Morphological data of the superior vena cava predicted by multiple linear regression equations

Area of Science:

• Anatomy
• Medical Imaging
• Vascular Surgery

Background:

• Central venous catheterization is crucial for hemodialysis.
• Accurate anatomical knowledge of the central venous system is vital for safe and effective catheter placement.
• Variations in venous anatomy can complicate cannulation procedures.

Purpose of the Study:

• To investigate the spatial relationships of key venous structures relevant to central venous catheterization.
• To identify anatomical parameters influencing the angles of venous access for hemodialysis.
• To provide data supporting improved techniques for venous puncture and catheterization.

Main Methods:

• Study involved 70 human cadavers.
• Measurements focused on angles between the vertical axis and the superior vena cava (SVC), left and right brachiocephalic veins, and SVC circumference.
• Bivariate correlation and regression analyses were used to assess relationships with other anthropometric parameters.

Main Results:

• Significant linear correlations were found between venous angles and various thoracic measurements (e.g., distance between coracoid processes, thorax thickness, clavicular lengths).
• SVC circumference showed a linear relationship with the distance to the aorta.
• Specific anatomical parameters were identified as influential for cannulating the SVC, left brachiocephalic vein, and right brachiocephalic vein.

Conclusions:

• Multiple anatomical parameters influence the angles critical for successful central venous catheterization.
• These findings offer valuable guidance for optimizing intubation and cannulation procedures in hemodialysis.
• Understanding these spatial relationships can enhance the safety and efficacy of venous access.