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The Journal of Thoracic and Cardiovascular Surgery, Vol 103, 369-374, Copyright © 1992 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
EE Weinschelbaum, C Schamun, V Caramutti, H Tacchi, J Cors and RG Favaloro
We present an analysis of 59 patients operated on between 1983 and 1987 for
acute type A dissecting aneurysm with aortic valve insufficiency. The
ascending aorta was replaced with a Dacron tube, the layers of the
dissection were unified with gelatin-resorcine-formaldehyde glue, and the
natural aortic valve was preserved. Follow-up every 6 months was subject to
actuarial analysis. The hospital mortality rate was 22%. The survivors were
studied for 35.9 +/- 18.6 months (mean +/- standard deviation). Eight
patients died (six of cardiovascular causes, one of cancer of the colon,
and one of an unknown cause). Seventeen (36.9%) had aortic insufficiency,
eight mild and nine moderate to severe. Four patients with severe
insufficiency had reoperation with valve replacement. Excluding patients
who have died or undergone reoperation, 29 of the remainder (90.6%) are
free of symptoms. The follow-up survival rate is 61% +/- 6.93% (standard
error) including hospital mortality. It is 55.4% +/- 7% (standard error)
excluding reoperation and 44.2% +/- 7.1% (standard error) additionally
excluding modest or severe aortic insufficiency. The use of
gelatin-resorcine-formal glue allowed preservation of the native aortic
valve, obviating the need for anticoagulants, and no embolic or hemorrhagic
episodes were registered.
ARTICLES
Surgical treatment of acute type A dissecting aneurysm, with preservation of the native aortic valve and use of biologic glue. Follow-up to 6 years
Institute of Cardiology, Cardiovascular and Thoracic Surgery, Guemes Private Hospital, Buenos Aires, Argentina.
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