Shoulder pain as a symptom of heart attack
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Shoulder Pain as a Symptom of Heart Attack: Clinical Presentation and Mechanisms
Shoulder pain is a recognized symptom that can be associated with heart attacks (myocardial infarction) and other forms of heart disease, such as angina pectoris. This pain is not always widely discussed but is common enough to warrant attention in clinical settings Ernstene1939Ernstene1940.
Frequency and Characteristics of Shoulder Pain in Heart Disease
Persistent shoulder pain often develops in patients with coronary artery disease, especially after a myocardial infarction. The pain can also occur in individuals with frequent and severe angina pectoris, even if they have not had a previous heart attack Ernstene1939Ernstene1940. The left shoulder is more commonly affected than the right, but pain can occur in one or both shoulders Ernstene1939Ernstene1940Boas1937. This pain typically lasts for weeks or months and is usually worsened by arm movement, but not by walking Ernstene1939Ernstene1940.
Diagnostic Challenges and Pain Quality
Shoulder or arm pain related to heart disease can be misleading, as it may be mistaken for musculoskeletal problems. Patients may seek treatment for shoulder pain without realizing it is related to their heart. The pain is often described as constricting, squeezing, or cramp-like, and may radiate from the chest to the left arm, both arms, or even to the jaw or upper abdomen . Sometimes, the referred pain in the shoulder or arm is more troubling to the patient than the chest pain itself .
Mechanisms and Radiation of Pain
The exact mechanism behind shoulder pain in heart disease is not fully understood. It is believed that the pain may result from a reciprocal relationship between nerve signals from the heart and the nerves supplying the shoulder (brachial plexus) . The pain is often continuous and may be aggravated by sudden worsening of the heart condition, such as a new heart attack or heart failure . In some cases, local shoulder conditions may interact with heart-related pain, making the symptoms more pronounced .
Shoulder Pain After Cardiac Events and Surgery
Shoulder pain is also a significant issue after cardiac surgery. Nearly half of patients in cardiac rehabilitation after open-heart surgery report moderate to severe shoulder pain that can persist for over a year, impacting their rehabilitation and daily activities . Exercise modifications are often needed to manage this pain during recovery .
Broader Associations Between Shoulder Pain and Cardiovascular Disease
Large population studies have found that people with shoulder symptoms are at higher risk of developing hypertension and cardiovascular disease, especially in older adults . This suggests that shoulder pain may be an important marker for underlying or future heart problems .
Conclusion
Shoulder pain can be an important symptom of heart attack and other heart diseases, often presenting as persistent, movement-related pain, especially in the left shoulder. It may be mistaken for a musculoskeletal issue, leading to delays in recognizing the underlying cardiac cause. Awareness of this association is crucial for timely diagnosis and management, particularly in patients with risk factors for heart disease or those recovering from cardiac events Ernstene1939Ernstene1940Somerville1959+3 MORE.
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Most relevant research papers on this topic
Shoulder Pain As a Sequel to Myocardial Infarction.
Persistent shoulder pain in patients with coronary artery disease is common and often accompanied by periarthritis-like symptoms in other joints.
Shoulder pain and risk of developing hypertension and cardiovascular disease: A nationwide population-based cohort study in Taiwan
Shoulder symptoms are associated with an increased risk of developing hypertension and cardiovascular disease, particularly in individuals aged 65 years.
Analysis of the Relationship between Electrodermal Activity and Heart Rate with Pain in Individuals with a Shoulder Pathology
Greater pain experienced in individuals with shoulder pathology is associated with increased amplitude of electrodermal and heart rate signals.
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