To identify diagnostic markers related to oxidative stress in chronic rhinosinusitis with nasal polyps (CRSwNP) by analyzing transcriptome sequencing data, and to investigate their roles in CRSwNP.
Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.目的： 明确新型冠状病毒Omicron株感染后嗅觉和味觉障碍发病率、发病特征、预后以及相关影响因素。 方法： 本研究为中国45家三级甲等医院及1家疾病预防控制中心参与的横断面研究。研究通过线上和线下问卷调查的方式收集2022年12月28日至2023年2月21日共8周时间新型冠状病毒感染患者的资料，包括基本信息、既往健康状况、吸烟饮酒史、疫苗接种史、感染前后的嗅觉和味觉功能、感染后的其他症状以及嗅觉味觉障碍的持续时间和改善情况等。采用视觉模拟量表（VAS）评估患者自报的嗅觉味觉功能。采用χ2检验、Losgistic回归等对数据进行分析。 结果： ①获得35 566份有效调查问卷，新型冠状病毒Omicron株感染后嗅觉味觉障碍的发病率为67.75%（24 096例）；其中女性为47.70%（16 966例），高于男性的20.05%（7 130例），差异有统计学意义（χ2=367.013，P<0.001）；18~40岁年龄组较其他年龄组更容易出现嗅觉味觉障碍（χ2=120.210，P<0.001）。②性别（OR=1.564，95%CI为1.487~1.645）、新型冠状病毒疫苗接种情况（OR=0.601，95%CI为0.517~0.698）、口腔健康状况（OR=0.881，95%CI为0.839~0.926）、吸烟史（OR=1.152，95%CI为1.080~1.229）、饮酒史（OR=0.854，95%CI为0.785~0.928）与新型冠状病毒感染后嗅觉味觉障碍的发生相关（P值均<0.001）。③尚未恢复嗅觉味觉功能的患者中44.62%（4 391/9 840）伴鼻塞、流涕，32.62%（3 210/9 840）伴口干、咽痛。嗅觉味觉功能的改善情况与伴随症状的持续与否有相关性（χ2=10.873，P=0.001）。④新型冠状病毒感染前嗅觉味觉VAS分别为8.41、8.51分，感染后分别降至3.69、4.29分，截至调查时可恢复至5.83、6.55分。嗅觉障碍持续的中位时间为15 d，味觉障碍持续的中位时间为12 d。0.50%（121/24 096）的患者嗅觉味觉障碍持续时间超过28 d。⑤嗅觉、味觉障碍总体的自报改善率为59.16%（14 256/24 096）。性别（OR=0.893，95%CI为0.839~0.951）、新型冠状病毒疫苗接种情况（OR=1.334，95%CI为1.164~1.530）、头面部外伤史（OR=1.180，95%CI为1.036~1.344，P=0.013）、鼻腔健康状况（OR=1.104，95%CI为1.042~1.171，P=0.001）和口腔健康状况（OR=1.162，95%CI为1.096~1.233）、吸烟史（OR=0.765，95%CI为0.709~0.825）、伴随症状持续与否（OR=0.359，95%CI为0.332~0.388）对嗅觉味觉障碍的预后有影响（以上除标注外，P值均<0.001）。 结论： ①女性、有吸烟史的患者感染新型冠状病毒后更易发生嗅觉味觉障碍；②接种4针疫苗、有饮酒史的患者感染新型冠状病毒后更不容易发生嗅觉味觉障碍；③新型冠状病毒感染后嗅觉味觉功能多数在一定程度上自发改善，但短期内未能恢复至原有水平，少数可能长期存在；④男性、接种2针和3针疫苗、无吸烟史、无持续的伴随症状、既往有头面部外伤史以及有鼻腔口腔健康问题的患者更易恢复嗅觉味觉功能。.
Objective: To analyze the effect and prognosis of infant kidney transplantation. Methods: Clinical data of 37 cases of infant kidney transplantation under 3 years old in Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology from June 1, 2017 to July 31, 2022 were retrospectively collected. These 37 cases included 31 primary kidney transplantation and 6 secondary kidney transplantation. Kaplan-Meier method was used to draw the survival curve of the transplanted kidney and the recipient, and the prognosis and complications were analyzed. Median follow-up was 18 months (range: 6-66 months). Results: The recipients were 20 males and 17 females, with a median age of 16 months (range: 2 months, 26 days to 36 months) and a median weight of 8 kg (range: 3.2 to 14.0 kg). The youngest child was only 2 months, 26 days old, and weighed only 3.2 kg. The most common primary disease of recipients was congenital nephrotic syndrome (13 cases, 41.9%). Intra-abdominal transplantation occurred in 19 cases (51.3%) and intra-iliac fossa transplantation occurred in the remaining 18 cases (48.6%). Postoperative renal function recovery was delayed in 7 cases (18.9%), and thrombosis caused renal function loss in 5 cases (13.5%), of which 4 cases received second renal transplantation and were successful. During the follow-up period, there were 11 cases of acute rejection (29.7%) and 6 cases of CMV pneumonia (16.2%). The estimated glomerular filtration rate 1 year after transplantation was higher than that 1 month after surgery [(101.9±22.1) vs (71.1±25.6) ml/(min·1.73m2), P<0.001], and remained constant 2 years after transplantation. Both the 1-year and 2-year survival rates of the transplanted kidney were 85.3%, and both the 1-year and 2-year survival rates of the recipients were 96.8%. Conclusion: Although the implementation of infant kidney transplantation is difficult, it can still achieve relatively satisfactory efficacy and prognosis.目的： 分析婴幼儿肾移植的疗效及预后。 方法： 回顾性收集华中科技大学同济医学院附属同济医院2017年6月1日至2022年7月31日实施的37例次3岁以内婴幼儿受者肾移植临床资料，初次肾移植31例次，二次肾移植6例次。中位随访18个月（6~66个月）。采用Kaplan-Meier法绘制移植肾及受者生存曲线，分析预后及并发症情况。 结果： 受者男20例，女17例，中位年龄16个月（2个月26 d至36个月），中位体重8 kg（3.2~14.0 kg），最小仅2个月26 d，体重仅3.2 kg。受者原发病最多见为先天性肾病综合征（13例，41.9%）。19例次（51.3%）为腹腔内移植，余18例次（48.6%）为髂窝内移植。术后发生移植肾功能恢复延迟7例次（18.9%），血栓形成并导致移植肾失功5例（13.5%），其中4例接受二次肾移植并获得成功。在随访期间内，急性排斥反应11例（29.7%），巨细胞病毒肺炎6例（16.2%）。患儿移植后1年的估算肾小球滤过率高于术后1个月［（101.9±22.1）比（71.1±25.6）ml/（min·1.73m2），P<0.001］，并在术后2年时保持恒定。移植肾1年、2年存活率均为85.3%，移植受者1年、2年存活率均为96.8%。 结论： 尽管婴幼儿肾移植实施难度较大，但还是能够取得相对满意疗效和预后。.
Objective: To analyze the level of chromosome aberration in lymphocytes of medical radiation workers and its influencing factors. Methods: From July to September 2020, 252 medical workers in a tertiary hospital were selected as the study subjects and 107 preserviceworkers were selected as the control group. The Chromosomal aberrations of peripheral blood lymphocytes were measured using conventional cytogenetic analysis method, and the differences were analyzed. Results: The frequencies of dicentric puls centric ring, total chromosome-type aberrations, and abnormal detection rate in the radiation group were significantly higher than those in the control group (Z=2.59, 3.74, 9.99, P<0.05). There was significant difference in the frequencies of dicentric plus centric ring and total chromosome-type aberrations among different types of work (χ(2)=8.59, 8.17, 11.39, P<0.05), and the frequencies of dicentric plus centric ring were significantly higher in the interventional radiology group than those in diagnostic radiology (χ(2)=2.90, P<0.05), While the rates of acentric fragment and total chromosome-type aberrations were significantly higher in the nuclear medicine group than those in diagnostic radiology (χ(2)=2.81, 3.19, P<0.05). The difference in the abnormal detection rate of chromosome aberrations between different types of work was statistically significant (P<0.05), and the rate in the interventional radiology group was significantly higher than that in the diagnostic radiology group (χ(2)=7.66, P<0.05). There was no significant difference in chromosome aberration level and abnormal detection rate among different working ages (P>0.05). Poisson regression analysis indicated that the type of work is a risk factor for chromosomal aberration [IRR=2.31 (nuclear medicine group), 1.66 (Radiation therapy), and 1.78 (interventional group) ; P<0.05]. Conclusion: Ionizing radiation causes certain radiation damage to medical radiology workers, and the frequencies of chromosome aberration in the radiation workers of nuclear medicine and interventional radiology groups are relatively high, so radiation protection should be strengthened to ensure the health of relevant workers.目的： 分析医疗放射工作人员淋巴细胞染色体畸变水平及影响因素。 方法： 于2020年7至9月，选取某三甲医院252名医疗放射工作人员作为放射组并依据工种、工龄分为不同亚组，以同期岗前体检拟从事放射工作的107名健康成年人为对照组，收集研究对照信息，采用常规细胞遗传学方法检测外周血淋巴细胞的染色体畸变，统计分析各组间检测结果。 结果： 放射组"dic+r"率、染色体总畸变率及异常检出率均明显高于对照组（Z=2.59、3.74、9.99，P<0.05）；不同工种间"dic+r"率、ace率及染色体总畸变率的差异有统计学意义（χ(2)=8.59、8.17、11.39，P<0.05），其中介入放射学组的"dic+r"率明显高于放射诊断组（χ(2)=2.90，P<0.05），核医学组的ace率及染色体总畸变率明显高于放射诊断组（χ(2)=2.81、3.19，P<0.05）；不同工种放射工作人员染色体畸变异常检出率差异有统计学意义（P<0.05），其中介入放射学组明显高于放射诊断组（χ(2)=7.66，P<0.05）。不同工龄组间染色体畸变水平及异常检出率的差异均无统计学意义（P>0.05）。Possion回归分析显示，与放射诊断组比较，核医学组、放射治疗组及介入放射学组（IRR=2.31、1.66、1.78，P<0.05）导致染色体畸变风险升高。 结论： 电离辐射对医疗放射工作人员产生一定的辐射损伤，核医学与介入放射学工作人员的染色体畸变水平相对较高，需加强辐射防护以保障相关从业人员的健康。.
Neurofibromatosis type 1 (NF1) is a prevalent autosomal dominant disorder caused by mutations in the NF1 gene, leading to multisystem disorders. Given the critical role of cysteine residues in protein stability and function, we aimed to identify key NF1 mutations affecting cysteine residues that significantly contribute to neurofibromatosis pathology. To identify the most critical mutations in the NF1 gene that contribute to the pathology of neurofibromatosis, we employed a sophisticated computational pipeline specifically designed to detect significant mutations affecting the NF1 gene. Our approach involved an exhaustive search of databases such as the Human Gene Mutation Database (HGMD), UniProt, and ClinVar for information on missense mutations associated with NF1. Our search yielded a total of 204 unique cysteine missense mutations. We then employed in silico prediction tools, including PredictSNP, iStable, and Align GVGD, to assess the impact of these mutations. Among the mutations, C379R, R1000C, and C1016Y stood out due to their deleterious effects on the biophysical properties of the neurofibromin protein, significantly destabilizing its structure. These mutations were subjected to further phenotyping analysis using SNPeffect 4.0, which predicted disturbances in the protein's chaperone binding sites and overall structural stability. Furthermore, to directly visualize the impact of these mutations on protein structure, we utilized AlphaFold3 to simulate both the wild-type and mutant NF1 structures, revealing the significant effects of the R1000C mutation on the protein's conformation. In conclusion, the identification of these mutations can play a pivotal role in advancing the field of precision medicine and aid in the development of effective drugs for associated diseases.
This work studies the expression differences of YKL-40 and TLR4 in nasal sinus mucosa of chronic sinusitis patients with and without nasal polyps and its clinical significances. Fifty chronic sinusitis patients with nasal polyps and 50 chronic sinusitis patients without, accepted by our hospital during February 2016-February 2017, were included and taken as group A and group B, respectively. In addition, another 50 patients with nasal deviation were taken as group C (control group). The ostiomeatal complex mucosa of group A and B and the inferior turbinate mucosa of group C were taken and the fluorescence quantitative PCR method was applied to detect the expression of YKL-40, TLR4 and NF- κB of the mucosa and explore and influence of YKL-40 and TLR4 on NF-κB. There was a negative correlation between YKL-40 and TLR4 in group A, and the difference was statistically significant (P less than 0.05) while there was no relationship between YKL-40 and TLR4 expression in group B. The level of YKL-40 protein in group A was higher than that in group B, which was statistically significant (P less than 0.05). YKL-40 and TLR4 were positively correlated in group A while there was no correlation between YKL- 40 and TLR4 expression in group B. The expression of YKL-40, TLR4 and NF-κB in chronic sinusitis patients with nasal polyps was high. In addition, there was a negative correlation between YKL-40 and TLR4 expression in chronic sinusitis patients with nasal polyps. YKL-40 and TLR4 interacted with each other to activate NF-κB and promote disease progression.
Objective: To examine the feasibility and surgical approach of removing type D trigeminal schwannoma through nasal cavity and nasal sinus under endoscope. Methods: Eleven patients with trigeminal schwannoma who were treated in the Department of Otorhinolaryngology, Qilu Hospital of Shandong University from December 2014 to August 2021 were analyzed retrospectively in this study. There were 7 males and 4 females, aged (47.5±13.5) years (range: 12 to 64 years). The neoplasm involved the pterygopalatine fossa, infratemporal fossa, ethmoidal sinus, sphenoid sinus, cavernous sinus, and middle cranial fossa. The size of tumors were between 1.6 cm×2.0 cm×2.0 cm and 5.7 cm×6.0 cm×6.0 cm. Under general anesthesia, the tumors were resected through the transpterygoid approach in 4 cases, through the prelacrimal recess approach in 4 cases, through the extended prelacrimal recess approach in 2 cases, and through the endoscopic medial maxillectomy approach in 1 case. The nasal endoscopy and imaging examination were conducted to detect whether neoplasm recurred or not, and the main clinical symptoms during follow-up. Results: All the surgical procedures were performed under endonasal endoscope, including Gross total resection in 10 patients. The tumor of a 12-year-old patient was not resected completely due to huge tumor size and limited operation space. One patient was accompanied by two other schwannomas located in the occipital region and the ipsilateral parotid gland region originating from the zygomatic branch of the facial nerve, both of which were removed concurrently. After tumor resection, the dura mater of middle cranial fossa was directly exposed in the nasal sinus in 2 cases, including 1 case accompanied by cerebrospinal fluid leakage which was reconstructed by a free mucosal flap obtained from the middle turbinate, the other case was packed by the autologous fat to protect the dura mater. The operation time was (M(IQR)) 180 (160) minutes (range: 120 to 485 minutes). No complications and deaths were observed. No recurrence was observed in the 10 patients with total tumor resection during a 58 (68) months' (range: 10 to 90 months) follow-up. No obvious change was observed in the facial appearance of all patients during the follow-up. Conclusion: Type D trigeminal schwannoma involving pterygopalatine fossa and infratemporal fossa can be removed safely through purely endoscopic endonasal approach by selecting the appropriate approach according to the size and involvement of the tumor.目的： 探讨单纯内镜下经鼻腔鼻窦入路切除D型三叉神经鞘瘤的可行性和手术入路。 方法： 回顾性分析2014年12月至2021年8月在山东大学齐鲁医院耳鼻咽喉科接受手术治疗的11例D型三叉神经鞘瘤患者的临床资料。男性7例，女性4例，年龄（47.5±13.5）岁（范围：12~64岁）。肿瘤累及翼腭窝、颞下窝、筛窦、蝶窦、海绵窦等结构，部分突入中颅窝，大小为1.6 cm×2.0 cm×2.0 cm~5.7 cm×6.0 cm×6.0 cm。全身麻醉下内镜经鼻切除肿瘤，入路包括翼突入路4例，泪前隐窝入路4例，扩大泪前隐窝入路2例，鼻腔外侧壁入路1例。术后观察肿瘤复发情况和主要临床症状恢复情况。 结果： 所有手术在单纯内镜下经鼻腔鼻窦完成，10例一期全切除，1例因肿瘤巨大，操作空间小，未能实现全切。1例同时切除同侧腮腺区面神经颧支来源及枕部的神经鞘瘤。2例巨大肿瘤切除后中颅底硬脑膜广泛暴露，其中1例并发脑脊液漏，取中鼻甲游离黏膜瓣修补，1例取自体脂肪进行填塞加固。手术时间［M（IQR）］180（160）min（范围：120~485 min），无严重手术并发症及死亡。术后随访58（68）个月（范围：10~90个月），10例全切除患者无肿瘤复发，所有患者面部外形无明显改变。 结论： 单纯内镜下经鼻腔鼻窦，并根据肿瘤大小及累及范围选择合适的入路可较好地切除累及翼腭窝、颞下窝及周围区域的D型三叉神经鞘瘤。.
Objective: To compare the efficacy and safety of a novel customized topography-guided transepithelial corneal collagen cross-linking (TG-CXL) procedure by sequential ultraviolet A irradiation in different diameters and conventional transepithelial corneal collagen cross-linking (TE-CXL) in adult patients with progressive keratoconus. Methods: A prospective cohort study was conducted. Adult patients diagnosed with progressive keratoconus in the Affiliated Xiamen Eye Center of Xiamen University were continuously recruited and randomly assigned to receive the TG-CXL or TE-CXL procedure from March 2020 to March 2021. Patients in the TE-CXL group were irradiated in the central 9-mm zone of the cornea (total energy, 7.2 J/cm2; irradiance, 45 mW/cm2), while patients in the TG-CXL group were first irradiated with the protocol used in the TE-CXL group, and further irradiated in the central 6-mm zone (total energy, 3.6 J/cm2; irradiance, 9 mW/cm2). The subjective symptom of pain and corneal fluorescein sodium staining were scored within postoperative 3 days. Slit lamp examination, measurements of uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), corneal topography, anterior segment optical coherence tomography, in vivo corneal confocal microscopy, corneal endothelial cell count, and non-contact tonometry were performed before surgery and at 3, 6, and 12 months after surgery. Results: A total of 66 patients were enrolled (mean age, 23.0±3.3 years old), with 33 patients (33 eyes) in each group. No statistically significant differences were found in age, gender, and maximum keratometry (Kmax) between the two groups (P>0.05). On day 1 after surgery, the average pain score of the TG-CXL group (2.21±0.45) was significantly higher than that of the TE-CXL group (1.32±0.33) (P<0.05). The pain was rapidly alleviated in both groups on days 2 and 3. On days 1 and 2, the corneal fluorescein sodium staining scores in the TG-CXL group (4.15±0.83 and 2.21±0.60, respectively) were significantly higher than those in the TE-CXL group (1.76±0.56 and 0.85±0.51, respectively, P<0.001), while there was no significant difference between the two groups at day3 (P=0.184). The UCVA and BCVA of the TG-CXL group at 3, 6, and 12 months after surgery were significantly improved when compared with the baseline. At 3, 6, and 12 months, the BCVA (LogMAR) of the TG-CXL group (0.21±0.15, 0.22±0.16, and 0.22±0.16, respectively) were significantly improved when compared with those of the TE-CXL group(0.32±0.15, 0.34±0.15, and 0.36±0.16, respectively, P<0.01). However, there was no significant difference in UCVA between groups at any time point after surgery (P>0.05). The spherical and cylindrical power values of the TG-CXL group were improved when compared with the baseline (P<0.05). However, no significant difference in spherical power values was found between the two groups at any time point after surgery (P>0.05). Meanwhile, there were significant differences in cylindrical power values between the two groups at 6 and 12 months after surgery (P<0.05). The Kmax in the TG-CXL group was improved at all of the time points after surgery when compared with the baseline (P<0.001), while no significant difference in Kmax was found at any time point after surgery in the TE-CXL group when compared with the baseline (P>0.05). At 6 and 12 months after surgery, the Kmax values in the TG-CXL group were significantly lower than the TE-CXL group (P<0.05). No significant differences were found in flat keratomety, steep keratometry, the minimal thickness of the cornea, endothelial cell density, and intraocular pressure between the two groups at any time point after surgery (P>0.05). Within one month after surgery, optical coherence tomography revealed the increased density in the anterior stroma in both groups. In most patients in the TG-CXL group, a demarcation line was visible in the central and para-central corneal stroma, representing a clear and continuous, high-signal arc-shaped linear structure, which was deeper in the central cornea than the para-central cornea. In contrast, a demarcation line, fuzzy and focally discontinuous, was visible only in a few patients in the TE-CXL group, with an almost uniform depth in the central and the para-central cornea. Confocal microscopy demonstrated an apparent mesh-like cross-linked collagen structure in the superficial and intermediate corneal stroma at all time points after surgery in the TG-CXL group, with thickening stromal collagen fibers and an increased number of interconnections. In contrast, the mesh-like structure and number of interconnections in the superficial corneal stroma were significantly reduced at 12 months after surgery in the TE-CXL group, with no cross-linking structure in the intermediate corneal stroma at any time point after surgery. No serious complications such as corneal infection, sterile corneal ulcer, and persistent epithelial defect were observed in both groups during the follow-up of 12 months. Conclusions: The TG-CXL procedure by sequential irradiation in two different diameters with ultraviolet A light was effective and safe in the management of progressive keratoconus in adults, achieving significant refractive improvement. This might be a good technical alternative for refractive corneal cross-linking surgery.目的： 探讨使用两种不同直径紫外光斑序贯照射的基于角膜地形图的个性化跨上皮角膜胶原交联术（TG-CXL）治疗成人完成期进展性圆锥角膜的早期疗效及其安全性，并与常规跨上皮角膜胶原交联术（TE-CXL）相比较。 方法： 前瞻性队列研究。连续募集2020年3月至2021年3月间在厦门大学附属厦门眼科中心确诊为完成期进展期圆锥角膜并拟住院接受角膜胶原交联术治疗的患者，采用随机数字表法将患者随机分入TG-CXL组和TE-CXL组并行相应手术。其中，TE-CXL组以角膜中央为中心点采用直径9 mm紫外光斑照射（总能量7.2 J/cm2，辐照度45 mW/cm2）；TG-CXL组在以TE-CXL组同样参数完成基础照射后，再以圆锥锥顶为中心点加用直径6 mm紫外光斑照射（总能量3.6 J/cm2，辐照度9 mW/cm2）。在术前和术后3、6及12个月时进行症状及角膜荧光素染色评分、裂隙灯检查、裸眼与最佳矫正视力、角膜地形图、前节相干光层析成像术（AS-OCT）、活体角膜共聚焦显微镜及角膜内皮细胞计数等检查。 结果： 共纳入患者66例，两组各33例（33只眼），年龄（23.0±3.3）岁，两组在年龄、性别以及Kmax方面的差异均无统计学意义（P>0.05）。TG-CXL组患者术后第1天时疼痛评分为（2.21±0.45）分，高于TE-CXL组的（1.32±0.33）分（P<0.05），之后两组症状均迅速减轻。术后1和2 d时，TG-CXL组角膜荧光素染色分值（4.15±0.83，2.21±0.60）均高于TE-CXL组（1.76±0.56，0.85±0.51，P<0.001），但术后3 d时两组评分差异无统计学意义（P>0.05）。TG-CXL组术后3、6和12个月时的裸眼视力和最佳矫正视力均较术前改善。TG-CXL组在术后3、6和12个月时最佳矫正视力分别为0.21±0.15、0.22±0.16和0.22±0.16，均优于TE-CXL组（0.32±0.15、0.34±0.15和0.36±0.16），差异均有统计学意义（P<0.05）；但裸眼视力在各时间点的组间差异均无统计学意义（P>0.05）。TG-CXL组的球镜和柱镜度数均较术前改善（P<0.05），但在术后各时间点两组球镜度数之间的差异均无统计学意义（P>0.05），在术后6个月和12个月时两组柱镜度数差异有统计学意义（P<0.05）。TG-CXL组Kmax在术后各时间点均较术前改善（P<0.001），但TE-CXL组术后各时间点与术前相比差异均无统计学意义（P>0.05）；术后6和12个月时，TG-CXL的Kmax分别为（56.12±3.77）和（55.98±3.79）D，TE-CXL组则为（57.59±4.45）和（57.74±4.45）D，两组间差异有统计学意义（P<0.05）。术后各时间点K1、K2、角膜最薄点厚度、内皮细胞密度以及非接触眼压的两组间差异均无统计学意义（P>0.05）。术后1个月内，AS-OCT均可见两组浅层基质密度增高。其中，TG-CXL组绝大部分患者在中央及旁中央角膜浅中层基质可见“分界线”，呈连续的界限清晰的高信号弧形线状结构，中央区分界线较深而中周部较浅；而TE-CXL组仅少部分患者可见分界线，结构模糊且局部不连续，中央区与中周部角膜的分界线深度基本一致。共聚焦显微镜下，TG-CXL组术后所有时间点的角膜浅层和中层基质均存在明显的网格状交联结构，基质细胞纤维直径显著增粗，纤维间连接紧密且数量增加；TE-CXL组在术后12个月时浅层基质的交联结构已较前明显减少，且在中层基质无交联征象。随访期间两组患者均未见角膜感染、角膜溃疡、持续性上皮缺损等严重并发症。 结论： 根据角膜地形图特点进行大小光斑序贯照射的个性化角膜胶原交联术对成人圆锥角膜具有明显的屈光改善效应，且安全性良好。联合应用两种不同直径的紫外光斑进行角膜胶原交联是当前国内开展屈光性交联的良好技术选择。.
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