[Comparative study on the clinical features of familial clustered and sporadic vestibular migraine].

To compare and analyze the clinical features of family clustered vestibular migraine（FCVM） and sporadic vestibular migraine（SVM）. A total of 118 patients with vestibular migraine were selected and divided into FCVM group（66 cases） and SVM group（52 cases）, and the clinical features such as age, the form of symptoms, provoking and relieving factors, audiological manifestations, sequelae and complications, were compared and analyzed. The onset of headache in FCVM group was earlier than that in SVM group （[23.88±11.45] years old and [28.77±11.85] years old, χ²=2.267, =0.025） with a longer interval between headache and vertigo attack （[13.11±10.08] years old and [8.50±9.26] years old, χ²=2.554, =0.012）.Patients with positional vertigo in the FCVM group were more than those in the SVM group （12[18.2%] and 0[0], χ²=3.171, =0.002）. Mental anxiety（<0.001）, neck stiffness（=0.028）, and concentration difficulties（=0.001） were more common in patients with FCVM at the end of the episode than in patients with SVM. Comorbid primary motion sickness combined was more common in FCVM group than in SVM group（49 cases[74.2%] and 25 cases[48.1%], χ²=2.906, =0.004）. The onset of FCVM is earlier and the prognosis is often poor. Primary motion sickness can be used as a reference for the early diagnosis of FCVM.