OBJECTIVE:To establish the method for simultaneous determination of 9 common inorganic anions in Huanglian shangqing tablet. METHODS:The accelerated solvent extraction-ion chromatography was adopted. Inorganic anions were deter-mined by Ion Pac AS11-HC anion exchange column,protected by Ion Pac AG11-HC column and eluted by hydroxide potassium so-lution(gradient elution)at the flow rate of 1.2 mL/min. The column temperature was set at 30 ℃,elution time was 18 min,and sample volume was 25 mL. RESULTS:The linear ranges of fluorinion,formate ion,nitrite ion,bromide ion,nitrate ion,sulfate ion,oxalate ion and phosphate ion were 0.1-5 mg/L(r=0.9990-0.9999). The limits of quantitation were 0.020,0.078,0.030, 0.058,0.052,0.068,0.084,0.064,0.074 mg/L,and the limits of detection were 0.005,0.024,0.008,0.017,0.015,0.022, 0.026,0.020,0.021 mg/L,respectively. RSDs of precision,stability and repeatability were all lower than 4.0%;recoveries were 80.00%-125.08%(RSD ranged 0.97%-2.47%). CONCLUSIONS:The method is simple,precise,stable and repeatable,and can be used for 9 common inorganic anions in Huanglian shangqing tablet.

Objective: To study the clinical efficacy of microsurgical clipping treatment for intracranial aneurysm rupture and optimal timing. Methods: From January 2016 to December 2017, 80 patients with intracranial aneurysm rupture in Taizhou Enze Medical Center(Group) Hospital were randomly divided into the control group (24-72h after rupture) and the observation group (within 24h after rupture) according to the digital table, with 40 patients in each group.The pre- and intra-surgical re-rupture and surgical clipping, post-surgical complications, and clinical efficacy of 6-month follow-up in the two groups were observed and compared. Results: Compared with the control group, the incidence rate of pre-surgical re-rupture was significantly reduced in the observation group (0.0% vs.10.0%, χ²=4.21, P<0.05). Compared with the control group, the incidence rate of post-surgical complications was obviously reduced in the observation group (20.0% vs.42.5%, χ²=4.71, P<0.05). Compared with the control group, the excellent rate of treatment was significantly improved in the observation group (87.5% vs.65.0%, χ²=5.59, P<0.05). Conclusion The microsurgical clipping treatment can improve the clinical efficacy of intracranial aneurysm rupture and sooner surgery with better prognosis.

Objective:To investigate the influencing factors for lymph node metastasis and prognosis in early gastric cancer.Methods:The retrospective cohort study was conducted. The clinicopathological data of 1 011 patients with early gastric cancer who were admitted to the Zhejiang Cancer Hospital from January 2010 to December 2019 were collected. There were 561 males and 450 females, aged (58±11)years. All patients underwent radical resection of gastric cancer and the lymph node metastasis of each group was identified according to the pathological examination on patients' surgical specimens. Observation indicators: (1) lymph node metastasis in early gastric cancer; (2) influencing factors for lymph node metastasis in early gastric cancer; (3) influencing factors for prognosis in early gastric cancer. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the t test. Count data were described as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Comparison of ordinal data was analyzed using the non‐parameter rank sum test. Univariate analysis was conducted using the Log-Rank test and Logistic regression model, and multivariate analysis was conducted using the Logistic stepwise regression model and COX step-wise regression model. The Kaplan-Meier method was used to calculate survival rate and draw survival curve, and the Log-Rank test was used for survival analysis. Results:(1) Lymph node metastasis in early gastric cancer. The lymph node metastasis rate of 1 011 patients with early gastric cancer was 23.640%(239/1 011), in which the lymph node metastasis rate of patients with T1a stage gastric cancer was 11.883%(53/446), and the lymph node metastasis rate of patients with T1b stage gastric cancer was 32.920%(186/565). There were 239 patients with lymph node metastasis mainly concentrated in the first station, including 7 cases with No.1 lymph node metastasis, 11 cases with No.2 lymph node metastasis, 135 cases with No.3 lymph node metastasis, 59 cases with No.4 lymph node metastasis, 39 cases with No.5 lymph node metastasis, 91 cases with No.6 lymph node metastasis, 6 cases with No.7 lymph node metastasis, 8 cases with No.8 lymph node metastasis, 8 cases with No.9 lymph node metastasis and 6 cases with No.10 lymph node metastasis. Multiple lymph node metastases may exist in the same patient. For lymph node metastasis in different tumor sites, there were 4 cases, 2 cases and 1 case of lymph node metastasis in the No.2, 3 and 5 lymph node in patients with upper gastric cancer. There were 3 cases, 7 cases, 36 cases, 15 cases, 3 cases and 5 cases of lymph node metastasis in the No.1, 2, 3, 4, 5 and 6 lymph node in patients with middle gastric cancer. There were 4 cases, 97 cases, 44 cases, 35 cases and 86 cases of lymph node metastasis in the No.1, 3, 4, 5 and 6 lymph node in patients with lower gastric cancer. (2) Influencing factors for lymph node metastasis in early gastric cancer. Results of multivariate analysis showed that tumor diameter, tumor location, degree of tumor invasion, vascular thrombus, degree of tumor differentiation were independent factors influencing lymph node metastasis in early gastric cancer ( odds ratio=1.80, 1.49, 2.65, 5.76, 0.60, 95% confidence interval as 1.29-2.50, 1.11-2.00, 1.81-3.88, 3.87-8.59, 0.48-0.76, P<0.05). (3) Influencing factors for prognosis in early gastric cancer. All 1 011 patients were followed up for 43(range, 0-135)months, and the 3-year overall survival rate was 97.32%. Results of multivariate analysis showed that age >60 years and lymph node metastasis were independent risk factors influencing prognosis in early gastric cancer ( hazard ratio=9.50, 2.20, 95% confidence interval as 3.31-27.29, 1.00-4.87, P<0.05). Results of further analysis showed that the 3-year overall survival rate was 99.37% and 94.66% in patient with age >60 years and ≤60 years, respectively, showing a significant difference between them ( χ2=25.33, P<0.05). The 3-year overall survival rate was 95.42% and 97.92% in patients with and without lymph node metastasis, respectively, showing a significant difference between them ( χ2=5.69, P<0.05). Conclusions:The lymph node metastasis rate of early gastric cancer can reach 23.640%. Tumor diameter, tumor location, degree of tumor invasion, vascular thrombus, degree of tumor differentia-tion are independent factors influencing lymph node metastasis in early gastric cancer, age >60 years and lymph node metastasis are independent risk factors influencing prognosis.