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find Author "CHEN Xiao" 8 results
  • Therapeutic effects of strontium-89 to prevent bone metastases of lung neoplasms:A clinical analysis of 30 cases

    Objective To investigate the therapeutic effects of strontium-89 to prevent bone metastases of lung neoplasms.Methods Thirty patients with bone metastases of lung neoplasms received strontium-89 treatment (89SrCl2) at a dose of 148 MBq through intravenous injection.The analgesic effect was assessed by VAS method and doses or frequency of using analgesic drugs.Other efficacy parameters included changes in the number of osseous lesions and urinary levels of pyridinoline and deoxypyridinoline on the day 28 after therapy.Results The total pain relief rate was 73.3%(22/30),among which 5(16.6%) cases with pain vanished,suggesting significant alleviation of the pain intensity by the treatment(Plt;0.001) on the day 28 after therapy.The number of lesions decreased in 16 cases with effective rate of 53.3%,showing the bone metastases significantly decreased after the therapy (Plt;0.001).The urinary levels of pyridinoline and deoxypyridinoline on the day 28 after therapy were (62.48±37.25)nmol/mmol Cr and (13.94±8.66)nmol/mmol Cr,respectively,which were decreased significantly compared to the levels before treatment which were (100.15±48.65)nmol/mmol Cr and (31.25±15.32)nmol/mmol Cr,respectively (both Plt;0.001).Conclusion Strontium-89 is effective to relieve pain and prevent bone lesions in patients with bone metastases of the lung neoplasms.

    Release date:2016-09-14 11:53 Export PDF Favorites Scan
  • Laser-induced choroidal neovascularization inhibited by tetrandrine in rats

    Objective To investigate the effect of tetrandrine (Tet) on experimental choroidal neovascularization and the effect of Tet on retinal structure and function. Methods Choroidal neovascularization was induced in 20 Brown Norway (BN) rats (40 eyes) by diode laser (wavelength: 810 nm; exposal time: 0.1 second; facular diameter:100 mu;m; energy: 120 mW), and the rats were divided randomly into experimental and control group with 10 rats (20 eyes) in each group. In experimental group, 0.05 ml Tet with the concentration of 3.21 mu;mol/L was injected intravitreously 0 and 3 days after laser photocoagulation; in the control group, the rats underwent an intravitreous injection with the same volume of sodium chloride solution. The incidence of CNV was evaluated by fundus fluorescein angiography (FFA) 14 days after laser photocoagulation. Five right eyes of another Five healthy BN rats underwent intravitreous injection with 0.05 ml Tet with the concentration of 3.21 mu;mol/L, and an intravitreous injection with the same volume of sodium chloride solution was performed on the left eyes. Before injection, 1 hour, and 1 day after the first injection, and 1 hour, 1 day, 7 days, 14 days after e second injection the electroretinography (ERG) was performed on these 5 rats; 14 days after the second injection, the retinae were examined by light microscopy and transmission electron microscopy. Results The incidence of CNV was 23.26% in experimental group,which was obviously lower than that in the control group (63.33%) (Plt;0.01). The ratio of amplitude of b wave of ERG in the rats undergone intravitreous injection with 3.21 mg/ml Tet didnprime;t differ much from which before the injection (Pgt;0.05). There were no structural changes of retinal tissues examined by light and electron microscopy. Conclusion Tet may inhibit choroidal neovascularization in rats; there isnprime;t any significant toxic effect of intravitreous injection with Tet on retina at the dosage of 3.21 mu;mol/L.  (Chin J Ocul Fundus Dis, 2006, 22: 242-244)

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
  • Evaluation of predictive value of six thrombosis assessment scales for deep vein thrombosis in patients with gastrointestinal tumors

    ObjectiveTo compare the predictive value of six thrombotic risk assessment scales, including Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT, for the deep venous thrombosis (DVT) of lower extremity in patients with gastrointestinal tumors. MethodsThe patients with gastrointestinal tumors who received surgical treatment in the General Surgery Department of Lanzhou University Second Hospital from March 2023 to October 2023 were collected. The risk of DVT on day 3 after surgery for the patient with gastrointestinal tumors was prospectively evaluated using the Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT assessment scales. And the DVT was detected by ultrasound examination. The pionts of six thrombotic risk assessment scales were compared between the patient with DVT and without DVT based on the ultrasound examination results. The predictive value of the six thrombotic risk assessment scales for the lower extremity DVT in the patients with gastrointestinal tumors was evaluated by the area under receiver operating characteristic curve (AUC). ResultsA total of 108 patients who met the criteria, including 71 males and 37 females, were enrolled, age ranged from 18 to 85 years old, (58.3±11.2) years old. Fourty-two cases (38.9%) of DVT occurred. The age of patients with DVT was older than that of patients without DVT (P<0.05), but there were no statistical differences in the gender, body mass index, tumor location, comorbidities, and so on (P>0.05). The points of Autar, Padua, and Caprini in the patients with DVT were higher than those in the patients without DVT (P<0.05), while there were no statistical differences in the points of Wells, Khorana, and COMPASS-CAT between the two (P>0.05). The AUC for differentiating the occurrence of DVT in the patients with gastrointestinal tumors using the Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT assessment scales were 0.907, 0.548, 0.636, 0.627, 0.589, and 0.535, respectively; The sensitivities were 97.6%, 14.3%, 52.4%, 83.3%, 47.6%, and 21.4%; The specificities were 2.4%, 85.7%, 47.6%, 16.7%, 52.4%, and 78.6%, respectively. ConclusionAccording to the abilities of Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT to distinguish the occurrence of DVT in patients with gastrointestinal tumors after surgery, only the Autar evaluation scale is found to be more effective, while the other five evaluation scales are generally able to distinguish the occurrence of DVT.

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  • Therapy advances of non-biological artificial liver

    Objective To summarize present situation and development of non-biological artificial liver. Method The related literatures about artificial liver treatment in recent years were reviewed. Results The current artificial liver which applied to clinic mainly are non-biological artificial liver, including plasma exchange, hemodialysis, hemofiltration, bilirubin adsorption, hemoperfusion, molecular adsorption recycling, etc. Because of the individual clinical cases, the individualized requirements for treatment are put forward. Single treatment of non-biological artificial liver is often unable to satisfy the individualized requirements, combined the advantages of each treatment so as to maximum therapeutic effect for patients has become a trend. Conclusion Combined treatment of non-biological artificial liver is superior to single treatment, individual treatment concept should be carried out in whole process of treatment.

    Release date:2017-05-04 02:26 Export PDF Favorites Scan
  • Status Survey on Infertile Inpatient’s Characteristics, Disease Cause and Cost Constitution in Pingjin Hospital in Tianjin from 2008 to 2010

    Objective To investigate infertile inpatients hospitalized in Pingjin Hospital in Tianjin from 2008 to 2010, so as to provide baseline data for further research. Methods According to diagnosis criteria of WHO, we collected demographical characteristics, disease cause and cost constitution of infertility inpatients hospitalized in Pingjin Hospital in Tianjin from 2008 to 2010. The data of each patient were input into ACCESS database and SPSS 13.0 was used for statistical analysis. Results a) From 2008 to 2010, there were 1 452 infertile patients from 33 different areas of mainland China, 79.7% of which was from the north of China. b) The mean age was 31.2±4.3 years old. The percentage of patients aged 30 to 34 years accounted for the most (40.3%). Mental laborers (23.3%) were more than physical laborers (7.2%). 36.7% of patients received education from universities and 83.1% of patients had family income ranging from 20,000 yuan to 190,000 yuan. c) The mean age of the first sexual activity was 21.4±2.9 years old. 53.7% of patients had only one sexual partner and most couples had sexual activities twice every week. The mean age of husbands was 32.9±5.5 years old with the highest percentage of 30 to 35 years old (39.2%). The percent of intellectual work of husband was the highest (35.9%). 64.9% of patients had normal semen analysis results and 23.0% never took related examination. d) 29.9% of patients was primary infertility and 70.1% was secondary infertility, of which 57.6% had either induced or medical abortion. The mean duration of infertility was 5.2±3.5 years (range 1 to 21 year). e) 76.3% of infertile patients had pelvic adhesion and 88.6% suffered from tubal disease. Among the tubal infertile patients, 23.6% had uterine disease, 5.2% had ovarian disease, 5.0% had endometriosis, 6.7% had multiple problems, and 4.8% had unexplained infertility. In patients with tubal infertility, the incidence of distal fimbria atresia (45.8%) was higher than that of proximal block (32.9%). 24.7% of patients with fimbria atresia had hydrosalpinx and among of them, 21.1% had no hydrosalpinx. 15.2% had congenital tubal defects. f) The average hospital stay was 10.5 days and the cost was 14 253.3 yuan per person. The percentage of material cost was 29.1% and that of drugs was 18.2%. Conclusion a) The total number of infertile inpatients was 1 452 in gynecology department of Pingjin Hospital of Tianjin from 2008 to 2010. 79.7% of patient was from North China. Most of them were 30 to 34 years old and 44.3% had no job. The percentage of patients had university education and that of low-middle family income was the highest. Sexual activity was relatively traditional. Most husbands were 30 to 35 years old and intellectual workers, and 23.0% of them had never taken an examination of semen analysis. More patients were secondary infertile, and the duration of infertility was 1 to 21 years. b) 76.3% of patients had pelvic adhesion and 88.6% had tubal disease. The incidence of distal tubal fimbria atresia was higher than proximal tubal occlusion. c) The average hospital stay was 10.5 days and the cost was 14 253.3 yuan per person which was further lower than each cycle cost of assisted reproductive technology. The overall costs included materials and drugs (47.3%), which were mainly at patients’ own expense.

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  • Experience in diagnosis and treatment of KD-ⅢM dislocation of knee joint

    ObjectiveTo explore the effectiveness of one-stage posterior medial corner (PMC) repair or reconstruction combined with anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) reconstruction in treating KD-ⅢM dislocation. Methods The clinical data of 15 patients with knee KD-ⅢM dislocation who met the selection criteria between January 2016 and July 2019 were retrospectively analyzed. There were 9 males and 6 females, aged 22-61 years (mean, 40.3 years). Injuries were caused by violence of flexion, valgus, and external rotation, including 10 cases of traffic accident injuries, 3 cases of crush injuries, 1 case of winch injury, and 1 case of explosion injury. The time from injury to operation ranged from 3 days to 6 months, with an average of 18.5 days. PMC repair combined with PCL+ACL reconstruction was performed in 10 cases in acute stage (within 3 weeks after injury), including 3 cases of irreducible dislocation. PMC+PCL+ACL reconstruction was performed in 5 cases with chronic dislocation. Before operation and at last follow-up, the knee joint function was evaluated by Lysholm score and International Knee Documentation Committee (IKDC) 2000 score. KT-3000 was used to evaluate the forward stability of the knee (calculated the difference of tibial anterior displacement of both knees), the X-ray films of the stress position of the knee joint was used to evaluate the valgus of the knee (calculated the difference of medial joint space width of both knees) and the backward stability (calculated the difference of tibial posterior displacement of both knees), and the internal and external rotation stability was evaluated by knee flexion 30° tibial external rotation and knee flexion 90° tibial internal rotation tests (calculated the difference of tibial internal rotation and the difference of tibial external rotation of both knees). Results The operation time was 120-240 minutes, with an average of 186.5 minutes. Patients were followed up 24-48 months, with an average of 27.4 months. There was no complication such as infection, deep vein thrombosis, vascular injury, or heterotopic ossification. At last follow-up, the Lysholm score, IKDC2000 score, the difference of tibial anterior displacement of both knees, the difference of medial joint space width of both knees, the difference of tibial posterior displacement of both knees, the difference of tibial internal rotation and the difference of tibial external rotation of both knees significantly improved when compared with preoperative ones (P<0.05). According to the IKDC2000 valgus stability grading standard, there were 3 cases of grade C and 12 cases of grade D before operation, and 10 cases of grade A and 5 cases of grade B at last follow-up, which was significantly improved when compared with that before operation (Z=−4.930, P=0.000). At last follow-up, the pivot shift tests of 15 patients were negative. The anterior and posterior drawer tests of 10 patients were negative, 5 patients had mild instability, both the anterior and posterior drawer tests were positive. ConclusionKD-ⅢM dislocation of the knee joint can lead to the posterior medial and anterior instability. Acute dislocation combined with “dimple sign” requires surgical reduction as soon as possible to repair PMC and reconstruct PCL and ACL. In chronic patients, PMC is difficult to repair, it is recommended to reconstruct PMC, PCL, and ACL at one stage to improve knee joint stability. The early and middle effectiveness are satisfactory.

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  • Study on clinical characteristics and surgical methods of bucket-handle meniscal tears

    Objective To summarize the clinical features, surgical methods, and prognosis of bucket-handle meniscal tears (BHMTs), and provide guidance for clinical treatment. Methods The clinical data of 91 BHMTs patients (91 knees), who met the selection criteria and were admitted between January 2015 and January 2021, was retrospectively analyzed. There were 68 males and 23 females. Age ranged from 16 to 58 years with an average of 34.4 years. The injury was caused by sports in 68 cases, traffic accident in 15 cases, and falls or sprains in 8 cases. There were 49 cases of left knee injury and 42 cases of right knee injury. The time from the onset of symptoms to the admission ranged from 1 day to 13 months (median, 18 days), including >1 month in 35 cases and ≤1 month in 56 cases. Medial BHMTs occurred in 52 cases and lateral BHMTs in 39 cases. There were 36 cases with ACL rupture and 12 cases with discoid meniscus. The knee extension was limited more than 10° in 55 cases. According to the condition of meniscus injury, the meniscus suture with Inside-out combined with All-inside techniques (54 cases) or meniscoplasty (37 cases) under arthroscopy were selected. ACL reconstruction was performed in all patients with ACL rupture with autogenous hamstring tendon. Postoperative complications were observed. International Knee Documentation Committee (IKDC) score, Lysholm score, and Tegner score were used to evaluate knee function, and clinical failure was recorded. Results Two patients developed intermuscular venous thrombosis, which improved after oral anticoagulant therapy. No vascular injury, postoperative infection, joint stiffness, or other complications occurred in all patients. All patients were followed up 24-95 months, with a median of 64 months. A total of 12 cases (13.19%) failed the operation and were re-operated or given oral anti-inflammatory analgesics and rehabilitation therapy. At last follow-up, IKDC score and Lysholm score of 91 patients significantly increased when compared with those before operation (P<0.05), while Tegner score significantly decreased (P<0.05). The above indexes of patients treated with meniscus suture and meniscoplasty were also significantly different from those before operation (P<0.05). ConclusionBHMTs occurs mostly in young men and is one of the important reasons for the limitation of knee extension after trauma. Arthroscopic meniscus suture and meniscoplasty can obtain good effectiveness according to individual conditions of patients. But the latter can better preserve the shape and function of meniscus, and theoretically can obtain better long-term outcomes, which needs to be confirmed by further research with larger sample size.

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  • An empirical study on evaluation of clinical applicability of kidney transplantation guideline

    ObjectivesTo establish statistical analysis and result reporting model for evaluation of the applicability of the clinical guidelines. We conducted empirical study for clinical guidelines for diagnosis and treatment of renal transplantation rejection in China.MethodsA cross-sectional survey was conducted to select 16 medical institutions in China which had carried out kidney transplantations. In each medical institution, 6 to 8 clinicians from the kidney transplantation department or related departments were selected to complete the questionnaire. Descriptive analysis was carried out for characteristics of evaluators, scores of each dimension, access to guidelines and factors affecting implementation. The Kruskal-Wallis rank sum test and Nemenyi test were used for multi-group comparison and pairwise comparison. Multiple linear regression with stepwise strategy were used to screen out the association factors.ResultsIn this survey, 128 questionnaires were distributed, in which 105 valid questionnaires were collected, and the recovery rate was 82.03%. The subjects of this survey were all kidney transplant clinicians from public tertiary hospitals, with an average 10.95 years of working time. The results showed the accessibility score was lowest and the acceptability score was highest. The results of multi-group comparison and multiple linear regression analysis showed that familiarity with the guidelines was the influencing factor of each score (P<0.05). The guidelines were primarily obtained from biomedical literature database (73.3%), academic journals (55.2%) and academic conferences (55.2%). Among the evaluators, 44 (41.9%) believed that there were implementation obstacles in the guidelines, among which 40 (38.1%) believed that implementation obstacles were environmental factors.ConclusionsThe applicability of clinical guidelines for diagnosis and treatment of renal transplantation rejection in China is adequate. However, the publicity of the guideline requires improvement. As the guideline is updated, consideration should be given to including access to the guideline, adding free public information promotion, and familiarizing clinicians with the guidelines through training programs to promote application of the guideline.

    Release date:2020-06-18 09:20 Export PDF Favorites Scan
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