THE LIFETIME MORPHOMETRY OF CARDIOESOPHAGEAL TRANSITION IN PATIENTS WITH HIATAL HERNIA

Abstract

With the development of X-ray technology and the advent of computed tomography, it became possible not only to accurately diagnose hiatal hernia, but also to conduct morphometry of all its constituent anatomical structures in different projections to use the data obtained at the stage of preoperative planning for its surgical treatment. Currently, due to the improvement in the quality of diagnostics, there is an increase in the detection of patients with this pathology, along with this, the question of choosing the most rational method of treatment is acute. The aim of the study was to study the computed tomographic anatomy of the structures of the cardioesophageal junction in patients with hiatal hernia. A retrospective study of a series of computed tomograms in 53 patients with hiatal hernia, performed on a 64-slice Canon Aquilion Prime tomograph, was carried out. An assessment was made of the diameter of the distal esophagus, the size of the hernia orifice, and the deviation of the axis of the esophagus at the level of the hernial orifice relative to the diaphragm in two planes. As a result of the analysis, it was found that in 79% of cases the esophagus was located on the right and behind the hernial sac, in 13% - behind and in the middle, in 8% - on the left and behind. It was revealed that the diameter of the unchanged part of the esophagus above the hernial sac was 20.9±3.71 mm (min – 15.7 mm, max – 30.2 mm). The dimensions of the hernial orifice varied within 31.21±5.23 mm in the frontal plane (min - 24.7 mm, max - 42 mm) and 32.66±4.36 mm in the sagittal plane (min - 26.2 mm, max - 39.1 mm). The deviation of the axis of the esophagus in the frontal plane was 63.53°±16.74 (min - 19.6°, max - 92.3°). The deviation of the axis of the esophagus in the sagittal plane was 74.12°±21.31 (min - 36.3°, max - 118.1°). Thus, due to the variability in the structure and location of the anatomical structures of the cardioesophageal zone in patients with hiatal hernia, it is necessary to take into account all of the above indicators, including the presence or absence of large branches of the greater omentum in the hernial sac, body type, gender, age of patients, which serves an integral part of preoperative planning of surgical treatment, optimization and reduction of complications, as well as determining the safest method of its surgery.