Objective:To investigate the feasibility and safety of endovascular mechanical thrombectomy (EMT) combined with continuous intrasinus thrombolysis for the treatment of severe hemorrhagic cerebral venous sinus thrombosis (CVST).Methods:The clinical and imaging data of 5 consecutive patients with severe hemorrhagic CVST who received EMT combined with continuous intrasinus urokinase thrombolysis in Beijing Tiantan Hospital from March 2019 to February 2020 were retrospectively analyzed.Results:The average age of 5 patients was 39 years (range, 19-65 years). Two were males and 3 were females. Risk factors associated with CVST were identified in 3 patients. Four had more than two venous sinuses involved, with a total of 10 blood vessels affected by CVST. The affected venous sinus thrombus burden was high, the lesion volume was large, and the clinical manifestations were severe. The average duration of heparin anticoagulation therapy before EMT was 2.3 d (range, 0.5-7 d), and the average duration of intrasinus thrombolysis was 64 h (range, 30-95 h). After treatment, 1 vessel was completely recanalized and 7 vessels were partially recanalized. Four patients who achieved recanalization had good long-term clinical outcomes (modified Rankin Scale score: 0-2 at 3 months, 0-1 at 1 year). One patient failed to achieve recanalization and underwent decompressive craniectomy due to intracranial hypertension, had residual hemiparesis at 1-year follow-up. No procedure-related complications occurred.Conclusion:EMT combined with continuous intrasinus thrombolysis is a potential treatment option for patients with severe hemorrhagic CVST.

Objective To investigate the correlation between incidence rate of tinnitus and noise exposure time,age,hearing condition in noise exposure workers.Methods A total of 1 985 noise exposure workers (age between 20～60 years old;working length between 1 ～30 years) in a large dockyard were randomly selected as the subject of this study with 1 831 male workers and 154 female workers in average 36.3±8.25 years old.The average noise exposure time was 9.1±6.50 years and pure tone threshold of final candidates in sound-proofed environment was evaluated (at 0.25～8 kHz).The subjects were divided into four groups according to the subjective tinnitus level:mild tinnitus,moderate tinnitus,severe tinnitus and no tinnitus to analysis the correlation among incidence rate of tinnitus and noise exposure time,age,hearing condition,etc.Results Among all 1 985 subjects enrolled the occurrence rate of tinnitus was 20.55％ (408/1 985),with 367 acquired mild tinnitus(89.95％),39 acquired moderate tinnitus (9.56％) and 2 for severe tinnitus (0.49％).Mild tinnitus and moderate tinnitus showed a multi-step raising according to noise exposure time.Mild tinnitus increased continually with age while moderate tinnitus showed an accumulation in age group over 55 years old.Female was less likely to be annoyed by tinnitus than male.Conclusion Tinnitus can be early warning of auditory damage by noise exposure;older male group with longer noise exposure time is more vulnerable to tinnitus.Tinnitus acquired in noise environment is more likely to be mild.