With the advance of the techniques of echocardiography and cardiovascular surgery, early detection and successful cardiovascular surgery of congenital heart disease is possible in infant as well as in child. And with the advance of the social insurance, the new case of adult congenital heart disease with mild cardiovascular symptom or frank symptom of the pulmonary hypertension is decreasing. We statistically analyze the new case of adult congenital heart disease.

92 patients who were diagnosed to congenital heart disease by echocardiography from January 1993 to June 1998 were studied. 2.25 MHz probe for two-dimensional and Doppler echocardiography and biplane 5 MHz phased-array probe for transesophageal echocardiography(Ultramark-9) were used.

Among 92 patients, 45 patients(48.9%) were male and 47 patients(51.1%) were female and 6 patients(male : 2, female : 4) had multiple congenital heart disease. 61 patients(66.3%) had no definitive cardiovascular symptom and right bundle branch block was most common electrocardiographic abnormality. 32 cases(32.8%) were atrial septal defect, 21 cases(21.5%) ventricular septal defect, 12 cases(12.3%) patent ductus arteriosus, 8 cases(8.2%) congenial bicuspid aortic valve and so on. Female predominance was noted in ventricular septal defect and endocardial septal defect, while male predominance in bicuspid aortic valve and discrete subaortic stenosis. Atrial septal defect and patent ductus arteriosus were no sex difference. 23 cases(25.0%) were between 20 29, 17 cases(18.5%) between 15-19, and 2 cases(2.2%) over 70 years old.

Our analysis shows similarity to previous report. With advance of the technique of echocardiography and cardiovascular surgery, a few new case of adult congenital heart disease can be diagnosed hereafter.