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ShareOct. 25, 2011 — A Heart and Stroke Foundation study has found that women under age 55 fare worse than their male counterparts following a heart attack -- and their health status declines more than that of their male counterparts after one month.
The AMI55 study found that women between the ages of 20 and 55 had significantly worse physical limitations, more recurrences of chest pain, and worse quality of life than men one month after a heart attack -- and, compared to their baseline scores, declined in the areas of physical limitations and recurrences of chest pain.Among men, only physical limitations worsened from baseline to one month.
"While the high prevalence of traditional cardiac risk factors like diabetes, smoking, and high blood pressure contribute, they do not fully explain the poorer outcome in women," says Dr. Karin Humphries, Heart and Stroke Foundation Professor in Women's Cardiovascular Health at UBC. "This is why our study focuses on exploring non-traditional risk factors such as depression, anxiety, and social support."
Dr. Humphries attributes the slower recovery of women in part to prevalent social and cultural standards that typically place women in this age group in the role of primary caregiver.
"These women are likely not getting the support they need to recover from a heart attack," she says. "Women are less likely to attend cardiac rehabilitation than their male counterparts even when they are referred. We need to help women overcome their barriers to this essential part of their recovery."
Explanations for the difference in outcomes, she says, may be that women are presenting to hospital later, are less likely to believe they're having a heart attack, are more likely to put off seeking treatment and often ignore or under-report their symptoms. Additionally, they are less aggressively investigated for heart disease.
She adds that outcomes in younger women could likely be improved by increased awareness of risk factors and of heart attack symptoms.
The study looked at 286 patients 55 years of age or younger, including 75 females, from five B.C. hospitals. Researchers collected baseline data when patients arrived following a heart attack, and followed up on demographic, clinical, and psychosocial characteristics at one, six, and 12 months.
In B.C. alone, more than 1,000 adults under age 55 are admitted to hospital each year following a heart attack. Of these, 25 per cent are women.
"Our findings show that there is still a lot of room for improvement," says co-researcher Mona Izadnegahdar, a PhD candidate in epidemiology at the UBC School of Population and Public Health. "We can improve these odds by increasing awareness of warning signs and symptoms of heart attack, recognizing and managing cardiac risk factors, as well as knowing about and accessing cardiac resources such as rehabilitation programs."
The researchers also found in the same group of patients that, while chest pain was the most common heart attack symptom in both men and women, the women suffered a higher severity of chest pain. They also had a wider range of other pain symptoms than men, including neck and throat pain, and left arm and shoulder pain.
"This research is consistent with other studies suggesting that women suffer worse quality of life with a diagnosis of heart disease," says Heart and Stroke Foundation spokesperson Dr. Beth Abramson. "Heart disease is a leading cause of death of women in Canada. Being aware of the warning signs and acting on them quickly can save lives and improve health outcomes." She says that women and their family members should talk to their doctors, be aware of any symptoms, and understand that heart attacks can happen to them too.
Dr. Abramson encourages women find out how they can protect their heart health through the Foundation's The Heart Truth™ campaign (thehearttruth.ca), which educates women about identifying their risks and warning signs of heart disease and stroke, and shows them how to make lifestyle changes and take action to reduce their risk by as much as 80 per cent.
The warning signs of a heart attack -- for women and men − are:
- Chest discomfort (uncomfortable chest pressure, squeezing, fullness or pain, burning or heaviness)
- Discomfort in other areas of the upper body (neck, jaw, shoulder, arms, back)
- Shortness of breath
- Sweating
- Nausea
- Light-headedness
If you are experiencing any of these signs, call 9-1-1 or your local emergency number immediately.
The study was presented at the Canadian Cardiovascular Congress 2011, co-hosted by the Heart and Stroke Foundation and the Canadian Cardiovascular Society.
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The above story is reprinted from materials provided by Heart and Stroke Foundation of Canada.
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