Objective To observe the clinical efficacy of sniffing agents of resuscitative aromatic herbs combined with nimodipine in treating cerebral vasospasm（ CVS） in patients with traumatic subarachnoid hemorrhage（ t SAH）.Methods Totally 60 t SAH patients were randomly divided into control group

sniffing agent group

nimodipine group

and combined treatment group

with 15 cases in each. Each group was given hemostasis

dehydration

and symptomatic and supportive treatments. Meanwhile

the sniffing agent group was added with sniffing agents of resuscitative aromatic herbs for 3- 5 min each time

3- 5 times per day; the nimodipine group was added with 10 mg of nimodipine through continuous intravenous pump daily; and the combined treatment group was added with both the the sniffing agents and nimodipine together. The course lasted for 10 days. At the time of admission and on day 3

5

7

9 and 11 after admission

the examination of transcranial Doppler ultrasound was conducted to observe the average flow velocity of the middle cerebral artery

and in month 3

the positive signs of postcerebrotraumatic syndrome were detected. Results Compared with the control group

the cerebral blood flow velocity in the sniffing agent group

nimodipine group and combined treatment group on day 5 was significantly improved（ P < 0. 05）. The combined treatment group had the best results in blood flow velocity improvement among the groups（ P < 0. 05）

while there was no significant difference in the improvements between the sniffing agent group and nimodipine group had（ P >0. 05）. Compared with the control group

there were much less patients with positive signs in the sniffing agent group and combined treatment group（ P < 0. 05）

especially in the combined treatment group（ P < 0. 05）. Conclusion The sniffing agents of resuscitative aromatic herbs combined with nimodipine could not only reduce the severity of CVS in t SAH patients

but improve their prognosis.