Objective To investigate the effect of sodium nitroprusside sustained release on cognitive function, S-100βprotein and VILIP-1 in pituitary tumor surgery patients.Methods 156 cases of pituitary tumor patients were selected and divided into two groups according to random number table method,78 patients in each group.All patients underwent general anesthesia induction,the experimental group treated with 0.5~6 μg ( kg· min) infusion of sodium nitroprusside induced hypotension by micro pump at the beginning of operation.MMSE was used to determine the cognitive function of 2 groups of patients 1 day before operation and 2 days after operation,S-100βand VILIP-1 content were determined by ELISA before anesthesia,after surgery,and 0,12,24,48 h after operation.Results There was no statistical significance between the 2 groups in the incidence of postoperative cognitive dysfunction.Compared with control group, the operation time, bleeding volume and the recovery time of the experiment group were lower(P<0.05).S-100βprotein and VILIP-1 showed increased at first and then decreased at the peak of 24h;compared with the normal group, the levels of S-100βprotein and VILIP-1 of the cognitive impairment were higher ( P <0.05 ).Compared with the control group, the levels of S-100βprotein and VILIP-1 of the experiment group were lower(P <0.05).Conclusion Sodium nitroprusside sustained release controlled hypotension can reduce the level of cognitive disorder, patients of S-100βprotein and visinin-like protein 1 and has certain directive significance to the clinical.

Objective To investigate the relationship between clinical efficacy and cage subsidence,and to identify the risk factors of cage subsidence after transforaminal lumbar interbody fusion (TLIF) in treating single level lumbar disc herniation and lumbar spondylolisthesis.Methods According to the inclusion/exclusion criteria,a series of 107 patients who underwent TLIF with polyetheretherketone (PEEK) cage in our department were evaluated retrospectively between May 2011 and May 2014.Intervertebral space height and segmental angle were measured on the preoperative and postoperative iconography according to the metrical software.All patients were divided into cage subsidence group (cage subsidence ≥ 2 mm) and cage non-subsidence group (cage subsidence ＜ 2 mm) based on the threshold value of intervertebral space height via X-ray.The Oswestry disability index (ODI) and visual analogue scale (VAS) was used to evaluate the clinical efficacy.Univariate analysis and logistic regression analysis were performed to identify the potential risk factors.Results Of all 107 patients,thirty-six patients (15 males and 21 females)aged 52.61 ± 13.82 years were divided into in the cage subsidence group with an average follow-up duration 26.33±7.66 months,seventy-one patients aged 53.80± 14.94 years,28 males and 43 females in the cage non-subsidence group,were followed-up for 23.82±8.95 months.There was no significant difference between cage subsidence group and cage non-subsidence group in gender,age,course of disease and time of follow-up (P＞ 0.05).The average 2.79±0.78 mm (range 2.02-5.53 mm) subsidence was observed in cage subsidence group.The preoperative intervertebral space height,postoperative intervertebral space height,postoperative segmental angle were related to cage subsidence by univariate analysis (P ＜ 0.05).Postoperative intervertebral space height [OR=1.864,95％CI(1.207,2.879) mm] was the risk factor of cage subsidence by logistic regression (P ＜ 0.05).There was no significant difference between cage subsidence group and cage non-subsidence group in ODI and VAS (P ＞ 0.05).Conclusion Cage subsidence is affected by the preoperative intervertebral space height,postoperative intervertebral space height,and postoperative segmental angle.Postoperative intervertebral space height is the independent risk factor of cage subsidence.Over distraction of intervertebral space height could increase the risk of cage subsidence.

OBJECTIVE To provide reference for the subsequent landing of national medical insurance negotiated drugs （referred to as “national negotiated drugs”） at the provincial level. METHODS By reviewing the data publicly released by the official websites of National Healthcare Security Administration and the Healthcare Security Administration of Zhejiang Province， combined with policy documents， the descriptive analysis was conducted on the number of tertiary medical institutions， the actual allocation of national negotiated drugs， the availability rate of national negotiated drugs， the allocation rate of national negotiated drug varieties， and the allocation rate of medical institutions of various cities in Zhejiang province. The Spearman rank correlation test was used to analyze the correlation between the number of types of national negotiated drugs equipped in tertiary medical institutions in Zhejiang province and the per capita disposable income， the number of tertiary medical institutions equipped with national negotiated drugs， and the implementation time of disease diagnosis-related grouping （DRG） of various cities in Zhejiang province. RESULTS As of the first quarter of 2022， 135 tertiary medical institutions in Zhejiang province were equipped with a total of 261 types of national negotiated drugs， accounting for 94.91% of the 2021 edition of the National Negotiated Drugs Catalogue （275 types）. The allocation rates of Goserelin acetate sustained-release implant， Sacubitril valsartan sodium tablets， Alteplase for injection and other varieties were at high level， and the types of national negotiated drugs equipped were highly coincident with the top 10 causes of death with disease of urban and rural residents in Zhejiang province. The tertiary medical institutions in Hangzhou had the most types of national negotiated drugs， with 230 types， while Quzhou had the lowest， with only 34 types； allocation rate of national negotiated drugs in medical institutions of Zhoushan was the highest （100%）， while that of Lishui was the lowest （57.14%）. The types of national negotiated drugs equipped were positively correlated with per capita disposable income in various cities and the number of tertiary medical institutions equipped with national negotiated drugs （P＜0.01）， and there was no significant correlation with the length of implementation of DRG （P＞0.05）. CONCLUSIONS mail：lanyao@mails.tjmu.edu.cn The landing of national negotiated drugs in Zhejiang province is generally good， with a high rate of equipping tertiary medical institutions with national negotiated drugs and a high rate of equipping drug varieties. Therefore， it is recommended that the provincial implementation of national negotiated drugs should be multi-faceted， and policy-making departments should adopt a dual-channel of “unbundling” and “driving” to smooth the drug chain into hospitals. The health insurance sector should improve the “dual channel” management mechanism to share the pressure on hospitals to use drugs. At the same time， it should also improve the multi-level medical security system and raise the level of reimbursement of medical insurance for national negotiated drugs.