BP and 24‐hour PP at T0 predicted mortality (adjusted HR 1.07, P = .001; adjusted HR 1.25, P < .001, respectively). After ROC comparison (P = .001), 24‐hour PP better predicted mortality than 24‐hour systolic BP. The data confirm how ABP control affects vascular aging leading to PP increase. Both ambulatory PP and systolic BP rather than diastolic BP predict mortality in older treated hypertensives.     

Peak blood pressure‐guided monitoring may serve as an effective approach for blood pressure control in the out‐of‐office setting

We aimed to explore whether diurnal blood pressure (BP) peak characteristics have a significant influence on the association between left ventricular damage with the two BP components (morning BP vs. afternoon peak BP) in untreated hypertensives. This cross‐sectional study included 1084 hypertensives who underwent echocardiography and 24‐h ambulatory BP monitoring. Participants were stratified according to the relationship between morning systolic BP (MSBP; average SBP within 2 h of waking up) and afternoon peak systolic BP (ASBP; average SBP between 16:00 and 18:00). Afternoon and morning hypertension was defined as ≥ 135/85 mm Hg. The morning and afternoon peak BPs occurred at around 7:00 and 17:00, respectively. In general hypertensives, morning BP and afternoon peak BP are significantly different in absolute values (for binary SBP, McNemar''s χ² = 6.42; p = .014). ASBP was more pronounced than MSBP in 602 patients (55.5%), in whom 24‐h SBP showed higher consistency with ASBP than with MSBP (Kappa value: 0.767 vs 0.646, both p < .01). In subjects with ASBP ≥ MSBP, ASBP was associated with left ventricular hypertrophy independent of MSBP (logistic regression analysis odds ratio: 1.046, p < .01), and left ventricular mass index was more strongly correlated with ASBP than with MSBP (multiple regression coefficient β: 0.453, p < .01), in which the relationships held true independently of 24‐h SBP. The opposite results were obtained in subjects with MSBP > ASBP. Peak BP‐guided monitoring may serve as an effective approach to out‐of‐office hypertension monitoring and control, providing the best consistency with 24‐h average SBP and highest discrimination performance for target organ damage, independently of 24‐h SBP.     

Automated office blood pressure measurements obtained with and without preceding rest are associated with awake ambulatory blood pressure

Automated office blood pressure (AOBP) measurement, attended or unattended, eliminates the white coat effect (WCE) showing a strong association with awake ambulatory blood pressure (ABP). This study examined the difference in AOBP readings, with and without 5 minutes of rest prior to three readings recorded at 1‐min intervals. Cross‐sectional data from 100 randomized selected hypertensives, 61 men and 39 women, with a mean age of 52.2 ± 10.8 years, 82% treated, were analyzed. The mean systolic AOBP values without preceding rest were 127.0 ± 18.2 mm Hg, and the mean systolic AOBP values with 5 minutes of preceding rest were 125.7 ± 17.9 mm Hg (P = .05). A significant order effect was observed for the mean systolic BP values when AOBP without 5 minutes of preceding rest was performed as the first measurement (130.0 ± 17.7 vs 126.5 ± 16.2, P = .008). When we used a target systolic AOBP ≥ 130 mm Hg, awake ABP yielded lower readings, while at a target systolic AOBP value of < 130 mm Hg higher awake ABP values were obtained. Our findings indicate that systolic AOBP can be initially checked without any preceding rest and if readings are normal can be accepted. Otherwise, when AOBP is ≥ 130 mm Hg, measurements should be rechecked with 5 minutes of rest.     

Automated office blood pressure is in agreement with awake and mean 24‐hour ambulatory blood pressure at the lower blood pressure range

Automated office blood pressure measurement eliminates the white coat effect and is associated with awake ambulatory blood pressure. This study examined whether automated office blood pressure values at lower limits were comparable to those of awake and mean 24‐hour ambulatory blood pressure. A total of 552 patients were included in the study, involving 293 (53.1%) men and 259 (46.9%) women, with a mean age 55.0 ± 12.5, of whom 36% were treated for hypertension. Both systolic and diastolic automated office blood pressures exhibited lower values compared to awake ambulatory blood pressure among 254 individuals with systolic automated office blood pressure <130 mm Hg (119 ± 8 mm Hg vs 125 ± 11 mm Hg, P < .0001 and 75 ± 9 mm Hg vs 79 ± 9 mm Hg, P < .0001 for systolic and diastolic BPs, respectively). Furthermore, the comparison of systolic automated office blood pressure to the mean 24‐hour ambulatory blood pressure levels also showed lower values (119 ± 8 vs 121 ± 10, P = .007), whereas the diastolic automated office blood pressure measurements were similar to 24‐hour ambulatory blood pressure values. Our findings show that when automated office blood pressure readings express values <130/80 mm Hg in repeated office visits, further investigation should be performed only when masked hypertension is suspected; otherwise, higher automated office blood pressure values could be used for the diagnosis of uncontrolled hypertension, especially in individuals with organ damage.     

Effects of different statin types and dosages on systolic/diastolic blood pressure: Retrospective analysis of 24‐hour ambulatory blood pressure database

We previously demonstrated lower diastolic blood pressure (BP) levels under statin therapy in adult individuals who consecutively underwent 24‐hour ambulatory BP monitoring and compared their levels to untreated outpatients. Here we evaluated systolic/diastolic BP levels according to different statin types and dosages. 987 patients (47.5% female, age 66.0 ± 10.1 years, BMI 27.7 ± 4.6 kg/m², clinic BP 146.9 ± 19.4/86.1 ± 12.1 mm Hg, 24‐hour BP 129.2 ± 14.4/74.9 ± 9.2 mm Hg) were stratified into 4 groups: 291 (29.5%) on simvastatin 10‐80 mg/d, 341 (34.5%) on atorvastatin 10‐80 mg/d, 187 (18.9%) on rosuvastatin 5‐40 mg/d, and 168 (17.0%) on other statins. There were no significant BP differences among patients treated by various statin types and dosages, except in lower clinic (P = .007) and daytime (P = .013) diastolic BP in patients treated with simvastatin and atorvastatin compared to other statins. Favorable effects of statins on systolic/diastolic BP levels seem to be independent of types or dosages, thus suggesting a potential class effect of these drugs.     

Validation of two watch‐type wearable blood pressure monitors according to the ANSI/AAMI/ISO81060‐2:2013 guidelines: Omron HEM‐6410T‐ZM and HEM‐6410T‐ZL

There is growing evidence of the clinical significance of daytime masked hypertension (MHT) and blood pressure (BP) variability (BPV). Recently, watch‐type wearable devices for self‐BP measurement have become available. Such devices might be promising tools to identify patients with daytime MHT or large BPV in their real‐life conditions. The present study aimed to validate the accuracy of the Omron HEM‐6410T‐ZM and the Omron HEM‐6410T‐ZL, which are automatic watch‐type wearable devices for self‐BP measurement, according to the American National Standards Institute, Inc/Association for the Advancement of Medical Instrumentation/International Organization for Standardization (ANSI/AAMI/ISO) 81060‐2:2013 guideline. Watches were held with the wrist at heart level. The mean differences between reference BPs and HEM‐6410T‐ZM readings were −0.9 ± 7.6/‐1.1 ± 6.1 mm Hg for systolic BP (SBP)/diastolic BP (DBP) for criterion 1, and −0.9 ± 6.8/‐1.1 ± 5.5 mm Hg for SBP/DBP for criterion 2. The mean differences between reference BPs and HEM‐6410T‐ZL readings were 2.4 ± 7.3/0.7 ± 7.0 mm Hg for SBP/DBP for criterion 1, and 2.4 ± 6.5/0.7 ± 6.5 mm Hg for SBP/DBP for criterion 2. The Omron HEM‐6410T‐ZM and the Omron HEM‐6410T‐ZL both fulfilled both validation criteria 1 and 2 of the ANSI/AAMI/ISO 81060‐2:2013 guidelines.     

高龄老年高血压患者动态血压和动态心电图特点及临床分析

目的分析高血压患者的24h动态血压、心电图的特点，并结合临床分析，为临床高龄老年高血压防治提供可参考依据。方法共入选老年高血压患者214例，按年龄分为两组，A组：高龄老年组（≥80岁）96例；B组：低龄老年组（60～79岁）118例。采用24h动态血压和24h动态心电图同步监测技术，记录血压和心电图变化，同时采集多次住院病历，观察高血压患者治疗过程中血压控制情况，心律失常以及靶器官损害发生情况。结果高龄老年组的大部分患者血压控制良好。24h动态血压水平两组之间仍有明显差异，高龄老年组心律失常、心脑血管事件次数、糖尿病、体重指数、左心室重量指数等均显著高于低龄老年组。结论与低龄老年组相比，80岁以上的高龄老年高血压患者肾损害明显，其24h动态血压水平与动态心电图改变及肾损害之间密切相关。     

Impact of in‐hospital blood pressure variability on cardiovascular outcomes in patients with acute coronary syndrome

To evaluate the impact of blood pressure variability (BPV) on cardiovascular outcomes in patients with acute coronary syndrome, short‐term BPV was estimated by using weighted standard deviation of 24‐hour ambulatory blood pressure monitoring readings. The primary outcome was in‐hospital major adverse cardiac events (MACE). Overall, 200 patients (mean age, 58.6 years; 27.5% women; 38% with diabetes mellitus; and 47% smokers) were divided into low and high BPV groups based on the median value (9.45). Patients in the high BPV group were more likely to have in‐hospital MACE compared with patients with low BPV (47% vs 27%, P = .003). Multivariate binary logistic regression analysis of incidence of MACE showed that BPV (odds ratio, 2.4; confidence interval, 1.2–4.5 [P = .008]) and presence of type II diabetes mellitus (odds ratio, 2.6; confidence interval, 1.2–5.3 [P = .008]) were the only independent predictors of in‐hospital MACE derived mainly by hypertensive emergencies. BPV could be an important risk factor for in‐hospital MACE in patients with acute coronary syndrome.     

Validation of a wrist‐type home nocturnal blood pressure monitor in the sitting and supine position according to the ANSI/AAMI/ISO81060‐2:2013 guidelines: Omron HEM‐9601T

This study aimed to validate the accuracy of the Omron HEM‐9601T, an automatic wrist‐type device for self‐blood pressure (BP) measurement with a timer function for automatic measurement of nocturnal BP, in the sitting position according to the American National Standards Institute/Association for the Advancement of Medical Instrumentation/International Organization for Standardization (ANSI/AAMI/ISO) 81060‐2:2013 guidelines, and to assess its performance in the supine position by applying the same protocol as conducted in the sitting position. The mean differences between the reference BPs and HEM‐9601T readings were 1.2 ± 6.9/1.1 ± 5.5 mmHg, 2.2 ± 6.5/1.8 ± 5.7 mmHg, 0.1 ± 6.6/1.5 ± 6.2 mmHg, and ?0.8 ± 7.2/0.5 ± 6.4 mmHg for systolic BP/diastolic BP for criterion 1 in the sitting position, supine with sideways palm position, supine with upward palm position, and supine with downward palm position, respectively. In addition, the mean differences and their standard deviations for systolic BP and diastolic BP calculated according to criterion 2 in the ANSI/AAMI/ISO 81060‐2:2013 guidelines were acceptable in all four positions. In conclusion, the Omron HEM‐9601T fulfilled the validation criteria of the ANSI/AAMI/ISO81060‐2:2013 guidelines when used in the sitting position with the wrist at heart level, and its accuracy in the supine position was acceptable and roughly equivalent to that in the sitting position. The wrist‐type home BP monitor could be a more suitable tool for repeated nocturnal BP measurements at home than upper‐arm devices, and could improve the reliability of diagnosis and management of nocturnal hypertension.     

Validation of a wrist‐type home nocturnal blood pressure monitor in the sitting and supine position according to the ANSI/AAMI/ISO81060‐2:2013 guidelines: Omron HEM‐9600T

The purpose of the present study was to evaluate the performance of the Omron HEM‐9600T, an automatic wrist‐type device for self BP measurement, in the sitting position with the wrist at heart level and supine position according to the ANSI/AAMI/ISO81060‐2:2013 guidelines. In the supine position, we evaluated the device under 3 different conditions: using the supine with sideways palm position, the supine with upwards palm position, and the supine with downwards palm position. After 106 subjects were screened and 21 subjects were excluded, the same 85 subjects (38 men [44.7%] and 47 women [55.3%]) were included in the analyses for each position. The average age of the subjects was 54.5 ± 12.2 years (mean ± SD). The mean wrist circumference was 17.0 ± 2.4 cm. The wrist size distribution fulfilled the requirements of the guidelines. The mean differences between reference BPs and HEM‐9600T readings were 1.0 ± 6.7/1.4 ± 5.7 mm Hg, 6.6 ± 7.2/5.5 ± 6.0 mm Hg, 4.8 ± 7.2/4.9 ± 5.8 mm Hg, and 2.1 ± 7.2/2.8 ± 6.8 mm Hg for SBP/DBP in the sitting position, supine with sideways palm position, supine with upwards palm position, and supine with downwards palm position, respectively. In conclusion, the Omron HEM‐9600T in the sitting position fulfilled the validation criteria of the ANSI/AAMI/ISO81060‐2:2013 guidelines. On the other hand, the accuracies of HEM‐9600T in the supine position differed depending on the positioning of the palm, with only the downwards palm‐position measurement fulfilling both validation criteria of the ANSI/AAMI/ISO81060‐2:2013 guidelines.     

动态血压联合家庭血压监测对慢性心力衰竭患者血压变异性及预后的指导意义

目的 对慢性心力衰竭（CHF）患者使用动态血压联合家庭血压监测,观察其对血压变异性（BPV）和预后的指导意义。方法 入选192例CHF患者随机分为联合监测组（n=97）和对照组（n=95）。对所有患者进行为期1年的随访,采用常规的门诊预约随访,随访间隔为1个月。联合监测组患者采用家庭血压监测模式进行CHF的监测随访,每日早晚测量的血压和脉率值通过手机传输给中央系统,由我院心血管内科专人负责中央系统维护和每位患者血压监测观察。当中央系统发现某位患者血压波动异常或脉率波动异常时,将电话通知该位患者增加血压、脉率测量次数或增加门诊随访次数,并及时调整CHF的治疗方案。所有患者在入组前、随访6月行动态血压监测,并收集记录所有数据。观察记录所有患者随访一年中的以下心血管事件：非计划性随访、心源性死亡、恶性心律失常、再次因心力衰竭住院。结果 入组前两组患者杓型血压患者所占比例没有统计学差异（P>0.05）。在随访6个月后,联合监测组患者杓型血压比例明显高于入组前水平（36.08% VS. 13.40%, P=0.004）,且高于随访6个月后对照组杓型血压患者比例（36.08% VS. 16.84%, P=0.012）。24h PR在入组前两组患者没有统计学差异（P>0.05）。在随访6个月后,两组患者的24h PR较入组前均明显降低（P<0.05）。6个月的随访后联合监测组患者24h PR明显低于对照组24h PR（70.14±13.42 VS. 77.02±16.15, P=0.002）。入组前两组患者24hSBPV和24hDBPV没有统计学差异（P>0.05）。随访6个月后联合监测组患者24hSBPV和24hDBPV均低于入组前水平,并低于随访6个月后对照组患者（P均<0.05）。联合监测组患者非计划性随访发生比例（11.34% VS. 24.21%, P=0.032）、再次住院发生比例（6.19% VS. 17.89%, P=0.023）和恶性心律失常发生比例（3.09% VS. 11.58%, P=0.047）明显低于对照组患者。结论 动态血压联合家庭血压监测模式较传统的门诊随访进一步降低血压变异性,增加杓型血压比例,并能改善CHF患者预后,值得临床推广。     

The influence of ambulatory blood pressure profile on left ventricular geometry

Besides causing a hypertrophy in the left ventricle, hypertension results in a change in the geometry of the left ventricle. The blood pressure, which does not decrease enough during the night, leads to structural changes in the left ventricle. In this study, the influence of 24-hour blood pressure profile on the left ventricular geometry was examined. Ambulatory blood pressure monitoring was applied to 60 patients with mild to moderate hypertension who had never been treated and standard echocardiographic evaluation was conducted thereafter. The patients were divided into two groups with respect to the ambulatory blood pressure profiles: the patients whose night blood pressure levels decreased by more than 10% compared to their daytime blood pressure levels (dipper) and those whose levels did not decrease that much (nondipper). The left ventricle mass index and the relative wall thickness of the patients were calculated. With respect to the left ventricle geometry, mass index and relative wall thickness of the patients were determined as: having normal geometry, concentric remodeling, eccentric hypertrophy, and concentric hypertrophy. Age, gender, systolic, and diastolic blood pressure were similar within the dipper and nondipper groups. Normal geometry, concentric remodeling, and concentric hypertrophy ratios were similar in both groups. Eccentric hypertrophy was higher in the nondipper group compared to the dipper group (42.9% vs 6.3%, P < 0.03). Patients with mild to moderate hypertension, whose blood pressure does not decrease enough, develop eccentric hypertrophy.     

Prediction of atrial fibrillation in patients with hypertension: A comprehensive comparison of office and ambulatory blood pressure measurements

Hypertension is associated with the development of atrial fibrillation (AF). Evidence has shown that reverse dipping pattern, an abnormal increase of night‐time blood pressure (BP) comparing to daytime BP, is associated with cardiovascular events. However, the relationship between diurnal changes in BP and AF has not been sufficiently explored. This paper aims to cross‐sectionally explore the relationship between AF and ambulatory BP parameters, especially reverse dippers to the others, and further longitudinally analyze how BP patterns are associated to the risk of developing new‐onset AF. Between February 2012 and March 2021, five out of 412 patients were identified of AF at baseline; four were reverse dippers (3.7%) and one was from the others (.3%). Cross‐sectionally, the multivariate logistic regression analysis showed that reverse dippers were significantly more likely to have AF (odds ratio: 12.39, p = .030). After excluding patients with baseline AF, during the mean follow‐up of 4.6 ± 3.0 years, seven patients developed AF. Longitudinally, the multivariate Cox regression analysis revealed that 24‐h systolic BP (hazard ratio per 10 mmHg: 2.12, p = .015), night‐time systolic BP (hazard ratio per 10 mmHg: 2.27, p = .002), and presentation of reverse dipping (hazard ratio: 5.25, p = .042) were independently associated with new‐onset AF. None of the office BP measurements were associated with new‐onset AF. While ambulatory BP measurements were better predictors for the incidence of AF, careful management is necessary for reverse dippers as they are at high risk of developing AF.     

Nocturnal hypertension in primary care patients with high office blood pressure: A regional study of the MAPAGE project

Nocturnal hypertension (NH) is an independent cardiovascular risk factor. We aimed to describe the frequency of NH among primary care hypertensive patients and to analyze NH determinants. This observational, cross‐sectional, multicenter study enrolled the patients of 23 general practitioners in Burgundy region, France. We included the first patient of the day with office blood pressure ≥ 140/90 mm Hg, whatever the reason for consultation. All included patients had 24‐hour ambulatory blood pressure monitoring (ABPM). Nocturnal hypertension was considered nighttime mean blood pressure ≥ 120/70 mm Hg, as per current guidelines. Medical, sociodemographic, and deprivation data were collected. Nocturnal hypertensive and non‐hypertensive patients were compared. The determinants of NH were identified using logistic regression models. From July 2015 to November 2018, 447 patients were analyzed. Mean office blood pressure was 158.6/91.5 mm Hg, and 255 patients (57.0%) were taking at least one antihypertensive drug. Among the 409 (91.5%) valid ABPM, 316 (77.3%) showed NH. In multivariate analyses, male sex (odds ratio [OR] = 2.20, 95% confidence interval [CI] 1.29‐3.75), first office diastolic blood pressure >100 mm Hg (OR = 5.71, 95% CI 1.53‐21.40), and current smoking (OR = 5.91, 95% CI 2.11‐16.56) were independent predictors of NH. Obesity was associated with a reduced risk of NH (OR = 0.43, 95% CI 0.25‐0.75). No association was found between deprivation status or sociodemographic factors and NH. To conclude, NH was identified in more than three out of four patients with high office blood pressure. Male smokers with high diastolic blood pressure were most affected by NH. ABPM may improve hypertension management in these patients.     

Prevalence and clinical outcomes of white‐coat and masked hypertension: Analysis of a large ambulatory blood pressure database

The aim of this study was to analyze prevalence and clinical outcomes of the following clinical conditions: normotension (NT; clinic BP < 140/90 mm Hg; 24‐hour BP < 130/80 mm Hg), white‐coat hypertension (WCHT; clinic BP ≥ 140 and/or ≥90 mm Hg; 24‐hour BP < 130/80 mm Hg), masked hypertension (MHT; clinic BP < 140/90 mm Hg; 24‐hour BP ≥ 130 and/or ≥80 mm Hg), and sustained hypertension (SHT; clinic BP ≥ 140 and/or ≥90 mm Hg; 24‐hour BP ≥ 130 and/or ≥80 mm Hg) in a large cohort of adult untreated individuals. Systematic research throughout the medical database of Regione Lazio (Italy) was performed to estimate incidence of myocardial infarction (MI), stroke, and hospitalizations for HT and heart failure (HF). Among a total study sample of 2209 outpatients, 377 (17.1%) had NT, 351 (15.9%) had WCHT, 149 (6.7%) had MHT, and 1332 had (60.3%) SHT. During an average follow‐up of 120.1 ± 73.9 months, WCHT was associated with increased risk of hospitalization for HT (OR 95% CI: 1.927 [1.233‐3.013]; P = .04) and HF (OR 95% CI: 3.449 [1.321‐9.007]; P = .011). MHT was associated with an increased risk of MI (OR 95% CI: 5.062 [2.218‐11.550]; P < .001), hospitalization for HT (OR 95% CI: 2.553 [1.446‐4.508]; P = .001), and for HF (OR 95% CI: 4.214 [1.449‐12.249]; P = .008). These effects remained statistically significant event after corrections for confounding factors including age, BMI, gender, smoking, dyslipidaemia, diabetes, and presence of antihypertensive therapies.     

Office blood pressure threshold of 130/80 mmHg better predicts uncontrolled out‐of‐office blood pressure in apparent treatment‐resistant hypertension

The objective of this study was to compare the diagnostic accuracy of office blood pressure (BP) threshold of 140/90 and 130/80 mmHg for correctly identifying uncontrolled out‐of‐office BP in apparent treatment‐resistant hypertension (aTRH). We analyzed 468 subjects from a prospectively enrolled cohort of patients with resistant hypertension in South Korea (clinicaltrials.gov: {"type":"clinical-trial","attrs":{"text":"NCT03540992","term_id":"NCT03540992"}}NCT03540992). Resistant hypertension was defined as office BP ≥ 130/80 mmHg with three different classes of antihypertensive medications including thiazide‐type/like diuretics, or treated hypertension with four or more different classes of antihypertensive medications. We conducted different types of BP measurements including office BP, automated office BP (AOBP), home BP, and ambulatory BP. We defined uncontrolled out‐of‐office BP as daytime BP ≥ 135/85 mmHg and/or home BP ≥ 135/85 mmHg. Among subjects with office BP < 140/90 mmHg and subjects with office BP < 130/80 mmHg, 66% and 55% had uncontrolled out‐of‐office BP, respectively. The prevalence of controlled and masked uncontrolled hypertension was lower, and the prevalence of white‐coat and sustained uncontrolled hypertension was higher, with a threshold of 130/80 mmHg than of 140/90 mmHg, for both office BP and AOBP. The office BP threshold of 130/80 mmHg was better able to diagnose uncontrolled out‐of‐office BP than 140/90 mmHg, and the net reclassification improvement (NRI) was 0.255. The AOBP threshold of 130/80 mmHg also revealed better diagnostic accuracy than 140/90 mmHg, with NRI of 0.543. The office BP threshold of 130/80 mmHg showed better than 140/90 mmHg in terms of the correspondence to out‐of‐office BP in subjects with aTRH.     

脑梗死患者急性期血压监测与预后的初步研究

目的探讨脑梗死患者急性期动态血压的变化及血压与预后的相关性。方法本研究为前瞻性地对发病48h内入院的53例脑梗死患者进行24 h动态血压监测,持续10天,记录其他影响预后的危险因素,并在21天、3个月做近远期神经功能评分。结果脑梗死患者急性期高血压常见,有自发下降的趋势。在入院4天时,收缩压和舒张压分别下降(8.8±7.9)mm Hg(、4.5±5.0)mm Hg(1 mm Hg=0.133 kPa,P<0.05),4~10天时血压下降趋势趋于平缓。脑梗死患者急性期血压与远期预后单因素分析显示呈U型曲线关系,血压的最适水平为收缩压140~160mm Hg,舒张压75~80 mm Hg。但在多因素分析中仅收缩压≥160 mm Hg与140~159.9 mm Hg比较是近期(P=0.024)和远期(P=0.046)预后不良的独立危险因素,收缩压每升高10 mm Hg,近期和远期预后不良的危险性分别增加368.2%和137.2%。结论脑梗死患者急性期血压显著升高(收缩压≥160 mm Hg)提示预后不良。