Stress echocardiography
Definition
压力超声心动图是一种测试，它使用超声波成像来显示当你在受控环境下锻炼时，你的心脏肌肉向身体泵血的情况. 它最常用于检测血液流向心脏肌肉的减少，由于
Alternative Names
Echocardiography stress test; Stress test - echocardiography; CAD - stress echocardiography; Coronary artery disease - stress echocardiography; Chest pain - stress echocardiography; Angina - stress echocardiography; Heart disease - stress echocardiography
How the Test is Performed
该测试在医疗中心或医疗保健提供者的办公室进行.
A resting
大多数人会在跑步机上走路(或者骑健身自行车)。. 慢慢地(大约每3分钟)，你会被要求在一个斜坡上走得更快(或踩得更快). It is like being asked to walk fast or jog up a hill.
In most cases, you will need to walk or pedal for 5 to 15 minutes, depending on your level of fitness and your age. Your provider will ask you to stop:
- When your heart is beating at the target rate
- When you are too tired to continue
- 如果你有胸痛或血压变化，担心提供者进行测试
If you are not able to exercise, you will get a drug, such as dobutamine, through a vein (intravenous line). 这种药会使你的心跳更快、更剧烈，就像你锻炼时一样.
在整个过程中，您的血压和心律(ECG)将被监测.
心跳加速时，会拍更多的超声心动图, or when it reaches its peak. 这些图像将显示当你的心率增加时，心脏肌肉的任何部分是否不能正常工作. 这是由于动脉狭窄或阻塞导致心脏部分无法获得足够的血液或氧气的迹象.
How to Prepare for the Test
询问十大赌博平台排行榜在检查当天是否需要服用常规药物. Some medicines may interfere with test results. 在没有和十大赌博平台排行榜商量之前，不要停止服用任何药物.
如果你在过去24小时(1天)内服用过以下药物，一定要告诉你的十大赌博平台排行榜:
- Sildenafil citrate (Viagra)
- Tadalafil (Cialis)
- Vardenafil (Levitra)
在考试前至少3小时内不要吃东西或喝水.
Wear loose, comfortable clothing. 您将被要求在测试前签署一份同意书.
How the Test will Feel
电极(导电贴片)将被放置在你的胸部, arms, and legs to record the heart's activity.
你手臂上的血压计每隔几分钟就会充气一次, producing a squeezing sensation that may feel tight.
Rarely, people feel chest discomfort, extra or skipped heartbeats, dizziness, headache, nausea, or shortness of breath during the test.
Why the Test is Performed
这项测试是为了观察你的心脏肌肉在压力下工作时是否有足够的血流量和氧气。.
Your doctor may order this test if you:
- Have new symptoms of angina or chest pain
- Have angina that is getting worse
- Have recently had a heart attack
- 如果你有患心脏病的高风险，你打算做手术或开始锻炼吗
- Have heart valve problems
这个压力测试的结果可以帮助你的供应商:
- 确定心脏治疗的效果，如果需要的话改变治疗方法
- Determine how well your heart is pumping
- Diagnose coronary artery disease
- See whether your heart is too large
Normal Results
一个正常的测试通常意味着你能够锻炼的时间和你的年龄和性别的大多数人一样长或更长. 你也没有症状或有关血压和心电图的变化. 你的心脏图片显示，当压力增加时，你的心脏的所有部分都会更用力地跳动.
正常的结果意味着冠状动脉的血流量可能正常.
测试结果的意义取决于测试的原因, your age, 还有你的心脏病史和其他医疗问题.
What Abnormal Results Mean
Abnormal results may be due to:
- Reduced blood flow to a part of the heart. 最可能的原因是供应心肌的动脉变窄或堵塞.
- 心肌因心脏病发作而留下的疤痕.
After the test you may need:
Angioplasty and stent placement - Changes in your heart medicines
Coronary angiography Heart bypass surgery
Risks
The risks are very low. 医疗保健专业人员将在整个过程中监视您.
Rare complications include:
Abnormal heart rhythm - Fainting (syncope)
Heart attack
References
Boden WE. Angina pectoris and stable ischemic heart disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier; 2020:chap 71.
Fihn SD, Blankenship JC, Alexander KP, et al. 2014 ACC/AHA/AATS/PCNA/SCAI/STS重点更新了稳定性缺血性心脏病患者的诊断和管理指南:美国心脏病学会/美国心脏协会实践指南工作组的报告, and the American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, 心血管血管造影与干预学会, and Society of Thoracic Surgeons. J Am Coll Cardiol. 2014;64(18):1929-1949. PMID: 25077860
Fowler GC, Smith A. Stress echocardiography. In: Fowler GC, ed. Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Philadelphia, PA: Elsevier; 2020:chap 76.
Rader F, Siegel RJ. 应激超声心动图检测冠状动脉缺血. In: Otto CM, ed. Practice of Clinical Echocardiography. 6th ed. Philadelphia, PA: Elsevier; 2022;chap 19.
Van Der Bijl P, Bax JJ, Delgado V. 非运动应激超声心动图对冠心病的诊断价值. In: Otto CM, ed. Practice of Clinical Echocardiography. 6th ed. Philadelphia, PA: Elsevier; 2022:chap 20.
Wu JC, Gillam LD, Solomon SD, Bulwer B. Echocardiography. 见:Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD编. 布劳恩瓦尔德心脏病:心血管医学教科书. 12th ed. Philadelphia, PA: Elsevier; 2022:chap 16.
Review Date: 01/01/2023