blood pressure

Blood pressure measurement techniques

Nathan Hinkle — Sat, 12 Sep 2026 05:00:00 +0000

Date Added:

September 12, 2026

Journal/Publication:

Canadian Family Physician/Le Medecin De Famille Canadien

Publisher:

College of Family Physicians of Canada

Publication Date:

September 1, 2026

Issue:

Volume:

Pages:

554

URL:

Blood pressure measurement techniques

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

doi: 10.46747/cfp.7209554

Keywords

blood pressure

measurements

accuracy

MeSH

Blood Pressure Monitoring

hypertension

blood pressure

RPR Commentary: Proper measurement technique is essential for accurate BP determination. James W. Mold, MD, MPH

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Do recommended blood pressure (BP) measurement techniques impact the accuracy of readings?

Cuff size, arm position, bladder distention, and leg crossing affect systolic BP (SBP) and diastolic BP (DBP) measurement accuracy (1 mm Hg lower to 20 mm Hg higher). Thin clothing does not impact readings. A 5-minute rest before measurement may give more accurate readings if SBP is 140 mm Hg or higher. Hypertension Canada recommendations are reasonable.

Author/s:

Tony Nickonchuk, Adrienne J. Lindblad, Danielle Perry, Scott Garrison

Diagnosis and Management of Resistant Hypertension: A Review

Megan George — Wed, 29 Apr 2026 21:23:10 +0000

Date Added:

April 29, 2026

Journal/Publication:

JAMA

Publication Date:

March 23, 2026

URL:

Diagnosis and Management of Resistant Hypertension: A Review

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2026.1221

Keywords

hypertension

drug therapy

Drug Resistance

Antihypertensive Agents

blood pressure

PMID (1):

41870448

MeSH

Antihypertensive Agents* / therapeutic use

blood pressure

Blood Pressure Monitoring

Ambulatory

drug resistance, bacterial

drug therapy

Combination

Hypertension* / complications

female

male

Humans

Hypertension* / drug therapy

Hypertension* / epidemiology

Hypertension* / therapy

Recommendations for the diagnosis and management of patients with resistant hypertension. James W. Mold, MD, MPH

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Importance: Hypertension, defined as office systolic blood pressure (SBP) 130 mm Hg or greater and/or diastolic blood pressure 80 mm Hg or greater, affects 43.9% of women and 49.5% of men in the US. Approximately 19.7% of patients treated for hypertension have apparent resistant hypertension (blood pressure ≥130/80 mm Hg) despite using 3 or more antihypertensive medications, preferably a renin-angiotensin system blocker, a calcium channel blocker, and a thiazide-type diuretic, at maximally tolerated doses.

Observations: Approximately 10% of patients treated for hypertension have true resistant hypertension confirmed with home or 24-hour ambulatory blood pressure monitoring to exclude white-coat hypertension (approximately 37.5% of apparent resistant hypertension) and after excluding medication nonadherence (approximately 50%) and secondary hypertension such as primary aldosteronism (approximately 5%-25%). Conditions associated with resistant hypertension include obesity, diabetes, chronic kidney disease, and sleep apnea. Resistant hypertension is associated with increased risk of cardiovascular death vs controlled blood pressure at 5 years to 10 years (absolute risk increase, 10.3% [95% CI, 8.7%-12.1%]). Lifestyle modifications for resistant hypertension include a low-sodium diet (<1500 mg/d), reducing or avoiding alcohol, 150 min/wk or more of aerobic exercise, and weight loss. Illicit drugs (eg, cocaine) and medications that increase blood pressure (eg, nonsteroid anti-inflammatory drugs, serotonin-norepinephrine reuptake inhibitors) should be avoided. Sleep apnea should be treated when diagnosis is confirmed. Pharmacologic optimization includes use of combination tablets of antihypertensives; intensifying diuretic therapy by using chlorthalidone; and sequential addition of antihypertensive medications using evidence-based algorithms. In a meta-analysis of 20 studies (9 randomized clinical trials [RCTs] and 11 observational studies [331 participants]), use of antihypertensive therapies that combine 2 to 3 medications into a single formulation reduced SBP by -3.99 mm Hg (95% CI, -7.92 to -0.07) vs equivalent doses given separately. For patients with apparent or true resistant hypertension who have an estimated glomerular filtration rate of 45 mL/min/1.73 m2 or greater and a serum potassium level of 4.5 mmol/L or less, adding spironolactone (25-50 mg/d) compared with placebo lowers office SBP by -13.3 mm Hg (95% CI, -17.89 to -8.72 [4 RCTs]) and 24-hour ambulatory SBP by -8.46 mm Hg (95% CI, -12.54 to -4.38 [2 RCTs]) in a network meta-analysis of 24 RCTs (3485 patients with resistant hypertension). A meta-analysis of 10 RCTs (2478 participants) reported that compared with a sham procedure, catheter-based renal denervation, which disrupts the sympathetic nerves in the renal artery walls, decreased 24-hour ambulatory SBP by -4.4 mm Hg (95% CI, -6.1 to -2.7) and office SBP by -6.6 mm Hg (95% CI, -9.7 to -3.6).

Conclusions and relevance: True resistant hypertension affects 10% of patients treated for hypertension and is diagnosed after excluding white-coat hypertension, medication nonadherence, and secondary hypertension such as primary aldosteronism. First-line treatment includes lifestyle modifications, diuretic therapy with chlorthalidone, and combination tablets of antihypertensives. Spironolactone and renal denervation decrease blood pressure in patients with true resistant hypertension.

Author/s:

Michel Azizi, Wanpen Vongpatanasin, Naomi D. L. Fisher

Management of Orthostatic Hypotension: A Review

Megan George — Thu, 09 Apr 2026 23:15:35 +0000

Date Added:

April 9, 2026

Journal/Publication:

JAMA

Publication Date:

April 6, 2026

URL:

Management of Orthostatic Hypotension: A Review

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jamainternmed.2026.0284

Keywords

PMID (1):

41941194

MeSH

hypotension

Hypotension, Orthostatic

hypertension

Dizziness

blood pressure

A review and advice about how to help patients with orthostatic hypotension. James W. Mold, MD, MPH

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Importance: Orthostatic hypotension is a common but underrecognized condition that increases with age and is associated with a lower quality of life, falls, and increased mortality. The frequent coexistence of supine hypertension and postprandial hypotension with orthostatic hypotension makes it a challenging condition to manage.

Observations: Testing for orthostatic hypotension should be done in patients with orthostatic symptoms (eg, vision changes and dizziness that occur only when upright and improve when seated or lying down), as well as asymptomatic patients in high-risk groups such as adults with frailty who are older than 70 years, individuals with neurodegenerative or autonomic disorders, and patients with unexplained falls. Patients with orthostatic hypotension should be screened for postprandial hypotension and supine hypertension to inform the treatment approach. Nonpharmacological strategies, such as medication review, increased salt and fluid intake, compression garments, and behavioral modifications, serve as fundamental approaches to treat orthostatic hypotension. Midodrine and droxidopa are the only US Food and Drug Administration-approved medications for orthostatic hypotension, but other medications (eg, fludrocortisone, atomoxetine, pyridostigmine) are used off label as part of an individualized treatment plan. Treatment targets in orthostatic hypotension are focused not on blood pressure measurements but on symptom relief and fall prevention.

Conclusions and relevance: All patients with orthostatic symptoms-along with other select patient groups-should be evaluated for orthostatic hypotension. Nonpharmacological treatments are first line, and medication decisions should be tailored based on clinical presentation and relevant comorbidities.

Author/s:

David Moloney, Ayman Youssef, Luis E. Okamoto

Diagnosis and Management of Resistant Hypertension: A Review

Megan George — Tue, 24 Mar 2026 16:14:03 +0000

Date Added:

March 24, 2026

Journal/Publication:

JAMA

Publication Date:

March 23, 2026

URL:

Diagnosis and Management of Resistant Hypertension: A Review

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2026.1221

Keywords

blood pressure

Antihypertensive Agents

Resistant Hypertension

hypertension

Hyperaldosteronism

Anti-Inflammatory Agents

PMID (1):

41870448

MeSH

Blood Pressure Monitoring

Ambulatory

blood pressure

antihypertensive agents

renin-angiotensin system

resistant hypertension

hypertension

White Coat Hypertension

Hyperaldosteronism

Anti-Inflammatory Agents

A review of the evaluation and management of patients with resistant hypertension. James W. Mold, MD, MPH

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Author/s:

Michel Azizi, Wanpen Vongpatanasin, Naomi D L Fisher, Felix Mahfoud, Laurence Amar, Ajay J Kirtane

Management of Hypertension in Adults

Megan George — Tue, 24 Mar 2026 16:08:23 +0000

Date Added:

March 24, 2026

Journal/Publication:

JAMA

Publication Date:

March 23, 2026

URL:

Management of Hypertension in Adults

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2026.1132

Keywords

hypertension

primary aldosteronism

blood pressure

Hypokalemia

PMID (1):

41870440

MeSH

Hypertension, Pulmonary

Guidelines for management of patients with hypertension from the American College of Cardiology and the American Heart Association. James W. Mold, MD, MPH

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Hypertension is the leading modifiable risk factor worldwide for ASCVD, and approximately half of US adults have hypertension.1 Uncontrolled BP contributes to heart failure, stroke, atrial fibrillation, and sudden cardiac death and is associated with development of kidney failure and dementia.2 This guideline was designed to provide clinicians with a risk stratification approach to managing BP. This synopsis highlights key guideline recommendations.

Author/s:

Amber E Johnson, Christopher D Jackson, Jason T Alexander

IgA Nephropathy in Adults: A Review

Megan George — Wed, 04 Mar 2026 18:10:22 +0000

Date Added:

March 4, 2026

Journal/Publication:

JAMA

Publication Date:

January 26, 2026

URL:

IgA Nephropathy in Adults: A Review

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

doi:10.1001/jama.2025.25020

Keywords

Antigen-Antibody Complex

IgA Nephropathy

Renal Insufficiency

Angiotensin Receptor Antagonists

renin-angiotensin system

MeSH

Glomerulonephritis

IGA

Antigen-Antibody Complex

Inflammation

Scarring

renal insufficiency

Angiotensin Receptor Antagonists

renin-angiotensin system

blood pressure

Adults

Humans

A comprehensive review of what we know about IgA nephropathy. James W. Mold, MD, MPH

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Importance IgA nephropathy (IgAN) is a chronic kidney disease involving deposition of IgA-containing immune complexes in the glomerulus, causing glomerular inflammation and scarring. It is the most common immune-mediated glomerular disease worldwide, and affects an estimated 198 887 to 208 184 persons in the US. Up to 50% of patients with IgAN develop kidney failure within 10 years of diagnosis.

Observations IgAN typically presents with nephritic syndrome and usually occurs in younger adults, with a mean age at diagnosis of 34 to 45 years. Incidence is highest in East Asia. Approximately 60% of cases are detected incidentally with hematuria or proteinuria on urinalysis. Up to 30% of patients present with episodic visible hematuria, often concomitantly with an upper respiratory or gastrointestinal tract infection (synpharyngitic hematuria). Less common presentations include nephrotic syndrome (<5%) and rapidly progressive glomerulonephritis (<5%). When IgAN is suspected (due to hematuria, proteinuria, or reduced kidney function), initial workup should include quantification of proteinuria and assessment for other causes of nephritic syndrome (eg, lupus nephritis). Adults with suspected IgAN and proteinuria greater than or equal to 0.5 g per day should undergo kidney biopsy. The diagnosis of primary IgAN is based on presence of IgA-dominant immune deposits in the glomerular mesangium after excluding other causes of this histologic appearance, ie, IgA vasculitis, IgA-dominant infection-related glomerulonephritis, and secondary IgAN from diseases such as cirrhosis, inflammatory bowel disease, celiac disease, infection (eg, viral hepatitis), and autoimmune diseases (eg, axial spondyloarthritis). Based on the Kidney Disease: Improving Global Outcomes 2025 clinical practice guideline for the management of IgAN, treatment for patients with proteinuria greater than 0.5 g per day includes behavioral modifications (eg, dietary sodium <2 g/d, smoking cessation, weight control, exercise), antihypertensive medications for goal blood pressure less than 120/70 mm Hg, and therapies to reduce the formation of IgA-containing immune complexes (eg, targeted-release budesonide), decrease glomerular injury (eg, systemic glucocorticoids, iptacopan), and manage existing IgAN-induced nephron loss (eg, renin-angiotensin system inhibitor or dual endothelin angiotensin receptor antagonist [eg, sparsentan] alone or in combination with a sodium-glucose cotransporter 2 inhibitor).

Conclusions and Relevance IgAN is the leading cause of immune-mediated glomerular disease worldwide. Patients with suspected IgAN and proteinuria greater than or equal to 0.5 g per day should undergo kidney biopsy to confirm the diagnosis. Treatment of IgAN includes behavioral modifications, blood pressure management, and therapies to decrease formation of IgA-containing immune complexes (eg, targeted-release budesonide), reduce immune complex–mediated glomerular injury (eg, systemic glucocorticoids, iptacopan), and manage IgAN-induced nephron loss (eg, renin-angiotensin system inhibitor, dual endothelin angiotensin receptor antagonist, and sodium-glucose cotransporter 2 inhibitor).

Author/s:

Sinead Stoneman, Jia Wei Teh, Michelle Marie O’Shaughnessy

Hypertension and alcohol: a cross-sectional study comparing PEth with AUDIT and AUDIT-C in primary care

Megan George — Mon, 16 Feb 2026 17:36:14 +0000

Date Added:

February 16, 2026

Journal/Publication:

Family Practice

Publication Date:

February 1, 2026

URL:

Hypertension and alcohol: a cross-sectional study comparing PEth with AUDIT and AUDIT-C in primary care

Type:

Clinical Research Results

Format:

Article

DOI (1):

10.1093/fampra/cmaf097

Keywords

alcohol use disorder

cardiovascular disorders

PMID (1):

41511884

MeSH

Alcohol Drinking* / epidemiology

Antihypertensive Agents / therapeutic use

lycerophospholipids* / blood

Hypertension* / drug therapy

Hypertension* / epidemiology

Alcoholism* / diagnosis

primary health care

The results of this study suggest that patients with poorly controlled BP should be further evaluated for alcohol use disorders even if the brief screening questions are negative. James W. Mold, MD, MPH

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Background: This cross-sectional study aimed to describe proportions of patients with indications of alcohol consumption using phosphatidylethanol (PEth), the Alcohol Use Disorders Identification Test (AUDIT), and its consumption-focused version (AUDIT-C), in relation to blood pressure (BP) control, overall and by sex.

Methods: A total of 270 hypertensive primary care patients (ICD-10: I10.9) were stratified into BP control groups: controlled (<140/90 mmHg), uncontrolled (≥140/90 mmHg), and apparent treatment-resistant hypertension (aTRH; ≥140/90 mmHg with ≥3 antihypertensive drugs). A randomized sample from each stratum was invited, baseline data were collected. Alcohol consumption using predefined categories for PEth and AUDIT, and hazardous use (PEth ≥ 0.122 µmol/L; AUDIT ≥ 8; AUDIT-C ≥ 5 for men, ≥4 for women), were analyzed in relation to BP control groups.

Results: Mean age was 67 ± 11 years; 42% were women. PEth indicated high and regular alcohol consumption in 6.4% of controlled, 5.3% of uncontrolled, and 19.2% of aTRH patients (controlled vs. aTRH, P = .027; uncontrolled vs. aTRH, P = .013). AUDIT showed no significant differences in hazardous use between BP groups (P = .865). AUDIT-C identified slightly higher proportions of hazardous use than PEth, across BP groups and sexes. No significant differences were found between BP groups for hazardous use by PEth (P = .339) or AUDIT-C (P = .150).

Conclusions: PEth revealed significantly higher alcohol use in the aTRH group, undetected by AUDIT. AUDIT-C and PEth identified more hazardous use than AUDIT, suggesting their potential to prompt alcohol-related discussions and support evidence-based hypertension care. PEth correlated more strongly with AUDIT-C than with AUDIT.

Clinical trial registration: Retrospectively registered in Clinical Trials, SLSO2022-0143, 2022-12-10.

Keywords: alcohol use disorder; cardiovascular disorders (hypertension/DVT/atherosclerosis); hypertension (high blood pressure); prevention; primary care; screening.

Author/s:

Åsa Thurfjell, Maria Hagströmer, Charlotte Ivarsson, Anders Norrman, Johanna Adami, Lena Lundh, Jan Hasselström

Efficacy and Safety of GLP-1 RAs in Children and Adolescents With Obesity or Type 2 Diabetes: A Systematic Review and Meta-Analysis

Megan George — Tue, 16 Sep 2025 13:46:37 +0000

Date Added:

September 16, 2025

Journal/Publication:

JAMA Pediatrics

Publication Date:

September 15, 2025

URL:

Efficacy and Safety of GLP-1 RAs in Children and Adolescents With Obesity or Type 2 Diabetes: A Systematic Review and Meta-Analysis

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jamapediatrics.2025.3243

Keywords

diabetes

Diabetes and Endocrinology

PMID (1):

40952752

MeSH

diabetes mellitus, type 2

Glycated Hemoglobin

overweight

Glucagon-Like Peptide-1 Receptor Agonists

glucagon-like peptide 1

Prediabetic State

blood pressure

pediatric obesity

Digestive System Diseases

A review of what we know about the use of GLP-1 RAs in children and adolescents. James W. Mold, MD, MPH

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Importance Obesity affects 1 in 5 children and adolescents, increasing the risk of type 2 diabetes (T2D). Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are among the few pharmacotherapy options available for this population, necessitating a comprehensive evaluation of efficacy and safety.

Objective To assess the efficacy and safety of GLP-1 RAs in children and adolescents (<18 years) with obesity, prediabetes, or T2D.

Data Sources A systematic search was conducted in PubMed, Embase, and the Cochrane Central Register of Controlled Trials (CENTRAL) for randomized clinical trials (RCTs) published from inception until February 28, 2025. Data analysis was completed from January 2025 to April 2025.

Study Selection RCTs comparing GLP-1 RAs to placebo in children and adolescents with obesity, overweight, prediabetes, or T2D with reported safety and efficacy data were included.

Data Extraction and Synthesis Two reviewers independently extracted data on sample size, population, interventions, follow-up, and outcomes. Risk of bias was assessed using version 2 of the Cochrane risk of bias tool (RoB2). Efficacy outcomes (except lipids) were analyzed as estimated treatment differences, lipids as estimated treatment ratios, and safety via rate ratios. A random-effects inverse variance model was used for all outcomes.

Main Outcomes and Measures The primary efficacy outcomes were change in hemoglobin A1c (HbA1c) (in percentage points), fasting glucose (in milligrams per deciliter), body weight (in kilograms), body mass index (BMI, calculated as weight in kilograms divided by height in meters squared), BMI z scores or percentiles, BMI standard deviation score (SDS), lipid outcomes, and blood pressure. Exploratory efficacy outcomes included obstructive sleep apnea and metabolic dysfunction–associated steatohepatitis or metabolic dysfunction–associated steatotic liver disease. Safety outcomes included gastrointestinal adverse effects (GI AEs), infections, hepatobiliary disorders, suicidal ideation or behaviors, depression, hypoglycemia, and adverse event discontinuations.

Results A total of 18 RCTs (11 in obesity, 6 in T2D, and 1 in prediabetes) with 1402 participants (838 GLP-1 RA users and 564 placebo) were included (mean [range] age, 13.7 [6-17] years; 831 female participants (59.3%); median [IQR] treatment duration, 0.51 [0.25-1.00] years). GLP-1 RAs significantly reduced HbA1c (−0.44%; 95% CI, −0.68% to −0.21%), fasting glucose (−9.92 mg/dL; 95% CI, −16.20 to −3.64), body weight (−3.02 kg; 95% CI, −4.98 to −1.06), BMI (−1.45; 95% CI, −2.40 to −0.49), BMI SDS (−0.20; 95% CI, −0.36 to −0.05), BMI percentile (−7.24%; 95% CI, −12.97% to −1.51%), and systolic blood pressure (−2.73 mm Hg; 95% CI, −4.04 to −1.43) and increased GI AE (log[rate ratio] [RR], 0.75). Other AEs, including suicidal ideation or behaviors, showed no significant differences.

Conclusions and Relevance In this systematic review and meta-analysis of 18 trials, GLP-1 RAs significantly improved glycemic, weight, and cardiometabolic outcomes in children and adolescents with T2D or obesity. Available data over a relatively short follow-up suggested suicidal ideation or behaviors were not significantly different, although GI AEs warrant attention in long-term management.

Author/s:

Pareeta Kotecha, Wenxi Huang, Ya-Yun Yeh

Arm Position and Blood Pressure Readings: The ARMS Crossover Randomized Clinical Trial

Alex Haga — Wed, 23 Oct 2024 15:12:08 +0000

Date Added:

October 23, 2024

Journal/Publication:

JAMA Internal Medicine

Publication Date:

October 7, 2024

URL:

Arm Position and Blood Pressure Readings: The ARMS Crossover Randomized Clinical Trial

Type:

Clinical Research Results

Format:

Article

DOI (1):

10.1001/jamainternmed.2024.5213

Keywords

arm position

blood pressure

measurements

PMID (1):

39373998

MeSH

Arm position has a significant effect on BP measurements. James W. Mold, MD, MPH

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Importance: Guidelines for blood pressure (BP) measurement recommend arm support on a desk with the midcuff positioned at heart level. Still, nonstandard positions are used in clinical practice (eg, with arm resting on the lap or unsupported on the side).

Objective: To determine the effect of different arm positions on BP readings.

Design, setting, and participants: This crossover randomized clinical trial recruited adults between the ages of 18 and 80 years in Baltimore, Maryland, from August 9, 2022, to June 1, 2023.

Intervention: Participants were randomly assigned to sets of triplicate BP measurements with the arm positioned in 3 ways: (1) supported on a desk (desk 1; reference), (2) hand supported on lap (lap), and (3) arm unsupported at the side (side). To account for intrinsic BP variability, all participants underwent a fourth set of BP measurements with the arm supported on a desk (desk 2).

Main outcomes and measures: The primary outcomes were the difference in differences in mean systolic BP (SBP) and diastolic BP (DBP) between the reference BP (desk 1) and the 2 arm support positions (lap and side): (lap or side - desk 1) - (desk 2 - desk 1). Results were also stratified by hypertensive status, age, obesity status, and access to health care within the past year.

Results: The trial enrolled 133 participants (mean [SD] age, 57 [17] years; 70 [53%] female); 48 participants (36%) had SBP of 130 mm Hg or higher, and 55 participants (41%) had a body mass index (calculated as weight in kilograms divided by height in meters squared) of 30 or higher. Lap and side positions resulted in statistically significant higher BP readings than desk positions, with the difference in differences as follows: lap, SBP Δ 3.9 (95% CI, 2.5-5.2) mm Hg and DBP Δ 4.0 (95% CI, 3.1-5.0) mm Hg; and side, SBP Δ 6.5 (95% CI, 5.1-7.9) mm Hg and DBP Δ 4.4 (95% CI, 3.4-5.4) mm Hg. The patterns were generally consistent across subgroups.

Conclusion and relevance: This crossover randomized clinical trial showed that commonly used arm positions (lap or side) resulted in substantial overestimation of BP readings and may lead to misdiagnosis and overestimation of hypertension.

Author/s:

Hairong Liu, Di Zhao, Ahmed Sabit

Effects of salt substitutes on clinical outcomes: a systematic review and meta-analysis

Aubrey Delammermore — Thu, 08 Sep 2022 05:00:00 +0000

Date Added:

September 8, 2022

Journal/Publication:

Heart

Publisher:

BMJ Publishing Group

Publication Date:

August 9, 2022

Pages:

1-8

URL:

Effects of salt substitutes on clinical outcomes: a systematic review and meta-analysis

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1136/heartjnl-2022-321332

Keywords

PMID (1):

35945000

MeSH

Randomized Controlled Trials as Topic

Odds Ratio

body mass index

Salt substitutes, when compared to use of regular salt, reduce BP, CV mortality, and all-cause mortality.

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Objectives The Salt Substitute and Stroke Study (SSaSS) recently reported blood pressure-mediated benefits of a potassium-enriched salt substitute on cardiovascular outcomes and death. This study assessed the effects of salt substitutes on a breadth of outcomes to quantify the consistency of the findings and understand the likely generalisability of the SSaSS results.

Methods We searched PubMed, Embase and the Cochrane Library up to 31 August 2021. Parallel group, step-wedge or cluster randomised controlled trials reporting the effect of salt substitute on blood pressure or clinical outcomes were included. Meta-analyses and metaregressions were used to define the consistency of findings across trials, geographies and patient groups.

Results There were 21 trials and 31 949 participants included, with 19 reporting effects on blood pressure and 5 reporting effects on clinical outcomes. Overall reduction of systolic blood pressure (SBP) was −4.61 mm Hg (95% CI −6.07 to −3.14) and of diastolic blood pressure (DBP) was −1.61 mm Hg (95% CI −2.42 to −0.79). Reductions in blood pressure appeared to be consistent across geographical regions and population subgroups defined by age, sex, history of hypertension, body mass index, baseline blood pressure, baseline 24-hour urinary sodium and baseline 24-hour urinary potassium (all p homogeneity >0.05). Metaregression showed that each 10% lower proportion of sodium choloride in the salt substitute was associated with a −1.53 mm Hg (95% CI −3.02 to −0.03, p=0.045) greater reduction in SBP and a −0.95 mm Hg (95% CI −1.78 to −0.12, p=0.025) greater reduction in DBP. There were clear protective effects of salt substitute on total mortality (risk ratio (RR) 0.89, 95% CI 0.85 to 0.94), cardiovascular mortality (RR 0.87, 95% CI 0. 81 to 0.94) and cardiovascular events (RR 0.89, 95% CI 0.85 to 0.94).

Conclusions The beneficial effects of salt substitutes on blood pressure across geographies and populations were consistent. Blood pressure-mediated protective effects on clinical outcomes are likely to be generalisable across population subgroups and to countries worldwide.

Author/s:

Yin, X., Rodgers, A., Perkovic, A., Huang, L., Li, K., Yu, J., Wu, Y., Wu, J. H. Y., Marklund, M., Huffman, M. D., Miranda, J. J., Di Tanna, G. L., Labarthe, D., Elliott, P., Tian, M., Neal, B.

Milestones in Heart Failure: How Far We Have Come and How Far We Have Left to Go

Saige Blanchard — Mon, 03 Jan 2022 06:00:00 +0000

Date Added:

January 3, 2022

Journal/Publication:

Cureus Journal of Medical Science

Publication Date:

December 12, 2021

URL:

Milestones in Heart Failure: How Far We Have Come and How Far We Have Left to Go

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.7759/cureus.20359

Keywords

MeSH

Angiotensin Receptor Antagonists

heart failure

Disease Progression

A nice summary of what we currently know about the pharmacologic treatment of congestive heart failure. James W. Mold, MD, MPH

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Heart failure is a clinically complex syndrome that results due to the failure of the ventricles to function as pump and oxygenate end organs. The repercussions of inadequate perfusion are seen in the form of sympathetic overactivation and third spacing, leading to clinical signs of increased blood pressure, dyspnea, fatigue, palpitations, etc. This article provided a brief overview of the clinical syndrome of heart failure; its epidemiology, risk factors, symptoms, and staging; and the mechanisms involved in disease progression. This article also described several landmark trials in heart failure that tested the efficacy of first-line drugs such as beta-blockers, angiotensin receptor blockers, angiotensin-converting enzyme inhibitors, and the latest drugs in the field of heart failure: angiotensin receptor neprilysin inhibitors. Most studies described in this article were guideline-setting trials that revolutionized the practice of medicine and cardiology.

Author/s:

H., Kela, I., Kakarlala, C., Hassan, M., Belavadi, R., Gudigopuram, S. V. R., Raguthu, C., Modi, S., Sange, I.

Management of Blood Pressure in Patients With Chronic Kidney Disease Not Receiving Dialysis: Synopsis of the 2021 KDIGO Clinical Practice Guideline

Saige Blanchard — Wed, 23 Jun 2021 05:00:00 +0000

Date Added:

June 23, 2021

Journal/Publication:

Annals of Internal Medicine

Publisher:

American College of Physicians

Publication Date:

June 22, 2021

URL:

Management of Blood Pressure in Patients With Chronic Kidney Disease Not Receiving Dialysis: Synopsis of the 2021 KDIGO Clinical Practice Guideline

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.7326/M21-0834

Keywords

PMID (1):

34152826

MeSH

blood pressure

renal dialysis

Renal Replacement Therapy

referral and consultation

risk assessment

renal insufficiency, chronic

Eleven guideline recommendations for management of elevated BP in patients with CKD from the Kidney Disease: Improving Global Outcomes (KDIGO). James W. Mold, MD, MPH

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Description: The Kidney Disease: Improving Global Outcomes (KDIGO) 2021 clinical practice guideline for the management of blood pressure (BP) in patients with chronic kidney disease (CKD) not receiving dialysis is an update of the KDIGO 2012 guideline on the same topic and reflects new evidence on the risks and benefits of BP-lowering therapy among patients with CKD. It is intended to support shared decision making by health care professionals working with patients with CKD worldwide. This article is a synopsis of the full guideline.

Methods: The KDIGO leadership commissioned 2 co-chairs to convene an international Work Group of researchers and clinicians. After a Controversies Conference in September 2017, the Work Group defined the scope of the evidence review, which was undertaken by an evidence review team between October 2017 and April 2020. Evidence reviews were done according to the Cochrane Handbook. The GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach was used to guide the development of the recommendations and rate the strength and quality of the evidence. Practice points were included to provide guidance when evidence was insufficient to make a graded recommendation. The guideline was revised after public consultation between January and March 2020.

Recommendations: The updated guideline comprises 11 recommendations and 20 practice points. This synopsis summarizes key recommendations pertinent to the diagnosis and management of high BP in adults with CKD, excluding those receiving kidney replacement therapy. In particular, the synopsis focuses on recommendations for standardized BP measurement and a target systolic BP of less than 120 mm Hg, because these recommendations differ from some other guidelines.

Author/s:

Tomson, C. R. V., Cheung, A. K., Mann, J. F. E., Chang, T. I., Cushman, W. C., Furth, S. L., Hou, F. F., Knoll, G. A., Muntner, P., Pecoits-Filho, R., Tobe, S. W., Lytvyn, L, Craig, J. C., Tunnicliffe, D. J., Howell, M., Tonelli, M., Cheung, M., Earley, A., Ix, J. H., Sarnak, M. J.

Screening for Hypertension in Adults

Saige Blanchard — Wed, 05 May 2021 05:00:00 +0000

Date Added:

May 5, 2021

Journal/Publication:

Journal of the American Medical Association

Publisher:

U.S. Preventative Services Task Force

Publication Date:

April 27, 2021

Issue:

Volume:

325

Pages:

1650-1656

URL:

Screening for Hypertension in Adults

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Web Page

DOI (1):

10.1001/jama.2021.4987

Keywords

hypertension

heart failure

myocardial infarction

chronic kidney disease

MeSH

blood pressure

Mass Screening

hypertension

myocardial infarction

No surprise that the USPSTF recommends in-office screening for hypertension. What seems interesting is that they suggest getting confirmatory readings from outside the office before making the diagnosis. James W. Mold, MD, MPH

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IMPORTANCE Hypertension is a prevalent condition that affects approximately 45% of the adult US population and is the most commonly diagnosed condition at outpatient office visits. Hypertension is a major contributing risk factor for heart failure, myocardial infarction, stroke, and chronic kidney disease. OBJECTIVE To reaffirm its 2015 recommendation, the US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for hypertension in adults, the accuracy of office blood pressure measurement for initial screening, and the accuracy of various confirmatory blood pressure measurement methods. POPULATION Adults 18 years or older without known hypertension. EVIDENCE ASSESSMENT Using a reaffirmation deliberation process, the USPSTF concludes with high certainty that screening for hypertension in adults has substantial net benefit. RECOMMENDATION The USPSTF recommends screening for hypertension in adults 18 years or older with office blood pressure measurement. The USPSTF recommends obtaining blood pressure measurements outside of the clinical setting for diagnostic confirmation before starting treatment. (A recommendation)

Author/s:

U.S. Preventative Services Task Force

Diagnosis and Management of Transient Ischemic Attack and Acute Ischemic Stroke: A Review

Devin Evans — Fri, 19 Mar 2021 05:00:00 +0000

Date Added:

March 19, 2021

Journal/Publication:

Journal of the American Medical Association

Publication Date:

March 16, 2021

Issue:

Volume:

325

Pages:

1088-1098

URL:

Diagnosis and Management of Transient Ischemic Attack and Acute Ischemic Stroke: A Review

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1001/jama.2020.26867

Keywords

blood pressure

stroke

transient ischemic attack

Acute Ischemic Stroke

PMID (1):

33724327

MeSH

Tissue Plasminogen Activator

Platelet Aggregation Inhibitors

ischemic attack, transient

blood pressure

stroke

A non-systematic review of the diagnosis and management of patients with transient ischemic attack and acute stroke. James W. Mold, MD, MPH

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Importance: Stroke is the fifth leading cause of death and a leading cause of disability in the United States, affecting nearly 800 000 individuals annually.

Observations: Sudden neurologic dysfunction caused by focal brain ischemia with imaging evidence of acute infarction defines acute ischemic stroke (AIS), while an ischemic episode with neurologic deficits but without acute infarction defines transient ischemic attack (TIA). An estimated 7.5% to 17.4% of patients with TIA will have a stroke in the next 3 months. Patients presenting with nondisabling AIS or high-risk TIA (defined as a score ≥4 on the age, blood pressure, clinical symptoms, duration, diabetes [ABCD2] instrument; range, 0-7 [7 indicating worst stroke risk]), who do not have severe carotid stenosis or atrial fibrillation, should receive dual antiplatelet therapy with aspirin and clopidigrel within 24 hours of presentation. Subsequently, combined aspirin and clopidigrel for 3 weeks followed by single antiplatelet therapy reduces stroke risk from 7.8% to 5.2% (hazard ratio, 0.66 [95% CI, 0.56-0.77]). Patients with symptomatic carotid stenosis should receive carotid revascularization and single antiplatelet therapy, and those with atrial fibrillation should receive anticoagulation. In patients presenting with AIS and disabling deficits interfering with activities of daily living, intravenous alteplase improves the likelihood of minimal or no disability by 39% with intravenous recombinant tissue plasminogen activator (IV rtPA) vs 26% with placebo (odds ratio [OR], 1.6 [95% CI, 1.1-2.6]) when administered within 3 hours of presentation and by 35.3% with IV rtPA vs 30.1% with placebo (OR, 1.3 [95% CI, 1.1-1.5]) when administered within 3 to 4.5 hours of presentation. Patients with disabling AIS due to anterior circulation large-vessel occlusions are more likely to be functionally independent when treated with mechanical thrombectomy within 6 hours of presentation vs medical therapy alone (46.0% vs 26.5%; OR, 2.49 [95% CI, 1.76-3.53]) or when treated within 6 to 24 hours after symptom onset if they have a large ratio of ischemic to infarcted tissue on brain magnetic resonance diffusion or computed tomography perfusion imaging (modified Rankin Scale score 0-2: 53% vs 18%; OR, 4.92 [95% CI, 2.87-8.44]).

Conclusions and relevance: Dual antiplatelet therapy initiated within 24 hours of symptom onset and continued for 3 weeks reduces stroke risk in select patients with high-risk TIA and minor stroke. For select patients with disabling AIS, thrombolysis within 4.5 hours and mechanical thrombectomy within 24 hours after symptom onset improves functional outcomes.

Author/s:

Mendelson, Scott J., Prabhakaran, Shyam

Reduction in Saturated Fat Intake for Cardiovascular Disease

Brian Desmarais — Fri, 12 Jun 2020 19:42:30 +0000

Date Added:

June 12, 2020

Journal/Publication:

The Cochrane Database of Systematic Reviews

Publication Date:

May 19, 2020

URL:

Reduction in Saturated Fat Intake for Cardiovascular Disease

Type:

Meta-analyses, Reviews, and Guidelines

Format:

Article

DOI (1):

10.1002/14651858.CD011737.pub2.

MeSH

cardiovascular diseases

6-dimethylaminodibenzopyriodonium citrate

body mass index

Dietary replacement of saturated fatty acids with polyunsaturated fatty acids or carbohydrates for at least 2 years, appears to reduce the incidence of adverse cardiovascular events. James W. Mold, MD, MPH

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Abstract

Background: Reducing saturated fat reduces serum cholesterol, but effects on other intermediate outcomes may be less clear. Additionally, it is unclear whether the energy from saturated fats eliminated from the diet are more helpfully replaced by polyunsaturated fats, monounsaturated fats, carbohydrate or protein.

Objectives: To assess the effect of reducing saturated fat intake and replacing it with carbohydrate (CHO), polyunsaturated (PUFA), monounsaturated fat (MUFA) and/or protein on mortality and cardiovascular morbidity, using all available randomised clinical trials.

Search methods: We updated our searches of the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (Ovid) and Embase (Ovid) on 15 October 2019, and searched Clinicaltrials.gov and WHO International Clinical Trials Registry Platform (ICTRP) on 17 October 2019.

Selection criteria: Included trials fulfilled the following criteria: 1) randomised; 2) intention to reduce saturated fat intake OR intention to alter dietary fats and achieving a reduction in saturated fat; 3) compared with higher saturated fat intake or usual diet; 4) not multifactorial; 5) in adult humans with or without cardiovascular disease (but not acutely ill, pregnant or breastfeeding); 6) intervention duration at least 24 months; 7) mortality or cardiovascular morbidity data available.

Data collection and analysis: Two review authors independently assessed inclusion, extracted study data and assessed risk of bias. We performed random-effects meta-analyses, meta-regression, subgrouping, sensitivity analyses, funnel plots and GRADE assessment.

Main results: We included 15 randomised controlled trials (RCTs) (16 comparisons, ~59,000 participants), that used a variety of interventions from providing all food to advice on reducing saturated fat. The included long-term trials suggested that reducing dietary saturated fat reduced the risk of combined cardiovascular events by 21% (risk ratio (RR) 0.79; 95% confidence interval (CI) 0.66 to 0.93, 11 trials, 53,300 participants of whom 8% had a cardiovascular event, I² = 65%, GRADE moderate-quality evidence). Meta-regression suggested that greater reductions in saturated fat (reflected in greater reductions in serum cholesterol) resulted in greater reductions in risk of CVD events, explaining most heterogeneity between trials. The number needed to treat for an additional beneficial outcome (NNTB) was 56 in primary prevention trials, so 56 people need to reduce their saturated fat intake for ~four years for one person to avoid experiencing a CVD event. In secondary prevention trials, the NNTB was 32. Subgrouping did not suggest significant differences between replacement of saturated fat calories with polyunsaturated fat or carbohydrate, and data on replacement with monounsaturated fat and protein was very limited. We found little or no effect of reducing saturated fat on all-cause mortality (RR 0.96; 95% CI 0.90 to 1.03; 11 trials, 55,858 participants) or cardiovascular mortality (RR 0.95; 95% CI 0.80 to 1.12, 10 trials, 53,421 participants), both with GRADE moderate-quality evidence. There was little or no effect of reducing saturated fats on non-fatal myocardial infarction (RR 0.97, 95% CI 0.87 to 1.07) or CHD mortality (RR 0.97, 95% CI 0.82 to 1.16, both low-quality evidence), but effects on total (fatal or non-fatal) myocardial infarction, stroke and CHD events (fatal or non-fatal) were all unclear as the evidence was of very low quality. There was little or no effect on cancer mortality, cancer diagnoses, diabetes diagnosis, HDL cholesterol, serum triglycerides or blood pressure, and small reductions in weight, serum total cholesterol, LDL cholesterol and BMI. There was no evidence of harmful effects of reducing saturated fat intakes.

Authors' conclusions: The findings of this updated review suggest that reducing saturated fat intake for at least two years causes a potentially important reduction in combined cardiovascular events. Replacing the energy from saturated fat with polyunsaturated fat or carbohydrate appear to be useful strategies, while effects of replacement with monounsaturated fat are unclear. The reduction in combined cardiovascular events resulting from reducing saturated fat did not alter by study duration, sex or baseline level of cardiovascular risk, but greater reduction in saturated fat caused greater reductions in cardiovascular events.

Trial registration: ClinicalTrials.gov NCT00000611 NCT02062424 NCT00692536 NCT01954472 NCT01005498 NCT01634841 NCT03354377.

Author/s:

Hopper, L., Martin, N., Jimoh, O.F., Kirk, C., Foster, E., Abdelhamid, A.