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1.
Journal of Korean Medical Science ; : e300-2023.
Article in English | WPRIM | ID: wpr-1001245

ABSTRACT

Background@#The purpose of this study was to evaluate the effect of vanishing twin (VT) on maternal serum marker concentrations and nuchal translucency (NT). @*Methods@#This is a secondary analysis of a multicenter prospective cohort study in 12 institutions. Serum concentrations of pregnancy-associated plasma protein-A in the first trimester and alpha-fetoprotein (AFP), total human chorionic gonadotrophin, unconjugated estriol, and inhibin A in the second trimester were measured, and NT was measured between 10 and 14 weeks of gestation. @*Results@#Among 6,793 pregnant women, 5,381 women were measured for serum markers in the first or second trimester, including 65 cases in the VT group and 5,316 cases in the normal singleton group. The cases in the VT group had a higher median multiple of the median value of AFP and inhibin A than the normal singleton group. The values of other serum markers and NT were not different between the two groups. After the permutation test with adjustment,AFP and inhibin A remained significant differences. The frequency of abnormally increased AFP was also higher in the VT group than in the normal singleton group. @*Conclusion@#VT can be considered as an adjustment factor for risk assessment in the secondtrimester serum screening test.

2.
Yonsei Medical Journal ; : 735-743, 2022.
Article in English | WPRIM | ID: wpr-939379

ABSTRACT

Purpose@#We assessed prenatal detection rates of congenital heart disease (CHD) and associations between maternal serum biomarkers and non-chromosomal CHD in singleton pregnancies. @*Materials and Methods@#This study was conducted as a secondary analysis of data obtained during a multicenter prospective cohort study that investigated the cost-effectiveness of prenatal testing for fetal aneuploidy. We analyzed the prenatal detection rate and accuracy for CHD screening via ultrasound during the second trimester, as well as associations between serum biomarkers and CHDs, in singleton newborns without chromosomal abnormalities. @*Results@#Among 6715 women, 142 (2.1%) newborns were born with CHDs, of which 67 (1.0%) newborns had major CHDs. The prenatal detection rate for all CHDs and major CHDs were 34.5% and 58.2%, respectively. After excluding isolated ventricular septal defects, the detection rate for critical CHDs was 85.9%. Women with low pregnancy-associated plasma protein A (PAPP-A) (<0.4 multiples of the median, MOM) face increased risks of non-chromosomal CHDs [adjusted odds ratio (aOR) 2.76; 95% confidence interval (CI) 1.36–5.13] and major CHDs (aOR 7.30; 95% CI 3.18–15.59), compared to those without CHDs. A higher inhibin A level (≥2.5 MOM; aOR 4.84; 95% CI 1.42–12.46) was associated with non-chromosomal major CHDs. @*Conclusion@#Ultrasonography performed during the second trimester by obstetricians detected over 85% of critical CHDs. Low maternal serum PAPP-A or high inhibin-A was associated with non-chromosomal CHDs. These results may contribute to an improvement in prenatal diagnosis of CHDs.

3.
Obstetrics & Gynecology Science ; : 145-155, 2022.
Article in English | WPRIM | ID: wpr-938912

ABSTRACT

Objective@#To evaluate the clinical significance of soft markers for aneuploidy screening in Korean women. @*Methods@#We retrospectively reviewed the medical records of 5,428 singleton pregnant women who underwent sonography during the second trimester at seven institutions in South Korea. We evaluated the prevalence of the following soft markers: intracardiac echogenic focus, choroid plexus cysts, pyelectasis, echogenic bowel, and mild ventriculomegaly. We developed best-fitted regression equations for the fetal femur and humerus length using our data and defined a short femur and humerus as both long bones below the fifth centile. The results of genetic testing and postnatal outcomes were investigated in patients who had been diagnosed with aforementioned soft markers. @*Results@#The median maternal age of our study population was 33 years, and the median gestational age at the time of ultrasonographic examination was 21 weeks. We detected soft markers in 10.0% (n=540) of fetuses: 9.3% (n=504) were isolated cases and 0.7% (n=36) of cases had two or more markers. We identified only two aneuploides (trisomy 18, 46,XX,t[8;10][q22.1;p13]), of which one was clinically significant. We presented the neonatal outcomes of the fetuses with the respective soft markers. Preterm delivery, low birth weight, and small-for-gestational-age (SGA) were significantly more common in women with a shortened fetal femur (P<0.001, all). However, the presence of a shortened fetal humerus was not associated with those outcomes excluding SGA. @*Conclusion@#Soft markers in second-trimester ultrasonography have limited use in screening for fetal aneuploidy in Korean women. However, these markers can be used as a screening tool for adverse outcomes other than chromosomal abnormality.

4.
Journal of the Korean Society of Maternal and Child Health ; : 45-51, 2022.
Article in Korean | WPRIM | ID: wpr-926411

ABSTRACT

Uterine myomas are the most common benign tumors in reproductive aged women. There have been concerns about fertility and obstetric complications in pregnant women with myomas. Currently, maternal age for pregnancy is increasing, and uterine-preserving therapeutic procedures of uterine fibroids such as myomectomy, high-intensity focused ultrasound (HIFU), or uterine artery embolization (UAE) have increased. However, it is unclear whether those treatments can improve fertility and pregnancy outcomes. Recent data suggest that pregnancies after uterus-preserving procedures are associated with obstetric complications such as cesarean section, placenta previa, preterm labor, premature birth, and low birth weight. The biggest obstetric concern in pregnancies after uterine-preserving procedures is uterine rupture during pregnancy, which can threaten the survival of fetuses. Moreover, uterine rupture after myomectomy is more likely to occur before labor onset. Most international guidelines suggest that myomectomy be considered for a woman with uterine myomas who has undergone several unsuccessful in vitro fertilization cycles despite appropriate ovarian response and good-quality embryos or for a woman with symptomatic myomas. In addition, HIFU or UAE treatments are relative contraindications in women with a future pregnancy plan, because there are limited data about associated pregnancy outcomes, and UAE can affect fertility after the procedure. The risks of uterine rupture and of obstetric complications in pregnancies after myomectomy should be discussed in affected women with a future pregnancy plan.

5.
Journal of Korean Academy of Nursing ; : 52-65, 2022.
Article in English | WPRIM | ID: wpr-925295

ABSTRACT

Purpose@#This study was conducted to develop a scale to measure spiritual distress in cancer patients. @*Methods@#A total of 69 preliminary items for the spiritaul distress assessment tool (SDAT) were compiled, based on a literature review, selection of empirically relevant items through concept analysis of hybrid models, confirmation of content validity by experts, cognitive interviews, and a pretest. Self-administered questionnaires were collected between April 1 and July 31, 2018, from 225 cancer patients at four medical institutions and one nursing home. The data were analyzed using item analysis, exploratory factor analysis, convergent and discriminant validity, and Pearson correlation for criterion validity. Reliability was tested by Cronbash’s α coefficient. @*Results@#The final version of the SDAT consisted of 20 items. Five-factors, loss of peace, burden of family, avoidance of confronting death, guilt and remorse, regret for not being able to apololgize and forgive were extracted, and showed 62.8% of total variance. The factors were confirmed through convergent and discriminant validity. Criterion validity was confirmed by functional assessment chronic illness therapy spiritual well-being scale 12 (FACIT-Sp12). The overall Cronbach’s α was .91, and the coefficients of each subscale ranged from .78~.83. @*Conclusion@#The SDAT for cancer patients is valid and reliable. It is suggested that the tool can be used to measure spiritual distress in cancer patients.

6.
Journal of Korean Academy of Fundamental Nursing ; : 67-82, 2021.
Article in Korean | WPRIM | ID: wpr-919775

ABSTRACT

Purpose@#This study was done clarify the concept of illness acceptance in patients with chronic disease. @*Methods@#This study was conducted using a hybrid model of concept analysis that consists of three phases. In the theoretical phase, a working definition was formulated through a systematic review. In the fieldwork phase, five participants who had diabetes or hypertension for at least one year were interviewed. In the third phase, the results were combined in the final analysis. @*Results@#There are three phases of accepting an illness: experiencing the limits, disease management, and designing new life. At the experience of the limits and disease management stages, the attributes of physical, psychological and social domains were derived, but at the stage of designing their new life, integrated attributes of these three domains were derived. @*Conclusion@#Illness acceptance of chronic disease was defined as a continuous and dynamic process in three phases. First, patients experience limitations due to the disease, such as physical illness, psychological instability, and difficulty performing social roles. Second, patients manage the disease by engaging in self-management, psychological coping strategies, and establishing social support. Third, patients design their new life by seeking better health-related quality of life and integrating the illness into their everyday life. However, patients experienced negative changes when disease management was not performed properly. The fact that illness acceptance could be cyclic means the difference between illness and loss/death acceptance. Nurse should develop and provide an integrated nursing intervention that is appropriate for phases of illness acceptance.

7.
Journal of Korean Academy of Fundamental Nursing ; : 133-148, 2021.
Article in Korean | WPRIM | ID: wpr-919770

ABSTRACT

Purpose@#The purpose of this study was to evaluate the measurement properties of spirituality-related assessment tools published in Korean journals. @*Methods@#The databases used to search the literature reporting use of the spirituality-related assessment tools were RISS, NDSL, DBpia, KoreaMed, and KISS. The quality of the measurement properties was evaluated based on the reported internal consistency, content validity, criterion validity, construct validity, reproducibility, responsiveness, floor-ceiling effects and interpretability based on the tools review criteria suggested by Terwee et al. @*Results@#Twenty-five assessment tools (including 7 original Korean versions) were identified from the 208 Korean studies published up to November, 2016. All of the 25 tools reported internal consistency and content validity; construct validity was reported in 21 tools while only six tools had reported on criterion validity. None of the studies reported on the reproducibility, responsiveness, and floor-ceiling effects. Among 25 spirituality-related assessment tools, the spiritual well-being scale was identified as the most commonly used tool for spirituality assessment. @*Conclusion@#Among 25 spirituality-related assessment tools used in Korean studies, all of them satisfied only three criteria out of the eight criteria for measurement properties, internal consistency, content validity, and interpretability. The results of this study provide evidence to develop reliable and valid tools that will satisfy the criteria for measurement properties. In addition, standardized, reliable, and valid assessment tools must be chosen for spirituality-related study.

8.
Journal of Korean Medical Science ; : e281-2021.
Article in English | WPRIM | ID: wpr-915466

ABSTRACT

Background@#People are generally considered overweight and obese if their body mass index (BMI) is above 25 kg/m 2 and 30.0 kg/m 2 , respectively. The World Health Organization proposed stricter criteria for Asians (≥ 23 kg/m2 : overweight, ≥ 25 kg/m2 : obese). We aimed to verify whether this criteria could predict adverse pregnancy outcomes in Korean women. @*Methods@#We included 7,547 Korean women from 12 institutions enrolled between June 2016 and October 2018. Women with no pre-pregnancy BMI data, not Korean, or lost to followup were excluded, leaving 6,331. The subjects were categorized into underweight, normal, overweight, class I obesity, and class II/III obesity based on a pre-pregnancy BMI of < 18.5, 18.5–22.9, 23.0–24.9, 25.0–29.9, and ≥ 30.0 kg/m2 , respectively. @*Results@#Overall, 13.4%, 63.0%, 11.8%, 9.1%, and 2.6% of women were underweight, normal, and overweight and had class I obesity and class II/III obesity, respectively. In the multivariable analysis adjusted for maternal age, a higher BMI significantly increased the risk of preeclampsia, gestational diabetes, preterm delivery caused by maternal-fetal indications, cesarean section, large for gestational age, and neonatal intensive care unit admission. @*Conclusion@#Adverse pregnancy outcomes started to increase in those with a pre-pregnancy BMI ≥ 23.0 kg/m2 after adjusting for maternal age. The modified obesity criteria could help predict adverse pregnancy outcomes in Koreans.

9.
Journal of Korean Medical Science ; : e66-2020.
Article in English | WPRIM | ID: wpr-892111

ABSTRACT

BACKGROUND@#This study aimed to evaluate the effect of cervical cerclage on the recurrence risk for preterm birth in singleton pregnant women after a twin spontaneous preterm birth (sPTB).@*METHODS@#This multicenter retrospective cohort study included women who had a singleton pregnancy from January 2009 to December 2018 at 10 referral hospitals and a twin sPTB before the current pregnancy. We compared the cervical lengths during pregnancy and pregnancy outcomes, according to the placement of prophylactic or emergency cerclage. We evaluated the independent risk factors for sPTB (< 37 weeks of gestation) in a subsequent singleton pregnancy.@*RESULTS@#For the index singleton pregnancy, preterm birth occurred in seven (11.1%) of 63 women. There was no significant difference in the cervical lengths during pregnancy in women with and without cerclage. In a multivariate logistic regression analysis, the placement of emergency cerclage was an independent risk factor for subsequent singleton preterm birth (odds ratio [OR], 93.188; 95% confidence interval [CI], 1.633–5,316.628; P = 0.027); however, the placement of prophylactic cerclage (OR, 19.264; 95% CI, 0.915–405.786; P = 0.057) was not a factor. None of the women who received prophylactic cerclage delivered before 35 weeks' gestation in the index singleton pregnancy.@*CONCLUSION@#Cerclage did not lower the risk of preterm birth in a subsequent singleton pregnancy after a twin sPTB. However, emergency cerclage was an independent risk factor for preterm birth and there was no preterm birth before 35 weeks' gestation in the prophylactic cerclage group. Therefore, close monitoring of the cervical length and prophylactic cerclage might be considered in women who have experienced a twin sPTB at extreme gestation.

10.
Journal of Korean Academy of Nursing ; : 132-146, 2020.
Article in Korean | WPRIM | ID: wpr-891776

ABSTRACT

PURPOSE@#The purpose of this study was to develop a new version of Spirituality Assessment Scale (N-SAS) and verify its reliability and validity.@*METHODS@#The total of 59 preliminary items for the N-SAS were selected through a literature review, two rounds of experts' content validation, cognitive interviews, and pre-tests. Verification of its reliability and validity was divided into two phases. In Phase I, questionnaires were collected from 219 adults. Reliability was tested using Cronbach's alpha, validity with item analysis, and exploratory factor analysis. In Phase II, questionnaires developed based on the results of Phase I were collected from 225 adults. Reliability was tested using Cronbach's alpha, validity with confirmatory factor analysis, and criterion validity.@*RESULTS@#The final version of the N-SAS comprised two dimensions (vertical and horizontal), four domains (relationship with God; meaning of life and self-integration; self-transcendence; and relationship with others, neighborhoods, and nature), and 44 items were identified. Total Cronbach's α was .97; those of each subscale ranged from .79 to .98. N-SAS scores were positively correlated with the scores of Howden's Spiritual Assessment Scale (r=.81, p<.001).@*CONCLUSION@#Findings suggest that the N-SAS can be used to measure spirituality in adults. The use of N-SAS is expected to facilitate perceiving patient's spiritual needs and providing spiritual care.

11.
Journal of Korean Academy of Nursing ; : 132-146, 2020.
Article in Korean | WPRIM | ID: wpr-811223

ABSTRACT

PURPOSE: The purpose of this study was to develop a new version of Spirituality Assessment Scale (N-SAS) and verify its reliability and validity.METHODS: The total of 59 preliminary items for the N-SAS were selected through a literature review, two rounds of experts' content validation, cognitive interviews, and pre-tests. Verification of its reliability and validity was divided into two phases. In Phase I, questionnaires were collected from 219 adults. Reliability was tested using Cronbach's alpha, validity with item analysis, and exploratory factor analysis. In Phase II, questionnaires developed based on the results of Phase I were collected from 225 adults. Reliability was tested using Cronbach's alpha, validity with confirmatory factor analysis, and criterion validity.RESULTS: The final version of the N-SAS comprised two dimensions (vertical and horizontal), four domains (relationship with God; meaning of life and self-integration; self-transcendence; and relationship with others, neighborhoods, and nature), and 44 items were identified. Total Cronbach's α was .97; those of each subscale ranged from .79 to .98. N-SAS scores were positively correlated with the scores of Howden's Spiritual Assessment Scale (r=.81, p<.001).CONCLUSION: Findings suggest that the N-SAS can be used to measure spirituality in adults. The use of N-SAS is expected to facilitate perceiving patient's spiritual needs and providing spiritual care.


Subject(s)
Adult , Humans , Factor Analysis, Statistical , Reproducibility of Results , Residence Characteristics , Spirituality
12.
Journal of Korean Medical Science ; : 66-2020.
Article in English | WPRIM | ID: wpr-810942

ABSTRACT

BACKGROUND: This study aimed to evaluate the effect of cervical cerclage on the recurrence risk for preterm birth in singleton pregnant women after a twin spontaneous preterm birth (sPTB).METHODS: This multicenter retrospective cohort study included women who had a singleton pregnancy from January 2009 to December 2018 at 10 referral hospitals and a twin sPTB before the current pregnancy. We compared the cervical lengths during pregnancy and pregnancy outcomes, according to the placement of prophylactic or emergency cerclage. We evaluated the independent risk factors for sPTB (< 37 weeks of gestation) in a subsequent singleton pregnancy.RESULTS: For the index singleton pregnancy, preterm birth occurred in seven (11.1%) of 63 women. There was no significant difference in the cervical lengths during pregnancy in women with and without cerclage. In a multivariate logistic regression analysis, the placement of emergency cerclage was an independent risk factor for subsequent singleton preterm birth (odds ratio [OR], 93.188; 95% confidence interval [CI], 1.633–5,316.628; P = 0.027); however, the placement of prophylactic cerclage (OR, 19.264; 95% CI, 0.915–405.786; P = 0.057) was not a factor. None of the women who received prophylactic cerclage delivered before 35 weeks' gestation in the index singleton pregnancy.CONCLUSION: Cerclage did not lower the risk of preterm birth in a subsequent singleton pregnancy after a twin sPTB. However, emergency cerclage was an independent risk factor for preterm birth and there was no preterm birth before 35 weeks' gestation in the prophylactic cerclage group. Therefore, close monitoring of the cervical length and prophylactic cerclage might be considered in women who have experienced a twin sPTB at extreme gestation.

13.
Journal of Korean Academy of Nursing ; : 178-190, 2020.
Article | WPRIM | ID: wpr-834488

ABSTRACT

Purpose@#The purpose of this study was to identify trends of nursing concept development in Korean journal papers to improve accurate understanding of nursing concepts. @*Methods@#A systematic review of 216 concept development articles published from 1970 to 2018 that met the inclusion criteria was conducted using Research Information Sharing Service (RISS) databases. @*Results@#The most common method of concept development was Walker and Avant’s concept analysis method, identified in 139 (64.3%) of the 216 studies, followed by 48 examples of hybrid models (22.2%) and 15 examples of evolutionary methods (6.9%). Chinn and Kramer’s method, Norris’s clarification, Wilson’s method, and others were also used. The concepts of “spirituality” and “fatigue” were most frequently analyzed. Among the 139 studies that used Walker and Avant’s concept analysis method, 127 studies (91.4%) applied all the recommended steps; the others applied the recommended steps partially, omitting description of model cases/additional cases, antecedents/consequences, and empirical indicators. Among the studies using the hybrid model, among two (5.7%) did not describe attributes, three (8.5%) did not provide definitions, and 16 (45.7%) did not present empirical indicators in the final stage. @*Conclusion@#Among concept development studies published in Korean journals, Walker and Avant’s concept analysis method is most commonly used. In case of most studies using Walker and Avant’s method a suitable concept analysis process is applied, but in case of other studies using the other concept development method, a suitable concept analysis process is not applied. Therefore, a suitable concept analysis process must be applied for concept development in nursing research.

14.
Journal of Korean Medical Science ; : e66-2020.
Article in English | WPRIM | ID: wpr-899815

ABSTRACT

BACKGROUND@#This study aimed to evaluate the effect of cervical cerclage on the recurrence risk for preterm birth in singleton pregnant women after a twin spontaneous preterm birth (sPTB).@*METHODS@#This multicenter retrospective cohort study included women who had a singleton pregnancy from January 2009 to December 2018 at 10 referral hospitals and a twin sPTB before the current pregnancy. We compared the cervical lengths during pregnancy and pregnancy outcomes, according to the placement of prophylactic or emergency cerclage. We evaluated the independent risk factors for sPTB (< 37 weeks of gestation) in a subsequent singleton pregnancy.@*RESULTS@#For the index singleton pregnancy, preterm birth occurred in seven (11.1%) of 63 women. There was no significant difference in the cervical lengths during pregnancy in women with and without cerclage. In a multivariate logistic regression analysis, the placement of emergency cerclage was an independent risk factor for subsequent singleton preterm birth (odds ratio [OR], 93.188; 95% confidence interval [CI], 1.633–5,316.628; P = 0.027); however, the placement of prophylactic cerclage (OR, 19.264; 95% CI, 0.915–405.786; P = 0.057) was not a factor. None of the women who received prophylactic cerclage delivered before 35 weeks' gestation in the index singleton pregnancy.@*CONCLUSION@#Cerclage did not lower the risk of preterm birth in a subsequent singleton pregnancy after a twin sPTB. However, emergency cerclage was an independent risk factor for preterm birth and there was no preterm birth before 35 weeks' gestation in the prophylactic cerclage group. Therefore, close monitoring of the cervical length and prophylactic cerclage might be considered in women who have experienced a twin sPTB at extreme gestation.

15.
Journal of Korean Academy of Nursing ; : 132-146, 2020.
Article in Korean | WPRIM | ID: wpr-899480

ABSTRACT

PURPOSE@#The purpose of this study was to develop a new version of Spirituality Assessment Scale (N-SAS) and verify its reliability and validity.@*METHODS@#The total of 59 preliminary items for the N-SAS were selected through a literature review, two rounds of experts' content validation, cognitive interviews, and pre-tests. Verification of its reliability and validity was divided into two phases. In Phase I, questionnaires were collected from 219 adults. Reliability was tested using Cronbach's alpha, validity with item analysis, and exploratory factor analysis. In Phase II, questionnaires developed based on the results of Phase I were collected from 225 adults. Reliability was tested using Cronbach's alpha, validity with confirmatory factor analysis, and criterion validity.@*RESULTS@#The final version of the N-SAS comprised two dimensions (vertical and horizontal), four domains (relationship with God; meaning of life and self-integration; self-transcendence; and relationship with others, neighborhoods, and nature), and 44 items were identified. Total Cronbach's α was .97; those of each subscale ranged from .79 to .98. N-SAS scores were positively correlated with the scores of Howden's Spiritual Assessment Scale (r=.81, p<.001).@*CONCLUSION@#Findings suggest that the N-SAS can be used to measure spirituality in adults. The use of N-SAS is expected to facilitate perceiving patient's spiritual needs and providing spiritual care.

16.
Safety and Health at Work ; : 125-129, 2019.
Article in English | WPRIM | ID: wpr-761326

ABSTRACT

The ultimate goal of the quality control program for special periodic health examination agencies is to diagnose the health condition of a worker correctly, based on accurate examination and analysis skills, leading to protect the worker’s health. The quality control program on three areas, chemical analysis for biological monitoring since 1995, and pneumoconiosis, audiometric testing since 1996, has contributed to improve the reliability of occupational health screenings by improving the issues including standardization of testing methods, tools, diagnostic opinions, and reliability of analysis for biological monitoring. It has contributed to improving the reliability of occupational health monitoring by rectifying the following issues associated with previous monitoring: absence of standardized testing methods, testing tools that are not upgraded, mismatching diagnostic opinions, and unreliable results of biological specimen analysis. Nevertheless, there are issues in need of further improvement such as lack of expertise or the use of inappropriate method for health examination, and passive and unwilling participation in the quality control. We suggested solutions to these problems for each area of quality control program. Above all, it is essential to provide active support for health examiners to develop their expertise, while encouraging all the health screening agencies, employers, and workers to develop the desire to improve the system and to maintain the relevance.


Subject(s)
Environmental Monitoring , Mass Screening , Methods , Occupational Health , Pneumoconiosis , Quality Control , Republic of Korea
17.
Yonsei Medical Journal ; : 879-886, 2018.
Article in English | WPRIM | ID: wpr-716923

ABSTRACT

PURPOSE: To investigate the effect of oncostatin M (OSM) on protein expression levels and enzymatic activities of matrix metalloprotainase (MMP)-2 and MMP-9 in primary trophoblasts and the invasiveness thereof under normoxia and hypoxia conditions. MATERIALS AND METHODS: Protein expression levels and enzymatic activities of MMP-2 and MMP-9 in primary trophoblasts under normoxia and hypoxia conditions were examined by Western blot and zymography, respectively. Effects of exogenous OSM on the in vitro invasion activity of trophoblasts according to oxygen concentration were also determined. Signal transducer and activator of transcription 3 (STAT3) siRNA was used to determine whether STAT3 activation in primary trophoblasts was involved in the effect of OSM. RESULTS: OSM enhanced protein expression levels and enzymatic activities of MMP-2 and MMP-9 in term trophoblasts under hypoxia condition, compared to normoxia control (p < 0.05). OSM-induced MMP-2 and MMP-9 enzymatic activities were significantly suppressed by STAT3 siRNA silencing under normoxia and hypoxia conditions (p < 0.05). Hypoxia alone or OSM alone did not significantly increase the invasiveness of term trophoblasts. However, the invasion activity of term trophoblasts was significantly increased by OSM under hypoxia, compared to that without OSM treatment under normoxia. CONCLUSION: OSM might be involved in the invasiveness of extravillous trophoblasts under hypoxia conditions via increasing MMP-2 and MMP-9 enzymatic activities through STAT3 signaling. Increased MMP-9 activity by OSM seems to be more important in primary trophoblasts.


Subject(s)
Hypoxia , Blotting, Western , In Vitro Techniques , Oncostatin M , Oxygen , RNA, Small Interfering , STAT3 Transcription Factor , Trophoblasts
18.
Journal of the Korean Society of Maternal and Child Health ; : 35-44, 2018.
Article in Korean | WPRIM | ID: wpr-758531

ABSTRACT

PURPOSE: To examine the perinatal outcomes of small for gestational age (SGA) infants, compared with non-SGA infants and those born at 39 weeks, and to determine the optimal gestational age of delivery METHODS: We performed a retrospective cohort study (n=7,580) for births at a tertiary hospital. SGA was stratified into severe (below 5th percentile) and moderate (5~10th percentile) groups. Statistical comparison was performed using the χ2 test and multivariable logistic regression models. RESULTS: As compared to the non-SGA group at 38 weeks' births, the odds of sepsis were significantly increased in the moderate SGA group (OR 2.84, 95% CI, 1.12~7.20) and severe SGA group (OR 3.63, 95% CI, 1.14~11.58). In addition, the odds of respiratory distress syndrome at 41 weeks' births were significantly increased in moderate SGA (OR 15.32, 95% CI, 1.92~122.08) and severe SGA (OR 16.31, 95% CI, 1.18~226.14) groups, compared to it in the non-SGA group. The odds of other neonatal outcomes in the moderate SGA group were not significantly increased, as compared to the non-SGA group. However, the odds of neonatal intensive care unit admission and composite morbidity in the severe SGA group were significantly increased at 35, 36, 38, 39, 40, and 41 weeks' births, as compared to the non-SGA group. There was no significant difference in neonatal outcomes from 38 to 41 weeks in moderate SGA, and from 37 to 41 weeks in severe SGA. CONCLUSIONS: If there is no medical indication, delivery at 39 weeks can be considered in SGA pregnancies. However, delivery can be planned from 37 gestational weeks in severe SGA pregnancies,with a subjective finding of fetal compromise.


Subject(s)
Humans , Infant , Infant, Newborn , Pregnancy , Cohort Studies , Gestational Age , Intensive Care, Neonatal , Logistic Models , Parturition , Retrospective Studies , Sepsis , Tertiary Care Centers
19.
Annals of Occupational and Environmental Medicine ; : 50-2018.
Article in English | WPRIM | ID: wpr-762498

ABSTRACT

BACKGROUND: This study aimed to identify the difference of perception about the role of appointing health officers by comparing and analyzing the response of entrustment workplace (EW) and specialized health management institution (SI). This is considered an important aspect of an institutional assessment to improve the quality of health management services. METHODS: A survey questionnaire was mailed to 122 SIs and 319 EWs nationwide. The questionnaire survey was about the general characteristics of SIs and EWs and main occupations for each evaluation item. In total, 81 SIs (66.4%) and 30 EWs responded to the questionnaire. A logistic regression analysis was performed to compare the opinions of SI and EW. RESULTS: Based on the analysis, the items showing statistically significant differences were as follows. Doctors’ main tasks survey: “Guidance on their wearing personal protective equipment (PPE)” (OR: 4.58), “Guidance of improvement of work environment (WE)” (OR: 3.33), etc.; Nurses’ main tasks survey: “Guidance on their wearing PPE” (OR: 3.86), “Guidance for programs on health process in confined space (CS)” (OR: 0.36), “Guidance on the hearing conservation program (HCP)” (OR: 0.28), etc.; Industrial hygienist (IH)‘s main tasks survey: “Guidance of work through inspection (WTI)” (OR: 0.15), “Guidance on the improvement of WE” (OR: 0.32), “Management confirmation of substances used by process and Material Safety Data Sheet (MSDS)” (OR: 0.08), “Guidance on posting or keeping of MSDS and warning signs” (OR: 0.03), “Prevention of dust-induced medical problems” (OR: 0.28), “Guidance for programs of health process in CS” (OR: 0.39), etc. CONCLUSIONS: It is necessary to educate the EWs to recognize the need for physicians to perform tasks, such as wearing a PPE, and instruction to improve WE. As for nurses’ tasks, such as education about the CS and the noise work, educating the nurses of the SI is regarded necessary as the demand of the EWs is considered. With respect to the unique tasks of IH, such as WE management and instructions for wearing PPE, among several other tasks of IH, training should be provided for improved IH recognition.


Subject(s)
Confined Spaces , Delivery of Health Care , Education , Hearing , Korea , Logistic Models , Material Safety Data Sheets , Noise , Occupations , Personal Protective Equipment , Postal Service
20.
Journal of Korean Medical Science ; : e80-2018.
Article in English | WPRIM | ID: wpr-713496

ABSTRACT

BACKGROUND: The purpose of this study was to compare the fetal/infant mortality risk associated with each additional week of expectant management to that associated with immediate delivery in women with multiple gestations. METHODS: This was a retrospective national cohort study of 94,170 multiple deliveries, 92,619 (98.4%) twin and 1,352 (1.44%) triplet pregnancies, between 32 0/7 and 42 6/7 weeks of gestation recorded in the Korean vital statistics database. We investigated the risks of stillbirth and infant death after birth in Korea according to the week of gestation in twin and triplet pregnancies. RESULTS: The risk of stillbirth significantly increased between 34 and 35 weeks of gestation and between 37 and 38 weeks of gestation in twin pregnancies and between 34 and 37 weeks of gestation in triplet pregnancies. The risk of infant death following delivery gradually decreased as pregnancies approached full term. Week-by-week differences were statistically significant between 33 and 34 weeks, with decreasing risks of infant death at advancing gestational ages in twin pregnancies. At 37 weeks of gestation, the relative risk of mortality was significantly higher with expectant management compared with immediate delivery (relative risk, 3.00; 95% confidence interval, 1.41–6.38). CONCLUSION: In twin pregnancies, delivery at 37 weeks of gestation can minimize the risks of stillbirth and infant death in uncomplicated cases, although individual maternal and fetal characteristics must be considered when determining the optimal timing of delivery. In multiple pregnancies, close fetal surveillance is needed after 34 weeks of gestation.


Subject(s)
Female , Humans , Infant , Pregnancy , Cohort Studies , Delivery, Obstetric , Gestational Age , Infant Death , Korea , Mortality , Parturition , Pregnancy, Multiple , Pregnancy, Triplet , Pregnancy, Twin , Retrospective Studies , Stillbirth , Twins , Vital Statistics
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