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find Author "LIU Zheng" 17 results
  • Research progress of tibial transverse transport in treatment of chronic ischemic diseases of the lower extremities

    ObjectiveTo summarize the research progress of tibial transverse transport (TTT) in treatment of chronic ischemic diseases of the lower extremities.MethodsThe related literature was systematically searched and the mechanisms, clinical treatment methods, clinical efficacy, indications, contraindications, and complications of TTT were discussed.ResultsBased on the law of tension-stress, TTT is a new method in the treatment of chronic ischemic diseases of the lower extremities. It can relieve the ischemic symptoms, promote the wound healing, and increase the limb salvage rate. The clinical application in recent years has shown good effectiveness, and the scope of application is expanding.ConclusionDue to the current limited clinical application, the sample size of the TTT for the chronic ischemic diseases of the lower extremities is relatively small, and the follow-up time is limited. So its validity, long-term effectiveness, and bone transport standards are need further research.

    Release date:2020-08-19 03:53 Export PDF Favorites Scan
  • Progress in diagnosis and treatment of brain metastasis from colorectal cancer

    ObjectiveTo elucidate the clinical and pathological features and review the progress of diagnosis and treatment in patients with brain metastasis (BM) from colorectal cancer (CRC), so as to provide a reference for the whole process management for patients with BM from CRC in China.MethodThe latest research results and previous literatures about patients with BM from CRC were reviewed.ResultsThe prognosis of BM from CRC was poor, its molecular pathological mechanism was complex and diverse, and some risk factors associated with the occurrence of BM had been identified. Typical imaging features of BM from CRC were helpful to the diagnosis of patients. At present, radiotherapy was still the main treatment. Bevacizumab treatment or immunotherapy combined with radiotherapy was expected to improve the survival of BM from CRC.ConclusionScientific and standardized prevention, diagnosis, and treatment are beneficial to reduce incidence of BM from CRC and improve survival.

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  • Analysis of factors associated with the influence of femoral stem anteversion after total hip arthroplasty

    Objective To explore the related factors of femoral stem anteversion (FSA) after total hip arthroplasty (THA), so as to provide reference for clinical design of FSA before operation and reduce the risk of hip dislocation after arthroplasty. Methods Ninty-three patients (103 hips) who underwent THA between October 2021 and September 2022 and met the selection criteria were selected as the study subjects. Among them, there were 48 males and 45 females with an average age of 58.5 years (range, 25-88 years). Body mass index was 18.00-37.84 kg/m2, with an average of 24.92 kg/m2. There were 51 cases (57 hips) of osteonecrosis of femoral head, 35 cases (39 hips) of hip osteoarthritis, and 7 cases (7 hips) of congenital hip dysplasia. Based on CT images, the following indicators were measured: preoperative femoral neck anteversion (FNA), preoperative femoral rotation angle (FRA), preoperative acetabular anteversion (AA), and preoperative combined anteversion (CA; the sum of preoperative FNA and AA); postoperative FSA and the change in femoral anteversion angle (the difference between postoperative FSA and preoperative FNA). Based on preoperative X-ray films, the following indicators were measured: femoral cortical thickness index (CTI) and canal flare index (CFI), the proximal femoral medullary cavity was classified according to Noble classification (champagne cup type, normal type, chimney type), neck-shaft angle (NSA), and femoral offset (FO). Pearson correlation analysis, one-way ANOVA, and Point-biserial correlation analysis were used to investigate the correlation between postoperative FSA, postoperative change in femoral anteversion angle, and patient diagnosis, proximal femoral medullary cavity anatomy type, gender, age, as well as preoperative FNA, FRA, AA, CA, NSA, FO, CTI, and CFI. FSA was used as the dependent variable and the independent variables that may be related to it were included for multiple linear regression analysis. Results Based on CT image measurement, preoperative FNA was (15.96±10.01)°, FRA (3.36±10.87)°, AA (12.94±8.83)°, CA (28.9±12.6)°, postoperative FSA (16.18±11.01)°, and postoperative change in femoral anteversion angle was (0.22±9.98)°. Based on preoperative X-ray films measurements, the CTI was 0.586±0.081; the CFI was 4.135±1.125, with 23 hips classified as champagne cup type, 68 hips as normal type, and 12 hips as chimney type in the proximal femoral medullary cavity anatomy; NSA was (132.87±7.83)°; FO was (40.53±10.11) mm. There was no significant difference between preoperative FNA and postoperative FSA (t=−0.227, P=0.821). Pearson correlation analysis showed that postoperative FSA was positively correlated with preoperative FNA, preoperative CA, postoperative change in femoral anteversion angle, and age (P<0.05), while negatively correlated with preoperative FRA (P<0.05). The postoperative change in femoral anteversion angle were positively correlated with preoperative FRA and postoperative FSA (P<0.05), and negatively correlated with preoperative CA and FNA (P<0.05). One-way ANOVA analysis showed that the above two indicators were not correlated with diagnosis and the proximal femoral medullary cavity anatomy type (P>0.05). Multiple linear regression analysis showed a linear correlation between FSA and FNA, CA, age, and FRA (F=10.998, P<0.001), and the best fit model was FSA=0.48×FNA–2.551. Conclusion The factors related to FSA after THA include patient’s age, preoperative FNA, CA, FRA and postoperative femoral anteversion, of which preoperative FNA is the most closely related. When designing a surgical plan before surgery, attention should be paid to the patient’s preoperative FNA, and if necessary, CT around the hip joint should be scanned to gain a detailed understanding of the proximal femoral anatomical structure.

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  • Efficacy and safety of deproteinized calf blood extractives for dry eye syndrome: a systematic review

    ObjectiveTo systematically review the efficacy and safety of deproteinized calf blood extractives (DCBE) for dry eye syndrome. MethodsPubMed, EMbase, The Cochrane Library, CNKI, WanFang Data, CBM and VIP databases were electronically searched to collect studies on efficacy and safety of DCBE for dry eye syndrome from inception to August 31st, 2021. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies; then, meta-analysis was performed by using RevMan 5.3 software. ResultsA total of 59 studies were included. The results of meta-analysis showed that: the total effective rate of DCBE for dry eye syndrome was better than that of control (RR=1.20, 95%CI 1.12 to 1.29, P<0.000 01), sodium hyaluronate eye drops (RR=1.21, 95%CI 1.15 to 1.28, P<0.000 01), and hydroxyl sugar eye drops (RR=1.15, 95%CI 1.04 to 1.27, P=0.006). The incidence of adverse events had no statistical differences between the DCBE and the control or the sodium hyaluronate eye drops.ConclusionCurrent evidence shows that DCBE for dry eye syndrome can improve the total effective rate, and the safety is acceptable. Due to the limited quality and quantity of the included studies, more high-quality studies are needed to verify the above conclusion.

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  • Research of learning curves for unilateral biportal endoscopy technique and associated postoperative adverse events

    ObjectiveTo summarize the characteristics of the learning curve and the occurrence of postoperative adverse events during the development of unilateral biportal endoscopy (UBE) technique by comparing the clinical data of early and late patients treated with UBE technique. Methods All patients who underwent single-level UBE technique between April 1, 2020 and December 31, 2021 were selected as the research subjects. According to the surgical options, all patients were allocated into 3 groups: unilateral decompression and discectomy (UDD) group, unilateral laminotomy for bilateral decompression (ULBD) group, and lumbar intervertebral fusion (LIF) group. The first 60 cases from each group were extracted and ranked orderly. The endoscopic operation time, the times of fluoroscopy during non-internal fixation implantation, the postoperative hospital stay, the drainage volume, the decrease of hemoglobin, the decrease of hematocrit, and the adverse events were collected. In each group, the patients were allocated into early and late cases according to the operation sequence. The first 30 cases of each group were classified as early cases, and the last 30 cases as late cases. Statistical analysis was performed on the above observation indicators between the early and late cases, and a scatter plot of relevant data changes was drawn to observe the change trend. Results Compared with the early cases, the endoscopic operation time and the times of fluoroscopy during non-internal fixation implantation of late cases in each group were significantly lower (P<0.05); the postoperative hospital stay of late cases in LIF group was significantly shorter (P<0.05); the decreased values of hemoglobin and hematokrit of late cases in ULBD group and LIF group were significantly lower (P<0.05); the postoperative drainage volume of late cases in ULBD group significantly decreased (P<0.05). The endoscopic operation time and the times of fluoroscopy during non-internal fixation implantation of 3 groups showed a significant downward trend. The adverse events occurred in 3 early cases and 1 late case of the UDD group, in 6 and 3 cases of the UBLD group, and 8 and 3 cases of the LIF group, respectively. The difference was not significant between the early and late cases (P>0.05). Conclusion In the early practice of UBE technique, there is a high incidence of complication, and the surgical trauma is relatively large, which is related to the lack of understanding of the UBE technique characteristics and insufficient surgical experience. With the proficiency of surgical techniques and accumulation of experience, the operation time and the incidence of postoperative adverse events were significantly reduced.

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  • Clinical study of pain control with continuous intercostal nerve block after thoracotomy

    ObjectiveTo determine the effectiveness of continuous intercostal nerve block for pain relief after thoracotomy.MethodsFrom November 2017 to October 2018, 120 patients who received thoracotomy procedure in our hospital were collected, including 60 males and 60 females aged 40-77 (58.10±7.00) years. The patients were randomly allocated into three groups by digital table including a continuous intercostal nerve block group (group A, n=40), a single intercostal nerve block group (group B, n=40), and an epidural analgesia group (group C, n=40). All the groups received the same basic analgesia. The pain scores and rescue analgesic doses were compared.ResultsOn postoperative day (POD) 0, all groups achieved effective pain control, and the visual analogue score was 2.02±0.39 points in the group A, 2.13±0.75 points in the group B and 2.03±0.69 points in the group C (P>0.05). On POD 0-2 and POD 3-4 (without basement analgesia), there was no significant difference between the group A and group C in the pain scores (2.08±0.28 points vs. 1.93±0.53 points, 3.20±0.53 points vs. 3.46±0.47 points, P>0.05), however, the difference between POD 0-2 and POD 3-4 in each group was stastically different (group A, 2.08±0.28 points vs. 3.20±0.53 points; group B, 2.42±0.73 points vs. 5.45±0.99 points; group C 1.93±0.53 points vs. 3.46±0.47 points, P<0.05). In terms of the rescue analgesic doses, there was no significant difference between the group A and group C (220.00±64.08 mg vs. 225.38±78.85 mg, P>0.05); it was larger in the group B than that in the group A and group C (343.33±119.56 mg vs. 220.00±64.08 mg; 343.33±119.56 mg vs. 225.38±78.85 mg, P<0.05).ConclusionMultimodal analgesia is an optimal choice in the initial stage after thoracotomy surgery. Continuous intercostal nerve block is an effective way to pain management in patients with thoracotomy.

    Release date:2020-07-30 02:16 Export PDF Favorites Scan
  • The survey of enhanced recovery after surgery projects for colorectal cancer

    ObjectiveTo analyze the current situation of enhanced recovery after surgery (ERAS) application in colorectal surgery in China, and summarize the existing problems.MethodsAfter the questionnaire was developed, members of the Chinese Society of Colorectal Cancer were selected as respondents and results were collected by online questionnaire. All the respondents volunteered to visit the homepage of the questionnaire through the link address. After completing the questionnaire, they were saved and submitted.ResultsA total of 120 questionnaires were sent out and finally 107 respondents completed the electronic questionnaire survey. Among them, 73 (68.2%) routinely carried out ERAS programmes and 34 (31.8%) didn’t carry out ERAS programmes. Among the 11 ERAS programmes, most surgeons carried out 3–7 ERAS programmes, among which 4 ERAS programmes was the most (25 surgeons, 23.4%). The survey results for different ERAS programmes showed that only 4 out of 11 ERAS programmes had implemented more than half of the respondents. Respondents with older than 45 years old were more inclined not to undergo mechanical bowel preparation before surgery (P<0.001) and were more likely early postoperative oral intake (P=0.008), respondents with more than 1 000 hospital beds were more likely to select preoperative oral carbohydrate (P=0.012) and postoperative multimodal analgesia (P<0.001), respondents with more than 200 cases of colorectal surgery per year were more inclinedto take oral carbohydrate before surgery (P=0.018), and respondents whose rate of minimally invasive surgery was higher than 50% were more inclined to choose multimode analgesia (P=0.047). On the contrary, the respondents in the tumor hospitals recommended shortening the length of postoperative hospital stay and recommending early discharge (P=0.014). Hospitals that routinely performed ERAS (P<0.001), preoperative oral carbohydrate (P<0.001), without preoperative gastric tube (P=0.019), early postoperative drinking water (P=0.012), and early postoperative oral feeding (P=0.038) were associated with a shorter average postoperative hospital stay.ConclusionERAS has not been popularized in the field of colorectal surgery in China, and there are differences between different doctors and between different hospitals, which still need to be promoted continuously.

    Release date:2021-04-30 10:45 Export PDF Favorites Scan
  • Influencing factors of plasma concentration of lamotrigine in the treatment of epilepsy in children: a systematic review

    ObjectiveTo systematically review the factors influencing plasma concentration of lamotrigine (LTG) in the treatment of epilepsy in children.Methods Databases including PubMed, EMbase, The Cochrane Library, CNKI, WanFang Data, VIP and CBM were electronically searched to collect clinical studies on the factors influencing plasma concentration of LTG in the treatment of epilepsy in children from database inception to December 2020. Two researchers independently screened the literature, extracted data, and assessed the risk of bias of the included studies. A systematic review was then performed to analyze the factors influencing plasma concentration of LTG in the treatment of epilepsy in children. ResultsA total of 21 studies were included. The results of systematic review suggested that dosage and some combination drugs (valproic acid, carbamazepine, phenytoin sodium, topiramate, ethosuximide, rufinamide, fluoxetine, clonazepam, clobazam and ethinylestradiol) were potential factors influencing LTG concentration. Four gene polymorphisms (UGT1A4 142T>G, UGT1A4 219C>T, UGT1A4 163G>A, and OCT1 M408V A>G), age, weight, sex, and combination drugs (phenobarbital and levetiracetam) might affect the plasma concentration of LTG in children. The effects of oxcarbazepine, 16 gene polymorphisms (UGT1A4 *3 T>G, UGT2B7 211G>T, UGT2B7 372A>G, UGT2B7 735A>G, UGT2B7 801T>A, UGT2B7 802C>T, UGT2B7 161C>T, SCN1A IVS591G>A, SCN2A c.56G>A, SCN2A c.59G>A, MDR1 1236 C>T, MDR1 2677 G>T/A, MDR1 3435 C>T, SLC22A1 1022C>T, ABCB1 3435 C>T and ABCB1 1236C>T), ketogenic diet, and ethnicity (Uygur/Han) on the plasma concentration of LTG in children were not found. Conclusion The plasma concentration of LTG in the treatment of epilepsy in children is affected by many factors, and more high-quality prospective studies should be carried out to further clarify the factors influencing the plasma concentration of LTG in children.

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  • Establishment of the instrument for evaluating clinical applicability of guidelines (version 2.0)

    Objective To update and form an instrument for evaluating clinical applicability of guidelines (version 1.0). Methods We updated the systematic review of global guideline clinical applicability evaluation instruments to form the initial item list and carried out Delphi expert consultation to establish the instrument for evaluating clinical applicability of guidelines (version 2.0). Results The general structure of version 2.0 was consistent with that of version 1.0, which included 12 evaluation items belonging to five domains covering accessibility, readability, acceptability, feasibility, and an overall evaluation. Moreover, some new items were added in version 2.0, such as "The guideline does not provide supporting tools or resources and the operation is poor", "After the guideline implementation, the expected effects of diagnosis and treatment do not be achieved", " Medical staff in your workplace believe that the guideline is not necessary because they have sufficient medical experience, etc.", "Lack of authority of the organizations and personnel that developed the guideline" and "Medical staff in your workplace are reluctant to change the original medical practice". Conclusion This study updated and formed an instrument for evaluating clinical applicability of guidelines (version 2.0), which is able to better assess the applicability of new clinical guidelines and greatly promote more appropriate guidelines into practice.

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  • Efficacy and safety of the third-generation non-steroidal aromatase inhibitors for children with short stature: a systematic review

    ObjectiveThe growth potential of children with short stature in middle and late adolescence may be limited by the effect of estrogen on epiphyseal closure. In recent years, the third generation of non-steroidal aromatase inhibitors (AIs) have been used in the treatment of short stature but with off-label. This study aimed to systematically review the efficacy and safety of the third-generation non-steroidal AIs in the treatment of children with short stature, and to provide evidences for rational drug use in clinical practice. MethodsWe searched PubMed, Embase, Cochrane Library, CNKI, WanFang Data, VIP and CBM from inception to December 28, 2022. Relevant studies on the treatment for children with short stature using the recombinant human growth hormone (rhGH) combined with or without the third-generation non-steroidal AIs were collected. Two reviewers independently screened the literature, extracted data, and evaluated the risk of bias of the included studies. Meta-analysis was performed using RevMan 5.3 software. ResultsA total of 18 articles were finally included, involving 9 randomized controlled trials and 9 cohort studies, with a total of 1 053 patients. The Meta-analysis showed that: (1) in terms of efficacy, the final adult height (MD=2.48, 95%CI 2.02 to 2.94, P<0.01), predicted adult height (MD=4.27, 95%CI 2.71 to 5.83, P<0.01), predicted adult height difference (MD=4.26, 95%CI 3.23 to 5.28, P<0.01), bone age (MD=−0.62, 95%CI −0.89 to −0.36, P<0.01), bone age difference/actual age difference (MD=−0.47, 95%CI −0.56 to −0.37, P<0.01), and growth velocity (MD=1.34, 95%CI 0.89 to 1.78, P<0.01) at the end of treatment in the experimental group were better than those in the control group, but there was no statistical difference in the height at the end of treatment between the two groups (MD=4.03, 95%CI −0.01 to 8.06, P=0.05). (2) in terms of safety, the total incidence of adverse events in the experimental group (RR=2.10, 95%CI 1.48 to 2.99, P<0.01) was higher than that in the control group, among which the incidence of adverse events in the endocrine system and skin and subcutaneous tissue system was statistically different between the two groups (P<0.05), and the incidence of adverse events in the hepatobiliary system, kidney and urinary system, metabolism and nutrition, gastrointestinal system, musculoskeletal system, blood and lymph system, vascular and lymphatic system, and neuropsychiatric system was not statistically different between the two groups (P>0.05). ConclusionCurrent evidence shows that the third-generation non-steroidal AIs combined with rhGH can effectively improve the final height of children with short stature, but it may increase the incidence of adverse drug events. Limited by the quality and the follow-up period of the included studies, high-quality studies are still needed to demonstrate the above conclusions and further evaluate the long-term safety of AIs in children with short stature.

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