1.Comparative Study of Prolonged Preservation Methods in Rabbit Heart for Transplantation.
Hyung Gon JO ; Su Hyeun KIM ; Song Myung KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(1):1-10
The successful cardiac transplantation depends partly on the donor heart preservation by a solution that will ensure recovery of myocardial function. The purpose of this study was to perform the evaluation of various preservation solutions and to accumulate the data on the requisites for ideal preservation solution. The experimental setup was the constant pressure Langendorff's perfusion system. Isolated rabbit hearts were perfused for 20minutes with warm Krebs-Henseleit solution, stored for 4 hours in cold preservation solution after cardioplegia, and then were reperfused for 20minutes. The 4 experimental groups were prepared : Hartmann's solution group (group I, control), modified Euro-collins' solution group (group II, MEC), modified University of Wisconsin group (group III , MUW), and CK solution(made by the author) group (group IV, CK). The parameters for assessing the preservation ability were levels of enzymes in freezed myocardial tissues (lactate, creatine kinase-MB and adenosine deaminase), coronary flow, left ventricular developing pressure and dp/dt. In conclusion, the ability of preservation for isolated rabbit heart was excellent in CK solution and modified University of Wisconsin solution, and poor in modified Euro-collins' solution, compared with Hartmann solution. CK solution has low potassium concentrations(34.2mEq/L) and includes various substrates to be salutary on myocardial preservation. This fact may indicates the necessity of further refinements in selection or composition of electrolytes and substrates.
Adenosine
;
Creatine
;
Electrolytes
;
Heart Arrest, Induced
;
Heart Transplantation
;
Heart*
;
Humans
;
Myocardial Ischemia
;
Perfusion
;
Potassium
;
Tissue Donors
;
Wisconsin
2.Mortality, prognostic factor and cause of death of acute myocardial infarction in Korean patients: single center experience.
Ji Hoon KANG ; Jong Seon PARK ; Jang Won SON ; Hyeun Su JO ; Jun Ho BAE ; Geu Ru HONG ; Dong Gu SHIN ; Young Jo KIM ; Bong Seup SIM
Korean Journal of Medicine 2006;70(1):33-40
BACKGROUND: The number of patients suffering from acute myocardial infarction is on the increase in Korea due to the westernization of life style. Recent improvement of therapeutic stratigies have shown early mortality benefits in acute myocardial infarction. But we don't have data how many patients died and what's the cause of death in these patients. This study aimed to find out the mortality rate, cause of death and it's relevant prognostic factors of myocardial infarction (MI) patients who admitted alive, and to construct a database which will be used to develop a risk stratification strategy for the implementation of new preventive therapeutic modalities, such as implantable cardioverter-defibrillator (ICD). METHODS: Seven hundred and forty two MI patients admitted to our hospital from March, 1999 to August, 2002 were included in this study. The risk factors and survivals were evaluated by medical record searching and telephone survey in these patients. RESULTS: The average age was 64 years-old and 67% was male. During the mean follow up 20.7+/-15.4 months, total 105 cardiac death (14.2%) was occurred and cumulative mortality rate at 1 year and 2 year was 5.69% and 10.80%, respectively. Of the total 129 death, in-hospital death was 68 (cardiac death 48, non-cardiac death 20) and out of hospital death was 60 (cardiac death 57, non-cardiac death 4). When it comes to cause of death, most common cause of cardiac death was malignant arrhythmia. The proportion of malignant arrhythmia in cardiac death was 81.3% and 72% of in-hospital and out of hospital death, respectively. Multivariate analysis showed that old age, low LV ejection fraction and no percutaneous coronary intervention (PCI) treatment were independent risk factors for cardiac mortality. CONCLUSIONS: Myocardial infarction shows still high mortality rate despite the recent development of therapeutic strategy. As post-MI patients with low LVEF or no PCI shows high mortality, the early reperfusion therapy should be encouraged. Additionally, because malignant arrhythmia was one of the most in cause of cardiac death, ICD therapy to prevent sudden cardiac death should be considered in an active manner.
Arrhythmias, Cardiac
;
Cause of Death*
;
Death
;
Death, Sudden, Cardiac
;
Defibrillators, Implantable
;
Follow-Up Studies
;
Humans
;
Korea
;
Life Style
;
Male
;
Medical Records
;
Middle Aged
;
Mortality*
;
Multivariate Analysis
;
Myocardial Infarction*
;
Percutaneous Coronary Intervention
;
Reperfusion
;
Risk Factors
;
Telephone
3.A Case of Prenatally Diagnosed Klippel-Trenaunay-Weber Syndrome.
So Young KWON ; Yun Ah KIM ; Jong Won LEE ; Su Jin KIM ; Kyoung Jin LEE ; Ji Hyeun PARK ; Chang Jo CHUNG
Korean Journal of Perinatology 2003;14(4):416-421
Klippel-Trenaunay-Weber syndrome is a rare sporadically occurring congenital soft tissue anomaly characterized by cutaneous hemangiomata, hemihypertrophy and occasionally arteriovenous malformations(AVMs). No definite genetic defect has been identified. The appearance is a soft tissue mass of an extremity, usually affecting the adjacent trunk, hydrops fetalis, ascites, abdominal hemangiomatous masses, and hepatomegaly. When diagnosed prenatally, the disorder may be severe. Thrombocytopenia due to platelet consumption within the hemangioma and high output cardiac failure may complicate the outcome. Termination of pregnancy can be offered in severe forms, otherwise no alteration of management in expected. The management of newborns is primarily nonoperative, but some may benefit from surgical intervention. We report a case of Klippel-Trenaunay-Weber syndrome diagnosed prenatally by ultrasonogram in the second trimester and subsequently was terminated, with a brief review of literature.
Ascites
;
Blood Platelets
;
Extremities
;
Female
;
Heart Failure
;
Hemangioma
;
Hepatomegaly
;
Humans
;
Hydrops Fetalis
;
Infant, Newborn
;
Klippel-Trenaunay-Weber Syndrome*
;
Pregnancy
;
Pregnancy Trimester, Second
;
Prenatal Diagnosis
;
Thrombocytopenia
;
Ultrasonography