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    find Author "ZHANG Yan" 62 results
    • Research progress of USPIO enhanced MRI in normal-sized lymph node metastasis of colorectal cancer

      ObjectiveTo summarize the research progress of ultrasmall superparamagnetic iron oxide (USPIO) enhanced magnetic resonance imaging (MRI) in normal-sized lymph node metastasis of colorectal cancer.MethodThe relevant literatures published recently at domestic and abroad about USPIO enhanced MRI in normal-sized lymph node metastasis of colorectal cancer were collected and reviewed.ResultsUSPIO, a kind of lymph node targeted magnetic resonance contrast agent, could be used to evaluate lymph node metastasis of malignant tumors. USPIO enhanced MRI could detect normal-sized lymph node metastasis in colorectal cancer effectively compared with normal MRI. It provided a higher diagnostic performance than normal enhanced MRI. In addition, USPIO enhanced MRI could also distinguish inflammatory and metastatic lymph nodes better that were difficult to be distinguished by normal enhanced MRI.ConclusionUSPIO enhanced MRI shows a certain potential for clinical application in detecting normal-sized lymph node metastasis of colorectal cancer, but it has not been widely used in China.

      Release date:2020-10-21 03:05 Export PDF Favorites Scan
    • The Clinical Observation on Cardiovascular Protective Effect of Glimepiride on Patients with Type 2 Diabetes Mellitus

      摘要:目的: 觀察格列美脲對2型糖尿病患者心血管的保護作用并探討其可能的機制。 方法 :112例T2DM患者隨機分為格列美脲組(格列美脲+二甲雙胍)和對照組(格列本脲+二甲雙胍),觀察治療前后兩者空腹及餐后兩小時血糖(FBG,2hPBG)、糖化血紅蛋白(HbA1c)、空腹胰島素(FINS)、HOMA模型胰島素抵抗指數(HOMAIR)、甘油三脂(TG)、總膽固醇(TC)、高密度脂蛋白膽固醇(HDLC)、低密度脂蛋白膽固醇(LDLC)、同型半胱氨酸(HCY)、血漿脂聯素的變化。 結果 :兩組患者的TC、LDLC、TG、FBG、2hPBG都較治療前降低,連續服用6個月以上格列美脲的T2DM患者其血漿HCY、HOMAIR、血糖水平明顯下降,血漿脂聯素水平明顯升高,與對照組相比差異有統計學意義(〖WTBX〗P lt;005)。 結論 :格列美脲能降低多項心血管危險因子水平,對血脂、HCY和動脈粥樣硬化都有良性調節作用,其作用基礎可能與改善胰島素抵抗,增加血漿脂聯素相關。Abstract: Objective: To observe the protective effects and to explore mechanisms of glimepiride on cardiovascular system of Type 2 Diabetes Mellitus. Methods : 112 patients with type 2 diabetes mellitus were randomly divided into treatment group (glimepiride combined with metformin) and control group (glibenclamide combined with metformin). The fasting blood glucose (FBG), 2hPBG, hemoglobin A1c (HbA1c), FINS, HOMAIR, blood lipid (TC, TG, LDLC and HDLC), HCY (homocysteine) and adiponectin were detected before and after treatment. Results : In all cases, the level of TC、LDLC、TG、FBG、2hPBG were decreased after treated with glimepiride or glibenclamide combined with metformin for 6 monthes. Moreover, the level of HCY, HOMAIR and blood glucose were decreased and the level of adiponectin was increased significantly than that of in control group (Plt;005). Conclusion : Glimepiride showed the effective on decreasing the risk factor of cardiovascular system disease with regulation of blood lipid, HCY, and improve the atherosclerosis. The effective of glimepiride on cardiovascular system was relation to improved the insulin resistance and increase the adiponectin.

      Release date:2016-09-08 10:12 Export PDF Favorites Scan
    • Evaluation of the Quality of Reports on Acupuncture for Migraine Prophylaxis

      Objectives We aimed to assess the methodological qual ity of RCT on acupuncture for migraine prophylaxis. Methods With the searching terms including acupuncture, migraine, prophylaxis and prevent, etc, the database of the Cochrane Library (Issue 4, 2007), MEDLINE (1966-2007), EMBase (1966-2007), CBM (1978-2007) and CMCC (1994-2007) were searched from their date of start publ ication. Chinese medical journals and relevant academic conference proceedings were hand searched as well. Several items in included trials were assessed, including methodology, diagnostic criteria, inclusion/exclusion criteria, acupuncture/control interventions, outcome measures and follow-up, etc. Result Among the 12 included trials, 9 trials overseas were high-qual ity and 3 in China were low-quality. Frequency or days of migraine attacks and SF-36/SF-12 were often evaluated as outcome measures in western countries, while headache index was used in China. Among the 12 trials, 9 reported the follow-up outcomes and 8 mentioned adverse events. Conclusion There was no high qual ity trial on acupuncture for migraine prophylaxis in China. The outcome measures in trials published in China by now can not evaluate the outcomes of acupuncture for migraine prophylaxis accurately. To study designs, advantages of trials oversea can be used for reference. To Chinese cl inical physicians, prophylactic therapy and abortive therapy of migraine should be distinguished in order to design high-qual ity study on acupuncture for migraine prophylaxis.

      Release date:2016-09-07 02:12 Export PDF Favorites Scan
    • Peritoneal Ginkgo-dipyidamolum on Renal Function and Antioxidative Effect in Diabetic Rats

      目的:研究銀杏達莫對糖尿病大鼠腎功能的影響,并從抗氧化應激反應的角度探討其可能的作用機制。方法:50只Wistar大鼠隨機分為正常組(10只),糖尿病模型組(20只)及糖尿病模型加銀杏達莫組(20只)。采用單次腹腔注射鏈脲佐菌素(55 mg/kg)誘導糖尿病腎病(DN)大鼠模型,腹腔注射銀杏達莫水溶液。生化法測定血糖,血、尿肌酐及尿白蛋白;尾靜脈取血ELISA法檢測血清血管內皮先長因子(VEGF)水平;腎臟勻漿后測腎臟丙二醛(MDA)、一氧化氮(NO)的含量。結果:糖尿病模型組和銀杏達莫組生化指標均高于正常組(Plt;0.05),銀杏達莫組MDA、NO及VEGF的表達減少與模型組比較差異有顯著性(Plt;0.05)。結論:銀杏達莫具有減輕糖尿病大鼠蛋白尿,提高尿肌酐排泄,減輕腎臟損害的作用,其機制可能與提高腎臟抗氧化系統功能有關。

      Release date:2016-08-26 03:57 Export PDF Favorites Scan
    • Mid-term Outcomes after Correction of Type Ⅰ and Type Ⅱ Persistent Truncus Arteriosus

      Abstract: Objective To analyze the mid-term outcomes after correction of type Ⅰ and type Ⅱ persistent truncus arteriosus in all patients operated in our institution over the past 5 years. Methods Between May 2006 and October 2010, 17 patients, mean age 4.7( 0.7-19.0)years, underwent repair of truncus arteriosus( type Ⅰ in 13 and type Ⅱ in 4) in Fu Wai Cardiovascular Hospital. Some other concomitant cardiovascular malformations included truncal valve regurgitation, partial anomalous pulmonary venous connection, mitral regurgitation and atrial septal defect. Their average pulmonary vascular resistance was (4.4±2.2) Wood units detected by cardiac catheterization before operation. Repair with reconstruction of the right ventricular to pulmonary artery continuity was performed using a valved conduit in all 17 patients (aortic homografts in 3, pulmonary homografts in 2, and bovine jugular vein in 12 patients). Survivors were followed up for assessment of residual heart lesions. Results The early mortality was 5.8% (1/17). The mean cardiopulmonary bypass time was (165±52) min, mean aortic cross-clamping time was (114±29) min, and mean postoperative ventilation time was (106±148) h. Two patients had pleural effusion after surgery, 2 patients underwent tracheostomy, and other patients recovered uneventfully. The surviving 16 patients were followed up for 0.6-5.0 years. All patients were alive with their original conduit during follow-up. No patient required re-operation for conduit dysfunction after correction. Conclusion Truncus arteriosus remains a challenging congenital heart disease. For patients with type Ⅰ and type Ⅱ persistent truncus arteriosus who have missed their best age for correction, cardiac catheterization should be routinely examined, and the operation should be performed if the pulmonary vascular resistance is under 8 Wood units before operation. Although the short- and mid-term results of surgery are good, more observations are needed to assess its long-term effect.

      Release date:2016-08-30 05:48 Export PDF Favorites Scan
    • Application of PST technique in preventing anastomotic leakage after rectal cancer surgery

      ObjectiveTo investigate the application value and research progress of PST technique in preventing anastomotic leakage after rectal cancer surgery. MethodThe related literatures at home and abroad in recent years about the application of left colon artery preservation, suture of anastomotic stoma and closure of pelvic floor peritoneum, and indwelling anal canal (PST technology for short) in rectal cancer surgery were searched and summarized. ResultsPST technology could prevent anastomotic leakage after rectal cancer surgery from many angles, reduce infection and inflammation, promote postoperative rehabilitation and improve the quality of life of patients, and it is simple and easy to do. The great advantages of PST technology are gradually verified and recognized in clinic. ConclusionPST is a safe and feasible method to prevent anastomotic leakage and relieve the symptoms of anastomotic leakage.

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    • Early Clinical Result of Total Cavopulmonary Connection

      Abstract: Objective To summarize early clinical result of total cavopulmonary connection, and analyze the risk factors contributing to prolonged postoperative recovery. Methods Between February 2009 and August 2010, 58 patients with functional univentricular complex congenital heart disease received total cavopulmonary connection in Beijing Fu Wai Hospital. All of them were diagnosed by echocardiogram and angiography including 26 patients with single ventricle, 10 patients with tricuspid atresia, 4 patients with pulmonary artery atresia, 5 patients with double outlet rightventricle, 1 patient with transposition of great arteries, and 12 patients with corrected transposition of the great arteries.Fifty seven patients underwent extracardiac conduit total cavopulmonary connection, and only one patient underwent total cavopulmonary connection with an intracardiac lateral tunnel. According to their postoperative pleural drainage volume and duration, these 58 patients were divided into a large pleural drainage volume group (17 patients with 10 males and 7 females, mean age of 8.61±6.73 years)that included patients with large volume and long duration of pleural drainage, and a little pleural drainage volume group (41 patients with 15 males and 26 females, mean age of 7.21±4.24 years) . A univariable analysis was conducted to compare the risk factors that effected recovery result between the two groups. Results There was no death in hospital period. The average length of hospital stay was 12.30±9.80 d . Average drainage time (18.00±5.50 d versus 5.00±2.20 d , t= -1.967, P < 0.05), drainage volume (12.30±2.60 ml/(kg·d) versus 2.80±1.70 ml/(kg·d), t=-3.221, P < 0.05), and hospital stay (20.10±7.20 d versus 7.20±1.10 d, t=-2.003, P < 0.05) of the large pleural drainage volume group were significantly larger or longer than those of the little pleural drainage volume group. Univariate analysis showed that preoperative pulmonary pressure measured by catheter in the large pleural drainage volume group was significantly higher than that in the little pleural drainage volume group (17.42±5.34 mm Hg versus 13.91±5.22 mm Hg,t=-2.073,P < 0.05). Conclusions The mortality and major morbidities after total cavopulmonary connection are low in the current era. Preoperative high pulmonary pressure is a risk factor for large amount of pleural drainage and prolonged recovery.

      Release date:2016-08-30 05:48 Export PDF Favorites Scan
    • Effectiveness and risk factor analysis of venous thromboembolism prevention in the management of day surgery wards

      Objective To observe the effectiveness of prevention and management of venous thromboembolism (VTE) in the day surgery wards, analyze the influencing factors of VTE occurrence in postoperative patients, in order to reduce the occurrence of VTE adverse events, improve the utilization of medical resources, and enhance the quality of day care. Methods The patient data of the Daytime Diagnosis and Treatment Center of Deyang People’s Hospital between January 2020 and December 2023 were retrospectively selected. According to the implementation time of VTE prevention and control in the day surgery wards, patients between 2022 and 2023 were selected as the observation group, and patients between 2020 and 2021 were selected as the control group. The incidence and the influencing factors of postoperative of VTE were compared between the two groups. Results A total of 2 300 patients were included, with 1 150 cases in each group. The comparison of in-hospital [12 cases (1.0%) vs. 3 cases (0.3%)] and post discharge [7 cases (0.6%) vs. 1 case (0.1%)] VTE incidence rates between the control group and the observation group showed statistically significant differences (P<0.05). Among the 9 specialties in the Daytime Diagnosis and Treatment Center, the incidence of VTE in thoracic surgery (1.58%), vascular surgery (1.51%), and hepatobiliary surgery (1.29%) ranked among the top 3. The results of multiple logistic regression analysis showed that fourth grade surgery, lower limb surgery, and large intraoperative bleeding (>100 mL) were the influencing factors for postoperative VTE (P<0.05). Conclusions There are many reasons for VTE occurrence, and it is necessary to prevent and treat VTE in the day surgery ward. More attention should be paid to the patient’s surgical grading, intraoperative bleeding volume, and surgical site.

      Release date:2025-02-25 09:39 Export PDF Favorites Scan
    • Progress in diagnosis and treatment of fibular fracture in ankle fracture

      Objective To summarize the diagnosis and treatment of fibular fracture in ankle fracture. MethodsRelevant literature at home and abroad in recent years was widely consulted, and various types of fractures were discussed and summarized according to Danis-Weber classification. ResultsConservative treatment is not an ideal treatment for type A avulsion fracture. The operation method should be determined according to the position and size of bone mass. For simple type B fracture, both conservative treatment and surgical treatment can achieve good results. When the position of type C fracture is high and does not affect the stability of ankle joint, it can be treated conservatively, while when the position is low and affects the stability of ankle joint, it needs surgical treatment. ConclusionFirst of all, whether the fibular fracture in the ankle fracture is stable or not should be determined. Whether it is treated surgically or not, the purpose is to restore the tibiofibular syndesmosis and restore the motor function of the ankle.

      Release date:2022-01-27 11:02 Export PDF Favorites Scan
    • Anesthesia for 200 Patients Undergoing OffPump Coronary Artery Bypass Surgery

      摘要:目的: 探討非體外循環冠狀動脈旁路移植術(offpump coronary artery bypass grafting,OPCABG)患者的圍術期管理。 方法 : 回顧分析2005 年7 月至2008 年6 月的200 例擇期非體外循環下冠狀動脈旁路移植術患者200例,誘導用咪唑安定005~01 mg/kg,依托咪酯03 mg/kg,芬太尼5~15 μg/kg,羅庫溴銨05~10 mg/kg,麻醉維持采用持續泵注異丙酚1~4 mg/kg·h,,間斷輔以05%~20%異氟烷吸入,術中隨手術操作時出現的血流動力學變化,用血管活性藥物調整。 結果 : 麻醉效果滿意,術中血壓心率基本滿意。本組患者蘇醒時間,拔管時間和ICU停留時間為(178±42) min、(105±40)h、(18±63)h。術畢180例患者在12 h內拔管。180例預后良好,無麻醉并發癥。 結論 :非體外循環下冠狀動脈旁路移植術麻醉管理的關鍵是合理的應用麻醉藥和血管活性藥來維持血流動力學平穩。Abstract: Objective: To summarize the technique and evaluate the effect of anesthesia for offpump coronary artery bypass surgery (OPCAB). Methods :From July of 2005 through June of 2008,two hundred consecutive patients undergoing OPCAB were retrospectively studied. Anesthesia was induced with midazolam 00501mg/kg, or etomidate 03mg/kg and fentanyl 515μg/kg. Anesthesia was maintained with isoflurane 05%20% and oxygen, combined with propofol 14mg/(kg·h). Intraoperative hypotension resulting from either surgical procedure or anesthetics should be dealt with inotropes immediately. Results :Intraoperative hemodynamics deviation was tolerated with the support of inotropics. The mean of patients of consciousness recovery time, tracheal extubation time and stay in ICU time were 178±42 min,105±40 hours and 18±63 hours. The patients were discharged in 80±12 days. Racheal intubation were remained 12 hours in 180 patients after operation, 180 patients had good recovery without any anesthesia complications. Conclusion : Rational use of anesthetics and inotropics to stabilize hemodynamics during operation plays a key role in successful OPCAB.

      Release date:2016-09-08 10:12 Export PDF Favorites Scan
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