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find Author "杨涛" 22 results
  • 浅谈影响中药质量的主要因素及对策

    【摘要】从中药的品种、产地、种植采集、炮制加工、储藏保管等环节,分析探讨影响中药质量的各种因素,提出一些解决问题的建议。

    Release date:2016-09-08 09:50 Export PDF Favorites Scan
  • Progress of Locoregional Surgery for Breast Cancer Patients after Neoadjuvant Chemotherapy

    ObjectiveTo discuss the strategy of locoregional surgery for breast cancer patients after neoadjuvant chemotherapy. MethodThe pertinent literatures about locoregional surgery concerning breast-conserving therapy, factors of ipsilateral breast tumor recurrence, pathological shrinkage modes of breast primary tumor, and sentinel lymph node biopsy after neoadjuvant chemotherapy were reviewed. Results①The major benefit of neoadjuvant chemotherapy was to increase the proportion of breast-conserving therapy after downstaging the primary breast tumor. However, the use of breast-conserving therapy after neoadjuvant chemotherapy might remain a higher risk of ipsilateral breast tumor recurrence. It was now widely recognized that the risk factors for ipsilateral breast tumor recurrence were multifocal pattern of residual tumor and pathologic residual tumor larger than 2 cm. The shrinkage mode of the primary breast tumor after neoadjuvant chemotherapy and its relative factors were still unclear. 2 Sentinel lymph node biopsy(SLNB) was feasible either before or after neoadjuvant chemotherapy and approval by SLNB guideline and expert consensus. Patients with a cN0 status could get more benefits from SLNB after neoadjuvant chemotherapy. Although there was a bright future for SLNB as an alternative to ALND for patients with primary cN1 and downstaging to cN0 after neoadjuvant chemotherapy, it needed to obtain the accepted clinical identification rate, false negative rate, as well as similar regional recurrence rate and overall survival as compared to ALND. ConclusionsCurrently, surgical management is crucial for reducing the locoregional recurrence risk of breast cancer after neoadjuvant chemotherapy, no matter what the clinical and radiographic efficacy of neoadjuvant chemotherapy is. In the era of genomics and SLNB, individual locoregional surgical management could be arrived according to the primary stage and neoadjuvant chemotherapy response.

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  • 风湿性二尖瓣狭窄心房颤动患者HCN4基因cDNA序列测定及mRNA的表达

    摘要: 目的 通过分析风湿性心脏病二尖瓣狭窄患者心房肌组织超级化激活环核苷酸调控通道基因家族4(HCN4)基因表达与心房颤动发生的关系,为探讨心房颤动发生的机制奠定理论基础。 方法 52例风湿性二尖瓣狭窄患者,根据是否合并心房颤动将其分为两组,实验组:38例,男18例,女20例;年龄26~68岁,平均年龄46.47岁;均合并心房颤动。对照组:14例,男6例,女8例;年龄21~62岁,平均年龄42.93岁;不合并心房颤动。提取并逆转录两组患者心房肌组织中HCN4基因的总核糖核酸(RNA),应用SYBR GreenⅠ荧光染料, 建立检测 HCN4基因信使RNA(mRNA)的实时荧光定量聚合酶链反应 (PCR)法,并对PCR产物测序进行分析。根据标准曲线计算出两组心房肌组织中HCN4基因 mRNA含量,并以HCN4基因mRNA和内参β肌动蛋白(β-actin)含量的比值作为评价HCN4基因mRNA表达水平指标。 结果 测定HCN4基因cDNA 序列同源性为100%。建立的实时荧光定量 PCR方法在103~107拷贝数/μl的标准品梯度稀释范围内r为0.999。实验组HCN4基因mRNA与β-actin含量的相对表达值比值与对照组比较明显升高(1.323±1.226 vs. 0.116±0.192,P<0.05)。 结论 实时荧光定量PCR对HCN4基因mRNA能进行准确定量,HCN4基因的过度转录表达提示其可能参与了调控风湿性二尖瓣狭窄心房颤动的发生过程。

    Release date:2016-08-30 06:01 Export PDF Favorites Scan
  • 应用医护一体化提高眼科手术部位标识率

    目的了解实施医护一体化模式对提高眼科手术部位标识率的效果。 方法2013年6月-9月共调查了2 176例眼科手术患者的手术部位标识情况,其中2013年6月-7月为实施医护一体化前,共1 012例;2013年8月-9月为实施医护一体化后,共1 164例。对实施医护一体化前后眼科手术部位标识率的情况进行调查分析。 结果实施医护一体化后,眼科手术部位的标识率、规范性都有了明显的提高,标识率由改进前的52.86%提高到94.97%,标识的颜色、位置、形态有了明显的规范。 结论手术部位标识的应用大大促进了医生和护士对手术患者安全管理的关注,实施医护一体化后眼科手术部位的标识率、规范性明显提高,值得推广和应用。

    Release date:2016-10-02 04:54 Export PDF Favorites Scan
  • Analysis of the retinal and choroidal thickness in myopia patients with different diopters

    Objective To explore the retinal and choroidal thickness of myopic patients with different diopters, and analyze the change rule and its relation with the diopter. Methods From October 2015 to June 2016, a total of 161 patients (322 eyes) with myopia and 53 normal volunteers (106 eyes) were selected from Department of Ophthalmology, West China Hospital of Sichuan University. Optical coherence tomography (OCT) examination was performed in all the subjects with Macular cube 512×128 and EDI HD-OCT model in Cirrus HD-OCT 5000 of Carl Zeiss Company from Germany, measuring the retinal and choroidal thickness in macular central fovea, and 3 and 6 mm above, below, on the nose side, and on the temporal side of macular central fovea; the data were averaged. According to the different diopters, the subjects were divided into four groups, including emmetropia group with 53 patients (106 eyes), low myopia group (equivalent diopter from –0.25 to –3.00) with 64 patients (128 eyes), moderate myopia group (equivalent diopter from –3.25 to –6.00) with 47 patients (94 eyes), and high myopia group (equivalent diopter <–6.00) with 50 patients (100 eyes). All the subjects’ best corrected visual acuities were ≥0.8. The changes of retinal and choroidal thickness in myopia patients with different diopters were compared and analyzed. Results The average retinal thickness of the patients in the emmetropia group, the low myopia group, the moderate myopia group, and the high myopia group was (242.50±29.86), (238.46±23.85), (224.52±26.01), (211.91±23.07) μm, respectively; the average choroidal thickness of the patients in the emmetropia group, the low myopia group, the moderate myopia group, and the high myopia group was (220.16±66.00), (252.39±79.56), (191.09±103.03), (121.83±92.54) μm, respectively. There was no significant difference in retinal thickness between the moderate myopia group and the high myopia group (P>0.05), while the differences in retinal thickness between the remaining groups were statistically significant (P<0.05); there was no statistically significant difference between the emmetropia group and moderate myopia group (P>0.05), while the differences in choroid thickness between the remaining groups were statistically significant (P<0.05). Conclusion In general, there are decreasing trends of the retinal thickness and choroid thickness with the increase of the diopter, which may be associated with the formation process of myopia.

    Release date:2017-10-27 11:09 Export PDF Favorites Scan
  • Manifestations of acute regional occult outer retinopathy in full-field electroretinogram

    ObjectiveTo observe the full-field ERG (ff-ERG) characteristics of patients with acute regional occult outer retinopathy (AZOOR).MethodsA retrospective observational study. From June 2017 to June 2019, 62 eyes of 42 patients (AZOOR group) who were diagnosed with AZOOR in the Department of Ophthalmology of West China Hospital of Sichuan University were included in the study. All patients had no obvious localized disease on the fundus. Among 62 eyes, BCVA of 16 eyes were<0.1, BCVA of 27 eyes were ≤0.5, and BCVA of 19 eyes were>0.5. From June 2018 to January 2019, 40 normal volunteers (80 eyes) who attended the outpatient clinic of West China Hospital of Sichuan University and passed detailed ophthalmological examination to exclude all eye diseases including refractive errors were selected as the normal control group. All the examined eyes were tested with ff-ERG using the German Roland visual electrophysiological inspection system. The peak times and amplitudes of the waveforms induced by each response of dark adaptation 0.01 ERG, dark adaptation 3.0 ERG, dark adaptation 3.0 ERG, light adaptation 3.0 ERG, and light adaptation 30 Hz flicker ERG were recorded, respectively. The peak time and amplitude of each ff-ERG response between the two groups were compared by independent sample t test. The peak time and amplitude of each ff-ERG response between different BCVA eyes in the AZOOR group were compared by variance test.ResultsCompared with the normal control group, 0.01 ERG b wave of the dark adaptation of AZOOR group (t=3.601, -6.120), 3.0 ERG a wave and b wave of dark adaptation (t=2.627, -4.263, 3.719, -5.866), 3.0 Oscillation potential P2 wave of dark adaptation (t=-6.625), 3.0 ERG a wave and b wave of bright adaptation (t=3.762, -3.612, 3.648, -3.739) and 30 Hz flicker ERG P wave of bright adaptation (t=-3.832), all peak time of those were significantly delayed, the amplitude decreased, and the difference was statistically significant (P<0.05). Comparison of different BCVA eyes in the AZOOR group showed that 0.01 ERG b wave amplitude of dark adaptation (F=3.950), 3.0 ERG a peak and b wave amplitude of dark adaptation (F=4.408, 4.876), oscillation potential P2 wave amplitude of dark adaptation (F=4.295), 3.0 ERG b wave amplitude of bright adaptation (F=4.344) and 30 Hz flicker ERG P wave amplitude of bright adaptation (F=4.483) of differences were statistically significant (P<0.05). There was no statistically significant difference in waveform peak time and amplitude of the other reactions (P>0.05). Pairwise comparison results showed that, compared with those with 0.1≤BCVA≤0.5 and BCVA>0.5, those with BCVA<0.1 dark adaptation to 0.01 ERG b wave, dark adaptation 3.0 ERG b wave, dark adaptation oscillation potential P2 wave, and light adaptation 3.0 ERG b wave and light adaptation 30 Hz scintillation ERG P wave amplitude were significantly reduced, and dark adaptation to 3.0 ERG a peak was significantly delayed, the difference was statistically significant (P<0.05).ConclusionsThe ff-ERG of patients with AZOOR show delayed peak time and decreased amplitude of each response. The worse BCVA are accompanied by the more obvious decrease of each response amplitude of ff-ERG.

    Release date:2020-12-18 07:08 Export PDF Favorites Scan
  • 指动脉顺行岛状皮瓣修复手指末节皮肤软组织缺损

    目的 总结指动脉顺行岛状皮瓣修复手指末节皮肤软组织缺损的临床疗效。 方法 2008 年8 月-2010 年6 月,收治18 例手指末节皮肤软组织缺损。男11 例,女7 例;年龄18 ~ 45 岁,平均28.4 岁。缺损部位:指端12例,指腹6 例。 软组织缺损范围为1.5 cm × 1.0 cm ~ 3.0 cm × 1.8 cm,均伴不同程度肌腱或指骨外露。受伤至手术时间为1 ~ 6 h。术中应用大小为1.7 cm × 1.2 cm ~ 3.2 cm × 2.0 cm 的同指指动脉顺行岛状皮瓣修复手指末节皮肤缺损,供区直接缝合或游离植皮修复。 结果 1 例皮瓣于术后24 h 出现供血不足,对症处理后成活;其余皮瓣及植皮均成活,供、受区切口均Ⅰ期愈合。术后16 例获随访,随访时间6 ~ 18 个月,平均12 个月。皮瓣血供、质地及弹性良好,外形佳。皮瓣两点辨别觉为3.5 ~ 5.0 mm,平均4.2 mm。指间关节活动正常。 结论 应用指动脉顺行岛状皮瓣修复手指末节皮肤软组织缺损,具有手术操作简便、安全的优点,术后手指外形较好,可恢复感觉及关节活动。

    Release date:2016-08-31 05:44 Export PDF Favorites Scan
  • Application of Music Therapy on Children and Adolescent Emotional Disorder

    目的 探讨音乐疗法在儿童青少年情绪障碍患者中的应用效果。 方法 2011年1月-7月,将70例儿童青少年情绪障碍患者随机分为试验组和对照组,每组各35例,对照组给予常规药物治疗和护理,试验组除给予常规治疗和护理外,结合音乐治疗。用汉密尔顿抑郁量表、汉密尔顿焦虑量表对其情绪进行评价。 结果 两组在疗程结束后,汉密尔顿焦虑量表和抑郁量表评分差异具有统计学意义(P<0.01)。 结论 音乐治疗在改善儿童青少年情绪障碍方面具有显著作用。

    Release date:2016-09-08 09:13 Export PDF Favorites Scan
  • 孤独症谱系障碍儿童的家庭负担及康复治疗研究进展

    孤独症谱系障碍(ASD)是一类以社会交往障碍、交流障碍、兴趣狭窄和刻板重复的行为方式为特征的心理发育障碍性疾病。现从 3 个角度对 ASD 儿童家庭负担及康复治疗研究进展进行综述:以点来看, ASD 儿童对家庭有严重影响;以横切面看, ASD 儿童各阶段的康复需要多方的参与;以时间轴纵看, ASD 儿童的康复计划是随着成长动态变化的过程。期望以上内容能为相关领域未来的研究提供参考。

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  • Mid- and long-term effectiveness of total hip arthroplasty with Ribbed femoral stem prosthesis in 354 cases

    ObjectiveTo evaluate the mid- and long-term effectiveness of total hip arthroplasty (THA) with Ribbed femoral stem prosthesis.MethodsA clinical data of 354 patients (384 hips) with hip disease who underwent THA with Ribbed femoral stem prostheses between October 2006 and May 2016 was retrospectively analyzed. There were 171 males and 183 females, with an average age of 53.4 years (range, 20-82 years). There were 324 cases of single hip and 30 cases of bilateral hips. The cause of THA included the avascular necrosis of the femoral head in 151 cases (159 hips), hip osteoarthritis in 134 cases (136 hips), rheumatoid arthritis in 43 cases (43 hips), ankylosing spondylitis in 20 cases (40 hips), and trauma in 6 cases (6 hips). The Harris score of total 354 patients before operation was 42.34±8.89. Harris scores were used to evaluate hip function after operation. X-ray films were used to determine the length of the lower limb, the radiolucent line on the femur side, the stability of the prosthesis, and the occurrence of stress shielding.ResultsThe incisions healed by first intention. All patients were followed up 2-11 years with an average of 7.4 years. The Harris score at last follow-up was 80.52±7.61, which significantly increased when compared with preoperative score (t=134.804, P=0.000). Two cases (2 hips) of prosthetic infections, 3 cases (3 hips) of prothesis loosening, and 4 cases (4 hips) of periprosthetic fractures, and 48 cases (48 hips) of mild to moderate thigh pain occurred after operation. X-ray films showed 76 cases (78 hips) with radiolucent lines on the femur side and stress shielding. According to the Engh’s method, there were 364 hips of bone ingrowth, 15 hips of fibrosis ingrowth, and 5 hips of prosthesis instability. The femoral stem subsidence occurred in 25 cases (25 hips), and the difference in leg length discrepancy was more than 10 mm in 5 patients.ConclusionTHA with Ribbed femoral stem prosthesis can achieve satisfactory effectiveness with good initial stability and rapid bone growth. The incidence of stress shielding is relatively high, but the stress shielding has no significant impact on the mid- and long-term survival rate and effectiveness of femoral prosthesis.

    Release date:2019-08-23 01:54 Export PDF Favorites Scan
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