Pattern of distribution of Labbé and Trolard’s anastomotic veins as a function of laterality and sex

an angiographic study

Abstract

INTRODUCTION: The superior (Trolard's) and inferior (Labbé's) anastomotic veins, responsible for communicating the middle cerebral vein to the superior sagittal and transverse sinuses, respectively, become important in the area of ​​neurosurgery, since they are high-risk veins. for injuries in surgical procedures because they are located in topographies of constant access. In the literature, the consequences of involvement of these veins during surgical procedures are shown, which include cerebral edema, venous infarction and hemorrhage, among other complications. OBJECTIVE: To investigate the distribution pattern of the anastomotic veins of Labbé and Trolard as a function of laterality and sex in cerebral arteriography exams. METHODS: This project was developed at the Faculty of Medicine of Olinda. This is a cross-sectional, observational and retrospective study. Twenty angiography exams were analyzed as initial quantitative, making this work a pilot study for analyzes with more significant samples later on. Arteriography exams with evaluation of venous drainage of the brain were included and cerebral arteriography exams that did not have the three incidences used in the exam were excluded. For data analysis, descriptive statistics were used, according to each proposed objective. RESULTS: Labbé's anastomotic vein was more prevalent on the right in females, while on the left it was more prevalent in males. The anastomotic vein of Trolard was more prevalent on the right in males, while on the left it was more prevalent in females. CONCLUSION: The present study described the distribution pattern of the anastomotic veins of Labbé and Trolard as a function of laterality and sex, relating the findings to potential complications secondary to iatrogenic venous injury, demonstrating the importance of knowing the anatomy of these vascular structures and their surgical implications.