Objective To evaluate the therapeutic effect of CT/MRI image fusion and usual CT guided percutane-ous radiofrequency thermocoagulation of trigeminal semilunar ganglion.Methods The medical information of 88 patients diagnosed with primary trigeminal neuralgia were assembled.In accordance with different imaging guidance means,they were equally divided into the control group(trigeminal semilunar ganglion radiofrequency thermo-coagulation with CT guidance)and the fusion group(trigeminal semilunar ganglion radiofrequency thermocoagula-tion with assistance of CT/MRI image fusion technology)at random.The puncture time,intraoperative discomfort rate,preoperative,intraoperative and postoperative visual analogue scale(VAS)score,Barrow neurological insti-tute(BNI)pain score and postoperative complication rate were contrasted.Results The puncture operation time of the fusion group was shorter than that of the control group(P<0.05);the intraoperative and postoperative VAS and BNI scores,occurrence rate of intraoperative discomfort and postoperative complications in the fusion group were lower than those in the control group(P<0.05).Conclusion In respect of improving therapeutic effect and diminishing intraoperative discomfort and postoperative complications,CT/MRI image fusion technique is superior to CT guidance.

Objective:To analyze the screening test results of people infected with human immunodeficiency virus (HIV) in the window period confirmed to be "negative" by Western blotting, with a view to finding a way to identify people infected with HIV during the window period as soon as possible.Methods:In the serum (plasma) samples of HIV-positive people screened by the fourth-generation chemiluminescent immunoassay in medical institutions at all levels in Pudong New District, Shanghai from 2014 to 2021, a total of 100 people (200 samples) were confirmed as "negative" and the fourth-generation enzyme-linked immunosorbent assay was screened positive. According to the follow-up results, it was divided into the early infection group (24 cases) and the uninfected group (76 people), and the fourth-generation rapid diagnostic test (RDT) was performed. The compliance rates of positive results of screening and follow-up were compared, and the epidemiological data of early HIV infections were analyzed. The chi-square test was used for statistical analysis.Results:Of the 200 samples, 48(24.00%) were early infected. A total of 106 samples antigens and (or) antibodies were positive by the fourth-generation RDT screening, and the compliance rate with the follow-up results was 45.28%(48/106), of which those of the fourth-generation RDT screening antigen positive and follow-up results were 100.00%(36/36), which was higher than the antibody positive results (24.68%(19/77)). The difference was statistically significant ( χ2=57.49, P<0.001). Of the 24 cases of early HIV infections, 19(79.2%) had acute symptoms. Only one out of six people≥50 years old had asked about the partner about his HIV status before engaging high-risk sex, and 13 out of 18 people <50 years old had asked the partners about their HIV status or to detect HIV before engaging high-risk sex. The difference was statistically significant ( χ2=5.71, P=0.017). Out of the six people ≥50 years old, only one actively tested HIV, and 12 out of 18 people <50 years old actively tested HIV, and the difference was statistically significant ( χ2=4.53, P=0.033). Conclusions:The Western blotting confirmed "negative" samples may be false negative. The comprehensive evaluation which combined with the fourth-generation screening test could help to screen out HIV window infection. In addition, the publicity, education and monitoring of high-risk population need to be further strengthened.

Objective:To investigate the safety of early antiplatelet therapy for non-cardioembolic mild stroke patients with thrombocytopenia.Methods:Data of acute ischemic stroke patients with baseline National Institutes of Health Stroke Scale(NIHSS)score≤3 and a platelet count<100×109/L were obtained from a multicenter register.Those who required anticoagulation or had other contraindications to antiplatelet therapy were excluded.Short-term safety outcomes were in-hospital bleeding events,while the long-term safety outcome was a 1-year all-cause death.The short-term neurological outcomes were evaluated by modified Rankin scale(mRS)score at discharge.Results:A total of 1868 non-cardioembolic mild stroke patients with thrombocytopenia were enrolled.Multivariate regression analyses showed that mono-antiplatelet therapy significantly increased the proportion of mRS score of 0-1 at discharge(OR=1.657,95%CI:1.253-2.192,P<0.01)and did not increase the risk of intracranial hemorrhage(OR=2.359,95%CI:0.301-18.503,P>0.05),compared with those without antiplatelet therapy.However,dual-antiplatelet therapy did not bring more neurological benefits(OR=0.923,95%CI:0.690-1.234,P>0.05),but increased the risk of gastrointestinal bleeding(OR= 2.837,95%CI:1.311-6.136,P<0.01)compared with those with mono-antiplatelet therapy.For patients with platelet counts≤75×109/L and>90×109/L,antiplatelet therapy significantly improved neurological functional outcomes(both P<0.05).For those with platelet counts(>75-90)×109/L,antiplatelet therapy resulted in a significant improvement of 1-year survival(P<0.05).For patients even with concurrent coagulation abnormalities,mono-antiplatelet therapy did not increase the risk of various types of bleeding(all P>0.05)but improved neurological functional outcomes(all P<0.01).There was no significant difference in the occurrence of bleeding events,1-year all-cause mortality risk,and neurological functional outcomes between aspirin and clopidogrel(all P>0.05).Conclusions:For non-cardioembolic mild stroke patients with thrombocytopenia,antiplatelet therapy remains a reasonable choice.Mono-antiplatelet therapy has the same efficiency as dual-antiplatelet therapy in neurological outcome improvement with lower risk of gastrointestinal bleeding.

Aim To investigate whether SIRT6 overexpression inhibits angiotensin Ⅱ(Ang Ⅱ)-induced cardio-myocyte apoptosis by activating adenosine 5'-monophosphate-activated protein kinase/nuclear factor erythroid 2-related factor 2/heme oxygenase-1(AMPK/Nrf2/HO-1)signaling pathway.Methods The experiment was divided into 4 groups:control group,AngⅡ group,Ang Ⅱ+SIRT6 group,Ang Ⅱ+empty vector(EV)group.The mRNA level of SIRT6 was detected by RT-PCR.The cell activity was measured by MTT assay.The cell apoptosis was analyzed by flow cy-tometry.SIRT6,cardiomyocyte apoptosis related proteins(Bax,cleaved Caspase-3,Bcl-2),DNA damage related pro-teins(γ-H2AX,p-ATM),AMPK/Nrf2/HO-1 signaling pathway related proteins(p-AMPK,Nrf2,HO-1)were measured by Western blot.The reactive oxygen species(ROS)content was determined by DCFH-DA staining.The changes of the above indexes among the groups were observed.Results Compared with control group,the mRNA and protein ex-pression levels of SIRT6 and cell activity were significantly decreased in Ang Ⅱ group.Apoptosis rate,the expressions of Bax,cleaved Caspase-3 were increased,and the expression of Bcl-2 was decreased.The expressions of γ-H2AX and p-ATM were increased,and the expressions of p-AMPK,Nrf2,HO-1 were decreased.The activity of ROS was increased(P＜0.01).Compared with Ang Ⅱ+EV group,the expression of SIRT6 and cell activity were significantly increased in Ang Ⅱ+SIRT6 group.Apoptosis rate,the expressions of Bax and cleaved Caspase-3 were decreased,and the expression of Bcl-2 was increased.The expressions of γ-H2AX and p-ATM were decreased,the expressions of p-AMPK,Nrf2,HO-1 were increased.The activity of ROS was decreased(P＜0.01).Conclusion SIRT6 overexpression inhibits Ang Ⅱ-induced cardiomyocyte apoptosis through activation of AMPK/Nrf2/HO-1 signaling pathway.

Female pelvic organ prolapse (POP) is caused by damage or loss of pelvic floor support, resulting in displacement of the pelvic organs, which leads to abnormalities in the position and function of the organs, mainly due to damage to the pelvic floor mechanical support structures caused by transvaginal birth, loss of elasticity of the pelvic floor mechanical support structures in old women, and loss of the ability to maintain the pelvic floor. The key to POP surgery is the repair of the apical vagina, but treatment based on this theory has failed to achieve satisfactory clinical outcomes. This article will analyze the common procedures of apical suspension in the treatment of mid-pelvic prolapse from the perspective of pelvic floor morphological features and pelvic floor biomechanics axially.

Objective:To investigate the techniques used in blood flow control of Kimura laparoscopic spleen-preserving pancreatectomy (LSPDP).Methods:Forty·five patients with benign or low-grade malignant pancreatic diseases undergoing LSPDP at Huzhou Central Hospital from May 2014 to Oct 2021 were analyzed retrospectively. Patients were divided into splenic vascular flow control group ( n=22) and routine management group ( n=23). Results:There was no significant difference in gender, age, BMI, accompanying symptoms, hypertension, diabetes, lesion size and pathological diagnosis between the two groups (all P>0.05). A higher overall spleen preservation rate (90.9% vs. 52.2%, χ2=8.213, P=0.004), lower incidence of morbidity with Clavien grade ≥ Ⅱ (22.7% vs. 73.9%, χ2=9.911, P=0.002) and shorter postoperative hospital stay [(9.6±4.5) d vs. (14.3±6.6) d, t=2.447, P=0.008] were achieved in the vascular flow control group compared with those in the routine group. Conclusion:Splenic vascular flow control techniques improve the success rate of spleen preservation in laparoscopic distal pancreatectomy, reduce the postoperative complications and shorten the postoperative hospital stay.

Objective:To analysis effectiveness of the "14 plus 7 day quarantine" and "nucleic acid plus total antibody testing" strategy (combined screening strategy) for screenin the imported patients with COVID-19 in Xiamen.Methods:The study populations were overseas travelers arriving in Xiamen from March 17 to December 31, 2020, and overseas travelers who had quarantine outside Xiamen for less than 21 days from July 18 to December 31, 2020. Data were collected and analyzed on the timing of detection, pathways, and test results of the imported patients with COVID-19 after implementing combined screening strategy.Results:A total of 304 imported patients with COVID-19 were found from 174 628 overseas travelers and 943 overseas travelers from other cities. A total of 163 cases (53.6%) were diagnosed by multitime, multisite intensive nucleic acid testing after positive finding in total antibody testing. Among them, 27 (8.9%) were first positive for nucleic acid in 14 plus 7 day quarantine and 136 were first positive for nucleic acid in 14-day quarantine. Only 8 of these individuals were tested positive for nucleic acid after positive total antibody testing. The other 128 individuals were tested positive for nucleic acid after being negative for average 2.3 times (maximum of 6 times). Aditional 155 cases might be detected by using the combined "14 plus 7 day quarantine" and " nucleic acid plus total antibody testing" strategy compared with "14-day quarantine and nucleic acid testing" strategy, accounting for 51.0% of the total inbound infections. So the combined screening strategy doubled the detection rate for imported patients with COVID-19. No second-generation case caused by overseas travelers had been reported in Xiamen as of February 26, 2021.Conclusions:Xiamen's combined screening strategy can effectively screen the imported patients with COVID-19 who were first positive for nucleic acid after 14 day quarantine. Compared with "14 day quarantine and nucleic acid testing", the combined screening strategy improved detection rate and further reduced the risk of the secondary transmission caused by the imported patients with COVID-19.

Hepatocellular carcinoma(HCC) is one of the most common malignant tumors of the digestive system in the clinic. In recent years, the proposal and development of immunotherapy have set off a worldwide anticancer upsurge. In particular, programmed death receptor 1(PD-1) and programmed death receptor ligand 1(PD-L1) inhibitor have been used in a wide variety of tumor diseases and achieved good curative effect. However, the application of PD-1 or PD-L1 inhibitors in HCC is mostly still at the stage of clinical trials, and some clinical trials have shown gratifying results in patients with advanced HCC and postoperative recurrence. More studies have shown that PD-1 or PD-L1 inhibitors combined with radiofrequency, chemoradiotherapy, and molecular targeted drugs can bring greater benefits to patients.

Hepatocellular carcinoma(HCC) is one of the most common malignant tumors of the digestive system in the clinic. In recent years, the proposal and development of immunotherapy have set off a worldwide anticancer upsurge. In particular, programmed death receptor 1(PD-1) and programmed death receptor ligand 1(PD-L1) inhibitor have been used in a wide variety of tumor diseases and achieved good curative effect. However, the application of PD-1 or PD-L1 inhibitors in HCC is mostly still at the stage of clinical trials, and some clinical trials have shown gratifying results in patients with advanced HCC and postoperative recurrence. More studies have shown that PD-1 or PD-L1 inhibitors combined with radiofrequency, chemoradiotherapy, and molecular targeted drugs can bring greater benefits to patients.

With the rapid development of organ donation and transplantation, it becomes increasingly important to improve the management system and ensure the quality and safety of organs for transplantation. Guide to the Quality and Safety of Organs for Transplantation (6th Edition) by European Committee provides the definitions of severe adverse reactions and severe adverse events in the perspective of biosafety early warning, delivers management and reporting processes, and encourages medical staff involved in organ transplantation to identify the adverse reactions and adverse events as soon as possible, and to carry out investigation, assessment and feedback. At the same time, it also systematically illustrates the warning and monitoring of organ transplantation risk, which is worthy of application in clinical study and practice.