Objective:To observe the changes in the anterior chamber before and after cataract surgery by ultrasound biomicroscopy (UBM) in eyes with primary angle closure glaucoma. Methods: Ultrasound biomicroscopy was used for anterior chamber imaging in 78 eyes of 50 patients with primary angle closure glaucoma before and 1 month after cataract phacoemulsification and intraocular lens implantation. And the intraocular pressures were recorded at the same time. Results: UBM allowed the imaging of the entire anterior eye segment. In the images, the differences between iris thickness (IT), iris zonule distance (IZD) and iris lens angle (?2) before and after the operation were statistically insignificant. After the operation, marked increases were observed in the anterior chamber depth (ACD), angle opening distance at 500 ?m from the scleral spur (AOD500), trabecular iris angle (?1) and trabecular ciliary process distance (TCPD), with statistically very significant differences from preoperation (P

Objective:To explore the advantage of thyroid biopsy and evaluate detection in the application of thyroid cancer cervical lymph node dissection operation guidance, and provide evidence-based basis for guiding PTC patients whether to receive lateral dissection.Methods:The data of 258 patients with thyroid papillary carcinoma admitted to Department of Thyroid Surgery, Affiliated Hospital of Chengde Medical College from April 2018 to December 2019 were retrospectively analyzed. All patients were admitted to the hospital for ultrasonic examination of cervical lymph nodes. According to the examination results, thyroid biopsy and puncture eluent were performed for patients with suspicious signs of metastasis. Patients with positive test results and with metastatic signs in initial ultrasonic examination received lymph node dissection in the cervical region. All patients underwent pathological examination postoperatively to diagnose the lymph node metastasis, and to evaluate the sensitivity, specificity and accuracy of the detection of the patients with lateral clearance.The measurement data was expressed as mean±standard deviation ( Mean± SD), and the count data was expressed as n(%). The software of SPSS21.0 was used to conduct statistical analysis. Results:All 258 patients were successfully completed the diagnosis of various diagnostic methods. Combined with the postoperative pathological diagnosis results, the accuracy rate of ultrasonic diagnosis of lymph node metastasis was 74.42%, the accuracy rate of FNAC diagnosis was 82.95%, the accuracy rate of FNAC-Tg diagnosis was 87.98%, and the accuracy rate of FNAC-Tg diagnosis was 94.96%. The diagnostic sensitivity of ultrasound, FNAC, FNAC-Tg and FNAC-Tg was 73.60%, 81.72%, 91.01% and 95.83%, respectively, and the diagnostic specificity was 76.25%, 86.11%, 79.71% and 88.41%, respectively. In every four months for a time span since April 2018, the average length of hospital stay for patients with each span was (9.17±1.30), (8.39±1.21), (7.94±1.03), (7.46±0.94), (7.33±0.82) d, their neck area incidence of lymph node metastasis were 17.6%, 21.3%, 15.7%, 12.9%, 11.8%, side clear surgical patients accounted for 42.3%, 37.5%, 30.9%, 26.6%, 19.4%. The incidence of lymph node metastasis was 86.8%, 79.4%, 84.5%, 93.2% and 98.1%, respectively.Conclusion:FNAC-Tg method is used in the diagnosis of thyroid papillary carcinoma patients with high sensitivity and specificity of lymph node metastasis, which has certain value in guiding patients whether to perform lymph node dissection.

Objective To investigate the value of depth of invasion(DOI)and pattern of inva-sion(POI)in predicting recurrence and evaluating prognosis of early oral squamous cell carcinoma(OSCC).Methods Data of 109 patients with primary OSCC were retrospectively collected.The chi-square test was used to compare categorical variables of clinical data.Univariate and multivariate Logistic regression analyses were used to analyze the correlation between clinical data and tumor re-currence.Cox regression analysis was used to analyze the correlation between clinical data and overall survival of patients.Results Univariate analysis showed that POI,DOI and pathological grade were correlated with recurrence and poor prognosis of early OSCC.Multivariate Logistic regression analysis indicated that DOI was an influencing factor for OSCC recurrence(OR=4.515,95％CI,1.283 to 15.894,P＜0.05)and prognosis(HR=2.993,95％CI,1.225 to 7.317,P＜0.05).There was a high correlation between POI and DOI of OSCC.Conclusion DOI ≥5 mm is considered as a rele-vant factor for recurrence and poor prognosis of early OSCC.

Objective To investigate the value of depth of invasion(DOI)and pattern of inva-sion(POI)in predicting recurrence and evaluating prognosis of early oral squamous cell carcinoma(OSCC).Methods Data of 109 patients with primary OSCC were retrospectively collected.The chi-square test was used to compare categorical variables of clinical data.Univariate and multivariate Logistic regression analyses were used to analyze the correlation between clinical data and tumor re-currence.Cox regression analysis was used to analyze the correlation between clinical data and overall survival of patients.Results Univariate analysis showed that POI,DOI and pathological grade were correlated with recurrence and poor prognosis of early OSCC.Multivariate Logistic regression analysis indicated that DOI was an influencing factor for OSCC recurrence(OR=4.515,95％CI,1.283 to 15.894,P＜0.05)and prognosis(HR=2.993,95％CI,1.225 to 7.317,P＜0.05).There was a high correlation between POI and DOI of OSCC.Conclusion DOI ≥5 mm is considered as a rele-vant factor for recurrence and poor prognosis of early OSCC.

Calcium phosphate cement (CPC) is well known for the excellent bioactivity and biocompatibility, however, CPC has been used only for the repair of non-load bearing bone defects due to its brittle nature and low flexural strength. Polymer reinforced CPC has been considered as one of the most effective strategies for mechanical reinforcement. This paper summarizes various kinds of polymers loaded CPC:fiber reinforcement, microsphere reinforcement and dual setting cements. It is aimed to analyze the advantages, disadvantages and principles of the polymers reinforced CPC, and so as to lay a foundation for the further research of improving and manufacturing the CPC with ideal mechanical properties.
Biocompatible Materials ; Bone Cements ; Calcium Phosphates ; Materials Testing ; Polymers