There is increasing interest in unattended automated office blood pressure (OBP) measurement, which gives lower blood pressure values than the conventional auscultatory OBP. Whether unattended automated OBP differs from standardized attended automated OBP performed using the same device and measurement protocol remains uncertain. A systematic review and meta‐analysis of studies (aggregate data) comparing unattended vs attended automated OBP using the same device and measurement protocol (conditions, number of measurements, visits) was performed. Ten eligible studies (n = 1004, weighted age 60.8 ± 4.2 [SD] years, 55% males) were analyzed. Unattended OBP (pooled systolic/diastolic 133.9 [95% CI: 129.7, 138]/80.6 [95% CI: 77, 84.2] mm Hg) did not differ from attended OBP (135.3 [95% CI: 130.9, 139.6]/81 [95% CI: 77.6, 84.3] mm Hg); pooled systolic OBP difference −1.3, 95% CI: −4.3, 1.7 mm Hg and diastolic −0.4, 95% CI: −1.2, 0.3 mm Hg. Nine of ten studies achieved high quality score and no publication bias was identified. Meta‐regression analysis did not reveal any effect of age, gender, or attended systolic OBP on the unattended‐attended systolic OBP difference (P = NS for all). However, there was a trend toward higher attended than unattended OBP at higher OBP levels. These data suggest that, when the same device and measurement protocol are used, attended automated OBP provides similar blood pressure values as unattended automated OBP. Although unattended automated OBP is theoretically advantageous as it ensures that standardized conditions and measurement protocol are used, attended automated OBP, if carefully performed, appears to be a reasonable and practical alternative.
22 October 2018 in International Journal of Endocrinology
Background. Current evidence indicates that statins increase the risk of new onset diabetes mellitus (NOD) and also deteriorate the glycemic control in patients with known diabetes mellitus (DM) after high-dose statin therapy. Aims. The aim of this review was to explore the effect of atorvastatin in causing NOD or deteriorating glycemic control in patients with DM. Methods. Two independent reviewers conducted the literature search, through PubMed database searching for articles published in English until April 2015, and only primary studies were included. Results. Of the 919 articles identified in our original search, 33 met the criteria for this review encompassing 1,951,113 participants. Twenty articles examined dysregulation of DM due to atorvastatin. Half of them showed that there was no significant change in glycemic control in patients treated with atorvastatin. Other studies showed that fasting plasma glucose and HbA1c levels were increased by atorvastatin. Thirteen articles examined if atorvastatin causes NOD. The majority of these articles showed that patients who used atorvastatin had a higher dose-dependent risk of developing NOD. Conclusion. This systematic review suggests that there is an association between atorvastatin treatment and NOD. Moreover, it showed that atorvastatin in high dose causes worsening of the glycemic control in patients with DM.
31 May 2023 in Kidney Research and Clinical Practice
Hemoperfusion has been considered a promising adjuvant treatment for chronic diseases and some acute states when specific removal of pathogenic factors from the bloodstream is desired. Over the years, advances in adsorption materials (e.g., new synthetic polymers, biomimetic coating, and matrixes with novel structures) have renewed scientific interest and expanded the potential therapeutic indications of hemoperfusion. There is growing evidence to suggest a prominent place for hemoperfusion as an adjuvant treatment in the setting of sepsis or severe coronavirus disease 2019 and as a therapeutic option for chronic complications associated with accumulated uremic toxins in patients with end-stage renal disease. This literature review will describe the principles, therapeutic perspectives, and the emerging role of hemoperfusion as a complementary therapy for patients with kidney disease.
This study aimed to investigate a novel technique for nighttime blood pressure evaluation using a home blood pressure (HBP) monitor in children and adolescents, in terms of association with ambulatory blood pressure (ABP) and preclinical organ damage. Children and adolescents (aged 6–18 years) referred for elevated blood pressure were evaluated with ABP (24 hours) and HBP monitoring during daytime (7 days, duplicate morning and evening measurements) and nighttime (automated asleep measurements for 3 nights with 3 hourly measurements/night; Microlife WatchBP Home N). Preclinical organ damage was assessed by echocardiographic left ventricular mass index, carotid intima-media thickness, carotid distensibility coefficient, and carotid-femoral pulse wave velocity. Ninety-one individuals were analyzed (mean age 13.3±2.8 years; 54 men; 17 with elevated ABP). There was a close association between daytime (awake) ABP and HBP (r=0.81/0.77, systolic/diastolic) and between nighttime (asleep) values (r=0.78/0.60) (all P <0.05). Daytime HBP was slightly lower than daytime ABP (difference, −2.0±6.5/−0.9±5.1 mm Hg, systolic/diastolic, P <0.01/NS), whereas nighttime HBP was slightly higher than nighttime ABP (2.6±7.2/2.2±6.1 mm Hg, P <0.01 for both). Nighttime systolic ABP and HBP were correlated with left ventricular mass index (r=0.37 and 0.29, respectively), carotid intima-media thickness (0.45, 0.47), carotid distensibility coefficient (−0.22, −0.20), and carotid-femoral pulse wave velocity (0.47, 0.53) ( P =NS for comparisons between methods). The agreement between nighttime HBP and ABP in identifying individuals with nighttime hypertension (≥95th percentile for nighttime ABP) was 82% (κ=0.49; P <0.01) and nondippers 57% (κ=0.19; P =0.03). In conclusion, in children and adolescents, nighttime HBP monitoring is feasible, is closely associated with nighttime ABP and similarly associated with preclinical organ damage.
Background/Objectives: Glomerulopathy is a term used to describe a broad spectrum of renal diseases, characterized by dysfunction of glomerular filtration barrier, especially of podocytes. Several podocyte-associated proteins have been found and proved their usefulness as urine markers of podocyte dysfunction. Two of them are nephrin (NEP) and prodocalyxin (PDC). This study aims to evaluate the association of podocyte damage, as it is demonstrated via the concentrations of urinary proteins, with clinical and histological data from patients with several types of glomerulonephritis. Methods: We measured urine levels of two podocyte-specific markers, NEP and PDC (corrected for urine creatinine levels), in patients with a wide range of glomerulopathies. Serum and urine parameters as well as histological parameters from renal biopsy were recorded. Results: In total, data from 37 patients with glomerulonephritis and 5 healthy controls were analyzed. PDC and NEP concentrations correlated between them and with serum creatinine levels (p = 0.001 and p = 0.013 respectively), and with histological lesions associated with chronicity index of renal cortex, such as severe interstitial fibrosis, severe tubular atrophy and hyalinosis (for PDC/NEP, all p < 0.05). In addition, the PDC and NEP demonstrated statistically significant correlations with interstitial inflammation (p = 0.018/p = 0.028). Regarding electron microscopy evaluation, PDC levels were correlated with distinct characteristics, such as fibrils and global podocyte foot process fusion, whereas the NEP/CR ratio was uniquely significantly associated with podocyte fusion only in non-immune-complex-mediated glomerulonephritis (p = 0.02). Among the other clinical and histological parameters included in our study, a strong correlation between proteinuria >3 g/24 h and diffuse fusion of podocyte foot processes (p = 0.016) was identified. Conclusions: Podocalyxin and nephrin concentrations in urine are markers of podocyte dysfunction, and in our study, they were associated both with serum creatinine and histological chronicity indices.
Lifestyle and dietary modifications are unanimously suggested as the initial step to treat hypertension in the general population and in patients with chronic kidney disease (CKD). Limiting sodium intake constitutes the cornerstone of dietary interventions, but augmenting dietary potassium intake has also been associated with a significant blood pressure (BP)-lowering effect. Although there may be a consensus about restraining the daily sodium intake to <2 g per day, the target for optimal potassium intake is vague. In hypertensive patients with CKD, the desired amount of potassium in the diet remains a controversial issue, as evidence from studies concerning the effect on CKD progression is contradictory. Hence, medical societies and food authorities worldwide do not share a joint recommendation. Other dietary components, including calcium, magnesium, protein, phosphorus, zinc, and alcohol intake may play a role in BP control, but the evidence in the CKD population so far is inconclusive. Further studies are needed to establish solid evidence about the safety and efficacy of dietary interventions, particularly in CKD patients, the majority of whom suffer from hypertension. The purpose of this review is to summarize the existing recommendations and evidence concerning dietary interventions in hypertensives with CKD, with a primary focus on sodium and potassium intake. Additionally, we briefly address other dietary components that may play a role in BP regulation or kidney function.