How is the test Valsalva. What is a Valsalva maneuver?
Medical tests and research do not come to us from nowhere. Before becoming public property, they undergo a lot of tests and checks, and only then begin to serve people for the diagnosis of various diseases. The Valsalva maneuver is not as popular as, for example, CBC. This test is used for targeted diagnostics. Especially often make a test for varicose veins and some other diseases.
Valsalva maneuver - historical background
Otherwise, this test is called Valsalva voltage. This test is named after the well-known anatomist Antonio Maria Valsalva. Initially, the test was aimed at removing pus from otitis media from the middle ear. But today it is used by drivers, passengers of airplanes, doctors in the treatment of varicose veins and other diseases. The method consists in the fact that a person inhales by force, subject to the closure of the mouth and nose. Often this test is assigned along with other methods of examination.This is done for the purpose of making a correct and accurate diagnosis. The sample is informative when used with ultrasound and an electrocardiogram.
How is this method used for varicose veins?
Medical research for varicose veins begins with a medical examination, palpation and anamnesis. In addition to these methods, you may need a Valsalva maneuver, which allows you to determine the pathology of the vessels and the efficiency of the valve apparatus in the venous system.
At the first examination, the phlebologist determines the presence of “asterisks”, reddening nodes and other changes. After the initial examination, this specialist often prescribes an ultrasound of the veins, which is a safe and painless diagnostic method, helping the doctor to assess the general condition of the blood vessels and detect the presence of blood clots. You may need additional testing with:
- deep research method - ultrasound scan (color duplex scanning);
- studies of the direction of blood flow, speed of blood flow, blood pressure and volume - USGD (Doppler), this method provides an opportunity to see the structural changes in the walls of blood vessels;
- USAS (ultrasound angioscanning);
- three-dimensional X-ray - spiral CT (computed tomography);
- phlebographic studies;
- laboratory (blood test, which is very important) and other studies.
When the Valsalva test is performed, the pressure in the arteries (BP) and the frequency of contractions of the heart muscle (HR) are measured for a certain time. In this case, the patient must lie down (take a horizontal position) and breathe in through the tube to which the pressure gauge is attached. It is forbidden to take him outside the hospital due to a possible sharp decrease in pressure in the heart. Through this study, you can see a picture of the expanded diameter of the veins, as well as to understand whether there is a reflux.
Much depends on the correctly collected history, so the doctor carefully examines the patient, ascertains the heredity, past diseases, whether there are problems with the endocrine system, as well as living conditions, nutrition, work. For women, information about pregnancy and childbirth is important.
Application of the method for varicocele
In men, ovarian and spermatic cord varices may develop. This disease is called varicocele. It is the most diagnosable among men.The disease occurs in three stages. When using the Valsalva method, the doctor has the opportunity to see pathological changes even during a routine examination (age does not matter). Such a diagnosis will make it possible to detect the presence of a problem, even in the absence of any symptoms. The doctor palpates the ovaries to reveal or, conversely, state the absence of varicose veins. To identify the true state of the ovarian vein system, the Valsalva test for varicocele is done while standing and lying, while the doctor examines the veins and makes a comparison.
Features of the ultrasound with a sample of Valsalva
Ultrasound is also an informative diagnostic method. With it, you can examine almost any human organ. If the Valsalva test, ultrasound are carried out together, then the patient will definitely need to stand. First, the doctor examines the patient in general. It determines the thickness of the veins and their consistency. After a general examination, the patient, at the request of the doctor, strains the muscles and inflates the abdomen. If varicose veins are present, the doctor observes an increase in the vessels that have been changed due to the lesion and reveals soft elastic nodes.During the ultrasound, the Valsalva maneuver makes it possible to determine how the blood flow is disturbed in the opposite direction, and, of course, the varicose veins.
What does a positive test mean?
In the circulatory system there are venous valves - a kind of "locks" that close when blood passes through them, and do not allow it to go back. When the "locks" are faulty, the blood goes down and stagnates there. If the test Valsalva positive, then there is a lack of valves. When registering a reverse blood flow, the doctor diagnoses a deficiency in the operation of the valves of the superficial vessels. According to the results of the medical test, further manipulations or drug therapy are prescribed.
Valsalva test negative - what is it?
But the results of this survey can be not only positive, but also with a minus sign. If the Valsalva test for varicose veins is negative, then there are no abnormalities in the veins under study. The patient may rejoice in this outcome of the examination.
What diseases is this test used for?
This medical test can be used not only for varicose veins.There are certain norms of this test for various diseases. She is often appointed in the following cases:
- if it is necessary to diagnose some types of tachycardia, it is performed together with an ECG;
- the test is carried out, if it is necessary to evaluate the performance of the function of the valve apparatus of the veins in the legs, it is also carried out not one, but together with the Doppler study;
- it is also used when it is necessary to determine the patency of the patient's auditory tubes.
In medicine, there is the concept of Valsalva maneuver and reception. They need to be distinguished, since the sample is appointed by a specialist for examination and formulation of a specific diagnosis. Most often, it does not even go away on its own, but with some other study. Reception of Valsalva is necessary when eliminating unpleasant sensations or conditions, for example, with a sharp drop in pressure, height, heart palpitations.