bluuebunny/crossref_metadata_2025 huggingface dataset:
Grounded theory: what makes a grounded theory study?
Authors: Turner Carley , Astin Felicity
Published: January 2021

Grounded theory (GT) is both a research method and a research methodology. There are several different ways of doing GT which reflect the different viewpoints of the originators. For those who are new to this approach to conducting qualitative research, this can be confusing. In this article, we outline the key characteristics of GT and describe the role of the literature review in three common GT approaches, illustrated using exemplar studies.
Patients’ reflections on prehospital symptom recognition and timely treatment of myocardial infarction
Authors: Fålun Nina , Langørgen Jørund , Fridlund Bengt , Pettersen Trond , Rotevatn Svein , Norekvål Tone M
Published: January 2021

Aims

Early treatment is crucial to successful therapy in patients with acute myocardial infarction (MI). Prehospital delay is associated with increased morbidity and mortality. There is little empirical evidence of patients’ reflections on prehospital symptoms of MI and timely treatment at the time of discharge from hospital. To explore patients’ reflections on prehospital symptoms of MI and their experiences of interaction with local hospitals, general practitioners, and laypersons.

Methods and results

An inductive explorative design with a qualitative method approach was used to conduct in-depth interviews of patients after confirmed MI. Twenty patients were purposefully selected based on age and gender. Face-to-face, semi-structured interviews were conducted prior to hospital discharge. The interviews were organized around a set of predetermined, open-ended questions, transcribed verbatim and analysed using qualitative content analysis. There were patients who acted upon severe symptoms of MI by seeking medical assistance. Patients commonly experienced that the time from the onset of symptoms to treatment posed a transitional challenge. They did not take subtle signs of MI seriously; they underestimated symptoms of MI and delayed seeking medical assistance. Patients frequently experienced that healthcare professionals did not take them seriously, as they struggled to gain access to healthcare services.

Conclusion

This study highlights patients’ unique experiences of the pathway from symptom onset to confirmed MI. Severe chest pain is associated with MI and triggers an immediate need for care. However, patients often underestimated moderate chest pain or subtle signs and symptoms of MI. Existing knowledge gaps concerning the misinterpretation of symptoms in primary care need to be addressed in order to reduce this clinical challenge.
Associating modifiable lifestyle factors with multimorbidity in community dwelling individuals from mainland China
Authors: Shao Jing , Wang Xiyi , Zou Ping , Song Peige , Chen Dandan , Zhang Hui , Tang Leiwen , Huang Qingmei , Ye Zhihong
Published: January 2021

Aims 

Lifestyle factors have been well-established as essential targets for fighting individual chronic diseases, but little research has concentrated on multimorbidity from the perspective of multiple lifestyle factors in the Chinese population. Thus, this study aimed to explore the associations of lifestyle factors with the occurrence of multimorbidity.

Methods and results 

Cross-sectional data retrieved from the China Health and Retirement Longitudinal Study were used for analysis. Multimorbidity was calculated on a simple count of self-reported chronic conditions. Lifestyle factors included sleep duration, physical activity, alcohol intake, smoking status, and body mass index. Logistic regression analysis was used to examine the independent and accumulating effects of lifestyle factors on multimorbidity. Latent class analysis was performed to explore the lifestyle patterns. Six thousand, five hundred, and ninety-one valid subjects were included for analysis. Overall, the community dweller’s median number of chronic conditions was 1 (range 1–11) and median number of high-risk lifestyle factors was 2 (range 0–5). All lifestyle factors were associated with the occurrence of multimorbidity but varied between genders. We also identified that participants who accumulated more unhealthy lifestyle factors having a higher likelihood of multimorbidity. ‘Physical activity and weight’, ‘smoke and drink’, and ‘sleep and weight’ dominated high-risk lifestyles were the most common lifestyle patterns.

Conclusion 

This study revealed the associations of unhealthy lifestyle factors and their accumulating effect with multimorbidity in Chinese community dwellers. Three common lifestyle patterns indicated that a holistic approach focused on engaging and changing multiple modifiable lifestyle behaviours within an individual might be more effective in managing multimorbidity.
Oxygen and pulmonary arterial hypertension: effects, mechanisms, and therapeutic benefits
Authors: Green Simon , Stuart Deidre
Published: January 2021

Oxygen is a pulmonary vasodilator. Although treatment of pulmonary arterial hypertension (PAH) is focused on pulmonary vasodilation, treatment guidelines do not recommend O2 therapy for patients unless they develop hypoxaemia. These guidelines point to a lack of evidence of benefit of O2 therapy from randomized controlled trials (RCTs) and to evidence of lack of benefit in a single RCT involving patients with Eisenmenger syndrome. These guidelines did not identify major limitations with the Eisenmenger study or consider other evidence of therapeutic benefit. Recent advances in mechanistic understanding of O2 effects on pulmonary vascular tone, along with substantial evidence of acute effects of O2 in PAH patients, challenge the view that benefits of O2 arise only through correction of hypoxaemia. Evidence presented in this review shows that O2 acts as a pulmonary vasodilator in patients who are normoxaemic; that this probably involves an alveolar mechanism in addition to a blood-borne (oxyhaemoglobin) mechanism; and that therapeutic benefit of O2 does not depend on arterial O2 levels. This suggests that O2 has potential therapeutic benefit for all patients with PAH. Clinical guidelines and practice related to O2 therapy need to be reassessed, and further research is needed.
Estimation of LDL cholesterol in chronic kidney disease
Authors: Bauer Frederic , Seibert Felix S , Rohn Benjamin , Babel Nina , Westhoff Timm H
Published: January 2021

Aims 

Most of the laboratories make use of the Friedewald formula to assess low-density lipoprotein cholesterol (LDL-C). The accuracy of this approach, however, crucially depends on triglyceride concentrations. Since hypertriglyceridaemia is a characteristic trait of the lipid profile in chronic kidney disease (CKD), the present study examines the accuracy of the Friedewald formula in this population. It aims to derive and validate a more accurate equation for CKD.

Methods 

Cross-sectional study on two cohorts of subjects (overall n = 3.514) with estimated glomerular filtration rate (eGFR) <60 mL/min comparing directly measured LDL-C (LDL-Cmeas) as assessed by an enzymatic assay (Roche, Switzerland) to concentrations estimated by the Friedewald (LDL-CF) and the Martin's formula (LDL-CM). Accuracy was analysed by Bland–Altman and linear regression analyses. In the first cohort, a novel formula was derived to assess LDL-C in CKD. The formula was validated in Cohort 2.

Results 

Cohort 1 comprised 1738 subjects, and Cohort 2 comprised 1776 subjects. The mean eGFR was 29.4 ± 14.4 mL/min. In Cohort 1, LDL-CF was highly correlated with LDL-Cmeas (R2 = 0.92) but significantly underestimated LDLmeas by 11 mg/dL. LDL-C = cholesterol – HDL – triglycerides/7.98 was derived as the optimal equation for the calculation of LDL-C in Cohort 1 and was successfully validated in Cohort 2 (bias of 1.6 mg/dL). The novel formula had a higher accuracy than both the Friedewald (bias –12.2 mg/dL) and the Martin's formula (bias –4.8 mg/dL).

Conclusion 

The Friedewald formula yields lower LDL-C concentrations in CKD than direct enzymatic measurements, which may lead to undersupply of this cardiovascular high-risk population in a treat-to-target approach.
Resumption of sexual activity after acute myocardial infarction and long-term survival
Authors: Cohen Gali , Nevo Daniel , Hasin Tal , Benyamini Yael , Goldbourt Uri , Gerber Yariv
Published: January 2021

Aims

Sexual activity is an important factor in the overall quality of life. We examined whether resumption of sexual activity frequency within the first few months after myocardial infarction (MI) is associated with long-term survival.

Methods and results

Sexually active patients aged ≤65 years (n = 495; median age, 53 years), drawn from the longitudinal Israel Study of First Acute Myocardial Infarction, were interviewed during the index hospitalization (1992–93) and after 3–6 months. Resumption of sexual activity was defined as abstaining/decreasing or maintaining/increasing according to self-reported frequency post- vs. pre-MI. Patients were followed for all-cause and cause-specific mortality through national registries. A propensity score for sexual activity resumption was calculated, based on which inverse probability weighted Cox models were constructed to examine associations. Patients who maintained/increased frequency [n = 263 (53%)] were more likely to be of higher socioeconomic status and to express lower levels of depression than their abstained/decreased counterparts. In the propensity score-weighted synthetic sample, the distribution of measured baseline covariates was similar across exposure categories. During a median follow-up of 22 years, 211 (43%) patients died. Maintaining/increasing sexual activity frequency was inversely associated with all-cause mortality [hazard ratio (HR) 0.65, 95% confidence interval (CI) 0.48–0.88], compared with abstaining/reducing. The inverse association was more robust for non-cardiovascular mortality (HR 0.56, 95% CI 0.36–0.85) than cardiovascular mortality (HR 0.90, 95% CI 0.53–1.51).

Conclusions

Resumption of sexual activity frequency within the first months after MI was strongly associated with improved long-term survival, highlighting the need for sexual counselling shortly after MI.
Screening for abdominal aortic aneurysm in patients with clinically manifest vascular disease
Authors: de Boer Annemarijn R , Vaartjes Ilonca , van Dis Ineke , van Herwaarden Joost A , Nathoe Hendrik M , Ruigrok Ynte M , Bots Michiel L , Visseren Frank L J ,   the UCC-SMART study group
Published: January 2021

Aims

Declining prevalence of abdominal aortic aneurysm (AAA) might force a more targeted screening approach (high-risk populations only) in order to maintain (cost-)effectiveness. We aimed to determine temporal changes in the prevalence of screening-detected AAA, to assess AAA-related surgery, and evaluate all-cause mortality in patients with manifest vascular disease.

Methods and results

We included patients with manifest vascular disease but without a history of AAA enrolled in the ongoing single-centre prospective UCC-SMART cohort study. Patients were screened at baseline for AAA by abdominal ultrasonography. We calculated sex- and age-specific prevalence of AAA, probability of survival in relation to the presence of AAA, and the proportion of patients undergoing AAA-related surgery. Prevalence of screening-detected AAA in 5440 screened men was 2.5% [95% confidence interval (CI) 2.1–2.9%] and in 1983 screened women 0.7% (95% CI 0.4–1.1%). Prevalence declined from 1997 until 2017 in men aged 70–79 years from 8.1% to 3.2% and in men aged 60–69 years from 5.7% to 1.0%. 36% of patients with screening-detected AAA received elective AAA-related surgery during follow-up (median time until surgery = 5.3 years, interquartile range 2.5–9.1). Patients with screening-detected AAA had a lower probability of survival (sex and age adjusted) compared to patients without screening-detected AAA (51%, 95% CI 41–64% vs. 69%, 95% CI 68–71%) after 15 years of follow-up.

Conclusion

The prevalence of screening-detected AAA has declined over the period 1997–2017 in men with vascular disease but exceeds prevalence in already established screening programs targeting 65-year-old men. Screening for AAA in patients with vascular disease may be cost-effective, but this remains to be determined.
Sinergy between drugs and devices in the fight against sudden cardiac death and heart failure
Authors: Boriani Giuseppe , De Ponti Roberto , Guerra Federico , Palmisano Pietro , Zanotto Gabriele , D’Onofrio Antonio , Ricci Renato Pietro
Published: January 2021

The impact of sudden cardiac death (SCD) in heart failure (HF) patients is important and prevention of SCD is a reasonable and clinically justified endpoint if associated with a reduction in all-cause mortality.

According to literature, in HF with reduced ejection fraction, only three classes of agents were found effective in reducing SCD and all-cause mortality: beta-blockers, mineralcorticoid receptor antagonists and, more recently, angiotensin-receptor neprilysin-inhibitors. In the PARADIGM trial that tested sacubitril/valsartan vs. enalapril, the 20% relative risk reduction in cardiovascular deaths obtained with sacubitril/valsartan was attributable to reductions in the incidence of both SCD and death due to HF worsening and this effect can be added to the known positive effect of implantable cardioverter-defibrillators in appropriately selected patients.

In order to maximize the implementation of all the available treatments, patients with HF should be included in virtuous networks with a dialogue between all the physician involved, with commitment by all these physicians for appropriate decision-making on application of pharmacological and device treatments according to available evidence, as well as commitment for drug titration before and after device implant, taking advantage from remote monitoring, and with the safety of back up device therapy when indicated. There are potential synergistic effects of drug therapy, with all the therapies acting on neuro-hormonal and sympathetic activation, but specifically with sacubitril/valsartan, and device therapy, in particular cardiac resynchronization therapy, with added incremental benefits on positive cardiac remodelling, prevention of HF progression, and prevention of ventricular tachyarrhythmias.
Diagnostic and prognostic value of low QRS voltages in cardiomyopathies: old but gold
Authors: Valentini Francesca , Anselmi Francesca , Metra Marco , Cavigli Luna , Giacomin Elisa , Focardi Marta , Cameli Matteo , Mondillo Sergio , D’Ascenzi Flavio
Published: January 2021

The interpretation of 12-lead resting electrocardiogram (ECG) in patients with a definitive diagnosis or with the suspicion of a cardiomyopathy represents a cornerstone for the diagnostic work up and management of patients. Although low electrocardiographic QRS voltages (LQRSV) detected by 12-lead resting ECG have historically been acknowledged by physicians, in view of recent evidence on the demonstration of myocardial scar by cardiac magnetic resonance and its relevance as a cause of sudden cardiac death even in young individuals, a new interest has been raised about the utility of LQRSV in the clinical practice. Beyond their diagnostic value, LQRSV have also demonstrated a prognostic role in different cardiomyopathies. The present review summarizes the diagnostic and prognostic value of LQRSV in cardiomyopathies, reporting the new evidence, primarily based on advanced imaging studies, supporting the clinical utility of this parameter.
Association of apolipoprotein levels with peripheral arterial disease: a meta-analysis of literature studies
Authors: Forte Francesco , Calcaterra Ilenia , Lupoli Roberta , Orsini Roberta Clara , Chiurazzi Martina , Tripaldella Maria , Iannuzzo Gabriella , Di Minno Matteo Nicola Dario
Published: January 2021

Aims

Lower limb peripheral artery disease (PAD) is a leading cause of atherosclerotic cardiovascular disease (ASCVD). Discordant data are available on the association between apolipoprotein and PAD. We performed a meta-analyses on the association between apolipoprotein (apo)B, apoA-I, and apoB/apoA-I ratio with PAD.

Methods and results

PubMed, Web of Science, Scopus databases were systematically searched. Studies providing data about apoB, apoA-I, apoB/apoA-I ratio in PAD subjects and non-PAD controls were included. Differences between PAD and non-PAD subjects were expressed as mean difference (MD) with pertinent 95% confidence intervals (95%CI). Twenty-two studies were included. Peripheral artery disease subjects showed higher apoB (MD: 12.5 mg/dL, 95%CI: 2.14, 22.87) and lower apoA-I levels (MD: −7.11 mg/dL, 95%CI: −11.94, −2.28) than non-PAD controls. Accordingly, ApoB/ApoA-I ratio resulted higher in PAD subjects than non-PAD controls (MD: 0.11, 95% CI: 0.00, 0.21). Non-HDL-C showed a direct association with the difference in apoB (z-value: 4.72, P < 0.001) and an inverse association with the difference of apoA-I (z-value: −2.43, P = 0.015) between PAD subjects and non-PAD controls. An increasing BMI was associated with an increasing difference in apoA-I values between PAD subjects and non-PAD controls (z-value: 1.98, P = 0.047).

Conclusions

Our meta-analysis suggests that PAD subjects exhibit increased apoB and reduced apoA-I levels, accompanied by an increased apoB/apoA-I ratio as compared with non-PAD controls.
Taking the next steps to implement polygenic risk scoring for improved risk stratification and primary prevention of coronary artery disease
Authors: Figtree Gemma Alexandra , Vernon Stephen Thomas , Nicholls Stephen James
Published: January 2021

Coronary artery disease (CAD) remains the leading cause of death worldwide. The role of hypertension, cholesterol, diabetes mellitus, and smoking in driving disease has been well recognized at a population level and has been the target of primary prevention strategies for over 50 years with substantial impact. However, in many cases, these factors alone do not provide enough precision at the individual level to allow physicians and patients to take appropriate preventive measures and many patients continue to suffer acute coronary syndromes in the absence of these risk factors. Recent advances in user-friendly chip designs, high speed throughput, and economic efficiency of genome-wide association studies complemented by advances in statistical analytical approaches have facilitated the rapid development of polygenic risk scores (PRSs). The latest PRSs combine data regarding hundreds of thousands of single-nucleotide polymorphisms to predict chronic diseases including CAD. Novel CAD PRSs are strong predictors of risk and may have application, in a complementary manner with existing risk prediction algorithms. However, there remain substantial controversies, and ultimately, we need to move forward from observational studies to prospectively and rigorously assess the potential impact if widespread implementation is to be aspired to. Consideration needs to be made of ethnicity, sex, as well as age, and risk estimate based on existing non-genomic algorithms. We provide an overview and commentary on the important advances in deriving and validating PRSs, as well as pragmatic considerations that will be required for implementation of the new knowledge into clinical practice.
Sex steroids and markers of micro- and macrovascular damage among women and men from the general population
Authors: Aribas E , Ahmadizar F , Mutlu U , Ikram M K , Bos D , Laven J S E , Klaver C C W , Ikram M A , Roeters van Lennep J L , Kavousi M
Published: January 2021

Aims

The contribution of sex hormones to micro- and macrovascular damage might differ among women and men. In particular, little is known about the association between sex hormones and small vessel disease. Therefore, we examined the association of total oestradiol, total testosterone, free-androgen index (FAI), dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), and androstenedione levels with micro- and macrovascular diseases.

Methods and results

This cross-sectional study included 2950 women and 2495 men from the population-based Rotterdam Study. As proxy of microvascular damage, we measured diameters of retinal arterioles and venules. Markers of macrovascular damage included carotid intima-media thickness and carotid plaque, coronary artery calcification (CAC), and peripheral artery disease. Linear and logistic regression models were used and adjusted for age, cardiovascular risk factors, and years since menopause. Associations with microvasculature: In women, total testosterone [mean difference per 1-unit increase in natural-log transformed total testosterone (95% confidence interval, CI): 2.59 (0.08–5.09)] and androstenedione [4.88 (1.82–7.95)] and in men DHEAS [2.80 (0.23–5.37)] and androstenedione [5.83 (2.19–9.46)] were associated with larger venular caliber. Associations with markers of large vessel disease: In women, higher total testosterone [−0.29 (−0.56 to −0.03)], FAI [−0.33 (−0.56 to −0.10)], and androstenedione levels [−0.33 (−0.64 to −0.02)] were associated with lower CAC burden and FAI [odds ratio (95% CI): 0.82 (0.71–0.94)] was associated with lower prevalence of plaque.

Conclusion

A more androgenic profile was associated with more microvascular damage in both women and men. Among women, however, higher androgen levels were also associated with less macrovascular damage. Our findings suggest that androgens might have distinct effects on the vasculature, depending on the vascular bed and stages of the atherosclerosis process.
Underperformance of clinical risk scores in identifying imaging-based high cardiovascular risk in psoriasis: results from two observational cohorts
Authors: Gonzalez-Cantero Alvaro , Reddy Aarthi S , Dey Amit K , Gonzalez-Cantero Jorge , Munger Eric , Rodante Justin , Sanchez-Moya Ana I , Perez-Hortet Cristina , Gonzalez-Calvin Jorge L , Playford Martin P , Barderas María G , Ballester Asunción , Jimenez-Gomez Natalia , Jaén Pedro , Chen Marcus Y , Gelfand Joel M , Mehta Nehal N
Published: January 2021

Aims

We aimed to evaluate whether traditional risk scores [short-term, ‘psoriasis-modified’ (multiplied by 1.5) and lifetime] were able to capture high cardiovascular disease (CVD) risk as defined by the presence of atherosclerotic plaques in coronary, femoral, or carotid arteries in psoriasis.

Methods and results

We used two prospectives obseravational cohorts. European cohort: femoral and carotid atherosclerotic plaques were evaluated by ultrasound in 73 psoriasis patients. Lifetime CVD risk (LTCVR) was evaluated with QRISK-LT; short-term CVD risk was evaluated with SCORE and psoriasis-modified SCORE. American cohort: 165 patients underwent coronary computed tomography angiography to assess presence of coronary plaques. LTCVR was evaluated with atherosclerotic cardiovascular disease (ASCVD-LT) lifetime; short-term CVD risk was evaluated with ASCVD and psoriasis-modified ASCVD. European cohort: subclinical atherosclerosis was present in 51% of patients. QRISK-LT identified 64% of patients with atherosclerosis missing a high proportion (35%) with atheroma plaque (P < 0.05). The percentage of patients with atherosclerosis identified by QRISK-LT was significantly higher than those detected by SCORE (0%) and modified SCORE (10%). American cohort: subclinical atherosclerosis was present in 54% of patients. ASCVD-LT captured 54% of patients with coronary plaques missing a high proportion (46%) with coronary plaque (P < 0.05). The percentage of patients with atheroma plaques detected with ASCVD and modified ASCVD were only 20% and 45%, respectively.

Conclusions

Application of lifetime, short-term and ‘psoriasis-modified’ risk scores did not accurately capture psoriasis patients at high CVD risk.
Cardiovascular risk factors during cancer treatment. Prevalence and prognostic relevance: insights from the CARDIOTOX registry
Authors: Caro-Codón Juan , López-Fernández Teresa , Álvarez-Ortega Carlos , Zamora Auñón Pilar , Rodríguez Isabel Rodríguez , Gómez Prieto Pilar , Buño Soto Antonio , Canales Albendea Miguel , Albaladejo Ainara , Mediavilla Guiomar , Feliu Batlle Jaime , Rodríguez Fraga Olaia , Martínez Monzonis Amparo , González-Costello José , Serrano Antolín José María , Cadenas Chamorro Rosalía , González-Juanatey José R , López-Sendón José ,   the CARDIOTOX registry investigators
Published: January 2021

Aims

The actual usefulness of cardiovascular (CV) risk factor assessment in the prognostic evaluation of cancer patients treated with cardiotoxic treatment remains largely unknown. Prospective multicentre study in patients scheduled to receive anticancer therapy related with moderate/high cardiotoxic risk.

Methods and results

A total of 1324 patients underwent follow-up in a dedicated cardio-oncology clinic from April 2012 to October 2017. Special care was given to the identification and control of CV risk factors. Clinical data, blood samples, and echocardiographic parameters were prospectively collected according to protocol, at baseline before cancer therapy and then at 3 weeks, 3 months, 6 months, 1 year, 1.5 years, and 2 years after initiation of cancer therapy. At baseline, 893 patients (67.4%) presented at least one risk factor, with a significant number of patients newly diagnosed during follow-up. Individual risk factors were not related with worse prognosis during a 2-year follow-up. However, a higher Systemic Coronary Risk Estimation (SCORE) was significantly associated with higher rates of severe cardiotoxicity (CTox) and all-cause mortality [hazard ratio (HR) 1.79 (95% confidence interval, CI 1.16–2.76) for SCORE 5–9 and HR 4.90 (95% CI 2.44–9.82) for SCORE ≥10 when compared with patients with lower SCORE (0–4)].

Conclusions

This large cohort of patients treated with a potentially cardiotoxic regimen showed a significant prevalence of CV risk factors at baseline and significant incidence during follow-up. Baseline CV risk assessment using SCORE predicted severe CTox and all-cause mortality. Therefore, its use should be considered in the evaluation of cancer patients.
The influence of aircraft noise exposure on the systemic and renal haemodynamics
Authors: Bosch Agnes , Kannenkeril Dennis , Jung Susanne , Striepe Kristina , Karg Marina V , Ott Christian , Schmieder Roland E
Published: January 2021

Aims

Epidemiological studies found a link between aircraft noise exposure and increased incidence of arterial hypertension and cardiovascular disease, but the underlying pathophysiological mechanisms are not fully understood. Clinical studies have shown that mental stress affects the systemic and renal haemodynamic, but no such study was performed with noise exposure as stress factor. We analysed systemic and renal effects of 25 min standardized aircraft noise in a sham controlled clinical study including 80 healthy men and 34 male patients with hypertension.

Methods and results

Systemic haemodynamic parameters were measured using electrocardiography and impedance cardiography. The renal haemodynamic was assessed using steady state input clearance with infusion of para-aminohippuric acid and inulin for glomerular filtration rate and renal plasma flow, respectively. In the systemic circulation of hypertensive patients, there was an increase in total peripheral resistance (TPR) (1420 ± 387 vs. 1640 ± 516 dyn·s·cm−5, P = 0.001) and a decrease in cardiac index (CI) (2.9 ± 0.8 vs. 2.6 ± 0.8 L/(min·m2, P < 0.001) 25 min after the start of noise exposure, which was not present during sham procedure (P = 0.10, P = 0.86). In healthy individuals a procedure induced increase in TPR and decrease in CI was present after noise (TPR: 995 ± 239 vs. 1106 ± 308 dyn·s·cm−5, P = 0.001, CI: 3.6 ± 0.7 vs. 3.3 ± 0.9 L/(min·m2, P < 0.001) and sham application (TPR: P = 0.002, CI: P < 0.001). However, in healthy individuals changes in TPR (P = 0.450) and CI (P = 0.605) from baseline until 25 min after the start of the intervention did not differ between noise and sham exposure. In the renal circulation of hypertensive patients and healthy individuals the response did not differ between noise and sham procedure.

Conclusions

In hypertensive but not healthy men we observed a systemic vasoconstrictive response after aircraft noise exposure accompanied by a decrease in CI. No significant changes were observed in the renal circulation. Our results suggest that male hypertensive patients are more susceptible for noise-induced changes of vascular resistance in the systemic circulation.
Weight change and the incidence of heart failure in the Korean population: data from the National Health Insurance Health checkup 2005–2015
Authors: Kim Yang-Hyun , Han Kyung-do , Jung Jin-Hyung , Yoo Soon Jib , Lee Seong-Su , Lee Won-Young , Park Hye-Soon , Kim Seon Mee ,   the Taskforce Team of the Obesity Fact Sheet of the Korean Society for the Study of Obesity
Published: January 2021

Aims

Heart failure (HF) is associated with obesity, but the relationship between weight change and HF is inconsistent. We examined the relationship between weight change and the incidence of HF in the Korean population.

Design

Retrospective cohort study design.

Methods and results

A total of 11 210 394 subjects (6 198 542 men and 5 011 852 women) >20 years of age were enrolled in this study. Weight change over 4 years divided into seven categories from weight loss ≥15% to weight gain ≥15%. The hazard ratios (HRs) and 95% confidence intervals for the incidence of HF were analysed. The HR of HF showed a slightly reverse J-shaped curve by increasing weight change in total and >15% weight loss shows the highest HR (HR 1.647) followed by −15 to −10% weight loss (HR = 1.444). When using normal body mass index with stable weight group as a reference, HR of HF decreased as weight increased in underweight subjects and weight gain ≥15% in obesity Stage II showed the highest HR (HR = 2.97). Sustained weight for 4 years in the underweight and obesity Stages I and II increased the incidence of HF (HR = 1.402, 1.092, and 1.566, respectively).

Conclusion

Both weight loss and weight gain increased HR for HF. Sustained weight in the obesity or underweight categories increased the incidence of HF.
Association of periodic fasting lifestyles with survival and incident major adverse cardiovascular events in patients undergoing cardiac catheterization
Authors: Bartholomew Ciera L , Muhlestein Joseph B , Anderson Jeffrey L , May Heidi T , Knowlton Kirk U , Bair Tami L , Le Viet T , Bailey Bruce W , Horne Benjamin D
Published: January 2021

Aims

Animal models repeatedly show fasting increases longevity. Human data, though, are limited to anecdotal claims. This study evaluated the association of routine fasting with survival and, secondarily, with incident major adverse cardiovascular events.

Methods and results

Cardiac catheterization patients enrolled in the Intermountain INSPIRE longitudinal cohort (n = 2785) during 2013–2015 were followed through March 2019. A fasting survey was completed in n = 2025 (73%) of this cohort and 1957 were included in the final data analysis after 68 participants were removed (24 for data issues and 44 for fasting less than 5 years). Self-reported routine fasting behaviour, years of participation in fasting, and other fasting characteristics were surveyed. Mortality was the primary outcome and incident myocardial infarction (MI), stroke, and heart failure (HF) were secondary. Routine fasters (n = 389, mean age 64 ± 14 years, 34% female) averaged 42 ± 18 years of routine fasting (minimum 5 years). Non-fasters (n = 1568, aged 63 ± 14 years, 36% female) included never fasters (n = 1120 with 0 years of fasting) and previous fasters (n = 448 who averaged 32 ± 21 years of prior fasting but had stopped prior to enrolment). Routine fasters had greater survival vs. non-fasters [adjusted hazard ratio (HR) = 0.54, 95% confidence interval (CI) = 0.36–0.80; P = 0.002] and lower incidence of HF (adjusted HR = 0.31, CI = 0.12–0.78; P = 0.013), but not MI or stroke after adjustment.

Conclusions

Routine fasting followed during two-thirds of the lifespan was associated with higher survival after cardiac catheterization. This may in part be explained by an association of routine fasting with a lower incidence of HF.

Clinical study registration

The Intermountain INSPIRE registry https://clinicaltrials.gov/, NCT02450006.
Antithrombotic therapy in patients undergoing transcatheter aortic valve replacement: the complexity of the elderly
Authors: Bencivenga Leonardo , Sepe Immacolata , Palaia Maria Emiliana , Komici Klara , Corbi Graziamaria , Puzone Brunella , Arcopinto Michele , Cittadini Antonio , Ferrara Nicola , Femminella Grazia Daniela , Rengo Giuseppe
Published: January 2021

Along with epidemiologic transitions of the global population, the burden of aortic stenosis (AS) is rapidly increasing and transcatheter aortic valve replacement (TAVR) has quickly spread; indeed, it is nowadays also employed in treating patients with AS at intermediate operative risk. Nonetheless, the less invasive interventional strategy still carries relevant issues concerning post-procedural optimal antithrombotic strategy, given the current indications provided by guidelines are not completely supported by evidence-based data. Geriatric patients suffer from high bleeding and thromboembolic risks, whose balance is particularly subtle due to the presence of concomitant conditions, such as atrial fibrillation and chronic kidney disease, that make the post-TAVR antithrombotic management particularly insidious. This scenario is further complicated by the lack of specific evidence regarding the ‘real-life’ complex conditions typical of the geriatric syndromes, thus, the management of such a heterogeneous population, ranging from healthy ageing to frailty, is far from being defined. The aim of the present review is to summarize the critical points and the most updated evidence regarding the post-TAVR antithrombotic approach in the geriatric population, with a specific focus on the most frequent clinical settings.
Long-term secondary cardiovascular prevention programme in patients subjected to coronary artery bypass surgery
Authors: Werba José Pablo , Bonomi Alice , Giroli Monica , Amato Manuela , Vigo Lorenzo , Agrifoglio Marco , Alamanni Francesco , Cavallotti Laura , Kassem Samer , Naliato Moreno , Parolari Alessandro , Penza Eleonora , Polvani Gianluca , Pompilio Giulio , Porqueddu Massimo , Roberto Maurizio , Salis Stefano , Zanobini Marco , Amato Mauro , Baldassarre Damiano , Veglia Fabrizio , Tremoli Elena
Published: January 2021

Aims

Patients with coronary heart disease (CHD) are at very high risk of recurrent events. A strategy to reduce excess risk might be to deliver structured secondary prevention programmes, but their efficacy has been mostly evaluated in the short term and in experimental settings. This is a retrospective case–control study aimed at assessing, in the real world, the efficacy of a secondary prevention programme in reducing long-term coronary event recurrences after coronary artery bypass surgery (CABG).

Methods and results

Programme participants (henceforth ‘cases’) were men and women aged <75 years subjected to CABG between 2002 and 2014, living within 100 km of the hospital. Key programme actions included optimization of treatments according to the most updated European preventive guidelines, surveillance of therapy adherence, and customized lifestyle counselling. Controls were analogous patients not involved in the programme because living farther than 100 km away, matched 1:1 with cases for gender, age at CABG, and year of CABG. Both groups (n = 1248) underwent usual periodic cardiology follow-up at our centre. Data on symptomatic or silent CHD recurrences were obtained from the hospital electronic health records. Cox analysis (adjusted for baseline differences between groups) shows that programme participation was associated with a significantly lower incidence throughout 5 years post-CABG of symptomatic [hazard ratio (95% confidence interval): 0.59 (0.38–0.94)] and silent [0.53 (0.31–0.89)] coronary recurrences.

Conclusion

In a real-world setting, taking part in a structured longstanding secondary prevention programme, in addition to usual cardiology care, meaningfully lowers the risk of coronary recurrences.
Lipoprotein(a) and cardiovascular disease: prediction, attributable risk fraction, and estimating benefits from novel interventions
Authors: Welsh Paul , Welsh Claire , Celis-Morales Carlos A , Brown Rosemary , Ho Frederick K , Ferguson Lyn D , Mark Patrick B , Lewsey James , Gray Stuart R , Lyall Donald M , Gill Jason M R , Pell Jill P , de Lemos James A , Willeit Peter , Sattar Naveed
Published: January 2021

Aims 

To investigate the population attributable fraction due to elevated lipoprotein (a) (Lp(a)) and the utility of measuring Lp(a) in cardiovascular disease (CVD) risk prediction.

Methods and results 

In 413 734 participants from UK Biobank, associations of serum Lp(a) with composite fatal/non-fatal CVD (n = 10 066 events), fatal CVD (n = 3247), coronary heart disease (CHD; n = 18 292), peripheral vascular disease (PVD; n = 2716), and aortic stenosis (n = 901) were compared using Cox models. Median Lp(a) was 19.7 nmol/L (interquartile interval 7.6–75.3 nmol/L). About 20.8% had Lp(a) values >100 nmol/L; 9.2% had values >175 nmol/L. After adjustment for classical risk factors, 1 SD increment in log Lp(a) was associated with a hazard ratio for fatal/non-fatal CVD of 1.12 [95% confidence interval (CI) 1.10–1.15]. Similar associations were observed with fatal CVD, CHD, PVD, and aortic stenosis. Adding Lp(a) to a prediction model containing traditional CVD risk factors in a primary prevention group improved the C-index by +0.0017 (95% CI 0.0008–0.0026). In the whole cohort, Lp(a) above 100 nmol/L was associated with a population attributable fraction (PAF) of 5.8% (95% CI 4.9–6.7%), and for Lp(a) above 175 nmol/L the PAF was 3.0% (2.4–3.6%). Assuming causality and an achieved Lp(a) reduction of 80%, an ongoing trial to lower Lp(a) in patients with CVD and Lp(a) above 175 nmol/L may reduce CVD risk by 20.0% and CHD by 24.4%. Similar benefits were also modelled in the whole cohort, regardless of baseline CVD.

Conclusion 

Population screening for elevated Lp(a) may help to predict CVD and target Lp(a) lowering drugs, if such drugs prove efficacious, to those with markedly elevated levels.
A computerized decision support system did not improve personalization of exercise-based cardiac rehabilitation according to latest recommendations
Authors: Vromen Tom , Peek Niels B , Abu-Hanna Ameen , Kornaat Marion , Kemps Hareld M
Published: January 2021

Aims

Recent studies showed that exercise-based cardiac rehabilitation (ECR) programmes are often not personalized to individual patient characteristics according to latest recommendations. This study investigates whether a computerized decision support (CDS) system based on latest recommendations and guidelines can improve personalization of ECR prescriptions. Pseudo-randomized intervention study.

Methods and results

Among participating Dutch cardiac rehabilitation centres, ECR programme characteristics of consecutive patients were recorded during 1 year. CDS was used during a randomly assigned 4-month period within this year. Primary outcome was concordance to latest recommendations in three phases (before, during, and after CDS) for 12 ECR programme characteristics. Secondary outcome was variation in training characteristics. We recruited ten Dutch CR centres and enrolled 2258 patients to the study. Overall concordance of ECR prescriptions was 59.9% in Phase 1, 62.1% in Phase 2 (P = 0.82), and 59.9% in Phase 3 (P = 0.56). Concordance varied from 0.0% to 99.9% for the 12 ECR characteristics. There was significant between-centre variation for most training characteristics in Phases 1 and 2. In Phase 3, there was only a significant variation for aerobic and resistance training intensity (P = 0.01), aerobic training volume (P < 0.01), and the number of strengthening exercises but no longer for the other characteristics. Aerobic training volume was often below recommended (28.2%) and declined during the study.

Conclusion

CDS did not substantially improve concordance with ECR prescriptions. As aerobic training volume was often lower than recommended and reduced during the study, a lack of institutional resources might be an important barrier in personalizing ECR prescriptions.
Takeaway food, sugar-sweetened beverages and preclinical cardiometabolic phenotypes in children and adults
Authors: Saraf Shweta , Grobler Anneke , Liu Richard S , Liu Mengjiao , Wake Melissa , Olds Tim , Lycett Kate , Juonala Markus , Ranganathan Sarath , Burgner David , Kerr Jessica A
Published: January 2021

Aims

To investigate relationships between takeaway food and sugar-sweetened beverage (SSB) consumption with cardiometabolic phenotypes during childhood and mid-adulthood.

Method

Design: Cross-sectional Child Health CheckPoint within the national population-representative Longitudinal Study of Australian Children. Participants: 1838 children (mean age 11.5 years; 49.1% female) and 1846 adults (mean age 43.7 years; 87.6% female). Exposures: Self-reported takeaway food and SSB consumption (‘frequent’: ≥ weekly). Outcomes: Functional (pulse wave velocity (PWV), blood pressure (BP)) and structural (carotid intima-media thickness, retinal microvascular calibre) preclinical cardiovascular phenotypes; lipids (total cholesterol, low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides). Analysis: Linear regression (exposure: takeaway or SSB consumption, individually or together) adjusted for age, sex and socio-economic position; and mediation analysis for body mass index (BMI).

Results

Associations were small among children (standardized mean difference (SMD) ≤0.15). In adults, associations were stronger with functional, but not structural, cardiovascular phenotypes and lipids, particularly for frequent takeaway food consumption (e.g. PWV (0.20 m/s; 95% confidence interval (CI) 0.03 to 0.37); systolic (3.3 mmHg; 95% CI 1.3 to 5.3) and diastolic BP (1.4 mmHg; 95% CI 0.2 to 2.6); LDL (0.10 mmol/L; 95% CI 0.02 to 0.18); HDL (−0.14 mmol/L; 95% CI −0.19 to −0.10) and triglycerides (0.30 mmol/L; 95% CI 0.12 to 0.48)]. BMI mediated associations between takeaway food consumption and PWV, BP, HDL and TG (proportion of mediation 34% to 75%), while mediation effects were smaller for SSB consumption.

Conclusions

Frequent takeaway food consumption in adults was associated with adverse blood lipids and vascular function (mainly via BMI). Lack of strong associations in children highlights opportunities for prevention.
Sex-based approach for the clinical impact of polycythaemia on cardiovascular outcomes in the general population
Authors: Kim In-Soo , Lee Byoung Kwon , Yang Pil-Sung , Joung Boyoung , Kim Jong-Youn
Published: January 2021

Aims

Although the adverse cardiovascular effect of anaemia has been well described, the effect of polycythaemia on the cardiovascular outcomes of the general population remain unclear. The primary objective is to identify the association between polycythaemia and major adverse cardiovascular events (MACE), and the secondary objective is to identify the specific haemoglobin concentration more associated with an increased risk for MACE.

Methods and results

This was a retrospective cohort study, 451 107 subjects were enrolled who underwent national health examinations from the Korean National Sample Cohort. We estimated the risk of MACE, a composite of cardiovascular mortality, incident myocardial infarction (MI), and stroke according to haemoglobin-based four categories. During 3.8-year of follow-up, polycythaemia group showed higher MACE [hazard ratio (HR) = 1.27 (1.13–1.44) and HR = 1.76 (1.08–2.88); in men and women, respectively], incident MI [HR = 1.37 (1.05–1.79) and HR = 3.46 (1.06–14.00)], and incident ischaemic stroke [HR = 1.27 (1.10–1.46) and HR = 1.72 (1.02–2.91)] than normal haemoglobin group (P < 0.001 in all cases). In the normal haemoglobin and polycythaemia groups, a 1 g/dL increase in haemoglobin level was associated with increased risks of MACE [HR = 1.04 (1.01–1.07) and HR = 1.05 (1.01–1.10) in men and women, each P < 0.05]. To investigate the specific haemoglobin concentration related to greater MACE incidence, we analysed the sensitivity/specificity of different haemoglobin levels: ≥16.5 g/dL in men and ≥15.0 g/dL in women showed the highest Youden’s index (sensitivity + specificity − 1), with c-indices of 0.82 (0.81–0.83) and 0.83 (0.82–0.84), respectively.

Conclusion

Even in the Korean general population, polycythaemia was significantly associated with higher rates of MACE, incident MI, and incident ischaemic stroke. Especially, subjects with haemoglobin levels ≥15.0 g/dL in women and ≥16.5 g/dL among men were associated with increased risks of MACE.
Parental cardiovascular health predicts time to onset of cardiovascular disease in offspring
Authors: Muchira James M , Gona Philimon N , Mogos Mulubrhan F , Stuart-Shor Eileen , Leveille Suzanne G , Piano Mariann R , Hayman Laura L
Published: January 2021

Background

Cardiovascular disease (CVD) risk factors are transmitted from parents to children. We prospectively examined the association between parental cardiovascular health (CVH) and time to onset of CVD in the offspring.

Methods and results

The study consisted of a total of 5967 offspring–mother–father trios derived from the Framingham Heart Study. Cardiovascular health score was defined using the seven American Heart Association’s CVH metrics attained at ideal levels: poor (0–2), intermediate (3–4), and ideal CVH (5–7). Multivariable-adjusted Cox proportional hazards regression models, Kaplan–Meier plots, and Irwin’s restricted mean were used to examine the association and sex-specific differences between parental CVH and offspring’s CVD-free survival. In a total of 71 974 person-years of follow-up among the offspring, 718 incident CVD events occurred. The overall CVD incidence rate was 10 per 1000 person-years [95% confidence interval (CI) 9.3–10.7]. Offspring of mothers with ideal CVH lived 9 more years free of CVD than offspring of mothers with poor CVH (P < 0.001). Maternal poor CVH was associated with twice as high hazard of early onset of CVD compared with maternal ideal CVH (adjusted Hazard Ratio 2.09, 95% CI 1.50–2.92). No statistically significant association was observed in the hazards of CVD-free survival by paternal CVH categories.

Conclusions

We found that offspring of parents with ideal CVH had a greater CVD-free survival. Maternal CVH was a more robust predictor of offspring’s CVD-free survival than paternal CVH, underscoring the need for clinical and policy interventions that involve mothers to break the intergenerational cycle of CVD-related morbidity and mortality.