Document Detail

Classification of the Superior Petrosal Veins and Sinus Based on Drainage Pattern.
MedLine Citation:
PMID:  24561869     Owner:  NLM     Status:  Publisher    
BACKGROUND:: The increasing number of reports of complications after sacrificing the superior petrosal veins, the largest veins in the posterior fossa, has led to a need for an increased understanding of the anatomy of these veins and the superior petrosal sinus into which they empty.
OBJECTIVE:: To examine the anatomy of the superior petrosal veins and their size, draining area, and tributaries, and the anatomic variations of the superior petrosal sinus.
METHOD:: Injected cadaveric cerebellopontine angles (CPAs) and 3-D-multifusion angiography images were examined.
RESULTS:: The 4 groups of the superior petrosal veins based on their tributaries, course, and draining areas are: the petrosal, posterior mesencephalic, anterior pontomesencephalic, and tentorial groups. The largest group was the petrosal group. Its largest tributary, the vein of the cerebellopontine fissure, was usually identifiable in the suprafloccular cistern located above the flocculus on the lateral surface of the middle cerebellar peduncle. The medial or lateral segment of the superior petrosal sinus was absent in 40% of CPAs studied with venography.
CONCLUSIONS:: The superior petrosal veins and their largest tributaries, especially the vein of the cerebellopontine fissure, should be preserved if possible. Obliteration of superior petrosal sinuses in which either the lateral or medial portion is absent may result in loss of the drainage pathway of the superior petrosal veins. Preoperative assessment of the superior petrosal sinus should be considered before transpetrosal surgery in which the superior petrosal sinus may be obliterated.
Ken Matsushima; Toshio Matsushima; Yoshihiro Kuga; Yuji Kodama; Kohei Inoue; Hideyuki Ohnishi; Albert L Rhoton
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-20
Journal Detail:
Title:  Neurosurgery     Volume:  -     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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