Most Read Articles
Pearl Toh, 6 days ago
Every-two-month injections of the long-acting cabotegravir + rilpivirine were noninferior to once-monthly injections for virologic suppression at 48 weeks in people living with HIV*, according to the ATLAS-2M** study presented at CROI 2020 — thus providing a potential option with more convenient dosing.
Stephen Padilla, 19 Mar 2020
The assumption that children are less vulnerable to the coronavirus disease 2019 (COVID-19) compared to adults is not quite true and may even be dangerous, suggests a recent study.
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Exercise capacity varies by sex in aortic stenosis patients

25 Mar 2020

Exercise capacity and its determinants differ between men and women with aortic stenosis, a recent study has found.

Through echocardiography and an exercise treadmill test (ETT), researchers assessed the exercise capacity of 316 patients with moderate or severe aortic stenosis. Ultrasound measurements included left ventricular (LV) wall thickness, chamber dimensions, stroke volume and ejection fraction.

Of the participants, 212 were men (mean age, 66±12 years) and 104 were women (mean age, 65±12 years). The latter had significantly higher resting heart rates at baseline, though both sexes reached comparable peak heart rate values. An early rapid rise in heart rate (RR-HR) occurred significantly more commonly in women (p=0.024).

In terms of exercise capacity, men were able to walk for a significantly longer time than women (10.4±4.3 vs 8.2±4.2 minutes; p<0.001) and achieved significantly higher metabolic equivalents (METs; 9.2±4.5 vs 7.6±4.3; p<0.001). A METs target of >10 was set and was satisfied by significantly more men than women (46 percent vs 29 percent; p=0.003).

In both sexes, RR-HR was a strong determinant of METs. Age and body mass index were predictive of METs only in men, while the global LV load was a strong determinant in women.

In multivariate analysis, the failure to reach 10 METs led to a more than sixfold increase in the risk of all-cause mortality in the overall sample (hazard ratio [HR], 6.21, 95 percent confidence interval [CI], 1.64–23.59; p=0.007). The same was true for men (HR, 5.53, 95 percent CI, 1.07–28.74; p=0.042), but the equivalent analysis was impossible for women due to a low number of events.

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Most Read Articles
Pearl Toh, 6 days ago
Every-two-month injections of the long-acting cabotegravir + rilpivirine were noninferior to once-monthly injections for virologic suppression at 48 weeks in people living with HIV*, according to the ATLAS-2M** study presented at CROI 2020 — thus providing a potential option with more convenient dosing.
Stephen Padilla, 19 Mar 2020
The assumption that children are less vulnerable to the coronavirus disease 2019 (COVID-19) compared to adults is not quite true and may even be dangerous, suggests a recent study.
22 Mar 2020
Sustained use of lopinavir-combined regimen appears to confer benefits among patients with the novel coronavirus disease (COVID-19), with improvement possibly indicated by increasing eosinophils, suggests a recent study.
24 Mar 2020
COVID-19 is a novel disease, with no existing immunity. The virus can be transmitted from person to person, quickly and exponentially. Here’s what we can do to slow down the spread, if not contain the outbreak.