1.Experience of adult inguinal hernia treated with the open preperitoneal herniorrhaphy under local anesthesia
Liang ZHAO ; Jie ZHANG ; Zuojun LIU
International Journal of Surgery 2014;41(7):464-466
Objective To investigate experience in adult inguinal hernia treated with the open preperitoneal herniorrhaphy.Methods Eight hundred and twenty-six cases were retrospectively analyzed from February 2004 to December 2011 in our hospital.The effect of operative methods and treatment were observed simultaneously.Results All the patients were cured completely without special complications; Followed up for 12 months,some negative factors such as incision infection,recurrence,special discomfort,and chronic pain have not been appeared.Conclusions The open preperitoneal herniorrhaphy under local anesthesia for adult inguinal hernia is safe,reliable and effective.
2.Somatic Sensory Centre of Temporal Lobe:fMRI Study
Zuojun GENG ; Yunting ZHANG ; Quan ZHANG ; Wei LI ; Jing ZHANG
Journal of Practical Radiology 2001;0(08):-
Objective To observe responses of brain evoked by somatic stimuli in healthy subjects with blood oxygenation level-dependent functional magnetic resonance imaging.Methods There were 30 healthy subjects in the study. Block design was used infunctional MR imaging. In experimental tasks somatic stimuli was executed to the hands of every subject at duration 1000 ms,interstimulus intervals 1000 ms.The professional software-SPM99 was performed to process the images.Results For healthy subjects to somatic stimuli, significant activation was observed in bilateral primary and secondary somatic cortex of precentral gyri and postcentral gyri, and temporallobes. Scattered activations could be seen in frontal lobes, supramarginal gyri and hemisphere of cerebella. There was more intensiveactivation in right hemisphere than that in left. There was no significant difference between the activation evoked by somatic stimuli of leftand right extremities. Conclusion somatic stimuli can evoke significant activations in bilateral primary and secondary somatic cortex.Temporal lobes and other brain areas join in the process of somatic stimuli.
3.Three-dimensional finite element models of advancement skin flap and simulation analysis based on skin biomechanical features
Zhao ZHANG ; Jie LUAN ; Zuojun JING ; Guanyi LI ; Yujing LI
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(2):121-124
Objective To build three-dimensional (3-D) finite element models for local advancement skin flap, by which the post-operative local strain and local stress of skin were figured out to assist in the design of skin flap in clinic. Methods The biomechanical parameters of human forehead skin were obtained in vitro from biomechanical experiments. The 3-D finite element model of local advancement skin flap was set up by MSC Marc/Mentat 2005 (3-D finite element software). Six models were built with the same flap but different skin defects, to simulate post-operative local strain of skin and local stress of skin in different models. Results Post-operative local stress of skin increased with the skin flaps stretching, but the relationship between increase and stretching did not meet the linear rule. Skin flap was able to stretch to 40 % of its initial length in theory if we did not consider blood supply of it. When the skin flap stretched over 40 % of its initial length, the maximal stress could exceed the yield limit. Conclusion It is an effective and workable way to simulate local advancement skin flap using 3-Dfinite element model and biomechanical parameters of human skin. The stretch ratio of local advancement skin flap should be not over 40% for safety.
4.Study of morphological and immunohistochemical characteristics of phyllodes tumors
Yongjun YANG ; Xiulin ZHANG ; Zuojun WANG ; Qingmin TAN
Cancer Research and Clinic 2014;26(1):32-35
Objective To investigate the morphological and immunophenotypic characteristics of phyllodes tumors (PT) and explore their significance in differential diagnosis and evaluation of prognosis.Methods 48 specimens with PT were observed under light microscope with HE and immunohistochemical staining (EnVision method).The antibodies including CD34,CD10,CD117,p53,and Ki-67 were used.10 cases of fibroadenoma were compared and the clinical data and follow-up results were analyzed retrospectively.Results All of 48 cases with PT presented as well-circumscribed masses with typically leaflike structures composed of double-layered epithelial component arranged in clefts and overgrowing hypercellular mesenchymal component.31 benign,12 borderline,and 5 malignant PT were diagnosed based on stromal overgrowth,cellular pleomorphism,mitosis,margins,and others.Focal necrosis was detected in 3 malignant cases and liposarcoma component existed in 1 case.Immunohistochemical staining showed that the positive rates of CD34 were 93.5 %,58.3 %,0 in benign,bordline,and malignant PT respectively,there were significant differences between each groups (P < 0.05).The expression of CD10 were 25.8 %,83.3 %,80.0 %,its expression in benign group was significantly different compared with bordline and malignant PT (P < 0.05).p53 was expressed in three groups with no significant difference (P > 0.05).CD117 and Ki-67 had high expression comparatively in malignant PT.All cases were treated surgically with a local recurrence rate of 22.9 %.Conclusions Reasonable surgery pattern based on accurate histopathological diagnosis is crucial to reduce the local recurrence rate of PT.Immunohistochemistry examination in PT is helpful to the differential diagnosis and evaluation of prognosis.
5.Clinical research on effect of Shenfu Injection in treating vertigo of mild vertebrobasilar stenosis
Zuojun TIAN ; Zhimin ZHANG ; Zhihua YANG ; Lei LIU
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(11):-
Objective: To evaluate the effect of Shenfu Injection in treating vertigo of mild vertebrobasilar stenosis. Methods: From January 2005 to July 2008, 66 patients with the primary symptom of vertigo undergoing digital subtraction angiography (DSA) examination were diagnosed as mild vertebrobasilar stenosis (MVS) according to the North American symptomatic carotid endarterectomy trial (NASCET) criteria, and then randomly divided into Shenfu (SF) group (34 cases) and Danshen (DS) group (32 cases), the DS group acting as the control. Degrees of vertigo of the patients were evaluated by the screening version of the dizziness handicap inventory (DHI-S) and scoring system for the dizziness assessment rating scale (DARS) on the admitted day, the third and sixth day after treatment and discharged day respectively. The mean of blood ? ow velocity (Vm), resistance index (RI) of right and left vertebral arterys and basilar artery, hematocrit (Hmc) and fi brinogen (Fbg) level in serum were all examined on both the admitted and discharged days. Results: There was no signifi cant difference on the score of vertigo, the parameter of TCD and the index in serum between SF and DS groups at the admitted time. On the sixth day of treatment and the discharged day, the score of DHI-S and DARS in SF group were lower than those in DS group (P
6.Expression of BLM mRNA in leukemia and its clinical significance
Yongjuan ZHANG ; Xiaodong HE ; Yujie SUN ; Baiyin ZHANG ; Rong HUANG ; Jinling JI ; Zuojun SHEN
Chinese Journal of Laboratory Medicine 2012;(12):1130-1134
Objective To investigate the correlation between the expression level of BLM and its clinical significance in leukemia.Methods 125 bone marrow specimens of inpatients and outpatients with leukemia were collected in Anhui provincial hospital from January 2011 to December 2011.125 leukemia patients were diagnosed and classified into acute leukemia (AL,n =66) and chronic myelogenous leukemia (CML,n =59) by Morphologic and Immunologic criteria,5 non-tumor individuals were included as control group.The BLM mRNA expressions were by reverse transcription-polymerase chain reaction(RT-PCR).The specimens were devided into groups according to the age,gender,leukemia type,peripheral blood leukocyte counts,hepatomegalia and(or) splenomegaly,fusion gene,chromosome karyotype,whether first visit and transplantation.The expression of BLM gene in each group and the correlation with above factors were retrospectively analysed.The statistical methods such as chi-square test,single factor variance analysis,t test and Pearson correlation test were mainly used.Results BLM mRNA was detected in leukemia.In bone marrow cells,the BLM gene expression was positive in 71 patients and negative in 54 patients.But none of 5 non-tumor bone marrow cells expressed BLM gene.The difference of BLM expression between patients and controls was statistically significant in two groups,i.e.peripheral blood leukocyte counts and fusion gene (x2 =14.730,22.399 ; P < 0.05),but there is no statistical significant differences in other groups.The expressions of BLM mRNA in leukemia patients who had been treated with chemotherapy were lower than those newly diagnosed (0.1788 ± 0.1091 vs 0.3276 ± 0.2016 ; P < 0.05).Moreover,BLM mRNA level in post-bone marrow transplant patients was lower than those not treated (0.1271 ± 0.1009 vs 0.2902 ±0.2034 ; P < 0.05).Pearson correlation analysis showed that higher BLM mRNA expression positively correlated with fusion gene (r =0.357,P < 0.01) and chromosome abnormality (r =0.279,P < 0.05).Conclusion The BLM mRNA expression level of measurement can be used as judgment for leukemia patients disease severity and the index of prognosis,testing the level may provide a basis for clinical and curative effect judgment.
7.A novel method for detection of circulating tumor cells in peripheral blood of patients with lung cancer using immunomagnetic beads device
Jinling JI ; Xiaodong HE ; Meifang SUO ; Pei ZHANG ; Rong HUANG ; Yujie SUN ; Zuojun SHEN
Chinese Journal of Laboratory Medicine 2013;36(8):727-732
Objective To establish a novel method for detecting circulating tumor cells (CTCs) in phripheral blood of lung cancer patients with high sensitivity and specificity.Methods Experimental study.42 cases of initial treatment patient who underwent resection and diagnosed to be non-small cell lung cancer by biopsy were studied,including 7 patients at stage Ⅰ,9 patients at stage Ⅱ,16 patients at stage Ⅲ and 10 patients at stage Ⅳ.As a control group,20 cases of healthy volunteers were selected.A series of experiments was conducted to determine the efficiency of tumor cells isolation,in which varied concentration (50,100,200,500,1000 cells) of A549 cells spiked into 2 ml peripheral blood drawn from healthy donors.The blood was removed of unwanted erythrocytes by lysis buffer,and made the rest of nucleated cells incubate with anti-EpCAM magnetic beads,then separated and enriched by a specific detector.All epithelia cells were retained on a slide because of a magnetic force and identified by H&E staining protocol.On the basis of cell recovery rate we calculated the sensitivity of tumor cells isolation.20 blood samples taken from healthy individuals were also detected to validate the specificity of this method.Samples of 42 patients with lung cancer were assayed for CTCs detection by above method.The correction of CTCs quantity with the patients' clinical features,for example,ages,gender,clinical stage,tumor size was analyzed in lung cancer patients by chi-square statistics.The correction of recovery cells with the spiked cells were assayed by linear correlation.Results The recovery rate was ranging from 68% to 82% by spiking varying numbers of A549 lung cancer cells into 2ml blood samples of healthy volunteers.Regression analysis of number of recovered vs.spiked A549 cells yielded a regression equation of Y =0.6419X + 8.8875.The number of CTCs detected has signification correlate with the cells spiked (R2 =0.9916,P < 0.05),Eighteen of the 42 patients (43%) were found have CTCs in peripheral blood.The detection rate of lung cancer cells was 0 at stage Ⅰ,the detection rate of lung cancer cells was 11.1% at stage Ⅱ,the detection rate of lung cancer cells was 62.5% at stage Ⅲ and the detection rate of lung cancer cells was 70% at stage Ⅳ.The positive rate of CTCs has no signification correlate with ages and gender of patients and tumor size (P > 0.05),has signification with the clinical stage (P < 0.05).None of the peripheral blood samples of the 20 healthy subjects analyzed was found to have CTCs.Conclusions This novel immunomagnetic separation technology is a sensitive and specific method,which provides a new tool allowing for feasible and specific detection of CTCs in lung cancer patients.The level of CTCs increases with the clinical stage and tumor size increased,which has important value to discover the early stage micrometastasis and redefine the clinical stage.But further multicenter and large sample clinical research are needed to confirm its clinical value.
8.Inhibitory Effect of Baihu Decoction on Adverse Reaction Induced by Photodynamic Therapy in Malignant Tumor Patients
Chuang CHEN ; Wei CHEN ; Zuojun ZHANG ; Zhiqiang TAN ; Hanzhong LI ; Zhifen HUANG ; Zhuozheng HUANG
Journal of Guangzhou University of Traditional Chinese Medicine 1999;0(02):-
[Objective] To observe the inhibitory effect of Baihu Decoction (BD) on adverse reaction induced by photodynamic therapy (PT) in malignant tumor patients. [Methods] Fifty-six malignant tumor patients receiving PT were equally randomized into group A and group B. The two groups received routine symptomatic western medicine treatment, and anti-inflammation treatment. Group A was treated with BD additionally. [Results] Incidence of fever was 28.6% and that of pain was 85.7% in group A, and 57.1% and 100% in group B respectively (P 0.05). Duration of fever, pain and edema was respectively 2.73?0.58, 6.71?0.81 and 5.25?0.94 days in group A, and respectively 4.56?0.76, 9.12?1.14 and 8.84?1.01 days in group B (P 0.05). In group A, there were 11 patients with white blood cell (WBC) count over 10?109/L, and the average WBC count was (10.6?2.36)?109/L; there were 18 patients with WBC count over 10?109/L, and the average WBC count was (14.3?3.17)?109/L. The difference of WBC count was significant between groups A and B (P
9.Correlation between new arterial stiffness indexes and early atherosclerosis in middle-aged population
Yaping ZHANG ; Ping YIN ; Zuojun XU ; Yushui XIE ; Changqian WANG ; Yuqi FAN ; Fuyou LIANG ; Zhaofang YIN
Chinese Journal of cardiovascular Rehabilitation Medicine 2017;26(2):121-124
Objective:To explore predictive value of arterial velocity-pulse index (AVI) and arterial pressure-volume index (API) for early atherosclerosis (AS) in middle-aged population.Methods:A total of 138 middle-aged patients hospitalized in our hospital from May 2016 to Nov 2016 were enrolled.According to coronary angiography (CAG) outcomes, they were divided into AS group (n=86) and non-AS group (n=52).Before CAG, AVI, API and brachial-ankle pulse wave velocity (baPWV) were collected in two groups.General data and arterial stiffness indexes were compared between two groups, and the correlation among AVI, API, baPWV and general data were analyzed.Results:Compared with non-AS group, there were significant rise in AVI [(20.4±4.2) vs.(22.8±5.3)] and baPWV [(14.0±2.5) m/s vs.(16.3±3.0) m/s] in AS group,P<0.01 both.AVI was significant positively correlated with age, SBP, DBP, mean arterial pressure (MAP), pulse pressure (PP), API and baPWV (r=0.219~0.471, P<0.05 or <0.01);API was significant positively correlated with age, BMI, SBP, DBP, MAP, PP, brain natriuretic peptide (BNP), AVI and baPWV (r=0.213~0.726, P<0.05 or <0.01);baPWV was significant positively correlated with age, BMI, SBP, DBP, MAP, PP, AVI and API (r=0.201~0.472, P<0.05 or <0.01).Multi-factor linear regression analysis indicated that SBP was influencing factor for AVI (B=0.162,P=0.001), SBP, DBP and HDL-C were influencing factors for API (B=-0.166~2.146,P<0.05 or <0.01), SBP and HDL-C were influencing factors for baPWV (B=0.116,-3.009,P<0.01 both).Conclusion:Both elevated AVI and baPWV can predict atherosclerosis in middle-aged population
10.Application and practice of standardized patient teaching of online appointment system for interns in cardiology department
Haiyi HUANG ; Qizhi CHEN ; Jingchao HU ; Junfeng ZHANG ; Changqian WANG ; Zuojun XU
Chinese Journal of Medical Education Research 2021;20(3):316-318
Objective:To explore the effect of online appointment system of standardized patients (SP) in cardiology practice teaching.Methods:The undergraduate students who entered the cardiology department of Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine for clinical practice in 2018 and 2019 were selected as teaching objects, and they were divided into traditional teaching group ( n=30) and appointed SP teaching group ( n=30). After the teaching, SPSS 19.0 software was used for data analysis to compare the teaching effect of the two groups. Results:The scores of SP teaching group were higher than those of traditional teaching control group, with statistical significance ( P<0.05). Conclusion:Through constructing SP database and typical case database, online appointment system of SP for medical history inquiry and doctor-patient communication skills training can effectively solve the problems such as lack of clinical practice cases and doctor-patient contradiction, and greatly improve the teaching efficiency.