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Experiencing Pain After a Heart Attack May Predict Long-Term Survival

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People who have had a heart attack often report pain about a year later. Moderate or extreme pain after a heart attack – most commonly pain due to other health conditions – may help predict the likelihood of death over the next 8.5 years, according to new research published in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

In this study, participants who said they had extreme pain after a heart attack were more than twice as likely to die during the study period compared to those who reported no pain.

“Pain causes significant loss of function and may lead to disability, all of which contribute to major, global public health issues. Research indicates that pain is linked to higher risk of cardiovascular disease and overall death; however, the impact of pain on death after a heart attack has not yet been examined in large studies,” said study author Linda Vixner, PhD, an associate professor of medical science at the School of Health and Welfare at Dalarna University in Falun, Sweden.

The analysis of health data for more than 18,300 adults who had a heart attack, from the Swedish quality registry called SWEDEHEART, found:

  • Nearly 45% of the participants reported moderate or extreme pain one year after their heart attack.
  • Those with moderate pain were 35% more likely than those with no pain to die from any cause during the study period of 8.5 years.
  • Those who reported extreme pain were more than twice as likely to die during the 8.5 study period, compared to heart attack survivors who had no pain.
  • 65% of the participants experiencing pain at the two-month follow up were also experiencing pain at their 12-month follow up, indicating persistent and long-term pain.

“After a heart attack, it’s important to assess and recognise pain as an important risk factor of future mortality. In addition, severe pain may be a potential obstacle to rehabilitation and participation in important heart-protective activities such as regular exercise. Reduced or lack of physical activity, in turn, increases risk,” Vixner said. “For patients with pain, it is of particular importance to reduce other risk factors, such as smoking, high blood pressure, and high cholesterol levels.”

Study details:

  • Adults in the study were younger than 75 years of age (average age was 62, 24.5% women) and had heart attacks between 2004–2013.
  • Data on pain from a two-month follow-up visit and a participant questionnaire completed one year after their heart attack were assessed to gauge if patients had no, moderate, or extreme pain. The pain they reported was more likely to be due to other health conditions.

The participant survey did not specifically ask about the duration of pain they experienced, although a majority reported having pain both two months after the heart attack and one year later, indicating the pain was long lasting. The study also only included people living in Sweden, which may not apply to people living in other countries or communities.

According to the American Heart Association, a heart attack happens about every 40 seconds in the United States. Data from 2005 to 2014 estimated the annual incidence of heart attack in the United States was 605,000 new heart attacks and 200,000 recurrent heart attacks. Average age at the first heart attack was 65.6 years for men and 72 years for women.

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