Coronary angiography of the heart - what is and what does a coronary examination of the vessels of the heart show?

Coronary angiography of the heart is the "gold standard" for diagnosing cardiac pathology. According to statistics, cardiovascular diseases are the main cause of death. More and more people are at high risk of heart disease.

It is possible to prevent the growth of cardiac ailments with the help of early detection of the causes of the disease.

Modern medicine has a whole arsenal of methods for examining the heart and blood vessels, which allow examination at any stage of the disease and individual characteristics of a person.

Coronary angiography of the heart or angiography is an X-ray method that establishes the patency of the coronary arteries of the heart.

The value of diagnostics lies in seeing the problem from the inside: objectively assess the state of the inner layer of blood vessels and identify congenital defects.

The essence of the procedure is that cardiography of the heart vessels is performed with a contrast agent filling the vessels and projecting what is happening on the angiograph monitor.

Coronary vessels are thin arteries that provide blood and oxygen flow to the myocardium. It is the only source of supply for the heart muscle and is highly vulnerable and prone to damage. Atherosclerosis, myocardial infarction, ischemia - a consequence of narrowing of the lumen, blockage of the coronary vessels.

Coronary angiography of the heart will allow:

• assess the condition of the coronary vessels;
• identify the focus of spasm or occlusion (blockage);
• diagnose anomalies in the structure of the arteries;
• to investigate the state of collateral (lateral and bypass) blood flow.

Only a cardiologist can send a patient for a coronary heart examination.

An indication for a planned study of coronary vessels may be to clarify the diagnosis in ischemia, angina pectoris and other cardiac pathologies, or to confirm the findings for the first time. It is obligatory to carry out coronary angiography before surgical treatment of heart defects.

Cardiologists identify the following indications for coronary angiography of the heart:

• prolonged pain in the chest region, accompanied by shortness of breath;
• deterioration of the patient's condition during intensive treatment;
• planned surgery for prosthetics (replacement) of the heart valve;
• analysis of the effectiveness of shunting;
• congenital heart anomalies;
• diseases of the heart and blood vessels;
• ineffective treatment of ischemia;
• complications of myocardial infarction;
• research of cardiac pathologies of representatives of highly responsible professions (astronauts, pilots, machinists);
• Kawasaki disease;
• traumatic chest injuries.

Coronary angiography allows you to timely identify pathologies of the heart arteries, makes it possible to prescribe the correct treatment, and prevents the development of heart disease.

World medicine has four modern methods for diagnosing the state of coronary vessels:

1. Intravascular ultrasound (IVUS) - an invasive method for examining blood vessels, specifying the position of the coronary bed. Endovascular ultrasound is rarely used.
2. Interventional selective coronary angiography - the introduction of a contrast agent through the catheter. The procedure is fixed on an angiograph and presented in several projections. This technique is dangerous due to complications of aortic aneurysm, thrombus separation, heart attack. Bed rest is strictly indicated for 12 hours after diagnosis.
3. CT coronary angiography - the most popular and clinically relevant research. It is performed on a computed tomograph with ECG synchronization, which reconstructs the images obtained in the diastolic phase of the cardiac cycle, when the coronary arteries do not move. It is performed on an outpatient basis and does not require hospitalization of the patient.
4. Magnetic resonance coronary angiography - a rare procedure usually performed for the purpose of scientific research. A technically complex method that does not provide sufficient additional information to assess the pathology of the coronary arteries.

Coronary angiography of the vessels of the heart - what is it and how to prepare

Coronary angiography of the vessels of the heart is a serious diagnosis that requires preliminary preparation. Most often it is carried out as planned, less often it is performed according to emergency indications.

Preparation for the coronary angiography procedure obliges the patient to perform a number of measures:

• a general blood test with a mandatory leukocyte formula and platelet counts;
• blood chemistry;
• establishment of blood group and Rh factor;
• coagulogram;
• tests excluding hepatitis C and B, HIV infection;
• fluorography;
• 12-lead electrocardiogram;
• veloergometry;
• ultrasound examination of the heart;
• stress echography;
• myocardial scintigraphy at rest and dynamics.

It is advisable for the patient to undergo a course of anti-inflammatory therapy in order to exclude colds and viral diseases, to stabilize existing chronic pathologies.

The day before the coronary angiography of the heart vessels, it is better to abstain from food and depilate the puncture area.

We figured out what coronary angiography of the heart is. Now let's talk about how it is carried out. There are several methods.

The first is selective. The patient is hospitalized (usually one day before). The doctor assesses the patient's current condition, warns of possible risks and consequences. In the absence of contraindications, he is sent to the operating room. Angiography is painless, the patient is conscious and communicates with the doctor.

Selective coronary angiography of cardiac vessels includes the following stages:

1. Novocainic or lidocaine anesthesia.
2. Passing the catheter through the femoral artery and the upper part of the aorta to the orifice of the coronary vessels (possibly through the forearm artery).
3. Injection of a radiopaque contrast agent (often used Lipiodol Ultra Fluid).
4. Fixing the process by an angiograph, viewing what is happening on the monitor and recording the results. Filming of arteries is performed in several projections and different planes.

CT coronary angiography does not require preparatory procedures.

You should only follow some recommendations:

• do not use drugs and foods that increase heart rate;
• give up smoking and alcohol;
• adhere to a diet the day before;
• do not eat.

CT angiography is performed in several stages.

The first is the study of coronary calcium (CaScore) - the initial stage, revealing the presence of atherosclerosis of the coronary vessels. It is carried out without the introduction of a special substance, it consists in calculating the amount of calcium in the plaques of the coronary arteries. Determines the need for CT - examination.

The second - CT - angiography is performed lying on your back with your arms raised behind your head.

The total time of the procedure lasts from 40 to 60 minutes and includes the following steps:

• taking Isoket or Nitroglycerin;
• introduction of a radio-opaque iodine-containing substance using an automatic perfuser and saline solution;
• scanning the sections of the coronary arteries with a tomograph, the patient's execution of commands for holding the breath;
• acquisition of images in the axial plane.

During the session, the patient is in constant communication with the doctor, receiving clear instructions and explanations. 10 minutes after CT angiography, the patient will be able to return to their normal lifestyle. Since the results require detailed interpretation, the patient receives them the next day.

Coronary angiography of cardiac vessels and contraindications to its conduct

Coronary angiography is a medical technique that includes not only diagnostics, but also the specifics of treatment, moreover, there are not only individual indications, but also contraindications, coronary angiography of the heart vessels is not exception.

As such, there are no absolute contraindications for conducting this kind of research.

At the same time, there is a list of special rather significant restrictions that have the ability to affect the abolition of coronary angiography.

These include:

• the occurrence of an allergic reaction to a special substance that is administered to the patient before the start of the examination;
• renal or heart failure - thanks to drug treatment, the general condition of the patient is stabilized, therefore, the study becomes possible;
• the presence of changes associated with the coagulation of blood cells or the so-called anemia - the study can be carried out only after careful preparation of the patient;
• higher than normal blood sugar levels;
• the presence of various kinds of infectious diseases;
• inflammation of the inner lining of the heart;
• the period of the exacerbated stage of peptic ulcer disease;
• the presence of persistent blood pressure, not amenable to drug treatment.

Before performing angiography of the heart vessels, the specialist gives the patient a referral to undergo an examination, which includes, electrocardiography, echocardiography, blood test to determine the group, consultation of a number of specialists, tests to identify possible viruses.

Do not forget that the patient must inform the attending physician about all existing diseases, as well as about possible allergic reactions.

Direct preparation for angiography of the heart vessels is carried out in several stages:

• since the diagnosis is carried out on an empty stomach, the patient should stop taking any food in the evening;
• the place for research is shaved if necessary;
• a special method of using medicinal preparations is being developed, not only exclusively before the procedure, but also in advance.

For coronary angiography, an analysis is performed to determine the venous access to the area heart, for sufficient provision of the required movement and further penetration of the substance into the coronary arteries. This is done to further achieve the most clear and true results of proper quality. Also, the doctor assesses the general condition of the patient to establish the possibility of contact with a specialist during the procedure.

Of course, there are cases when emergency or planned angiography of the heart vessels is required.

Emergency coronary angiography is recommended for people in a period of instant deterioration in health after endovascular surgery. The main signs in this case include negative changes in electrocardiogram indicators, deterioration in general condition, as well as a significant increase in the level of enzymes in the blood.

This form takes place in people who are inpatient treatment during a period of sharp changes, namely, an increase in the intensity of an attack of angina pectoris.

Coronary examination of the vessels of the heart - interpretation of the results

Coronary examination of cardiac vessels does not last long, and after this procedure, a sparing regimen is recommended, which gives restrictions on flexion of the limb used during surgical treatment to prevent further bleeding in the area puncture. To prevent the occurrence of various disorders of the kidneys, the patient is advised to drink as much as possible.

There may be cases when painful sensations of a sharp nature appear at the puncture site, a significant swelling with pronounced bruising, possibly feeling weak, low blood pressure, or shortness of breath. In this case, you should immediately inform your doctor about it.

There may be some risk of complications from a procedure such as coronary coronary artery disease.

Frequently met of them:

• the appearance of blood in the place where the puncture was carried out;
• arrhythmia;
• the appearance of allergies;
• severe detachment of the intima of the artery;
• development of myocardial infarction.

A thorough examination of several specialists at once makes it possible to reduce the risk of further development of this kind of ailment.

As for the results of CAG in cardiology, they represent a combination of numerous conclusions about the general the state of the vessels of the heart region, this also includes the level of their narrowing, as well as the sufficiency of blood supply myocardium.

When detecting a narrowing of the lumen to half, it does not cause changes that entail serious consequences. If the coronary examination of the heart vessels showed an excess of the required indicators, then this indicates a significant violation. Recovery requires surgical treatment.

The images obtained make it possible to determine the types of stenosis:

• local - cover a relatively small area of ​​the vessel;
• diffuse - refer to a fairly large area.

The division of the stenosis is also implied relative to the walls:

• even and smooth;
• undermined and uneven.

The complicated form is quite common and occurs due to ulceration of an atherosclerotic plaque.

As a result of a coronary examination of the vessels of the heart, complete blockage of the lumen of the heart vessels can be detected. In this case, the area of ​​the myocardium is subjected to oxygen and many nutrient restriction.

Coronation of the heart vessels will also help to identify the severity and prevalence of atherosclerosis. To do this, it is enough to assess the presence of stenoses and atherosclerotic plaques in the main arteries of the heart region.

Thus, the conclusion should indicate the presence of one, two or three-vascular lesions of the system. Note also that this procedure is quite expensive.