Reoperation for the Missed Inferior Sinus Venous Atrial Septal Defect / 대한흉부외과학회지

Inferior sinus venosus ASD (atrial septal defect) is a rare congenital cardiac deformity, that occurs on between the inferior vena cava and right atrium. Diagnosis of inferior sinus venosus ASD is difficult because of its infero-posterior location of the fossa ovalis. Therefor, exact anatomical diagnosis by preoperative and intraoperative transesophageal echocardiography is necessary at preoperation and during the operation. We present a case of residual ASD, which was diagnosed secundum ASD and repaired when the patient was 10 years old. Residual ASD was diagnosed by cardiac echocardiography in preparation of otorhinolaryngology operation. Therefore, reoperation of residual ASD was done when the patient was 24 years old. The patient had secundum ASD and inferior sinus venosus ASD, but in the prior operation, inferior sinus venosus ASD wasn't found and only secundum ASD was repaired. In reoperation, inferior sinus venosus ASD was reveled and patch closure was done.

Risk Factors Affecting the Mortality of Acute Myocardial Infarction during the First 24 Hour after Onset

BACKGROUND: Recently, the incidence of acute myocardial infaction has been gradually increasing as prolongation of life spans and improvements of diet and life styles in Korea. The rate of mortality and sudden death is higher than other diseases. The purpose of this study is to evaluate factors which can affect on the mortality of AMI during initial 24 hrs. METHODS: A retrospective clinical study was done on 364 consecutive patients with AMI who had been presented to Keimyung University Dong-sang Medical Center from January 1990 to May 1997(M:F ratio=254:110). The subjects were divided two groups. The Group I was patients who had expired during the initial 24hrs period of AMI(47 patients, 13%), the Group II was patients who had survived(317 patients, 87%). We compared clinical features, EKG, laboratory results in both groups and tried to analyse the vulnarable factors. RESULTS: The results were as follows; 1) The mean age in Group I (64.4 yearly) was older than in Group II(61.3 yearly) and female gender was also higher in Group I. The mean systolic/diastolic blood pressures of the Group I(103/61mmHg) were lower than those of the Group II(123/75mmHg). 2) The chest pain and mental change were noted more frequently in Group I than in Group II and the dyspnea was less frequent in Group I than Group II. 3) The higher grades of Killip classification was significantly more frequent in Group I than in Group II. 4) The mean onset to drug time for thrombolytics in Group I and Group II were 14.1 hrs and 6.6 hrs. 5) The mortality rate of the Group I and the Group II were respectively 13%, 6.6%. The most common causes of death were cardiogenic shock and ventricular arrhythmia. CONCLUSION: The mortality rate of initial 24 hrs of onset as form of sudden death was higher than post-24hrs group(66.2%). The factors for the higher mortality group were old age and female gender, and they were unstable in vital signs, higher Killip classifications. Therefore, these groups demand more rapid and aggressive approach than the other groups.

Pelvic Fracture Classification, Associated Injury and Hemodynamic Change

In general, pelvic fracture carries higher mortality especially from motor veicle accident, we have retrospectively reviewed charts and radiographs of 185 patients in order to identify clinical fading, kinds of fracture, hemodynamic changes and associated injuries in patients with pelvic fractures. We attempted to classify pelvic fractures according Young classification. The following results were obtained; 1. On age and sex distribution, the pelvic fractures showed peak incidence between 2nd decade and 5th decade. Male was affected more frequently than female, the ratio being male to female, 2.6 to 1. 2. The mechamisn of injury was motor veicle accident in 155(83.8%), fall in 25(13.5%), others in 5(2.7%). 3. The associated injuries of pelvic fractures: extremity, thoracic, urinary system, intraperitoneal and head injury. 4. Of the 185 cases of the pelvic fractures, simple pelvic fractures are 101 cases(54.6%), lateral compression in 39(21.1%), anteroposterior compression in 18(9.7%), vertical shearing in 17(9.2%), mixed pattern in 10(5.4%). 5. Retroperitoneal hematoma and urinary tracts injuries were the most common associated in mixed pattern. 6. The incidence of hemodynamically unstable fractures were 19.8% in simple pelvic fracture but, as expected was higher in major pelvic ring disruptions except to acetabular fracture(52.4%). 7. Mortality rates were 5.9% in all pelvic fractures but 10.7% in major pelvic ring disruptions except to acetabular fractures. Prognostic factor in pelvic fractures were the amount of hemorrhage and associated injuries, therefore early diagnosis and managements are essential to reduce the mortality in pelvic fracture.