Objective:To explore the clinical effect of a new method for nipple reduction and shortening in nipple hypertrophy.Methods:A retrospective analysis was made with patients with nipple hypertrophy who were admitted to Shanghai Mylike Medical Cosmetic Hospital from January 2018 to December 2019. The optimal size of the postoperative nipple was determined according to the patient’s requirements at the un-erectile state. Two wedge-shaped tissues resection were designed at the two symmetrical edges of the nipple to determine the diameter of the new nipple, and two dual wing shaped flaps were designed at the top of the nipple to determine the height of the new nipple. After local anesthesia, the redundant skin and subcutaneous tissue were cut off, and the corresponding points were closed and sutured. The appearance of the nipple was observed after operation. The nipple sensation and erectile function were evaluated by touching the nipple with cotton swab.Results:A total of 22 patients with nipple hypertrophy, aged from 24 to 35 years old, were female patients after childbirth and lactation. No wound nonunion or infection occurred. The blood supply and sensation of the nipple were good, and the shape of the nipple was significantly improved. All patients were followed up for 3-9 months, and the nipple sensation and erectile function recovered completely. All patients were satisfied with the postoperative result.Conclusions:The reduction of nipple by wedge tissue resection and wing flap can correct both the diameter and height of the nipple, while the nipple sensation and erection function are not affected. The procedure is easily performed with satisfactory result.

Objective:To explore the clinical effect of a new method for nipple reduction and shortening in nipple hypertrophy.Methods:A retrospective analysis was made with patients with nipple hypertrophy who were admitted to Shanghai Mylike Medical Cosmetic Hospital from January 2018 to December 2019. The optimal size of the postoperative nipple was determined according to the patient’s requirements at the un-erectile state. Two wedge-shaped tissues resection were designed at the two symmetrical edges of the nipple to determine the diameter of the new nipple, and two dual wing shaped flaps were designed at the top of the nipple to determine the height of the new nipple. After local anesthesia, the redundant skin and subcutaneous tissue were cut off, and the corresponding points were closed and sutured. The appearance of the nipple was observed after operation. The nipple sensation and erectile function were evaluated by touching the nipple with cotton swab.Results:A total of 22 patients with nipple hypertrophy, aged from 24 to 35 years old, were female patients after childbirth and lactation. No wound nonunion or infection occurred. The blood supply and sensation of the nipple were good, and the shape of the nipple was significantly improved. All patients were followed up for 3-9 months, and the nipple sensation and erectile function recovered completely. All patients were satisfied with the postoperative result.Conclusions:The reduction of nipple by wedge tissue resection and wing flap can correct both the diameter and height of the nipple, while the nipple sensation and erection function are not affected. The procedure is easily performed with satisfactory result.

Objective:Analysis of clustering characteristics of coronavirus disease 2019 (COVID-19) in Guangdong Province.Methods:The COVID-19 cases in Guangdong Province onset from January 1 to February 29, 2020 were collected from Chinese information system for disease control and prevention and Emergency Public Reporting System. Obtain the epidemiological survey data of the cluster epidemic situation, and clarify the scale of cluster epidemic situation, the characteristics of the index cases, family and non-family subsequent cases. Calculate serial interval according to the onset time of the index cases and subsequent cases, secondary attack rate based on the close contacts tracking results, the characteristics of different cases in the clustered epidemic were compared.Results:A total of 283 cluster were collected, including 633 index cases, 239 subsequent cases. Families are mainly clustered, the total number involved in each cluster is in the range of 2-27, M( P25, P75) are 2.0 (2.0, 4.0). During January 15 to February 29, the secondary attack rate is 2.86% (239/8 363) in Guangdong Province, the family secondary attack rate was 4.84% (276/3 697), and the non-family secondary attack rate was 1.32% (61/4 632). According to the reporting trend of the number of cases in Guangdong Province, it can be divided into four stages, the rising stage, the high platform stage, the descending stage and the low level fluctuation period. The secondary attack rate of the four stages were 3.5% (140/3 987), 2.3% (55/2 399), 2.6% (37/1 435), 1.3% (7/542), respectively. The difference was statistically significant ( P=0.003). Conclusion:COVID-19 cluster mainly occurs in families in Guangdong Province. The scale of the clustered epidemic was small; the serial interval was short; and the overall secondary attack rate was low.

Objective:Analysis of clustering characteristics of coronavirus disease 2019 (COVID-19) in Guangdong Province.Methods:The COVID-19 cases in Guangdong Province onset from January 1 to February 29, 2020 were collected from Chinese information system for disease control and prevention and Emergency Public Reporting System. Obtain the epidemiological survey data of the cluster epidemic situation, and clarify the scale of cluster epidemic situation, the characteristics of the index cases, family and non-family subsequent cases. Calculate serial interval according to the onset time of the index cases and subsequent cases, secondary attack rate based on the close contacts tracking results, the characteristics of different cases in the clustered epidemic were compared.Results:A total of 283 cluster were collected, including 633 index cases, 239 subsequent cases. Families are mainly clustered, the total number involved in each cluster is in the range of 2-27, M( P25, P75) are 2.0 (2.0, 4.0). During January 15 to February 29, the secondary attack rate is 2.86% (239/8 363) in Guangdong Province, the family secondary attack rate was 4.84% (276/3 697), and the non-family secondary attack rate was 1.32% (61/4 632). According to the reporting trend of the number of cases in Guangdong Province, it can be divided into four stages, the rising stage, the high platform stage, the descending stage and the low level fluctuation period. The secondary attack rate of the four stages were 3.5% (140/3 987), 2.3% (55/2 399), 2.6% (37/1 435), 1.3% (7/542), respectively. The difference was statistically significant ( P=0.003). Conclusion:COVID-19 cluster mainly occurs in families in Guangdong Province. The scale of the clustered epidemic was small; the serial interval was short; and the overall secondary attack rate was low.

Objective: To explore the prognosis and risk factors of pyelectasis in high-risk infants. Methods: This was a retrospective study. Totally 960 high-risk infants, who accepted type B ultrasonic examination for fetus at 28th week of gestation and for newborns in 48 hours after birth, were included in the study in departments of obstetrics and eonatology, Shunyi Maternal and Children's Hospital of Beijing Children's Hospital during May 2012 to April 2013. The degree of pyelectasis was classified using Grignon grade and the paients were followed up for 3 years. The factors of epidemiology, high risk pregnant women, fetus and high-risk newborns that relate to pyelectasis were summarized. High-risk factors were analyzed by using logistic multivariate regression analysis. Results: Of 960 high-risk infants, 103 had abnormal urinary ultrasound results, 87 (9.1% of high-risk infants) were diagnosed with pyelectasis, 16 (1.7% of high-risk infants) were diagnosed with congenital anomalies of the kidney and urinary tract. According to the degree of pyelectasis, 68 infants were Grignon grade Ⅰ, male:female ratio=5.8∶1, left side:right side ratio=1.91∶1; 19 infants were Grignon grade Ⅱ, male:female ratio=5.33∶1, left side:right side ratio=2.12∶1. Postnatal follow-up results showed that pyelectasis disappeared in 48 cases (55% of pyelectasis cae), 40 infants were Grignon grade Ⅰ (59% of all Grignon grade Ⅰ patients), 8 infants were Grignon grade Ⅱ (42% of all Grignon grade Ⅱ patients); The result of risk factors analysis showed that the risk of pyelectasis in males was 4.368 times that of females (95%CI: 2.33-8.189, P<0.05); the risk of pyelectasis in low birth weight infants was 22.434 times that of non low birth weight infants (95% CI: 5.883-85.547, P<0.05). Conclusion The incidence of pyelectasis in high-risk infants was 9.1%. The mitigation rate of pyelectasis in Grignon grade Ⅰ to Ⅱ in fetal or newborn period is high. Patients in Grignon grade Ⅲ and above in fetal or new born period had high risk of congenital anomalies of the kidney and urinary tract. The risk of pyelectasis of male was higher than that of female; the risk of pyelectasis of low birth weight infant was higher than appropriate for gestational age infants.

Objective To investigate the levels of antibody to pertussis toxin (PT) IgG in newborns in Shunyi Women and Children's Hospital of Beijing Children's Hospital in 2016.Methods A total of 419 newborns were enrolled in this study.Umbilical cord blood sample was collected from each subject and detected by enzyme-linked immunosorbent assay to measure the concentration of PT-IgG.Besides,all newborns were followed up to January 31,2017.Chi-square test was used for statistical analysis.Results The detectable rate of umbilical cord blood samples for PT-IgG accounted for 30.1％ (126/419).The median antibody level was ＜ 5 U/ml,and the 90th and the 95th percentile were 14.3 and 24.0 U/ml,respectively.No cases of pertussis occurred at the end of follow-up.Conclusions The newborns born in Shunyi Women and Children's Hospital of Beijing Children's Hospital are generally lack of protective PT antibody.

Objective To investigate the predictive value of the whole nodule size and solid component size of lung adenocarcinoma manifesting as subsolid nodule(SSN) in three different dimensions for pathologic grade.Methods We evaluated retrospectively preoperative chest HRCT data of 125 patients with 127 SSNs surgically resected and pathologically conformed lung adenocarcinomas.All specimens were divided into two groups: a total of 69 SSNs in group A, including 22 AIS and 47 MIA;a total of 58 SSNs in group B, only including IAC.Computer aided diagnosis software were used to measure the one dimension maximum diameter of solid component with lung window setting(1D-SCLW),two dimension maximum diameter of solid component with lung window setting(2D-SCLW),one dimension maximum diameter of solid component with mediastinal window setting(1D-SCMW),two dimension maximum diameter of solid component with mediastinal window setting(2D-SCMW),one dimension maximum diameter of whole nodule with lung window setting (1D-WNLW), two dimension maximum diameter of whole nodule with lung window setting (2D-WNLW), and volume of solid component with threshold of-300 HU (SCT) of all SSNs.Results 1D-SCLW, 2D-SCLW,1D-SCMW,2D-SCMW,1D-WNLW,2D-WNLW and SCT of the group B were significantly larger than those of the group A(P=0.000).ROC analyses indicated that the diagnostic efficiency of SCT for the pathologic grade was the highest among 7 CT features(AUC=0.887, sensitivity:81%,specificity:93%);The cut-off values of 1D-SCLW,2D-SCLW,1D-SCMW,2D-SCMW,1D-WNLW, 2D-WNLW and SCT were 17.50 mm,14.75 mm,9.50 mm,7.75 mm,0.50 mm,1.25 mm and 139.00 mm3.Multiple Logistic regression analysis revealed that SCT was the independent predictor of pathologic grade(OR=4.978,95%CI=1.430-17.331,P=0.012).SCT of 139.00 mm3 or greater was a significant indicator of IAC.Conclusion Among the whole nodule size and solid component size of SSN in three different dimensions on preoperative HRCT, SCT is found to be the independent predictor of pathologic grade, which may provide reference for surgery.

Objective To investigate the expression and clinical significance of matrix met-alloproteinases-9 (MMP-9)in tissues of endometrial carcinoma.Methods The paraffin samples of tissues in 30 patients with endometrial carcinoma admitted in our hospital from February 2009 to March 2012 were selected as experimental group 1 while those in other 40 patients with atypical en-dometrial hyperplasia and 40 healthy people as experimental group 2 and control group,respective-ly.Immunohistochemical staining method was used for the MMP-9 staining so as to analyze the counts of cells with positive staining and the staining severity.MMP-9 expression levels were com-pared,the relationship between MMP-9 expression and clinical pathological parameters in endome-trial carcinoma tissues were analyzed and Cox ratio risk model was applied to analyze the prognostic factors of endometrial carcinoma.Results Experimental group 1 was evidently lower in low-expres-sion of MMP-9 than experimental group 2 and apparently higher in high-expression of MMP-9 than the other groups (P <0.05).It was showed that pathological staging and lumph node metastasis were closely associated with MMP-9 protein expression (P <0.05),which were also the risk fac-tors impacting the prognosis of endometrial carcinoma (P <0.05).Conclusion The specific high-expression of MMP-9 in endometrial carcinoma can be considered as one of the referent indexes for diagnosing endometrial carcinoma and its pathological staging,which,however,is not the indepen-dent risk factor influencing the prognosis of endometrial carcinoma.

Objective To investigate the expression and clinical significance of matrix met-alloproteinases-9 (MMP-9)in tissues of endometrial carcinoma.Methods The paraffin samples of tissues in 30 patients with endometrial carcinoma admitted in our hospital from February 2009 to March 2012 were selected as experimental group 1 while those in other 40 patients with atypical en-dometrial hyperplasia and 40 healthy people as experimental group 2 and control group,respective-ly.Immunohistochemical staining method was used for the MMP-9 staining so as to analyze the counts of cells with positive staining and the staining severity.MMP-9 expression levels were com-pared,the relationship between MMP-9 expression and clinical pathological parameters in endome-trial carcinoma tissues were analyzed and Cox ratio risk model was applied to analyze the prognostic factors of endometrial carcinoma.Results Experimental group 1 was evidently lower in low-expres-sion of MMP-9 than experimental group 2 and apparently higher in high-expression of MMP-9 than the other groups (P <0.05).It was showed that pathological staging and lumph node metastasis were closely associated with MMP-9 protein expression (P <0.05),which were also the risk fac-tors impacting the prognosis of endometrial carcinoma (P <0.05).Conclusion The specific high-expression of MMP-9 in endometrial carcinoma can be considered as one of the referent indexes for diagnosing endometrial carcinoma and its pathological staging,which,however,is not the indepen-dent risk factor influencing the prognosis of endometrial carcinoma.

Objective To compare the efficacy and complications of the two surgical methods (between type Ⅰ hysterectomy and type Ⅱ hysterectomy),and to explore the feasibility of type Ⅰ hysterectomy in stage ⅠA cervical cancer.Methods The study group,92 cases(48 cases of stage ⅠA1,44 cases of stage ⅠA2) were performed with type Ⅰ hysterectomy plus selective pelvic lymph node dissection;the control group,93 cases (49 cases of stage ⅠA1,44 cases of ⅠA2) were performed with type Ⅱ hysterectomy plus selective pelvic lymph node dissection.Results The survival rate of 5 years and 10 years in study group were 100 ％ (92/92),100 ％ (74/74) and that in control group were 100 ％ (93/93),100 ％(66/66),respectively.There were no signicant difference between the two group (both P ＞ 0.05).When compared with the control group,the urinary tract infection of the study group was significantly reduced (0 versus 13.99 ％,P ＜ 0.05).Moreover,there were a shorter surgical duration [(96.14±17.20) min vs (116.82±16.30) min].The hemorrhage [(117.35±39.61) ml] and blood transfusion (0 ml) in study group was less common than those in control group [(201.74±46.25) ml,(82.07±16.32) ml] (all P ＜ 0.01).Conclusion There are no difference of 5-year and l0-year survival rate in stage ⅠA patients with type Ⅰ or type Ⅱ hysterectomy,however,the rate of the postoperative urinary tract infection in the former is lower than that in the latter,and also there are a shorter surgical duration,less hemorrhage and reduced blood transfusion requirements in study group.Therefore,type Ⅰ hysterectomy can be effective and applicable for the patients of stage ⅠA cervical cancer.