1.A Complex Chromosomal Rearrangement Involving 46,XX,t(1;7;16)(p32.1;q22;q13) in a Female with Recurrent Miscarriages After in vitro Fertilization.
Hanjoon KIM ; Juwon KIM ; Young UH ; Kap Jun YOON ; Hyuck Dong HAN
Laboratory Medicine Online 2013;3(3):178-182
Balanced complex chromosomal rearrangements involving three or more chromosomes are often detected in phenotypically normal female patients with an adverse obstetric history. Here, we report a 32-yr-old phenotypically normal female with a history of multiple in vitro fertilization (IVF) failures and carrying a balanced complex chromosomal rearrangement involving chromosomes 1, 7, and 16. Cytogenetic analysis revealed the following complex karyotype: 46,XX,t(1;7;16)(p32.1;q22;q13). The patient achieved a twin pregnancy after IVF, although no heartbeat was detected during the sixth gestational week checkup. Tissues from intrauterine fetal demise were tested for chromosomal analysis and revealed 46,XX,t(1;7;16)(p32.1;q22;q13)mat and 46,XY,der(1)t(1;16)(p32.1;q13),der(7)t(1;7) (p32.1;q22)mat. This case illustrates the importance of chromosomal analysis in infertile females or infertile females with multiple IVF failures. Therefore, it would be beneficial for patients visiting infertility clinics to undergo cytogenetic screening for complex chromosome rearrangements before further counseling and prenatal investigations.
Abortion, Habitual
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Counseling
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Cytogenetic Analysis
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Cytogenetics
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Female
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Fertilization in Vitro
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Humans
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Infertility
;
Lifting
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Mass Screening
;
Pregnancy
;
Pregnancy, Twin
2.Primary Hepatic Leiomyosarcoma.
Dongho CHOI ; Kyeong Geun LEE ; Hanjoon KIM ; Hwon Kyum PARK ; Oh Jung KWON ; Kwang Soo LEE
Journal of the Korean Surgical Society 2003;64(5):434-436
A primary hepatic sarcoma is a rare tumor, that most frequently arises from hepatic connective tissue or vascular channels, and is usually located in the intrahepatic area. Pedunculated, or bulging, lesions have also been reported. We encountered a pedunculated primary hepatic leiomyosarcoma occurring in a 61-year-old woman. A giant exophytic hepatic mass measuring 15x10cm in size, was located in the left lateral segment of the liver, which was compressing the stomach. A left lateral segmentectomy was performed. Microscopically, the tumor was composed of spindle cells reactive to muscle specific actin. The mitotic figures were 5/10 high power fields indicating the tumor was malignant. No other primary sites were recognized from clinical studies.
Actins
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Connective Tissue
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Female
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Humans
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Leiomyosarcoma*
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Liver
;
Mastectomy, Segmental
;
Middle Aged
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Sarcoma
;
Stomach
3.Clinicopathologic Characteristics of Hepatocellular Carcinoma with Extrahepatic Malignancy.
Dongho CHOI ; Hanjoon KIM ; Kyeong Geun LEE ; Hwon Kyum PARK ; Oh Jung KWON ; Kwang Soo LEE
Journal of the Korean Surgical Society 2003;64(6):487-492
PURPOSE: Multiple primary cancers are not a rare disease. The clinicopathologic characteristics of a hepatocellular carcinoma with extrahepatic malignancies, have not been identified. To address these points, the clinical data of patients with a hepatocellular carcinoma, with extrahepatic malignancies, treated with surgical resections at our hospital, were retrospectively reviewed. METHODS: We reviewed the clinical records of ten hepatocellular carcinoma patients, with extrahepatic malignancies, who had undergone an operation between January, 1986 and December, 2002 at the Hanyang University Hospital. RESULTS: 10 patients were comprised of 9 males and 1 female, with a mean age of 58.6 years, ranging from 34 to 75. There were 9 stomach cancers and 1 rectal cancer extrahepatic malignancies associated with the hepatocellular carcinomas. Four of these were synchronous type and six were metachronous type. The treatments used for the HCCs were: 1 extended right lobectomy, 6 right lobectomies, 1 each of a TAE with RFTA, a segmentectomy with RFTA, and a segmentectomy. The operations for the extrahepatic malignancies included 1 low anterior resection, for the rectal cancer and 9 subtotal gastrectomies, for the stomach cancers. During the mean follow up time of 66.1 months, five patients survived and five died. CONCLUSION: Patients who have a hepatocellular carcinoma, associated with extrahepatic malignancies, have been treated with aggressive operations and combination therapies. Stomach cancer is the most common extrahepatic malignancy associated with a hepatocellular carcinoma.
Carcinoma, Hepatocellular*
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Female
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Follow-Up Studies
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Gastrectomy
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Humans
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Male
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Mastectomy, Segmental
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Rare Diseases
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Rectal Neoplasms
;
Retrospective Studies
;
Stomach Neoplasms
4.Trends of Intentional Poisoning: A Retrospective Single Center Study During 15 Years.
Sung Kyu KONG ; Sang Hoon OH ; Kyu Nam PARK ; Han Joon KIM
Journal of The Korean Society of Clinical Toxicology 2016;14(1):47-53
PURPOSE: Intentional poisoning is a major public health issue in many parts of the world. This study was conducted to provide details regarding the epidemiology of intentional poisoning in a metropolitan emergency department and to identify the changing patterns and epidemiology of poisoning. METHODS: A retrospective study was conducted to evaluate intentional poisoning of patients who visited the emergency department in a tertiary teaching hospital between 2001 and 2015. All intentional poisoning-related emergency department visits over three five year periods (2001-2005 (P1), 2006-2010 (P2) and 2011-2015 (P3)) were reviewed to investigate trends in intentional poisoning patients. Information regarding patient sex, age, time from episode to admission, psychiatric history, type of intoxicants, alcohol co-ingestion, gastric lavage, charcoal administration, any previous suicide attempts, need for hospitalization and death before discharge was reviewed. RESULTS: A total of 1269 patients were enrolled in this study. The number of patients admitted during each period was P1=515, P2=439 and P3=315. Comparison of the three groups revealed significant differences according to age (p<0.001), psychiatric history (p<0.001), alcohol co-ingestion (p=0.013), gastric lavage (p<0.001), charcoal administration (p<0.001), need for hospitalization (p=0.044), repeated attempt (p<0.001) and type of intoxicants (p<0.001). CONCLUSION: The average age of intentional poisoning patients has increased. While the use of sedatives and multiple drugs increased, the use of pesticides and the antihistamine decreased.
Charcoal
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Emergency Service, Hospital
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Epidemiology
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Gastric Lavage
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Hospitalization
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Hospitals, Teaching
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Humans
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Hypnotics and Sedatives
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Pesticides
;
Poisoning*
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Public Health
;
Retrospective Studies*
;
Suicide
5.Trends of Intentional Poisoning: A Retrospective Single Center Study During 15 Years.
Sung Kyu KONG ; Sang Hoon OH ; Kyu Nam PARK ; Han Joon KIM
Journal of The Korean Society of Clinical Toxicology 2016;14(1):47-53
PURPOSE: Intentional poisoning is a major public health issue in many parts of the world. This study was conducted to provide details regarding the epidemiology of intentional poisoning in a metropolitan emergency department and to identify the changing patterns and epidemiology of poisoning. METHODS: A retrospective study was conducted to evaluate intentional poisoning of patients who visited the emergency department in a tertiary teaching hospital between 2001 and 2015. All intentional poisoning-related emergency department visits over three five year periods (2001-2005 (P1), 2006-2010 (P2) and 2011-2015 (P3)) were reviewed to investigate trends in intentional poisoning patients. Information regarding patient sex, age, time from episode to admission, psychiatric history, type of intoxicants, alcohol co-ingestion, gastric lavage, charcoal administration, any previous suicide attempts, need for hospitalization and death before discharge was reviewed. RESULTS: A total of 1269 patients were enrolled in this study. The number of patients admitted during each period was P1=515, P2=439 and P3=315. Comparison of the three groups revealed significant differences according to age (p<0.001), psychiatric history (p<0.001), alcohol co-ingestion (p=0.013), gastric lavage (p<0.001), charcoal administration (p<0.001), need for hospitalization (p=0.044), repeated attempt (p<0.001) and type of intoxicants (p<0.001). CONCLUSION: The average age of intentional poisoning patients has increased. While the use of sedatives and multiple drugs increased, the use of pesticides and the antihistamine decreased.
Charcoal
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Emergency Service, Hospital
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Epidemiology
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Gastric Lavage
;
Hospitalization
;
Hospitals, Teaching
;
Humans
;
Hypnotics and Sedatives
;
Pesticides
;
Poisoning*
;
Public Health
;
Retrospective Studies*
;
Suicide
6.The Benefit of Added Coronal Reformation Images in the MDCT Diagnosis of Acute Appendicitis for Emergency Physicians.
Jeong Ho PARK ; Chun Song YOUN ; Jung Hee WEE ; Ji Hoon KIM ; Yung Min KIM ; Seung Pill CHOI ; Kyu Nam PARK ; Han Joon KIM
Journal of the Korean Society of Emergency Medicine 2008;19(6):724-730
PURPOSE: We compared diagnostic accuracy using transverse scans and combined transverse and coronal reformation images in the MDCT diagnosis of acute appendicitis. METHODS: MDCT was performed in 100 patients with acute non-traumatic abdominal pain who visited the emergency department. One half was diagnosed acute appendicitis by radiologic and histologic findings and the other half was not. Transverse scan and combined transverse and coronal reformation images were interpreted by six emergency physicians. Emergency physicians included two board physicians, two senior residents, and two junior residents. For comparison of diagnostic value, the chi-square test and cross tabs test were done. RESULTS: For all emergency physicians except one senior resident, the added coronal reformation images tended to increase the diagnostic accuracy. For board physicians, it increased the diagnostic accuracy from 81.5% to 91% (p=0.003). Senior residents increased from 82.5% to 91.5% (p=0.005), junior residents increased from 75.5% to 87% (p=0.002). The diagnostic accuracy of board physicians and senior residents were higher than junior residents for both image types. CONCLUSION: Coronal reformation images improve the accuracy of emergency physicians in the MDCT diagnosis of acute appendicitis.
Abdominal Pain
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Appendicitis
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Emergencies
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Humans
7.Hepatocyte Transplantation Using Fibrin Gel.
Dongho CHOI ; So Jung GWAK ; Hanjoon KIM ; Kyeong Geun LEE ; Seung Sam PAIK ; Doo Jin PAIK ; Hwon Kyum PARK ; Oh Jung KWON ; Byung Soo KIM ; Kwang Soo LEE
The Journal of the Korean Society for Transplantation 2003;17(1):20-25
PURPOSE: Whole liver transplantation, an effective therapy for many inherited and acquired hepatic disorders, has limitations including donor shortage and fatal surgical complications. Hepatocyte transplantation, which is simpler and less expensive than whole liver transplantation, allows the use of living related donors, permits the use of a single donor organ for multiple recipients, and makes possible the cryopreservation of hepatocytes for future use. However, choosing a proper scaffold for hepatocyte transplantation hampers wide use of hepatocyte transplantation. We performed hepatocyte transplantation using fibrin gel, as a cell transplantation scaffold and evaluated their effectiveness. METHODS: Female, five week old FVB mice, were prepared for donors, and two male, five week old nude mice, were used as recipients. Liver cells were isolated from FVB donors. The cell viability exceeded 95% as assessed by the trypan blue exclusion method. For three nude mice, 5x10(6) cells resuspended in 500microliter of fibrinogen were mixed with 500microliter thrombin, and were injected into the peritoneal cavity of each mouse. One nude mouse was transplanted with 5x10(6) cells resuspended in 500 microliter medium, which served as a negative control. Specimens were retrieved at one week, and histological and immunohistochemical analyses wereperformed. RESULTS: In the negative control, all transplanted hepatocytes disappeared at one week. In mice transplanted both fibrin gel and hepatocytes, conglomerates containing hepatocytes were observed on the intestinal mesentery. The hepatocytes were identified by H & E staining and immunohistochemistry using anti-hepatocyte antibody. Functional activity was evaluated with PAS staining. CONCLUSION: In this preliminary study, stable hepatocyte engraftment was achieved in hepatocyte transplantation with fibrin gel, but not in hepatocyte transplantation without scaffold. More studies on comparison between fibrin gel and injectable scaffolds would be necessary. Improvement on both initial vascularization and proliferation of transplanted hepatocytes is a target of our future work.
Animals
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Cell Survival
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Cell Transplantation
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Cryopreservation
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Female
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Fibrin*
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Fibrinogen
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Hepatocytes*
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Humans
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Immunohistochemistry
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Liver
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Liver Transplantation
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Male
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Mesentery
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Mice
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Mice, Nude
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Peritoneal Cavity
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Thrombin
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Tissue Donors
;
Transplants
;
Trypan Blue
8.Epidemiologic Study of Poisoned Patients Who Presented to the Emergency Department of a High end Medical Facility in Seoul 1998~2009.
Jae Hoon LEE ; Sang Hoon OH ; Kyu Nam PARK ; Chun Song YOUN ; Soo Hyun KIM ; Won Jung JEONG ; Han Joon KIM
Journal of The Korean Society of Clinical Toxicology 2010;8(1):7-15
PURPOSE: There are an insignificant number of studies done on the demographics of intoxication patients and on the characteristics of toxic exposure on a long term basis in Korea. The objective of our survey is to investigate the epidemiologic characteristics of intoxication in a metropolitan emergency department in order to more efficiently manage intoxication patients. METHODS: We retrospectively reviewed the medical records of intoxication patients who visited the emergency department of a high end medical facility between January, 1998 and June, 2009. We investigated the trend of the substances people became intoxicated with during the study period and we analyzed the age, gender, year and distribution of patients and the outcome of the patients. RESULTS: There were 1544 cases of intoxication during the study period, and the cases made up 0.37% of the total visitors to our emergency department, which is a high end medical facility located in the city. Most of the patients were female (70%) in their twenties and thirties. The most commonly ingested intoxication substances were sedatives, analgesics and pesticides. Unlike in the province, antidepressant abuse is on the rise while pesticide abuse is falling. The overall admission rate was 24.8% and the mortality rate was 1.6%. Pesticides intoxication was the most common cause of death (76%). Pesticides intoxication, a male gender and old age were the most significant fatality-related factors. CONCLUSION: We think that there is a need to investigate the actual conditions of drug intoxication in the city and prepare measures to prevent drug intoxication.
Analgesics
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Cause of Death
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Demography
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Emergencies
;
Epidemiologic Studies
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Female
;
Humans
;
Hypnotics and Sedatives
;
Korea
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Male
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Medical Records
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Pesticides
;
Retrospective Studies
;
Suicide