Clinical and Therapeutic Evaluation of Hypertensives According to the Practice of Ambulatory Blood Pressure Measurement (ABPM) at the Bel Air International Clinic in Conakry from January 1, 2019 to November 30, 2022

Introduction: Ambulatory Blood Pressure Measurement (ABPM) is a non- invasive examination recommended for subjects at high cardiovascular risk, and those requiring a nocturnal drop in BP such as elderly and obese subjects, those with secondary hypertension or resistant, diabetics, subjects with metabolic syndrome or sleep apnea syndrome. The objective of this study was to evaluate the contribution of ABPM in the diagnosis and evaluation of the level of control of hypertension under treatment at the Bel Air international clinic. Materials and Methods: This is a retrospective, cross-sectional and descriptive study, carried out at the Bel Air International Clinic in Conakry (Guinea) between January 2019 and November 30, 2022. It included a consecutive series of 180 consenting patients recruited through an ambulatory measurement of 24-hour blood pressure from a FUGADA brand device. Results: We collected 180 patients, with a male predominance (sex-ratio M/F = 2.46). The mean age of the patients was 48.48 ± 14.23 years. The most represented age group was that of 32 to 42 years with 50 cases (27.8%) followed by that of 43 to 52 years with 42 cases or 23.3%. The indication was for diagnostic purposes in 106 cases 58.9%, the therapeutic evaluation in 58 patients (32.2%). The examination was prescribed by a cardiologist in 98 cases (54.4%), a general practitioner in 71 cases (39.4%), a neurologist in 11 cases (6.1%). In the therapeutic evaluation, high blood pressure was controlled in 24 patients (13.3%) and uncontrolled in 34 cases (18.9%). In the diagnostic indication, high blood pressure was confirmed in 79 cases (43.9%) with a statistically significant link (Chi2 = 4.57 and p-value = 0.032). The nycthemeral mean was 187.27 ± 26.22 mmHg for systolic blood pressure (SBP) and 110.37 ± 19.06 mmHg for diastolic blood pressure (DBP), during the day, 151.64 ± 21.45 mmHg for SBP and 71.59 ± 8.67 mmHg for diastolic blood pressure. During the study 65 patients (36.1%) were identified as dippers and 115 patients (63.9%) were no-dipping. The antihypertensive protocol used was monotherapy in 68 cases (37.8%), dual therapy in 46 cases (25.6%), triple therapy in 17 cases (9.4%). However 39 patients or 21.7% were not taking any antihypertensive. Conclusion: This preliminary study, despite the modest sample size, showed the importance of ABPM as a tool for diagnosis, monitoring of hypertensive patients and therapeutic adaptation. A large-scale national study would be necessary for the rational use of ambulatory blood pressure measurement in our context in order to improve the management of hypertensive patients.

Hygienic and Dietary Measures in Cameroonian Hypertensive Patients Followed at the Douala General Hospital: Knowledge, Compliance and Effect on Blood Pressure Control

Introduction: The management of hypertension is mostly based on pharmacotherapy and hygienic and dietary measures (HDMs) for which little data is available in Cameroon. The concern to improve the quality of life of hypertensive patients led us to study the knowledge, compliance and effect of HDMs among Cameroonian hypertensive patients. Methods: This was a cross-sectional study carried out at the Douala General Hospital;the census of patients was carried out from 05 March to 10 May 2018. The data evaluated were knowledge and compliance with HDMs with an inference of their effect on blood pressure control. Results: We recruited 330 participants at mean age of 60 ± 11 years, 37.9% men;57.3% with blood pressure (BP) controlled. Out of 330 subjects, 308 (93.3%) who had been educated about dietary health measures for hypertension were assessed on knowledge, compliance and effect of these measures against 22 (6.7%) who had never heard about them. Around 85.7% of participants had good knowledge of HDMs and 78.9% had good compliance with them. There was no statistically significant influence of knowledge and compliance with HDMs on blood pressure control. Conclusion: The level of knowledge and adherence to HDMs of hypertensive patients at the Douala General Hospital was appreciable. It is however appropriate for physicians to intensify patient education on HDMs and BP control.

Reliability of Blood Pressure Measurements: An Analysis of the White Coat Effect and Its Fluctuations

In this paper, we evaluate the difference between the first and second measurements of blood pressure (BP) when BP is measured twice using the results of 17,775 medical checkups. The two measurements for both systolic BP (SBP) and the diastolic BP (DBP) fluctuated a large amount even though they were measured at a short interval. The first measurements were 6.7 and 2.4 mmHg higher than the second ones for SBP and DBP, suggesting a white coat effect. Then, the factors that might affect the differences between the two measurements were analyzed by the regression models. For both SBP and DBP, the difference increased as the first measurement increased. Age, gender, BMI and alcohol consumption were other important factors affecting the difference. In the case of a typical male individual, the typical criteria for hypertension of 140/90, 160/100 and 180/110 mmHg criteria in the first measurement would correspond to 135/86, 150/94 and 165/102 mmHg in the second measurement. The necessity of developing accurate and cost-efficient BP measurement methods is strongly suggested.

Numerical analysis of stress distribution in the upper arm tissues under an inflatable cuff：Implications for noninvasive blood pressure measurement

An inflatable cuff wrapped around the upper arm is widely used in noninvasive blood pressure measurement.However, the mechanical interaction between cuff and arm tissues, a factor that potentially affects the accuracy of noninvasive blood pressure measurement, remains rarely addressed. In the present study, finite element（FE） models were constructed to quantify intra-arm stresses generated by cuff compression, aiming to provide some theoretical evidence for identifying factors of importance for blood pressure measurement or explaining clinical observations. Obtained results showed that the simulated tissue stresses were highly sensitive to the distribution of cuff pressure on the arm surface and the contact condition between muscle and bone. In contrast, the magnitude of cuff pressure and small variations in elastic properties of arm soft tissues had little influence on the efficiency of pressure transmission in arm tissues. In particular, it was found that a thickened subcutaneous fat layer in obese subjects significantly reduced the effective pressure transmitted to the brachial artery, which may explain why blood pressure overestimation occurs more frequently in obese subjects in noninvasive blood pressure measurement.

A Deep Learning-Based Continuous Blood Pressure Measurement by Dual Photoplethysmography Signals

This study proposed a measurement platform for continuous blood pressure estimation based on dual photoplethysmography(PPG)sensors and a deep learning(DL)that can be used for continuous and rapid measurement of blood pressure and analysis of cardiovascular-related indicators.The proposed platform measured the signal changes in PPG and converted them into physiological indicators,such as pulse transit time(PTT),pulse wave velocity(PWV),perfusion index(PI)and heart rate(HR);these indicators were then fed into the DL to calculate blood pressure.The hardware of the experiment comprised 2 PPG components(i.e.,Raspberry Pi 3 Model B and analog-todigital converter[MCP3008]),which were connected using a serial peripheral interface.The DL algorithm converted the stable dual PPG signals acquired from the strictly standardized experimental process into various physiological indicators as input parameters and finally obtained the systolic blood pressure(SBP),diastolic blood pressure(DBP)and mean arterial pressure(MAP).To increase the robustness of the DL model,this study input data of 100 Asian participants into the training database,including those with and without cardiovascular disease,each with a proportion of approximately 50%.The experimental results revealed that the mean absolute error and standard deviation of SBP was 0.17±0.46 mmHg.The mean absolute error and standard deviation of DBP was 0.27±0.52 mmHg.The mean absolute error and standard deviation of MAP was 0.16±0.40 mmHg.

A blood pressure measurement method based on synergetics theory

The principle for blood pressure measurement using pulse transit time is introduced in this paper.And the math model of synergetics theory is studied in detail.The synergetics theory is applied in the analysis of blood pressure measurement data.The simulation results show that the application of synergetics theory is helpful to judge the normal blood pressure,and the accuracy is up to 80%.

Non-Contact Blood Pressure Measurement Based on IPPG

Blood pressure is an important physiological parameter to reflect human vital signs.In order to achieve the non-contact dynamic blood pressure acquisition based on ordinary optical camera,a theoretical understanding of the functional relationship between blood pressure and pulse wave signal conduction time.And through imaging photoelectric plethysmography(IPPG),pulse wave signal conduction time of forehead and hand was obtained with ordinary optical camera.First,the pulse wave conduction time was obtained by recording the video with an ordinary optical camera.Second,real-time blood pressure values were collected.Finally,based on the relationship between blood pressure and pulse wave conduction time,a non-contact blood pressure measurement prediction model was obtained through neural network fitting.So that non-contact blood pressure measurement with optical camera could be completed.The method in this paper has several advantages,such as low requirements on measuring equipment,low cost,and simple operation.It can let people get rid of the discomfort caused by measuring equipment such as cuff and can measure blood pressure at any time.The predicted blood pressure results were compared with an Omron wrist electronic sphygmomanometer.The calculated error of systolic blood pressure is-9.28%~3.16%,and the error of diastolic blood pressure is-9.84~4.35%.

Exercise-induced albuminuria and circadian blood pressure abnormalities in type 2 diabetes

AIMTo investigate the relationship between circadian vari-ations in blood pressure （BP） and albuminuria at rest, and during exercise in non-hypertensive type 2 diabetes （T2D） patients.METHODSWe conducted a cross-sectional study in well controlled T2D patients, non-hypertensive, without clinical pro-teinuria and normal creatinine clearance. In each parti-cipant, we recorded the BP using ambulatory bloodTankeu AT et al . Exercise-induced albuminuria and BP in T2DMpressure monitoring （ABPM） for 24-h, and albuminuria at rest and after a standardized treadmill exercise.RESULTSWe enrolled 27 type 2 patients with a median age of 52; and a mean duration of diabetes and HbA1c of 3.6 ± 0.8 years and 6.3% ± 0.5% respectively. Using a 24-h ABPM, we recorded a mean diurnal systolic blood pressure （SBP） of 128 ± 17 mmHg vs nocturnal of 123 ± 19 mmHg （ P = 0.004）, and mean diurnal diastolic blood pressure （DBP） of 83 ± 11 mmHg vs nocturnal 78 ± 14 mmHg （ P = 0.002）. There was a signifcant difference between albuminuria at rest [median = 23 mg, interquartile range （IQR） = 10-51] and after exercise （median = 35 mg, IQR = 23-80, P 〈 0.001）. Patients with exercise induced albuminuria had an increase in nocturnal BP values on all three components （128 mmHg vs 110 mmHg, P = 0.03 for SBP; 83 mmHg vs 66 mmHg, P = 0.04; 106 vs 83, P = 0.02 for mean arterial pressure）, as well as albuminuric patients at rest. Moreover, exercise induced albuminuria detect a less increase in nocturnal DBP （83 vs 86, P = 0.03） than resting albuminuria.CONCLUSIONExercise induced albuminuria is associated with anincrease in nocturnal BP values in T2D patients.

Exercise-induced albuminuria vs circadian variations in blood pressure in type 1 diabetes

AIM To investigated the relationship between exerciseinduced ambulatory blood pressure measurement(ABPM) abnormalities in type 1 diabetes mellitus(T1DM) adolescents. METHODS We conducted a case-control at the National Obesity Center of the Yaoundé Central Hospital, Cameroon. We compared 24 h ABPM and urinary albumin-to-creatinine ratio(ACR) at rest and after a standardized treadmill exercise between 20 Cameroonian T1 DM patients and 20 matched controls. T1 DM adolescents were aged 12-18 years, with diabetes for at least one year, without proteinuria, with normal office blood pressure(BP) and renal function according to the general referencepopulation. Non-diabetic controls were adolescents of general population matched for sex, age and BMI.RESULTS Mean duration of diabetes was 4.2 ± 2.8 years. The mean 24 h systolic blood pressure(SBP) and diastolic blood pressure(DBP) were respectively 116 ± 9 mm Hg in the diabetic group vs 111 ± 8 mm Hg in the nondiabetic(P = 0.06), and 69 ± 7 mm Hg vs 66 ± 5 mm Hg(P = 0.19). There was no difference in the diurnal pattern of BP in diabetes patients and non-diabetic controls(SBP: 118 ± 10 mm Hg vs 114 ± 10 mm Hg, P = 0.11; DBP: 71 ± 7 mm Hg vs 68 ± 6 mm Hg, P = 0.22). Nighttime BP was higher in the diabetic group with respect to SBP(112 ± 11 mm Hg vs 106 ± 7 mm Hg, P = 0.06) and to the mean arterial pressure(MAP)(89 ± 9 mm Hg vs 81 ± 6 mm Hg, P = 0.06). ACR at rest was similar in both groups(5.5 mg/g vs 5.5 mg/g, P = 0.74), but significantly higher in diabetes patients after exercise(10.5 mg/g vs 5.5 mg/g, P = 0.03). SBP was higher in patients having exercise-induced albuminuria(116 ± 10 mm Hg vs 108 ± 10 mm Hg, P = 0.09). CONCLUSION Exercise-induced albuminuria could be useful for early diagnosis of kidney damage in adolescents with T1 DM.

Investigation on the relationship between overpressure and sub-harmonic response from encapsulated microbubbles

Sub-harmonic component generated from microbubbles is proven to be potentially used in noninvasive blood pressure measurement. Both theoretical and experimental studies are performed in the present work to investigate the dependence of the sub-harmonic generation on the overpressure with different excitation pressure amplitudes and pulse lengths. With 4-MHz ultrasound excitation at an applied acoustic pressure amplitude of 0.24 MPa, the measured sub-harmonic amplitude exhibits a decreasing change as overpressure increases; while non-monotonic change is observed for the applied acoustic pressures of 0.36 MPa and 0.48 MPa, and the peak position in the curve of the sub-harmonic response versus the overpres- sure shifts toward higher overpressure as the excitation pressure amplitude increases. Furthermore, the exciting pulse with long duration could lead to a better sensitivity of the sub-harmonic response to overpressure. The measured results are ex- plained by the numerical simulations based on the Marmottant model. The numerical simulations qualitatively accord with the measured results. This work might provide a preliminary proof for the optimization of the noninvasive blood pressure measurement through using sub-harmonic generation from microbubbles.

Pulse palpation and limited joint mobility examination are better indicators than oscillometric measurement for diagnosing abnormal ankle-brachial index

Background: Peripheral artery disease (PAD) is the least recognized form of atherosclerosis and may even result in amputation if the diagnosis is delayed. Manual pulse palpation is the traditional way to diagnose PAD. Doppler ultrasonographic measurement of ankle-brachial index (ABI) is the gold standard diagnosing method but requires training and is not necessarily available as an outpatient procedure. Using automated oscillometric blood pressure devices has been suggested as an easier method for measuring the ABI. Methods: A single observer palpated the arterial dorsalis pedis, examined hand joints and measured the ABI of one hundred diabetic patients using both Doppler and oscillometric methods. The purpose of this study was to compare the oscillometric method and the manual diagnosing methods to the gold standard method of using a hand held Doppler device for measuring the ABI and detecting PAD. Results: ABI was abnormal in 24 patients (24%) (22 males, 2 females) when measured with the Doppler method. Of these 24 patients, the oscillometric method would have missed 12 giving 12 false negatives. We found that the sensitivity of the oscillometric method was 50.0% and specificity 90.8%. Clinical examination with palpation of ADP combined with limited joint mobility (LJM) scoring would have missed only four cases. Conclusions: Although the oscillometric method is easy and accessible, it is not sensitive enough to be used as the only method in measuring ABI. The simple and inexpensive ADP pulse palpation combined with testing for LMJ was able to find 20 of the 24 (83%) patients with an abnormal ABI measured by Doppler stethoscope.

Dynamic changes in intramedullary pressure 72 hours after spinal cord injury

Intramedullary pressure increases after spinal cord injury, and this can be an important factor for secondary spinal cord injury. Until now there have been no studies of the dynamic changes of intramedullary pressure after spinal cord injury. In this study, telemetry systems were used to observe changes in intramedullary pressure in the 72 hours following spinal cord injury to explore its pathological mechanisms. Spinal cord injury was induced using an aneurysm clip at T10 of the spinal cord of 30 Japanese white rabbits, while another 32 animals were only subjected to laminectomy. The feasibility of this measurement was assessed. Intramedullary pressure was monitored in anesthetized and conscious animals. The dynamic changes of intramedullary pressure after spinal cord injury were divided into three stages: stage I(steep rise) 1–7 hours, stage Ⅱ(steady rise) 8–38 hours, and stage Ⅲ(descending) 39–72 hours. Blood-spinal barrier permeability, edema, hemorrhage, and histological results in the 72 hours following spinal cord injury were evaluated according to intramedullary pressure changes. We found that spinal cord hemorrhage was most severe at 1 hour post-spinal cord injury and then gradually decreased; albumin and aquaporin 4 immunoreactivities first increased and then decreased, peaking at 38 hours. These results confirm that severe bleeding in spinal cord tissue is the main cause of the sharp increase in intramedullary pressure in early spinal cord injury. Spinal cord edema and blood-spinal barrier destruction are important factors influencing intramedullary pressure in stages Ⅱ and Ⅲ of spinal cord injury.

可穿戴人体无创血压测量技术

针对传统的连续无创血压测量设备结构复杂、体积大、不宜穿戴、限制患者运动等问题,设计一种可穿戴设备对人体血压进行实时无创测量。通过硬件设备同步获取心电-脉搏波信号,设计信号处理算法,提取特征点用于后续血压估计。应用MIMIC数据中心电-脉搏-血压信号计算脉搏波传导时间及射血前期,并利用最小二乘法进行线性回归分析,构建血压测量模型,实现个性化血压检测算法。实验验证结果表明:采用该技术检测人体血压时,误差的标准差在±8 mmHg(1 mmHg≈133 Pa)范围内,平均绝对误差小于5 mmHg,满足AAMI国际血压计准确性评价标准的要求。

基于BiLRCN和注意力机制的脉搏波血压测量

为了提高无创血压测量的精度,提出了基于双向长期递归卷积网络(Bidirectional Long-term Recurrent Convolutional Network,BiLRCN)和注意力机制的脉搏波血压测量方法。通过2个卷积神经网络(Convolutional Neural Network,CNN)层提取出光电容积脉搏信号的高维度特征,将其作为双向长短期记忆(Bidirectional Long Short-Term Memory,BiLSTM)网络的输入,通过BiLSTM提取输入序列前后向的特征信息进行预测;根据注意力机制自动分配权重的特征,给予重要时刻脉搏特征数据较大的权重,并通过2个全连接层得到血压的测量值。将所提出的方法与CNN、长短期记忆(Long Short-Term Memory,LSTM)网络、BiLSTM网络、长期递归卷积神经网络(Long-term Recurrent Convolutional Network,LRCN)方法进行了收敛速度和血压测量的对比实验。实验结果表明,所提出的方法较LRCN均方误差降低了21.63%,平均绝对误差降低了67.5%,确定性相关系数提高了0.42%。所提出的方法的收敛速度更快、血压测量精度更高。

地奥心血康软胶囊联合依那普利对冠心病合并心房颤动患者血压测量波动性的影响

目的:探讨地奥心血康软胶囊联合依那普利对冠心病合并心房颤动患者血压测量波动性的影响。方法:选取2021年1月~2021年10月就诊于九江市第一人民医院的136例冠心病合并持续性非瓣膜性心房颤动患者,计算分析包括年龄、性别、合并疾病、合并用药等参数在内的各项因素和血压波动的相关性,并就是否联合使用地奥心血康软胶囊在管理血压波动方面的价值进行探索。结果:年龄、性别、合并疾病(高血压、糖尿病、卒中、心力衰竭、高脂血症)、合并用药[血管紧张素转化酶抑制剂(ACEI)、血管紧张素受体拮抗剂(ARB)、β受体阻滞剂、钙离子通道阻滞剂(CCB)、利尿剂、抗凝药、抗血小板药、他汀]与基线水平血压波动之间的相关性差异无统计学意义(P>0.05);在将计算血压波动结点值设置为“6 mmHg”这一前提下,总体研究对象的血压波动达标率为29.4%,联药组在随访过程中的血压波动达标率呈逐渐上升趋势,单药组的血压波动达标率也呈现了波动性,单药组对应时间节点的血压波动达标率较之于联药组均偏低。结论:地奥心血康软胶囊与血压管理具有良好的相关性且能够降低血压的波动性,可以考虑联合依那普利作为降压控压方案。

Real-time human blood pressure measurement based on laser self-mixing interferometry with extreme learning machine

In this paper, we present a method based on self-mixing interferometry combing extreme learning machine for real-time human blood pressure measurement. A signal processing method based on wavelet transform is applied to extract reversion point in the self-mixing interference signal, thus the pulse wave profile is successfully reconstructed. Considering the blood pressure values are intrinsically related to characteristic parameters of the pulse wave, 80 samples from the MIMIC-II database are used to train the extreme learning machine blood pressure model. In the experiment, 15 measured samples of pulse wave signal are used as the prediction sets. The results show that the errors of systolic and diastolic blood pressure are both within 5 mm Hg compared with that by the Coriolis method.

儿科护士血压测量操作的现状调查

目的了解儿科护士血压测量操作现状,为规范儿童血压测量提供依据。方法采用便利抽样法抽取全国18个省、2个自治区、3个直辖市共230所医院的2817名儿科护士,使用自行编制的儿童血压测量操作现状问卷进行调查。结果有效调查2674名;788名(29.47%)护士选择的血压测量设备在儿童中经过验证;2037名(76.18%)护士根据儿童上臂围选择袖带型号,但1669名(62.42%)护士测量上臂围方法错误;护士血压测量次数及数值报告方法各异,甚至有17.31%的护士仅测量1次血压就取读数。结论儿童血压测量操作临床实践差异较大,需制定儿童血压测量规范化操作流程及标准,加强儿童血压测量技术的培训及推广,以提高儿科护士进行血压测量操作的规范性。

一款无创连续血压测量设备研制及其准确性验证

目的:研制一款无创连续血压测量设备NC-BPM型并验证其监测血压的准确性。方法:研制一款NC-BPM型无创连续血压测量设备(简称NC-BPM),整套设备系统主要由指套传感器、信号采集和压力控制单元、高度校正系统和主机4个模块组成。使用欧姆龙J760电子血压计(简称J760)和CNAP Monitor 500连续无创血压监测系统(简称CNAP Monitor 500)作为监测血压准确性验证的参考血压计,按照美国电气和电子工程师协会(IEEE)有关可穿戴无袖带血压测量装备标准测试流程,分别测量25名受试者静态期、血压变化期和校准后期3个阶段的血压,验证NC-BPM测量血压的准确性。结果:使用NCBPM与CNAP Monitor 500均采集到13753个数据点,两种仪器测得收缩压(SBP)、舒张压(DBP)及平均血压(MAP)具有高度相关性(r=0.96、0.97、0.98,P<0.05);欧姆龙J760采集到379个数据点,NC-BPM与欧姆龙J760测得SBP和DBP数据亦有高度相关性(r=0.98、0.95,P<0.05)。按照英国高血压协会(BHS)和美国医疗仪器促进协会(AAMI)标准的等级评价,NCBPM与CNAP Monitor500的SBP差值在0~5 mmHg、0~10 mmHg和0~15 mmHg范围内的占比分别为85.01%、97.60%和99.47%,DBP占比分别为84.34%、99.85%和100%,MAP占比分别为92.66%、99.72%和99.96%,三者均属BHS标准A级;两种仪器测量的指动脉SBP、DBP和MAP压差值分别为(0.67±5.07)mmHg、(2.43±2.87)mmHg和(1.43±2.89)mmHg,均在AAMI标准(5±8)mmHg范围内。NC-BPM与欧姆龙J760的SBP差值0~5 mmHg、0~10 mmHg和0~15 mmHg范围内占比分别为79.95%、97.36%和100%,DBP占比分别为89.71%、99.74%和100%,两者均属BHS标准A级;两种仪器测量的肱动脉收缩压、舒张压差值分别为(1.57±4.18)mmHg、(0.57±5.20)mmHg,均在AAMI标准(5±8)mmHg范围内。结论:NC-BPM设备已通过了IEEE标准下AAMI标准的第一阶段临床试验,可进行下一阶段临床验证试验。

上海市护理学会《有创动脉血压监测方法》团体标准解读

上海市护理学会于2023年11月发布了《有创动脉血压监测方法》团体标准,规范了成人和儿童有创动脉血压的监测方法,包括基本要求、监测对象、测量通路、测量方法、操作要点、导管维护与观察及并发症预防。文章对标准中给出的建议进行解读,以期帮助各类医疗机构护士更好地理解并应用该标准。

诊室血压自动传输系统对血压末位偏好的影响

目的:了解诊室血压自动传输系统对高血压患者血压末位偏好的影响。方法:从上海市闵行区莘庄社区卫生服务中心20375例高血压患者的慢性病管理平台中,获得随访日期为2020年10月1日—2021年4月30日共47846条随访数据。按照不同的血压采集方式分为手工录入的常规测量血压组、自动采集和标准化测量的诊室血压自动传输组,对收缩压和舒张压末位血压数字进行分析。结果:常规测量血压组的收缩压和舒张压中末位读数为0的记录占比分别为20.8%、25.4%,诊室血压自动传输组的收缩压和舒张压中末位读数为0的记录占比分别为9.7%、10.1%。常规测量血压组和诊室血压自动传输组在不同水平血压记录的末位读数分布不同,当收缩压处于136~145 mmHg(1 mmHg=0.133 kPa),舒张压处于86~95mmHg,常规测量血压组的以0结尾和以1~5结尾的血压读数记录占比达到最低,以6~9结尾的血压读数记录占比达到最高。诊室血压自动传输组的血压记录中,0末位的记录比例基本在10.0%左右,与预期频率分布相符。结论:在社区卫生服务中心的高血压患者管理中使用电子血压自动传输系统可以消除血压末位偏好,规避高血压治疗目标血压值对血压末位偏好的影响。因此,诊室电子血压自动传输系统在社区卫生服务中心高血压管理中是值得推广的血压测量方式。