1.A Case of Ventricular Septal Defect After Acute Myocardial Infarction.
Hong Khee KIM ; J O LEE ; G H YOON ; K S KIM ; M S KIM ; J S SONG ; J H BAE
Korean Circulation Journal 1986;16(1):155-158
The rupture of ventricular septum complicating acute myocardial infarction requires prompt recognition for the correct management of the patient. The diagnosis of this condition had required right heart catheterization. We performed two-dimensional and Doppler echocardiography in patients with systolic murmur after acute myocardioal infarction. Ventricular septal defect was found at lower interventricular septum by mapping technique of pulsed wave Doppler system and obtained high velocity Doppler tracting by continuous wave Doppler echocardiography. Doppler echocardiography could be useful noninvasive method for detection of ventricular septal rupture after acute myocardial infarction.
Cardiac Catheterization
;
Cardiac Catheters
;
Diagnosis
;
Echocardiography, Doppler
;
Heart Septal Defects, Ventricular*
;
Humans
;
Infarction
;
Myocardial Infarction*
;
Rupture
;
Systolic Murmurs
;
Ventricular Septal Rupture
;
Ventricular Septum
2.Total Antioxidant Status in Maternal and Neonatal Plasma According to Delivery Type.
G SR LEE ; S J KIM ; S Y KIM ; J M KANG ; S Y HUR ; Y LEE ; J C SHIN ; E J KIM ; S K SONG ; S P KIM
Korean Journal of Obstetrics and Gynecology 1998;41(8):2067-2071
Antioxidants oppose the toxic actions of lipid peroxides and oxygen radicals, and they limit the amount of lipid peroxides formed. Women with normal pregnancies have an increase in oxidative stress and lipid peroxidation when compared with nonpregnant women. The antioxidants also increase progressively with advancing gestation, and the antioxidants in the fetus also increase with advancing gestation, especially during late gestation. The purpose of this study is to investigate the diefference of antioxidant status in maternal and neonatal plasma according to the delivery type. So, we investigated the status of antioxidant in the maternal and neonatal plasma when compared normal vaginal delivery with Cesarian section without labor. This study was done under the hypothesis that labor pain is originated from the hypoxic state of myometrium during uterine contraction. The number of women who were studied was total 56, 24 women were delivered by normal vaginal delivery and 32 women were done by Cesarean section without labor. The blood was sampled during active labor and postpartum 24 hour in the case of normal vaginal delivery, the women who were done Cesarean section being sampled before operation and 24 hours after operation. The neonatal blood was sampled from cord, birth 1 day and 3 day. The antioxidant levels were measured by Total Antioxidant Status (Randox Laboratory Ltd., UK) kit. The results were as follows. 1. The mean maternal plasma antioxidant status was not significantly different according to delivery types and not significantly different when compared antepartum with postpartum (vaginal delivery; antepartum: 1.54+/-0.31 mM/L, postpartum: 1.58+/-0.32 mM/L, Cesarean section; antepartum: 1.55+/-0.29 mM/L, postpartum: 1.56+/-0.33 mM/L). 2. The neonatal antioxidant status was not significantly different between the neonates who were born by vaginal delivery and the neonates who were born by Cesarean section. The neonatal plasma antioxidant status was increased progressively after birth (cord: birth 1 day: birth 3 day=1.46+/-0.25 mM/L: 1.59+/-0.25 mM/L: 1.79+/-0.37 mM/L). Therefore, labor pain was not seems to be significantly affect the maternal and neonatal plasma antioxidant status. And the neonatal antioxidant status was increased for adaptation to the external environment after birth.
Animals
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Antioxidants
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Cesarean Section
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Female
;
Fetus
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Humans
;
Infant, Newborn
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Labor Pain
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Lipid Peroxidation
;
Lipid Peroxides
;
Mice
;
Myometrium
;
Oxidative Stress
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Parturition
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Plasma*
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Postpartum Period
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Pregnancy
;
Reactive Oxygen Species
;
Toxic Actions
;
Uterine Contraction
3.Evaluation of imaging performance of major image guidance systems
Chan MF* ; Yang J ; Song Y ; Burman C ; Chan P ; Li S
Biomedical Imaging and Intervention Journal 2011;7(2):1-7
Purpose: The imaging characteristics of two popular kV cone-beam CT (CBCT) and two MVCT systems utilised in
image-guided radiation therapy (IGRT) were evaluated.
Materials and methods: The study was performed on Varian Clinac iX, Elekta Synergy S, Siemens Oncor, and
Tomotherapy. A CT phantom (Catphan-504, Phantom Laboratory, Salem, NY) was scanned for measurements of image
quality including image noise, uniformity, density accuracy, spatial resolution, contrast linearity, and contrast resolution.
The measurement results were analysed using in-house image analysis software. Reproducibility, position correction,
and geometric accuracy were also evaluated with markers in a smaller alignment phantom. The performance evaluation
compared volumetric image properties from these four systems with those from a conventional diagnostic CT (CCT).
Results: It was shown that the linearity of the two kV CBCT was fairly consistent with CCT. The Elekta CBCT
with half-circle 27-cm FOV had higher CT numbers than the other three systems. The image noises of the Elekta kV
CBCT, Siemens MV CBCT, and Tomotherapy fan-beam CT (FBCT) are about 2-4 times higher than that of the Varian
CBCT. The spatial resolutions of two kV CBCTs and two MV CBCTs were 8-11 lp/cm and 3-5 lp/cm, respectively.
Conclusion: Elekta CBCT provided a faster image reconstruction and low dose per scan for half-circle scanning.
Varian CBCT had relatively lower image noise. Tomotherapy FBCT had the best uniformity.
4.Clinical Study on Cesarean Hysterectomy.
Byung Soo KIM ; Duk Rhun PARK ; Hee Jin SONG ; Yong Bok YOON ; Jang Hyun LEE ; Sang Wook PARK ; J J LIM ; S H CHUN ; I H HWANG ; D P KIM
Korean Journal of Perinatology 1997;8(2):138-144
Cesarean hysterectomy is associated with high risks of severe blood loss, postoperative complication, and maternal morbidity. This study was undertaken to identify the risk factors of cesarean hysterectomy and to reduce the postoperative complications and maternal morbidity. There were 6,362 deliveries between January 1992 and December 1996 at department of obstetrics and gynecology, Inchon Christian Hospital. 1'he results of this study were as follows, 15 cases of cesarean hysterectomy were performed during this period. Cesarean hysterectomy was performed in 10 cases (0.32 %) among 3178 cesarean deliveries and in 5 cases (0.16 %) among 3184 vaginal deliveries. The incidence of cesarean hysterectomy was 0.24 % (15/6,362). The age of patients ranged from 24 to 38 years old. The maternal mortality and morbidity were 0 % (0/15) and 86.7% (13/15), respectively. Indications for cesarean hysterectomy were uterine atony (53.3 %), uterine myoma with pregnancy (20.0 %), placenta accreta and/or increta(20.0 %), and placenta previa (6.7 %) in orders. The associated risk factors of cesarean hysterectomy were prior cesarean delivery (46.7 %) and placenta previa (6.7 %). The postoperative complications were anemia (60.0%), febrile morbidity (13.3 %), paralytic ileus (6.7 %), and wound disruption (6.7 %). We concluded that risk factors of cesarean hysterectomy were cesarean delivery, prior cesarean delivery, uterine myoma with pregnancy, placenta accreta and/or increta, and placenta previa and that sufficient fresh blood and careful prenatal care were needed in risk group of postpartum bleeding.
Adult
;
Anemia
;
Gynecology
;
Hemorrhage
;
Humans
;
Hysterectomy*
;
Incheon
;
Incidence
;
Intestinal Pseudo-Obstruction
;
Leiomyoma
;
Maternal Mortality
;
Obstetrics
;
Placenta Accreta
;
Placenta Previa
;
Postoperative Complications
;
Postoperative Hemorrhage
;
Postpartum Period
;
Pregnancy
;
Prenatal Care
;
Risk Factors
;
Uterine Inertia
;
Wounds and Injuries
5.Sampling methods and errors appearing in the China National Human Biomonitoring Program.
Z J CAO ; Y L QU ; F ZHAO ; L LIU ; S X SONG ; Y C LIU ; J Y CAI ; X M SHI
Chinese Journal of Epidemiology 2018;39(12):1642-1647
Objective: To explore the sampling method in China National Human Biomonitoring Program (HBP) and the related errors, so as to calculate and evaluate the study design in sampling. Methods: The sampling method of HBP is of multistage nature. Taking the results of sampling method from Guizhou province as an example, results related to sampling error and variation coefficient were calculated, using the multistage unequal probability sampling error method. Results: The HBP covered 152 monitoring sites in 31 provinces (autonomous regions and municipalities) and with 21 888 residents selected. The replacement rates at various stages were 5.26%, 6.35% and 40.6% respectively. The sampling error in Guizhou province was 3 207 594, and the coefficient of variation was 0.097. Conclusions: According to the multi-stage unequal probability sampling method, the sampling coefficient variability appeared small with high precision, in Guizhou province. However, this method did not consider the weight adjustment of non-sampling errors such as population missing rate and response rate. Methods related to the calculation on multi-stage sampling error among large-scale public health monitoring projects need to be further studied.
China
;
Cities
;
Environmental Monitoring
;
Humans
;
Research Design
6.Associations between Brain Perfusion and Sleep Disturbance in Patients with Alzheimer's Disease.
Jooyeon J IM ; Hyeonseok S JEONG ; Jong Sik PARK ; Seung Hee NA ; Yong An CHUNG ; YoungSoon YANG ; In Uk SONG
Dementia and Neurocognitive Disorders 2017;16(3):72-77
BACKGROUND AND PURPOSE: Although sleep disturbances are common and considered a major burden for patients with Alzheimer's disease (AD), the fundamental mechanisms underlying the development and maintenance of sleep disturbance in AD patients have yet to be elucidated. The aim of this study was to examine the correlation between regional cerebral blood flow (rCBF) and sleep disturbance in AD patients using technetium-99m hexamethylpropylene amine oxime single-photon emission computed tomography (SPECT). METHODS: A total of 140 AD patients were included in this cross-sectional study. Seventy patients were assigned to the AD with sleep loss (SL) group and the rest were assigned to the AD without SL group. SL was measured using the sleep subscale of the Neuropsychiatric Inventory. A whole-brain voxel-wise analysis of brain SPECT data was conducted to compare the rCBF between the two groups. RESULTS: The two groups did not differ in demographic characteristics, severity of dementia, general cognitive function, and neuropsychiatric symptoms, with the exception of sleep disturbances. The SPECT imaging analysis displayed decreased perfusion in the bilateral inferior frontal gyrus, bilateral temporal pole, and right precentral gyrus in the AD patients with SL group compared with the AD patients without SL group. It also revealed increased perfusion in the right precuneus, right occipital pole, and left middle occipital gyrus in the AD with SL group compared with the AD without SL group. CONCLUSIONS: The AD patients who experienced sleep disturbance had notably decreased perfusion in the frontal and temporal lobes and increased rCBF in the parietal and occipital regions. The findings of this study suggest that functional alterations in these brain areas may be the underlying neural correlates of sleep disturbance in AD patients.
Alzheimer Disease*
;
Brain*
;
Cerebrovascular Circulation
;
Cognition
;
Cross-Sectional Studies
;
Dementia
;
Frontal Lobe
;
Humans
;
Occipital Lobe
;
Parietal Lobe
;
Perfusion*
;
Prefrontal Cortex
;
Rabeprazole
;
Temporal Lobe
;
Tomography, Emission-Computed
;
Tomography, Emission-Computed, Single-Photon
7.Changes in Regional Cerebral Perfusion after Nicergoline Treatment in Early Alzheimer's Disease: A Pilot Study.
Jooyeon J IM ; Hyeonseok S JEONG ; Jong Sik PARK ; YoungSoon YANG ; Seung Hee NA ; Jin Kyoung OH ; Yong An CHUNG ; In Uk SONG
Dementia and Neurocognitive Disorders 2017;16(4):104-109
BACKGROUND AND PURPOSE: Nicergoline is an ergoline derivative that is used to treat cognitive deficits in cerebrovascular disease and various forms of dementia. Although therapeutic effects of nicergoline have been established, little is known about its effects on cerebral perfusion in Alzheimer's disease (AD). The aim of this study was to examine the role of nicergoline in regional cerebral blood flow (rCBF) of AD patients using technetium-99m hexa-methyl-propylene-amine-oxime single photon emission computed tomography (SPECT). METHODS: Sixteen patients with early AD underwent a comprehensive clinical assessment including cognitive testing and SPECT scans before and after nicergoline treatment. Nicergoline (30 mg twice daily) was administered for an average duration of 1.5 years. Clinical and cognitive functioning was assessed using the Mini-Mental State Examination, Clinical Dementia Rating (CDR), CDR-Sum of Boxes, Global Deterioration Scale, Barthel Activities of Daily Living Index, Instrumental Activities of Daily Living, and Geriatric Depression Scale. RESULTS: Nicergoline treatment induced changes in the severity of dementia, cognitive function, activities of daily living, and depressive symptoms, which were not statistically significant. During the follow-up, the patients showed significant increases in their relative rCBF in the superior frontal gyrus, precentral gyrus, and postcentral gyrus. CONCLUSIONS: Nicergoline treatment improves perfusion of the frontal and parietal regions in early AD patients. It is possible that the increased perfusion in the superior frontal gyrus may be related to the mechanisms that delay or prevent progressive deterioration of cognitive functions in AD.
Activities of Daily Living
;
Alzheimer Disease*
;
Cerebrovascular Circulation
;
Cerebrovascular Disorders
;
Cognition
;
Cognition Disorders
;
Dementia
;
Depression
;
Ergolines
;
Follow-Up Studies
;
Frontal Lobe
;
Humans
;
Nicergoline*
;
Parietal Lobe
;
Perfusion*
;
Pilot Projects*
;
Prefrontal Cortex
;
Somatosensory Cortex
;
Therapeutic Uses
;
Tomography, Emission-Computed, Single-Photon
8.Variability of extracorporeal cardiopulmonary resuscitation utilization for refractory adult out-of-hospital cardiac arrest: an international survey study.
Patrick J COPPLER ; Benjamin S ABELLA ; Clifton W CALLAWAY ; Minjung Kathy CHAE ; Seung Pill CHOI ; Jonathan ELMER ; Won Young KIM ; Young Min KIM ; Michael KURZ ; Joo Suk OH ; Joshua C REYNOLDS ; Jon C RITTENBERGER ; Kelly N SAWYER ; Chun Song YOUN ; Byung Kook LEE ; David F GAIESKI
Clinical and Experimental Emergency Medicine 2018;5(2):100-106
OBJECTIVE: A growing interest in extracorporeal cardiopulmonary resuscitation (ECPR) as a rescue strategy for refractory adult out-of-hospital cardiac arrest (OHCA) currently exists. This study aims to determine current standards of care and practice variation for ECPR patients in the USA and Korea. METHODS: In December 2015, we surveyed centers from the Korean Hypothermia Network (KORHN) Investigators and the US National Post-Arrest Research Consortium (NPARC) on current targeted temperature management and ECPR practices. This project analyzes the subsection of questions addressing ECPR practices. We summarized survey results using descriptive statistics. RESULTS: Overall, 9 KORHN and 4 NPARC centers reported having ECPR programs and had complete survey data available. Two KORHN centers utilized extracorporeal membrane oxygenation only for postarrest circulatory support in patients with refractory shock and were excluded from further analysis. Centers with available ECPR generally saw a high volume of OHCA patients (10/11 centers care for >75 OHCA a year). Location of, and providers trained for cannulation varied across centers. All centers in both countries (KORHN 7/7, NPARC 4/4) treated comatose ECPR patients with targeted temperature management. All NPARC centers and four of seven KORHN centers reported having a standardized hospital protocol for ECPR. Upper age cutoff for eligibility ranged from 60 to 75 years. No absolute contraindications were unanimous among centers. CONCLUSION: A wide variability in practice patterns exist between centers performing ECPR for refractory OHCA in the US and Korea. Standardized protocols and shared research databases might inform best practices, improve outcomes, and provide a foundation for prospective studies.
Adult*
;
Cardiopulmonary Resuscitation*
;
Catheterization
;
Coma
;
Extracorporeal Membrane Oxygenation
;
Heart Arrest
;
Humans
;
Hypothermia
;
Korea
;
Out-of-Hospital Cardiac Arrest*
;
Practice Guidelines as Topic
;
Prospective Studies
;
Research Personnel
;
Shock
;
Standard of Care
9.HIV prevalence and risk factors among premarital couples in Dehong Prefecture of Yunnan Province, 2017
Yu-rong GONG ; Shi-jie QIAO ; Shi-jiang YANG ; Yue-cheng YANG ; Ren-hai TANG ; Yan-fen CAO ; Jie GAO ; Lin LI ; Run-hua YE ; Ji-bao WANG ; Shi-tang YAO ; Ying-ying DING ; Na HE ; Song DUAN
Chinese Journal of Disease Control & Prevention 2019;23(1):114-117
Objective To understand the prevalence of HIV infection and its influencing factors in the premarital physical examination population in Dehong Prefecture, Yunnan Province, 2017. Methods The data of people receiving premarital medical examination was collected, the demographic characteristics was described and the related factors was analyzed by Logistic regression. Results There were 21 875 participants receiving premarital medical examination in Dehong. 98(0.45%) participants were confirmed positive for HIV and male infection rate was 0.47% (52/10 955) and female was 0.42% (46/10 920). Among the 98 patients, 20 patients were infected in the first time, and main route was sexual transmission accounting for 81.63% (80/98). Logistic multivariate regression analysis showed that age, ethnicity and drug use were the influencing factors for premarital couples infecting HIV. The risk of HIV infection in 31-40 and 41-50 years old group was higher than the people under 25 years old group(OR=3.78, 95% CI:1.81-7.89, P<0.001;OR=3.95, 95% CI:1.72-9.08, P=0.001). The infection risk of Dai and Jingpo ethnic group was higher than that of the Han ethnic(OR=1.86, 95% CI:1.06-3.29, P=0.031;OR=3.25, 95% CI:1.81-5.84, P<0.001). The risk of infection among drug users was much higher than non-drug users (OR=926.76, 95% CI:271.65-3 161.71, P<0.001). Conclusion Age, ethnicity, and drug use are influencing factors of HIV infection among premarital couples. Targeted measures need to be taken against risk factors. HIV infection is mainly transmitted by sexual transmission. It can be effectively detected and controlled through premarital medical examination.
10.Discussion on implementation of public health standards adopted in centers for disease control and prevention.
L FENG ; B SONG ; Z F ZANG ; N L SUN ; J S WANG ; F LIU ; S W LEI
Chinese Journal of Epidemiology 2018;39(9):1287-1290
As the most important phase in standardization activity, implementation saves as the essence. CDC in China are the major institutions undertaking disease control and prevention. Implementing the standards of public health provides technical basis for CDC to complete the task of disease control and prevention. In the study, spot conversation and questionnaire were used to investigate the implementation of standards on public health in CDC. Results showed that the staff of CDC got to know the standards through the Internet. The departments of CDC which conducted training and sent staff to attend training courses accounted for 50.00%(25/50) and 34.00%(17/50), respectively. State mandatory rule is still the main reason for relevant departments to implement the standards of the public health. Government promotion activities facilitate the implementation of Standards, and the degree of familiarity with Standards affects the implementation as well. The paper summarizes the existing problems, such as the lack of coordination between departments of public health at provincial level or below, lack of access to standards, and the need to strengthen the training of the standard implementation etc. It puts forward some suggestions to strengthen the implementation of public health Standards.
China/epidemiology*
;
Communicable Disease Control/organization & administration*
;
Communicable Diseases/epidemiology*
;
Humans
;
Preventive Health Services/organization & administration*
;
Public Health/standards*
;
Public Health Practice
;
United States