Surgical operations and invasive studies of the heart. How heart surgery is performed Heart surgery procedure

May God grant everyone to live a long life so that the surgeon's scalpel never touches his heart. However, not always cardiac surgery can be replaced by therapy.

When is surgery necessary?

When conservative therapy does not give the desired result.
When, despite all the ongoing treatment, the patient's condition continues to deteriorate.
When there are severe congenital heart defects, severe arrhythmia, cardiomyopathy.

By urgency, cardiosurgical operations are emergency and planned.

Emergencies are carried out when a person's life is in serious danger. This happens when a myocardial infarction occurs, a blood clot suddenly breaks off, or aortic dissection begins. They do not tolerate delay in surgery when the heart is injured. The consequences of delay are severe.
Planned are carried out in accordance with the developed plan for the correction of the patient's health. The date of the operation may be postponed depending on the circumstances. For example: with a cold, to avoid additional stress on the heart, or when the pressure suddenly dropped.

Surgical intervention differs in the technique of execution. There are such types of heart operations:

with the opening of the chest;
without opening the chest.

open heart surgery

Chest opening operations

Such surgical intervention is used in especially severe cases, when full accessibility of the heart is required during the operation.

Opening of the chest is performed with such pathologies:

tetralogy of Fallot (the so-called congenital heart disease with four serious violations of the anatomical structure);
serious anomalies of intracardiac partitions, valves, aorta and coronary arteries;
heart tumors.

The patient arrives at the hospital one day before the operation. Passes inspection, gives written consent. Be sure to wash with antibacterial soap and shave your hair. Where do you shave your body hair? The hair will be shaved at the site of the proposed incision. If you are going to have a coronary bypass surgery, you will have to shave your legs and groin. In the case of a heart valve replacement, it is necessary to shave the hair in the lower abdomen and in the groin area.

The surgery is performed under general anesthesia. To gain access to the heart, the surgeon opens the chest of the person being operated on. The patient is connected to an artificial lung ventilation apparatus, the heart stops for a while and surgical manipulations are performed with the organ.

How long the operation takes depends on the severity of the pathology. On average, several hours.

Tetralogy of Fallot

Open heart surgery has two advantages.

The surgeon has full access to the patient's heart.
Such a surgical intervention is possible without state-of-the-art medical equipment.

However, there are also significant drawbacks.

Surgical manipulations with the heart last several hours, which leads to fatigue of the operating team, during the operation there is a higher probability of making an erroneous action.
Opening the chest is fraught with various injuries.
There is a noticeable scar after heart surgery.
Various complications are not excluded:

myocardial infarction,
thromboembolism,
bleeding,
infections;
coma after surgery.

A long recovery is required with significant limitations in the patient's activities.

In most cases, when surgery is performed with an opening of the chest, disability is given after heart surgery, as after a heart attack.

What operations and under what pathologies are performed on the open heart?

Pathologies of the coronary arteries

Coronary artery bypass grafting is done in case of serious atherosclerotic lesions of the coronary arteries, which led to a severe form of coronary heart disease. The essence of shunting is to create a bypass for blood flow to the heart using a shunt, for which an artery or vein taken from the patient is used. For example: mammary coronary artery bypass grafting (MCB) is performed using the internal mammary (mammary) artery.

Operation Ross

Heart valve defects

Today, valves made from the patient's biological material are used to replace damaged valves.

The Ross procedure involves using the patient's own valvular pulmonary artery to replace a diseased aortic valve. An implant is placed in place of the pulmonary valve. Eliminates complications associated with rejection of a valve made of foreign material. Made for both adults and children.
The Ozaki operation involves the use of the patient's own tissue. Only in this case, the replacement of the aortic valve is performed with a valve made from the patient's pericardium. Complications with valve rejection are not observed for the same reason.

Such surgical manipulations are within the competence of cardiac surgeons, and are one of the most complex in nature. Heart surgery is a last resort in the treatment of serious cardiovascular diseases, which are resorted to in order to improve the quality of life of the patient, and sometimes even save his life.

In Russia, this type of surgical intervention is not practiced as often as, for example, in America or in European countries. First of all, this is due to the cost of such treatment: not every citizen of the Russian Federation is able to pay the costs of the operation out of his own pocket.

At the same time, this branch of medicine in domestic medical institutions is constantly developing, which makes it possible for patients to receive qualified advice and assistance when applying.

When is heart surgery performed - indications and timing

The main pathologies that may require surgical intervention are:

Poor myocardial blood supply. A similar condition in medical circles is called coronary heart disease. IHD can lead to the formation of an aneurysm, extensive thrombosis. With all the described ailments, certain surgical procedures on the heart may be required.
Heart defects that have both innate and acquired nature. Many defects in the structure of the heart valve are incompatible with life. Therefore, such pathologies are diagnosed even in the prenatal period, and the operation itself is carried out in the first days of the baby's life.
Failures in the frequency, sequence and rhythm of heart contraction, - arrhythmias.

Common indications for heart surgery are the following pathological conditions:

Active deterioration of vital signs against the background of the development of underlying heart disease.
The inability of drug therapy to cope with the manifestations of the disease.
Noticeable deterioration in the functioning of the heart muscle that cannot be eliminated with medications.
advanced stage of the disease. This happens when the patient does not seek qualified help in time.

It should also be taken into account that any surgical manipulations on the heart carry a risk and are fraught with the development of a number of exacerbations in the rehabilitation period. Doctors turn to such treatment when other measures do not bring the desired effect.

In addition, heart surgery requires a comprehensive examination of the patient and careful preparation for the operation. This will ensure a successful recovery and minimize the likelihood of postoperative complications.

Based on the patient's condition, the type of surgical intervention under consideration is:

emergency. In such a situation, examination and preparation are carried out in a minimal amount, and the operation itself is carried out as soon as possible. This type of manipulation is prescribed for life-threatening conditions, when every minute counts: with aneurysm rupture, extensive myocardial infarction. Often, emergency interventions on the heart are performed on newborns with complex heart disease.
Urgent. There is time for diagnostic and preparatory measures, but not much. After receiving the results of the examination, surgical treatment of the heart disease is carried out.
planned. In some medical sources, this type of operation is called elective. After a detailed study of the patient's condition by a cardiac surgeon, a final decision is made on the need for surgical intervention. Together with the patient or his parents (when operating on a child), the exact date of the operation is agreed.

Closed and open heart surgeries - how they are performed and to whom they are prescribed

Based on the type of defect that needs to be eliminated, various methods of surgical intervention are used:

Note!

Not so long ago, a new direction in the treatment of heart defects began to be applied in cardiac surgery - X-ray surgery. In essence, they are minimally invasive - the doctor makes small incisions or punctures, and brings special instruments to the heart zone through the catheter. An access point can be, incl. and femoral vessels. Using cans, you can increase the diameter of the narrowed valve - or reduce it by opening the patch (its design is similar to an umbrella). With the help of expanding tubules, vascular stenosis is eliminated.

The progress of the entire procedure is monitored through the monitor screen - this ensures the effectiveness of the operation, as well as its safety for the patient. In addition, during the manipulation under consideration, general anesthesia is not used: the doctor is limited to anesthesia with mini-accesses.

X-ray surgery can be both the main and auxiliary methods of treating errors in the work of the heart.

Most popular types of heart surgery

To date, the following operations are used in cardiac surgery practice:

1. With coronary heart disease:

2. In case of diagnosing heart disease:

3. In the presence of arrhythmia:

In cases where the treatment of individual anatomical structures of the heart is impossible or ineffective, and the main organ for pumping blood cannot cope with its main function, they perform heart transplant .

This operation is fraught with a number of complications, among which is graft rejection.

Today, scientists are conducting research to maximize the life extension of those who have survived heart transplants.

Heart valve replacement
- Possible complications and recommendations for care

Heart surgery is performed only when necessary. The most common of these are heart valve replacement and coronary artery bypass grafting. The first is necessary if the patient is concerned about valvular stenosis. It should be noted that heart surgeries pose a serious risk to the patient's life, they are carried out with maximum precision and caution. Heart surgery sometimes leads to numerous problems and complications, in order to avoid this, you can use an alternative technique - valvuloplasty.

The procedure can replace replacement surgery, help normalize the activity of the heart muscles. In the process, a special balloon is inserted into the opening of the aortic valve, at the end this balloon is inflated. It is worth considering: if a person is in old age, valvuloplasty does not give a lasting effect.

Heart valve replacement

To decide on such a procedure, it is necessary to establish a diagnosis.

The operation is carried out immediately or some time after the test.

In some situations, the results indicate that a person needs bypass surgery. Valve replacement is an open procedure that can be performed using minimally invasive surgery. It should be remembered that heart valve replacement is a very complicated procedure, despite this, it is carried out very often.

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Stages of the procedure and further rehabilitation

First you need to open the chest. Next, the doctor connects the patient to a special apparatus that provides artificial circulation. The device temporarily replaces the heart. The patient's circulatory system is connected to the device, after which the natural valve is removed and replaced. When this manipulation is completed, the device is turned off. In most cases, heart surgery goes well, but a scar forms on the organ.

After recovery from anesthesia, the breathing tube is removed from the lungs. If you want to remove excess fluid, such a tube should be left for a while. After a day, it is allowed to drink water and liquid, you can walk only after two days. After such an operation, pain in the chest area can be felt, and on the fifth day the patient is completely discharged. If there is a risk of complications, the hospital stay must be extended by 6 days.

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Can there be complications after valve replacement?

A person can face such problems at different stages of the disease. During the operation, there is a risk of heavy bleeding, in addition, difficulties with anesthesia may arise. Possible risk factors include internal bleeding, seizures, possible infections. A heart attack can also happen, but this happens very rarely. As for the greatest danger, it lies in the appearance of tamponade of the pericardial cavity. This phenomenon occurs when blood fills its heart sac. This causes serious malfunctions in the functioning of the heart. Operations on the heart cannot but affect the general condition of a person. During the rehabilitation period, strict medical supervision is required. The need to visit the surgeon arises after 3-4 weeks after the operation. It is important to maintain the general well-being of the patient. An optimal dose of physical activity should be prescribed, it is important to stick to a diet.

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What is coronary artery bypass grafting?

Coronary artery bypass grafting is a type of surgery that restores blood flow in the arteries. The procedure is necessary to eliminate coronary heart disease. The disease manifests itself when the lumen of the coronary vessels narrows, as a result of which an insufficient amount of oxygen enters the heart muscle. Coronary artery bypass surgery aims to prevent changes in the myocardium (heart muscle). After the operation, he should fully recover and contract better. It is necessary to restore the affected area of the muscle, for this the following procedure is carried out: everyday bypass shunts are placed between the aorta and the coronary vessel that is affected. Thus, the formation of new coronary arteries occurs. They are designed to replace the narrowed ones. After the shunt is applied, blood from the aorta flows through a healthy vessel, thanks to which the heart produces a normal blood flow.

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What is the operation for?

This procedure will be required if the left coronary artery of the vessel that provides flow to the heart is affected. It is also needed if all coronary vessels are damaged. The procedure can be double, triple, single - it all depends on how many shunts the doctor needs. With coronary heart disease, the patient may need one shunt, in some cases two or three. Bypass surgery is a procedure that is often used for atherosclerosis of the heart vessels. This happens when angioplasty is not possible. As a rule, a shunt can serve for a long time, its functional suitability is 12-14 years.

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Carrying out coronary artery bypass grafting

The duration of the operation is 3-4 hours. The procedure requires maximum concentration and attention. The doctor needs to gain access to the heart, for this it is necessary to dissect the soft tissues, then open the sternum and perform a stenotomy. During the operation, a procedure is carried out that is necessary for temporary, it is called cardioplegia. The heart must be cooled with very cold water, then a special solution should be injected into the arteries. To attach shunts, the aorta must be temporarily blocked. To do this, it is necessary to pinch it and connect the heart-lung machine for 90 minutes. Plastic tubes should be placed in the right atrium. Next, the doctor performs procedures that contribute to the flow of blood into the body.

What is routine vascular bypass surgery? This method involves the implantation of special implants into the coronary vessels outside the obstruction, the end of the shunt is sutured to the aorta. In order to be able to use the internal mammary arteries, it is necessary to carry out the procedure with the expenditure of more time. This is due to the need to separate the arteries from the chest wall. Upon completion of the operation, the doctor carefully fastens the chest, for this a special wire is used. With its help, a soft tissue incision is sutured, then drainage tubes are applied to remove residual blood.

Sometimes bleeding occurs after the operation, it continues throughout the day. The installed drainage tubes should be removed after 12-17 hours after the procedure. At the end of the operation, the breathing tube must be removed. On the second day, the patient can get out of bed and move around. Restoration of the heart rhythm takes place in 25% of patients. As a rule, it lasts for five days. As for arrhythmia, this disease can be eliminated within 30 days after surgery, for this conservative methods of therapy are used.

Tuesday is surgery day. The team is preparing for a long morning work. During the operation, the chest is opened and the heart is prepared for vessel transplantation.

Disease history

Mr. Thomas, a 59-year-old tanker driver, is married with two adult children. He had shingles on the right side of his neck, followed by an uncomfortable constriction in his throat, accompanied by sweating and nausea. He first felt these symptoms while walking up the steps of his truck. They continued, and Thomas decided to seek the advice of a therapist.

Thomas's high blood pressure, obesity, and long history of smoking were reason enough for an ECG. Her results showed the presence of coronary heart disease. Thomas was referred to a cardiac expert (a cardiac internist, not a surgeon). Despite the applied medical treatment, the pain continued.

Tests confirmed the presence of the disease, in particular an angiogram (a test using a dye injected into an artery to detect narrowing) revealed a narrowing in the left main coronary artery with damage to the left and right vessels. Since medical treatment was unsuccessful and angioplasty (stretching a narrowed vessel using a catheter) was not an option, Mr. Thomas was referred for surgery.

Monday

Mr. Thomas is hospitalized. His anamnesis, data of examinations and tests were analyzed. Two units of blood for transfusion are tested for compatibility. The patient is explained the essence of the operation and warned about the risk associated with it. Obtain written consent for CABG.

Tuesday

Early in the morning, Mr. Thomas is being prepared for the operation.

7:05 Premedication and anesthesia

8:15 a.m. Mr. Thomas was sedated 70 minutes ago and a ventilation tube has already been placed in his airway. After the application of anesthesia and paralyzing agents, his breathing is supported by a ventilator. Prior to transferring Mr. Thomas to the operating room, the anesthesiologist establishes monitoring of venous and arterial blood flow.

8:16 OR Mr. Thomas is set up. On the left - a table with instruments, on the right - a ready-to-use heart-lung apparatus.

8:25 Patient in the operating room. The skin of his chest and legs are treated with an antiseptic solution to reduce the risk of infection.

8:40 Opening of the chest

The skin has already been processed, the patient is dressed in sterile clothes. One of the surgeons makes an incision in the leg to extract the vein, and the second cuts the skin on the chest. After a preliminary incision with an ordinary scalpel, he uses an electric one, which cuts the vessels, stopping the bleeding.

8:48 The surgeon cuts the sternum bone with an electric saw with a pneumatic drive.

8:55 Artery and vein removal

View of the internal thoracic (mammary) artery in the mirror in the center of the surgical lamp. This artery is very elastic. The top end of it will remain in place, it will be cut off at the bottom and then connected to the coronary artery.

An angled retractor is placed along the left edge of the sternum to lift it and expose the mammary artery that runs along the inside of the chest.

At the same time, one of the main veins on the leg - the great saphenous vein - is prepared for transplantation. It is almost completely removed from the left thigh.

9:05 Connecting to the heart-lung machine

The heart-lung machine is not yet connected to the patient. One of the five rotating pumps circulates the blood, while the rest are used as side pumps to transport separated blood to prevent blood loss during surgery. The patient needs to enter heparin - a means to thin the blood and prevent the formation of clots during its passage through plastic tubes.

Tubes to the heart-lung apparatus. On the left, with bright red blood, is the arterial return line, which carries blood back into the patient's aorta. On the right - two tubes that drain blood from the inferior and superior vena cava under the influence of gravity. The incision in the sternum is fixed with a spacer.

Part of the heart-lung apparatus is a membrane oxygenating device that maintains blood circulation in the patient's body. At the moment, the device is filled with blood, carbon dioxide is removed from it. The blood is re-oxygenated and returned to the patient's body.

An arterial return tube is inserted into the aorta (the main artery of the body) and two venous drains are inserted into the vena cava (the main vein of the body).

9:25 Cardiac arrest

On the main artery - the aorta - a clamp is placed to isolate the heart from artificial blood circulation. Chilled fluid is injected into the isolated aorta to stop the heart. The surgeon puts on special glasses for microsurgery with loupes that give a magnification of 2.5 times. The blood vessels he will transplant are 2-3 mm in diameter, and the sutures are the diameter of a human hair.

A thorough examination of the heart is carried out to confirm the data obtained using the angiogram. It is specified which coronary arteries need to be bypassed. It was decided to make two shunts.

After stopping the blood flow in the left anterior descending artery, a 1 cm incision is made at the site of the bypass using a surgical loop.

10:00 First bypass

Close-up of the heart. The left internal mammary (mammary) artery - at the top left - is sutured to the left anterior descending artery so that blood flow to the heart is restored. Arteries are hidden by epicardial fat.

The end of the left internal mammary artery is sutured laterally to the left anterior descending artery. This forms the first bypass shunt.

The position of the first performed shunt. The end of the lower part of the left internal mammary artery - a blood vessel with a diameter of 3 mm - is completely sutured to the left anterior descending artery.

10:22 Second bypass

The second bypass shunt is sutured with the upper end to the aorta, and with the lower end to the right posterior descending artery. The transverse clamp is removed, blood flow through the heart is restored.

The upper end of the venous shunt is connected to the aorta. Part of the aorta is isolated with an arcuate clamp and a hole is made into which a vein is sutured.

End of both bypass processes. The second shunt, shown on the left side of the diagram, is formed from the saphenous vein of the leg.

11:18 Chest closure

Circulation is restored, the heart contracts after an electric shock with the transition from ventricular fibrillation to sinus mode. Two drains are installed in the anterior and posterior parts of the heart. The blood thinning effect of heparin was eliminated by the drug protamine. The surgeon sews the separated halves of the sternum together. The skin will be closed with an internal absorbable suture.

The nurse applies tape to the suture and to the drainage tubes leading from the patient's chest. Soon the patient will be placed in the intensive care unit, where he will be observed.

The human body. Outside and inside. №1 2008