Left heart ventricular angiography

定义

Left heart ventricular angiography is a procedure to look at the left-sided heart chambers and the function of the left-sided valves. It is sometimes combined with coronary angiography.

选择的名字

Angiography - left heart; Left ventriculography

如何执行测试

Before the test, you will be given medicine to help you relax. You will be awake and able to follow instructions during the test.

An 静脉注射 线被放置在你的手臂上. The health care provider cleans and numbs an area on your arm or groin. A cardiologist makes a small cut in the area, and inserts a thin flexible tube (catheter) into an artery. Using x-rays as a guide, the doctor carefully moves the thin tube (catheter) into your heart.

When the tube is in place, dye is injected through it. The dye flows through the blood vessels, making them easier to see. X-rays are taken as the dye moves through the blood vessels. These x-ray pictures create a "movie" of the left ventricle as it contracts rhythmically.

The procedure will usually last less than one hour but may be considerably longer.

如何准备考试

You will be told not to eat or drink for 6 to 8 hours before the test. The procedure takes place in the hospital. Some people may need to stay in the hospital the night before the test.

A provider will explain the procedure and its risks. You must sign a consent form for the procedure.

考试的感觉如何

You will feel a sting and burn when the local anesthetic is injected. You may feel pressure when the catheter is inserted. 偶尔, a flushing sensation or a feeling that you need to urinate occurs when the dye is injected.

为什么要进行测试

Left heart angiography is performed to assess the blood flow through the left side of the heart.

正常的结果

A normal result shows normal blood flow through the left side of the heart. Blood volumes and pressures are also normal.

异常结果意味着什么

异常结果可能是由于:

• 心上的洞(室间隔缺损)
• Abnormalities of the left heart valves
• An 动脉瘤 心墙
• Areas of the heart that are not contracting normally
• Blood flow problems on the left side of the heart
• 心脏方面的障碍
• Weakened pumping function of the left ventricle

冠状动脉造影 may be needed when blockage of the coronary arteries is suspected.

风险

风险 associated with this procedure include:

• 心跳异常(心律失常)
• Allergic reaction to dye or sedating medicines
• 动脉或静脉损伤
• 心脏压塞
• 栓塞的 血凝块 在导管的尖端
• Heart failure due to the volume of the dye
• 感染
• 染料引起的肾衰竭
• 低血压
• 心脏病
• 出血
• 中风

注意事项

右心导管 may be combined with this procedure.

Left heart ventricular angiography has some risk because it is an invasive procedure. Other imaging techniques may carry less risk, such as:

• CT扫描
• 超声心动图
• Magnetic resonance imaging (MRI) of the heart
• 放射性核素脑室造影术

Your provider may decide to perform one of these procedures instead of left heart ventricular angiography.

参考文献

Kern MJ, Seto AH, Herrmann J. Invasive hemodynamic diagnosis of cardiac disease. In: Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12日艾德. Philadelphia, PA: Elsevier; 2022:chap 22.

Patel MR, Bailey SR, Bonow RO, et al. ACCF/SCAI/AATS/AHA/ASE/ASNC/HFSA/HRS/SCCM/SCCT/SCMR/STS 2012 appropriate use criteria for diagnostic catheterization: a report of the American College of Cardiology Foundation Appropriate Use Criteria Task Force, Society for Cardiovascular Angiography and Interventions, American Association for Thoracic Surgery, 美国心脏协会, American Society of 超声心动图, American Society of Nuclear Cardiology, 美国心力衰竭协会, 心脏节律学会, Society of Critical Care Medicine, Society of Cardiovascular Computed Tomography, Society for Cardiovascular Magnetic Resonance, 和胸外科学会. 我是科尔·卡迪诺. 2012;59(22):1995-2027. PMID: 22578925 www.ncbi.nlm.国家卫生研究院.gov / pubmed / 22578925 /.

Valente AM, Dorfman AL, Babu-Narayan SV, Krieger EV. Congenital heart disease in the adolescent and adult. In: Libby P, Bonow RO, Mann DL, Tomaselli GF, Bhatt DL, Solomon SD, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12日艾德. Philadelphia, PA: Elsevier; 2022:chap 82.