The ongoing impact of obesity on childhood hypertension.

Obesity rates among children have been steadily rising over the past several decades. This epidemic has been accompanied by an increase in the prevalence of childhood hypertension, with children in low- and middle-income countries being affected to the same extent as children in high-income countries. This review will examine the trends in childhood blood pressure and the relationship between excess body weight and the development of hypertension. In addition, distinct mechanisms of obesity-related hypertension will be discussed. There will be an emphasis on recent studies conducted since the publication of new guidelines by the American Academy of Pediatrics in 2017 which resulted in the adoption of lower normative blood pressure cutoffs. The overall intent of this review is to provide the reader with an understanding of the ongoing impact, and complexities, of obesity-related hypertension.

Ambulatory isolated diastolic hypertension and risk of left ventricular hypertrophy in children with primary and secondary hypertension.

BACKGROUND: Pediatric blood pressure (BP) assessment and management is increasingly important. Uncontrolled systolic and combined hypertension leads to hypertension-mediated organ damage. The impact of isolated diastolic hypertension is less clearly understood. METHODS: We analyzed the prevalence of ambulatory isolated diastolic hypertension (IDH) in primary (PH) and secondary (SH) hypertension, and associations with BMI Z-score (BMIz) and left ventricular mass index adjusted to the 95th percentile (aLVMI) in a large, multicenter cohort of hypertensive children. Hypertensive children were divided and analyzed in three ambulatory hypertension subgroups: 24-h, daytime, and nighttime. Specifically, we sought to determine the prevalence of ambulatory 24-h, daytime, or nighttime IDH. RESULTS: Prevalence of IDH varied based on ambulatory phenotypes, ranging from 6 to 12%, and was highest in children with SH. Children with IDH tended to be more likely female and, in some cases, were leaner than those with isolated systolic hypertension (ISH). Despite previous pediatric studies suggesting no strong association between diastolic blood pressure and left ventricular hypertrophy (LVH), we observed that children with IDH were equally likely to have LVH and had comparable aLVMI to those with ISH and combined systolic-diastolic hypertension. CONCLUSIONS: In summary, ambulatory IDH appears to be a unique phenotype with a female sex, and younger age predilection, but equal risk for LVH in children with either PH or SH.

Cardiovascular Risk in Patients With Glomerular Disease: A Narrative Review of the Epidemiology, Mechanisms, Management, and Patient Priorities.

Purpose of review: Cardiovascular (CV) disease is a major cause of morbidity and mortality for patients with glomerular disease. Despite the fact that mechanisms underpinning CV disease risk in this population are likely distinct from other forms of kidney disease, treatment and preventive strategies tend to be extrapolated from studies of patients with undifferentiated chronic kidney disease (CKD). There is an unmet need to delineate the pathophysiology of CV disease in patients with glomerular disease, establish unique risk factors, and identify novel therapeutic targets for disease prevention. The aims of this narrative review are to summarize the existing knowledge regarding the epidemiology, molecular mechanisms, and management of CV disease in patients with common glomerular disease, highlight the patient perspective, and propose specific areas for future study. Sources of information: The literature for this narrative review was accessed using common research search engines, including PubMed, PubMed Central, Medline, and Google Scholar. Information for the patient perspective section was collected through iterative discussions with a patient partner. Methods: We reviewed the epidemiology, molecular mechanisms of disease, management approaches, and the patient perspective in relation to CV disease in patients with glomerulopathies. Throughout, we have highlighted the current knowledge and have discussed future research approaches, both clinical and translational, while integrating the patient perspective. Key findings: Patients with glomerular disease have significant CV disease risk driven by multifactorial, molecular mechanisms originating from their glomerular disease but complicated by existing comorbidities, kidney disease, and medication side effects. The current approach to risk stratification and treatment relies heavily on existing data from CKD patients, but this may not always be appropriate given the unique pathophysiology and mechanisms associated with CV disease risk in patients with glomerular disease. We highlight the need for ongoing glomerular disease-focused studies aimed to better delineate CV disease risk, while integrating the patient perspective. Limitations: This is a narrative review and does not represent a comprehensive and systematic review of the literature.

Motif de la revue: Les maladies cardiovasculaires sont une cause majeure de morbidité et de mortalité chez les patients atteints d'une maladie glomérulaire. Bien que les mécanismes qui sous-tendent le risque de maladie cardiovasculaire dans cette population sont probablement distincts des autres formes de néphropathies, le traitement et les stratégies préventives ont tendance à être extrapolés à partir d'études portant sur des patients atteints d'insuffisance rénale chronique indifférenciée. Il existe ainsi un besoin de délimiter la physiopathologie des maladies cardiovasculaires chez les patients atteints d'une maladie glomérulaire, d'établir les facteurs de risque propres à la maladie glomérulaire et d'identifier de nouvelles cibles thérapeutiques pour la prévenir. Les objectifs de cette revue narrative sont de résumer les connaissances existantes concernant l'épidémiologie, les mécanismes moléculaires et la prise en charge des maladies cardiovasculaires chez les patients atteints d'une maladie glomérulaire commune, de mettre en évidence le point de vue des patients et de proposer des domaines précis pour de futures études. Sources de l'information: La documentation a été consultée par le biais des moteurs de recherche courants, notamment PubMed, PubMed Central, Medline et Google Scholar. Les points de vue des patients ont été recueillis au moyen de discussions itératives avec un patient partenaire. Méthodologie: Nous avons examiné l'épidémiologie et les mécanismes moléculaires de la maladie, les approches de prise en charge et la perspective des patients en lien avec les maladies cardiovasculaires chez les patients atteints d'une maladie glomérulaire. Nous avons fait état des connaissances actuelles et discuté des approches à envisager pour les recherches futures, tant cliniques que translationnelles, tout en intégrant la perspective du patient. Principales observations: Les patients atteints d'une maladie glomérulaire présentent un risque significatif de maladie cardiovasculaire associé à des mécanismes moléculaires multifactoriels provenant de la maladie glomérulaire elle-même. Ce risque est compliqué par les comorbidités existantes, la néphropathie et les effets secondaires des médicaments. L'approche actuelle de stratification du risque et de traitement repose en grande partie sur les données existantes pour les patients atteints d'insuffisance rénale chronique; cette approche pourrait ne pas toujours convenir, compte tenu de la physiopathologie unique et des mécanismes associés au risque de maladie cardiovasculaire chez les patients atteints d'une maladie glomérulaire. Nos résultats mettent en lumière le besoin d'études continues, axées sur les maladies glomérulaires, qui visent à mieux cerner le risque de maladies cardiovasculaires chez ces patients, tout en intègrant leur point de vue. Limites: Il s'agit d'une revue narrative; cette étude ne constitue pas une revue exhaustive et systématique de la littérature.