2.Investigation on the neutralizing antibody against Japanese encephalitis virus in healthy people in Southeast Gansu province in 2018
Xiaohong ZHAO ; Maoxing DONG ; Xijian YANG ; Huan WEI ; Na JIN ; Ying CHEN ; Xiaoshu ZHANG ; Jianfeng LIU
Chinese Journal of Experimental and Clinical Virology 2022;36(5):591-594
Objective:To determine neutralizing antibodies against Japanese encephalitis virus (JEV) among healthy people of Southeast Gansu province, and to evaluate immunologic barrier, and provide the data for Japanese encephalitis (JE) control.Methods:Healthy people were divided into the following 3 groups: less than 14 years, 15-39 years, and above 40 years in 2018 in four cities (Pingliang city, Qingyang city, Longnan city, Tianshui city) of Southeast Gansu province. Serum samples of the participants were obtained, and JEV antibody was detected by plaque reduction neutralization assays. The JEV neutralizing antibody positive rates among different groups were compared by chi square test.Results:A total of 1 590 people were investigated. The total positive rate of JEV neutralizing antibody was 28.81%, and the geometric mean titer (GMT) of JEV neutralizing antibody was 1∶27.09. The antibody positive rates of 0-14, 15-39 and ≥ 40 years groups were 32.96%, 20.32%, 30.63%, the difference of antibody positive rates among different age groups was statistically significant ( χ2=22.29, P<0.001). The antibody positive rates in Pingliang city, Qingyang city, Longnan city, Tianshui city were 29.62%, 22.22%, 33.00%, 30.30%, the difference of antibody positive rates among cities was statistically significant( χ2=12.39, P=0.006). Conclusions:The positive rates of neutralizing antibodies against JEV was low among healthy people in Southeast Gansu province, and there is an epidemic risk of JE.
3.Efficacy of "over iliac crest method" for ultrasound-guided posterior lumbar plexus block: a comparison with manual palpation and sagittal positioning
Kun CHEN ; Ji LI ; Xijian KE ; Xi WU ; Wenjun LI ; Wei MEI ; Yuke TIAN
Chinese Journal of Anesthesiology 2018;38(6):699-702
Objective To evaluate the efficacy of "over iliac crest method" for ultrasound-guided posterior lumbar plexus block by comparing with manual palpation and sagittal positioning.Methods A total of 75 patients,aged 25-64 yr,weighing 42-90 kg,with body mass index of 17-32 kg/cm2,of American Society of Anesthesiologists physical status Ⅰ-Ⅲ,scheduled for elective lower extremity surgery under ultrasound-guided posterior lumbar plexus block combined with parasacral sciatic nerve block,were divided into 3 groups (n =25 each) using a random number table method:manual palpation group (group M),sagittal positioning group (group S) and "over iliac crest method" group (group O).Patients received ultrasound-guided posterior lumbar plexus block with in-plane technique using the corresponding positioning method in M,S and O groups.Successful blockade of each level was recorded at 30 min after injection.Time to determine the lumbar intervertebral space,puncture time for lumbar plexus block,the requirement for adjuvant drugs and block efficacy were recorded.The development of complications related to puncture and nerve block was also recorded.Results Compared with group M,the success rates of blockade at levels L1 and L2 were significantly increased,the success rates of blockade at levels L4 and L5 were decreased (P<0.05),no significant difference was found in the success rate of blockade at level L3 (P>0.05),the time to determine the lumbar intervertebral space was prolonged,and the requirement for adjuvant drugs was decreased during surgery in O and S groups,and the efficacy of block was significantly enhanced in group O (P<0.05).Compared with group S,the success rates of blockade at levels L1 and L2 were significantly increased,the success rates of blockade at level L4 were decreased,the time to determine the lumbar intervertebral space was shortened (P<0.05),and no significant change was found in the efficacy of block in group O (P>0.05).There was no significant difference in the puncture time for lumbar plexus block between the three groups (P>0.05).Complications related to puncture and nerve block were not found in three groups.Conclusion "Over iliac crest method" provides higher success rate and better efficacy than manual palpation and sagittal positioning when used for lumbar plexus block.
4.Comparison of different anesthesia techniques on early prognosis in patients undergoing hip joint re-placemen
Xi WU ; Mingbing CHEN ; Li WAN ; Xijian KE ; Shuguang YANG ; Jun XIAO ; Hongbo YOU ; Fengjin GUO ; Wei MEI ; Yuke TIAN
Chinese Journal of Anesthesiology 2018;38(8):899-903
Objective To compare the effects of different anesthesia techniques on early prognosis in patients undergoing hip joint replacement. Methods The demographic, preoperative and postoperative data of 478 patients, aged 18-95 yr, of American Society of Anesthesiologists physical statusⅠ-Ⅳ, who underwent elective unilateral hip joint replacement in Tongji Hospital from May 2014 to December 2016, were retrospectively analyzed. Patients were divided into general anesthesia group (group GA, n=197), peripheral nerve block group ( group PNB, n=147) and peripheral nerve block combined with general an-esthesia group ( group PNB+GA, n=134) . The amount of crystalloid solution and colloid solution infused, consumption of sufentanil and requirement for vasoactive agents were recorded during operation. The dura-tion of anesthetic recovery room stay, length of hospital stay before and after operation and total length of hospital stay were recorded. The development of complications within 48 h after operation, therapy after ad-mission to intensive care unit and in-hospital fatality were also recorded. Results Compared with group GA, the intraoperative consumption of sufentanil was significantly decreased in group PNB+GA, and the a-mount of crystalloid solution infused, urine output, consumption of sufentanil, requirement for vasoactive agents and incidence of postoperative hypoxemia, pulmonary infection and acute cerebral infarction were significantly decreased in group PNB+GA ( P<0. 05) . Compared with group PNB+GA, the consumption of sufentanil, requirement for vasoactive agents and incidence of postoperative hypoxemia, pulmonary infec-tion and acute cerebral infarction were significantly decreased in group PNB (P<0. 05). Conclusion Compared with general anesthesia or with peripheral nerve block-general anesthesia, peripheral nerve block is more helpful in improving early prognosis in patients undergoing hip joint replacement.
5.Clinical application of pocket-sized ultrasound localization on radial artery cannulation
Ji LI ; Kun CHEN ; Xijian KE ; Wei MEI
The Journal of Clinical Anesthesiology 2018;34(2):123-125
Objective To assess the clinical application effect of pocket-sized ultrasound-guided radial artery cannulation.Methods Two hundreds and ten patients undergoing elective surgery,146 males and 64 females,aged 18-70 years,ASA physical status Ⅰ-Ⅲ,were scheduled for radial arterial catheterization.The patients were randomly divided into three groups (n =70 each):control group (group C),pockevsized ultrasound group (group U1) and conventional portable ultrasound group (group U2).In group C,the radial artery catheter placement were performed by traditional palpation method.In group U1,the radial artery cannulation were achieved by GE Vsacn pocket-sized ultrasound guidance.In groups U2,the ultrasound-guided radial artery catheterization were completed by conventional portable ultrasound.Before radial arterial cannulation,the diameter of radial artery and the distance between skin to artery in ultrasound images were measured and recorded.The first attempt success rate,cases that punctured less than 3 times,the number of attempts,successful cannulation time and potential complications were recorded.Results There was no statistic significant difference in the hemodynamic parameters,the diameter and the depth of radial artery among three groups.Compared with group C,patients in the other groups had higher first attempt success rate and greater proportion of cases that punctured less than 3 times,fewer placement attempts,shorter catheterization time,and lower incidence of the complication of hematoma (P<0.05).There was no significant difference between groups U1 and U2 among these characteristics.Conclusion Ultrasound is a valuable adjunct to radial arterial catheter insertion.The pocket sized ultrasound may be a good alternative option to guide radial artery catheter placement.
6.Effects ofⅠ,ⅡCrystal and Amorphous Forms of Lercanidipine Hydrochloride on the Preparation
Xinjue BU ; Tao ZHANG ; Chi WANG ; Xijian XIA ; Guosong CHEN
China Pharmacy 2017;28(10):1346-1349
OBJECTIVE:To study the effects of Ⅰ,Ⅱ crystal and amorphous forms of lercanidipine hydrochloride on the preparation,and provide theoretical basis for its development and consistency evaluation. METHODS:X-ray powder diffraction (XRD),infrared spectrophotometry(IR)and differential scanning calorimetry(DSC)were adopted to identify the 3 crystal forms of lercanidipine hydrochloride. XRD was used to compare the effects of crushing,grinding,pressing technology,wetting granula-tion,adhesive solvents(water,ethanol)and drying temperature(50,60,70℃)on stability of 3 crystal forms of lercanidipine hy-drochloride;the dissolution in vitro in water,hydrochloride,pH 4.5 acetate buffer,pH 6.8 phosphate buffer were compared among 3 crystal forms of Lercanidipine hydrochloride tablet. RESULTS:XRD showed both Ⅰ,Ⅱ crystal forms had characteristic diffrac-tion peak with inconsistent 2 θ values,amorphous had no characteristic diffraction peak;IR showed 3 crystal forms had different absorption intensity and absorption peak number;DSC showed Ⅰ,Ⅱ crystal forms had obvious endothermic peak in 194.6 ℃, 207.3 ℃,respectively,amorphous had obvious endothermic peak in 86.1 ℃ and exothermic peak in 299.8 ℃. Crushing,grinding, pressing and drying temperature had no effects on the stability of 3 crystal forms;water had no effect on the stability of crystal in wetting granulation,ethanol may cause the change of Ⅰcrystal form. Except for the comparison between Ⅰ,Ⅱ crystal forms in hydrochloride (f2=68),the dissolution f2 of 3 crystal forms in 4 kinds of medium were lower than 50. CONCLUSIONS:XRD, IR,DSC methods can identify the 3 crystal forms of Lercanidipine hydrochloride tablet. When preparing lercanidipine hydrochlo-ride by Ⅰcrystal form,wetting granulation should avoid using ethanol as a adhesive solvent,instead of water. Different crystal forms can affect the dissolution in vitro of prepared Lercanidipine hydrochloride tablet.
7.Comparison of analgesic effects of ultrasound-guided continuous iliac fasicia block using different approa-ches after total hip arthroplasty
Xi WU ; Bin YI ; Ji LI ; Xijian KE ; Kun CHEN ; Wei MEI
The Journal of Clinical Anesthesiology 2017;33(10):944-948
Objective To compare the analgesic effect of continuous iliac fasicia block with dif-ferent approaches for patients undergoing total hip arthroplasty (THA).Methods Forty patients,21 males and 9 females,ASA physical status Ⅰ or Ⅱ,scheduled for elective hip arthroplasty surgery in Tongji Hospital from June to December 2016 were enrolled and randomly divided into two groups:parallel group (n =20)or vertical group (n =20).Patients received ultrasound-guided continuous iliac fasicia block with a short-axis in-plane technique in the parallel group and a long-axis in-plane tech-nique in the vertical group after the surgery.All patients had a 10 ml bolus of lidocaine 1% via the catheter followed by an infusion of ropivacaine 0.2% at 4 ml/h for 48 h.The ultrasound imaging time,procedure time and the depth of catheter were recorded.Cumulative frequency of patient-con-trolled nerve blockade analgesia (PCNA),ropivacaine consumption,pain scores at rest,the success rate of block,satisfaction scores and postoperative complications were recorded at every six hours during 48 h after the surgery.Results The ultrasound imaging time and procedure time in the vertical group were longer than in the parallel group (P <0.05).The depth of catheter in the vertical group was significantly greater than in the parallel group (P <0.05).The cumulative frequency of PCNA in the vertical group was significantly less than the parallel group (P <0.05 ).The success rate of the lateral femoral cutaneous nerve block in the vertical group was significantly higher than the parallel group at 6,12,18,24,30,36,42,48 h.The cumulative ropivacaine consumption at 24,30,36 h in the vertical group was significantly less compared with the parallel group (P <0.05).The pain inten-sity at rest was less in the vertical group compared with the parallel group at 24,30,36,42,48 h (P<0.05).There were no significant differences in the success rate of the femoral nerve block,satisfac-tion scores and related complications between the two groups.Conclusion Continuous iliac fasicia block with the short-axis in-plane and long-axis in-plane technique can effectively provide the postop-erative analgesic effects for patients undergoing THA.The long-axis in-plane technique in the vertical group with a higher success rate of the lateral femoral cutaneous nerve block can significantly reduce the ropivacaine consumption and pain scores.
8.Efficacy of preoperative transversus abdominis plane block for analgesia after kidney transplantation
Ji LI ; Xijian KE ; Kun CHEN ; Mingbing CHEN ; Wei MEI
Chinese Journal of Anesthesiology 2017;37(11):1353-1355
Objective To evaluate the efficacy of preoperative transversus abdominis plane block (TAPB)for analgesia after kidney transplantation. Methods Forty American Society of Anesthesiologists physical status ⅡorⅢpatients, aged 18-64 yr, with body mass index of 18-24 kg∕m2, scheduled for e-lective kidney transplantation, were divided into 2 groups(n=20 each)using a random number table:TAPB group and routine analgesia control group(group C). After induction of anesthesia, ultrasound-guided TAPB was performed on the operated side with 0.5% ropivacaine 20 ml in group TAPB. Patient-controlled intravenous analgesia with sufentanil was provided to all the patients after surgery. Tramadol 50 mg was intravenously injected as a rescue analgesic to maintain visual analogue scale score within 24 h after surgery≤3. The consumption of anesthetics during surgery and amount of sufentanil consumed and require-ment for rescue analgesic within 24 h after surgery were recorded. Ramsay sedation scores were recorded at 2, 4, 6, 12 and 24 h after surgery. The occurrence of nausea and vomiting, pruritus and respiratory de-pression within 24 h after surgery were recorded. TAPB-related complications were also recorded in group TAPB. Results Compared with group C, the consumption of remifentanil was significantly reduced during surgery, and the amount of sufentanil consumed within 24 h after surgery was decreased(P<0.05), and no significant change was found in the incidence of Ramsay sedation scores, nausea and vomiting, pruritus or respiratory depression in group TAPB(P>0.05). No patients required rescue analgesic in two groups. TAPB-related complications were not found in group TAPB. Conclusion Preoperative TAPB reduces the perioperative opioid consumption and enhances the efficacy of postoperative analgesia in the patients under-going kidney transplantation.
9.Study on correlations between CT perfusion parameters and tumor angiogenesis of cervical cancer.
Haibo QU ; Gang NING ; Xuesheng LI ; Li BAO ; Xijian CHEN ; Jun LI
Journal of Biomedical Engineering 2013;30(2):254-259
This study was aimed to analyze the correlation between CT perfusion parameters, e. g. perfusion (PF), blood volume (BV), peak enhancement image (PEI), time to peak (TTP), and the microvessel density (MVD) of cervical cancer. CT perfusion scans were carried out in 31 patients with cervical cancer. After their surgical resections, we obtained 31 cases of cervical cancer specimens, and 15 cases of adjacent normal cervical specimens as control group, then these 46 specimens were used in MVD detection through immunohistochemical CD34 staining. The MVDs of the tumor group were significantly higher than those in the control group, and the former seems to increase with the clinical stages with a positive correlation. The PF and PEI values have positive correlations with corresponding MVD values. The PF value of squamous carcinoma group has correlation with corresponding MVD value. The PF and PEI values of poorly differentiated group have correlations with corresponding MVD values. The PF, PEI and BV values of II-III stage group are positively correlated with corresponding MVD values. The PF value of lymph metastasis or non-lymph metastasis group both have correlations with corresponding MVD values. We found that CT perfusion parameters were positively correlated with corresponding MVD values in cervical cancer. Our results suggest that CT perfusion is a new method which could reflect tumor angiogenesis, histological malignant grade, invasion, and clinical stage. It will help us determine the tumor staging and prognosis.
Adenocarcinoma
;
blood supply
;
diagnostic imaging
;
Adult
;
Aged
;
Carcinoma, Squamous Cell
;
blood supply
;
diagnostic imaging
;
Contrast Media
;
Female
;
Humans
;
Microvessels
;
pathology
;
Middle Aged
;
Neovascularization, Pathologic
;
diagnostic imaging
;
Perfusion Imaging
;
Radiographic Image Interpretation, Computer-Assisted
;
Tomography, Spiral Computed
;
methods
;
Uterine Cervical Neoplasms
;
blood supply
;
diagnostic imaging
;
Young Adult
10.Influence of psychological nursing intervention for quality of life in patients with ovary cancer
Xijian QIU ; Kai WANG ; Yaoqiu HUANG ; Xian CHEN ; Meihua XU
Chinese Journal of Practical Nursing 2010;26(5):18-21
Objective To know the influence of psychological nursing intervention for quality of life in patients with ovary cancer. Methods Divided 300 patients with ovary cancer into the intervention group and the control group randomly, there were 150 cases in the each group. Routine nursing cares was ued in the control group, the psychological nursing intervention was used in the intervention group in addi-tion. Compared the quality of life between the two groups by interviewed questionnair. Results After the nursing intervention, the indexes which can indicated the quality of life in the intervention group were bettez than those of in the control group significantly. Conclusions Psychological nursing intervention can ef-fective promote the quality of life of patients with ovary cancer.

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