Heart disease requiring surgery. What are heart surgeries? How operations are done

Let's try to lift the veil of the mystery of their work and find out what types of heart surgeries exist and are carried out today. Is it also possible to perform heart surgery without opening the chest?

When the heart is in the palm of your hand or open surgeries

Open heart surgery is so called because the cardiac surgeon "opens" the patient's chest, cuts through the sternum and all soft tissues, and makes an opening of the chest. Such interventions, as a rule, are performed with the connection of a heart-lung machine (hereinafter referred to as AIC), which is a temporary replacement for the heart and lungs of the operated person. This apparatus is a complex device of rather impressive dimensions, which continues to pump blood through the body when the patient's heart is artificially stopped.

Thanks to AIC, open-heart surgery can be extended for many hours if necessary. Open surgeries are used for valve replacement, coronary artery bypass grafting can also be performed in this way, many heart defects are eliminated by open interventions. It should be noted that AIC is not always used during their implementation.

The body can not always tolerate the intervention of a foreign heart substitute: the use of AIC is fraught with complications such as renal failure, impaired cerebral blood flow, inflammatory processes, and impaired blood rheology. Therefore, some operations on the open heart are carried out in the conditions of his work, without the connection of the AIC.

Such interventions on a beating heart include coronary artery bypass grafting, during this operation on a beating heart, the area of \u200b\u200bthe heart that the surgeon needs is temporarily switched off from work, and the rest of the heart continues to work. Such manipulations require high qualifications and skills of the surgeon, and also have a much lower risk of complications, they are perfect for people over 75 years old, patients with a large arsenal of chronic diseases, patients with diabetes mellitus than operations on an organ that is turned off from the blood circulation.

But all the pros and cons, of course, are determined by the cardiac surgeon. Only the doctor decides to keep the heart working, or stop it for a while. Open surgeries are the most traumatic, having a higher percentage of complications; after surgery, a scar remains on the patient's chest. But sometimes only such an operation can save a person's life, improve his health, return him to a full, happy life.

Intact heart or closed surgeries

If the sternum, heart chambers and the heart muscle itself were not opened during surgery, then these are closed heart surgeries. During such operations, the surgical scalpel does not affect the heart, and the surgeon's work consists in the surgical treatment of large vessels, cardiac arteries and aorta, the chest is also not opened, only a small incision is made on the chest.

Thus, a pacemaker can be installed, heart valve correction, balloon angioplasty, shunting, vascular stenting can be performed. Closed operations are less traumatic, have a lower percentage of complications, unlike open ones. Closed vascular surgery can often be the first step before subsequent heart surgery.

Indications for their conduct is always determined by the doctor.

Achievements of modern cardiac surgery or minimally invasive operations

Cardiac surgery is steadily moving forward, and an indicator of this is the increasing percentage of low-traumatic, high-tech manipulations that allow you to get rid of the pathology of the heart and blood vessels with minimal intervention and impact on the human body. What are minimally invasive interventions? These are surgical operations performed by introducing instruments or special devices, through mini-accesses - 3-4 cm incisions, or without incisions at all: during endoscopic operations, incisions are replaced by punctures.

When performing minimally invasive manipulations, the path to the heart and blood vessels can lie through the femoral vessels, for example - these operations are called endovascular, they are performed under x-ray control. Elimination of congenital malformations, prosthetic heart valves, all operations on vessels (from removal of a blood clot to expansion of the lumen) - all these interventions can be performed using minimally invasive technologies. Emphasis is placed on them in modern cardiac surgery, since a low risk of complications, minimal impact on the body are those huge advantages that patients can appreciate literally on the operating table.

Anesthesia during endoscopic procedures is not required, it is enough just to anesthetize the puncture site. Recovery after heart surgery performed using a minimally invasive technique is ten times faster. Such methods are also indispensable in diagnostics - coronary angiography, a method for examining the vessels of the heart by introducing contrast and subsequent x-ray control. In parallel with the diagnosis according to the indications, the cardiac surgeon can also perform therapeutic manipulations on the vessels - the installation of a stent, balloon dilation in a narrowed vessel.

And diagnosis and treatment by puncture on the femoral artery? Isn't this a miracle? Such miracles for cardiac surgeons are becoming routine. The contribution of endovascular methods of treatment is also invaluable in cases where the threat to the life of the patient is especially acute and minutes count. These are situations of acute coronary syndrome, thromboembolism, aneurysm. In many cases, the availability of the necessary equipment and qualified personnel can save the lives of patients.

When is the operation indicated?

It is up to an experienced cardiac surgeon or a council of doctors to decide whether an operation is indicated, as well as to determine the type of surgical intervention on the heart and blood vessels. The doctor can make a conclusion after a thorough examination, familiarization with the history of the development of the disease, monitoring the patient. The doctor should know the ins and outs of the disease very well: how long the patient has been suffering from cardiac pathology, what medications he takes, what chronic diseases he has, when he felt worse ... After evaluating all the pros and cons, the doctor makes his verdict: whether to have surgery or not. If the situation develops according to the above scheme, then we are dealing with a planned cardiac surgery.

It is shown to the following people:

lack of effect from adequate drug therapy;
rapidly progressive deterioration of well-being against the background of ongoing treatment with pills and injections;
severe arrhythmias, angina pectoris, cardiomyopathy, congenital and acquired heart defects requiring correction.

But there are situations when there is no time for reflection, questioning and analysis of the medical history. We are talking about life-threatening conditions - a blood clot broke off, an aneurysm exfoliated, a heart attack occurred. When the time goes by for minutes, emergency cardiac surgery is performed. Stenting, coronary artery bypass grafting, thrombectomy of the coronary arteries, radiofrequency ablation can be performed urgently.

Consider the most common types of heart surgery

CABG - coronary artery bypass grafting "on hearing" in many, probably because it is performed for coronary heart disease, which is extremely common among the population. CABG can be performed both open and closed, and combined techniques with endoscopic inclusions are also performed. The essence of the operation is to create bypass routes of blood flow through the vessels of the heart, restoring normal blood supply to the myocardium, which leads to a better supply of oxygen to the heart muscle.
RFA - radiofrequency ablation. This type of surgical intervention is used to eliminate persistent arrhythmias, when drug therapy is powerless in the fight against arrhythmias. This is a minimally invasive intervention, which is performed under local anesthesia, a special conductor is inserted through the femoral or subclavian vein, which supplies an electrode to the focus of pathological impulses in the heart, the current flowing through the electrode to the pathological focus destroys it. And the absence of a focus of pathological impulses means the absence of arrhythmia. 12 hours after the manipulation, the patient is already allowed to get up.
Prosthetic or plastic heart valves. Prosthetics means complete valve replacement, the prosthesis can be mechanical or biological. And plastic implies the elimination of defects in the "native" valve or valve apparatus. There are certain indications for these interventions, which are clearly known to cardiac surgeons.
Installing a pacemaker. Cardiac arrhythmias, severe bradycardia may be indications for installation, which, thanks to modern technology, can also be performed endoscopically.

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.

Surgical interventions on the heart are necessary in the treatment of many pathologies of the cardiovascular system that are not amenable to standard drug therapy. With the implementation of surgical treatment, it becomes possible to improve the general condition of the patient and prolong his life. But depending on the pathology, there are different heart operations, which differ in their technique.

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Operations classification

Cardiac surgery is aimed at the treatment of cardiac pathologies through indirect or direct effects on this organ. There are such types of heart operations:

Closed, while the heart itself is not affected. Such operations are performed outside the heart, so they do not need to use special equipment, with the exception of classical surgical instruments. The cavities of the heart remain closed, hence the name of this category.
Open, they require opening the cavities of the heart, which requires the use of special equipment, such as a heart-lung machine. At the time when such a surgical intervention is performed, the heart and lungs are not functioning, which allows the specialist to work with a stopped heart.
X-ray surgery, in which special catheters and devices attached to them are used, they are inserted into the cavity of the heart or the lumen of the vessel to correct the defect. The progress of such an operation is controlled using the monitor screen.

In addition, the types of surgical interventions in cardiac surgery are classified according to the patient's condition and type of defect, as well as the approach to treatment.

According to the patient's condition and the type of defect, there are:

Emergency operations - when you need to act immediately after the diagnosis has become clear, otherwise the pathology threatens the patient's life.
Urgent - they do not require a lightning-fast reaction and a quick start of action. They are prepared for several days, but not longer, due to the high risks of complications or death.
Planned - interventions, the implementation of which is desirable, but not essential in the near future. They are prescribed by surgeons after consultation with patients.

Depending on what approach requires surgical treatment:

Radical - they are aimed at the complete elimination of vices.
Palliative - they are additional or auxiliary, their goal is to improve the patient's condition or prepare him for a radical intervention.

RF ablation

Such surgical intervention as radiofrequency ablation refers to X-ray surgical procedures. It is carried out to improve the condition of the patient suffering from heart failure and arrhythmia, and is characterized by low rates of side effects and complications.

Manipulations during the operation are carried out with special catheters, which are introduced to the patient under local anesthesia. The place of introduction of the catheter, remote from the heart itself, therefore, local anesthesia is carried out at the site of the future introduction of the catheter. In most cases, it is injected into the inguinal vein or femoral artery. After entering the organ, the catheters give electrical impulses to restore the heart rhythm.

Due to such a supply of impulses that eliminate a small area of cardiac tissue that causes pathological excitation of the myocardium, the technique received a second name - cauterization of the heart.

Valve prosthetics

Prosthetic heart valves are used when a valve is insufficiency or stenosis, which interferes with the normal passage of blood through it. Valve replacement can be performed during open surgery, endovascular or mini-access.

In the first case, the patient under general anesthesia is treated with the anterior surface of the chest, the sternum is dissected longitudinally, and the pericardial cavity is opened. To disconnect the heart from blood circulation, the patient is connected to a heart-lung machine, and the myocardium is systematically treated with cold saline during the entire operation in order to avoid its hypoxia.

To install the prosthesis, a longitudinal incision is made, opening the cavity of the heart, the modified structures of the valve are removed, it is replaced with an artificial one, and the myocardium is sutured. After that, the surgeon "starts" the heart with an electrical impulse or by performing a direct heart massage, and turns off the heart-lung machine.

After examining the postoperative view of the heart, pericardium and pleura, blood is removed from the cavities and the surgical wound is sutured in layers.

With endovascular surgery, there is no need to "disconnect" the heart from blood circulation. It is carried out through the leg, namely by introducing a catheter with implantable valves into the femoral artery or vein. After fragments of the damaged valve are destroyed and removed, a prosthesis is put in its place, which straightens itself, having a flexible stent frame.

If the option with a mini-access was chosen, then the surgeon makes an incision 2-5.5 cm long on the anterior wall of the sternum in the area of the projection of the apex of the heart. Then, through the apex of the heart, a catheter is inserted into the organ, advancing it to the affected valve, and replacing it.

In the case of valve replacement, there are several types of implants:

Mechanical - they are made of metal or plastic. When choosing such an implant, the patient in the future will need to constantly take blood thinners.
Biological - they consist of animal tissues and do not require further use of drugs, but after a few decades they need to be replaced.

Installing a pacemaker

In the event that the patient suffers from heart failure, cardiomyopathy and cardiac arrhythmias, the specialist may prescribe a minor operation to install a pacemaker.

The technique for performing such an operation is simple. On the right or left under the left clavicle, local anesthesia is performed with novocaine or lidocaine, after which an incision is made in the skin and subclavian vein to insert a conductor into it, and through it into the superior vena cava and into the heart - an electrode. When the tip of the electrode enters the cavity of the right atrium, the doctor chooses a convenient place for optimal stimulation of the heart muscle, during the search he constantly records ECG changes. When a place is found, the electrode is fixed in the myocardial wall from the inside with the help of antennae or a corkscrew-like attachment. After fixation, it is required to hem a titanium case under the patient's arm, which is installed in the thickness of the pectoral muscle on the left. The wound is sutured and an aseptic bandage is applied.

Coronary artery bypass grafting

Coronary artery bypass grafting is a common heart surgery. It is prescribed when atherosclerotic plaques accumulate on the inner walls of the coronary vessels that feed the heart, disrupting blood flow. In addition, indications can be:

Stable angina 3-4 functional class.
Acute coronary syndrome.
Acute myocardial infarction within the first 4–6 hours of onset of pain.
Severe ischemia without pain.

Before the operation, the patient is intravenously administered sedatives and tranquilizers, and the intervention itself is carried out under general anesthesia. Operative access is done by dissection of the sternum or from a mini-access, making an incision in the intercostal space on the left in the area of the projection of the heart. Manipulation can be carried out both with the connection of the patient to the heart-lung machine, and without it.

The aorta is clamped and connected to the machine, then a vessel is isolated, which will become a bypass. This vessel is brought to the affected coronary artery and its other end is sutured to the aorta. As a result, from the aorta, bypassing the area affected by plaques, the blood will go to the coronary arteries without difficulty.

Depending on how many arteries supplying the heart are affected and at what intervals, the number of shunts can vary from 2 to 5.

When the shunts are fixed, metal staples are applied to the edges of the sternum, soft tissues are sutured and an aseptic dressing is applied. In addition, drainage is removed from the pericardial cavity so that there is an outflow of hemorrhagic fluid.

Operations Glenn and Ross

The Glenn operation is otherwise known as a bidirectional cavopulmonary connection. In this case, anastomosis of the upper part of the superior vena cava with the right pulmonary artery is performed according to the "end to side" principle.

Ross surgery is the replacement of a patient's damaged aortic valve with his pulmonary valve, and the removed pulmonary valve is replaced with a prosthesis.