1.Implantation of Homologous Cancellous Bone and Autologous Red Marrow under Endoscope for Bone Nonunion and Bone Defect
Liangqi KANG ; Wei CHEN ; Lingling SHI
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To investigate the effectiveness of implantation of homologous cancellous and autologous red marrow under endoscope in the treatment of traumatic bone nonunion or bone defect.MethodsTotally 25 patients with traumatic bone nonunion or bone defect were enrolled in this study.The lesion involved the tibia bone in 9 cases,the femur in 13,and the humerus in 3.The grafts were sized 1 to 6 cm in length(mean,2.7 cm).Before the implantation of the cancellous bones,the scar fibrous tissues within the nonunion were removed completely by endoscopy,and then autologous red marrow obtained from the iliac crest was injected.ResultsAll the patients were followed up for 12 to 36 months(mean,25 months).The surgical wounds healed primarily in all of the cases without injuries to the blood vessels and nerves.Bony union was achieved within 4 to 9 months(mean,5.1 months) in 23 of the patients,the other 2 failed because of breaking and loosing of internal fixators.No patient developed re-nonunion and infection.ConclusionsImplantation of homologous cancellous and autologous red marrow under endoscope is effective for traumatic bone nonunion or bone defect with a low rate of complication and high rate of bony union.Since no need to harvest the ilium bone,the method is minimally invasive for the patients.
2.Effect of paraquat on lipid peroxidation monoamine neurotransmitter level in brain tissue of mice.
Qing CHEN ; Wei-jun KANG ; Rong ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(4):238-239
Animals
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Biogenic Monoamines
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metabolism
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Brain
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drug effects
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metabolism
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Female
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Lipid Peroxidation
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drug effects
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Male
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Mice
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Paraquat
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toxicity
3.The management of liver cancer with blood supply from parasitic vessels after transcatheter arterial chemoembolization
Changyuan WEI ; Ping KANG ; Jiansi CHEN
Chinese Journal of General Surgery 1993;0(02):-
50% was seen in 7 cases after TACE and PEI(30%),and the 1?3?5 year′s survival rate was 52%?35%? and 9%,respectively.Conclusions Adjuvant chemotherapy was hardly beneficial to the treatment of liver cancer with parasitic blood supply after TACE, while PEI enhanced effect of TACE as a supplementary therapy as judged by long term survival. The change of sIL-2R, AFP level was a sensitive indicator for the outcome of the treatment.
4.Correlations of enterobacteria DNA load in venous blood determined by real-time quantitative polymerase chain reaction with vital signs and blood cell count in febrile surgical patients
Junren KANG ; Enling MA ; Wei CHEN
Chinese Journal of Clinical Nutrition 2015;23(5):292-295
Objective To determine enterobacteria DNA load in venous blood of febrile surgical patients using real-time quantitative polymerase chain reaction (RQ-PCR), to study the correlations between DNA load and vital signs/blood cell count, and to compare the difference between different detection methods in terms of positive rates.Methods A total of 72 blood samples were obtained for bacterial cuhure and RQ-PCR.The correlations of enterobacteria DNA load with body temperature, heart rate, while blood cell count,and percentages of leukocyte and lymphocyte were then analyzed.Results The enterobacteria positive rate determined by RQ-PCR (63.89%) was significantly higher than that by bacterial culture (9.72%) (F =4.383, P =0.036).The DNA load was significantly correlated with both body temperature and heart rate (P =0.006, r =0.323;P =0.000, r =0.411), but not with white blood cell count, percentages of leukocyte and lymphocyte, and age (P=0.438, r=0.093;P=0.825, r=0.027;P=0.451, r=-0.090;P =0.096, r =0.198).Conclusions RQ-PCR can quickly determine the enterobacteria DNA load in peripheral blood with high sensitivity.Routine blood cell count may not accurately reflect the enterobacteria DNA load in blood.Body temperature and heart rate may be influenced by various factors.
5.CT and MRI imaging features of primary ventricular lymphoma
Hong LU ; Haitao LI ; Wei CHEN ; Jiafei CHEN ; Kang CHEN
Journal of Regional Anatomy and Operative Surgery 2017;26(1):55-57,58
Objective To evaluate the CT and MRI imaging features of primary ventricular lymphoma ,so as to provide a reference for the diagnosis and differential diagnosis of the disease .Methods The clinical data and imaging findings of primary ventricular lymphoma in one case was retrospectively analyzed with literature review and compared with primary lymphoma in parenchymal brain .Results Slightly high density tumor presented with regular shape in the trigone of lateral ventricles on CT findings , and slightly low signal intensity on T 1 and slightly high signal intensity on T 2 appeared on MRI findings with small cystic necrosis in tumour .An enhancement scan showed obviously enriched, and there was perilesional edema.After 14 day’s dehydration treatment, rechecked indicated that the lesions were significantly en-larged, the shape were irregula , the area of cystic necrosis was enlarged , heterogeneous enhanced scanning were enhanced , perilesional ede-ma became more heavier , and the imaging feature of “closed fist” appeared .It was proved to be diffuse large B cell lymphoma with surgical pathologic examination , and there was no lymphoma in other regions of the body with whole body PET-CT examination , which was clinically diagnosed as primary ventricular lymphoma .Conclusion Primary ventricular lymphoma is rarely reported ,and it has similar imaging mani-festations with primary lymphoma in parenchymal brain .The combination of multiple imaging modalities will be helpful to diagnosis and dif -ferential diagnosis for the suspected patients .
6.A study on the clinical application of all-in-one-mixed and pre-mixed parenteral nutrition preparations
Wei CHEN ; Chunling ZHOU ; Hailong LI ; Junren KANG ; Xiurong WANG
Chinese Journal of General Surgery 2011;26(9):762-765
ObjectiveTo evaluate the parenteral nutrition formula's character of all-in-one-mixed preparation and pre-mixed preparation applied for hospitalized patients in China.MethodsWe collected parenteral nutrition (PN) prescriptions in hospitalized patients with various diseases at dispensing centers of 6 hospitals in different areas of China. Statistic analysis was made by nutrients application, total liquid, nonprotein calories, total nitrogen, ratio of non-protein calories and total nitrogen, and ratio of glucose and fat. A comparison was made between all-in-one-mixed and pre-mixed preparation as to all the indices.Results The nutrients supply in all-in-one-mixed PN preparation, as well as in the pre-mixed PN preparations of 3 different energy degrees can meet the basic nutrition requirements of most patients. The total nitrogen supply in all-in-one-mixed PN prescriptions meets nutrition requirements in most patients, but the ratio of non-protein calories and total nitrogen[( 180-250) : 1]and the ratio of glucose and fat (0. 56-1.26)were significantly different from what a doctor would recommend[( 100-150) : 1, 1.0]. While the ratios in the pre-mixed PN preparation on 3 different energy degrees are more consistent with recommeded values,which are at 167 and 0. 8 respectively.ConclusionsAll-in-one-mixed and pre-mixed PN preparation have their own individual advantages and limits, and both of them can meet the requirements of most hospitalized patients. More attention should be paid to the nutrients proportion when doctors prescribe all-in-one-mixed PN preparations.
7.Analysis of detection of prenatal coagulation four indices,D-dimer and platelet in pregnant women
Yu TIAN ; Mengying MA ; Yanyan XU ; Rui CHEN ; Wei KANG
International Journal of Laboratory Medicine 2014;(16):2156-2158
Objective To investigate the clinical significance of the antenatal detection of four indices of coagulation(PT,APTT, TT,FIB),D-dimer(DD)and platelet(PLT)in the judgment of parturient coagulation function and bleeding risk.Methods 795 pregnant women and childbearing age non-pregnant women with physical examination in this hospital from June 2012 to September 2013 were collected and divided into the normal pregnancy group(early pregnancy,middle pregnancy,late pregnancy,parturient pe-riod),obstetric accident group,pregnancy complicating other disease group and healthy control group.At the same time,PT, APTT,TT,FIB,DD and PLT were detected and the related statistical analysis was conducted.Results DD and FIB in the normal pregnancy group were significantly higher than those in the healthy control group(P<0.05),PT and APTT were significantly low-er than those in the healthy control group(P <0.05),TT had no statistically significant difference between these two groups(P >0.05 );DD and FIB in the obstetric accident group and the pregnancy complicating other disease group were significantly higher than those in the normal pregnancy group(P <0.05),while PT was significantly lower than that in the normal pregnancy group(P <0.05).PLT in the obstetric accident group and the pregnancy complicating other disease group was significantly lower than that in the normal pregnancy group(P <0.05).The sensitivity and specificity of the combined detection of 3 indices in diagnosing the ob-stetrical accidents were greatly superior to those of the single index detection or the combined detection of two indices.Conclusion The prenatal combination detection of four coagulation indices,DD and PLT can preliminarily judge the coagulation status of preg-nancy period in pregnant women,help to treat abnormal bleeding of pregnant women an possess the important guidance significance in formulating the labor scheme and preventing the occurrence of obstetric accidents.
8.Efficacy of ultrasound-guided continuous brachial plexus block for analgesia after fixation of upper extremity fractures in pediatric patients
Liyan ZHAO ; Wei ZHANG ; Kexin CHEN ; Dingkun KANG ; Guojun YU
Chinese Journal of Anesthesiology 2017;37(7):781-783
Objective To evaluate the efficacy of ultrasound-guided continuous brachial plexus block for analgesia after fixation of upper extremity fractures in the pediatric patients.Methods Sixty American Society of Anesthesiologists physical status Ⅰ pediatric patients of both sexes,aged 3-10 yr,weighing 13-46 kg,with body height of 97-152 cm,scheduled for open reduction and internal fixation of distal humeral fractures,were selected and divided into 2 groups (n =30 each) using a random number table:intravenous analgesia group (group Ⅴ) and continuous brachial plexus block group (group B).Surgery was completed under brachial plexus block combined with general anesthesia in the two groups.At the end of surgery,patient-controlled intravenous analgesia was used in group Ⅴ,and continuous brachial plexus block was performed with 0.1% ropivacaine 250 ml (background infusion 0.1 ml · kg-1 · h-1,bolus dose 0.2 ml/kg,lockout interval 30 min) in group B.Tramadol was given as rescue analgesic when necessary.Ramsay sedation scores were assessed and recorded at 2,4,8,12,24,36 and 48 h after surgery,and the development of over-sedation was recorded.The require,nent for rescue analgesics and development of respiratory depression,dizziness,nausea and vomiting,pruritus and urinary retention during analgesia were recorded.The development of adverse reactions such as vascular and nerve injury,local hematoma and pneumothorax was recorded in group B.Family's satisfaction with analgesia was assessed and scored.Results Compared with group Ⅴ,Ramsay sedation scores at 2-12 h after surgery,the incidence of oversedation,nausea and dizziness and requirement for tramadol were significantly decreased (P<0.05),and no significant change was found in the degree of family's satisfaction with analgesia in group B (P> 0.05).The adverse reactions such as vascular and nerve injury,local hematoma or pneumothorax were not found in group B.Conclusion Ultrasound-guided continuous brachial plexus block can be safely and effectively used for analgesia after fixation of upper extremity fractures in the pediatric patients.
9.Drug-resistant Gene of Meticillin-resistant Coagulase Negative Staphylococcus in Children Septicemia
Hongbing HU ; Wei XIA ; Shixiu KANG ; Baohua XIONG ; Qiong CHEN
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To study the distribution of drug-resistant gene of meticillin-resistant coagulase negative Staphylococcus(MRCNS) in children septicemia.METHODS The total MRCNS isolates were 40,and whether in there harbored genes mec,erm and qac was studied.RESULTS Among 40 CNS strains,in there harbored genes mec,erm,and qac were 38(95.0%),30(75.0%) and 18(45.0%),respectively.CONCLUSIONS MRCNS in children septicemia where harbor drug resistance genes is very serious,so we should pay great heed to its effective control.
10.Establishment and characterization of a healthy donor's ??T cell clone
Xiaojuan HE ; Ning KANG ; Hui CHEN ; Lianxian CUI ; Wei HE
Basic & Clinical Medicine 2006;0(01):-
Objective Establishment and characterization of healthy donor's ??T cell clones.Methods ??T cells were cloned by limiting dilution after positive sorting with 60Co irradiated allogeneic PBMC as feeder cells.Flow cytometry analysis and molecular biology technique were then used to identify ??T cell clones.MTT assay was used to verify their proliferation after incubated with epitope peptides recognized by ??T cells.Results A ??T cell clone had been established.The subtype of this clone was V ?9 V ?2 without expression of CD4 and CD8.Further studies indicated that epitope peptide EP6 could not only specifically bind to ??T cell clone but also trigger the proliferation of ??T cell clone.Conclusion A healthy donor's ??T cell clone was successfully established,which laid a solid foundation for further study on ??T cells.