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. 2022 Jan 31;7(3):222–236. doi: 10.1136/svn-2021-001308

Figure 5.

Figure 5

Cerebral venous circulation disturbance increased external jugular veins pressure, and NBP could decline the pressure in early stage. (A) External jugular veins’ pressure of difference time points of preoperation and postoperation each group. (B) Quantification of external jugular pressure. ¤¤P＜0.01, EJVO (immediately post-, 2 hours, 6 hours, 12 hours and 1 day after operation) vs EJVO (preoperation); ## P＜0.01, EJVO +MCAO (immediately post-, 2 hours, 6 hours, 12 hours, 1 day and 3 days after operation) vs EJVO +MCAO (preoperation); §§p＜0.01, EJVO +MCAO+ MCAO (immediately post-, 2 hours and 6 hours after operation) vs EJVO +MCAO+ NBP (preoperation); $p＜0.05, EJVO +MCAO+ MCAO (12 hours after operation) vs EJVO +MCAO+ NBP (preoperation); ∫∫p＜0.01, EJVO +MCAO+ NBP vs EJVO +MCAO in corresponding time points; ※※p＜0.05, MCAO vs EJVO in corresponding time points; &&p＜0.05, EJVO vs EJVO +MCAO in corresponding time points. EJVO, external jugular vein occlusion; MACO, middle cerebral artery occlusion; NBP, Dl-3-n-butylphthalide.