A Cross-sectional study of anatomical variations in the splenic artery branches
Journal Title: Applied Physiology and Anatomy Digest - Year 2018, Vol 3, Issue 1
Abstract
Background: The knowledge of branching pattern of splenic artery, different levels of its division and their measurements, especially lobar artery, segmental artery, trabecular artery and polar artery is very important for surgeons and radiologists to perform devascularisation of particular part of the spleen to perform partial splenectomy. Therefore, present study was started with objectives to explore the origin, course, branching pattern of splenic artery into lobar artery, segmental artery and polar artery. And to compare our findings with the previous studies. Material and method: The present study was carried out on 30 embalmed cadavers using 10% formalin solution at S N Medical College Jodhpur for the duration of 2 years. The splenic artery was exposed with standard dissection techniques. The origin of splenic artery, type of course of the splenic artery, branching pattern of splenic artery trunk, lobar artery, segmental artery and trabecular artery, percentage of occurrence of segmental artery and polar artery was explored. Then length of the trunk of splenic artery, lobar artery, segmental artery and trabecular artery were measured. These findings were compared with the previous literature. Results: All the specimens the splenic artery was arising from coeliac trunk. Specimens showing supra-pancreatic course were 83.33 % and 16.66 % specimens showed retro- pancreatic course of splenic artery. 26.6 % specimens showed only superior polar artery and 16.6 % specimens showed both polar arteries.Splenic artery trunk was trifurcated 56.66% specimens and bifurcated in 43.33% specimens. Lobar artery was bifurcated in 80% specimens, trifurcated in 16.66% and non furcated 3.3% of specimens. The segmental artery was bifurcated in 93.33% and trifurcated in 6.66% of specimens. In 40% specimens we found 6 segmental arteries supplying the spleen, 36.66% specimens had 4 segmental arteries. The unique observations of present study were that in one spleen we observed 2 inferior polar arteries along with superior polar artery. One inferior polar was type 1 and another was type 2 while in one spleen we observed 2 superior polar arteries, both type 2. Conclusion: The findings of our study have added the knowledge on variations in the course, branching pattern, measurements of splenic arteries and its branches. This information is helpful not only to anatomist but also to a surgeon and radiologist to minimize complications related to partial splenectomy procedures.
Authors and Affiliations
Shital S. Maske, Sushma K. Kataria
Keywords
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