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The Annals of Thoracic Surgery, Vol 29, 322-330, Copyright © 1980 by The Society of Thoracic Surgeons
DM Behrendt and A Rosenthal
Patients surviving a Fontan operation experience dramatic symptomatic
improvement, but concern remains about the long-term results of this
operation. The clinical course and postoperative hemodynamic findings in 5
long-term survivors of the Fontan procedure from our institution are
presented. Attention is drawn to 3 patients who required reoperation: 1
immediately for residual mild pulmonary stenosis, 1 for late onset complete
heart block, and 1 for conduit valve stenosis. Review of our patients and
those described in the literature reveals that all have ascites and pleural
effusions as a results of high venous pressures but that this is usually a
temporary problem. Late onset of obstruction to right atrial emptying has
been reported in several patients in addition to ours. This raises serious
concerns about the long-term fate of cloth conduits and porcine valves in
this application. Although normal sinus rhythm has been thought to be
essential for adequate pulmonary perfusion in these patients, it is
interesting that several patients have tolerated atrial tachyarrhythmias,
junctional rhythms, and even complete heart block without serious ill
effects. We conclude that the Fontan procedure is extremely effective in
relieving symptoms at an operative risk that is now acceptable, but these
patients require very careful long-term follow-up because they are subject
to a number of long-term complications.
ARTICLES
Cardiovascular status after repair by Fontan procedure
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