JOURNAL ARTICLE
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Vascular ring abnormalities: a retrospective study of 62 cases.

BACKGROUND: The authors analyzed clinical signs of vascular ring anomalies together with appropriate complementary examinations and factors predictive of outcome after surgical treatment.

METHODS: The authors reviewed the files of 62 patients with vascular ring abnormalities treated at Necker-Enfants Malades Hospital between January 1990 and January 2000, to analyze age at symptom onset, results of paraclinical examinations, the type of vascular ring abnormality, the surgical indications and type of surgery, and postoperative outcome. Outcomes were divided into 3 categories: cure, partial improvement, and no improvement. The chi2 test corrected with Fischer's Exact test was used for statistical analysis.

RESULTS: Vascular ring abnormalities were diagnosed at birth in 28% of cases and during the first year of life in 68%. Sixteen percent of patients had associated abnormalities. Recurrent pulmonary and bronchial infections occurred after one year of age. An esophagogram was done in 76% of cases and showed impression images. Endoscopy was done in 63% of cases and showed malacia in 41% of patients and stenosis in 51%. Fifty-eight children were treated surgically. The average hospital stay was 7.4 days. The average follow-up was 37.4 months (12 to 159 months). Complete improvement was obtained in 68% of cases, partial improvement in 17%, and no improvement in 15%. Preoperative malacia was more frequent in patients with partial improvement or no improvement.

CONCLUSIONS: Surgical treatment of congenital vascular ring abnormalities is effective and safe. Complications are rare. Prognostic factors include the quality of preoperative preparation of respiratory function, the type of abnormality, and the degree of malacia.

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