AF leading cause of CV hospitalisation

Atrial fibrillation (AF), the irregular, rapid heart rate that can cause heart palpitations, fatigue, shortness of breath and death, has overtaken heart failure and heart attacks as the leading cause of cardiovascular (CV) hospitalisation, a South Australian study has found.

Researchers analysed data collected over two decades by the Australian Institute of Health and Welfare to establish the incidence and trends of common cardiovascular conditions between 1993 and 2013.

Published recently in the journal Heart, University of Adelaide lead researcher Celine Gallagher found atrial fibrillation had the highest incidence of principal diagnosis in 2013 ahead of heart attack and heart failure.

However, in 1993 it was heart failure followed by heart attack and atrial fibrillation that were the most common causes of cardiovascular hospitalisation.
“What our study showed is that over that time period hospitalisations for AF increased by 295 per cent,” Ms Gallagher said.

“That was compared to 73 per cent for heart attack and 39 per cent for heart failure.

Researchers from the University of Adelaide Centre for Heart Rhythm Disorders found that the rate per annum of AF hospitalisations began at about 15,000 in 1993 and grew at an annual rate of almost four per cent to reach 61,000 in 2013.

Ms Gallagher, a PhD candidate, said the escalating figures revealed a new healthcare epidemic.

“It’s much more common to hear about heart failure or to hear about heart attacks, but in fact atrial fibrillation is really our new epidemic,” she said.
“It’s not showing any sign of slowing down or going away.”

Ms Gallagher said the reasons for the rapid increase in AF hospitalisations were not clear from the data although she said the risk of the condition increased with the presence of other factors such as high blood pressure, obesity, diabetes and life expectancy, which were also on the rise in Australia.

The study found the number of hospitalisations for AF increased across all age groups from the under 50s through to the over 80s.

Beginning in June, the researchers will study the effectiveness of treating patients in a holistic outpatient management clinic as an alternative to hospitalisation.

This model would employ a team of healthcare professionals such as cardiologists, psychologists and dieticians to treat those with atrial fibrillation on a regular basis.

Ms Gallagher said the research group believe that by managing patient’s conditions better itcan reduce the risk of people going to hospital.

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