EVALUATION OF NORMAL INFERIOR VENA CAVA DIAMETERS IN SAUDI POPULATION USING COMPUTED TOMOGRAPHY
Dr. Ahmad Abduljabar*, Dr. Mohammad Wazzan, Dr. Sultan Mana Alamri and Dr. Alshimaa Ahmed Adas
Knowledge of the normal inferior vena cava (IVC) diameter among each particular population is essential for critical care physicians and surgeons. To date, there is a lack of published data about the normal IVC diameter in Saudi Arabia and, therefore, the aim of this study to evaluate the normal IVC diameter in Saudi population and to assess its correlation with demographic parameters. Methods: A retrospective chart review study was conducted on 400 patients who had helical computed tomography (CT) scans in King Abdul-Aziz University Hospital in Jeddah, Saudi Arabia during the period 2015-2017. Patients with cardiac diseases, hepatitis, or hepatic cirrhosis were excluded. Results: The mean age of the patients was 51.8 ± 16.9 years. Females constituted 60% of the recruited patients. The IVC diameter ranged from 7 to 26 mm measured 3 cm above the bifurcation into an iliac vessles, 12 to 37 mm measured 2 cm above the renal veins and 8 to 27 mm at sagittal views. There was no statistically significant difference between males and females as regards the IVC diameter at different locations (p>0.05). The spearman coefficient correlating age and IVC diameter among males at 3 cm above bifurcation at AP diameter, 3 cm above bifurcation at transverse diameter and 2 cm above renal vein was r=0.77, 0.87, and 0.82, respectively. Conclusion: The mean IVC diameter among the Saudi population is comparable with literature study. No significant difference between males and females was revealed, but there is a strong positive correlation between age and IVC diameter among men.
Keywords: Computer tomography, CT, diameter, inferior vena cava, Saudi population.
[Full Text Article]