Troyanova-Trendelenburg Test

Troyanoff-Trendelenburg test

The Troyanov-Trendelenburg test is a method for studying the patency of the veins of the lower extremities and pelvis. It was proposed by the Russian surgeon Alexei Alekseevich Troyanov and the German surgeon Friedrich Trendelenburg independently of each other at the end of the 19th century.

The essence of the test is as follows: the patient lies on his back, raising the pelvis at an angle of 45 degrees. This is achieved using a special Trendelenburg chair or by placing a bolster under the sacrum. This position leads to a redistribution of blood from the lower extremities towards the heart.

Then a tourniquet is applied to the thigh, blocking the superficial veins. With normal patency of the deep veins of the lower extremities and pelvis, the veins should be filled above the tourniquet. If the veins do not fill, this indicates their obstruction.

The Troyanov-Trendelenburg test is a simple and informative method for diagnosing varicose veins and deep vein thrombosis. It is widely used in vascular surgery and phlebology.



The Troyanov-Trendelenburg (TT) test is a clinical test of airway patency. This test is used to diagnose acute respiratory dysfunction and differential diagnosis of stenosis of the upper and lower respiratory tract, as well as to evaluate the effectiveness of treatment for these diseases. Blood sampling, Trojan and Trendelenburg samples are considered one of the most accurate methods for determining oxygen in the blood and signs of tissue viability.

An important advantage of this test is that it is based on accurate calculations of the volume of dosed oxygen inhalation over a certain time. These indicators represent an objective picture of the patient’s oxygen starvation. The difference between measurements of healthy and pathologically altered tissue allows the doctor to make the correct diagnosis.

Therefore, the TT test is one of the most highly informative ways to determine lung diseases for making an accurate diagnosis, and its results have a significant impact on predicting changes in the patient’s condition.