2.Clinical study on cesarean hysterectomy.
Sang Yoon JUNG ; Hyung Woo RYU ; Byung Tae LEE ; Moon Su KIM ; Young In KIM ; Yoon Sun LEE ; Seung Bo PARK
Korean Journal of Obstetrics and Gynecology 1991;34(2):209-215
No abstract available.
Hysterectomy*
3.Clinical study on cesarean hysterectomy.
Sang Yoon JUNG ; Hyung Woo RYU ; Byung Tae LEE ; Moon Su KIM ; Young In KIM ; Yoon Sun LEE ; Seung Bo PARK
Korean Journal of Obstetrics and Gynecology 1991;34(2):209-215
No abstract available.
Hysterectomy*
4.The evaluation of the combined use of serum ?hCG and ultrasound in diagnosis of ectopic pregnancy.
Jong Suk KO ; Ha Bong KIM ; Myeong Suk LEE ; Hyung Sun RYU ; Ho Jun CHOI ; Seung Kwan SHIN
Korean Journal of Obstetrics and Gynecology 1993;36(7):1407-1415
No abstract available.
Diagnosis*
;
Female
;
Pregnancy
;
Pregnancy, Ectopic*
;
Ultrasonography*
5.Atypical Fracture of the Ulna Associated with 3 Years of Bisphosphonate Medication.
Seung Min RYU ; Doo Hyung YOON ; Sam Guk PARK
The Journal of the Korean Orthopaedic Association 2018;53(3):277-282
There have been many studies regarding the relationship between long-term use of bisphosphonate and atypical femoral fractures in the literature. However, studies regarding atypical fractures of the upper limbs are severely limited, especially in Korea. Here, we report an atypical fracture of the ulna in a patient with bisphosphonate medication for a relatively short period of 3 years without any history of fractures at other sites.
Femoral Fractures
;
Humans
;
Korea
;
Osteoporosis
;
Ulna*
;
Upper Extremity
6.Comparative Analysis of decreased Mental state Patients after Overdose with Sedative-hypnotics
Seung Jae OH ; Soo Hyung CHO ; So Yeon RYU
Journal of The Korean Society of Clinical Toxicology 2022;20(1):8-14
Purpose:
This study was undertaken to investigate how sedative-hypnotics affect the occurrence and severity of the patient’s symptoms. In addition, we conducted a study to determine the type of patients who reacted severely and required hospitalization;patients were accordingly classified as hospitalized patients and patients discharged from the emergency room.
Methods:
From January 2017 to December 2019, we investigated the demographics, drug information, history, laboratory tests, and severity of patients who visited our emergency department and were diagnosed with benzodiazepine, zolpidem, and doxylamine succinate overdose. We further compared details of hospitalized patients and discharged patients.
Results:
Subjects who had overdosed and visited the ED included 120 for benzodiazepine, 147 for zolpidem, and 27 for doxylamine succinate. Comparisons between the three groups revealed differences in their early diagnosis, psychiatric history, and sleep disturbance. Differences between groups were also determined for mental state, poisoning history, treatment received in the intensive care unit, and intubation and ventilator support. In cases of benzodiazepine overdose, we obtained a high hospitalization rate (40.0%), admission to the intensive care unit (24.2%), and intubation rate (18.3%). Comparisons between hospitalized patients and discharged groups showed differences in transferred patients, early diagnosis, and mental state.
Conclusion
Patients poisoned by sedative-hypnotics are increasing every year. In cases of benzodiazepine and zolpidem, the hospitalization rates were high, and benzodiazepine overdose resulted in hospitalization, intensive care unit admission, and pneumonia in a majority of cases. Therefore, active treatment and quick decisions in the emergency room are greatly required.
7.Endometrial and Corporal Extension in Carcinoma of Uterine Cervix.
Mun Hwi LEE ; Sam Hyun CHO ; Seung Ryong KIM ; Kyung Tae KIM ; Soo Hyun CHO ; Hyung MOON ; Yoon Young HWANG ; Ki Young RYU
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(1):60-66
OBJECTIVE: The objective of this study was to evaluate clinical significance of endometrial and corporal extensions of Carcinoma of the uterine cervix. METHODS: The 273 patients with locally advanced cervical cancer who underwent radical hysterectomy after neoadjuvant chemotherapy between Jan 1983 to May 1998 were included in this study and endometrial and corporal extension was examined by pathologic report. Then, clinical characteristics such as age, stage, tumor size, geographic contour, the lymph node and parametrial invasions, recurrence rate, and 5 year-survival rate were compared between extension(n=30) and non-extension(n=243) group. Pearson chi-square test, Fisher's exact test, and Kaplan-mayer survival analysis were used for calculation of statistical significance between two group. p-value less than 0.05 was considered to be clinically significant. RESULTS: The incidence of endometrial and corporal extension in this locally advanced cervical cancer group was 11% (30/273). The endometrial and corporal extension were closely related with advanced stage, larger cervical tumor mass, endophytic type, and pelvic lymph node metastasis. However, 5-year disease free survival rates or 5-year actuarial survival rates did not show statistically significant differences between extension and non-extension group (7S% vs 83% and 81% vs 84%, respectively) CONCLUSION: The endometrial and corporal extension were closely associated to high risk factors of advanced cervical cancer. Though its clinical significance for poor outcome were not proved in this study, prospective study with more patients is needed to clarify its clinical significance.
Cervix Uteri*
;
Disease-Free Survival
;
Drug Therapy
;
Female
;
Humans
;
Hysterectomy
;
Incidence
;
Lymph Nodes
;
Neoplasm Metastasis
;
Recurrence
;
Risk Factors
;
Survival Rate
;
Uterine Cervical Neoplasms
8.Cases Series of Malignant Lymphohematopoietic Disorder in Korean Semiconductor Industry.
Eun A KIM ; Hye Eun LEE ; Hyung Woo RYU ; Seung Hyun PARK ; Seong Kyu KANG
Safety and Health at Work 2011;2(2):122-134
OBJECTIVES: Seven cases of malignant lymphohematopoietic (LHP) disorder were claimed to have developed from occupational exposure at two plants of a semiconductor company from 2007 to 2010. This study evaluated the possibility of exposure to carcinogenic agents for the cases. METHODS: Clinical courses were reviewed with assessing possible exposure to carcinogenic agents related to LHP cancers. Chemicals used at six major semiconductor companies in Korea were reviewed. Airborne monitoring for chemicals, including benzene, was conducted and the ionizing radiation dose was measured from 2008 to 2010. RESULTS: The latency of seven cases (five leukemiae, a Non-Hodgkin's lymphoma, and an aplastic anemia) ranged from 16 months to 15 years and 5 months. Most chemical measurements were at levels of less than 10% of the Korean Occupational Exposure Limit value. No carcinogens related to LHP cancers were used or detected. Complete-shielded radiation-generating devices were used, but the ionizing radiation doses were 0.20-0.22 uSv/hr (background level: 0.21 microSv/hr). Airborne benzene was detected at 0.31 ppb when the detection limit was lowered as low as possible. Ethylene oxide and formaldehyde were not found in the cases' processes, while these two were determined to be among the 263 chemicals in the list that was used at the six semiconductor companies at levels lower than 0.1%. Exposures occurring before 2002 could not be assessed because of the lack of information. CONCLUSION: Considering the possibility of exposure to carcinogenic agents, we could not find any convincing evidence for occupational exposure in all investigated cases. However, further study is needed because the semiconductor industry is a newly developing one.
Benzene
;
Carcinogens
;
Epidemiologic Studies
;
Ethylene Oxide
;
Ethylenes
;
Formaldehyde
;
Korea
;
Leukemia
;
Limit of Detection
;
Lymphoma
;
Lymphoma, Non-Hodgkin
;
Occupational Exposure
;
Radiation, Ionizing
;
Semiconductors
9.Gallstone Dissolution with Methyl Tertiary Butyl Ether: An Experimental Study on Selection of Gallstone by Plain Radiography and Ultrasonography.
Yong Chul LEE ; Young Goo KIM ; Kun Sang KIM ; Jong Beum LEE ; Dae Sik RYU ; Seung Chul OH ; Hyung Jin SHIM
Journal of the Korean Radiological Society 1994;30(1):125-132
PURPOSE: The purpose of this study was to determine whether in vitro plain radiography and ultrasonography(US) could predict the outcome of gallstone dissolution with methyl tert-butyl ether(MTBE). METHODS AND MATERIALS: The plain radiography and ultrasonography of 75 gallstones removed at surgery from 75 patients were obtained. The plaih radiographic findings were grouped by their calcification pattern as group l:lucent, group 2:central, group 3:diffuse and group 4: laminated. The ultrasonographic findings were grouped by their echo pattern as group 1 :arc shaped, clearly defined surface echo followed by distinct acoustic shadow, group 2:strong surface echo with gradually attenuating, meniscus shaped inner echo, group 3:strong surface echo with fill-in pattern of internal echo, group 4:strong surface echo with irregular inner echo and group 5:entirely discerning circumsference, homogeneous internal echotexture. After imaging, the gallstones underwent MTBE dissolution for 6 hours. The residual weight of each stone was measured every 2 hours. The correlation between imaging findings and dissolution rate was retrospectively analysed. RESULTS: The radiolucent and central calcification stones were dissolved rapidly as compared with the diffuse and laminated calcification stones(p<.05). There was no statistically significant difference among the groups based on ultrasonographic findings alone. However, after exclusion of the certain calcification groups that were resistent to dissolution-diffuse or laminated calcification stones-all US groups except one that shows wholly circumscribed margin and homogeneous fill-in pattern of internal echo dissolved well to average 20% or less of the original weight(p<.05). CONCLUSION: MTBE dissolution can be tried in stones that meet both ultrasonographic (not a stone with homogeneous fill-in pattern of internal echo) and plain radiographic (radiolucent or cental calcification stone) criteria.
Acoustics
;
Ether*
;
Gallstones*
;
Humans
;
Radiography*
;
Retrospective Studies
;
Ultrasonography*
10.Reconstruction of the Transmitral Flow Rate Curve with M-Mode,2-Dimensional and Doppler Echocardiography -Validation Study-.
Dong Woon KIM ; Seung Woo PARK ; Duk Kyung KIM ; Kyu Hyung RYU ; Byung Hee OH ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1989;19(2):273-282
To validate ventricular diastolic phase parameters of reconstructed transmitral flow rate curve by M-mode, 2-dimensional and pulsed Doppler Echocardiography, these parameters were compared with same parameters by left ventriculography. The study population was 22 patients who received both coronary arteriography and echocardiographic examination. Transmitral flow rate curve and left ventricular filling volume curve were reconstructed from transmitral flow velocity curve by pulsed Doppler, mitral annulus diameter by two diameter by two dimensional and diastolic motion of both mitral leafltes by M-mode echocardiography. From left ventriculography, left ventricular filling volume curve and transmitral flow rate curve were made using area-length method by Sandler and Dodge. From trasmitral flow fraction, 1/2 diastolic time filling fraction, normalized peak filling volume, 1/3 diastolic time filling fraction, 1/2 diastolic time fraction, normalized peak early filling rate and ratio of early to late peak filling rate were measured. Correlation between same parameters derived from echocardiography and left ventriculography were observed. 1) Total diastolic filling volume:correlation coefficient r=0.47, P<0.05. 2) 1/3 diastolic time filling fraction:correlation coefficient r=0.90, P<0.001. 3) 1/2 diastolic time filling fraction:correlation coefficient r=0.80, P<0.001. 4) Normalized peak early filling rate:correlation coefficient r=0.57, P<0.01. 5) Ratio of early to late peak filling rate:correlation coefficient r=0.85, P<0.001. Therefore, left ventricular diastolic phase parameters of reconstructed transmitral flow rate curve using, M-mode, 2-dimensional and pulsed Doppler echocardiography seems to be useful for the noninvasive evaluation of the left ventricular diastolic function.
Angiography
;
Echocardiography
;
Echocardiography, Doppler*
;
Echocardiography, Doppler, Pulsed
;
Humans