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find Author "LI Yang" 51 results
  • Meet the Information Age with Evidence-Based Medicine

    Release date:2016-09-07 02:28 Export PDF Favorites Scan
  • Acupuncture for Tension-type Headache: A Systematic Review

    Objective To assess the effectiveness of acupuncture for tension-type headache. Methods A systematic review of the relevant randomized controlled trials (RCTs) of acupuncture for tension-type headache was performed using the methods of The Cochrane Collaboration. Trials were collected from The Cochrane Library, Issue 4, 2003, MEDLINE (1966 to March 2004), CBM (1978 to August 2003), VIP (1989 to April 2003) and handsearched all related articles published in Chinese in 2003. The quality of literature was reviewed, and data were extracted by two reviewers independently. Meta-analysis was conducted using RevMan 4.2 software. Results Thirteen RCTs involving 571 patients were included, of the thirteen RCTs, six were of high methodological quality according to Jadad scale (the Jadad score≥3), and “sham acupuncture” was used as controlled intervention in eight trials. Meta-analysis indicated that no statistical difference was detected between acupuncture and sham acupuncture groups on effectiveness with RR 1.55, 95%CI 0.97 to 2.47 and P=0.07 at the end of treatment. No statistical difference was detected between acupuncture and sham acupuncture groups on visual analogue scale at the end of treatment with WMD -0.55, 95%CI -1.20 to 0.09 and P=0.09; at the end of follow-up of less than 2 months with WMD -0.22, 95%CI -0.87 to 0.42 and P= 0.50 and at the end of follow-up of more than 2 months with WMD -0.65, 95% CI -1.41 to 0.11 and P=0.09. Conclusions Comparing acupuncture with sham acupuncture and other treatments, current evidence can not evaluate whether acupuncture is significantly effective for tension-type headache, more RCTs of high methodological quality are required.

    Release date:2016-09-07 02:25 Export PDF Favorites Scan
  • Association and Research Advancements of Clinical Application in Thomsen-Friedenreich Related Antigens and MUC1 Antigen

    Objective Mucin 1 (MUC1)and Thomsen-Friedenreich related antigens (TFRA)gene play an important role in the occurrence and development of tumor,so we will discuss its research advancements and clinical applications below. Methods Foreign and native related literatures published in recent 10 years were retrieved,and a further exploration on the expression relationship and clinical research progression of MUC1 and TFRA were reviewed. Results MUC1 and TFRA expressed in a high degree of specificity in malignant tumors,and their expressions interacted with each other. Many MUC1 related vaccines had been introduced to clinical in recent years,and some drugs based on TFRA had been put into clinical experiment as gene therapy methods too. Conclusions MUC1 and TFRA may be used as new target antigens of specific immunotherapy for malignant tumor. That they express in high or low level is closely related to tumor biological behavior and prognosis, moreover, they are important to the diagnosis and treatment of cancer.

    Release date:2016-09-08 10:36 Export PDF Favorites Scan
  • Infectious complications of common interventional procedures

    Interventional radiology (IR) has developed rapidly since its introduction into our country. More and more patients choose this minimally invasive procedure for treatment, but the incidence of infectious complications and potential mortality following IR procedures should not be underestimated. As the number and breadth of IR procedures grow, it becomes increasingly evident that interventional radiologists and infection control practitioners must possess a thorough understanding of these potential infectious complications and put more emphasis on the quality of care, so as to control the infections and expenses, and maximize the patient safety. This article reviews infectious complications associated with percutaneous ablation of liver tumors, transarterial embolization of liver tumors, percutaneous transhepatic cholangial drainage, and intravascular stents or grafts. Emphasis is placed on incidence, risk factors, and prevention. With the use of these strategies, IR procedures can be performed with reduced risk of infectious complications.

    Release date:2019-03-22 04:19 Export PDF Favorites Scan
  • Treatment strategy for the obstructive or perforated rectal cancer

    Colorectal cancer is one of the common malignant tumor in the world, and about 57.6% of colorectal cancer surgical cases in our country are rectal cancer patients, which occupies a major proportion. Some patients with rectal cancer may already have emergencies such as intestinal obstruction or limited perforation at the time of consultation, which require immediate relevant treatment measures. Currently, there are multiple surgical and endoscopic treatment strategies available for obstructive and perforated rectal cancer. Surgeons need to perform an accurate and comprehensive assessment of the disease, define the goals of the current treatment, and formulate an appropriate treatment plan based on the patient’s clinical and oncological status in order to optimize the patient’s oncological outcome while minimizing the risk of complications associated with emergency colorectal surgery.

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  • CURATIVE EFFECT ANALYSIS OF UNSUPPORTED REDUCTION ASCENDING AORTOPLASTY FOR DILATATION OF ASCENDING AORTA

    Objective To evaluate the effectiveness of unsupported reduction ascending aortoplasty for dilatation of the ascending aorta. Methods Between September 2005 and May 2011, 53 patients with aortic valve disease and dilatation of the ascending aorta underwent aortic valve replacement with unsupported reduction ascending aortoplasty. There were 41males and 12 females, aged 22-75 years (mean, 52 years). The disease duration was 1 month to 14 years. The color Doppler echocardiography showed that the diameter of the ascending aorta before surgery was (45.9 ± 3.3) mm; bicuspid aortic valve and tri-aortic valve were observed in 13 and 40 cases respectively. The heart functions were graded as II level in 19 cases, III level in 33 cases, and IV level in 1 case according to the standard of New York Heart Disease Academy (NYHA). Results After operation, mediastinum errhysis occurred in 1 case, pneumonia in 3 cases, and III degree atrioventricular block in 1 case. There was no related complication of the aortoplasty. All the patients were followed up 3-68 months (mean, 15 months), and had no obvious chest tightness and palpitation. At last follow-up, the NYHA heart functions were graded as I level in 22 cases, II level in 31 cases; the diameter of the ascending aorta was (35.2 ± 4.0) mm, showing significant difference when compared with the preoperative one (P=0.000), but no significant difference when compared with the one at discharge (34.0 ± 2.5) mm (P=0.245). There was significant difference in the diameter of the ascending aorta between last follow-up and preoperation, at discharge in the patients who were followed up more than 60 months (P lt; 0.05); significant difference was found between last followup and preoperation in patients with bicuspid aortic valve (P lt; 0.05), but no significant difference between last follow-up and preoperation (P gt; 0.05) in patients whose diameter of the ascending aorta was more than 50 mm before operation. Conclusion Unsupported reduction ascending aortoplasty has good short- and mid-term results in treating aortic valve disease with mild to moderate dilatation (diameter range, 40-50 mm) of the ascending aorta. Inclusion criteria of the aortoplasty should be strict. Long-term results need further follow-up.

    Release date:2016-08-31 04:23 Export PDF Favorites Scan
  • EFFECT OF RIVAROXABAN ON RISK OF BLEEDING AFTER TOTAL KNEE ARTHROPLASTY

    Objective To investigate the effect of rivaroxaban on the risk of bleeding after total knee arthroplasty (TKA). Methods A total of 119 cases undergoing primary TKA because of knee osteoarthritis between June 2009 and May 2011, were randomly divided into the rivaroxaban group (59 cases) and the control group (60 cases). There was no significant difference in gender, age, height, weight, side, disease duration, and grade of osteoarthritis between 2 groups (P gt; 0.05). Thepreoperative preparation and operative procedure of 2 groups were concordant. At 1-14 days after TKA, rivaroxaban 10 mg/d were taken orally in the rivaroxaban group, and placebo were given in the control group. The blood routine examination was performed before operation and at 2 days postoperatively; the total blood loss and hemoglobin (HGB) decrease were calculated according to the formula; the blood loss, postoperative wound drainage, and wound exudate after extubation were recorded to calculate the dominant amount of blood loss; and the bleeding events were recorded within 35 days postoperatively. Results The total blood loss and HGB decrease were (1 198.34 ± 222.06) mL and (33.29 ± 4.99) g/L in the rivaroxaban group and were (1 124.43 ± 261.01) mL and (31.57 ± 6.17) g/L in the control group, showing no significant difference (P gt; 0.05); the postoperative dominant blood loss in the rivaroxaban group [(456.22 ± 133.12) mL] was significantly higher than that in the control group [(354.53 ± 96.71) mL] (t=4.773, P=0.000). The bleeding events occurred in 3 cases (5.1%) of the rivaroxaban group and in 1 case (1.7%) of the control group, showing no significant difference (χ2=1.070, P=0.301). Conclusion Rivaroxaban has some effects on the risk of bleeding after TKA. In general, rivaroxaban is safe.

    Release date:2016-08-31 05:42 Export PDF Favorites Scan
  • SURGICAL TECHNIQUES OF OPEN REDUCTION AND INTERNAL FIXATION FOR ANKLE FRACTURE

    To evaluate the surgical techniques of open reduction and internal fixation performed for ankle fracture retrospectively and the corresponding cl inical outcomes. Methods From March 2001 to January 2006, 242 patients with ankle fracture were treated. A total of 85 patients with complete cl inical data were analyzed. According to the Lauge-Hansen classification system, the fractures were classified into pronation-external rotation(grade II) in 12 cases and grade IV in 9 cases, supination-external rotation(grade II) in 34 cases and grade IV in 16 cases, supination-adduction (grade II) in 8 cases, and pronation-abduction in 6 cases.The reduction and internal fixation started with lateral malleolus, then medialmalleolus and posterior malleolus, and distal tibiofibular syndesmosis in sequence. Among 10 cases, 5 of the distal tibiofibular syndesmosis were fixed with one screw through 3 layers of bone cortexes. All cases were auxil iarily fixed with plaster pad for 4 to 6 weeks after operation. Results The follow-up period varied from 6 to 36 months, with an average of 10 months. There were no local compl ications such as malunion or nonunion of the fractures and deformity of the ankle. The inserted screw to distal tibiofibular syndesmosis was not broken. The patients were evaluated with Baird-Jackson scoring system.The numbers of the patients who had excellent, good, fair and poor results were 53, 23, 6, 3, respectively.The excellent and good rate was 89.4 %. Conclusion Operative treatment may provide satisfactory cl innical outcomes for ankle fracture.Proper internal fixation and correct fracture pattern estimation are of importance to achieve and gain better long-term results.

    Release date:2016-09-01 09:12 Export PDF Favorites Scan
  • Progress of midfacial fat compartments and related clinical applications

    Objective To review the research progress of midfacial fat compartments, and to thoroughly understand its current state of the anatomy and the aging morphologic characters of midfacial fat compartments, as well as the current status of clinical applications. Methods The recent literature concerning the midfacial fat compartments and related clinical applications were extensively reviewed and analyzed. Results Midfacial fat layer has been considered as a fusion and a continuous layer, experiencing a global atrophy when aging. As more anatomical researches have done, recent studies have shown that midfacial fat layer is broadly divided into superficial and deep layers, which are both divided into different fat compartments by fascia, ligaments, or muscles. Midfacial fat compartments tend to atrophy with age, specifically in the deep fat compartments while hypertrophy in the superficial fat compartments. Clinical applications show that fat volumetric restoration with deep medial cheek fat and Ristow’s space can restore the appearance of midface effectively. Conclusion In recent years, the researches of midfacial fat compartments have achieved obvious progress, which will provide new ideas and basis for fat volumetric restoration. Corresponding treatments are selected based on different sites and different layers with different aging changes, reshaping a more youthful midface.

    Release date:2018-02-07 03:21 Export PDF Favorites Scan
  • Correlation between clinicopathologic features and lymph node metastasis in patient with early gastric cancer

    Objective To investigate pattern of lymph node metastasis (LNM) in patient with early gastric cancer (EGC) and it’s relation to clinicopathologic features so as to providing evidence for proper clinical management for EGC. Method The clinical and pathologic data of 101 EGC patients who were diagnosed and treated in the West China Hospital of Sichuan University from January 2011 to December 2012 were retrospectively analyzed. Results The LNM was found in the 28 patients, the rate of the LNM was 27.7% (28/101). In the univariate analysis, the LNM was associated with the macroscopic type (P=0.013), depth of invasion (P<0.001), differentiation type (P=0.044), and lymphovascular invasion (P=0.020); In the multivariate logistic regression analysis, the factors including of the macroscopic type (RR=4.742, P=0.009), differentiation type (RR=6.369, P=0.011), and depth of invasion (RR=15.218, P<0.001) were the independent risk factors for the LNM. Twenty-eight patients with LNM had only 1 positive lymph node, 4 patients had more than 7 positive lymph nodes. The No.6 lymph node was the most frequently involved station (35.7%, 10/28). The LNMs in the 69.7% (19/28) patients were restricted in the extent of the D1 lymphadenectomy, 3 (10.7%) patients without the perigastric lymph node involvement had the No.8a or No.9 LNM. Conclusion LNM in patient with EGC is correlated with clinicopathologic features such as macroscopic type, depth of invasion, differentiation type, and lymphovascular, further investigation is warranted to clarify risk factors of LNM in patient with EGC.

    Release date:2018-07-18 01:46 Export PDF Favorites Scan
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