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超声生物显微镜在睫状体及其相关疾病检查中的应用

睫状体位于虹膜后，是常规眼科方法检查的ldquo;盲区rdquo;，由于它的隐蔽位置，使睫状体及其相关 疾病的临床检查和诊断十分困难。超声生物显微镜检查(ultrasound biomicroscopy,UBM)采用高频超声波作为检测能源，可穿过透明组织和非透明组织。因此，UBM不但能观察到虹膜表面的形态，还能观察到后房及虹膜后组织的情况，其令人满意的分辨力和清晰度，为临床检查睫状体的形态、位置以及病变提供了良好的工具。现对UBM在睫状体及其相关疾病检查中的应用及其临床意义作一综述。（中华眼底病杂志，2002，18：79-81）

The comparison between tendency-oriented perimetry and traditional threshold perimetry

Objective To evaluate the application of tendency-oriented perimetry (TOP) in detecting the visual function of glaucoma. Methods The traditional threshold perimetry (Normal/Normal strategy) and TOP (TOP/Normal strategy) carried out by Octopus 101 perimetry were used to examine the visual field of 20 normal subjects (20 eyes), 32 cases (32 eyes) of primary open-angle glaucoma (POAG), and 14 cases (14 eyes) of suspected POAG, respectively. The visual field outcomes, indices, point by point threshold variability and defective points of the two perimetries were compared and analysed. Results The negative rate of TOP was 90% in normal subjects. The positive rate of TOP was 75% in POAG , and 100% in middle and late stage of POAG. The visual field indices of two perimetries were positively correlated, with mean sensitivity (MS) of r=0.9335, mean defect (MD) of r=0.9189, and loss variance (LV) of r=0.9621. The point by point threshold variability and defective points of TOP were higher than those of traditional threshold perimetry, but the difference between the two perimetries was not significant (P=0.2019, P=0.4448). Conclusion The visual field indices of TOP and traditional threshold perimetry are positively correlated. The sensitivity and reproducibility of TOP are high in detecting the visual function of middle and late stage of POAG. (Chin J Ocul Fundus,Dis, 2002, 18: 269-272)

Multiple factor analysis of intraorbital hemodynamic results in diabetic retinopathy

Objective To determine the affected factors of intraorbital hemodynamic results in diabetic retinopathy (DR) and the risk factors related to the occurrence of DR. Methods Posterior ciliary artery (PCA), central retinal artery (CRA), central retinal vein (CRV), and vortex vein (VV) of 68 patients with DR were measured by color Doppler flow image (CDFI). Thirty-one hemodynamic parameters, including systolic velocity, diastolic velocity, mean velocity, resistive index, pulsatility index and accelerative velocity of ophthalmic artery (OA), and other variates (blood pressure, blood sugar, gender, age, duration of the disease, and so on) were collected and clustered in a principal components analys is following a forward, stepwise logistic regression on these components. Results Nine principal components were extracted from 37 original variates, reflecting the velocity of OA, velocity of PCA, resistance of OA, velocity of CRA,resistance of CRA, resistance of PCA, time-related factor, venous drainage factor and gender factor, respectively. In the result of logistic regression, resistance of OA, velocity of CRA, resistance of PCA, time-related factor, and venous drainage factor were the risk factors related to DR. Conclusion The first risk factor affecting DR is time, and intraorbital hemodynamic abnormity influencing the development of diabetic retinopathy may be the increase of resistance of OA, decrease of velocity of CRA, decrease of resistance of PCA, and increase of venous drainage. (Chin J Ocul Fundus Dis，2004，20：98-100)

Analysis of Cause of High Incidence of Cervical Cancer of Xinjiang Area from 2000 to 2005

摘要:目的: 调查新疆地区维吾尔族与汉族子宫颈癌及癌前病变发病情况,分析宫颈癌高发原因。 方法 : 2000年1月至2005年12月新疆自治区人民医院妇产科门诊及病房行宫颈细胞学检查的维吾尔族、汉族妇女进行筛查,对宫颈病变阳性者(CINI以上)行病理组织学检查,对结果进行对比分析、综合评价。 结果 : 宫颈涂片人数共计23 205例,其中维吾尔族6 999例、汉族16 206例。宫颈病变阳性者237例,经阴道镜下病理活组织检查证实CINI以上(包括CINI、CINII、CINIII、原位癌、鳞癌、腺癌)病变人数173例,最小年龄31岁,原位癌(维吾尔族)、最大年龄76岁,宫颈磷癌(汉族)。维吾尔族105例(6069%)、汉族68例(3931%)。每年阳性例数中维吾尔族均高于汉族,其中2000年、2001年、2004年、2005年有极显著性差异(P lt;001),2002年、2003年有显著性差异(P lt;005),维吾尔族、汉族在各年龄组中的发病情况无显著性差异(P gt;005)。 结论 : 新疆地区宫颈癌及癌前病变的高发原因是由地区环境、医疗条件、医学发展、救助措施等因素综合作用的结果。Abstract: Objective: To investigate the incidence of cervical cancer and cervical precancerous lesion of uigur nationality and han nationality, in addition, to analysis the cause of cervical cancer’s high incidence. Methods : At first screen cervical cytology of Uigur and Han outpatient and inpatient of department of gynecology and obstetrics in the People’s Hospital of Xinjiang Uigur Autonomous Region from January 1, 2000 to December 31, 2004Secondly biopsy for those patients that cervix pathological change shows positive, then contrast analysis and comprehensive evaluation. Results : Cervix smears are 23205 samples. Uigur nation has 6999 samples and Han nation has 16206 samples. There are 237 patients whose cervix pathological changes shows positive. Among them 173 samples were over CINⅠ(include CINⅠ,CINⅡ,CIN Ⅲ,carcinoma in situ, squamous carcinoma and adenocarcinoma) through colposcopy. The youngest was 31 and diagnosed carcinoma in situ(Uigur), the eldest was 76 and diagnosed squamous carcinoma(Han).The samples of Uigur is 105(6069%) and Han is 68(3931%).The positive samples in Uigur is higher than Han each year, the incidence has extremely significant difference among 2000,2001 and 2004(P lt;001), while it has significant difference between 2002 and 2003 (P lt;005), but in each age group it has no significant difference between Uigur and Han (P gt;005). Conclusion : The high incidence of cervical cancer and cervical precancerous lesion in xinjiang is contribute to environment, medical condition, medical development and aid measures coaffect.

Effect of PD-1 and PD-L1 preoperative treatment on rejection after liver transplantation of liver cancer

Objective To summarize the research progress of programmed cell death protein 1 (PD-1)/programmed cell death protein-ligand 1 (PD-L1) inhibitors before liver transplantation of liver cancer. Method The literatures on the application of PD-1/PD-L1 inhibitors before liver transplantation of liver cancer were collected and reviewed. Results PD-1/PD-L1 inhibitors preoperatively treated liver transplantation recipients had a low incidence of postoperative rejection, and routine usage of hormone and immune tolerance induction therapy in liver transplantation recipients might reduce the incidence of rejection caused by PD-1/PD-L1 inhibitors. Conclusion Preoperative usage of PD-1/PD-L1 inhibitors have more benefits than risks for patients with advanced liver cancer.

Mechanism of immune checkpoint inhibitors related adverse events

Most immune-related adverse event (irAE) associated with immune checkpoint inhibitors (ICIs) resulted from excessive immune response against normal organs. The severity, timing, and organs affected by these events were often unpredictable. Adverse reactions could cause treatment delays or interruptions, in rare cases, pose a life-threatening risk. The mechanisms underlying irAE involved immune cell dysregulation, imbalances in inflammatory factor expression, alterations in autoantibodies and complement activation, even dysbiosis of intestinal microorganisms. However, the mechanisms of irAE occurrence might differ slightly among organs due to variations in their structures and the functions of resident immune cells. Future research should focus on the development of targeted drugs for the prevention or treatment of irAE based on the mechanisms by which irAE occurs in different organs. A deeper understanding of the mechanisms underlying irAE occurrence would aid clinicians in effectively utilizing ICIs and provide valuable guidance for their clinical application.

鼻内镜检查室工作流程再造及效果评价

目的　对鼻内镜检查室流程再造的措施及效果进行总结交流。 方法　2010年10月起，科室成立流程改造小组，剖析原检查流程中存在的不合理、不恰当环节，对检查环境、仪器更新、人员配备、工作模式等方面进行流程的重新设计和改造，并对流程改造后的工作量、就诊秩序、患者满意度与改造前同期指标进行比较。 结果　流程再造后鼻内镜室8个月总检查人数5 187例次，较改造前的3 436例次明显上升；患者之间的纠纷减少，就诊秩序明显改善；患者满意度明显提高。 结论　工作流程再造提高了鼻内镜检查的工作效率和患者满意度，增强了对鼻腔、鼻窦患者的术腔处理能力，更好地满足了患者的需求。

Ultrasonography Features of Primary Thyroid Non-Hodgkin Lymphoma

Objective To investigate ultrasonography features of primary thyroid non-Hodgkin lymphoma (PT-NHL). Methods Ultrasonographic data of patients with PT-NHL(PT-NHL group) and non-Hodgkin lymphoma (control group) who were treated in our hospital from May. 2002 to Jul. 2014 were collected and analyzed. Results Compared with control group, enhancement of posterior echoes was more common in PT-NHL group (P=0.000), and difference values of transverse diameters, anteroposterior diameters, and sagittal diameters of more involved lobe to another lobe were bigger(P < 0.05), but echo pattern of gland, ultrasonographic classification of lesions, classification of vascularity, and condition of cervical lymph nodes were found no statistical difference(P > 0.05). In patients with nodular-type lesions(37 patients in PT-NHL group and 12 patients in control group), length of nodule lesions was larger in PT-NHL group (P=0.000), but there was no statistical difference in shape, boundary, orientation, and echoes of nodules between 2 groups(P > 0.05). In Pulsed-Wave(PW) Doppler between 2 groups(17 patients in PT-NHL group and 4 patients in control group), vascular resistance index(RI) was higher in PT-NHL group than those of control group (P=0.024). Conclusion The enhancement of posterior echoes was a feature in ultrasonography images of PT-NHL. Asymmetrical volume, high value of RI, and big nodule might link to PT-NHL, but diffuse heterogeneous echo with hypoechoic lesions might result in wrong diagnosis as PT-NHL.

糖尿病视网膜病变全视网膜光凝前后的视网膜中央动静脉多普勒超声血流变化

Preliminary study on feasibility of breast masses screening by homemade domestic breast palpation imaging instead of clinical breast palpation examination

ObjectiveTo explore the feasibility of homemade domestic breast palpation imaging (BPI) instead of clinical breast palpation examination (CBE) for screening breast masses. MethodsThe patients who received breast ultrasonography (BUS), BPI examinations and CBE in the Sichuan Cancer Hospital from March 2022 to September 2022 were retrospectively collected. The result of BUS examination was used as the criteria to compare the efficiency and difference between the BPI examination and CBE in detecting breast masses. The effects of the patients’ body mass index, breast volume, tumor location, benign and malignant tumor, and maximum tumor diameter on the accuracy of breast tumor detection by BPI system were further analyzed. ResultsA total of 102 patients were included in this study. Among the 90 patients with breast mass detected by BUS, 76 cases were detected by BPI and 51 cases were detected by CBE. In the 12 patients without tumor mass detected by BUS, only 11 cases patients without tumor mass were detected by BPI and CBE. The sensitivity and accuracy of breast tumor mass screening by the BPI were higher than those by the CBE (84.4% vs. 56.7%, 85.2% vs. 60.7%, respectively), and the specificity was similar (91.6%, both). The area under the receiver operating characteristic curve (95% confidence interval, 95%CI) of BPI and CBE for screening breast masses were 0.903 (0.791, 0.970) and 0.799 (0.747, 0.851), respectively. The former was higher than the latter (Z=2.494, P=0.013). The consistencies were moderate (Kappa=0.518, P<0.001), general (Kappa=0.204, P=0.002), moderate (Kappa=0.518, P<0.001) between the BPI and BUS, between CBE and BUS, and between BPI and CBE for screening breast masses, respectively. The results of multivariate analysis of binary logistics regression indicated that the benign tumor mass was not easily detected [OR (95%CI） was 9.600（1.328, 69.400), P=0.025] and the tumor mass with breast volume ＜350 mL was easily detected [OR (95%CI） was 0.157 (0.030, 0.818), P=0.028], the diameter of tumor mass had no obvious influence on breast tumor mass screening by the BPI. ConclusionAccording to the preliminary results of this study, BPI can improve the sensitivity of detecting breast masses and make up for the lack of objective records of CBE, but BPI cannot replace CBE at present.