1.Exhaled nitric oxide in asthma.
Yu MA ; Chuan-he LIU ; Gary W K WONG
Chinese Journal of Pediatrics 2005;43(6):421-422
2.Limiting the use of primary endocrine therapy in elderly women with breast cancer.
Shaun W Y CHAN ; Patrick M Y CHAN ; Melanie D W SEAH ; Juliana J C CHEN ; Ern Yu TAN
Annals of the Academy of Medicine, Singapore 2014;43(9):469-472
Primary endocrine therapy (PET) is often included as a treatment option in elderly women with operable breast cancer. Elderly women tend to have pre-existing comorbidities and are often reluctant to undergo surgery. The benefit of surgery needs to be weighed against a relatively higher potential for operative morbidity and mortality, and a limited life expectancy. But while PET can provide relatively good locoregional control, it is not curative in nature and the possibility of local complications and metastasis remains. We retrospectively reviewed the outcome of PET in a series of 19 elderly women, older than 70 years of age, who had presented with operable non-metastatic breast cancer. Only about a third of these women were deemed medically unfit for surgery; the rest had declined surgery. Compliance was an issue, with almost half of these patients defaulting treatment and follow-up. Local control was achieved in most patients, but disease progression did occur in 5 patients. Three of these patients received additional treatment; which included surgery in 1 patient. PET should therefore not be considered an equivalent alternative to surgery in elderly women who were fi t to undergo surgery. However, having observed that only 1 of the 6 deaths in our study was related to breast cancer, PET does have a role in women whose life expectancy is more likely to be limited by coexisting morbidities than the breast cancer itself.
Aged
;
Aged, 80 and over
;
Antineoplastic Agents, Hormonal
;
therapeutic use
;
Breast Neoplasms
;
drug therapy
;
Drug Therapy
;
utilization
;
Female
;
Humans
;
Retrospective Studies
;
Tamoxifen
;
therapeutic use
3.Treatment outcome of ductal carcinoma in situ patients treated with postoperative radiation therapy.
Yu Jin LIM ; Kyubo KIM ; Eui Kyu CHIE ; Wonshik HAN ; Dong Young NOH ; Sung W HA
Radiation Oncology Journal 2014;32(1):1-6
PURPOSE: To evaluate the outcome of ductal carcinoma in situ (DCIS) patients who underwent surgery followed by radiation therapy (RT). MATERIALS AND METHODS: We retrospectively reviewed 106 DCIS patients who underwent surgery followed by postoperative RT between 1994 and 2006. Ninety-four patients underwent breast-conserving surgery, and mastectomy was performed in 12 patients due to extensive DCIS. Postoperative RT was delivered to whole breast with 50.4 Gy/28 fx. Tumor bed boost was offered to 7 patients (6.6%). Patients with hormonal receptor-positive tumors were treated with hormonal therapy. RESULTS: The median follow-up duration was 83.4 months (range, 33.4 to 191.5 months) and the median age was 47.8 years. Ten patients (9.4%) had resection margin <1 mm and high-grade and estrogen receptor-negative tumors were observed in 39 (36.8%) and 20 (18.9%) patients, respectively. The 7-year ipsilateral breast tumor recurrence (IBTR)-free survival rate was 95.3%. Resection margin (<1 or > or =1 mm) was the significant prognostic factor for IBTR in univariate and multivariate analyses (p < 0.001 and p = 0.016, respectively). CONCLUSION: Postoperative RT for DCIS can achieve favorable treatment outcome. Resection margin was the important prognostic factor for IBTR in the DCIS patients who underwent postoperative RT.
Breast
;
Breast Neoplasms
;
Carcinoma, Ductal*
;
Carcinoma, Intraductal, Noninfiltrating*
;
Estrogens
;
Follow-Up Studies
;
Humans
;
Mastectomy
;
Mastectomy, Segmental
;
Multivariate Analysis
;
Recurrence
;
Retrospective Studies
;
Survival Rate
;
Treatment Outcome*
4.Disparity of asthma prevalence in Chinese schoolchildren is due to differences in lifestyle factors.
Hong-yu WANG ; Yu-zhi CHEN ; Yu MA ; Gary W K WONG ; Christopher K W LAI ; Nan-Shan ZHONG
Chinese Journal of Pediatrics 2006;44(1):41-45
OBJECTIVETo investigate the environmental lifestyle risk factors which may explain the disparity of asthma prevalence in the Chinese population.
METHODSIn a cross-sectional study, 10 902 schoolchildren were recruited from Hong Kong (n = 3110), Beijing (n = 4277), and Guangzhou (n = 3565) using the ISAAC Phase II protocol. The average age of the children among three cities was 10.1-10.4 years and 50%-53% were male. Each subject was given an ISAAC Phase II questionnaire to be completed by the parents or guardians. Random subgroups of at least 1000 children from each city, added up to 3479 children underwent skin-prick testing. The sensitivity to eight common aeroallergens was assessed. Logistic regression analysis was used to determine the environmental and lifestyle risk factors for asthma and atopy.
RESULTSThe prevalence of wheezing in the past 12 months (Hong Kong, 5.8%; Beijing, 3.8%; Guangzhou, 3.4%) was significantly higher in schoolchildren from Hong Kong than that from the Mainland of China (OR 1.64, 95% CI 1.35-1.99). Multivariate logistic regression analyses revealed that the use of gas cooking (OR 2.08, 95% CI 1.32-3.26), foam pillow (OR 1.94, 95% CI 1.19-3.16), and house dampness (OR 1.84, 95% CI 1.25-2.71) were significant risk factors for "current wheezing". The use of cotton quilt (OR 0.70, 95% CI 0.56-0.87), breast-feeding (OR 0.79, 95% CI 0.66-0.96), and attendance of daycare (OR 0.73, 95% CI 0.59-0.88) were protective factors against "current wheezing". When a summary measure of these variables was introduced into a regression model, the Mainland residency was no longer associated with "current asthma" or "current wheezing" suggesting that either these factors or other unmeasured factors associated with above factors are responsible for the lower prevalence of asthma in the Mainland of China.
CONCLUSIONSeveral environmental and lifestyle factors represented characteristic of life in Mainland of China, including breast feeding, attendance of daycare, use of cotton quilt, use of pillow other than foam pillow, use of cooking fuel other than gas, and the absence of damp spots on the walls or ceiling, were the significant risk factors contributed to the disparity of asthma prevalence in children from Hong Kong and the Mainland of China.
Asthma ; epidemiology ; etiology ; Child ; China ; epidemiology ; Cross-Sectional Studies ; Environmental Exposure ; adverse effects ; Female ; Health Status Disparities ; Hong Kong ; epidemiology ; Humans ; Life Style ; Logistic Models ; Male ; Multivariate Analysis ; Prevalence ; Respiratory Sounds ; Risk Factors ; Skin Tests ; Surveys and Questionnaires
5.Individual allergens as risk factors for asthma and bronchial hyperresponsiveness in Chinese children.
Yu-zhi CHEN ; Yu MA ; Hong-yu WANG ; Hai-jun WANG ; Jing ZHAO ; Ling CAO ; Shuo LI ; G W K WONG ; Nan-shan ZHONG ; T F FOK ; C K W LAI
Chinese Journal of Pediatrics 2003;41(7):538-541
OBJECTIVE This study aimed to determine the relationship between individual allergens with current wheezing and bronchial hyperresponsiveness (BHR) in schoolchildren from three chinese cities: Beijing, Guangzhou and Hong Kong. METHODS Community-based random samples of 10-yr-old schoolchildren from the 3 cities were recruited for study using the International Study of Asthma and Allergies in Childhood (ISAAC) Phase II protocol. The subjects were studied by parental questionnaires (n = 10,902), skin-prick tests (n = 3478), and methacholine challenge tests (n = 608). RESULTS The highest prevalence rates of wheezing in the past 12 months (Beijing, 3.8%; Guangzhou, 3.4%; Hong Kong, 5.8%) and atopy (Beijing, 23.9%; Guangzhou, 30.8%; Hong Kong, 41.2%, defined as having
6.Prevalence and characteristics of overweight and obesity in Chinese children aged 0-5 years.
D M YU ; L H JU ; L Y ZHAO ; H Y FANG ; Z Y YANG ; H J GUO ; W T YU ; F M JIA ; W H ZHAO
Chinese Journal of Epidemiology 2018;39(6):710-714
Objective: To study the prevalence and characteristics of overweight and obesity among Chinese children aged 0-5 years, in 2010-2013. Methods: Data was from the'China Nutrition and Health Surveillance-0-5-Years-Old Children and Lactating Women'project in 2013. Stratified multistage cluster sampling method was used to select 55 districts/counties from 30 provinces (autonomous regions, municipalities) with the sample size of children as 32 862. Definition of overweight and obesity were according to both the WHO 2006 growth standard in children less than 5-year-old and the WHO 2007 growth reference in children of 5-years-old. Results: were calculated by complex weight based on national census from the National Bureau of Statistics in 2010. Results The overall prevalence of overweight was 8.4% among the 0-5-year-old in 2013, with 9.4% in boys and 7.2% in girls. Both of the rates from urban and rural areas were the same, as 8.4%. The prevalence rates of overweight in the 0-, 6-, 12-, 24-, 36-, 48- and 60-71 months age groups appeared as 13.0%, 11.1%, 8.3%, 6.0%, 4.8%, 3.9% and 15.9%, respectively. The rates of overweight in low, medium and high income families were 8.0%, 8.8% and 8.9%, respectively. The prevalence of obesity was 3.1% among the 0-5-year-old, with 3.6% in boys and 2.5% in girls. There was no significant difference seen in urban (3.3%) and rural areas (2.9%). The prevalence rates for obesity in the 0-, 6-, 12-, 24-, 36-, 48- and 60-71 months age groups were 5.8%, 3.8%, 2.5%, 1.6%, 1.2%, 1.3% and 7.8%, respectively. The rates of obesity in low, medium and high income families were 2.8%, 3.3% and 3.5%, respectively. Conclusion: The prevalence rates of both overweight and obesity were increasing among the 0-5-year-olds in China, suggesting that it is necessary to timely conduct the surveillance and intervention programs on overweight and obesity in this target population.
Adolescent
;
Asian People/statistics & numerical data*
;
Body Mass Index
;
Body Weight
;
Child
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Child, Preschool
;
China/epidemiology*
;
Female
;
Humans
;
Income
;
Infant
;
Infant, Newborn
;
Lactation
;
Male
;
Nutritional Status
;
Obesity/ethnology*
;
Overweight/ethnology*
;
Prevalence
8.The Emerging Crisis of Stakeholders in Implant-based Augmentation Mammaplasty in Korea
Jae Hong KIM ; Nam-Sun PAIK ; Sang Yu NAM ; Younghye CHO ; Heung Kyu PARK
Journal of Korean Medical Science 2020;35(15):e103-
Background:
Korea is no longer safe from the risk of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL); the first reported case was a Korean woman in her 40s who had a 7-year-history of receiving an implant-based augmentation mammaplasty using a textured implant. We conducted this study to discuss the emerging crisis of stakeholders in implant-based augmentation mammaplasty and to propose a multi-disciplinary approach to early detection of its complications.
Methods:
We analyzed medical examination data that was collected from patients who visited us between August 12 and September 27, 2019. We evaluated a total of 114 women (n = 114) in the current study. They were evaluated for whether they were in healthy condition. Moreover, their baseline characteristics were also examined; these included age, gender, height (cm), weight (kg), duration since surgery (years), possession of a breast implant card, the site of surgical incision, side of symptoms and reasons for outpatient visit. Furthermore, the patients were also evaluated for their subjective awareness of the manufacturer, surface and shape of the breast implant. Potential complications include malrotation, folding, seroma, capsule thickening, upside-down rotation, rupture, capsule mass and breast mass.
Results:
A majority of the patients had a past history of receiving textured implants. The corresponding percentage was 78.95% (90/114) and 85.09% (97/114) based on their subjective awareness of a breast implant and sonographic findings, respectively. That is, it was slightly increased with the use of a breast ultrasound.
Conclusion
Here, we propose the following approaches. First, patient data should be prospectively collected. By tracking outcomes and complications of an implant-based augmentation mammaplasty, both high-quality care and patient safety can be ensured. Second, stakeholders in implant-based augmentation mammaplasty should collaborate with customers and regulatory authorities. Third, surgeons should consider applying imaging modalities for early detection of postoperative complications.
9.Case-control study on conservative and operative therapy in the treatment of intra-articular fracture of calcaneus.
Yi MA ; Zhong ZHU ; Hui YU ; Guo-fu CHEN ; Hai-xiao CHEN ; Zhong-jun HOU
China Journal of Orthopaedics and Traumatology 2011;24(8):634-637
OBJECTIVETo explore the traumatic mechanism and the effectiveness of conservative and operative therapy for intra-articular fracture of calcaneus.
METHODSForty-eight patients (52 feet) with intra-articular fractures were divided into two groups named as conservative group and operative group. There were 30 patients in the conservative group, including 26 males and 4 females, ranging in age from 2 to 73 years, with an average of (49.2 +/- 8.5) years. The patients in conservative group were treated with manual reduction, external fixation and functional exercise at early time. Among 18 patients in the operative group, 14 patients were male and 4 patients were female, ranging in age from 26 to 66 years,with an average of (50.1 +/- 19.3) years. The patients in the operative group were treated with open reduction and internal fixation. The height and width of calcaneus, Böhler and Gissane angles were measured before and after treatment. The assessment in the function of ankle joints was scored according to AOFAS scoring system.
RESULTSAll the patients were followed up, and the duration ranged from 8 to 18 months,with a mean of 12 months. The time of weight-bearing ranged from 3 to 6 months, averaged 4 months. The fractures were fused completely on average of 12 months. The height and width of calcaneus, Böhler and Gissane angles had no statistically significance between two groups. According to AOFAS criteria,in the conservative group, 18 patients reached an excellent result, 6 good, 5 poor and 1 bad; in operative group, 4 patients reached an excellent result, 7 good, 6 poor and 1 bad. The therapeutic effect of conservative group was better than that of operative group.
CONCLUSIONOperative therapy in intra-articular fracture of calcaneus with steel plate can directly perceive the restoration (or roughly restoration sometimes) of the anatomical shapes of calcaneus, while conservative therapy has advantages such as restoration of the anatomical shapes of calcaneus, early functional practice, early healing, and avoiding operational complications as well.
Adolescent ; Adult ; Aged ; Calcaneus ; injuries ; physiopathology ; surgery ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Intra-Articular Fractures ; physiopathology ; therapy ; Male ; Middle Aged
10.Ceftriaxone-resistant Salmonella spp. in Singapore.
Tse Hsien KOH ; Andre Emmanuel KOH ; Azhar HAMDAN ; Boon Ching KHOO ; Valerie Yang YU ; R T RAYMOND ; Nancy W S TEE
Annals of the Academy of Medicine, Singapore 2008;37(10):900-901
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Anti-Bacterial Agents
;
pharmacology
;
Ceftriaxone
;
pharmacology
;
Child, Preschool
;
Drug Resistance, Microbial
;
Hospitals, Public
;
Humans
;
Infant
;
Microbial Sensitivity Tests
;
Middle Aged
;
Salmonella
;
classification
;
drug effects
;
isolation & purification
;
Salmonella Infections
;
drug therapy
;
microbiology
;
Singapore
;
beta-Lactamases
;
genetics
;
isolation & purification