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Results for “Heart Septal Defects”

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PubMed1986

Cardiac septation in atrioventricular canal defect.

To determine the relative contributions of the atrial and ventricular septa to total cardiac septation in patients with atrioventricular (AV) canal defect, two-dimensional echocardiography was used to measure the length of each portion of the septum in 14 patients with partial AV canal and 13 patients with the complete form of this lesion. Results were compared with similar data from 30 normal children, 10 patients with dilated cardiomyopathy and 11 patients with ostium secundum atrial septal defect. In patients with partial AV canal, the portion of total cardiac length occupied by the atrial septum did not differ from normal (24.8 +/- 9.9% versus 28.7 +/- 7.9%, p greater than 0.05), but there was a deficiency of both AV and ventricular septal tissue, the latter occupying only 48.2 +/- 7.0% of total cardiac length (versus 57.9 +/- 4.1% in normal subjects, p less than 0.05). Similarly, patients with complete AV canal had a normal amount of atrial septal tissue, a deficiency of AV septal tissue and a deficiency of ventricular septal tissue which was even greater than that of patients with a partial defect (39.4 +/- 5.0% versus 48.2 +/- 7.0%, p less than 0.05). Thus, although partial AV canal defect is often called ostium primum atrial septal defect, the amount of atrial tissue is usually normal, the defect being formed by a deficiency of AV and ventricular septal tissue. In the complete form of the lesion, the deficiency of ventricular septal tissue is greater.

Adolescent↗
PubMed1977

Down syndrome with congenital heart malformation.

Two hundred fifty-one patients with Down syndrome and congenital heart disease was based on clinical (41%), catheterization (38%), surgical (11%), or autopsy data (10%). The most common lesions were endocardial cushion defect (43%), ventricular septal defect (32%), secundum atrial septal defect (10%), tetralogy of Fallot (6%), and isolated patent ductus arteriosus (4%). Thirty percent had multiple cardiac defects. The most common associated lesions were patent ductus arteriosus (16%) and pulmonic stenosis (9%). Twenty-five percent of the patients uncerwent cardiac surgery. Motality in the 68 patients undergoing surgery was 26% for open heart procedures and 11% for closed heart surgery. In 32% of nonsurgically treated patients with large left-to-right shunts, irreversible pulmonary vascular disease developed. Improved medical and surgical care have decreased morbidity and mortality in these patients in recent years.

Abnormalities, Multiple↗