Reduction In Mean Blood Pressure Research Articles

Effects of glucagon-like peptide-1 receptor agonists on blood pressure in overweight or obese patients: a meta-analysis of randomized controlled trials.

Glucagon-like peptide-1 receptor agonists are novel medications with proven efficacy in treating type 2 diabetes mellitus, and are increasingly being used for weight loss. They may potentially have benefit in treating metabolic disorders; however, evidence is sparse with regards to treating high blood pressure (BP). We performed a systematic review, meta-analysis and meta-regression investigating the efficacy of GLP-1 RAs in lowering BP in obese or overweight patients. Three electronic databases (PubMed, EMBASE, and CENTRAL) were systematically searched for randomized controlled trials (RCTs) published from inception to 13 February 2024. Pair-wise meta-analysis and random effects meta-regression models were utilized. Fixed effects meta-regression was used to unify treatment effects across different GLP-1 RA doses. We included a total of 30 RCTs with a combined population of 37 072 patients. GLP-1 RAs demonstrated a mean systolic BP (SBP) reduction of -3.37 mmHg [95% confidence interval (CI) -3.95 to -2.80] and a mean diastolic BP (DBP) reduction of -1.05 mmHg (95% CI -1.46 to -0.65) compared with placebo. This effect was consistent across subgroups for diabetic status, formulation of GLP-1 RA, follow-up duration and route of administration for both SBP and DBP, with the exception of subgroups investigating exenatide. Meta-regression suggested no significant correlation between BP reduction and baseline characteristics such as age, percentage of male patients, HbA1c, weight, BMI, and percentage of patients with hypertension. Our meta-analysis suggests significant BP reduction benefits from GLP-1 RA use in obese or overweight patients, consistent across diabetic status, duration of treatment, and across route of administration.

Impact of Vietnam-era G.I. Bill eligibility on later-life blood pressure distribution: evidence from the Vietnam draft lottery natural experiment.

We quantified the impact of Vietnam-era G.I Bill eligibility, which subsidized college education for eligible Veterans, on the later-life blood pressure distribution by exploiting the Vietnam draft lottery natural experiment. We restricted Health and Retirement Study data (2006-2018) to men born between 1947-1953 (N=1,970). We estimated intention-to-treat effects at the mean and 1st-99th quantiles of blood pressure using linear and quantile regressions. Our outcomes were systolic blood pressure (SBP), diastolic blood pressure (DBP), hypertension, and self-reported stroke. We proxied G.I. Bill eligibility using lottery-defined draft eligibility. We also conducted analyses stratified by childhood socioeconomic status (cSES) defined based on a previously validated measure. Draft eligibility reduced mean blood pressure outcomes (e.g., effect on SBP: -1.33 [95% confidence interval (CI) -2.85, 0.19]). Draft eligibility also had larger protective effects at higher quantiles of the SBP and DBP distributions relative to lower quantiles (effects on SBP at the 10th and 90th quantiles: -0.33mmHg [95% CI -2.35,1.68]; -3.00mmHg [95% CI -5.68,-0.32]). Draft eligibility had protective effects on blood pressure among low and medium cSES men but opposite effects among high cSES men. G.I. Bill eligibility reshaped the blood pressure distribution to one of lower morbidity risk, particularly among low and medium cSES men.

P105 RENAL DENERVATION WITH SPYRAL SIMPLICITY SYSTEM: A SINGLE CENTER EXPERIENCE IN COLOMBIA

Background and Objectives: Hypertension is the leading cause of death with 10,4 million deaths and 218 disability adjusted life years (DALYs) worldwide in 2017. Despite GDMT, about 10 to 20% of hypertensive subjects will be poorly controlled, meeting the definition for difficult to treat (DTTH) and refractory hypertension (RH). Renal denervation (RDN) with Spyral Simplicity SystemTM has become a promising nonpharmacological treatment for DTTH and RH, and it has shown to be an effective and safe procedure for RH patients in randomized clinical trials with up to 12 months follow-up. Methods: This is a single-center registry including 6 adults with DTTH and RH confirmed by ABPM and without secondary hypertension, underwent RDN in a tertiary hospital in Bucaramanga, Colombia. A 6-months follow-up was performed, recording clinical data (symptoms, NYHA functional class, number and type of antihypertensive medications, heart rate and ER visits) and paraclinical tests (ABPM, eGFR and echocardiogram). Results: Mean age was 73 ± 4,64 years-old with 50% females. Main comorbidities were dyslipidemia (100%), cardiovascular disease (100%), and type 2 diabetes (83,3%). Pre-procedural medication average was 5. All patients were in NYHA II, with preserved left ventricular EF and mild to moderate diastolic disfunction. At 6 months of follow-up, there was a mean reduction in systolic blood pressure (SBP) of 10 mmHg (145 to 135 mmHg) in ABPM and 26 mmHg (169 to 143 mmHg) in office. There were not significant changes between pre- and post-procedural mean HR (68 vs. 61 bpm), neither short- or long-term complications associated with the procedure. In average, one drug withdrawal was observed. All the subjects improved their NYHA functional class. There were no ER visits in the 6-month follow-up. Conclusions: RDN is effective and safe for patients with DTTH and RH, achieving significant reduction in ABPM and office SBP, reducing medication number, improving NYHA functional class and avoiding visits to ER in the mid-term follow-up.

Abstract P115: Hypothetical Blood Pressure Lowering Interventions and Risk of Mortality in Middle-Aged and Older Chinese Adults: A Population-Based Modelling Study

Background: Improving hypertension control is an important global health priority. We aimed to study the effects of hypothetical interventions on systolic blood pressure (SBP) on mortality risk at the population level. Methods: We estimated the relationship between SBP and all-cause mortality in adults aged 45 years and older from the China Health and Retirement Longitudinal Study and compared the mortality reductions associated with lowering SBP to different hypothetical targets (120, 130, 140, 150 mm Hg). Using the parametric g-computation modeling technique, we estimated the mean blood pressure reduction required to achieve each target, the share of the population in need of management, and the number needed to treat (NNT) to avert one death under different hypothetical population-wide scale-up scenarios. Results: Among 12355 participants, 1203 died over 7-year follow-up. We found a weak, non-linear relationship between SBP and mortality, with larger incremental mortality benefits at higher SBP values: reducing SBP from 160 mm Hg to 120 mm Hg was associated with a relative risk of mortality of 0.75 (95% CI 0.65 to 0.86). At the population level, reducing SBP to 120 mm Hg among all those with a starting SBP of more than 120 mm Hg (120 mm Hg scenario) was associated with 13.7 deaths averted per 1000 population (95% CI -19.3 to -8.1), compared with 3.8 deaths averted per 1000 population (95% CI -6.0 to -1.6) associated with reducing SBP to 150 mm Hg among all those with a starting SBP of more than 150 mm Hg (150 mm Hg scenario). However, there were large differences between scenarios in the proportion of the population that would require treatment, ranging from 64.3% (95% CI 63.4 to 65.1) in the 120 mm Hg scenario to 16.7% (6.0 to 17.3) in the 150 mm Hg scenario. To achieve the target, the 120 mm Hg scenario required a mean shift of -14.4 mm Hg in SBP (95% CI -14.7 to -14.1) compared with a -2.9 mm Hg mean change (-3.0 to -2.7) for the 150 mm Hg scenario. Based on the ratio of number of deaths averted to the proportion requiring treatment, the 150 mm Hg scenario had the smallest NNT (n=44), followed by the 120 mm Hg scenario (n=47), the 140 mm Hg scenario (n=49), and the 130 mm Hg scenario (n=51). Conclusions: These findings highlight the possible substantial benefits of reducing blood pressure. We find that scaling up management based on a 150 mm Hg target is more efficient in terms of the NNT compared with strategies to reduce SBP to lower levels.

Celery Leaf Consumption Movement (GAME BUSRI): A Community-Based Intervention to Promote Blood Pressure Control in Elderly Individuals with Hypertension in Purwakarta Indonesia

Hypertension, a major risk factor for cardiovascular disease, poses a significant health challenge, particularly among the elderly. The "GAME BUSRI" intervention, promoting celery leaf consumption, offers a promising complementary therapy for blood pressure management. This study aimed to evaluate the effectiveness of this community-based intervention in reducing blood pressure among hypertensive elderly individuals in Purwakarta, Indonesia. A quasi-experimental pretest-posttest control group design was employed. Participants were recruited from the community and assigned to either the intervention group (receiving daily celery leaf decoction and health education) or the control group (receiving health education only). Blood pressure measurements were taken at baseline and after the 8-week intervention period. Data were analyzed using appropriate statistical tests. The intervention group demonstrated a statistically significant reduction in both systolic and diastolic blood pressure compared to the control group. The mean reduction in systolic blood pressure was 11.33 mmHg (p < 0.001), and the mean reduction in diastolic blood pressure was 8.67 mmHg (p < 0.001). No adverse events were reported. The "GAME BUSRI" intervention effectively reduced blood pressure in hypertensive elderly individuals. This community-based approach, utilizing a readily available and culturally acceptable resource, holds promise for improving hypertension management and reducing cardiovascular risk in this population.

Comparative Analysis of Pharmacological and Non-Pharmacological Interventions in Hypertensive Patients at Cumilla Medical College Hospital

Background: Hypertension is a prevalent cardiovascular condition requiring effective management to reduce associated morbidity and mortality. Both pharmacological and non-pharmacological interventions play crucial roles in its treatment. This study aims to compare the effectiveness of these interventions in hypertensive patients at Cumilla Medical College Hospital, Bangladesh. Objective: To conduct a comparative analysis of pharmacological and non-pharmacological interventions in hypertension management. Method: A prospective study was conducted using data from the Department of Medicine at Cumilla Medical College Hospital, Bangladesh, from January 2023 to December 2023. A total of 184 patients were included in the study. Data on pharmacological and non-pharmacological interventions were collected, and blood pressure measurements were recorded. Result: Among the 184 patients, 65% received pharmacological interventions, while 35% received non-pharmacological interventions. Of those receiving pharmacological interventions, 82% achieved blood pressure control, compared to 73% in the non-pharmacological group. The mean reduction in systolic blood pressure was 20 mmHg in the pharmacological group and 15 mmHg in the non-pharmacological group. Regarding lifestyle modifications, 45% of patients in the non-pharmacological group reported improved dietary habits, and 55% reported increased physical activity. Conclusion: Both pharmacological and non-pharmacological interventions effectively manage hypertension, with pharmacological interventions showing slightly higher blood pressure control rates. However, non-pharmacological interventions are valuable for improving lifestyle factors. A combination of both approaches may be optimal for hypertension management.

Rate of Post Obstructive Diuresis in Rapid Versus Gradual Bladder Decompression in Patients with Chronic Urinary Retention

Background: Post-obstructive diuresis (POD) is a polyuric state in which copious amounts of salt and water are eliminated after the relief of a urinary tract obstruction. POD is a clinical diagnosis based on urine output exceeding 200 mL per hour for two or more consecutives hours or 3L in 24 hours after decompressing an obstructed bladder, bilateral ureteric obstruction or unilateral ureteric obstruction in a solitary kidney. Methodology: This was a prospective, randomized study in which patients with chronic urinary retention were randomized into two groups: A and B. Group A had rapid urinary decompression with 18Fr urethral catheter attached to a urine bag, while group B had gradual decompression using a urethral catheter attached to an intravenous fluid giving set which was then attached to urine bag. Post obstructive diuresis in each group were assessed at designated times. Data Analysis and Result Presentation: Data was analyzed using the Statistical Package for Social Sciences (IBM) SPSS version 21. Data was summarized by descriptive statistics. The two arms were compared for similarities in demographic variables. Continuous and categorical variables were compared using student t- test and Pearsons‘ Chi – square respectively. Significant p value was 0.05. Result: Sixty patients were recruited into the study and randomized into group A (rapid urinary decompression) and B (gradual urinary decompression) with 30 patients in each group. Thirteen patients (43.33%) had post obstructive diuresis in group A compared to 15 patients (50%) in group B. p value of 0.584. Diuresis resolved within 24 hours in 9 patients (30%) in group A and 11 patients (36.7%) in group B. p value of 0.999. The mean reduction in systolic blood pressure was 8.21 ± 2.63mmHg in group A and 7.63 ± 2.14mmHg in group B. p value of 0.583. The mean reduction diastolic blood pressure was 3.84 ± 1.31mmHg in group A and 3.41 ± 1.16mmHg in group B. P value of 0.624. No patient in both groups developed hypotension (BP of <90/60). Conclusion: There was no statistically significant different in post obstructive diuresis. However, over 46.7% of patients had diuresis in both groups without any one developing hypotension. This may be due to routine prophylactic fluid and electrolyte replacement using normal saline.

DOSE-RESPONSE EFFECT OF SODIUM REDUCTION ON BLOOD PRSSURE IN TREATED HYPERTENSIVES: A SYSTEMATIC REVIEW AND INSTRUMENTAL VARIABLE META-ANALYSIS

Objective: To evaluate the dose-response effects of a reduction in dietary sodium intake on blood pressure (BP) in hypertensive individuals who were on antihypertensive treatments. The impact of antihypertensive-drug class was also examined. Design and method: We searched Medline (via Ovid), Embase, Scopus, Cochrane Central Register of Controlled Trials, and reference lists of relevant articles up to 12 November 2023. We included randomised controlled trials (RCTs) comparing the effect on BP between different levels of dietary sodium intake in adults who were diagnosed as primary hypertension and treated with constant antihypertensive medications during the study period. We excluded RCTs with duration < 2 weeks. Dietary sodium intake was measured using 24-hour urinary sodium excretion. Instrumental variable meta-analyses were conducted to evaluate the dose-response effects of sodium reduction on BP. Subgroup analysis and multivariate meta-regression analysis were performed to examine the impact of antihypertensive-drug class. Results: 35 studies with 2885 participants were included. The pooled estimates of mean reduction in 24-hour urinary sodium excretion, systolic BP (SBP), diastolic BP (DBP), and mean arterial pressure (MAP) were 68.74 (95% confidence interval: 62.30-75.19) mmol, 4.33 (3.37-5.29) mmHg, 2.60 mm Hg (2.04-3.17), and 3.19 (2.50-3.87), respectively. For every 100 mmol reduction in 24-hour urinary sodium excretion, SBP, DBP, and MAP decreased by 6.81 (4.96-8.66) mmHg, 3.85 (2.26-5.43) mmHg, and 4.83 (3.22-6.44) mmHg, respectively (Fig 1). The observed dose-response effects differed across class of antihypertensive medication (P-diff = 0.084 for SBP, and P-diff<0.05 for DBP and MAP). In Beta-blockers, Renin-Angiotensin-Aldosterone System (RAAS) inhibitors, and dual therapy groups, significant dose-response effects of sodium on SBP, DBP and MAP were observed. In Calcium Chanel Blockers (CCB) group, the dose-response relationship was only found for SBP. No dose-response effect on BP was observed in diuretics monotherapy group. Conclusions: Pooled evidence of RCTs suggests a dose-response relationship between sodium reduction and BP in treated hypertensives, which is impacted by class of antihypertensive medications.

Association of pulse pressure and mean blood pressure to frailty, sarcopenia, and cognitive dysfunction in elderly outpatients with history of hypertension.

This study aimed to evaluate the relationship between pulse pressure (PP) and sarcopenia, frailty, and cognitive function in elderly patients with hypertension. We evaluated 435 elderly patients with a history of hypertension who visited the frail outpatient clinic between July 2015 and October 2021. Data at the 1-, 2-, and 3-year follow-ups were available for 222, 177, and 164 patients, respectively. Sarcopenia, frailty, and cognitive function, including Mini-Mental State Examination (MMSE) scores, were evaluated. The patients' mean age was 79.2 ± 6.3 years (male, 34.9%). PP and mean blood pressure (BP) were 60.1 ± 13.6 mmHg and 94.1 ± 13.0 mmHg, respectively. At baseline, lower PP was associated with probable dementia (MMSE score ≤23 points) (OR = 0.960 per 1 mmHg increase; 95% CI, 0.933-0.989; P = 0.006) in the model adjusted for conventional confounding factors and comorbidities, whereas higher PP was associated with low handgrip strength (OR = 1.018 per 1 mmHg increase; 95% CI, 1.001-1.036; P = 0.041). In multivariate-adjusted logistic regression analysis of patients with preserved handgrip strength at baseline, reductions in PP (OR = 0.844; 95% CI, 0.731-0.974; P = 0.020) and mean BP (OR = 0.861; 95% CI, 0.758-0.979; P = 0.022) were significantly associated with the incidence of low handgrip strength at 3 years. In conclusion, a higher PP induced by increased arterial stiffness was associated with lower handgrip strength, whereas a lower PP was associated with probable dementia. Reduced PP was associated with decreased handgrip strength after three years.

Effectiveness of peer-led intervention in control of non-communicable diseases in rural areas of Khordha district: study protocol for a cluster randomized controlled trial

BackgroundThe main contributors to death and disability from chronic illnesses in developing nations are elevated blood pressure (hypertension), blood sugar (diabetes mellitus), and blood cholesterol (dyslipidaemia). Even though there are affordable treatments, the treatment gap for these conditions is still significant. Few pilot studies from industrialized nations discuss the value of peer-led interventions for achieving community-level management of blood pressure and blood sugar. This study aims to evaluate the effectiveness of peer-led intervention compared to standard care in achieving control of selected non-communicable diseases (NCDs) in Indian context at 1 year of intervention among people of 30–60 years with hypertension and/or diabetes mellitus and/or dyslipidaemia.MethodsA cluster-randomized controlled trial will be conducted in villages of two rural blocks of the Khordha district of Odisha from August 2023 to December 2024. A total of 720 eligible participants (360 in the intervention group and 360 in the control group) will be recruited and randomized into two study arms. The participants in the intervention arm will receive a peer-led intervention model for 6 months in addition to standard care. The sessions will be based on the six domains of NCDs — self-care, follow-up care, medication, physical activity, diet, limiting substance use, mental health and co-morbidities. The mean reduction in blood pressure, HbA1C, and blood cholesterol in the intervention arm compared to the standard care arm will be the main outcome.DiscussionThe increasing burden of NCDs demands for newer strategies for management. Peer-led interventions have proven to be useful at the international level. Incorporating it in India will have remarkable results in controlling NCDs.Trial registrationClinical Trial Registry of India (CTRI) CTRI/2023/02/050022. Registered on 23 February 2023.

Treatment with empagliflozin improves cardiac function in infarcted animals associated with increased baroreflex sensitivity

Abstract Background Several clinical and experimental studies have shown an improvement in cardiac function in infarcted patients and animals (diabetic or not) when treated with empagliflozin, as well as an improvement in outcomes in patients with heart failure with reduced ejection fraction or with preserved ejection fraction. Hypothesis: Treatment with empagliflozin for 14 days (10 mg/kg) improves cardiac function in infarcted rats, secondary to increased baroreflex sensitivity. Methods Wistar rats were divided into 2 groups: AMI - acute myocardial infarction (n=8) and AMI+EMPA - acute myocardial infarction + Empagliflozin (n=8). The animals in both groups were anesthetized and submitted to thoracotomy and ligature of the left coronary artery. The animals in the AMI+EMPA group received daily, through oral gavage, 10 mg/kg of empagliflozin, for 14 days. After this period, an echocardiographic examination was performed, followed by cannulation of the femoral vein and artery, to assess hemodynamic parameters and baroreflex activity. The results were evaluated for normality. Data were compared by Student's t tests. And the relationship between the parameters was tested by Pearson's correlation. Results are presented as mean and standard deviation. Results In the echocardiographic evaluation, an improvement in diastolic function indexes was observed in the AMI+EMPA group in relation to the AMI group: E'/A' ratio (1.584 ± 0.437 vs 0.589 ± 0.129), E/E' ratio (14.11 ± 3.946 vs 29.92 ± 6.878) and systolic function: SF (29.30% ± 7.974 vs 19.20% ± 2.445), EF (53.86% ± 11.78 vs 37.91% ± 4.212), FAC (39.31% ± 7.135 vs 23.51 ± 3.940). There was a reduction in mean blood pressure in the AMI+EMPA group (102.4 mmHg ± 6,408) compared to the AMI group (110.7 mmHg ± 8,514) and in diastolic blood pressure (84.4 mmHg ± 3.889 vs 92.8 mmHg ± 7.664). In the assessment of baroreflex sensitivity, an improvement in tachy and bradycardic indexes was observed in the treated animals: tachycardic index (5.021 bpm/mmHg ± 0.346 vs 3.214 bpm/mmHg ± 0.418) and bradycardic index (1.569 bpm/mmHg ± 0.148 vs 0.73 bpm/ mmHg ± 0.046). In addition, the systolic function expressed by the FAC was positively associated with the reflex tachycardic index (p: 0.008; r: 0.616) and to the E'/A' ratio (p: 0.025; r: 0.576) and negatively with PAD (p: 0.040; r: -0.503). Conclusion Treatment with Empagliflozin in infarcted rats was able to improve left ventricular systolic and diastolic function associated with improved performance of arterial baroreceptors.

Targeting liver angiotensinogen using a GalNAc-siRNA improves cardiac remodeling in spontaneously hypertensive rats

Abstract Background Dysregulation of the Renin-Angiotensin-Aldosterone System (RAAS) leads to hypertension and cardiac hypertrophy. Angiotensinogen (AGT) is the only precursor of all angiotensin peptide products. Liver-specific AGT silencing has been proven to be a promising treatment option in lowering blood pressure (BP) in patients, characterized by full RAAS inhibition and little RAAS escape phenomena. However, the long-term effects of AGT knockdown on cardiac remodeling is still unclear. Purpose To explore the long-term effects of a GalNAc-conjugated siRNA drug R0797070 on AGT inhibition, BP and cardiac functions in Spontaneously Hypertensive Rats (SHRs). Methods In vitro inhibitory activities of siRNAs were assessed in primary rat hepatocytes. The selected siRNA was conjugated with GalNAc based on RIBO-GALSTAR liver targeting system and named R0797070. In vivo effects of repeated doses of R0797070 were evaluated in SHR model. The animals were treated with R0797070 (3 mg/kg, every 8 weeks; subcutaneous injection) or PBS (5 ml/kg, every 8 weeks; subcutaneous injection) for 7 months with the first dose (day1) at the 3 months of age. Captopril (100 mg/kg per day; oral administration) was taken as a positive drug control and Wistar rats were used as normotensive control group. Blood pressure was monitored by tail-cuff method after an initial acclimatization training period. Serum AGT protein was measured by ELISA and liver mRNA expression was detected by qPCR. Echocardiography was used to determine the changes of cardiac morphology and functions，and wheat germ agglutinin (WGA) staining was used to measure myocyte cross-sectional size. Results R0797070 showed 90-99% inhibitory activities on hepatic AGT mRNA at different doses. In SHRs, a single dose of R0797070 at 3 mg/kg resulted in a maximum inhibition of 97% for serum AGT protein with 27 mmHg mean blood pressure (MBP) reduction on Day 15. Daily administration of Captopril could reduce MBP by 33 mmHg on average, while the duration of drug efficacy of R0797070 could reach 2 months with the average 25 mmHg MBP reduction. At the end of study, the echocardiographic results showed that R0797070 significantly reduced left ventricular hypertrophy in the 10-month-old SHRs. Consistently, R0797070 treatment reduced the heart weight by 10%，and LV myocyte size by 17%. Conclusion We showed the long-term effects of a GalNAc-siRNA R0797070 on silencing angiotensinogen expression, reducing blood pressure and left ventricular hypertrophy. Compared to daily oral administration of Captopril and its effect on blood pressure R0797070 demonstrated significant effect on cardiac hypertrophy.Figure 1Figure 2

Antihypertensive treatment with hydrochlorothiazide-hydralazine combination aggravates medial vascular calcification in CKD rats with mineral bone disorder.

Arterial stiffness and medial vascular calcification, leading to isolated systolic blood pressure (BP), are major cardiovascular risk factors in patients with chronic kidney disease (CKD) and mineral bone disorders (MBD). The impact of BP on MBD-induced medial vascular calcification in CKD remains uncertain. We investigated whether BP reduction improves arterial stiffness and medial vascular calcification in a rat model of CKD-MBD. CKD was induced in Wistar rats by subtotal nephrectomy. Then, MBD was generated by a Ca/P-rich diet with calcitriol supplementation to induce medial vascular calcification. Two antihypertensive treatments were evaluated: (1) the angiotensin AT1 receptor antagonist losartan, and (2) the combination of the thiazide diuretic hydrochlorothiazide and the direct vasodilator hydralazine (HCTZ/HY). After 5 weeks, mean BP (MBP), pulse pressure (PP), and pulse wave velocity (PWV) were determined. Vascular calcification was assessed in the thoracic aorta. While MBP was similar in CKD-MBD and control CKD rats, PP and PWV were increased in CKD-MBD rats. The heightened arterial stiffness in CKD-MBD rats was associated with diffused medial calcification along the thoracic aorta. Although both losartan and HCTZ/HY reduced MBP in CKD-MBD rats, losartan did not affect PP and PWV nor medial vascular calcification, whereas HCTZ/HY, unexpectedly, further increased arterial stiffness and medial vascular calcification. In the rat model of CKD-MBD, antihypertensive treatment with losartan did not affect arterial stiffness or medial vascular calcification. However, HCTZ/HY treatment aggravated arterial stiffness and vascular calcification despite a similar reduction of MBP, suggesting a blood pressure-independent mechanism for vascular calcification.

Long term effect of renal denervation on 24 hour abpm blood pressure variability and blood pressure load parameters

The aim of the study was to evaluate the long-term effect of renal sympathetic denervation (RSD) on 24h ambulatory blood pressure measurement (ABPM) and blood pressure load (BP load) in patients with resistant hypertension. The study included 32 patients with treatment-resistant hypertension and performed successful RSD. The effect of renal denervation was significant both in terms of daytime, nighttime and 24-hour arterial pressure, with the most pronounced effect on nocturnal blood pressure. In addition to mean BP reduction we found out a significant improvement of weighted 24 h SD and BP load during follow-up. A long-term effect of the RSD, reported as a reduction in 24-hour systolic blood pressure above 10 mm Hg at month 12, was found in 22 patients (68.8%). In multivariate regression analysis, two parameters remained predictive for successful renal denervation – higher nighttime systolic blood pressure (OR 0.9, 95% CI 0.8-1.005, p = 0.05) and lower pulse pressure (OR 1.13, 95% CI 1.01-1.26, p = 0.03). 

Verification of the effect of an exercise programme using walking and diet adjustment in hypertension

One of the leading risk factors for cardiovascular disease is hypokinesis. Therefore, an exercise regimen is emphasized for the prevention and control of hypertension, while at the same time aiming to reduce overall cardiovascular risk in addition to achieving normal blood pressure values.
 The aim of this study was to verify the effect of an exercise programme using walking and dietary modification on the reduction of blood pressure values in hypertension, while the effect of the intervention on weight reduction and change in body composition was also studied.
 The research method in our work was case study. The proband was a physically inactive overweight woman, age 55 years, treated hypertensive, whose blood pressure at entry to the program reached the values of mild hypertension even with treatment. Baseline data were resting blood pressure values measured for 7 days in the morning and evening, a two-day record of physical activity, a seven-day record of diet, diagnosis and analysis of body composition with the InBody device, and calculation of the WHR index. The proband developed a physical activity intervention program using walking for 12 weeks, a minimum of 5 times per week, at moderate intensity, with a gradual increase in daily walking time from 30 to 60 min/day. As an adjunct to the exercise intervention, she was recommended a dietary modification. At the end of the follow-up period, blood pressure values were measured in the same way, a diagnostic and body composition analysis was performed with the InBody device, and the WHR index was calculated. The intervention program was also evaluated in relation to overweight and body composition as important factors in hypertension.
 After 12 weeks of the intervention programme, the mean reduction in systolic blood pressure was 6,29 mmHg in the morning and 4,86 mmHg in the evening. The average reduction in diastolic blood pressure was 4,57 mmHg in the morning and 3,14 mmHg in the evening. There was also a decrease in heart rate by an average of 4,07 beats per minute. At the same time, the intervention program led to a reduction in the proband's body weight (by 7,2 kg), a decrease in BMI (from 27,8 to 25,5 kg/m2), a decrease in body fat percentage (by 3,9 %) and a decrease in WHR index (from 0,91 to 0,88).
 These results confirmed that regular physical activity and dietary modification play an important role in the treatment of high blood pressure and verified the effectiveness of expert recommendations in hypertension. They also confirmed the positive effect of these recommendations on weight reduction and body composition. In summary, this work verified the beneficial effects of walking supported by dietary modification on the following risk factors for cardiovascular disease - high blood pressure, overweight, body fat, and central obesity.

The Effect of Slow Stroke Back Massage on Blood Pressure in Elderly Patients with Hypertension

Hypertension is a non-communicable disease that is often diagnosed in the elderly population in the world. Some previous studies have also suggested that slow stroke back massage, is effective in lowering blood pressure in hypertensive patients. However, limited studies examine this therapy in elderly group. This study aims to determine the effect of slow stroke back massage on blood pressure in elderly hypertensive patients. This research method uses a type of quantitative research using quasi experimental design with two group pre-post-test nonequivalent control group design. The number of samples used were 44 respondents. Sampling using the simple random sampling technique was carried out 3 times a week with a duration of 10 minutes for 4 weeks. Inclusion criteria in this study were hypertension sufferers who were willing to be respondents, patients aged 45-74 years both male and female and patients taking hypertension medication. Exclusion criteria were patients who experienced burns, bruises, skin rashes, inflammation of the skin of the back, patients who had spinal fractures. The analysis used was univariate and bivariate using the parametric Paired Sample t-test and Independent t-test. The results obtained mean a decrease in systolic and diastolic blood pressure in the intervention group was 21.04 mmHg and 11.68 mmHg, p-value (0.000 <0.05). Meanwhile, the mean reduction in systolic and diastolic blood pressure in the control group was 3.00 mmHg with a p-value (0.071>0.05) and 2.04 mmHg with a p-value (0.081>0.05). The results of data analysis using the independent sample t-test obtained a p-value of 0.000 <0.05, which means that there is an effect of slow stroke back massage on blood pressure in hypertension sufferers. This study recommended slow stroke back massage as an alternative or supporting therapy in managing hypertension in elderly individuals because it does not cause side effects.

The Effect of Slow Stroke Back Massage on Blood Pressure in Elderly Patients with Hypertension

Hypertension is a non-communicable disease that is often diagnosed in the elderly population in the world. Some previous studies have also suggested that slow stroke back massage, is effective in lowering blood pressure in hypertensive patients. However, limited studies examine this therapy in elderly group. This study aims to determine the effect of slow stroke back massage on blood pressure in elderly hypertensive patients. This research method uses a type of quantitative research using quasi experimental design with two group pre-post-test nonequivalent control group design. The number of samples used were 44 respondents. Sampling using the simple random sampling technique was carried out 3 times a week with a duration of 10 minutes for 4 weeks. Inclusion criteria in this study were hypertension sufferers who were willing to be respondents, patients aged 45-74 years both male and female and patients taking hypertension medication. Exclusion criteria were patients who experienced burns, bruises, skin rashes, inflammation of the skin of the back, patients who had spinal fractures. The analysis used was univariate and bivariate using the parametric Paired Sample t-test and Independent t-test. The results obtained mean a decrease in systolic and diastolic blood pressure in the intervention group was 21.04 mmHg and 11.68 mmHg, p-value (0.000 <0.05). Meanwhile, the mean reduction in systolic and diastolic blood pressure in the control group was 3.00 mmHg with a p-value (0.071>0.05) and 2.04 mmHg with a p-value (0.081>0.05). The results of data analysis using the independent sample t-test obtained a p-value of 0.000 <0.05, which means that there is an effect of slow stroke back massage on blood pressure in hypertension sufferers. This study recommended slow stroke back massage as an alternative or supporting therapy in managing hypertension in elderly individuals because it does not cause side effects.

A Comparative Study of the Safety and Efficacy of Amlodipine and Enalapril when Prescribed as Monotherapy in Patients with Isolated Systolic Hypertension

Background: Most elderly patients with high blood pressure have isolated systolic hypertension. Enalapril and amlodipine are respectively the most commonly prescribed ACE inhibitors and calcium channel blockers in Nepal. The goal of the current study was to compare the adverse drug reaction associated with amlodipine and enalapril in the study population as well as to compare the mean blood pressure and pulse rate reductions caused by amlodipine and enalapril in isolated systolic hypertensive patients.
 Materials and Methods: A comparative cross-sectional study was performed on 72 patients of both genders within the age group of 30 to 90 years; with isolated systolic hypertension; attending the out-patients department of Medicine of Nobel Medical College and Teaching Hospital; from December 2022 to February 2023. Mean reductions in systolic and diastolic blood pressure in the two treatment groups over the eight-weeks study period was calculated and then compared. Frequencies of patients developing different side effects was also calculated and compared between the two groups.
 Results: Systolic blood pressure was reduced by 16.1% in amlodipine group and by 18.8 % in enalapril group. Enalapril was slightly more efficacious in reducing the systolic blood pressure but such changes were found to be of no significant difference when compared between the two groups. (p > 0.05). The incidence of adverse effect was more in the amlodipine group in comparison to the enalapril group. Dry cough, dizziness, headache and fatigue with enalapril; and headache, peripheral edema, shortness of breath, fatigue, and flushing and dizziness with amlodipine were the common adverse effects.
 Conclusion: Both amlodipine and enalapril were equally effective in lowering systolic blood pressure without significantly lowering diastolic blood pressure. They were also generally well tolerated, though amlodipine was slightly more likely to cause side effects.

THE INFLUENCE OF GLP-1RAS (ORAL SEMAGLUTIDE) ON TENSIONAL CONTROL IN DIABETIC PATIENTS WITH CHRONIC RENAL DISEASE

Objective: GLP-1 receptor agonists (GLP-1RAs) represent one of the pharmacological groups of choice for the diabetic management of patients with cardiovascular disease and chronic kidney disease (CKD). Their hypotensive effect has not been sufficiently evaluated in association with the usual antihypertensive drugs. The main objective is to study the hypotensive effect of oral semaglutide at a maintenance dose of 7mg per day in a cohort of patients with stage 3b CKD (glomerular filtration rate -GFR- 44 to 30ml/min by CKD-EPI) with poor diabetic control and without previous treatment with GLP-1 receptor agonists or iSGLT2. Design and method: Sixteen patients of both sexes were selected and divided into two follow-up arms of eight patients each. In one arm, the combination of oral semaglutide with an angiotensin receptor blocker (ARB) (such as losartan at a maintenance dose of 50-100mg per day) is evaluated, and in the other, dietary measures are intensified together with ARB at the same doses. After 4 months of treatment, the primary and secondary variables were assessed: body weight, glycosylated haemoglobin (HbA1c), renal function and albuminuria (albumin/creatinine ratio - ACC). Results: Mean age was similar in both groups (69 vs 70 years). The reduction in mean blood pressure (BP) values obtained with standardised measurements in a nephrology consultation in the semaglutide + ARB arm was -12mmHg (systolic) and -5mmHg (diastolic) compared to those in the ARB arm alone (-5mmHg systolic and -3mmHg diastolic), with statistical significance (p<0.05). The other comparative variables between the two groups were: reduction in body weight (-2.5kg vs -0.5kg, p<0.05); reduction in mean HbA1c (-1.2% vs -0.1%, p<0.05); changes in eGFR (+2ml/min/1.73m2 vs -3ml/min/1.73m2, p>0.05) and mean reduction in ACC (-257mg/g vs +12mg/g, p<0.05). Conclusions: Orally administered GLP-1 receptor agonists (semaglutide) are drugs with a hypotensive potential complementary to renin angiotensin system inhibitors in diabetic renal patients. This property, together with their antiproteinuric effect, makes them an ideal choice in situations of hypertension and moderate renal dysfunction. Larger, controlled studies are needed to measure the renal effect alongside the various antihypertensive groups.

THE EFFECT OF TEXT MESSAGES BY CELL PHONE IN THE CONTROL OF HYPERTENSION: A RANDOMIZED CLINICAL TRIAL

Objective: To compare the effects of texting by cell phone plus standard usual guidance for hypertension versus standard usual guidance alone, on blood pressure control, among hypertensive patients undergoing outpatient treatment. Design and method: Randomized controlled clinical trial, composed of two groups: Intervention Group, who received SMS text messages twice a week for 10 weeks; and Comparison Group, who received the usual care. Both groups received an educational pamphlet about the hypertension. The primary outcome was BP control by office blood pressure measurement (OBPM; <140/90 mmHg) or by daytime Ambulatory Blood Pressure Monitoring (ABPM; <135/85 mmHg). Adherence to treatment was assessed indirectly using the 4 item Morisky Medication Adherence Scale and, directly, by assessing antihypertensive drugs in the urine, using a high-performance liquid chromatography technique associated with mass spectrometry. The significance level was 5%. Results: In the study, 178 patients were randomized, (90 in the Intervention Group and 88 in the Comparison Group). The sample was 60 (10) years old, women (63.8%), non-white (58.9%) and married (54.6%). The hypertensive patients were classified as having high cardiovascular risk (77.3%). The result of the intervention effect showed that there was no difference between the Intervention Group and Comparison Group (RR = 1.05; 95%CI = 0.75-1.47, and RR = 1.23; 95%CI = 0.87-1.74, respectively) in the control of OBPM, or by the daytime ABPM. However, in the Intervention Group and Comparison Group, respectively, there was a mean reduction in BP (-8.6 and -7.3 mmHg in systolic OBPM and -2.19 mmHg and -2.09 mmHg in systolic daytime ABPM); and increase in the BP control by the OBPM (19.8% to 36.0% and 19.7% to 38.2%) and daytime ABPM (38.6% to 42.5% and 41.3% to 52.2%); and in the assessment of adherence indirectly (45.3% to 69.4% and 57.1% to 59.2%). In the assessment of adherence directly, there was little difference between the groups and the two moments evaluated. Conclusions: The effect of texting by cell phone was similar to usual treatment for hypertension on BP control. On the other hand, both groups improved BP control and increased adherence to treatment.