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1.
Journal of Clinical Hepatology ; (12): 1106-1113, 2022.
Article in Chinese | WPRIM | ID: wpr-924785

ABSTRACT

Objective To systematically evaluate the short-term efficacy and safety of robotic pancreaticoduodenectomy (RPD) versus traditional laparoscopic pancreaticoduodenectomy (LPD), and to provide a reference for clinical research and practice. Methods Chinese and English databases such as PubMed, Embase, the Cochrane Library, CNKI, Wanfang Data, and VIP were searched to include the cohort studies comparing the clinical efficacy of robot-assisted laparoscopy and traditional laparoscopy in pancreaticoduodenectomy. The quality of included articles was evaluated based on Cochrane systematic review, and Stata15.1 software was used to perform a meta-analysis of related outcome measures extracted. Results A total of 12 cohort studies were included, with 1630 patients in total, and there were 683 patients in the RPD group and 947 patients in the LPD group. The meta-analysis showed that there were significant differences between the RPD group and the LPD group in postoperative bleeding rate (odds ratio [ OR ]=0.66, 95% confidence interval [ CI ]: 0.48-0.91, P < 0.05), rate of conversion to laparotomy ( OR =0.41, 95% CI : 0.30-0.56, P < 0.05), estimated intraoperative blood loss (weighted mean difference [ WMD ]=-0.77, 95% CI : -1.33 to -0.22, P < 0.05), and length of postoperative hospital stay (WMD=-0.45, 95% CI : -0.80 to -0.11, P < 0.05). Country of publication might be one of the sources of heterogeneity in the incidence rate of postoperative complications between subgroups ( P < 0.05). Conclusion Compared with traditional LPD, da Vinci RPD can reduce postoperative bleeding rate, intraoperative blood loss and rate of conversion to laparotomy and shorten postoperative hospital stay, and meanwhile, it does not increase the operation time and the incidence rate of postoperative complications. Both surgical procedures are safe and feasible.

2.
Journal of Clinical Hepatology ; (12): 724-728, 2022.
Article in Chinese | WPRIM | ID: wpr-922989

ABSTRACT

TGR5 is a bile acid-activated G protein-coupled receptor and plays an important role in the physiological and pathological processes of the biliary system. This article describes the normal expression of TGR5 in the liver and bile duct under normal physiological conditions and its functions including the regulation of bile acid secretion and metabolism and cytoprotection. This article also summarizes the changes in the expression and function of TGR5 under pathophysiological conditions and the mechanism of TGR5 in affecting the development and progression of biliary tract diseases through inflammatory response and cell proliferation and apoptosis. TGR5 may be a potential target for the treatment of biliary tract diseases in the future.

3.
Article in Chinese | WPRIM | ID: wpr-904662

ABSTRACT

@#Kommerell's diverticulum is a rare congenital abnormal aortic development. The diverticulum can occur in both left and right aortic arches, from which an aberrant subclavian artery rises to the contralateral side. Only a small number of patients with Kommerell's diverticulum present symptoms. Dysphagia, dyspnea, chest discomfort and upper extremity blood pressure difference are common in adult patients. The risk of aortic dissection or aortic aneurysm rupture is higher in such patients than that in patients with normal aorta. Early surgical intervention is recommended to improve the prognosis. Treatment options include open surgical repair, hybrid operation and total endovascular repair. The choice of surgical method depends on the specific anatomy of patients, the patients' state and the preference of surgeons. This paper reviewed and summarized the surgical methods and early results of the treatment of Kommerell's diverticulum reported in the literature from 2015 to 2020.

4.
Organ Transplantation ; (6): 748-2021.
Article in Chinese | WPRIM | ID: wpr-904560

ABSTRACT

At present, surgical and endoscopic interventions are mainly employed to treat ischemic-type biliary lesion (ITBL). Due to the disadvantages of single therapeutic strategy, high difficulty and expensive medical cost, it is urgent to identify a novel treatment option. Mesenchymal stem cell (MSC) has become potential seed cell for tissue and organ repair in regenerative medicine due to its high self-renewal capability, multi-directional differentiation potential, low immunogenicity and immunoregulatory effects, etc. Recent studies have demonstrated that MSC transplantation into ITBL animal models may not only home to the injured area, but also promote the repair of injured biliary tract tissues through anti-apoptotic and pro-angiogenic effect, which indicates that MSC transplantation is expected to become a new strategy for the treatment of ITBL. In this article, the biological characteristics of MSC, the mechanism and clinical application of MSC transplantation for ITBL were reviewed.

5.
Chinese Journal of School Health ; (12): 1233-1236, 2021.
Article in Chinese | WPRIM | ID: wpr-886673

ABSTRACT

Objective@#To understand the status of vitamin D deficiency and high blood pressure in primary and middle school students aged 7 to 17 years old in Chongqing, and to explore the correlation between vitamin D deficiency and high blood pressure in children and adolescents.@*Methods@#From 2016 to 2017, a total of 1 360 primary and middle school students, aged 7 to 17 years old, were selected from three rural and three urban sites in Chongqing using multistage stratified random sampling. This study carried out a questionnaire survey, and participants underwent a physical examination which included blood pressure and serum vitamin D assessments.@*Results@#The deficiency and insufficiency rates of vitamin D were 9.71%, and 62.57%, respectively. The high blood pressure rate was 25.88%. Multivariate Logistic regression analysis showed that after adjusting for age, economic status, waist circumference, BMI classification, and family history of hypertension, the risk of hypertension was 1.42 times that of the normal group (P<0.05), and the risk of high systolic blood pressure was 1.59 times that of the normal group (P<0.05).@*Conclusion@#The deficiency and insufficiency rate of vitamin D among children and adolescents aged 7 to 17 years old in Chongqing was high, and the phenomenon of high blood pressure was prominent. Students with vitamin D deficiency and insufficiency were more likely to have high blood pressure.

6.
Chinese Journal of School Health ; (12): 667-670, 2021.
Article in Chinese | WPRIM | ID: wpr-877123

ABSTRACT

Objective@#To examine the vitamin A status of children and adolescents aged between 6-17 years old in Chongqing, and to analyze the influencing factors of vitamin A deficiency, providing a scientific basis for nutritional improvement measures.@*Methods@#From 2016 to 2017, a multi-stage random sampling method was used to select approximately 1 508 children and adolescents aged between 6-17 years old from three rural and three urban locations in Chongqing. This study carried out a questionnaire survey and laboratory testing, and the statistical analysis was performed using SPSS version 25.0.@*Results@#The mean vitamin A level was (1.45±0.42)μmol/L, while the prevalence of vitamin A deficiency and the subclinical deficiency rate were 0.46% and 13.46%, respectively. The binary Logistic regression analysis revealed that the following factors were associated with a lower risk of vitamin A deficiency:overweight and obese students(OR=0.51); students whose mothers had a high school education or above(OR=0.35, P=0.01); students from big cities; and higher quartile albumin levels (Q 3 and Q 4). Students who did not eat meat each day(OR=2.05), students aged 6-8 years old, and students with C-reactive protein in the third (OR=2.12) and fourth (OR=4.54) higher quartiles were at a higher risk of vitamin A deficiency.@*Conclusion@#The subclinical vitamin A deficiency rate was relatively high among children aged 6-17 years old in Chongqing. Measures including nutritional education, reasonable diets, and nutritionally fortified food or fortifiers should be used when necessary.

7.
Chinese Journal of Urology ; (12): 871-872, 2020.
Article in Chinese | WPRIM | ID: wpr-869776

ABSTRACT

The incidence of testicular infarction secondary to epididymal-orchitis is extremely low. It usually manifests as acute testicular enlargement and pain, which requires differentation with testicular tumors and testicular torsion. This article reported a case with 10 days unsatisfied conservative treatment. Scrotal exploration operation revealed no obvious formation of abscess cavity. Subdivision of spermatic cord sheath, testicular sheath reversal drainage, and testicular sheath decompression treatment were performed. The pain of the patient relieved significantly after surgery. No abnormality was recorded within 6 months follow-up.

8.
Chinese Pharmaceutical Journal ; (24): 396-401, 2020.
Article in Chinese | WPRIM | ID: wpr-857770

ABSTRACT

OBJECTIVE: To evaluate the bacteriostatic efficacy of diclofenac sodium eye drops and to explore the reasonable dose of benzalkonium chloride, ethylparaben and thimerosal in diclofenac sodium eye drops. METHODS: According to the method of bacteriostatis effect test in 2015 edition of Chinese Pharmacopoeia (Ch.P),and Escherichia coli, Staphylococcus aureus, Pesudomonas aeruginosa, Candida albicans and Aspergillus niger as test strains,the bacteriostatis effect of diclofenac sodium eye drops from 10 batches of the samples was determined. Also, the concentration gradient of benzalkonium chloride, ethylparaben and thimerosal in diclofenac sodium eye drops was designed to investigate the optimum bacteriostatic concentration. RESULTS: The samples from 3 manufacturers could reach level B, no sample could reach level A,and those from 7 manufacturers did not comply with the specification. When the concentration of thimerosal was 0.01 mg•mL-1 and the concentration of ethylparaben was 0.3 mg•mL-1 in diclofenac sodium eye drops, the bacteriostatic efficacy could reach level B. When the concentration of benzalkonium chloride was 0.01 mg•mL-1, the bacteriostatic efficacy could reach level A. CONCLUSION: The bacteriostatis effect of diclofenac sodium eye drops from 10 batches of the samples is not good, It is recommended that these manufacturers should optimize the type and concentration of antimicrobial agents and optimize their formulation based on both biological tests and physical-chemical tests to ensure drug safety.

9.
Article in English | WPRIM | ID: wpr-833738

ABSTRACT

Background@#Bovine papilloma is a neoplastic disease caused by bovine papillomaviruses (BPVs), which were recently divided into 5 genera and at least 24 genotypes. @*Objectives@#The complete genome sequence of BPV type 15 (BPV Aks-02), a novel putative BPV type from skin samples from infected cows in Southern Xinjiang China, was determined by collecting warty lesions, followed by DNA extraction and amplicon sequencing. @*Methods@#DNA was analyzed initially by polymerase chain reaction (PCR) using the degenerate primers FAP59 and FAP64. The complete genome sequences of the BPV Aks-02 were amplified by PCR using the amplification primers and sequencing primers. Sequence analysis and phylogenetic analysis were performed using bio-informatic software. @*Results@#The nucleotide sequence of the L1 open reading frame (ORF) of BPV Aks-02 was 75% identity to the L1 ORF of BPV-9 reference strain from GenBank. The complete genome consisted of 7,189 base pairs (G + C content of 42.50%) that encoded 5 early (E8, E7, E1, E2, and E4) and 2 late (L1 and L2) genes. The E7 protein contained a consensus CX2CX29CX 2 C zinc-binding domain and a LxCxE motif. Among the different members of this group, the percentages of the complete genome and ORFs (including 5 early and 2 late ORFs) sequence identity of BPV Aks-02 were closer to the genus Xipapillomavirus 1 of the Xipapillomavirus genus.Phylogenetic analysis and sequence similarities based on the L1 ORF of BPV Aks-02 revealed the same cluster. @*Conclusions@#The results suggest that BPV type (BPV Aks-02) clustered with members of the Xipapillomavirus genus as BPV 15 and were closely related to Xipapillomavirus 1.

10.
Chinese Journal of Geriatrics ; (12): 885-888, 2019.
Article in Chinese | WPRIM | ID: wpr-755435

ABSTRACT

Objective To investigate the clinical efficacy and safety of transcatheter arterial chemoembolization(TACE) before percutaneous microwave ablation(MWA) on liver cancer in elderly patients.Methods Eighty elderly patients with primary liver cancer admitted into our hospital from January 2015 to December 2017 were randomly divided into the MWA group(n=32)and the MWA combined with TACE group(n=48).The MWA group received percutaneous microwave ablation,and the MWA combined with TACE group were treated with transcatheter arterial chemoembolization before percutaneous microwave ablation.The therapeutic effects were compared between groups.Results The total effective rate was increased in the MWA combined with TACE group vs.MWA group(79.2% vs.56.3%,x2 =7.064,P =0.008).The proportion of patients who presented with serum AFP level >200 mg/L had no significant difference between the combination group and the MWA group(68.8% vs.70.8%,x2 =0.040,P =0.842).While,after treatment,the proportion of patients who presented with serum AFP level decreased by > 50% was higher in the combination group than in the MWA group(79.2% vs.56.3%,x2 =7.064,P =0.008).There was no significant difference in the incidences of adverse reactions between the two groups (P > 0.05).Conclusions Compared with percutaneous microwave ablation,transcatheter arterial chemoembolization combined with percutaneous microwave ablation has a better efficacy and higher safety.

11.
Chinese Journal of Radiology ; (12): 46-49, 2019.
Article in Chinese | WPRIM | ID: wpr-745210

ABSTRACT

Objective To explore the value of C-arm CT in transjugular intrahepatic portosystemic shunt (TIPS).Methods Between June 2015 and October 2017,a total of 16 patients with cirrhosis complicated by upper gastrointestinal bleeding or massive ascites due to portal hypertention in our center were retrospectively enrolled in the study.Abdominal enhanced CT was routinely performed before surgery.Postprocessing images of portal vein were used as a guidance of TIPS in real time after integrated with intraoperative c-arm CT images during selective operations.Results The success rate of C-arm CT-guided TIPS was 100%.Portal vein angiography showed the position basically consistent with CT matched images reference position.No obvious abdominal hemorrhage,injury of biliary tract and other complications occurred in all patients.The mean number of needle passes was 2.1 ±0.9 passes(range of 1.0-4.0 passes),the mean time of portal vein entry was 4.3 ± 1.9 min (range of 2.0-8.0 min),the mean fluoroscopy period was 22.6 ± 4.8 min (range of 17.0-32.0 min),DAP was (256.2± 96.7)mGy/cm2.Conclusion C-arm CT-guided TIPS is technically feasible and safe.

12.
Chinese Pharmacological Bulletin ; (12): 802-809, 2019.
Article in Chinese | WPRIM | ID: wpr-857230

ABSTRACT

Aim: To observe the effect of cold exposure on browning of white adipose tissues in mice fed with high fat diet. Methods: Male 8-week-old C57BL/6J mice were randomly divided into HFD + 5 °C group and HFD + RT group, after 8 weeks of high-fat diet. Male 8-week-old C57BL/6J mice were randomly divided into normal + 5 °C group and normal + RT group, after 8 weeks of normal diet. Each group of mice were intervened for 2 h at different temperatures in the same time period for 8 weeks. Parameters, including body weight, food intake, inguinal white adipose tissue (iWAT) mass, brown adipose tissue (BAT) mass, blood glucose, blood lipids, leptin, adiponectin, adipose tissue pathology and in situ expression of uncoupling protein 1(UCP1) and prohibitin protein (PHB) in iWAT and BAT. Results: Compared with HFD + RT group, cold exposure not only significantly reduced body weight, blood glucose, iWAT weight/body weight ratio, TC, TG, LDL-C and leptin, but also increased food intake and BAT weight in high-fat diet mice. HE staining showed that iWAT and BAT cells became smaller and had multiple compartments. The iWAT had a browning trend. Immunohistochemistry showed that UCP1 and PHB protein in iWAT and BAT significantly increased. Conclusions: Cold exposure can counteract the weight gain caused by a high-fat diet, which may be related to the activation of brown adipose tissue and the induction of browning of white adipose tissues, increasing heat production and reducing white fat accumulation.

13.
Article in Chinese | WPRIM | ID: wpr-821257

ABSTRACT

Objective@#To investigate the values of T lymphocyte-bound complement activation products such as T-C3d and T-C4d, B lymphocyte-bound complement activation products such as B-C3d and B-C4d and erythrocyte-bound complement activation products such as E-C3d and E-C4d in the diagnosis of systemic lupus erythematosus (SLE). @*Methods@#Peripheral blood samples from 68 SLE patients, 70 patients with non-SLE autoimmune diseases and 68 healthy controls were collected randomly, and the expression levels of T-C4d, B-C4d, E-C4d, T-C3d, B-C3d and E-C3d in these samples were detected by flow cytometry. Meanwhile, antinuclear antibodies (ANA), anti-double stranded DNA antibodies (anti-dsDNA), peripheral blood cell count and other markers were also detected. The differences of cell-bound complement activation products in three groups were analyzed with the area under the receiver operating characteristic curve (AUC), nonparametric test, sensitivity and specificity. @*Results@#The specific median fluorescence intensity (SMFI) of T-C4d, B-C4d, E-C4d, T-C3d, B-C3d and E-C3d in SLE patients were significantly higher than those in the patients with non-SLE autoimmune diseases and healthy controls (all P<0.05). The SMFI (median \[P 25, P 75\]) of T-C4d, B-C4d and E-C4d in SLE patients were 3.8(1.2, 13.1), 22.1(6.2, 67.9) and 19.6(1.8, 52.4), respectively. The SMFI of T-C4d, B-C4d and E-C4d in SLE patients with reduced red blood cells and/or lymphocytes were significantly higher than that with normal red blood cell and lymphocyte count (all P<0.05). The AUCs of T-C4d, B-C4d, E-C4d, T-C3d, B-C3d and E-C3d were 0.711, 0.763, 0.663, 0.631, 0.611 and 0.615, respectively (all P<0.05). The sensitivity of the combination of T-C4d with B-C4d (73.5%) in the diagnosis of SLE was superior to that of anti-dsDNA (36.8%). @*Conclusion@#The cell-bound complement activation products (CB-CAPs) are specifically expressed in SLE patients, and their combination detection is helpful for the diagnosis of SLE.

14.
Gut and Liver ; : 569-575, 2019.
Article in English | WPRIM | ID: wpr-763869

ABSTRACT

BACKGROUND/AIMS: Cholangiocytes are capable of reabsorbing bile salts from bile, but the pathophysiological significance of this process is unclear. To this end, we detected the expression and distribution of bile acid transport proteins in cholangiocytes from normal rat liver and analyzed the possible pathophysiological significance. METHODS: Bile duct tissues of Sprague-Dawley rats were isolated by enzymatic digestion and mechanical isolation, and then divided into large and small bile duct tissues. Immunohistochemistry, real-time polymerase chain reaction and Western blotting were used to determine the expression of the apical sodium-dependent bile acid transporter (ASBT), ileal bile acid binding protein (IBABP), and basolateral organic solute transporter α (Ostα) in the biliary tract system of rats. Differences in the expression and distribution of these proteins were analyzed. RESULTS: In cholangiocytes, ASBT and IBABP were mainly expressed in cholangiocytes of the large bile ducts, in which the expression of both was significantly higher than that in the small ducts (p0.05). CONCLUSIONS: Bile acid transporters are expressed and heterogeneously distributed in rat bile ducts, indicating that bile acid reabsorption by cholangiocytes might mainly occur in the large bile ducts. These findings may help explore the physiology of bile ducts and the pathogenesis of various cholangiopathies.


Subject(s)
Animals , Bile Acids and Salts , Bile Ducts , Bile , Biliary Tract , Blotting, Western , Carrier Proteins , Digestion , Immunohistochemistry , Liver , Physiology , Population Characteristics , Rats , Rats, Sprague-Dawley , Real-Time Polymerase Chain Reaction
15.
Article in Chinese | WPRIM | ID: wpr-775359

ABSTRACT

With the rapid development of traditional Chinese medicine (TCM) in China as well as the implementation of the four most strict requirements, the quality of Chinese medicinal materials and decoction pieces had beem improved in recent years, however new problems and challenges were occurred. All the data of Chinese medicinal materials and decoction piece in special inspection,supervision test and evaluation inspection of drug administration department to were summarized and analyzed evaluate and analyze of the quality of Chinese medicinal materials and decoction pieces in 2017. On this basis, the relevant quality control strategies and suggestions were put forward for the relevant departments of China Food and Drug Administration to formulate and implement regulatory measures, furthermore to improve drug standards, and ensure the safety of medication.


Subject(s)
China , Drugs, Chinese Herbal , Reference Standards , Medicine, Chinese Traditional , Product Surveillance, Postmarketing , Quality Control
16.
Article in Chinese | WPRIM | ID: wpr-737209

ABSTRACT

In this study,we aimed to study the pattern visual evoked potentials (P-VEPs) in two eyes with varying visual acuity in one eye and to provide an objective estimation of visual acuity by comparing P-VEPs in one and two eyes.Thirty subjects were chosen,who had one eye with an acuity of 5.0,4.85,4.6,4.0,or scieropia and obstructed vision and the other eye with an acuity of 5.0,respectively.P-VEPs were detected under the large grating stimuli at 3×4 spatial frequency,moderate grating stimuli (12× 16 spatial frequency) and small grating stimuli (48×64 spatial frequency).Under large grating stimuli,there was no significant difference in P100 peak latency between the groups,nor was there a significant difference between the amplitude of two eyes and the amplitude of one normal-vision eye.Under moderate and small grating stimuli,there was a significant difference in P100 peak latency between the group with both eyes having an acuity of 5.0 and the group with visual acuity below 4.0 in one eye.There was a significant difference in P100 amplitude between the group with visual acuity of 5.0 in both eyes and the group with one normal-vision eye.There was no significant difference in the amplitude of two eyes and the amplitude of one normal-vision eye between any other two groups.In forensic identification,characteristics and variability of P-VEPs in one and two eyes can be used to identify malingering or decline in visual acuity.

17.
Article in Chinese | WPRIM | ID: wpr-735741

ABSTRACT

In this study,we aimed to study the pattern visual evoked potentials (P-VEPs) in two eyes with varying visual acuity in one eye and to provide an objective estimation of visual acuity by comparing P-VEPs in one and two eyes.Thirty subjects were chosen,who had one eye with an acuity of 5.0,4.85,4.6,4.0,or scieropia and obstructed vision and the other eye with an acuity of 5.0,respectively.P-VEPs were detected under the large grating stimuli at 3×4 spatial frequency,moderate grating stimuli (12× 16 spatial frequency) and small grating stimuli (48×64 spatial frequency).Under large grating stimuli,there was no significant difference in P100 peak latency between the groups,nor was there a significant difference between the amplitude of two eyes and the amplitude of one normal-vision eye.Under moderate and small grating stimuli,there was a significant difference in P100 peak latency between the group with both eyes having an acuity of 5.0 and the group with visual acuity below 4.0 in one eye.There was a significant difference in P100 amplitude between the group with visual acuity of 5.0 in both eyes and the group with one normal-vision eye.There was no significant difference in the amplitude of two eyes and the amplitude of one normal-vision eye between any other two groups.In forensic identification,characteristics and variability of P-VEPs in one and two eyes can be used to identify malingering or decline in visual acuity.

18.
Article in Chinese | WPRIM | ID: wpr-698277

ABSTRACT

Objective To investigate the long-term efficacy of PEG-IFN alpha-2a (PEG-IFNα-2a)plus ribavirin (RBV)in treatment of chronic hepatitis C (CHC)patients with IL28B single nucleotide polymorphisms (SNPs)rs12979860 C/C type in different HCV genotypes.Methods A prospective study was conducted on 38 CHC patients from our hospital's Infection Department from March 2011 to September 2015.The patients were treated with PEG-IFNα-2a/RBV for 48 weeks.A 42-month follow-up of patients was performed after withdrawal of treatment.The main paramenters to value the efficacy were liver function,blood lipids,and sustained virological response (SVR).Results In the CHC patients with IL28B SNP rs12979860 C/C type,the rate of SVR in patients with antiviral therapy had no significant difference between groups 1b and 2a (73.33% and 95.65%,respectively, P>0.05).After anti-HCV therapy,liver function indices such as ALT,AST,TBIL,TC,TG and HDL all significantly improved in the two groups (all P<0.05).However,there was no difference in biochemical indices (ALT,GGT,bilirubin,blood lipids)between the two groups (all P>0.05).Conclusion In CHC patients with IL28B SNP rs12979860 C/C type,the long-term efficacy of PEG-IFNα-2a/RBV is good.IFN-based antiviral therapy has a higher SVR rate,and liver function and lipid metabolism can be significantly improved.

19.
Article in Chinese | WPRIM | ID: wpr-690675

ABSTRACT

The study aims at developing a convenient and specific method for the identification of Fel Serpentis DNA. The methods of Fel Serpentis genomic DNA purification were tested and optimized, four pairs of specific primers for the amplification of COⅠ, Cyt b and 16S were designed. Then the best pair of primers were selected according to the specificity and efficiency. The DNA fragment about 400 bp was amplified from 20 kinds of Fel Serpentis, whereas no DNA fragment was amplified from other animal samples under the same condition. This method is specific,accurate and reproducible, which provides a useful tool for the quality control of Fel Serpentis.

20.
Article in Chinese | WPRIM | ID: wpr-512451

ABSTRACT

Objective To explore the clinical value of guide-wire shaping in subclavian vein catheter-ization.Methods Totally 400 patients requiring right subclavian vein catheterization were equally divided into two groups according to the clinic date: intervention group ( with guide-wire shaping , n =200 ) and control group (without guide-wire shaping, n=200).The catheterization was carried out by the same doctor .The rates of ectopic wire were compared between the two groups .Results The overall success rate of catheteriza-tion was 98.25%(393/400) [98.5% (197/200) in intervention group and 98.0% (196/200) in control group, P=0.500].The incidence of catheter displacement was 1.02%(2/197) in intervention group, which was significantly lower than that [7.14% (14/196)] in control group (P=0.002).Conclusion As a sim-ple procedure , guide-wire shaping can effectively prevent catheter displacement during catheterization .

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