Identification of Cardiovascular Disease Based on Echocardiography and Electrocardiogram Data Using the Decision Tree Classification Approach

Tb Ai Munandar,Sumiati,Vidila Rosalina International Journal of Computer ScienceNetwork S 2023 International journal of computer science and netw Vol.23 No.9

For a doctor, diagnosing a patient's heart disease is not easy. It takes the ability and experience with high flying hours to be able to accurately diagnose the type of patient's heart disease based on the existing factors in the patient. Several studies have been carried out to develop tools to identify types of heart disease in patients. However, most only focus on the results of patient answers and lab results, the rest use only echocardiography data or electrocardiogram results. This research was conducted to test how accurate the results of the classification of heart disease by using two medical data, namely echocardiography and electrocardiogram. Three treatments were applied to the two medical data and analyzed using the decision tree approach. The first treatment was to build a classification model for types of heart disease based on echocardiography and electrocardiogram data, the second treatment only used echocardiography data and the third treatment only used electrocardiogram data. The results showed that the classification of types of heart disease in the first treatment had a higher level of accuracy than the second and third treatments. The accuracy level for the first, second and third treatment were 78.95%, 73.69% and 50%, respectively. This shows that in order to diagnose the type of patient's heart disease, it is advisable to look at the records of both the patient's medical data (echocardiography and electrocardiogram) to get an accurate level of diagnosis results that can be accounted for.

태아 Hb의 Ascorbin 산에 의한 분해

송태복(TB Song),황경진(KJ Hwang),문병갑(BK Moon) 대한산부인과학회 1981 Obstetrics & Gynecology Science Vol.24 No.11

Fetal hemoglobin (Hb F) was more markedly and rapidly broken by ascorbate and hydrogen peroxide, which was enzymatically generated, than adult hemoglobin (Hb A) . Adenosine triphosphate accelerated the hemoglobin degenerative action of ascorbic acid, but the effect of ATP was more marked in Hb A than in Hb F. The oxidation of oxyhemoglobin to methemoglobin by ferricyanide proceeded more rapidly in Hb F than in Hb A, while the oxidation rate of Hb by ascorbate and enzymatically generated hydrogen was not different between Hb F and Hb A. The results suggested that the faster breakdown rate of fetal hemoglobin by ascorbate is another characteristic of fetal hemoglobin which is resulting from its subunit difference from that of adult hemoglobin.

초음파유도하 경피적 태아 제대혈채취의 이용

송태복(TB Song),이계율(GY Lee),김윤하(YH Kim) 대한산부인과학회 1995 Obstetrics & Gynecology Science Vol.38 No.5

1993년 1월부터 1994년 8월까지 1년 8개월동안 전남대학교병원 산부인과에서 임신 21주에서 41주사이의 산모 50명을 연구대상을하여 50회의 초음파유도하 경피적 태아 제대혈채취 (PUBS)를 시행하여 다음과 같은결과를 얻었다. 1. 50명중 49명에서 성공하여 98%의 성공률을 보였다. 2. PUBS의 적응증을 보면 자궁내 태아발육지연 9예, 산모 혈소판 감소증 6예, 태아 신장이 상 6예, 수두증 4예, 양수과다증 4예, 비면역성 태아수종 2예, 태아복수 5예 등이었다. 3. PUBS시행시 임신주수를 보면 임신 26-30주가 18예(23%)로 가장 많았고 31-35주가 13예 (26%), 36-41주가 10예(20%), 21-25주 9예(18%)의 순이었다. 4. 주사침의 천자시도를 1회로 성공하었던 경우는 22예(44.9%), 2회 16예(32.7%), 3회 7예 (14.3%), 4회 3예(6.1%), 그리고 5회 시도후 성공했던 경우가 1예(2.0%)이었다. 5. 제대 천자부위를 보면 떠있는 제대를 이용했던 경우가 23예(46%)로 가장 많았고 태반 기 시부위 3cm이나개 16예(32%), 태반을 통해 바로 제대기시부로 천자했던 경우가 10예(20%), 태아복벽 3cm 이내가 1예(2%)이었다. 6. 성공적으로 천자가 되었던 49예에서 주사침을 산모복부를 통해 제대혈관에 성공적으로 넣을 때 까지 소요된 시간을 보면 3분미만이 20예(40.8%), 3분이상 6분미만이 11예(22.5%), 6 분이상 10분미만 2예(4.1%), 10분이상 30분미만 11예(22.5%),그리고 30분이상이 5예(10.2%)이 었다. 7. PUBS의 합병증으로 제대출혈 33예(66%), 조기진통 2예(4%), 태아서맥 4예(8%), 태아빈맥 1예(2%)가 발생하였으며 PUBS에 따른 자궁내 태아사망이나 조기분만은 없었다. 결론적으로 태아의 혈액채취는 숙련된 산과의사에 의해 시행될 때 높은 성공률과 더불어 비 교적 안전한 검사로서 선천성 이상의 산전 진단영역을 크게 넓혀 줄 수 있는 검사라고 사료 된다. Percutaneous umbilical blood sampling (PUBS) has become an important diagnostic tool in the evaluation of fetal status. Although fetal bradycardia and uterine irritability are recongnized transient side effects of PUBS, serious complications such as fetal death appear to be quite uncommon. This study was undertaken in 50cases of PUBS performed between 21 and 41 gestational weeks at Chonnam University hospital from January 1993 to August 1994. Primary indications for PUBS included intrauterine fetal growth retardation, maternal thrombocytopenia, fetal renal disease ,fetal ventriculomegaly, hydramnios, nonimmune hydrops fetalis, fetal ascites, fetal pleural effusion, single umbilical artery, etc. PUBS was successfully performed in 49 cases (98%) among 50 procedures. The first atte mpt was successful in 22 cases (44.9%) and 45 cases (91.9%) succeeded within three attempts. The site of cord puncture were floating cord (46%), near the placental insertion(32%), base of the cord (20%), and near the fetal insertion(2%). Bleeding from the cord after needle removal was occurred in 66% and it persisted for longer than 1 minute in 20% of all cases. Four cases of fetal bradycardia, one case of fetal tachycardia, and two cases of preterm labor which were controlled by ritodrine were occurred. There was no procedure-related preterm delivery or fetal death. In conclusion, PUBS is safe and very useful procedure in the evaluation of fetal status when performed by experienced perinatologists with high success rate.

A Stabilizing Agent, PCA/DTPA, Improves Plasma Storage Life for the Chromsystems Vitamin C Assay up to Six Months

Collie Jake TB,Hudson Elizabeth P,Deane Adam M,Bellomo Rinaldo,Greaves Ronda F 대한진단검사의학회 2021 Annals of Laboratory Medicine Vol.41 No.4

The commonly used Chromsystems vitamin C (ascorbate) assay (Munich, Germany) has a sample storage life of five days at –20°C. Stabilizing agents have been successfully used to increase longevity; however, their suitability with this commercial assay is unclear. We investigated the compatibility of a stabilizing agent, perchloric acid/diethylenetriaminepentaacetic acid (PCA/DTPA), with the Chromsystems assay. Plasma was stored at –80°C, with or without PCA/DTPA. Storage up to six months was assessed through baseline and repeat analyses, stability was assessed by comparing paired non-stabilized and PCA/DTPA-stabilized plasma, and performance was assessed using allowable performance specifications of an external quality assurance program. Ascorbate concentration was significantly lower in non-stabilized plasma than in paired PCA/DTPA-stabilized plasma, with a proportional difference of 11% (P=0.01). All storage analysis results were within the allowable performance specifications. Storage at –80°C prevented plasma ascorbate oxidation; however, substantial oxidation occurred during sample processing. In conclusion, PCA/DTPA significantly reduces ascorbate oxidation, and PCA/DTPA-stabilized ascorbate plasma is compatible with the Chromsystems assay and stable for up to six months, when stored at –80°C.

Augmenting in vitro osteogenesis of a glycine–arginine–glycine–aspartic-conjugated oxidized alginate–gelatin–biphasic calcium phosphate hydrogel composite and in vivo bone biogenesis through stem cell delivery

Linh, Nguyen TB,Paul, Kallyanashis,Kim, Boram,Lee, Byong-Taek SAGE Publications 2016 Journal of biomaterials applications Vol.31 No.5

초음파로 진단된 태아 심종양 2 례

송태복,이지영,김석모 대한산부인과학회 1997 Obstetrics & Gynecology Science Vol.40 No.9

Primary tumors of the heart are rare in infancy and childhood and are most often benign. The most common cardiac tumors are rhabdomyoma, fibroma, and myxoma. Rhabdomyomas occur as single or usually multiple nodules embedded in chamber walls. They may remain clinically unimportant or even regress but also cause mechanical obstruction, heart failure, or arrhythmias. It is generally accepted that 50% of cardiac rhabdomyoma are associated with tuberous sclerosis. We experienced two cases of fetal cardiac tumor which were detected by prenatal ultra sound. One case was multiple cardiac rhabdomyomas diagnosed in 37 weeks of gestation. After birth, brain MRI was performed and tuberous sclerosis was diagnosed. The other case was 1.2 cm sized single hyperechoic mass in the left ventricle. Postnatal echocardiography confirmed the prenatal diagnosis.

Thoracic Ectopia Cordis의 산전진단 1 예

송태복,윤영돈,조용훈,오영현,오봉석 대한산부인과학회 1992 Obstetrics & Gynecology Science Vol.35 No.7

저자들은 임신 25주에 real-time 초음파검사에 의해 태아 흉부 심장전이를 진단하여 임신중절한 후 부검에 의해 하부 흉골열 및 하부 전 흉벽 결손, 상복부 제류, 전측 횡경막결손, 전측 심막결손, 그리고 DORV와 심실증격 결손의 심장기형을 확인했던 매우 희귀한 태아 심장전이 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Ectopia cordis means that heart is partially or totally outside the thorax. There are essentially four types of ectopia cordis: central, thoracic, thoracoabdominal, and abdomial. Associated intrathoracic anomalies are common. Death occurs in the first day of life in majority of instances, usually from infection, cardiac failure, or hypoxemia. the sternum is split and the heart protrudes outside the chest in the thoracic form of ectopia cofdis. We present a case of thoracic ectopia cordis which was diagnosed at 25 weeks` gestation by ultrasonography with a brief review of literature.

출생 후 심박조율기 이식에 의해 교정된 태아 완전 심방실 차단 1 예

송태복,김윤하,이지영,김은경,오봉석,이현수 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.7

저자들은 임신 29주에 태아 완전 심방실 차단을 진단하고 만기까지 임신을 유지한 후 제왕절개분만하고, 생후 7일째 영구적 심박조율기를 성공적으로 이식하여 정상 심박동을 보인 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Congenital complete atrioventricular block is an uncommon congenital lesion, occuring in about 1 of 20,000 newborns. Most of complete atrioventricular block without additional structural heart defects were born to mothers who had either manifested connective tissue disease or tested positive for anti-Ro (SS-A) antibodies. Previously, this diagnosis was usually made after birth. Because fetal arrhythmias can now be evaluated prenatally by two-dimensional and M-mode echocardiographic and Doppler ultrasound techniques, complete atrioventricular block is more frequently identified during the fetal period. The natural history and in utero management of congenital complete atrioventricular block is not well documented. We have experienced a case of congenital complete atrioventricular block without associated anomaly followed by successful implantation of cardiac pacemaker at the 7th day of life and presented this case with a brief review of the literatures.

어떻게 제왕절개수술의 빈도를 감소시킬 것인가?

송태복 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.1

조기분만진통의 원인적 인자

송태복 대한산부인과학회 1992 Obstetrics & Gynecology Science Vol.35 No.5

조기진통의 예방 및 치료에 대한 많은 임상적 진전이 있었음에도 불구하고 아직도 조산은 전체 분만의 약 5∼10%이며 선천성기형을 제외한 전체 주산기 사망 및 이환의 2/3를 차지하고 있는 바, 조산과 그에 의한 합병증을 예방하는 것은 산과의사가 해야할 가장 중요한 일중의 하나이다. 조산의 직접적 원인 즉 조기진통,조기파막, 산모 합병증 및 태아곤란 등에 대해서는 많이 조사되었다. 또한 조산의 역학적 및 내과적 위험인자에 대해서도 잘 알려져 있다. 그러나 대부분의 위험인자들은 교정하거나 예방하기 어려우며 역학적 위험인자와 조산사이의 관계는 때로 분명하지가 않다. 이의 효과적인 예방 및 치료를 위해서는 조산의 위험이 있는 산모의 조기진단과 환자에 대한 충분한 교육, 자주 내원하게 하여 자궁경관 상태의 평가, 자궁수축에 대한 조사 및 조기진통시 조기치료를 함과 더불어 분만유발을 신호하는 복합적인 생화학적, 내분비학적 상호관계에 대한 광범위한 기초적 연구, 감염 또는 면역학적 요인과 조기진통 및 조기파막과의 관계에 대한 보다 많은 연구가 있어야 할 것으로 사료된다.