Most Read Articles
26 Jun 2020

Achieving standard of care targets, such as reduced levels of low-density lipoprotein cholesterol and glycated haemoglobin, improves outcomes in coronary heart disease patients, a new study has found.

Pearl Toh, 19 Jan 2018
Blood pressure (BP) control can be best achieved with a multilevel, multicomponent approach involving team-based care with physician- and non-physician-led interventions, as well as patient-level strategies, according to findings of a meta-analysis.
Dr. Joseph Delano Fule Robles, 24 Jul 2018

Functional foods benefit the body beyond its nutritional effects, with studies showing that they can improve general state of health and reduce the risk of diseases.

29 Mar 2020
Targeting a low-density lipoprotein cholesterol level <70 mg/dL following an ischaemic stroke of atherosclerotic origin helps to avoid one in four subsequent major vascular events without increasing the risk of intracranial haemorrhage over about 5 years of follow-up, according to data from the Treat Stroke to Target trial.

Breathing cleaner air indoors promotes healthy blood pressure levels

20 Jun 2020

Using an air filtration system facilitates improved air quality around the house by reducing indoor exposures to particulate matter, which, in turn, exerts a favourable effect on systolic blood pressure (SBP), a study has found.

Researchers conducted a systematic review of randomized controlled trials evaluating the effects of using personal air cleaners (PACs), including high-efficiency particulate air filters and electrostatic precipitators, as opposed to sham filtration. Outcomes included PM2.5 exposure and SBP.

Ten studies involving a total of 604 participants met the inclusion criteria. The PM2.5 concentrations at baseline were categorized using the WHO criteria. Two studies reported low air pollution exposure levels (35 μg/m3), while one study was classified as indeterminate as PM2.5 was not quantified.

Median study duration was 9 days in nine studies, while the remaining study lasted 12 months. In general, PAC use yielded an absolute reduction in PM2.5 of 20.9 μg/m3, which translated to a relative reduction of 55.9 percent.

Over a median follow-up of 13.5 days, PACs were associated with a significant reduction in mean SBP of around 4 mm Hg (−3.94 mm Hg; p=0.01) and a nonsignificant decrease in mean diastolic blood pressure (−0.95 mm Hg; p=0.32).

Subgroup analyses did not detect heterogeneity of effect by age, level of particulate exposure, or study duration.

Given the variation in study design, more studies are needed to validate the present data and better quantify the observed benefits for systolic BP associated with the use of personal air cleaners.

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Most Read Articles
26 Jun 2020

Achieving standard of care targets, such as reduced levels of low-density lipoprotein cholesterol and glycated haemoglobin, improves outcomes in coronary heart disease patients, a new study has found.

Pearl Toh, 19 Jan 2018
Blood pressure (BP) control can be best achieved with a multilevel, multicomponent approach involving team-based care with physician- and non-physician-led interventions, as well as patient-level strategies, according to findings of a meta-analysis.
Dr. Joseph Delano Fule Robles, 24 Jul 2018

Functional foods benefit the body beyond its nutritional effects, with studies showing that they can improve general state of health and reduce the risk of diseases.

29 Mar 2020
Targeting a low-density lipoprotein cholesterol level <70 mg/dL following an ischaemic stroke of atherosclerotic origin helps to avoid one in four subsequent major vascular events without increasing the risk of intracranial haemorrhage over about 5 years of follow-up, according to data from the Treat Stroke to Target trial.