Objective Exploring the relationship between pain recurrence after percutaneous radiofre-quency thermocoagulation and the degree of trigeminal nerve atrophy and pontine angle in patients with primary trigeminal neuralgia(INT).Methods A retrospective analysis was conducted on 297 patients with INT admitted to Qingdao Haici Hospital Affiliated to Qingdao University(Qingdao Traditional Chinese Medicine Hospital)from January 2020 to December 2021.All patients received percutaneous radiofrequency thermocoagulation surgery in our hospital.They were followed up for 24 months,during which 56 patients experienced pain recurrence after sur-gery(recurrence group),while 241 patients did not experience postoperative pain recurrence(non-recurrence group).Results The length of the trigeminal nerve root,degree of trigeminal nerve atrophy,and the combined application of the two were used to draw ROC curves.The AUC values predicted for pain recurrence in INT patients after percutaneous radiofrequency thermocoagulation were 0.553,0.750,and 0.861,respectively.The results of the logistic regression model showed that shortened trigeminal nerve root length(OR=0.624,P=0.038),increased degree of trigeminal nerve atrophy(OR=2.257,P=0.000),multi vessel compression(OR=1.842,P=0.019),and severe baseline pain(OR=1.714,P=0.000)were independent risk factors for pain recurrence in INT patients after percutaneous radiofrequency thermocoagulation(P<0.05).Conclusions INT patients undergo thin-layer MRI scans before surgery,and the degree of trigeminal nerve atrophy has a higher predictive value for pain recur-rence after radiofrequency thermocoagulation.The length of trigeminal nerve roots and degree of trigeminal nerve atrophy are correlated with postoperative pain recurrence in patients.

BACKGROUND: There is limited data to comprehensively evaluate the epidemiological characteristics of multiple myeloma (MM) in China; therefore, this study determined the characteristics of the disease burden of MM at national and provincial levels in China. METHODS: The burden of MM, including incidence, mortality, prevalence, and disability-adjusted life years (DALYs), with a 95% uncertainty interval (UI), was determined in China following the general analytical strategy used in the Global Burden of Disease, Injuries, and Risk Factors Study 2019. The trends in the burden of MM from 1990 to 2019 were also evaluated. RESULTS: There were an estimated 347.45 thousand DALYs with an age-standardized DALY rate of 17.05 (95% UI, 12.31-20.77) per 100,000 in 2019. The estimated number of incident case and deaths of MM were 18,793 and 13,421, with age-standardized incidence and mortality rates of 0.93 (95% UI, 0.67-1.15) and 0.67 (95% UI, 0.50-0.82) per 100,000, respectively. The age-specific DALY rates per 100,000 increased to more than 10.00 in the 40 to 44 years age group reaching a peak (93.82) in the 70 to 74 years age group. Males had a higher burden than females, with approximately 1.5- to 2.0-fold sex difference in age-specific DALY rates in all age groups. From 1990 to 2019, the DALYs of MM increased 134%, from 148,479 in 1990 to 347,453 in 2019. CONCLUSION The burden of MM has doubled over the last three decades, which highlights the need to establish effective disease prevention and control strategies at both the national and provincial levels.
Humans ; Male ; Female ; Adult ; Aged ; Global Burden of Disease ; Quality-Adjusted Life Years ; Multiple Myeloma/epidemiology* ; Global Health ; Incidence ; Prevalence ; Risk Factors ; China/epidemiology*