Relationship between blood pressure index and cognition in older adults.

OBJECTIVE: We aimed to examine the contributions of blood pressure index (BPI) and other measurements to cognitive function in older adults. METHOD: Four hundred sixty-six subjects aged over 65 who applied to the outpatient Geriatric Clinics of Gulhane Training and Research Hospital were enrolled in the study. Demographics and clinical conditions were collected from their files. Pulse pressure index (PP) (SBP - DBP), mean arterial pressure index (MAP) [(SBP + DBP x 2)/3] and BPI (SBP/DBP) were recorded. We used the Mini-mental state examination (MMSE) test for evaluating global cognition. We classified participants into two groups based on MMSE score: normal with a score of 27 or more and lower cognitive function with a 26 or lower cognitive function. RESULTS: 31% of subjects (n = 143) had lower and 69% (n = 323) had normal cognitive function. When compared blood pressure measurements between groups, BPI and PP were higher in the subjects with lower cognitive function [BPI: 1.78 ± 0.25 vs. 1.71 ± 0.23, p = .007 and PP: 58.97 ± 17.59 vs. 54.05 ± 15.38, p = .009]. After adjustment for confounders, a 2.545 fold increased risk of cognitive decline was observed among subjects with higher BPI when compared to those with normal (OR: 2.545, 95%CI: 1.024-6.325, p = .044). CONCLUSION: The findings suggest that BPI is an associated with cognition in older adults and may a novel alternative marker for identifying the subjects at the risk of dementia.

Ambulatory heart rate reduction after catheter-based renal denervation in hypertensive patients not receiving anti-hypertensive medications: data from SPYRAL HTN-OFF MED, a randomized, sham-controlled, proof-of-concept trial.

AIMS: The randomized sham-controlled SPYRAL HTN-OFF MED trial demonstrated that renal denervation (RDN) using a multi-electrode catheter lowers ambulatory blood pressure (BP) in non-medicated hypertensive patients. The current report describes the effects of RDN on heart rate (HR) in this population. METHODS AND RESULTS: Patients were enrolled with an office systolic BP (SBP) of ≥150 mmHg and <180 mmHg, office diastolic BP (DBP) of ≥90 mmHg, and a mean ambulatory SBP of ≥140 mmHg and <170 mmHg. Patients were drug naïve or removed from their anti-hypertensive medications. Eighty patients were randomized 1:1 to RDN or sham procedure. This post hoc analysis examines the effect at 3 months of RDN on HR and of high baseline 24-h HR on BP and HR changes. There was a significant reduction in 24-h HR at 3 months for the RDN group (-2.5 b.p.m.) compared with sham (-0.2 b.p.m.), P = 0.003 (analysis of covariance). Mean baseline-adjusted treatment differences were significantly different between groups at 3 months for average morning HR (-4.4 b.p.m., P = 0.046) and minimum morning HR (-3.0 b.p.m., P = 0.026). RDN patients with baseline 24-h HR above the median (73.5 b.p.m.) had significant reductions in average ambulatory SBP (-10.7 mmHg difference, P = 0.001) and DBP (-7.5 mmHg, P < 0.001), whereas BP changes in RDN patients with below-median HRs were not significant. CONCLUSION: Average and minimum morning HR were significantly reduced at 3 months for RDN compared with sham patients. A baseline 24-h HR above the median predicted greater BP reductions and may allow physicians to select patients likely to respond to the procedure.

Directly observed therapy prior to ambulatory blood pressure measurement (DOT-HTN) in uncontrolled hypertensive patients - Effect on blood pressure, safety and patient perception.

Aims: Non-adherence to medication is a key challenge in treatment of hypertensive patients. Directly Observed Therapy prior to ambulatory blood pressure measurement (DOT-HTN) is relatively new in hypertension research and knowledge about its use and patients' perception of such control is warranted. We aimed to investigate DOT-HTN in relation to blood pressure control, procedural safety and patients' perception. Methods and results: Twenty patients with uncontrolled hypertension (daytime systolic ambulatory blood pressure measurement (ABPM) ≥135 mm Hg) were randomized to intervention with DOT-HTN and a visual analogue scale (VAS) assessment if they found DOT-HTN problematic (10 cm = very problematic), or to standard ABPM. They were followed for 2-4 weeks. There were no differences in baseline characteristics. Despite no difference in daytime systolic ABPM (p = 0.67) two patients were suggested to be non-adherent after DOT-HTN with reductions in daytime systolic ABPM of 18 and 22 mm Hg, respectively. No post DOT-HTN adverse reactions were reported. VAS assessment indicated that the patients had no problem being controlled (VAS median 0.30 cm (0.0-2.6)), however interesting comments and observed behaviour questioned the reliability of the patient-reported VAS in 38% of patients. Conclusions: Two of eight patients seemed to be non-adherent after DOT-HTN. Descriptive findings suggested reluctance towards control with DOT-HTN not captured by the VAS assessment. No DOT-related medical adverse-effects were reported.

Impacts of Predischarge Diastolic Functional Recovery on Clinical Outcomes in Patients With Hypertensive Heart Failure.

BACKGROUND: Diastolic function is an independent predictor of death in heart failure (HF), but the effect of a change in diastolic function during hospitalization on clinical outcomes in patients with hypertensive HF (HHF) has been poorly studied. Therefore, the aim of this study was to investigate the effect of predischarge diastolic functional recovery (DFR) on future clinical outcomes in hospitalized patients with a first diagnosis of HHF.Methods and Results:A total of 175 hospitalized patients with HHF were divided into 2 groups according to the change in diastolic function on predischarge echocardiography in comparison with baseline echocardiography: DFR group (n=74, 54.2±17.1 years, 55 males) vs. no DFR group (n=101, 59.1±16.8 years, 72 males). During 66.5±37 months of clinical follow-up, major adverse cardiac events (MACE) occurred in 89 patients: 85 HF rehospitalizations, 4 deaths, no MI. The number of MACE were significantly higher in the no DFR group than in the DFR group (61.6% vs. 32.4%, P<0.001). Predischarge systolic functional recovery was not a predictor of MACE, but impaired DFR was an independent predictor of MACE (RR=2.952, P=0.010, confidence interval, 1.878-6.955). CONCLUSIONS: Impaired predischarge DFR, regardless of the type of HF or predischarge systolic functional recovery, is an independent predictor of future MACE in HHF. Changes in diastolic function should be carefully monitored and would be useful in risk stratification of HHF.

Aortic Stiffness in Aging and Hypertension: Prevention and Treatment with Habitual Aerobic Exercise.

PURPOSE OF REVIEW: Habitual aerobic exercise is associated with lower aortic stiffness, as measured by carotid-femoral pulse wave velocity (CFPWV), in middle-aged/older adults without hypertension, but beneficial effects of aerobic exercise on CFPWV in hypertension remain contraversial. Therefore, the focus of this review is to discuss the evidence for and against the beneficial effects of aerobic exercise on aortic stiffness in middle-aged and older adults with hypertension, possible limitations in these studies, and highlight novel directions for future research. RECENT FINDINGS: Most randomized controlled intervention studies demonstrate that short-term aerobic exercise results in no reductions in CFPWV in middle-aged and/or older adults with treated or treatment-naïve hypertension. Higher aerobic fitness is not associated with lower aortic stiffness among older adults with treated hypertension. Aortic stiffness appears to be resistant to clinically relevant improvements in response to habitual aerobic exercise in the presence of hypertension among middle-aged and older adults.

The Effect of Xanthine Oxidase Inhibitors on Blood Pressure and Renal Function.

Several epidemiological studies have demonstrated the existence of a correlation between high serum uric acid (SUA) levels, hypertension, and chronic kidney disease (CKD). Xantine oxidase inhibitors (XOI) are the most powerful uric acid lowering drugs, with presumed beneficial effects on cardiovascular and renal system. The multifactorial mechanism linking hyperuricemia with cardiovascular and renal diseases involves both the SUA level and the xanthine oxidase (XO) activity. In this context, the clinical research has been recently focused at assessing the efficacy of urate-lowering drugs active on XO in patients with abnormal blood pressure values and renal dysfunction. The mechanism of action responsible for the beneficial effect of XOI has not completely elucidated, and long-term studies involving large population samples are needed. In particular, XOI could play an important role in the management of hypertension and CKD, especially in patients not entirely controlled by conventional therapies. In the present review, we summarize the results of recent clinical trials that largely support a positive effect of allopurinol and febuxostat on blood pressure, glomerular filtration rate (GFR), and serum creatinine in different populations of patients. Will these drugs be considered a reliable choice or alternative to currently used drugs for the hypertension and kidney failure treatment? The debate is open, but much evidence is accumulating and supporting this role.

Blood Pressure Variability in Patients with Diabetes Mellitus with Hypertension: Treatment Recommendations and Role of Amlodipine.

Recently, blood pressure variability (BPV) has gained focus owing to its role in predicting cardiovascular (CV) outcomes. Additionally, alterations in BPV contribute to the progression of end organ damage and trigger vascular events in hypertensive patients. Therefore, amelioration of BPV is considered a potentially important target and different classes of drugs are used to achieve the desired blood pressure (BP) goal. Based on several studies and clinical trials, treatments with CCB such as amlodipine have been found to be most effective in the management of BPV in hypertensive patients with diabetes. Growing evidence substantiates the role of amlodipine in significant reduction of BPV, thus, lowering the risk of diabetes related complications. This review sheds light on the importance of BPV reduction and the effectiveness of amlodipine in preventing cardiovascular morbidity and mortality in hypertensive patients with diabetes.

[Optimization of Control of Blood Pressure, Metabolic Disorders and Target Organs Protection With Fixed Perindopril and Indapamide Combination in Treated Patients With Arterial Hypertension].

PURPOSE: to assess the potential of fixed perindopril/indapamide combination (FPIC) to improve angioprotection in patients with arterial hypertension (AP) with various efficacy of preceding therapy with combination of losartan and hydrochlorothiazide (HCTZ). MATERIAL AND METHODS: We included in this open study 50 patients with AP divided into two equal-sized groups in dependence on the achievement of target blood pressure (BP) less than 140/90 mm Hg on preceding therapy with losartan (100 mg) and HCTZ (12.5 mg). All patients underwent ambulatory BP monitoring (ABPM), applanation tonometry (assessment of augmentation index and central blood pressure), measurement of pulse wave velocity (PWV), laboratory tests (lipid profile, fasting glucose, HOMA index, homocysteine, leptin, adiponectin, high sensitivity C reactive protein [hsCRP]). Study duration was 12 weeks. RESULTS: Treatment with FPIC in patients not at target BP provided 14.5 and 6.6% reduction of systolic and diastolic BP (SBP and DBP), respectively (p<0.01), while in patients with target BP it was associated with additional reductions of SBP and DBP by 3.9 and 5.4%, respectively (p<0.01). According to ABPM data average day- and nighttime SBP decreased by 16.9 and 15.0%, average day- and nighttime DBP - by 10.6 and 13.6% (p<0.01) in the group of patients not at target BP. Reductions of PWV (by 15.2 and 2.2%), augmentation index (by 10.7 and 9.4%), central SBP (by 10.9 and 2.1%), central pulse BP vascular age (by 8.7 and 6.0%) were observed in groups of patients without and with target BP on preceding therapy, respectively (p<0.01). Leptin level decreased by 10.0 and 14.4%, hsCRP - by 17.7 and 11.0%; while level of adiponectin increased by 6.7 and 9.9% (p<0.01). CONCLUSION: Our results demonstrated advantages of FPIC over losartan+HCTZ combination relative to BP control, improvement of arterial elasticity, alleviation of insulin resistance and inflammation.

Cold Pressor Test in Borderline Hypertensive University Students.

Background Hyperactive sympathetic reaction is an important factor for development of hypertension in young individuals. The stress induced increase in blood pressure recovers within very short period of time and those with exaggerated stress induced cardiovascular response at young age have a high risk of blood pressure elevation in future. Objective To determine the cardiovascular reactivity in response to cold and to correlate its relation with factors such as smoking, family history and physical activity. Method Study was conducted in the Department of Pharmacy, Kathmandu University from July to November, 2015. Resting blood pressure was recorded using sphygmomanometer in sitting position after 5 minutes of rest. Out of 130 volunteers, 34 were found to be prehypertensive and equal number of normotensive were recruited randomly to perform the test. The subjects were directed to immerse his/her right hand up to the wrist in cold water of 10˚C for 1 minute. The blood pressure was recorded just before the hand was taken out of the water and then 1.5 minutes and 4 minutes after the withdrawal. Data was analyzed by Student's t test using Microsoft Excel 2007. Result Systolic and diastolic blood pressure increased significantly after cold pressor test in both normal (systolic blood pressure from 110±6.46 to 119±9.45 mmHg and diastolic blood pressure from 71±4.63 to 78±6.15 mmHg) and prehypertensive group (systolic blood pressure from 122±6.75 to 126±8.05 mmHg and diastolic blood pressure from 79±6.78 to 85±7.76 mmHg). Maximum recovery in both systolic and diastolic blood pressure was observed in 2.5 minutes of removal of hand from cold water. Though sharp drop was observed in blood pressure at the end of 2.5 minute in both groups of individuals, the recovery in case of prehypertensive individual was not sharper. In the present study, significant rise in diastolic blood pressure was observed in prehypertensive smoking males. Also the difference was significant (p<0.02) in recovery of diastolic blood pressure between smoker and non smoker prehypertensive group. Conclusion This study suggests that prolonged elevation in blood pressure in response to stress in young individual can be used as marker of development of hypertension in future. Adopting a healthier lifestyle can help to delay the development of hypertension in later life.

Effect of childhood obesity prevention programs on blood pressure: a systematic review and meta-analysis.

BACKGROUND: Childhood overweight and obesity are associated with elevated blood pressure (BP). However, little is known about how childhood obesity lifestyle prevention programs affect BP. We assessed the effects of childhood obesity prevention programs on BP in children in developed countries. METHODS AND RESULTS: We searched databases up to April 22, 2013, for relevant randomized, controlled trials, quasi-experimental studies, and natural experiments. Studies were included if they applied a diet or physical activity intervention(s) and were followed for ≥ 1 year (or ≥ 6 months for school-based intervention studies); they were excluded if they targeted only overweight/obese subjects or those with a medical condition. In our meta-analysis, intervention effects were calculated for systolic BP and diastolic BP with the use of weighted random-effects models. Of the 23 included intervention studies (involving 18 925 participants), 21 involved a school setting. Our meta-analysis included 19 studies reporting on systolic BP and 18 on diastolic BP. The pooled intervention effect was -1.64 mm Hg (95% confidence interval, -2.56 to -0.71; P=0.001) for systolic BP and -1.44 mm Hg (95% confidence interval, -2.28 to -0.60; P=0.001) for diastolic BP. The combined diet and physical activity interventions led to a significantly greater reduction in both systolic BP and diastolic BP than the diet-only or physical activity-only intervention. Thirteen interventions (46%) had a similar effect on both adiposity-related outcomes and BP, whereas 11 interventions (39%) showed a significant desirable effect on BP but not on adiposity-related outcomes. CONCLUSIONS: Obesity prevention programs have a moderate effect on reducing BP, and those targeting both diet and physical activity seem to be more effective.

Effects of exercise training on arterial stiffness in older hypertensive females.

PURPOSE: Regular physical exercise is recommended for the prevention and treatment of cardiovascular disease. However, it is unclear whether the effects of exercise training on arterial stiffness are the same in older hypertensive individuals as those observed in older healthy subjects. The aim of this study was to compare the effects of exercise training on arterial stiffness between older hypertensive and healthy females. METHODS: Ninety-two females with untreated hypertension and 108 healthy females were randomly assigned to either the control group or to participate in a 12-week training program. In the training groups, the subjects engaged in 90 min of training twice a week for 12 weeks. Each training program included recreational activities, six to eight resistance exercises for circuit training and chair-based exercise for the lower extremities. The systolic/diastolic blood pressure (SBP/DBP) and brachial to ankle pulse wave velocity (baPWV) were obtained in the supine position using an automatic pulse wave form analyzer. RESULTS: Compared with that observed in the control group, greater reductions in the baPWV and SBP/DBP were achieved in both training groups (P < 0.05). Furthermore, a significant difference in the delta baPWV values obtained before and after training was noted between the hypertensive (-72.5 ± 8.1 cm s(-1)) and healthy females (-131.5 ± 107.3 cm s(-1)) who participated in the training program (P < 0.05). CONCLUSIONS: These data indicate that exercise training produces fewer improvements in arterial stiffness in older hypertensive females than in older healthy females.

Validity of clinic blood pressure compared to ambulatory monitoring in hypertensive patients in a primary care setting.

AIMS: To determine the validity of the blood pressure (BP) measurement in a primary care setting in comparison with the measurement obtained from 24-h ambulatory blood pressure monitoring (ABPM). METHODS: Patients with hypertension (n = 137) were studied in primary care. Immediately after a nurse took two measurements of each patient's BP, the ABPM device was attached. Agreement was determined using the Bland-Altman method and the Kappa index. The sensitivity, specificity, predictive values and likelihood ratios were calculated for the manual BP measurement in comparison with ABPM for the purpose of diagnosing uncontrolled BP. RESULTS: The BP values from ABPM were lower than those obtained in the examination room. The difference between the clinic measurement and the ABPM was 18.07 ± 14.6 mmHg (systolic blood pressure, SBP) and 6.3 ± 9.2 mmHg (diastolic blood pressure, DBP). The agreement between the clinic measurement and 24h-ABPM for the purpose of classifying control or uncontrolled BP was 64.2% (Kappa = 0.311). In the case of ABPM, the sensitivity of the measurement in the examination room for diagnosing uncontrolled BP was 80.36%, specificity was 53.09%, positive predictive value 54.22% and negative predictive value 70.63%. CONCLUSIONS: Clinic measurements do not have sufficient sensitivity/specificity to be recommended as a single method of BP control in primary care.

[Interventional hypertension therapy in diabetes mellitus. Effects on blood pressure and glucose metabolism?]. / Interventionelle Hypertonietherapie bei Diabetes mellitus. Effekte auf Blutdruck und Glukosestoffwechsel?

Hypertension is the most common chronic cardiovascular disease with increasing prevalence all over the world. Despite the availability of many effective antihypertensive drugs, blood pressure control to target values remains low. In the pathophysiology of therapy resistant hypertension, increased activity of the sympathetic nervous system with an imbalance between sympathetic and parasympathetic activity has been identified as a main contributor to the development and maintenance of hypertension. Catheter-based denervation of the renal sympathetic nerves has been described as reducing blood pressure and decreasing sympathetic activity in patients with resistant hypertension. Supplementary beneficial effects on common cardiovascular comorbidities, such as diabetes type 2, have been reported. The present review aims to give an overview about percutaneous renal denervation for treatment of hypertension and potential new therapeutic options to improve glycemic control.

Hypertension, brain damage and cognitive decline.

Loss of cognitive function is one the most devastating manifestations of ageing and vascular disease. Cognitive decline is rapidly becoming an important cause of disability worldwide and contributes significantly to increased mortality. There is growing evidence that hypertension is the most important modifiable vascular risk factor for development and progression of both cognitive decline and dementia. High blood pressure contributes to cerebral small and large vessel disease resulting in brain damage and dementia. A decline in cerebrovascular reserve capacity and emerging degenerative vascular wall changes underlie complete and incomplete brain infarcts, haemorrhages and white matter hyperintensities. This review discusses the complexity of factors linking hypertension to brain functional and structural changes, and to cognitive decline and dementia. The evidence for possible clinical markers useful for prevention of decreased cognitive ability, as well as recent data on vascular mechanism in the pathogenesis of cognitive decline, and the role of antihypertensive therapies in long-term prevention of late-life cognitive decline will be reviewed.

Aortic elastic properties : effects of carvedilol versus nebivolol.

OBJECTIVES: The aim of this study was to compare the effects of the new generation ß-blocker anti-hypertensive drugs carvedilol and nebivolol on aortic elastic properties which are important indicators of hypertension-related morbidity and mortality. METHODS: A total of 50 patients who had been diagnosed with stage 1 hypertension according to the Joint National Committee (JNC) VII criteria and who had not received any anti-hypertensive treatment were enrolled in this study. Patients were randomized to receive either 25 mg/day carvedilol (n=25) or 5 mg/day nebivolol (n=25) for 3 months at the beginning of the study. Three patients (1 in the carvedilol group, 2 in the nebivolol group) who did not attend 3 month follow-up measurements were excluded from the study. The study was completed with 47 patients (25 women; mean age: 49 ± 9 years). The aortic elastic parameters such as aortic strain (AS), aortic distensibility (AD), and aortic stiffness index (ASI) were measured by echocardiography. RESULTS: Carvedilol and nebivolol provided a similar decline in both systolic and diastolic blood pressures (-12/-7 mmHg, p<0.0001 and -12/-7 mmHg, p=0.002, respectively). Both carvedilol and nebivolol induced a significant decrease in heart rate (-15 bpm, p<0.0001, -17 bpm, p<0.0001, respectively). Even though the heart rate at the end of the treatment was lower for the nebivolol group, the rate of decrease of heart rates between carvedilol and nebivolol groups was not statistically significant (p=0.074). Both groups demonstrated improvements in the diastolic functions of the left ventricle where certain values showed more improvement for the nebivolol group. Both groups showed improvements in AS and AD rates compared to basal rates; however, these improvements were not statistically significant. Although the improvement rates in AS, AD, and ASI were higher in the nebivolol group compared to the carvedilol group, the differences were not statistically significant (p=0.091, p=0.095, p=0.259, respectively). CONCLUSION: Both carvedilol and nebivolol induced a decrease in blood pressure and heart rate and showed an improvement in left ventricular diastolic functions. It was observed that both drugs did not cause deterioration in the aortic elastic properties but a slight improvement was seen. However, this improvement was not statistically significant. The improvement was more explicit in the nebivolol group. It may be concluded that nebivolol is slightly superior to carvedilol in reducing heart rate and improving left ventricular diastolic functions. However, further long-term studies with larger sample sizes should be performed in order to better define the effects of both drugs.

Small vessel disease and memory loss: what the clinician needs to know to preserve patients' brain health.

Small vessel disease (SVD) in the brain manifests in the periventricular and deep white matter and radiographically is described as "leukoaraiosis". It is increasingly recognized as a cause of morbidity from middle age onward and this clinical relevance has paralleled advances in the field of neuroradiology. Overall, SVD is a heterogenous group of vascular disorders that may be asymptomatic, or a harbinger of many conditions that jeopardize brain health. Management and prevention focuses on blood pressure control, lifestyle modification, and symptomatic treatment.

Effects of a web-based patient activation intervention to overcome clinical inertia on blood pressure control: cluster randomized controlled trial.

BACKGROUND: Only approximately half of patients with hypertension have their blood pressure controlled, due in large part to the tendency of primary care providers (PCPs) not to intensify treatment when blood pressure values are elevated. OBJECTIVE: This study tested the effect of an intervention designed to help patients ask questions at the point of care to encourage PCPs to appropriately intensify blood pressure treatment. METHODS: PCPs and their patients with hypertension (N=500) were recruited by letter and randomized into 2 study groups: (1) intervention condition in which patients used a fully automated website each month to receive tailored messages suggesting questions to ask their PCP to improve blood pressure control, and (2) control condition in which a similar tool suggested questions to ask about preventive services (eg, cancer screening). The Web-based tool was designed to be used during each of the 12 study months and before scheduled visits with PCPs. The primary outcome was the percentage of patients in both conditions with controlled blood pressure. RESULTS: Of 500 enrolled patients (intervention condition: n=282; control condition: n=218), 418 (83.6%) completed the 12-month follow-up visit. At baseline, 289 (61.5%) of participants had controlled blood pressure. Most (411/500, 82.2%) participants used the intervention during at least 6 of 12 months and 222 (62.5%) reported asking questions directly from the Web-based tool. There were no group differences in asking about medication intensification and there were no differences in blood pressure control after 12 months between the intervention condition (201/282, 71.3%) and control condition (143/218, 65.6%; P=.27) groups. More intervention condition participants discussed having a creatinine test (92, 52.6% vs 49, 35.5%; P=.02) and urine protein test (81, 44.8% vs 21, 14.6%; P<.001), but no group differences were observed in the rate of testing. The control condition participants reported more frequent discussions about tetanus and pneumonia vaccines and reported more tetanus (30, 13.8% vs 15, 5.3%; P=.02) and pneumonia (25, 11.5% vs 16, 5.7%; P=.02) vaccinations after 12 months. CONCLUSIONS: The use of an interactive website designed to overcome clinical inertia for hypertension care did not lead to improvements in blood pressure control. Participant adherence to the intervention was high. The control intervention led to positive changes in the use of preventive services (eg, tetanus immunization) and the intervention condition led to more discussions of hypertension-relevant tests (eg, serum creatinine and urine protein). By providing patients with individually tailored questions to ask during PCP visits, this study demonstrated that participants were likely to discuss the questions with PCPs. These discussions did not, however, lead to improvements in blood pressure control. TRIAL REGISTRATION: ClinicalTrials.gov NCT00377208; http://clinicaltrials.gov/ct2/show/NCT00377208 (Archived by WebCite at http://www.webcitation.org/6IqWiPLon).

Pivotal factors interfering in 24-hour blood pressure fluctuation and arterial stiffness in a community of Chinese elderly hypertensive patients.

AIMS AND OBJECTIVES: To explore which sociodemographic and clinical factors could interfere in the parameters of ambulatory blood pressure monitoring and determine the affecting factors of Ambulatory Arterial Stiffness Index. BACKGROUND: Although the clinical relevance of ambulatory blood pressure monitoring and Ambulatory Arterial Stiffness Index have been studied, the explanation of their role and related interfering factors remains controversial in patients with different disease or age, etc. DESIGN: Cross-sectional study. METHODS: The study was carried out between October 2008-October 2009. A convenience sample of hypertensive patients over 60 years old was recruited in China. Twenty-four hour ambulatory blood pressure monitoring was carried out on the non-dominant arm using an oscillometric device. RESULTS: (1) All 95 patients completed the study and their ages ranged from 60-76 years. (2) There were statistical differences for certain parameters of ambulatory blood pressure monitoring between different characteristics of patients. Financial status was an important factor interfering in patients' BP fluctuation, especially daytime and 24 hours systolic pressure. The higher body mass index the patients had, the higher the pressure was. (3) Multiple variants logistic analysis of Ambulatory Arterial Stiffness Index showed statistical differences only in coefficient variation of 24-hour diastolic pressure and daytime systolic blood pressure. CONCLUSIONS: There are more factors that interfered with systolic pressure and diastolic pressure during the day than night. Patients who have less nocturnal dipping may have a higher night time systolic pressure and diastolic pressure. The coefficient of variation of 24 hours diastolic pressure and daytime systolic pressure contribute more to Ambulatory Arterial Stiffness Index which should arouse practitioners' attention. RELEVANCE TO CLINICAL PRACTICE: Ambulatory blood pressure monitoring should be used as a routine procedure, as well as Ambulatory Arterial Stiffness Index calculated for older hypertensive patients. The findings may be used to guide community health providers to pay more attention to the factors that may influence BP fluctuation and Ambulatory Arterial Stiffness Index according to individual's characteristics.

The effect of acupuncture on high blood pressure of patients using antihypertensive drugs.

Blood pressure control is an important component of cardiovascular disease prevention. Despite the advances in the treatment of hypertension; effective management remains poor. The combined use of multiple drug strategies fail to regulate blood pressure and chronic use of those agents cause severe side-effects. New strategies are required to control high blood pressure. We aim in our study to research the effects of acupuncture treatment on blood pressure of hypertensive patients who have already been exposed to antihypertensive drug therapy for at least 24 months. Each patient was using 1-3 antihypertensive drug of a heterogeneous pharmacological group ranging from ACE inhibitors, diuretics, and beta blockers and the most common complaint of those patients were fatigue, dizziness, weakness, headache and joint pain, sleeping problems, cold hands and feet, edema, depression. We did not alter patients' diet (salt intake), physical activity or use of antihypertensive drugs. The study includes 24 male and 10 female patients. Ki 3 (Taixi), Liv 3 (Taichong), Sp 9 (Yinlingquan), L.I. 4 (Hegu), Ht 7 (Shenmen), St 36 (Zusanli), Sp 6 (Sanyinjiao), Ki 7 (Fulio), Lu 9 acupuncture points were needled. After being treated with acupuncture for one month in every two days for a total of 15 sessions, we found significant reductions (p ? 001) in both systolic (from 163.14 +/- 19.33 to 129.49 +/- 18.52) and diastolic (from 94.37 +/- 19.70 to 79.31 +/- 7.87) blood pressures of these patients. The aim here is not to compare the effectiveness of acupuncture and drug therapy on blood pressure, but to simply report that on patients currently using antihypertensive medication, acupuncture facilitated a significant reduction in blood pressure and reduced the patients complaints. We therefore conclude that our data strongly suggest that acupuncture should be in the hypertension treatment guidelines and widely used for blood pressure regulation.