1.Standardized Database of 12-Lead Electrocardiograms with a Common Standard for the Promotion of Cardiovascular Research: KURIAS-ECG
Hakje YOO ; Yunjin YUM ; Soo Wan PARK ; Jeong Moon LEE ; Moonjoung JANG ; Yoojoong KIM ; Jong-Ho KIM ; Hyun-Joon PARK ; Kap Su HAN ; Jae Hyoung PARK ; Hyung Joon JOO
Healthcare Informatics Research 2023;29(2):132-144
Objectives:
Electrocardiography (ECG)-based diagnosis by experts cannot maintain uniform quality because individual differences may occur. Previous public databases can be used for clinical studies, but there is no common standard that would allow databases to be combined. For this reason, it is difficult to conduct research that derives results by combining databases. Recent commercial ECG machines offer diagnoses similar to those of a physician. Therefore, the purpose of this study was to construct a standardized ECG database using computerized diagnoses.
Methods:
The constructed database was standardized using Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) and Observational Medical Outcomes Partnership–common data model (OMOP-CDM), and data were then categorized into 10 groups based on the Minnesota classification. In addition, to extract high-quality waveforms, poor-quality ECGs were removed, and database bias was minimized by extracting at least 2,000 cases for each group. To check database quality, the difference in baseline displacement according to whether poor ECGs were removed was analyzed, and the usefulness of the database was verified with seven classification models using waveforms.
Results:
The standardized KURIAS-ECG database consists of high-quality ECGs from 13,862 patients, with about 20,000 data points, making it possible to obtain more than 2,000 for each Minnesota classification. An artificial intelligence classification model using the data extracted through SNOMED-CT showed an average accuracy of 88.03%.
Conclusions
The KURIAS-ECG database contains standardized ECG data extracted from various machines. The proposed protocol should promote cardiovascular disease research using big data and artificial intelligence.
2.Two cases of spontaneous pregnancy in women with premature ovarian failure: Case report.
Soo Kyung LEE ; Bo Sun JOO ; Sung Eun MOON ; Sang Kap KIM ; Ja Sung KOO ; Hwa Sook MOON
Korean Journal of Obstetrics and Gynecology 2007;50(11):1558-1562
Premature ovarian failure (POF) is a syndrome defined as hypergonadotropic hypogonadism associated with amenorrhea, oligomenorrhea or other forms of menstrual irregularity for at least 3 consecutive months before the age of 40. The management of POF is approached by HRT, emotional support and infertility treatment. Women with premature ovarian failure who desire to become pregnant are best treated by assisted reproductive technology with donor oocyte. However, POF has the possibility of a 5-10% spontaneous pregnancy. The physician should recommend the patient to consult with their physician if they have any symptoms of pregnancy or no withdrawal bleeding after HRT. Therefore we report two cases of spontaneous pregnancies in women with premature ovarian failure.
Amenorrhea
;
Female
;
Hemorrhage
;
Humans
;
Hypogonadism
;
Infertility
;
Oligomenorrhea
;
Oocytes
;
Pregnancy*
;
Primary Ovarian Insufficiency*
;
Reproductive Techniques, Assisted
;
Tissue Donors
3.Latzko operation for early correction of vesicovaginal fistula complicated after total abdominal hysterectomy: 2 cases.
Eun Young PARK ; Young Rok JOE ; Soo Hong KIM ; Tae Yong KIM ; Sang Kap KIM ; Hwa Sook MOON
Korean Journal of Obstetrics and Gynecology 2005;48(1):234-239
Recently vesicovaginal fistula is rare, but infrequently is found after pelvic surgery especially total hysterectomy for benign gynecologic diseases. In general, the correction of vesicovaginal fistula has been performed 3-4 months after the diagnosis. Recently, earlier correction of fistula was challenged. It has been reported that Latzko operation is a simple effective method for easy correction of vesicovaginal fistula in early correction. We experienced two successful cases of Latzko operation, which were performed as early as day 25 and 31 postoperatively.
Diagnosis
;
Female
;
Fistula
;
Genital Diseases, Female
;
Hysterectomy*
;
Vesicovaginal Fistula*
4.Preliminary Clinical Experience of Anterior Cervical Interbody Fusion with the AMSLU(TM) Cage.
Sung Bum AHN ; Jung keun SUH ; Soo Hyeon MOON ; Hoon Kap LEE ; Yong Gu CHUNG
Journal of Korean Neurosurgical Society 2004;35(5):487-491
OBJECTIVE: The authors investigate the effectiveness and the demerits of the AMSLU(TM) cervical cage used in cervical spinal fusion for correction of cervical degenerative disc disease. METHODS: A total of 19 patients with cervical degenerative disc disease underwent anterior microdiscectomy and the AMSLU(TM) cage fusion. We made a retrospective comparative analysis between cases using the AMSLU(TM) cage and the classical autogenous iliac crest graft(AICG) with plate fixation about operative time, blood loss and hospital stay. The patient's neurological and functional outcomes were assessed on the basis of the modified Odom's criteria. RESULTS: The use of the AMSLU(TM) cage was found to save operative time(mean, 153+/-52min: P=0.004) and blood loss(mean, 236+/-171cc: P=0.032) as compared with the use of AICG. There was no donor-site complications and all patients were tolerable to ambulation at 1 day postoperatively. The patient's clinical success rate was 89% on discharge and 84% at 6 months postoperatively. CONCLUSION: The use of the AMSLU(TM) cage provides several advantages: no donor-site complications, brief instrument procedures, short operative time, small amount of blood loss and satisfactory clinical success rate. But it also has many limitations: short follow up period, kyphotic change and subsidence. Further investigations and clinical applications are necessary to use AMSLU(TM) cage in cases of spondylolisthesis and traumatic cervical disease.
Follow-Up Studies
;
Humans
;
Length of Stay
;
Operative Time
;
Retrospective Studies
;
Spinal Fusion
;
Spondylolisthesis
;
Walking
6.Paraspinal Retroperitoneal Ganlioneuroma.
Taek Hyun KWON ; Soo Hyun MOON ; Ja Kyu LEE ; Youn Kwan PARK ; Heung Seob CHUNG ; Hoon Kap LEE ; Jung Keun SUH
Journal of Korean Neurosurgical Society 1999;28(3):414-416
Ganglioneuroma is a rare benign neurogenic tumor arising from sympathetic ganglia. A case of paraspinal retro-peritoneal ganglioneuroma in a 39-year-old woman is described here. The patient underwent surgery with gross total removal of the tumor and relief of her initial chief complaint of backache and leg pain. We review the literature and discuss the clinical features and the histogenesis of ganglioneuroma.
Adult
;
Back Pain
;
Female
;
Ganglia, Sympathetic
;
Ganglioneuroma
;
Humans
;
Leg
7.Intracranial Aneurysm Associated with Moyamoya Disease.
Taek Hyun KWON ; Soo Hyeon MOON ; Dong Jun LIM ; Youn Kwan PARK ; Heung Seob CHUNG ; Hoon Kap LEE ; Jung Keun SUH
Journal of Korean Neurosurgical Society 1999;28(11):1661-1665
It is well known that moyamoya disease is often accompanied by an intracranial aneurysm. We present 3 patients, among total 40 patients with moyamoya disease over a recent 4-year period, in whom moyamoya disease and an intracranial saccular aneurysm were discovered simultaneously. In 2 of the 3 patients, the aneurysms were occluded endovascularly by Guglielmi detachable coils(GDC). Here, with review of pertinent literature, we discuss the clinical characteristics of an intracranial aneurysm associated with moyamoya disease and the benefits and drawbacks between two therapeutic options- direct surgery and endovascular treatment.
Aneurysm
;
Humans
;
Intracranial Aneurysm*
;
Moyamoya Disease*
8.Depressive tendency in medical inpatients.
Kil AHN ; Kap Soo MOON ; Eun Chul JANG ; Gyu Nam CHO ; Sung Soo KIM ; Moon Gyu PARK
Journal of the Korean Academy of Family Medicine 1998;19(7):549-558
BACKGROUND: Depressive symptoms are common in the medically ill patients although depressive disorders are considerably underdiagnosed and undertreated. Therefore, we examined the characteristics of depressive tendency in medical inpatients. METHODS: The patient group-144 subj.cts(90 males, 54 females) were selected from medical inpatients of Kae Jung hospital. 158 subjects(106 male, 52 females) with no prior history of diseases were selected for the control group. The Beck Depression Inventory(BDI) and Hamilton Rating Scale for Depression(HRSD) was used for both groups from June to December 1997. RESULTS: The patient group had a significant higher BDI and HRSD score than controls(p<0.01). In the patients, 31.3% had scores on the BDI greater than the cutting score of 21, and 26.4% had scores on the HRSD greater than the cutting score of 22. In the patients, demographic and medical variables were evaluated with respect to depression. those in their 60's, with education level of elementary school and below. the divorced, bereaved and separated, and having duration of illness more than one year were statistically more depressed, but depression was not associated with sex, religion and medical diagnosis. CONCLUSIONS: This study indicates that depressive tendency may be a common phenomena in medically ill patients. Therefore, we should suspect depression in the management of these patients.
Depression
;
Depressive Disorder
;
Diagnosis
;
Divorce
;
Education
;
Humans
;
Inpatients*
;
Male
9.A Case of Ganglioneuroma in the Pelvic Cavity.
Yun Kil LEE ; Kyung Jung KANG ; Moon Kap SON ; Hyun Soo KIM ; Tae Hee OH ; Woo Shik CHUNG ; Byung Heon KIM
Korean Journal of Urology 1998;39(3):286-288
We present a case of ganglioneuroma arsing from the sympathetic ganglia in the pelvic cavity.
Ganglia, Sympathetic
;
Ganglioneuroma*
10.A Case of Renal revascularization using Aortorenal Saphenous Vein Bypass Grafting in Renovascular Hypertension.
Moon Kap SON ; Yun Kil LEE ; Ki Woon SON ; Sang Ik LEE ; Hyun Soo KIM ; Tae Hee OH
Korean Journal of Urology 1997;38(4):449-453
Renovascular hypertension is the leading cause of surgically curable arterial hypertension. With the marked advancement in the technique of vascular surgery, renal revascularization is preferred to nephrectomy. It is used for the recovery of impaired function or the prevention of renal failure and the control of hypertension. We report a case of renovascular hypertension with the nonfunction of the left kidney due to complete renal artery obstruction, treated successfully with an aortorenal bypass graft.
Hypertension
;
Hypertension, Renovascular*
;
Kidney
;
Nephrectomy
;
Renal Artery Obstruction
;
Renal Insufficiency
;
Saphenous Vein*
;
Transplants*

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