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Spells of pain usually last less than a few minutes. Typically it begins at rest and other symptoms are absent. Concerns about the condition may result in anxiety. [1] The underlying cause is unclear. Some believe the pain may be from the chest wall or irritation of an intercostal nerve. [1] [2] Risk factors include psychological stress. [2]
Chest pain lasting only a few seconds is normally not angina (such as precordial catch syndrome). Myocardial ischemia comes about when the myocardium (the heart muscle) receives insufficient blood and oxygen to function normally either because of increased oxygen demand by the myocardium or because of decreased supply to the myocardium.
Connexions, later known as OpenStax CNX [1] was a global repository of educational content provided by volunteers. The open source platform was provided and maintained by OpenStax, which is based at Rice University. The collection was available free of charge, can be remixed and edited, and was available for download in various digital formats. [2]
This can reduce blood flow to the heart, causing damage to heart tissue and chest pain, despite normal heart scans. [45] In individuals with a history of coronary artery disease, panic attacks and stress can make chest pain worse by increasing the heart's need for oxygen. This occurs because increased heart rate, blood pressure, and stress ...
OpenStax textbooks follow a traditional peer review process aimed at ensuring they meet a high quality standard before publication. Textbooks are developed and peer-reviewed by educators in an attempt to ensure they are readable and accurate, meet the scope and sequence requirements of each course, are supported by instructor ancillaries, and are available with the latest technology-based ...
The symptoms can last longer than those in stable angina, can be resistant to rest or medicine, and can get worse over time. [ 7 ] [ 8 ] The cardinal symptom of critically decreased blood flow to the heart is chest pain , experienced as tightness, pressure, or burning. [ 5 ]
A normal resting heart rate is 60 to 100 beats per minute. A resting heart rate of more than 100 beats per minute is defined as a tachycardia. During an episode of SVT, the heart beats about 150 to 220 times per minute. [9] Specific treatment depends on the type of SVT [5] and can include medications, medical procedures, or surgery. [5]
[1] Management of chest pain is based on the underlying cause. [1] Initial treatment often includes the medications aspirin and nitroglycerin. [1] [4] The response to treatment does not usually indicate whether the pain is heart-related. [1] When the cause is unclear, the person may be referred for further evaluation. [3]