Objective To investigate the effect of dexamethasone combined with clomiphene on serum sex hormone levels in patients with polycystic ovary syndrome. Methods 80 pregnancies with polycystic ovary syndrome treated in our hospital from January 2013 to December 2015 were selected and they were randomly divided into observation group and control group with 40 cases in each group. The observation group was given dexamethasone combined with clomiphene, while the control group was given simple clomiphene. Compared the curative effect and the change of the levels of progesterone and estradiol before and after treatment for three months. Results After treatment, the total effective rate of the observation group was 95.00%, higher than the total effective rate of the control group was 72.50%, the difference was statistically significant (P<0.05), compared the levels of progesterone(P), estradiol(E2), luteinizing hormone(LH) and LH/FSH in the observation group and the control group, the difference was statistically significant (P<0.05), after treatment, both levels were higher than before treatment. The total ovulation rate of the observation group was 90.00%, higher than the total ovulation rate of the control group was 72.50%, the difference was statistically significant (P<0.05). The level of progesterone and estradiol in serum of polycystic ovary syndrome treated by dexamethasone combined with clomiphene had a obvious positive correlation (r=0.746, 0.812, 0.731 and 0.796, P<0.05). Conclusion Dexamethasone combined with clomiphene treatment of polycystic ovary syndrome than using only clomiphene treatment is good, which can also improve serum hormone levels in patients, effectively improve the patient's endocrine abnormalities.

Objective To explore the clinical efficacy of transcutaneous autologous bone marrow transplantation in the treatment of delayed union after internal fixation of limb fracture. Methods 41 patients with delayed union after internal fixation of limb fracture with informed consent in our hospital were divided into two groups by number table,20 patients in control group were treated with conventional therapy,21 patients in observation group were treated with transcutaneous autologous bone marrow transplantation,the effects and the occurrence of complications of two groups were compared and observed. Results In observation group,excellent healing in 13 cases(61.9%),good in 7 cases(33.3%),failure in 1 case(4.8%),and in the control group,6 patients(30.0%),11 cases(55.0%),3 cases (15.0%),the difference between the two groups was statistically significant(u=4.1934,P＜0.05);the complication rate of the observation group was 9.5%,compared with 15.0% of the control group,there was no significant difference(x2=0.034,P＞0.05). Conclusion Transcutaneous autologous bone marrow transplantation in the treatment of delayed union after internal fixation of limb fracture had better efficacy and less complication.

Objective To investigate the methods and effects of nasolabial flaps for repair of defects after skin tumor removal on midface.Methods From Augest 2012 to March 2015,the different flaps from nasolabial fold were utilized to repair 22 skin defects due to surgical removal of skin tumors on midface.There were 12 flaps with subcutaneous pedicle and 10 flaps with skin pedicle in the group.The size of the defects ranged from0.5cm × 1.0cmto4.0cm × 5.0cm.Results After operation,all flaps survived with primary healing,cosmetic results were satisfactory with conceal scar and no facial organs distortion after 1 month to 2 years following-up.No tumor recurrence occurred.Conclusions Thenasolabial flaps with appropriate pedicles could obtain the satisfactory results for the reconstruction of medium-sized skin defects on midface,especially suitable for middle-aged and elderly patients.

Objective To assess the psychometric properties of the Chinese Heartburn Version of Quality of Life in Reflux and Dyspepsia Questionnaire (QOLRAD) in patients with gastroesophageal reflux disease.Methods 130 patients with symptoms of heartburn completed the Chinese version of QOLRAD,the Short-Form-36 (SF-36).30 of them received proton pump inhibitors (PPI) for 8 weeks,which was used to test responsiveness of the Chinese heartburn version of QOLRAD.Results The Chinese version of QOLRAD had acceptable internal consistency.The overall Cronbach's alpha was 0.89 and the internal consistency of dimensions ranged from 0.70～0.90.Content validity index (CVI) was 0.82.Confirmation factor analysis revealed a 5 factor solutions accounting for 62.02％ and most of items in their dimensions had acceptable loads (＞0.4).There was acceptable concurrent validity with correlations between the Chinese heartburn version of QOLRAD and Short Form-36 health survey ranging from 0.172～0.613.As to responsiveness,after therapy of PPI for 8 weeks,except the dimension of sleep disturbance,scores for dimensions of vitality,food/drink problems,physical/social functioning,emotional distress had significant changes.Conclusions The Chinese version of QOLRAD has a good reliability,validity and responsiveness to therapy,which can be used to assess the quality of life in patients with gastroesophageal reflux disease.

Objective To investigate the correlation between the subjective well-being,optimism and coping mode of patients with inflammatory bowel disease(IBD). Methods A total of 159 IBD patients were surveyed and analyzed by the general information questionnaire, General Well-Being Schedule, Revised The Life Orientation Test, and Simplified Coping Style Questionnaire. Results The subjective well-being scores of IBD patients were (75.04 ± 14.32). And the Pearson analysis showed that subjective well-being scores were positively correlated with optimism scores and positive coping scores(r=0.408, P＜0.01; r=0.429, P＜0.01). Negative coping was negatively correlated with subjective well-being scores(r=-0.174, P＜0.05). Optimism had a direct positive predictive effect on subjective well-being with a path coefficient of 0.22, and coping mode was an intermediary variable of optimism and subjective well-being. Conclusion The subjective well-being of patients with IBD needs to be further improved, which is both related to optimism and coping mode. Coping mode takes effects as a mediator in optimism and subjective well-being.

Background/Aims: It is known that post-reflux swallow-induced peristaltic wave (PSPW) index represents the chemical clearance of the esophagus. However, few studies have explored why some reflux episodes could induce PSPW while others in the same patient could not. The purpose of this study is to investigate the characteristics of reflux episodes which could elicit PSPW. Methods: In this study, 269 reflux episodes were detected, of which 90 with a PSPW and 179 without a PSPW. Comparisons were made between the characteristics of reflux episodes with a PSPW and without a PSPW. The characteristics were including nadir pH, pH drop, proximal extent (cm, sec), ascending velocity (cm/sec), volume clearance time, acid clearance time, percentage acidic (%), 15 to 60-minute acid burden (seconds), and 15- to 60-minute volume burden (seconds). The characteristics between the 2 groups were compared through performing Wilcoxon signed rank test. Results: Reflux episodes followed by a PSPW were significantly associated with a higher proximal extent than those without a PSPW. After the reflux episodes, higher volume clearance time and larger volume burden were more likely to trigger a PSPW. However, there were no significant differences between the 2 groups in nadir pH, pH drop, ascending velocity, acid clearance time, percentage acidic, or acid burden. Conclusions The role of acid seems to be less important in a reflux episode inducing a PSPW. Proximal reflux episodes are more likely to induce a PSPW. The depression of volume clearance may also be an important factor in eliciting a PSPW.

Objective:To explore the value of quantitative parameters of enhanced MRI in predicting the establishment of inferior vena cava collateral circulation in patients with renal cell carcinoma and inferior vena cava tumor thrombus.Methods:Sixty-seven patients with renal cell carcinoma and inferior vena cava tumor thrombus who underwent radical resection and inferior vena cava venography in First Medical Center, PLA General Hospital from May 2006 to January 2021 were included retrospectively. According to the results of inferior vena cava venography, the patients were divided into two groups: the well-established collateral circulation group ( n=41) and the poor-established collateral circulation group ( n=26). Quantitative parameters were measured on preoperative enhanced MRI images, including tumor size, the maximum diameter of bilateral lumbar veins, the length of tumor thrombus, and the long and short diameters of tumor thrombus. Student′s t test or Mann-Whitney U test was used for comparison between the two groups. The independent risk factors related to the establishment of collateral circulation were obtained by binary logistic regression analysis and the model was established. The receiver operating characteristic curve was employed to evaluate MRI quantitative parameters and the logistic model, and the area under the curve (AUC) was compared by the DeLong test. Results:Between the well-established collateral circulation group and the poor-established collateral circulation group, the maximum diameter of the right lumbar vein, the maximum diameter of the left lumbar vein, the length of the tumor thrombus, the long diameter of the tumor thrombus, and the short diameter of the tumor thrombus were different significantly ( P<0.05). There was no significant difference in the tumor size between the two groups ( t=0.30, P=0.766). The AUC of the maximum diameters of the right lumbar veins and left lumbar veins, length of tumor thrombus, long and short diameters of tumor thrombus in predicting the collateral circulation were 0.917 (95%CI 0.824-0.971), 0.869 (95%CI 0.764-0.939), 0.756 (95%CI 0.636-0.853), 0.886 (95%CI 0.785-0.951), and 0.906 (95%CI 0.809-0.963). The AUC of the maximum diameter of the right lumbar vein and the short diameter of the tumor thrombus were larger than those of the length of the tumor thrombus, and the differences were statistically significant ( Z=2.25, 2.04, P=0.025, 0.041), but the AUC between other parameters had no significant difference ( P>0.05). The maximum diameter of the right lumbar vein (OR 24.210, 95%CI 2.845-205.998), the maximum diameter of the left lumbar vein (OR 20.973, 95%CI 2.359-186.490), and the length of the tumor thrombus (OR 23.006, 95%CI 2.952-179.309) were independent risk factors for predicting the establishment of inferior vena cava collateral circulation. The AUC of logistic model was 0.969 (95%CI 0.931-1.000). Conclusion:Quantitative parameters of tumor thrombus and lumbar vein based on enhanced MRI have a good ability in predicting the establishment of inferior vena cava collateral circulation in patients with renal cell carcinoma and inferior vena cava tumor thrombus. The maximum diameter of bilateral lumbar veins and the length of the tumor thrombus were independent risk factors for inferior vena cava collateral circulation.

Objective:To evaluate the test-retest reliability of MRI criteria in the 2019 Bosniak classification of cystic renal masses (CRMs) and to analyze the impact of lesions′ property, size and readers′ experience on the test-retest reliability.Methods:From January 2009 to June 2019, 207 patients with 207 CRMs were included in this retrospective study. All of them underwent renal MRI and surgical-pathologic examination. According to Bosniak classification, version 2019, all CRMs were independently classified twice by eight radiologists with different levels of experience. All radiologists were blinded to the pathology of the lesions. By using intraclass correlation coefficient (ICC), test-retest reliability was evaluated for all CRMs and for subgroups with different pathological properties (benign and malignant) and different sizes (≤40 mm and>40 mm). The test-retest reliability of 4 senior readers (≥10 years of experience) and 4 junior readers (<10 years of experience) were evaluated respectively. The comparison of ICC was performed using Z test. Results:The 207 CRMs included 111 benign lesions (83 benign cysts, 28 benign tumors) and 96 malignant tumors. There were 87 lesions with maximum diameter ≤40 mm and 120 with maximum diameter>40 mm. The test-retest reliability (ICC) of each reader for all lesions was 0.776-0.888, the overall ICC was 0.848 (95%CI 0.821-0.872). The ICCs of senior and junior readers were 0.853 (95%CI 0.824-0.880) and 0.843 (95%CI 0.811-0.871) respectively, without significant difference between the two groups ( Z=0.85, P=0.374). The ICC of all readers was 0.827 for benign lesions and 0.654 for malignant lesions, showing significant difference ( Z=2.80, P=0.005). The ICC was 0.770 for lesions ≤40 mm and 0.876 for lesions>40 mm, which was significantly different ( Z=-2.36, P=0.018). For CRM subgroups with different pathological properties and different sizes, there was no significant difference in test-retest reliability between senior and junior readers (all P>0.05). Conclusion:The test-retest reliability of MRI criteria in the 2019 Bosniak classification of CRMs is excellent and unaffected by readers′ experience. The reliabilities are not consistent among CRMs of different pathological properties and different sizes, but all reached the level of good and above.