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Year : 2021  |  Volume : 17  |  Issue : 4  |  Page : 537-541

Measurement of hiatal surface area and other hiatus oesophageal diameters at computed tomography imaging in patients with gastroesophageal reflux disease and its relationship with hiatal hernia

1 Department of Radiology, Istanbul Kartal Dr. Lutfi Kirdar City Hospital, Istanbul, Turkey
2 Department of General Surgery, University of Health Sciences Derince Training and Research Hospital, Kocaeli, Turkey
3 Department of General Surgery, Yeditepe University Faculty of Medicine, Istanbul, Turkey

Correspondence Address:
Dr. Emrah Karatay
Department of Radiology, Istanbul Kartal Dr. Lutfi Kirdar City Hospital, D-100 Güney Yanyol, No: 47 Cevizli Mevkii, Kartal 34865, Istanbul
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmas.JMAS_175_20

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Background: The oesophageal hiatus is a long and oblique opening in the diaphragm where the thoracic section of the oesophagus passes into the abdomen. Enlarged hiatal surface and insufficiency are considered to be associated with gastroesophageal reflux disease (GERD) and hiatal hernia (HH). In this study, we aimed to retrospectively evaluate the relationship and the presence of GERD with HH by performing hiatal surface area (HSA) and other hiatal measurements at the thorax and abdominal computed tomography (CT) images in cases without any intra-abdominal or oesophageal surgery history. Patients and Methods: A total of 192 patients of GERD+ and 173 cases with GERD− as a control group were included in the study. In CT examinations of 365 patients included in the study, measurements and comments were made by an experienced radiologist in abdominal radiology. In CT scans, the following were evaluated for each case; HSA, hiatus anterior–posterior (A-P) diameter, hiatus transverse diameter, and HH types. The HSA measurement was made with the freehand region of interest in the picture archiving and communication system. Results: A total of 365 cases were included in this study; there was a significant difference between the median HSA, A-P diameter, and transverse diameter measurements between GERD− and GERD+ groups (P < 0.001). A statistically significant difference was found between the presence of GERD and HH types (P < 0.001). Conclusions: CT imaging helps investigate the presence of HH at GERD+ patients. In addition, pre-operative valuable data can be obtained from the detection of HH types and HSA measurements in cases with HH.


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