bluuebunny/crossref_metadata_2025_split huggingface dataset:
Regional variation of age-related blood pressure trajectories and their association with blood pressure control rates, disability-adjusted life years and death
Authors: Nolde J , Beaney T , Carnagarin R , Stergiou G S , Poulter N R , Schutte A E , Schlaich M P 
Published: October 2024

Abstract

Background/Introduction
While the relationship between blood pressure (BP) changes and increasing age is well described, age-related BP trajectories may vary substantially across different populations and associated with differential CV risk and outcomes.

Purpose
The dataset of the May Measurement Month (MMM) international campaigns enables a unique investigation of regional, socio-economic and sex differences in age-BP trajectories and their association with major public-health outcomes.

Method
Global BP data from more than 4,5 million adult (≥18 years) screenees obtained during the cross-sectional MMM campaigns in 2017, 2018, 2019, and 2021 were used for analysis. Average BP and slopes of BP changes across age groups were calculated within regional, socio-economic and sex strata. BP slopes of individuals between 30 and 70 years of age were derived from adjusted linear regression models, along with baseline BP estimates at young age. These BP slopes were correlated in regression models adjusted for baseline BP at young age with country-specific all-cause rates of DALYs (Disability-Adjusted Life Years), death (both from Global Burden of Disease Study 2019), life expectancy (World Bank data SP.DYN.LE00.IN 2019) and BP control rates (NCD Risk Factor Collaboration).

Results
Age-related BP changes differed distinctly across global geographic regions, income levels, and between sexes. The steepest increase in BP with age was observed in populations from Africa and Europe, whereas a more gradual rise in BP with increasing age was seen in South-East Asian populations. Women had lower BP levels than men at younger ages (twenties and thirties), but subsequently experienced a more pronounced age-related BP increase resulting in diminishing sex differences across older age groups. Geographically divergent age-related BP trajectories were significantly associated with major national public health indicators. Globally, the steeper the age-related BP slope, the stronger the association with poor BP control (β = -0.46 [95% CI: -0.74; -0.19], p=0.001), increased DALY’s (β = 66155.68 [95% CI: 44847.0; 87464.36], p&lt;0.001) and death rates. (β = 1017.3 [95% CI: 351.72; 1682.89], p=0.003).

Conclusion
Age-related BP trajectories vary considerably across global populations and contribute considerably to the variability in BP-related risks and adverse outcomes across regions. Effective public health strategies may require region-specific targeting of lifestyle and other factors contributing to adverse BP trajectories to improve health outcomes.Average blood pressure by ageAssiciations with public health metrics
One-year risk of all-cause death and major cardiovascular events in patients presenting with hypertensive crisis. A report from a global federated research health network
Authors: Bucci T , Argyris A , Alsomali A , Lam S H O , Gerra L , Proietti R , Beevers G D , Shantsila E , Shantsila A , Lip G Y H 
Published: October 2024

Abstract

Background
Few data are available about the clinical course of patients presenting with hypertensive crisis who are discharged alive from hospital.

Purpose
To assess the long-term risk of adverse events in patients with hypertensive crises.

Methods
Retrospective study utilizing a research health network. Based on the ICD-10-CM codes recorded between 2000 and 2022, from 85 health care associations mainly located in the United States, patients with hypertensive crisis were subdivided into hypertensive urgencies (I16.0) and hypertensive emergencies (I16.1). In those with hypertensive emergencies, the type of target organ damage was reported, ie. central nervous system (ischemic stroke, hypertensive encephalopathy, intracerebral hemorrhages), cardiovascular (CVS: myocardial infarction (MI), heart failure (HF), aorta dissection (AD)), or renal (acute kidney failure). Primary outcomes were the one-year risks of all-cause death, and major cardiovascular events (MACE: MI, stroke, cardiac arrest, AD, and HF). Secondary outcomes were the risks for each type of MACE. Cox regression analysis after propensity score matching (PSM) 1:1 was used to produce hazard ratios (HRs) and 95% Confidence Intervals (95%CIs).

Results
Overall, we identified 25 294 patients with hypertensive emergency (age 62.4±15.7, 46.1% females) and 21,737 patients with hypertensive urgency (age 63.5±17.2, 55.5% females). Patients with hypertensive emergency were more likely males, Black or African American origin and showed a higher prevalence of chronic hypertensive-related complications, vs. those with hypertensive urgency. After PSM, patients with hypertensive emergency showed a higher risk of all-cause death (HR, 1.34, 95%CI 1.25-1.44) and MACE (HR 4.09, 95%CI 3.87-4.33), vs. those with hypertensive urgency.
Of the secondary outcomes, patients with hypertensive emergency had increased risks of MI (HR 3.33, 95%CI 3.03-3.67), stroke (HR 4.73, 95%CI 4.33-5.17), cardiac arrest (HR 1.30, 95%CI 1.07-1.58), AD (HR 5.49, 95%CI 3.90-7.73), and HF (HR 3.01, 95%CI 2.74-3.14). All the different types of organ involvement during the hypertensive emergency were each associated with similar long-term risks of adverse events (Figure 1).

Conclusion
Patients with hypertensive emergency have a high long-term risk of MACE and all-cause death. Preventing the onset of target organ damage in patients with hypertensive crisis is crucial to mitigate their long-term risk of adverse events.
Histopathological myocardial changes in patients with severe aortic stenosis referred for surgical valve replacement: a CMR correlation study
Authors: Reis Santos R , Abecasis J , Lopes P , Maltes S , Ferreira A , Ribeiras R , Andrade M J , Sousa Uva M , Gil V , Felix A , Ramos S , Cardim N 
Published: October 2024

Abstract

Background
Myocardial fibrosis (MF) takes part in left ventricular (LV) remodeling in patients with aortic stenosis (AS), driving the transition from hypertrophy to heart failure. The structural events that occur in this transition are not fully enlightened.

Aim
To describe histopathology changes at endomyocardial biopsy (EMB) in patients with severe AS referred to surgical aortic valve replacement (AVR); to correlate them with LV tissue characterization from pre-operative cardiac magnetic resonance (CMR).

Methods
One-hundred-fifty-eight patients (73[68-77]years, 50%women) referred for surgical AVR because of severe symptomatic AS, with pre-operative CMR (n=143) with late gadolinium enhancement (LGE), T1, T2 mapping and extracellular volume fraction (ECV) quantification. Intra-operative septal EMB was obtained in 129 patients. MF was assessed through Masson ́s Trichrome histochemistry. Immunohistochemistry was performed for both inflammatory cells and extracellular matrix (ECM) characterization (Type I Collagen, Fibronectin, Tenascin C).

Results
Non-ischemic LGE was present in 106 patients (67.1%) (median fraction: 5.0% [2.0-9.7]). Native T1 was above normal: 1053ms[1024-1071] and T2 within normal range (39.3ms[37.3-42.0]). Median MF was 11.9%[6.54-19.97], with predominant type I collagen perivascular distribution (95.3%). Subendocardial cardiomyocyte ischemic-like changes were identified in 45% of EMB. There was no inflammation, despite ECM remodeling expression. MF quantification at EMB was correlated with LGE mass and indexed ECV (p=0.008; p=0.017, respectively).

Conclusion
Patients with severe symptomatic AS referred for surgical AVR have unspecific histological myocardial changes, including signs of cardiomyocyte ischemic insult. ECM remodeling is ongoing, with MF heterogeneity. These features may be recognized by comprehensive CMR involving LGE, T1 mapping derived indexes and their combination with LV morphofunctional characterization.
Prevalence and prediction of masked uncontrolled hypertension in patients recently hospitalised for an acute coronary syndrome
Authors: Hellqvist H , Erlinge D , Lindahl B , Jernberg T , Oldgren J , James S , Al-Khalili F , Kahan T , Spaak J 
Published: October 2024

Abstract

Background
Masked uncontrolled hypertension (MUCH) is defined as normal office blood pressure (BP) but elevated out-of-office BP in patients on antihypertensive treatment. MUCH is associated with similar cardiovascular risk as sustained hypertension and is clinically challenging since this often remains undetected without out-of-office BP measurements.

Purpose
To study the prevalence of MUCH following an acute coronary syndrome and to utilise machine learning methods to develop prediction models for identifying MUCH.

Methods
Ambulatory 24-h BP measurement (ABPM) was performed in 100 patients attending the cardiology outpatient clinic at a Swedish university hospital following an acute coronary syndrome, as part of a study which screened for co-morbidities. From the SWEDEHEART registry, 106 variables during the hospital care period and subsequent follow-up visit (after 6-10 weeks) were pre-processed including filtering on 5 or more missing values and zero or near-zero variance. Variable importance for the prediction of MUCH (office BP &lt; 140/90 mm Hg at ABPM start but mean 24-h BP ≥ 130/80 mm Hg) was assessed using the Boruta and least absolute shrinkage and selection operator (LASSO) machine learning algorithms. Subsequently, logistic regression, LASSO and random forest models using different variable subsets were evaluated by receiver operating characteristic area under the curve (AUC) in repeated cross-validation.

Results
Age was 62.0±8.4 years, 74% male, 54% had NSTEMI and 46% STEMI. The follow-up visit and ABPM were performed at median 7 and 11 weeks, respectively, after hospital discharge. Among 90 patients with complete data and ABPM recordings, 31 had mean 24-h BP above target levels, of which 18 were identified with MUCH. Patients with MUCH had lower eGFR (68±11 vs 76±12 ml/min/1.73m², P=0.009), and more often a history of hypertension (89 vs 53%, P=0.005) and diabetes mellitus (44 vs 11%, P=0.003). In total, 65 variables where eligible for machine learning after filtering. Boruta and LASSO identified pulse pressure at the follow-up visit, serum creatinine, diabetes mellitus and history of hypertension as important predictors. Random forest, logistic regression and LASSO showed mean AUC 0.826, 0.822, and 822, respectively, in cross validation using these predictors.

Conclusions
In this small trial, one in five had MUCH at follow-up after an acute coronary syndrome, which highlights the importance of out-of-office BP measurements. The easily accessible measures of pulse pressure at the follow-up visit, serum creatinine, diabetes mellitus and history of hypertension were identified as important predictors of MUCH. A simple prediction model may be used as a clinical decision support tool after appropriate external validation.
Unleashing the potential: early evaluation of blood pressure control with novel measurements in patients with hypertension
Authors: Zhao Y , Moran L I , Yi Z 
Published: October 2024

Abstract

Objective
To assess the prognostic value of two novel blood pressure measurements——short-term cumulative systolic blood pressure (SBP) load and Time in Target Rang (TTR) in major adverse cardiovascular outcomes and all-cause mortality.

Method
This is a post-hoc analysis of the SPIRNT (Systolic Blood Pressure Intervention Trial). Participants with complete record of BP values and no adverse events occurred in the initial 90-days follow-up were enrolled. Short-term cumulative SBP load and TTR were calculated by the 3-month SBP values in the follow-up period (Fig 1). The primary outcome was major adverse cardiovascular events (MACEs), defined as the composite of myocardial infarction, stroke, heart failure and cardiovascular death. Secondary outcomes were the components of the primary outcomes and all-cause mortality.

Results
The study population included 8639 adults (median [IQR]or mean (%) baseline age, 67 [61,76] years; 2940 women (35.1%); Median follow-up time 3.8[3.3-4.4] years). 559 MACEs were occurred. Participants categorized by tertiles of cumulative SBP Load (T1: [0,0.1572]; T2: (0.1572 ,3.5946]; T3: (3.5946 ,30.2949]) showed a significant increase hierarchical trend (P for trend &lt;0.05) in the incidence of MACEs and stroke. For Participants grouped by SBP TTR (T1: [0,21.2657]; T2: (21.2657 ,71.1462]; T3: (71.1462 ,100]), it indicated a decrease hierarchical trend (P for trend &lt;0.05) in the incidence of MACEs and MI (Fig2 and Fig3). Both short-term cumulative SBP Load (HR: 1.117(1.033-1.208)) and TTR (HR: 0.861(0.785-0.945)) were correlated with MACEs independently(tabal1). According to C-statistics and Net Reclassification Indexes (NRI), short-term cumulative SBP Load and TTR both outperformed mean SBP and SBP standard derivation (SD) on the prognosis value of MACEs. Moreover, our results showed that the coefficient of cumulative SBP Load under penalty decreased to 0 with the largest log(lambda),which indicted a major role across 4 different measures in models. (Fig 4).

Conclusions
Both short-term cumulative SBP load and TTR had an independent prognosis value for MACEs superior to mean SBP and SBP SD in hypertension patients without diabetes. This study provided the evidence of novel BP measurements for early assessment of BP levels after antihypertensive treatment.
Prognostic value of cardiac magnetic resonance global circumferential strain assessed by feature tracking techniques in asymptomatic patients with significant aortic regurgitation
Authors: Carrion-Sanchez I , Ramos Cano P , Monteagudo Ruiz J M , Garcia Sebastian C , Hinojar Baydes R , Antonana Ugalde S , Garcia Martin A , Martinez-Vives P , Martin Pinacho J , Ayala Carbonero A , Gonzalez A , Zamorano J L , Fernandez-Golfin C 
Published: October 2024

Abstract

Introduction
Cardiac magnetic resonance feature tracking (CMR-FT) deformation techniques have gained significant interest in recent years. They provide a comprehensive evaluation of myocardial function and improve the reproducibility of echocardiography strain techniques.

Purpose
The aim of this study was to evaluate whether CMR-FT deformation parameters play a role predicting worse clinical evolution in patients with chronic significant aortic regurgitation (AR) not meeting guidelines intervention criteria.

Methods
We included 85 patients with significant AR (moderate, moderate/severe, and severe) referred for CMR. Only asymptomatic patients with preserved left ventricle ejection fraction (LVEF) were considered for inclusion. Other concomitant myocardiopathies were excluded. Conventional functional left chambers parameters as well as myocardial deformation were evaluated, including global longitudinal strain (GLS), global circumferential strain (GCS) and global radial strain (GRS). A composite clinical major outcome was assessed, including admission heart failure admission, need for aortic valvule replacement and all-cause mortality.

Results
The mean age of the sample was 62 years old. One third of the patients were females. Other clinical baseline characteristics were not significantly different between groups when compared with Chi-squared and T-test statistical analysis. Mean follow-up was 42 months (±31). 21 patients presented with the composited outcome previously described. End-diastolic and end-systolic volumes did not differ between groups. Mean end-diastolic volume (EDV) was 196 ± 6.1 mL and mean end-systolic volume (ESV) was 88 ± 3.4 mL. Mean values of CMR-FT GLS, GCS and GRS were -14.1%, 22.8% and -16.9% respectively. GCS was selected as the best predictor for the combined endpoint point, with and area under the ROC curve of 0.67. A GCS value &lt;-17% was selected as the optimal cut-off point. This value predicted events as is shown in Kaplan-Meier curves (HR 3.6, CI 95% 1.42 - 9.02, p = 0.007). A multivariate analysis showed that this association was independent of left ventricle (LV) ejection fraction, LV volumes and left atrial (LA) volume.

Conclusion
CMR-FT deformation parameters are impaired in significant AR patients even if intervention criteria are not met. A value of GCS &lt; -17% in this population could predict a worse clinical evolution and emerges as a promising new tool helping clinical decision making in this challenging population.Kaplan-Meier curve free-event survival
10 years after treatment with renal denervation of the sympathetic nerves for resistant hypertension: what happened to the patients and their office blood pressure? An observational study
Authors: Melchior T , Kelbaek H S , Olsen M H , Oestergaard O V , Kjoeller-Hansen L 
Published: October 2024

Abstract

Background
Catheter-based renal denervation of the sympathetic nerves (RDN) for resistant hypertension has long been controversial. A renewed clinical and scientific interest in defining the appropriate role of RDN in the treatment of resistant hypertension has become evident in recent years. The efficacy and safety of RDN treatment is mainly based on available data up to three years, whereas data concerning the long-term effect and safety are scarce.

Purpose
We therefore wanted to investigate the long time change in blood pressure (BP) in patients treated with RDN for resistant hypertension.

Methods
A review of data from the electronic patient journal concerning all RDN treated patients was initiated and completed in October 2023. Every registration of an office BP listed in the patient file, antihypertensive treatment, cardiovascular events, and renal function between 2012 and 2023 were registered. For each patient the average of all office post RDN blood were averaged for every year and for their complete follow-up. The outcome in blood pressure was the change in BP from baseline pre RDN office to follow-up

Results
Between January 2012 and October 2013, 19 consecutive patients underwent RDN treatment, 10 men and 9 women with a median age of 63 years (range 35-74 years). At baseline the median systolic office BP was 181 mmHg (range 162–230 mmHg) and the diastolic office BP 97 mmHg (range 82-123 mmHg) on a median of 5 (range 0-7 ) antihypertensive drugs. During follow-up the number of antihypertensive drugs were reduced in 7, unchanged in 10, and increased in 2 patients. Two patients left the outpatient clinic with normal BP after 2 years. Two patients developed heart failure after 7 years and were censored at that time-point. 15 (79%) patients had office BP recorded up to 9 or 10 years. In the 15 (79%) patients with available office BP 9 to 10 years after RDN the median systolic and diastolic office BPs were reduced by 39 mmHg (range -2 to - 66 mmHg) and 18 mmHg (range -11 to - 55 mmHg) respectively, relative reduction 22% (range 5-36%) and 20% (range 6-32), respectively.

Conclusion
During a follow-up of 9 to 10 years after RDN without a step-up in antihypertensive medication a relative decrease of ~20% in systolic and diastolic BP was observed.
The impact of blood pressure guidelines on the cardiovascular event risk in Japanese patients with coronary artery disease in a real-world database using a multimodal data acquisition system
Authors: Oba Y , Kabutoya T , Kohro T , Imai Y , Kario K , Ishii M , Tsujita K , Fujita H , Matoba T , Kiyosue A , Mizuno M , Nakayama M , Miyamoto Y , Sato H , Nagai R 
Published: October 2024

Abstract

Background
The European Society of Hypertension and the Japanese Society of Hypertension have established a blood pressure (BP) guideline for coronary artery disease (CAD): 130/80 mmHg. The impact of adhering to this BP guideline on the prognosis of Japanese patients with CAD after they have undergone percutaneous coronary intervention (PCI) is unclear.

Purpose
We investigated the impact of the current guideline-recommended BP value 130/80 mmHg on the prognosis of Japanese patients with CAD by using 'big data,' i.e., the Clinical Deep Data Accumulation System (CLIDAS) database.

Methods
We evaluated the data of 8,793 CAD patients who underwent cardiac catheterization at six university hospitals and Japan's National Cerebral and Cardiovascular Center (mean ± std. dev. 70 ± 11 years, 78% male, 43% with acute coronary syndrome [ACS]). We categorized the patients based on their BP management: those adhering to the guideline-recommended BP (&lt;130/80 mmHg) and those under stricter BP control criteria (&lt;120/70 mmHg and &lt;110/60 mmHg). We compared the incidence of major adverse cardiovascular events (MACCEs) between these groups, with MACCEs being a composite endpoint (cardiovascular death, stroke, and myocardial infarction). We analyzed the relationship between BP classification and MACCE separately in two groups: the patients with ACS and those with chronic coronary syndrome (CCS).

Results
During an average follow-up period of 33 months, 710 MACCEs occurred, comprising 234 cardiovascular deaths, 305 strokes, and 270 myocardial infarctions, with some cases overlapping. No significant difference in the MACCE rate was observed between the group with BP below 130/80 mmHg and the group with BP above 130/80 mmHg (hazard ratio [HR] 0.88, 95% confidence interval [CI] 0.75–1.04, p=0.133). In the ACS group, the patients maintaining BP below 130/80 mmHg had a significantly lower MACCE incidence (HR 0.75, 95%CI: 0.59–0.95, p=0.017) and a significantly lower incidence of stroke (HR 0.47, 95%CI: 0.33–0.68, p&lt;0.001), whereas no significant difference in the MACCE incidence was observed in the CCS group (HR 0.91, 95%CI: 0.73–1.13, p=0.393). Blood pressure values below 120/70 mmHg (HR 1.13, 95%CI: 0.97–1.31, p=0.109) and 110/60 mmHg (HR 1.23, 95%CI: 1.06–1.43, p=0.008), corresponded to an increased rate of MACCEs, becoming more pronounced at BP values &lt;110/60 mmHg.

Conclusion
Achieving the BP guideline target of &lt;130/80 mmHg is associated with improved outcomes in CAD patients, particularly regarding reducing the risk of stroke among patients with ACS. However, BP control at values that are too low may potentially worsen the prognosis for CAD patients.Kaplan–Meier curve
HbA1c variability and macrovascular benefits of intensive blood pressure control in patients with type 2 diabetes
Authors: Wang X , Pei J 
Published: October 2024

Abstract

Background
Hypertension is the most common and manageable cardiovascular risk factor in patients with type 2 diabetes. However, the optimal target for blood pressure (BP) control in patients with type 2 diabetes remains a subject of debate.

Purpose
The aim of this study was to classify levels of haemoglobin A1c (HbA1c) variability using a machine learning algorithm and to investigate the impact of HbA1c variability on the effectiveness of intensive BP control.

Methods
Data from the Action to Control Cardiovascular Risk in Diabetes Blood Pressure (ACCORD-BP) trial were utilised. K-means clustering was utilised to group patients into three categories with low, medium, and high HbA1c variability levels, based on the HbA1c variability score and baseline HbA1c values. The primary outcome was a composite of non-fatal myocardial infarction (MI), stroke, or death from cardiovascular causes. The secondary outcome was all-cause mortality.

Results
In patients with low HbA1c variability rather than medium or high HbA1c variability, intensive BP control significantly reduced the risk of the primary outcome on a relative scale (HR: 0.60, 95%CI: 0.40-0.90, P interaction was 0.03), non-fatal MI (HR: 0.61, 95%CI: 0.37-1.00, P interaction was 0.04), and stroke (HR: 0.19, 95%CI: 0.05-0.64, P interaction was 0.02) or absolute scales. Regardless of the variability group, intensive BP control did not reduce the risk of cardiovascular death or all-cause mortality (P interaction &gt; 0.05) both on relative and absolute risk scales.

Conclusions
Patients with type 2 diabetes who have low HbA1c variability may benefit from intensive BP control, particularly in significantly reducing the risk of non-fatal MI and stroke.