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Objective:To estimate the frequencies of medical X-ray diagnositic examinations and analyze their distribution in Huai′an City.Methods:Stratified random sampling was used to select 2 tertiary hospitals including 1 general hospital and 1 MCH hospital, 4 secondary hospitals, 20 primary and unclassified hospitals to investigate medical X-ray examination frequencies in the 26 hospitals in 2017.Results:The average number of X-ray diagnostic equipment were 13.5 pieces in tertiary hospitals, 7.3 in second-level hospitals and 1.6 in primary and ungraded hospitals. The fraction of imported equipment accounted for 85.2%, 69.0% and 9.4%, respectively. The higher the hospital level, the greater the proportion of equipment with five years of service history. The number of examinations in 2017 in the 26 hospitals were X-ray photography 350 221, fluoroscopy 71 597, CT 327 404, dental 23 820 and breast 12 849, respectively. The number of examinations per 1 000 population were estimated to be 444.22 by conventional X-ray and 236.40 by CT.Conclusions:The frequency of conventional X-ray examinations in the city is slightly lower than the average level in Jiangsu province in 2016 and the CT examination frequency is roughly same as in Jiangsu province.
ABSTRACT
Objective To analyze the risk factors of post-ERCP pancreatitis (PEP) and to evaluate the relationship between cannulation time and PEP.Methods The data of cannulation time in 1 625 patients who underwent ERCP from 2010 to 2012 were retrospectively studied.The risk factors associated with PEP were analyzed by univariate and multivariate Logistic regression analysis.The effect of different cannulation time on PEP was evaluated.Results The incidence of overall PEP was 4.6％ (75/1 625) including 4.1％ (67/1 625)of mild and 0.5％ (8/1 625)of moderate-to-severe.Univariate analysis revealed that diabetes mellitus (P =0.02),choledocholithiasis (P =0.02),malignant biliary stenosis (P =0.007),duodenal stenosis (P =0.029),precut (P＜0.01),cannulation time ≥ 8 min (P＜0.01),blood platelet count ≥ 180× 109/L(P =0.089),alkaline phosphatase ≥ 120 U/L (P =0.083) and total bilirubin ≥ 17.1 μmol/L (P =0.094)were associated with PEP.Multivariate analysis revealed that precut (OR=1.93,95％CI:1.10-3.39,P=0.022),cannulation time ≥8 min (OR =3.50,95％CI:2.00-6.13,P＜0.01) and duodenum stenosis (OR=2.92,95％CI:1.08-7.86,P=0.034) were independent risk factors of PEP.Within 30 min of cannulation,longer cannulation time was accompanied with higher PEP rate.Conclusion The cannulation time is an independent risk factor of PEP.Overall PEP is increased when cannulation time is more than 8 min.