Risk factor analysis of recurrence of benign paroxysmal positional vertigo after manipulative reduction / 中国综合临床

ABSTRACT

Objective To investigate the recurrence rate and recurrence risk factors of benign positional vertigo after manual reduction. Methods A total of 186 cases diagnosed with BPPV were selected as our subjects. Vertigo recurrence rate was calculated at 30 d,60 d,90 d after manual reduction. Risk factors for recurrence were analyzed using binary Logistic Regression. Results 172 cases diagnosed in BPPV patients completed 90 days follow-up. Vertigo recurrence rate was 8. 79%(16/182)in 30 days,17. 05%(30/176)in 60 days,and 22. 09%(38/172)in 90 days. The average age in recurrence patients was(59. 1 ± 10. 2)years old,significantly higher than the non-recurrent group( 47. 6 ± 7. 3 ). The recurrence rates in patients with complicated with hypertension,diabetes,hyperlipidemia,coronary heart disease were 57. 89%(22/38),60. 53%(23/38),73. 68%(28/38),39. 47%(15/38)respectively. Rise and turning neck are prone to recurrence,and recurrence rate were 16. 42%( 22/134 ),8. 21%( 11/134 ),9. 70%( 13/134 ) and 16. 42%(22/134). Recurrence rate of patients with manipulative reduction times ﹥10 times( reset multiple times before being cured)was 90. 90%( 10/11 ). Logistic regression analysis showed that the duration before manual reduction BPPV(OR=2. 631,95%CI 1. 082 -7. 572,P =0. 022)and the number of manual reduction ﹥10( OR=3. 107,95%CI 1. 205-7. 842,P=0. 018)after BPPV is manipulative reduction independent risk factor for recurrence. Conclusion Patients with BPPV in middle-aged and high seizure frequency have a high recurrence rate. Patients with BPPV complicated by hypertension,diabetes,hyperlipidemia,coronary atherosclerotic heart disease have the same higher recurrence rate. The rise and turn the neck often cause BPPV recurrence. The reduction and the number of manual reduction﹥10 are independent risk factors of recurrence of the BPPV.