Rokitansky-Aschoff Sinus

The Rokitansky-Aschoff sinus is an anatomical structure of the heart, which is a formation of connective tissue in the wall of the atria.

The sinus got its name in honor of two outstanding pathologists - the Austrian Karl von Rokitansky and the German Ludwig Aschoff, who made significant contributions to the study of the structure and diseases of the heart.

Rokitansky in 1842 first described special thickenings in the area of ​​​​the entrance of the vena cava into the atria and called them “sinuses”. Later, Aschoff in 1901 studied these formations in detail and discovered that they consist of dense connective tissue.

Today it is known that the Rokitansky-Aschoff sinus plays an important role in conducting the electrical impulse that triggers atrial contraction. In addition, due to its rigid structure, the sinus ensures the strength of the places where the vena cava enters the atria and prevents their stretching and deformation. Thus, the Rokitansky-Aschoff sinus is a significant anatomical landmark of the heart, named after outstanding scientists.

The Rokitansko-Aschoff sine wave is a binary gradation scale in the field of blood pressure research using the tetrachord table method. Heart rate is measured as the ratio of the height of blood pressure to the distance between direct BP and BP, lying within the normal wave size (at these moments the value of blood pressure is 90 mm Hg), mhP. Without knowing the maximum value of blood pressure and hemodynamic parameters during pauses (heart rate, duration of inspiration and expiration), it is impossible to calculate arteriopulmonary resistance based on data from oscillographic recording devices, because amplitude of their signal during deep