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1.
Front Public Health ; 12: 1363750, 2024.
Article in English | MEDLINE | ID: mdl-39076414

ABSTRACT

Background: Sailors undergo anxiety and sleep disturbances due to prolonged journeys and the nature of their work on ships. Earlier studies indicate Cyclic Meditation (CM) being beneficial for managing anxiety and improving sleep quality. Thus, the current study was designed to investigate the effect of CM on anxiety and sleep quality among sailors. Materials and methods: Fifty sailors were assigned to experimental (n = 25) and control (n = 25) groups. The experimental group received 45 min of CM, 7 days a week for 3 weeks. Control group continued with their routine activities and were offered CM practice the following 3 weeks. Hamilton Anxiety Scale for anxiety (HAM-A) and the Pittsburg Sleep Quality Index (PSQI) for sleep along with blood pressure and pulse rate were taken at baseline and by the end of 3 weeks. Data were analyzed using Repeated Measures Analysis of Variance (RM ANOVA) for within and between group effects. Results: Significant differences were found between the groups following 3 weeks for all the variables. Experimental group demonstrated reduced anxiety (p < 0.001) and improved sleep (p < 0.001) along with improvements in blood pressure and pulse rate. The control group did not show any significant changes following 3 weeks. Conclusion: CM could be incorporated as a routine for sailors to manage their anxiety and improve sleep quality during the period on board ships.


Subject(s)
Anxiety , Meditation , Ships , Sleep Quality , Humans , Male , Adult , Female , Blood Pressure/physiology , Military Personnel/psychology , Middle Aged
2.
Mayo Clin Proc ; 99(7): 1058-1077, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38960495

ABSTRACT

OBJECTIVE: To conduct a randomized controlled trial examining the effects of a social network intervention on health. PARTICIPANTS AND METHODS: The Microclinic Social Network Program randomized controlled trial (implemented from June 1, 2011, through December 31, 2014) delivered weekly social-health classroom interventions for 9 to 10 months vs standard of care. Longitudinal multilevel analyses examined end-of-trial and 6-month post-intervention outcomes. Social network effects were estimated via a novel social induction ratio. RESULTS: We randomized 494 participants, comprising 27 classroom clusters from five neighborhood cohorts. Compared with controls, the intervention showed decreased body weight -6.32 pounds (95% CI, -8.65 to -3.98; overall P<.001), waist circumference -1.21 inches (95% CI, -1.84 to -0.58; overall P<.001), hemoglobin A1c % change -1.60 (95% CI, -1.88 to -1.33; overall P<.001), mean arterial blood pressure -1.83 mm Hg (95% CI, -3.79 to 0.32; overall P<.01), borderline-increased high-density lipoprotein cholesterol 1.09 (95% CI, 0.01-2.17; P=.05; overall P=.01). At 6 months post-intervention, net improvements were: weight change 97% sustained (P<.001), waist circumference change 92% sustained (P<.001), hemoglobin A1c change 82.5% sustained (P<.001), high-density lipoprotein change 79% sustained (overall P=.01), and mean arterial blood pressure change greater than 100% sustained improvement of -4.21 mm Hg (P<.001). Mediation analysis found that diet and exercise did not substantially explain improvements. In the intent-to-treat analysis of social causal induction, the weight-change social induction ratio (SIR) was 1.80 for social-network weight change-meaning that social networks explained the greater weight loss in the intervention than controls. Furthermore, we observed an even stronger weight-loss SIR of 2.83 at 6 months post-intervention. CONCLUSION: Results show intervention effectiveness for improving health in resource-limited communities, with SIR demonstrating that social-network effects helped induce such improvements. TRIAL REGISTRATION: Clinicaltrials.gov Identifier NCT01651065.


Subject(s)
Rural Population , Humans , Male , Female , Appalachian Region , Middle Aged , Adult , Glycated Hemoglobin/analysis , Glycated Hemoglobin/metabolism , Waist Circumference , Blood Pressure/physiology
3.
Med Sci Monit ; 30: e944913, 2024 Jul 04.
Article in English | MEDLINE | ID: mdl-38961611

ABSTRACT

Vital signs are crucial for monitoring changes in patient health status. This review compared the performance of noncontact sensors with traditional methods for measuring vital signs and investigated the clinical feasibility of noncontact sensors for medical use. We searched the Medical Literature Analysis and Retrieval System Online (MEDLINE) database for articles published through September 30, 2023, and used the key search terms "vital sign," "monitoring," and "sensor" to identify relevant articles. We included studies that measured vital signs using traditional methods and noncontact sensors and excluded articles not written in English, case reports, reviews, and conference presentations. In total, 129 studies were identified, and eligible articles were selected based on their titles, abstracts, and full texts. Three articles were finally included in the review, and the types of noncontact sensors used in each selected study were an impulse radio ultrawideband radar, a microbend fiber-optic sensor, and a mat-type air pressure sensor. Participants included neonates in the neonatal intensive care unit, patients with sleep apnea, and patients with coronavirus disease. Their heart rate, respiratory rate, blood pressure, body temperature, and arterial oxygen saturation were measured. Studies have demonstrated that the performance of noncontact sensors is comparable to that of traditional methods of vital signs measurement. Noncontact sensors have the potential to alleviate concerns related to skin disorders associated with traditional skin-contact vital signs measurement methods, reduce the workload for healthcare providers, and enhance patient comfort. This article reviews the medical use of noncontact sensors for measuring vital signs and aimed to determine their potential clinical applicability.


Subject(s)
COVID-19 , Vital Signs , Humans , Vital Signs/physiology , Monitoring, Physiologic/methods , Monitoring, Physiologic/instrumentation , COVID-19/diagnosis , SARS-CoV-2 , Heart Rate/physiology , Blood Pressure/physiology
4.
Front Public Health ; 12: 1409214, 2024.
Article in English | MEDLINE | ID: mdl-38962763

ABSTRACT

Background: To explore the relationship between body mass index (BMI), age, sex, and blood pressure (systolic blood pressure, SBP; diastolic blood pressure, DBP) in children during COVID-19, providing reference for the prevention and screening of hypertension in children. Methods: This study adopted a large-scale cross-sectional design to investigate the association between BMI and blood pressure in 7-17-year-old students in City N, China, during COVID-19. Thirty-six primary and secondary schools in City N were sampled using a stratified cluster sampling method. A total of 11,433 students aged 7-17 years in City N, China, were selected for blood pressure (Diastolic blood pressure, DBP, Systolic blood pressure, SBP), height, and weight, Resting heart rate (RHR), chest circumference, measurements, and the study was written using the STROBE checklist. Data analysis was conducted using SPSS 26.0, calculating the mean and standard deviation of BMI and blood pressure for male and female students in different age groups. Regression analysis was employed to explore the impact of BMI, age, and sex on SBP and DBP, and predictive models were established. The model fit was evaluated using the model R2. Results: The study included 11,287 primary and secondary school students, comprising 5,649 boys and 5,638 girls. It was found that with increasing age, BMI and blood pressure of boys and girls generally increased. There were significant differences in blood pressure levels between boys and girls in different age groups. In regression models, LC, Age, BMI, and chest circumference show significant positive linear relationships with SBP and DBP in adolescents, while RHR exhibits a negative linear relationship with SBP. These factors were individually incorporated into a stratified regression model, significantly enhancing the model's explanatory power. After including factors such as Age, Gender, and BMI, the adjusted R2 value showed a significant improvement, with Age and BMI identified as key predictive factors for SBP and DBP. The robustness and predictive accuracy of the model were further examined through K-fold cross-validation and independent sample validation methods. The validation results indicate that the model has a high accuracy and explanatory power in predicting blood pressure in children of different weight levels, especially among obese children, where the prediction accuracy is highest. Conclusion: During COVID-19, age, sex, and BMI significantly influence blood pressure in children aged 7-17 years, and predictive models for SBP and DBP were established. This model helps predict blood pressure in children and reduce the risk of cardiovascular diseases. Confirmation of factors such as sex, age, and BMI provide a basis for personalized health plans for children, especially during large-scale infectious diseases, providing guidance for addressing health challenges and promoting the health and well-being of children.


Subject(s)
Blood Pressure , Body Mass Index , COVID-19 , Humans , Adolescent , Child , Male , Female , Cross-Sectional Studies , China/epidemiology , Blood Pressure/physiology , Hypertension , Sex Factors , SARS-CoV-2 , Age Factors
5.
J Wound Care ; 33(7): 519-525, 2024 Jul 02.
Article in English | MEDLINE | ID: mdl-38967344

ABSTRACT

OBJECTIVE: The presence of peripheral artery disease (PAD) in patients with diabetic foot ulcers (DFUs) is a significant risk factor for chronicity and amputation. Ankle-brachial pressure index (ABPI) is a screening tool for PAD. Brachial systolic pressure measurement, used as a denominator in the calculation of ABPI, produces inaccurate results in patients with obesity and the presence of heavy clothing. The wrist, however, is easily accessible, and the ankle-wrist pressure index (AWPI), if comparable with ABPI, may be useful in screening selected patients. This study aimed to assess the efficacy of AWPI in diagnosing perfusion in DFUs and compare it to ABPI in patients with DFUs. METHOD: ABPI and AWPI were calculated by measuring systolic blood pressure in the arteries of the ankle, arm and wrist with a handheld Doppler. Actual perfusion was determined by the presence or absence of PAD by duplex ultrasound. RESULTS: A total of 46 lower extremities in 41 patients were studied. The prevalence of PAD was 61%. Duplex ultrasound confirmed that the sensitivity of ABPI and AWPI in detecting PAD in patients with DFUs was 67.9% and 71.4% respectively, whereas the specificity of ABPI and AWPI was 94.4% and 88.9% respectively. On receiver operating characteristic analysis, the area under the curve of ABPI and AWPI was 0.804 and 0.795, respectively. A statistically significant positive correlation between ABPI and AWPI was found (r=0.986; p<0.001). CONCLUSION: There was a good correlation between ABPI and AWPI over a wide range of values. ABPI and AWPI may have a similar role in predicting perfusion in patients with DFUs. AWPI could be used in place of ABPI in selected patients in whom measuring ABPI may be difficult. DECLARATION OF INTEREST: The authors have no conflicts of interest to declare.


Subject(s)
Ankle Brachial Index , Diabetic Foot , Peripheral Arterial Disease , Humans , Male , Pilot Projects , Female , Diabetic Foot/physiopathology , Middle Aged , Aged , Peripheral Arterial Disease/physiopathology , Lower Extremity/blood supply , Lower Extremity/physiopathology , Sensitivity and Specificity , Blood Pressure/physiology
6.
J Int AIDS Soc ; 27(7): e26268, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38978403

ABSTRACT

INTRODUCTION: Recent evidence has raised questions about whether newer HIV treatment regimens, including dolutegravir (DTG) and tenofovir alafenamide (TAF), are associated with increases in blood pressure (BP). METHODS: We assessed changes in BP by treatment regimen and evaluated the relative contribution of kidney function and weight gain to these changes among participants in the ADVANCE phase-3 trial clinical trial in South Africa (study dates: January 2017-February 2022). Our primary outcome of interest was a change in systolic BP (SBP) at 96 and 192 weeks, among those not receiving antihypertensive medication. The secondary outcome was treatment-emergent hypertension at these same time points, defined as BP ≥140/90 mmHg on two occasions, or initiation of antihypertensive medication after week 4 among individuals without hypertension at enrolment. We used linear regression to evaluate the relationship between change in estimated glomerular filtration rate (eGFR) and change in SBP; and Poisson regression to evaluate the relationship between change in eGFR and treatment-emergent hypertension at each time point. All models were adjusted for age, sex, treatment group and change in body mass index (BMI). RESULTS: Over 96 weeks, the average changes in SBP were 1.7 mmHg (95% CI: 0.0-3.4), -0.5 mmHg (95% CI: -2.2 to 1.7) and -2.1 mmHg (95% CI: -3.8 to 0.4) in the TAF/emtricitabine (FTC)/DTG, tenofovir disoproxil fumarate (TDF)/FTC/DTG and TDF/FTC/efavirenz (EFV) groups, respectively. This difference was significant for the TAF/FTC/DTG compared to the TDF/FTC/EFV group (p = 0.002). Over 96 weeks, 18.2% (95% CI: 13.4-22.9), 15.4% (95% CI: 11.0-19.9) and 13.3% (95% CI: 8.9-17.6) of participants developed treatment-emergent hypertension, respectively. In adjusted models, there was no significant relationship between change in eGFR and either outcome. Change in BMI was significantly associated with an increase in SBP, while age was associated with an increased risk of treatment-emergent hypertension. Adjustment for BMI also mitigated the unadjusted relationship between HIV treatment regimen and SBP where present. CONCLUSIONS: In the ADVANCE cohort, weight gain and age accounted for increases in BP and risk of treatment-emergent hypertension. HIV treatment programmes may need to integrate the management of obesity and hypertension into routine care. CLINICAL TRIAL NUMBER: NCT03122262.


Subject(s)
Blood Pressure , HIV Infections , Hypertension , Tenofovir , Weight Gain , Humans , Male , Female , South Africa , HIV Infections/drug therapy , Adult , Middle Aged , Tenofovir/therapeutic use , Tenofovir/adverse effects , Tenofovir/analogs & derivatives , Weight Gain/drug effects , Hypertension/drug therapy , Blood Pressure/drug effects , Blood Pressure/physiology , Pyridones/therapeutic use , Piperazines/therapeutic use , Oxazines/therapeutic use , Heterocyclic Compounds, 3-Ring/therapeutic use , Heterocyclic Compounds, 3-Ring/adverse effects , Glomerular Filtration Rate/drug effects , Alanine/therapeutic use , Anti-HIV Agents/therapeutic use , Anti-HIV Agents/adverse effects
7.
Physiol Rep ; 12(14): e16141, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39022810

ABSTRACT

This study aimed to test whether bright light (BL) exposure attenuates the reduction in blood pressure (BP) postexercise compared to dim light (DL). Twenty healthy men (27 ± 5 years) randomly underwent two experimental sessions: one under BL (5000 lux) and another under dim light (DL <8lux). In each session, subjects executed a bout of aerobic exercise (cycle ergometer, 30 min, moderate intensity). BP (oscillometric) and heart rate (HR monitor) were measured, and rate-pressure-product (RPP) was calculated. Additionally, a 24-h ambulatory blood pressure monitoring (ABPM) was conducted after the sessions. Systolic BP decreased while HR increased significantly and similarly after the exercise in both sessions. Additionally, systolic BP levels were higher in BL than DL throughout the experimental session (Psession = 0.04). Diastolic (Pinteraction = 0.02) and mean (Pinteraction = 0.03) BPs decreased after exercise in DL (at 30 min), and increased in BL (at 60 and 90 min). RPP increased in both sessions postexercise, but with a main effect revealing higher levels throughout the experimental session in BL than DL (Psession = 0.04) and during the first 3 h of ABPM (p = 0.05). In healthy men, BL exposure increased systolic BP and cardiac work, and abolished the postexercise decreases of diastolic and mean BPs.


Subject(s)
Blood Pressure , Exercise , Heart Rate , Humans , Male , Exercise/physiology , Blood Pressure/physiology , Adult , Heart Rate/physiology , Light , Blood Pressure Monitoring, Ambulatory/methods , Young Adult
8.
Eur J Med Res ; 29(1): 372, 2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39026363

ABSTRACT

OBJECTIVES: This study aimed to investigate the associations between changes in blood pressure (BP) and cerebral small vessel disease (CSVD). METHODS: This study included 401 participants in the magnetic resonance imaging (MRI) sub-study conducted between 2018 and 2020 as a part of the Multidomain Interventions to Delay Dementia and Disability in Rural China project. MRI markers of CSVD were assessed based on international criteria. Individualized linear regression models evaluated changes in BP by estimating the trend of blood pressure changes over time and fitting a straight line from 2014 to 2018. The data were analyzed using logistic and general linear regression models. RESULT: The mean age of the participants was 64.48 ± 2.69 years, with 237 (59.1%) being females. Increases in systolic BP in later life were significantly associated with larger volumes of periventricular white matter hyperintensity (WMH), greater perivascular spaces in the basal ganglia (BG-PVS) burden, and the presence of deep lacunes and cerebral microbleeds. Additionally, increases in diastolic BP in later life were significantly associated with the presence of infratentorial and deep lacunes. CONCLUSIONS: CSVDs are associated with increased exposure to elevated BP later in life.


Subject(s)
Blood Pressure , Cerebral Small Vessel Diseases , Magnetic Resonance Imaging , Humans , Female , Cerebral Small Vessel Diseases/physiopathology , Cerebral Small Vessel Diseases/diagnostic imaging , Cerebral Small Vessel Diseases/pathology , Male , Middle Aged , China/epidemiology , Blood Pressure/physiology , Aged , Magnetic Resonance Imaging/methods
9.
J Clin Hypertens (Greenwich) ; 26(7): 867-871, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38980266

ABSTRACT

Accurate arm circumference (AC) measurement is required for accurate blood pressure (BP) readings. Standards stipulate measuring arm circumference at the midpoint between the acromion process (AP) and the olecranon process. However, which part of the AP to use is not stipulated. Furthermore, BP is measured sitting but arm circumference is measured standing. We sought to understand how landmarking during AC measurement and body position affect cuff size selection. Two variations in measurement procedure were studied. First, AC was measured at the top of the acromion (TOA) and compared to the spine of the acromion (SOA). Second, standing versus seated measurements using each landmark were compared. AC was measured to the nearest 0.1 cm at the mid-point of the upper arm by two independent observers, blinded from each other's measurements. In 51 participants, the mean (±SD) mid-AC measurement using the anchoring landmarks TOA and SOA in the standing position were 32.4 cm (±6.18) and 32.1 cm (±6.07), respectively (mean difference of 0.3 cm). In the seated position, mean arm circumference was 32.2 (±6.10) using TOA and 31.1 (±6.03) using SOA (mean difference 1.1 cm). Kappa agreement for cuff selection in the standing position between TOA and SOA was 0.94 (p < 0.001). The landmark on the acromion process can change the cuff selection in a small percentage of cases. The overall impact of this landmark selection is small. However, standardizing landmark selection and body position for AC measurement could further reduce variability in cuff size selection during BP measurement and validation studies.


Subject(s)
Arm , Blood Pressure Determination , Humans , Arm/anatomy & histology , Male , Female , Blood Pressure Determination/methods , Blood Pressure Determination/instrumentation , Blood Pressure Determination/standards , Reproducibility of Results , Middle Aged , Adult , Observer Variation , Blood Pressure/physiology , Anatomic Landmarks , Aged , Posture/physiology , Anthropometry/methods , Acromion/anatomy & histology
10.
Psychoneuroendocrinology ; 167: 107110, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38954979

ABSTRACT

A Randomized Controlled Trial involving 158 Brazilian medical and nursing students assessed one of three conditions over an 8-week period: 1) a circuit training protocol (CTG); 2) a yoga protocol (YG); or 3) no intervention (CG). The objective was to evaluate the effectiveness of circuit training and yoga protocols in reducing perceived mental stress and examining their effects on serum cortisol levels, as well as on traditional cardiovascular risk factors (CRFs), during an academic semester. Mental stress was measured using self-reported stress questionnaires. For the CTG, comparisons of pre- vs. post-intervention data indicated a reduction in self-reported stress levels on a Brazilian scale (p < 0.001) and an international scale (p < 0.05). Regarding CRFs, there was a reduction in waist circumference (WC) (p < 0.05), systolic blood pressure (SBP) (p < 0.05), and heart rate (HR) (p < 0.001). No changes were observed in diastolic blood pressure (DBP) (p = 0.211) and serum cortisol (SC) (p = 0.423). In the YG, pre- vs. post-intervention data indicated a reduction in self-reported stress levels on the ISSL (p < 0.001), in both resistance and exhaustion stress levels on the PSS scale (p < 0.001), and in SC levels (p < 0.001), WC (p < 0.05), and SBP (p < 0.05); however, HR and DBP did not change (p = 0.168 and p = 0.07, respectively) in this group. No changes were noted in any measures in the CG. The intervention protocols demonstrated that both CTG and YG can positively impact mental or biochemical stress responses, as well as CRFs.


Subject(s)
Biomarkers , Blood Pressure , Heart Rate , Hydrocortisone , Stress, Psychological , Students, Medical , Students, Nursing , Yoga , Humans , Stress, Psychological/therapy , Stress, Psychological/psychology , Stress, Psychological/metabolism , Brazil , Female , Male , Hydrocortisone/blood , Students, Medical/psychology , Yoga/psychology , Students, Nursing/psychology , Adult , Young Adult , Heart Rate/physiology , Blood Pressure/physiology , Biomarkers/blood , Cardiovascular Diseases/psychology
11.
Physiol Rep ; 12(14): e16165, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39048525

ABSTRACT

Dahl salt-sensitive (SS) rats fed a high-salt diet, but not low-salt, exhibit vascular dysfunction. Several substrains of SS rats exist that differ in their blood pressure phenotypes and salt sensitivity. The goal of this study was to investigate whether the John-Rapp-derived SS rat (SS/Jr), which exhibits spontaneous hypertension on a low-salt diet, presents with hallmarks of vascular dysfunction observed in another experimental model of hypertension independent of dietary salt, the spontaneously hypertensive rat (SHR). Endothelium-intact aortic rings and mesenteric resistance arteries were isolated from low-salt fed adult male SS/Jr rats and SHRs, or their respective controls, for isometric wire myography. Vessels were challenged with cumulative concentrations of various vasoactive substances, in the absence or presence of nitric oxide synthase or cyclooxygenase inhibitors. Despite showing some differences in their responses to various vasoactive substances, both SS/Jr rats and SHRs exhibited key features of vascular dysfunction, including endothelial dysfunction and hyperresponsiveness to vasocontractile agonists. In conclusion, this study provides evidence to support the utility of the SS/Jr rat strain maintained on a low-salt diet as a valid experimental model for vascular dysfunction, a key feature of human hypertension.


Subject(s)
Hypertension , Mesenteric Arteries , Rats, Inbred Dahl , Rats, Inbred SHR , Sodium Chloride, Dietary , Animals , Male , Hypertension/physiopathology , Hypertension/etiology , Rats , Sodium Chloride, Dietary/adverse effects , Mesenteric Arteries/physiopathology , Mesenteric Arteries/drug effects , Mesenteric Arteries/metabolism , Endothelium, Vascular/physiopathology , Endothelium, Vascular/drug effects , Endothelium, Vascular/metabolism , Blood Pressure/physiology , Vasodilation/drug effects , Vasodilation/physiology , Diet, Sodium-Restricted
12.
BMC Anesthesiol ; 24(1): 221, 2024 Jul 03.
Article in English | MEDLINE | ID: mdl-38961365

ABSTRACT

BACKGROUND: This study aimed to evaluate the accuracy of ankle blood pressure measurements in relation to invasive blood pressure in the lateral position. METHODS: This prospective observational study included adult patients scheduled for elective non-cardiac surgery under general anesthesia in the lateral position. Paired radial artery invasive and ankle noninvasive blood pressure readings were recorded in the lateral position using GE Carescape B650 monitor. The primary outcome was the ability of ankle mean arterial pressure (MAP) to detect hypotension (MAP < 70 mmHg) using area under the receiver operating characteristic curve (AUC) analysis. The secondary outcomes were the ability of ankle systolic blood pressure (SBP) to detect hypertension (SBP > 140 mmHg) as well as bias (invasive measurement - noninvasive measurement), and agreement between the two methods using the Bland-Altman analysis. RESULTS: We analyzed 415 paired readings from 30 patients. The AUC (95% confidence interval [CI]) of ankle MAP for detecting hypotension was 0.88 (0.83-0.93). An ankle MAP of ≤ 86 mmHg had negative and positive predictive values (95% CI) of 99 (97-100)% and 21 (15-29)%, respectively, for detecting hypotension. The AUC (95% CI) of ankle SBP to detect hypertension was 0.83 (0.79-0.86) with negative and positive predictive values (95% CI) of 95 (92-97)% and 36 (26-46)%, respectively, at a cutoff value of > 144 mmHg. The mean bias between the two methods was - 12 ± 17, 3 ± 12, and - 1 ± 11 mmHg for the SBP, diastolic blood pressure, and MAP, respectively. CONCLUSION: In patients under general anesthesia in the lateral position, ankle blood pressure measurements are not interchangeable with the corresponding invasive measurements. However, an ankle MAP > 86 mmHg can exclude hypotension with 99% accuracy, and an ankle SBP < 144 mmHg can exclude hypertension with 95% accuracy.


Subject(s)
Anesthesia, General , Ankle , Blood Pressure Determination , Humans , Female , Anesthesia, General/methods , Male , Prospective Studies , Middle Aged , Blood Pressure Determination/methods , Ankle/blood supply , Aged , Oscillometry/methods , Blood Pressure/physiology , Hypertension/physiopathology , Hypertension/diagnosis , Hypotension/diagnosis , Hypotension/physiopathology , Adult , Patient Positioning/methods
13.
Medicine (Baltimore) ; 103(27): e38756, 2024 Jul 05.
Article in English | MEDLINE | ID: mdl-38968488

ABSTRACT

Physical exercise requires integrated autonomic and cardiovascular adjustments to maintain homeostasis. We aimed to observe acute posture-related changes in blood pressure, and apply a portable noninvasive monitor to measure the heart index for detecting arrhythmia among elite participants of a 246-km mountain ultra-marathon. Nine experienced ultra-marathoners (8 males and 1 female) participating in the Run Across Taiwan Ultra-marathon in 2018 were enrolled. The runners' Heart Spectrum Blood Pressure Monitor measurements were obtained in the standing and supine positions before and immediately after the race. Their high-sensitivity troponin T and N-terminal proB-type natriuretic peptide levels were analyzed 1 week before and immediately after the event. Heart rate was differed significantly in the immediate postrace assessment compared to the prerace assessment, in both the standing (P = .011; d = 1.19) and supine positions (P = .008; d = 1.35). Postural hypotension occurred in 4 (44.4%) individuals immediately postrace. In 3 out of 9 (33.3%) recruited finishers, the occurrence of premature ventricular complex signals in the standing position was detected; premature ventricular complex signal effect was observed in the supine position postrace in only 1 participant (11.1%). Premature ventricular complex signal was positively correlated with running speed (P = .037). Of the 6 individuals who completed the biochemical tests postrace, 2 (33.3%) had high-sensitivity troponin T and 6 (100%) had N-terminal proB-type natriuretic peptide values above the reference interval. A statistically significant increase was observed in both the high-sensitivity troponin T (P = .028; d = 1.97), and N-terminal proB-type natriuretic peptide (P = .028; d = 2.91) levels postrace compared to prerace. In conclusion, significant alterations in blood pressure and heart rate were observed in the standing position, and postexercise (postural) hypotension occurred among ultra-marathoners. The incidence of premature ventricular complexes was higher after the race than before.


Subject(s)
Autonomic Nervous System , Blood Pressure , Heart Rate , Marathon Running , Natriuretic Peptide, Brain , Troponin T , Humans , Female , Male , Autonomic Nervous System/physiology , Heart Rate/physiology , Marathon Running/physiology , Adult , Troponin T/blood , Middle Aged , Blood Pressure/physiology , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Taiwan , Ventricular Premature Complexes/physiopathology , Ventricular Premature Complexes/diagnosis , Hypotension, Orthostatic/physiopathology , Posture/physiology
14.
J Am Heart Assoc ; 13(14): e034915, 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-38979821

ABSTRACT

BACKGROUND: The accurate selection of patients likely to respond to renal denervation (RDN) is crucial for optimizing treatment outcomes in patients with hypertension. This systematic review was designed to evaluate patient-specific factors predicting the RDN response. METHODS AND RESULTS: We focused on individuals with hypertension who underwent RDN. Patients were categorized based on their baseline characteristics. The primary outcome was blood pressure (BP) reduction after RDN. Both randomized controlled trials and nonrandomized studies were included. We assessed the risk of bias using corresponding tools and further employed the Grading of Recommendations Assessment, Development, and Evaluation approach to assess the overall quality of evidence. A total of 50 studies were ultimately included in this systematic review, among which 17 studies were for meta-analysis. Higher baseline heart rate and lower pulse wave velocity were shown to be associated with significant antihypertensive efficacy of RDN on 24-hour systolic BP reduction (weighted mean difference, -4.05 [95% CI, -7.33 to -0.77]; weighted mean difference, -7.20 [95% CI, -9.79 to -4.62], respectively). In addition, based on qualitative analysis, higher baseline BP, orthostatic hypertension, impaired baroreflex sensitivity, and several biomarkers are also reported to be associated with significant BP reduction after RDN. CONCLUSIONS: In patients with hypertension treated with the RDN, higher heart rate, and lower pulse wave velocity were associated with significant BP reduction after RDN. Other factors, including higher baseline BP, hypertensive patients with orthostatic hypertension, BP variability, impaired cardiac baroreflex sensitivity, and some biomarkers are also reported to be associated with a better BP response to RDN.


Subject(s)
Blood Pressure , Hypertension , Kidney , Humans , Hypertension/physiopathology , Hypertension/surgery , Hypertension/diagnosis , Hypertension/drug therapy , Kidney/innervation , Kidney/physiopathology , Blood Pressure/physiology , Treatment Outcome , Sympathectomy/methods , Heart Rate/physiology , Pulse Wave Analysis , Renal Artery/innervation , Baroreflex/physiology
15.
BMC Public Health ; 24(1): 1868, 2024 Jul 12.
Article in English | MEDLINE | ID: mdl-38997668

ABSTRACT

BACKGROUND: Bilateral blood pressure (BP) measurement is important in cardiovascular prevention for identifying systolic interarm BP difference (IAD) and hypertension. We investigated sex-stratified IAD prevalence and its associations and coexistence with screen-detected peripheral atherosclerosis and hypertension. Furthermore, we determined the proportion misclassified as non-hypertensive when using the lower versus the higher reading arm. METHODS: This sub-study formed part of the Viborg Screening Program (VISP), a cross-sectorial population-based cardiovascular screening programme targeting 67-year-old Danes. VISP includes screening for peripheral atherosclerosis (lower extremity arterial disease and carotid plaque), abdominal aortic aneurysm, hypertension, diabetes mellitus, and cardiac disease. Self-reported comorbidities, risk factors, and medication use were also collected. Among 4,602 attendees, 4,517 (82.1%) had eligible bilateral and repeated BP measurements. IAD was defined as a systolic BP difference ≥ 10 mmHg. IAD-associated factors (screening results and risk factors) were estimated by logistic regression; proportional coexistence was displayed by Venn diagrams (screening results). RESULTS: We included 2,220 women (49.2%) and 2,297 men (50.8%). IAD was more predominant in women (26.8%) than men (21.0%) (p < 0.001). This disparity persisted after adjustment [odds ratio (OR) 1.53; 95% confidence interval (CI) 1.32-1.77]. No other association was recorded with the conditions screened for, barring potential hypertension: BP 140-159/90-99 mmHg (OR 1.68, 95% CI 1.44-1.97) and BP ≥ 160/100 mmHg (OR 1.82, 95% CI 1.49-2.23). Overall, IAD and BP ≥ 160/100 mmHg coexistence was 4% in women and 5% in men; for BP ≥ 140/90 mmHg, 13% and 14%, respectively. Among those recording a mean BP ≥ 140/90 mmHg in the higher reading arm, 14.5% of women and 15.3% of men would be misclassified as non-hypertensive compared with the lowest reading arm. CONCLUSION: Female sex was an independent factor of IAD prevalence but not associated with other arterial lesions. Approximately 15% needed reclassification according to BP ≥ 140/90 mmHg when the lower rather than the higher reading arm was used; verifying bilateral BP measurements improved detection of potential hypertension. In future, the predictive value of sex-stratified IAD should be assessed for cardiovascular events and death to verify its potential as a screening tool in population-based cardiovascular screening. TRIAL REGISTRATION FOR VISP: NCT03395509:10/12/2018.


Subject(s)
Blood Pressure Determination , Hypertension , Humans , Female , Male , Aged , Blood Pressure Determination/methods , Hypertension/epidemiology , Hypertension/diagnosis , Prevalence , Mass Screening/methods , Arm , Risk Factors , Blood Pressure/physiology , Sex Factors , Peripheral Arterial Disease/epidemiology , Peripheral Arterial Disease/diagnosis
17.
Acta Neurochir (Wien) ; 166(1): 297, 2024 Jul 15.
Article in English | MEDLINE | ID: mdl-39004670

ABSTRACT

PURPOSE: The trigeminocardiac reflex (TCR) has traditionally been characterized by a sudden decrease in heart rate, asystole, or hypotension during the manipulation of the trigeminal nerve (MTN) or its branches. While this classical TCR is well-documented, there is limited literature on alternative forms of TCR, such as the development of intraoperative hypertension (HTN) or tachycardia, and the underlying pathogenesis. Furthermore, a gap exists in understanding the correlation between intraoperative blood pressure readings and postoperative outcomes, particularly regarding pain relief in patients with trigeminal neuralgia (TN). Our study aims to examine intraoperative blood pressure trends during microvascular decompression (MVD) for TN and assess their impact on postoperative outcomes. METHODS: We selected 90 patients who underwent MVD for TN treatment. Blood pressure and heart rate were recorded both preoperatively and during the procedure, specifically during the MTN period, using an arterial line. The Barrow Neurological Institute (BNI) Pain Scale was calculated for all patients both pre- and post-operatively to evaluate pain relief after surgery. RESULTS: The mean age of the patients was 61.0 ± 12.35 years, with 64.4% being females. Classical TCR (hypotension) was observed in only 2.2% of patients, whereas 80% of patients developed hypertension (≥ 140/90) during MTN. The mean preoperative systolic blood pressure was 128 ± 22.25, and the mean intraoperative systolic blood pressure during MTN was 153.1 ± 20.2. An analysis of covariance, utilizing either preoperative BNI or duration of symptoms as covariate variables, revealed a statistically significant association between intraoperative HTN and postoperative BNI. A linear regression model demonstrated that intraoperative HTN following MTN significantly predicted a lower postoperative BNI score (p = 0.006). CONCLUSIONS: Intraoperative HTN during MTN, an observed yet underexplored phenomenon, demonstrated a correlation with improved postoperative outcomes. Furthermore, it is recommended to conduct additional investigations into potential neurovascular conflicts in patients not manifesting intraoperative HTN following MTN. A comprehensive understanding of TCR, encompassing its various forms, is vital for optimizing surgical management. This study underscores the imperative for further research to unravel the mechanisms linking intraoperative HTN to surgical outcomes in TN patients.


Subject(s)
Hypertension , Microvascular Decompression Surgery , Trigeminal Neuralgia , Humans , Trigeminal Neuralgia/surgery , Female , Middle Aged , Male , Microvascular Decompression Surgery/methods , Hypertension/surgery , Aged , Treatment Outcome , Intraoperative Complications/etiology , Blood Pressure/physiology , Reflex, Trigeminocardiac/physiology
18.
Syst Rev ; 13(1): 169, 2024 Jul 02.
Article in English | MEDLINE | ID: mdl-38956626

ABSTRACT

BACKGROUND: The acute and long-term benefits of exercise training on cardiovascular health have been well established. The systematic review and meta-analysis aimed to systematically assess the effectiveness of exercise training on arterial stiffness and blood pressure among postmenopausal women with elevated blood pressure. METHODS: A comprehensive search was conducted on PubMed, Embase, Web of Science, ProQuest, Cochrane Library, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov website from inception to September 30, 2023, to identify the randomized controlled trials (RCTs), which evaluated the effectiveness of exercise training on arterial stiffness and blood pressure in postmenopausal women. Standardized mean differences (SMD), weighted mean differences (WMD), and 95% confidence intervals (95% CIs) were calculated using random/fixed effects models. Quality assessment was performed using the modified Jadad scale and the Cochrane Risk of Bias Tool. Sensitivity analysis and subgroup analysis were conducted based on drug dosage, treatment duration, and age of administration to further explore potential heterogeneity. Funnel plots were performed to assess publication bias and Begg's regression test was carried out for funnel plot asymmetry. RESULTS: Twenty-two RCTs involving 1978 participants were included in the quantitative analysis. The mean quality of eligible studies was 4.2 out of 7 based on the modified Jadad scale. The results indicated that exercise training had a significant effect on reducing brachial-ankle pulse wave velocity [MD = - 0.69, 95%CI (- 1.11, - 0.27), P = 0.001], decreasing augmentation index (AIx) [MD = - 6.00, 95%CI (- 6.39, - 5.61), P < 0.00001] and AIx normalized to a heart rate of 75 beats per minute (AIx@75%) [MD = - 7.01, 95%CI - 7.91 to - 6.12, P < 0.00001], lowering systolic blood pressure [MD = - 6.19, 95%CI - 9.24 to - 3.15, P < 0.0001], diastolic blood pressure [MD = - 3.57, 95%CI (- 6.10, - 1.03), P = 0.006) and pulse pressure [MD = - 8.52, 95%CI (- 16.27, - 0.76), P = 0.03]. Subgroup analysis revealed that baseline blood pressure levels had a large impact on the effect of exercise training. CONCLUSIONS: The systematic review and meta-analysis suggested that exercise training may ameliorate arterial stiffness and reduce blood pressure in postmenopausal women with elevated blood pressure. However, the optimal mode of exercise training that improves arterial stiffness and blood pressure in this population requires further investigation. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42021211268.


Subject(s)
Blood Pressure , Exercise , Postmenopause , Vascular Stiffness , Humans , Vascular Stiffness/physiology , Postmenopause/physiology , Female , Blood Pressure/physiology , Exercise/physiology , Pulse Wave Analysis , Hypertension/therapy , Randomized Controlled Trials as Topic , Exercise Therapy/methods
19.
J Am Heart Assoc ; 13(14): e032568, 2024 Jul 16.
Article in English | MEDLINE | ID: mdl-38989822

ABSTRACT

BACKGROUND: Shared decision-making (SDM) has the potential to improve hypertension care quality and equity. However, research lacks diverse representation and evidence about how race and ethnicity affect SDM. Therefore, this study aims to explore SDM in the context of hypertension management. METHODS AND RESULTS: Explanatory sequential mixed-methods design was used. Quantitative data were sourced at baseline and 12-month follow up from RICH LIFE (Reducing Inequities in Care of Hypertension: Lifestyle Improvement for Everyone) participants (n=1212) with hypertension. Qualitative data were collected from semistructured individual interviews, at 12-month follow-up, with participants (n=36) selected based on their SDM scores and blood pressure outcome. Patients were cross- categorized based on high or low SDM scores and systolic blood pressure reduction of ≥10 or <10 mm Hg. Multinomial logistic regression analysis showed that predictors of SDM scores and blood pressure outcome were race and ethnicity (relative risk ratio [RRR], 1.64; P=0.029), age (RRR, 1.03; P=0.002), educational level (RRR, 1.87; P=0.016), patient activation (RRR, 0.98; P<0.001; RRR, 0.99; P=0.039), and hypertension knowledge (RRR, 2.2; P<0.001; and RRR, 1.57; P=0.045). Qualitative and mixed-methods findings highlight that provider-patient communication and relationship influenced SDM, being emphasized both as facilitators and barriers. Other facilitators were patients' understanding of hypertension; clinicians' interest in the patient, and clinicians' personality and attitudes; and barriers included perceived lack of compassion, relationship hierarchy, and time constraints. CONCLUSIONS: Participants with different SDM scores and blood pressure outcomes varied in determinants of decision and descriptions of contextual factors influencing SDM. Results provide actionable information, are novel, and expand our understanding of factors influencing SDM in hypertension.


Subject(s)
Decision Making, Shared , Hypertension , Patient Participation , Humans , Hypertension/ethnology , Hypertension/therapy , Hypertension/psychology , Hypertension/diagnosis , Hypertension/physiopathology , Male , Female , Middle Aged , Aged , Adult , Blood Pressure/physiology , Qualitative Research , Physician-Patient Relations , Health Knowledge, Attitudes, Practice/ethnology , Ethnicity
20.
JAMA Netw Open ; 7(7): e2421976, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38995643

ABSTRACT

Importance: No prior systematic review and meta-analysis has specifically verified the association of Mediterranean diet (MedDiet)-based interventions with biomarkers of cardiometabolic health in children and adolescents. Objective: To review and analyze the randomized clinical trials (RCTs) that assessed the effects of MedDiet-based interventions on biomarkers of cardiometabolic health among children and adolescents. Data Sources: Four electronic databases were searched (PubMed, Cochrane Library, Web of Science, and Scopus) from database inception to April 25, 2024. Study Selection: Only RCTs investigating the effect of interventions promoting the MedDiet on cardiometabolic biomarkers (ie, systolic blood pressure [SBP], diastolic blood pressure [DBP], triglycerides [TGs], total cholesterol [TC], high-density lipoprotein cholesterol [HDL-C], low-density lipoprotein cholesterol [LDL-C], glucose, insulin, and homeostatic model assessment for insulin resistance [HOMA-IR]) among children and adolescents (aged ≤18 years) were included. Data Extraction and Synthesis: A systematic review and meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Data were extracted from the studies by 2 independent reviewers. Results across studies were summarized using random-effects meta-analysis. Main Outcome and Measures: The effect size of each trial was computed by unstandardized mean differences (MDs) of changes in biomarker levels (ie, SBP, DBP, TGs, TC, HDL-C, LDL-C, glucose, insulin, HOMA-IR) between the intervention and the control groups. The quality of the evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluations approach. Results: Nine RCTs were included (mean study duration, 17 weeks; range, 8-40 weeks). These studies involved 577 participants (mean age, 11 years [range, 3-18 years]; 344 girls [59.6%]). Compared with the control group, the MedDiet-based interventions showed a significant association with reductions in SBP (mean difference, -4.75 mm Hg; 95% CI, -8.97 to -0.52 mm Hg), TGs (mean difference, -16.42 mg/dL; 95% CI, -27.57 to -5.27 mg/dL), TC (mean difference, -9.06 mg/dL; 95% CI, -15.65 to -2.48 mg/dL), and LDL-C (mean difference, -10.48 mg/dL; 95% CI, -17.77 to -3.19 mg/dL) and increases in HDL-C (mean difference, 2.24 mg/dL; 95% CI, 0.34-4.14 mg/dL). No significant associations were observed with the other biomarkers studied (ie, DBP, glucose, insulin, and HOMA-IR). Conclusions and Relevance: These findings suggest that MedDiet-based interventions may be useful tools to optimize cardiometabolic health among children and adolescents.


Subject(s)
Biomarkers , Diet, Mediterranean , Humans , Child , Adolescent , Biomarkers/blood , Cardiovascular Diseases/prevention & control , Cardiovascular Diseases/blood , Female , Male , Cardiometabolic Risk Factors , Randomized Controlled Trials as Topic , Blood Pressure/physiology
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