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find Author "XU Lei" 16 results
  • Application of Myocardial Contrast Echocardiography in Evaluation of Viable Myocardium

    Progress in the treatment of acute myocardial infarction (AMI), chronic coronary artery disease and their immediate complications has led to an increasing number of surviving patients with residual left ventricular dysfunction. It has been shown that viable myocardium in post-AMI patients and chronic heart failure patients plays an important role in predicting their prognosis and making clinical decisions. Viable myocardium refers to myocardium with reversible contractile dysfunction that occurs in coronary ischemia or after ischemia-reperfusion, but still has contractile reserve. Myocardial microvascular integrity is in correspondence with myocardial viability. Myocardial contrast echocardiography can evaluate the microvascular integrity of myocardial dysfunctional areas in patients with AMI or chronic coronary artery disease, detect viable myocardium, predict the potential for functional recovery in dysfunctional areas following reperfusion, and provide clinicians with valuable information for individualized treatment.

    Release date:2016-08-30 05:50 Export PDF Favorites Scan
  • Quality Assessment of Randomized Controlled Trials on Treatment of Sjogren’s Syndrome with Traditional Chinese Medicine

    Objective To investigate the current situation of randomized controlled trials (RCTs) on the treatment of Sjogren’s syndrome with Traditional Chinese Medicine (TCM), and to assess whether there is adequate evidence for clinical practice. Methods Such databases as CNKI, VIP, CBM and PubMed were searched from their establishment date to June 2010 to collect the RCTs on the treatment of Sjogren’s syndrome with TCM according to the predefined inclusion criteria. And the quality was assessed by using the Jadad scale, the revised CONSORT statement and other self-defined indexes.Results Among 19 included RCTs, 1 literature scored four points, 4 scored two points, 13 scored one point, and 1 scored zero point according to Jadad scale; no RCT performed the allocation concealment. According to the CONSORT criteria, 19 RCTs accounting for 100% reported the diagnostic criteria, implement of interventions and result, 11 RCTs applied the 2002 international diagnosis and classification criteria of Sjogren’s syndrome, 17 RCTs carried out positive control including one based on the standard treatment, and two RCTs applied only blank control without placebo control. All RCTs took the comprehensive efficacy assessment as the outcome index, but only 6 RCTs (31.6%) assessed both clinical efficacy and TCM syndrome efficacy. Among 6 RCTs (31.6%) describing the random sequence, no RCT reported the detailed methods. Except 1 RCT (5.3%) carried out the double blinding, all the others were non-blind trials. And only 1 RCT adopted analog. Conclusion Currently, the methodology and reporting quality of studies on the treatment of Sjogren’s syndrome with TCM are not good enough to provide reliable evidence for clinical practice.

    Release date:2016-09-07 11:06 Export PDF Favorites Scan
  • Current Diagnosis and Therapy Advancement of Solid Pseudopapillary Tumor of The Pancreas

    Objective To summarize the current diagnostic and therapeutic advancement of solid pseudopapillary tumor of the pancreas. Methods Relevant literatures about the diagnosis and treatment of solid pseudopapillary tumor of the pancreas, which were published recently domestic and abroad were collected and reviewed. Results Solid pseudopapillary tumor of the pancreas is now considered to be a low-grade malignancy with characteristic clinical, imaging and pathological features. Resection is considered to be the optimal choice with favourable prognosis. Conclusion An awareness of the features may guide us to a correct diagnosis and treatment of this rare neoplasm, but the deep understanding of the disease needs the accumulation of more cases and fundamental research.

    Release date:2016-09-08 10:58 Export PDF Favorites Scan
  • Analysis of the factors influencing the same-day discharge of surgical patients based on the day pattern

    Objective To analyze the influencing factors of single-center day surgery patients who are discharged from the hospital on the same-day, in order to provide reference and basis for the clinical practice of follow-up day surgery. Methods The electronic medical records of patients who underwent day surgery in the Day Surgery Center of the First Affiliated Hospital of the Air Force Military Medical University between February and October 2021 were analyzed retrospectively. The patients were divided into the same-day discharge group and non-same-day discharge group. The baseline data and perioperative indicators of the patients were analyzed. Results A total of 857 patients were included, including 264 patients (30.81%) in the same-day discharge group and 593 patients (69.19%) in the non-same-day discharge group. Univariate analysis showed that there were significant differences between the two groups in gender, age, body mass index, whether the first one, disease classification, anesthesia method, and intraoperative blood loss (P<0.05). Logistic regression analysis showed that gender, whether the first one, disease classification, surgical grade, anesthesia method, and intraoperative blood loss were independent factors affecting the delayed discharge of patients undergoing daytime surgery (P<0.05). Conclusions There are many factors that affect day surgery patients’ discharge. It is suggested that more rigorously screen patients for day surgery, improve medical technology, strengthen out-of-hospital continued care, and optimize management procedures, so as to shorten the time of patients in hospital and provide more information for patients, and provide more efficient and convenient medical services for patients.

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  • Factors influencing pulmonary complications after liver transplantation and the construction of a predictive model

    Objective To investigate the factors influencing the occurrence of postoperative pulmonary complications (PPCs) in liver transplant recipients and to construct Nomogram model to identify high-risk patients. Methods The clinical data of 189 recipients who underwent liver transplantation at the General Hospital of Eastern Theater Command from November 1, 2019 to November 1, 2022 were retrospective collected, and divided into PPCs group (n=61) and non-PPCs group (n=128) based on the occurrence of PPCs. Univariate and multivariate logistic regression analyses were used to determine the risk factors for PPCs, and the predictive effect of the Nomogram model was evaluated by receiver operator characteristic curve (ROC) and calibration curve. Results Sixty-one of 189 liver transplant patients developed PPCs, with an incidence of 32.28%. Univariate analysis results showed that PPCs were significantly associated with age, smoking, Child-Pugh score, combined chronic obstructive pulmonary disease (COPD), combined diabetes mellitus, prognostic nutritional index (PNI), time to surgery, amount of bleeding during surgery, and whether or not to diuretic intraoperatively (P<0.05). Multivariate logistic regression analysis showed that age [OR=1.092, 95%CI (1.034, 1.153), P=0.002], Child-Pugh score [OR=1.575, 95%CI (1.215, 2.041), P=0.001], combined COPD [OR=4.578, 95%CI (1.832, 11.442), P=0.001], combined diabetes mellitus [OR=2.548, 95%CI (1.024, 6.342), P=0.044], preoperative platelet count (PLT) [OR=1.076, 95%CI (1.017, 1.138), P=0.011], and operative time [OR=1.061, 95%CI (1.012, 1.113), P=0.014] were independent risk factors for PPCs. The prediction model for PPCs which constructed by using the above six independent risk factors in Nomogram had an area under the ROC curve of 0.806. Hosmer and Lemeshow goodness of fit test (P=0.129), calibration curve, and decision curve analysis showed good agreement with Nomogram model. Conclusion The Nomogram model constructed based on age, Child-Pugh score, combined COPD, combined diabetes mellitus, preoperative PLT, and time of surgery can better identify patients at high risk of developing PPCs after liver transplantation.

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  • Influential Factors for Graft Patency after Coronary Artery Bypass Grafting

    Abstract: Objective To evaluate graft patency at one year after coronary artery bypass grafting (CABG) and analyze the risk factors of graft occlusion. Methods We prospectively included 71 consecutive patients with coronary heart disease who underwent CABG in First Affiliated Hospital of Harbin Medical University from June to December 2010. There were 37 males and 34 females with their average age of 59.8±7.7 years. All the patients underwent CABG performed by the same surgeon, and received standard drug therapy after surgery. At 1 year after CABG, 256-slice multislice computed tomography (MSCT) angiography was performed to evaluate graft patency. All the patients were divided into two groups according to their graft patency during follow-up, including 16 patients in the occluded graft group and 55 patients in patent graft group. Preoperative, intra-operative and postoperative variables were collected. Univiariate analysis and logistic regress analysis were performed to analyze risk factors of graft occlusion. Results The graft patency was 91.0% (172/189) at 1 year after CABG. Univiariate analysis showed that pre-operative cholesterol (t=-2.389,P=0.017), diffused coronary artery disease (χ2=4.449,P=0.042), diameter of target vessels (t=5.064,P=0.000), non-adherence to prescribed antiplatelet medications (χ2=10.175,P=0.008) were potential risk factors of graft occlusion after CABG. Logistic regress analysis showed that diameter of target vessels [RR=0.014,95% CI (0.001,0.229),P=0.003] and non-adherence to prescribed antiplatelet medications [RR=13.375,95% CI (1.075,175.536),P=0.044] were significant risk factors for graft occlusion. Conclusion The graft patency is satisfactory at 1 year after CABG. Graft patency after CABG is closely related to the stenosis degree of target vessels and adherence to prescribed antiplatelet medications after surgery.

    Release date:2016-08-30 05:51 Export PDF Favorites Scan
  • CLINICAL SIGNIFICANCE OF ELECTROPHYSIOLOGICAL DOMINANCE ANALYSIS OF TRICEPS BRACHIIMUSCLE/EXTENSOR DIGITORUM COMMUNIS MUSCLE INNERVATION IN IPSILATERAL C7 TRANSFER

    Objective To analysis the electrophysiological dominance weight of the triceps brachii muscle/extensordigitorum communis muscle innervated by brachial plexus and to conclude its effect on the ipsilateral C7 transfer so as to offer electrophysiological data for the safety and indication of i psilateral C7 transfer. Methods From August 2007 to October 2007, 15 patients with complete brachial plexus nerve root avulsion received contralateral C7 transfer. There were 13 males and 2 females aged 18-49 years (28 years on average). Injury was caused by fall ing in 1 case, by crush in 2 cases and by traffic accident in 12 cases, involving left side in 8 cases and right side in 7 cases. The upper, middle and lower trunk of the brachial plexus were stimulated respectively, the compound muscle action potential (CMAP) at the triceps brachii muscle/extensor digitorum communis muscle was recorded, and then the electrophysiological dominance weight of the triceps brachii muscle/extensor digitorum communis muscle innervated by brachial plexus was confirmed according to the comparison of the ampl itude percentage of the CMAP by three trunks. The muscle strength of triceps brachii muscle/extensor digitorum communis muscle was evaluated and the electromyogram was taken 6 months after operation. Results All patients were followed up for 6 months. Concerning the electrophysiological dominance weight, the triceps brachii muscle was mainly innervated by uppermiddle trunk in 3 cases (20%), by middle-lower trunk in 3 cases (20%), by whole trunk in 7 cases (47%) and by middle trunk in 2 cases (13%). While the extensor digitorum communis muscle was mainly innervated by middle-lower trunk in 3 cases (20%), by whole trunk in 10 cases (67%) and by lower trunk in 2 cases (13%). Concerning the triceps brachii muscle, 2 patients got the muscle strength of 4 grade with recruitment simple phase at 1 month after operation and returned to normal at 3 month after operation, while 13 patients got the muscle strength of 5 grade with recruitment simple or mixed phase at 1 month after operation. Concerning the extensor digitorum communis muscle, the muscle strength and the recruitment phase of all 15 patients recovered to normal at 1 month after operation. Conclusion To patients with various kinds of electrophysiological dominance weight, the cutting of C7 does not substantially damage the triceps brachii muscle or extensor digitorum communis muscle, indicating that the ipsilateral C7 transfer is safe and feasible. However, it should be appl ied prudently for the patients with high dominance weight since it may result in the short-term decrease of triceps brachii muscle strength.

    Release date:2016-09-01 09:17 Export PDF Favorites Scan
  • EXPERIMENTAL STUDY ON NEURAL STEM CELL TRANSPLANTATION DELAYING DENERVATED MUSCLEATROPHY

    Objective To observe the delaying effect of neural stem cell (NSC) transplantation on denervated muscle atrophy after peri pheral nerve injury, and to investigate its mechanism. Methods NSCs were separated from the spinal cords of green fluorescent protein (GFP) transgenic rats aged 12-14 days mechanically and were cultured and induced to differentiate in vitro. Thirty-two F344 rats, aged 2 months and weighed (180 ± 20) g, were randomized into two groups (n=16 per group). The animal models of denervated musculus triceps surae were establ ished by transecting right tibial nerve and commom peroneal nerve 1.5 cm above the knee joints. In the experimental and the control group, 5 μL of GFP-NSCsuspension and 5 μL of culture supernatant were injected into the distal stump of the tibial nerve, respectivel. The generalcondition of rats after operation was observed. At 4 and 12 weeks postoperatively, the wet weight of right musculus tricepssurae was measured, the HE staining, the Mallory trichrome staining and the postsynaptic membrane staining were adopted for the histological observation. Meanwhile, the section area of gastrocnemius fiber and the area of postsynaptic membrane were detected by image analysis software and statistical analysis. Results The wounds in both groups of animals healed by first intension, no ulcer occurred in the right hind l imbs. At 4 and 12 weeks postoperatively, the wet weight of right musculus triceps surae was (0.849 ± 0.064) g and (0.596 ± 0.047) g in the experimental group, respectively, and was (0.651 ± 0.040) g and (0.298 ± 0.016) g in the control group, respectively, showing a significant difference (P lt; 0.05). The fiber section area of the gastrocnemius was 72.55% ± 8.12% and 58.96% ± 6.07% in the experimental group, respectively, and was 50.23% ± 4.76% and 33.63% ± 4.41% in the control group, respectively. There were significant differences between them (P lt; 0.05). Mallory trichrome staining of muscle notified that there was more collagen fiber hyperplasia of denervated gastrocnemius in the control group than that in the experimental group at 4 and 12 weeks postoperatively. After 12 weeks of operation, the area of postsynaptic membrane in the experimental group was (137.29 ± 29.14) μm2, which doubled that in the control group as (61.03 ± 11.38) μm2 and was closer to that in normal postsynaptic membrane as (198.63 ± 23.11) μm2, showing significant differences (P lt; 0.05). Conclusion The transplantation in vivo of allogenic embryonic spinal cord NSCs is capable of delaying denervated muscle atrophy and maintaining the normal appearance of postsynaptic membrane, providing a new approach to prevent and treat the denervated muscle atrophy cl inically.

    Release date:2016-09-01 09:17 Export PDF Favorites Scan
  • The Contribution of Aggressive Lipid Lowering by Lipitor to Cardiovascular Events after Percutaneous Coronary Intervention

    Objective To explore the effects of aggressive lipid lowering therapy and its influence on cardiovascular events using lipitor (20 mg daily) for Chinese people after percutaneous coronary intervention (PCI). Methods We did a double-blind and randomized controlled trial. From July 2005 to June 2006, 120 patients with PCI procedure who were discharged from the Shanghai Chest Hospital were randomly divided into aggressive lipid lowering group (atorvastatin 20 mg daily, n=60) and an ordinary lipid lowering group (atorvastatin 10 mg daily, n=60). The trial treatment was administered from the day of PCI to the third month after PCI. Atorvastatin at 10 mg daily was then used until one year after PCI. Blood biochemistry, cardiovascular events and drug adverse reactions were compared between the two groups. Results Among the 120 patients, 5 discontinued treatment and 4 more withdrew from the study. Therefore 115 and 111 were included in our main analyses [Comment from Mike: it is not ITT if the 5 who discontinued treatment are excluded] and a per-protocol (PP) analysis, respectively. Baseline clinical characteristics were comparable between the two groups. The reduction in TG and the increase in HDL-C were similar between the two groups (Pgt;0.05), but the reductions in LDL-C and TC were significantly different between the two groups (Plt;0.05). This was observed from the beginning of follow-up to the third month after PCI. In the PP analysis, the percentage of patients whose LDL-C met the predefined requirement at the third month in the 20 mg group was significantly higher than in the group receiving the lower dose (87.03% vs. 70.17%, P=0.031). A similar result was also obtained if the patients who withdrew were retained in the analysis (P=0.044). The change in C reaction protein (CRP) from baseline at the first and the third month was significantly different between the two groups (Plt;0.05), but become relatively stable at the sixth month (Pgt;0.05). The mean follow-up duration was 6.5±3.0 months in the higher dose group, with 1 case of recurring angina pectoris and 1 case of revascularization were identified. It was 7.2±3.6 months in the 10 mg daily group, with 3 cases of recurring angina pectoris, 1 case of nonfatal myocardial infarction, 2 cases of revascularization and 1 case of sudden cardiogenic death. The difference in the Kaplan-Meier event curves was of borderline statistical significance from the fourth month (P=0.048). Drug adverse reactions were mild and myopathy was not identified in any patients. Conclusions After PCI procedure, the use of atorvastatin 20 mg daily for aggressive lipid lowering was safe and effective.

    Release date:2016-09-07 02:15 Export PDF Favorites Scan
  • Repair of thumb defects with modified radial dorsal fasciocutaneous flap of thumb

    ObjectiveTo investigate the operative method of repairing soft tissue defect of the thumb with modified radial dorsal fasciocutaneous flap and its effectiveness.MethodsBetween June 2015 and December 2016, 15 patients with volar or dorsal defects of the thumb were treated with modified radial dorsal fasciocutaneous flaps which distal pedicles were cut off. Of 15 cases, 11 were male and 4 were female, aged 35-70 years (mean, 46 years). The causes of injury included crush injury in 12 cases and avulsion injury in 3 cases. Because all patients had volar or dorsal defects of the thumb which were accompanied by tendon or bone exposure, they had no condition or desire to replant. There were 12 cases of volar defect of thumb and 3 cases of dorsal defect. The area of defects ranged from 2.0 cm×1.2 cm to 3.0 cm×2.5 cm. The time between injury and operation was 16 hours to 2 days (mean, 30.4 hours). The radial dorsal fascio-cutaneous flaps of 2.3 cm×1.5 cm to 3.3 cm×2.8 cm in size were adopted to repair defects. The donor sites were directly sutured.ResultsAll flaps survived, and no severe swelling or tension blister occurred. The donor sites and wounds healed by first intention. All patients were followed up 3-12 months (mean, 6 months). The color and texture of the grafted flaps were similar to those of normal skin, with no bloated appearance. According to total active motion standard at last follow-up, the finger function was excellent in 8 cases and good in 7 cases.ConclusionModified radial dorsal fasciocutaneous flap of the thumb is a reliable flap with easy dissection and less trauma in repair of soft tissue defects of the thumbs, and satisfactory clinical outcome can be obtained.

    Release date:2017-07-13 11:11 Export PDF Favorites Scan
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