A clinical study was performed on 69 cases of isolated PDA surgically treated at the Department of Thoracic and Cardiovascular surgery of Kyung-Hee University Hospital from Mar. 1986 to Feb. 1994.
@ES Retrospective clinical analysis of these patients were as follows:
@EN 1. 23 males and 46 females ranged in age from 16 days to 49 years. (mean 8.69yrs., sex ratio M:F=1:2).
2. Chief complaints were frequent URI in 44%, dyspnea on exertion in 16%, palpitation in 8%, easy fatigability in 6%, and no subjective symptoms in 26%.
3. On auscultation, typical continuous machinary murmur heard in 84%, and systolic murmur in 16% Lt 2nd or 3rd intercostal space.
4. Simple chest x-ray showed increased pulmonary vascularity in 67%, cardiomegaly in 61%, and within normal limit in 16%.
5. EKG findings were LVH in 42%, biventricular hypertrophy in 17%, RVH in 3%, and within normal limit in 38%.
6. Echocardiogram was performed from all patient, and direct visualization of ductus in 93%.
7. Cardiac catheterization was performed in 39 patients. The mean value of the results were; Differance SaO2(MPA-RV)=11.03*5.26%, Qp/Qs=2.44*1.35, systolic pulmonary arterial pressure=40.69*17.69mmHg.
8. 66 patients were operated through the left posterolateral thoracoctomy; closure of ductus by double ligation in 43 cases, triple libation in 23 cases. 3 patients were operated by simple closure under cardiopulmonary bypass.
9. There was no death associated with the operation. The operative complications were atelectasis in 8 cases, pneumonia in 4 cases recannalization in 2 cases, and hoarseness in one case.
10. Systemic diastolic pressure was increased 8.12*0.13mmHg, and pulse pressure was decreased about 9.52*1.87mmHg.
(Korean J Thoracic Cardiovas Surg 1995;28:136-42)
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