1.Modified cervical single open-door laminoplasty combined with segmental lateral screw fixation for the treatment of multilevel cervical spondylotic myelopathy
Clinical Medicine of China 2017;33(7):643-647
Objective To compare the clinical effects of modified single open-door laminoplasty combined with segmental lateral screw fixation with conventional single open-door combined with continuous screw fixation in the treatment of multilevel cervical spondylotic myelopathy (MCSM).Methods Retrospective analysis was used to analyze the fifty-five cases of MCSM who underwent posterior operation in Lianyungang Hospital Affiliated to Xuzhou Medical University from March 2009 to January 2017.Among them,26 cases in the modified group were treated by modified single open-door laminoplasty combined with segmental lateral screw fixation;29 cases in the traditional group were treated by conventional single open-door combined with continuous screw fixation.JOA score collected before the operation and at the last time of the follow-up,the cervical spine mobility,cervical curvature,cervical axial symptom,C5 nerve root palsy and the incidence rate of screw fracture in both groups were compared.Operation time and the intraoperative blood loss were recorded.Results 55 cases were all followed up.The cervical spine mobility at the last time of the follow-up in the modified group was significantly higher than that of the traditional group ((39.63°±5.98°) vs.(36.14°±6.05°),P=0.036).The cervical curvature in the modified group was higher than that of the traditional group ((19.83°±5.61°) vs.(16.02°±7.05°),P=0.030).The operation time and intraoperative blood loss in the modified group were significantly lower than those of the traditional group ((116.3±13.2) min vs.(128.7±14.3) min,(186.7±39.8) ml vs.(228.7±42.5) ml,P=0.002,0.000).In the modified group,the proportion of patients with postoperative cervical axial symptom was 15.38%,the rate of C5 nerve root palsy cases was 8.69%,compared with 48.27% and 34.48%,respectively in the control group,the difference between the two groups was statistically significant (P=0.011,0.022).In the traditional group,2 cases of screw fracture were found at the last follow-up,while there was no such case in the modified group.Conclusion The modified cervical single open-door laminoplasty combined with segmental lateral screw fixation can obtain good effect of nerve decompression,maintain cervical mobility and cervical curvature,reduce the occurrence of postoperative cervical axial symptom,C5 never root palsy,screw fracture and other complications,is a safe and effective surgical method.
3.Healing of gingiva after electrosurgical gingivectomy
Zhang ZHENG ; Liu YUHUA ; Xu JUN
Journal of Practical Stomatology 1995;0(04):-
Objective:To compare the healing of gingiva after electrosurgical gingivectomy with different power outputs and electrodes. Methods:15 rabbits were randomly assigned to 3 groups which used different electrodes: needle electrode, long loop electrode and loop electrode. 1 animal was chosen as control in each group. Free gingiva of anterior teeth had been removed 2 mm in height with different power output and electrosurgical knife. Gingival specimens were harvested for histopathological study on days 1,7,14,and 21 after operation. Statistical analysis was performed on wound healing. Results:Electrical knife with medium power output caused significantly higher degree of inflammation than other techniques(P0.05). Conclusion:When electrosurgery is used on gingiva, there is no significantly difference with different electrodes. Longer observation is needed after gingival electrosurgery with medium power output electrical knife.
4.Construction of Detenial Sigmoid Neobladder after Laparoscopic Radical Cystectomy:Report of 71 Cases
Chunxiao LIU ; Shaobo ZHENG ; Yawen XU
Chinese Journal of Minimally Invasive Surgery 2001;0(04):-
Objective To report our experience on construction of detenial sigmoid neobladder after laparoscopic radical cystectomy in 71 cases.Methods From August 2002 to May 2006,a total of 71 patients with invasive bladder carcinoma underwent construction of detenial sigmoid neobladder after laparoscopic radical cystectomy in our hospital.After the bladder was excised by laparoscopy,a 5-to 7-cm incision was made on the abdomen to remove the resected tissues,and then a 15-to 20-cm sigmoid colon was resected,the two colic bands opposite to the mesentery and the circular muscle and seromuscular layers between them were removed to construct a detenial sigmoid neobladder.Afterwards,the neobladder was anastomosed with the posterior urethra.Laparoscopic anastomosis was performed in 26 of the cases.Results The operation time was 240-390 min totally in the 71 cases.Laparoscopic radical cystectomy was finished in 80-270 min(mean,180 min),and the open surgery was completed in 160-240 min(mean 140 min).Oral intake was started at day 4-8 postoperation,ureteral stents were removed at week 3-4,and urethral catheter was removed at week 4.Three months after the operation,the mean intra-bladder pressure was 22.0 cm H2O(17-38 cm H2O),average bladder reservoir was 340 ml(200-410 ml),volume of residual urine was less than 25 ml in all the cases(
5.Update of VEGF in digestive system tumors
Wei XU ; Zheng LIU ; Guozhong JI
Journal of Medical Postgraduates 2003;0(10):-
Cancers of the digestive system account for a large portion of malignant tumors in humans,and the trend is on the rise.The formation of neovascularization is the dominant factor in the metastasis of tumors.The vascular endothelial growth factor(VEGF) is well documented as the most potent inducer of angiogenesis.It promotes the formation of new blood vessels in several aspects,such as proliferation of endothelial cells,endothelial cell migration and increased vascular permeability.So VEGF is regarded as an important factor in the development of digestive system tumors.The purpose of this review is to investigate the relationship between VEGF and digestive system tumors.
6.A survey of oral health cognitive behaviors and impact factors of the elderly people in Jining
Guohui LIU ; Yanliang ZHENG ; Xia XU
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(5):450-452
ObjectiveTo learn the oral health cognitive behaviors and impact factors of the elderly people in Jining.MethodsThe number of 1026 elderly people were investigated by stratified cluster sampling method using the self-made questionnaire of oral heahh behaviors of the elderly people.Results ①In the number of 1026 elderly people,denture lost teeth accounted for 5.3%.There was no gendr differece in denture lost teeth( χ2=0.162,P > 0.05 ) but age( t =- 9.089,P < 0.01 ).②Brush teeth every day of the test total 86.3%,56.4%after dinner would gargle,0.6% daily flossing,35.4% used shaft brush.③The oral health behavior was related to the elderly pepole' gender,cultural level,economic income and participate in the oral health education activities based on the binary logistic.ConclusionThe old oral health behaviors are affected by various factors.To improve oral health awareness and promote oral health,the further strengthening community propaganda and education about oral health and control measures should be reinforced on the basis of the old oral health cognitive and behavioral status.
7.Performance verification on ROCHE cobas 8000 automatic biochemical analyzer
Xu MEI ; Zheng LIU ; Guangbin QIU
International Journal of Laboratory Medicine 2014;(16):2235-2236
Objective To verify the analytical performance of the Roche cobas 8000 automatic biochemical analyzer.Methods The intra-batch and inter-batch precisions,accuracy,linearity and reference interval were validated according to the Clinical and La-boratory Standards Institute (CLSI)documents (EP5-A2,EP15-A2,EP6-A;C28-A2 ).Results The intra-batch precision was 0.5%-2.3% and the inter-batch precision was 0.8%-3.11%,which were all less than 1/4 Tea(CLIA'88).The detection results of various items had better correlation with the target values(r2 >0.99);the linear range of various detected items were in line with the linear range provided by the specification;the quotative biological reference range conformed to the group of this laboratory services.Conclusion The various performance indexes of the Roche cobas 8000 automatic biochemical analyzer conform to the qual-ity requirements and this analyzer can be used in clinical biochemical detection work..
8.Neonatal tuberous sclerosis complex in 8 cases
Xu ZHENG ; Jingwen WENG ; Hong LIU
Chinese Journal of Applied Clinical Pediatrics 2017;32(12):912-915
Objective To investigate the clinical characteristics of neonatal tuberous sclerosis complex (TSC).Methods A total of 134 patients were admitted and diagnosed as TSC in Beijing Children′s Hospital,Capital Medical University from September 2006 to September 2015.The clinical characteristics of TSC in 8 patients who had clinical symptoms initiating from the neonatal period (skin lesion,neurologic abnormality,etc.) were analyzed,so as to conduct the auxiliary examinations (skin biopsy,ultrasonic cardiogram,cranial imaging) and the follow-up results.Results Among 8 patients,4 were diagnosed as TSC in the neonatal period while other 4 were diagnosed at later period from 4 months to 14 years old.Six patients had skin lesions in neonatal period,accounting for 75% of 8 patients,with predominant symptoms:hypomelanotic macules (5 cases),angiofibroma (2 cases),and shagreen patch (1 case).Cardiac abnormalities in neonatal period mainly included cardiac rhabdomyoma,which were characterized by high incidence,multi-regional occurrence,and wide distribution,noticed in 4 patients (50%).Ultrasonic cardiogram showed a mass in 4 patients with moderate-strong echo,uniform texture and clear boundary,and slight effect on tricuspid valve blood flows (in 1 case).Electrocardiogram abnormalities were found in 1 case,like atrial premature beats with intraventricular aberrant conduction,and accelerated atrial escape.Neurologic abnormality of neonatal TSC could present convulsive seizures.Cranial imaging lesions showed subependymal nodules (3 cases),leukodystrophy (2 cases),and giant-cell astrocytoma (1 case).Evidence for TSC2 gene positive and heterozygous mutation was identified in 1 case.The nucleic acid mutation site was at c.268C>T (E4),and the amino acid mutation was p.90Q>X.The mutant effect was nonsense mutation,which could lead to premature termination of protein translation.Conclusion The clinical characteristics of neonatal TSC may involve multi-system lesions,most commonly seen in the skin,cardiac,and ner-vous system.Neonatal physical examinations,cranial CT/magnetic resonance imaging and cardiac ultrasound screening should be done for the suspected TSC patients,and genetic diagnosis may contribute to the early diagnosis of the disease.
9.Effect of Escitalopram Angumentation on Panic Disorder: 40 Cases Report
Jingbo XU ; Xun ZHENG ; Zhenjing LIU
Chinese Journal of Rehabilitation Theory and Practice 2011;17(5):420-421
Objective To investigate the efficacy and safety of Escitalopram on panic disorder. Methods 40 patients were treated with Escitalopram. All patients were evaluated with Hamilton Anxiety Scale, Self-Rating Anxiety Scale and Adverse Drug Reactions Scale. Results All the patients released from panic since the second week after treatment, except one patient dropped because of side-effects. Other side-effects relieved during the course. Conclusion Escitalopram was effective and safe on panic disorder.
10.Factorial analysis of root canal irrigants and cements on coronal microleakage after cementing metal post-cores.
Zheng ZHENG ; Cuiling LIU ; Jing LAN ; Xu GAO
West China Journal of Stomatology 2014;32(3):242-245
OBJECTIVETo evaluate the effect of different root canal irrigants and cements on coronal microleakage and the interaction effects after cementing metal post-cores.
METHODSNinety newly extracted single-rooted mandibular human premolars were endodontically treated. Post spaces were prepared in the root canals, and Co-Cr post-cores were cast routinely. The specimens were randomly divided into six groups (n = 15) via a two-way factorial design method. The irrigant factors (A) included A1: no irrigant (75% alcohol wiping), A2: 3% H2O2 + 0.9% NaCl, and A3: 15% ethylenediamine tetraacetic acid (EDTA) + 5.25% NaClO. The cement factors (B) included B1: zinc polycarboxylate cement, and B2: glass ionomer cement. The specimens received treatments based on the grouping of A1B1, A1B2, A2B1, A2B2, A3B1, and A3B2. All samples were sectioned longitudinally after being immersed in India ink for three weeks. The microleakages were observed using a stereomicroscope. The SPSS 13.0 software package was used for factorial analysis.
RESULTSThe mean microleakage scores and standard deviations were as follows: Group A1BI: (1,192.59 +/- 417.84) microm, Group A1B2: (1,317.38 +/- 527.35) microm, Group A2B1: (1,429.33 +/- 482.68) microm, Group A2B2: (1,026.79 +/- 459.49) microm, Group A3B1: (1,448.29 +/- 561.02) microm, and Group A3B2: (1,922.47 +/- 678.86) microm. The A2B2 group showed minimum microleakage, whereas the A3B2 group showed maximum microleakage. The microleakage degrees among different irrigants presented significant statistical difference (P < 0.05), but the two cements showed no significant difference (P > 0.05). An interactive effect on the microleakage existed between the irrigants and the cements after cementing the metal post-cores (P < 0.05).
CONCLUSIONWhen cementing metal post-cores, the coronal microleakage following 3% H2O2 + 0.9% NaCl irrigation combined with glass ionomer cement can be reduced. The combined application of 15% EDTA + 5.25% NaClO and glass ionomer cement significantly aggravates microleakage.
Cementation ; Dental Cements ; Dental Leakage ; Glass Ionomer Cements ; Humans ; Hydrogen Peroxide ; Metals ; Post and Core Technique ; Resin Cements ; Root Canal Irrigants