Stable angina
Conditions
Interventions
Gold Standard:Exercise load electrocardiogram
Index test:HyperQ high-frequency QRS detection technology
Sponsors
Shandong University Qilu Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 79 Years
Inclusion criteria
Inclusion criteria: 1.Inclusion criteria of stable angina pectoris: (1) Clinical symptoms: chest discomfort related to myocardial ischemia (angina pectoris) is described from the following four aspects: a. Location: chest discomfort caused by myocardial ischemia is usually located behind the sternum, which can affect the precordial area, with a palm size range, or even across the anterior chest. The boundary is not very clear. It often radiates to the left shoulder, the medial side of the left arm to the ring finger and little finger, or to the neck, pharynx or jaw. b. Nature: Chest pain is often oppressive, stuffy, constrictive or chest heavy, sometimes described as neck strangulation or burning behind the sternum, but it is not like sharp pain like acupuncture or knife. c. Duration: It usually lasts for several minutes to more than 10 minutes. In most cases, it lasts for 3-5 minutes, rarely more than 30 minutes. If the symptoms only last for a few seconds, it may not be related to angina pectoris. d. Inducement: It is an important feature of angina pectoris that it is related to fatigue or emotional excitement. Angina pectoris is often induced when the load increases, such as walking uphill, against the wind, after a full meal or when the weather becomes cold. Pain usually occurs when you are tired or excited, not after you are tired. Nitroglycerin containing drugs can often relieve angina pectoris in a few minutes. (2) Auxiliary examination: myocardial zymogram was normal. 2.CTA/coronary angiography diagnosed coronary heart disease.
Exclusion criteria
Exclusion criteria: (1) Have acute or chronic respiratory disease; (2) The liver or kidney function is obviously abnormal; (3) Endocrine diseases such as thyroid dysfunction; (4) Anemia or other blood diseases; (5) Connective tissue disease (lupus erythematosus, rheumatoid arthritis, dermatomyositis, polyarteritis nodosa, etc.); (6) Obesity (BMI>28kg/cm^2); (7) Patients with malignant tumors; (8) Patients with infectious diseases or infectious diseases; (9) Patients with trauma or physical activity disorder; (10) Psychological or mental diseases such as depression; (11) Professional athletes, pregnant or lactating women, alcoholics; (15) Unable to cooperate with other examiners in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| HyperQ High Frequency QRS; | — |
Countries
China
Contacts
Public ContactRuixue Yang
Shandong University Qilu Hospital
Outcome results
None listed