@Article{Wójcik2011,
journal="Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery",
issn="1731-5530",
volume="8",
number="4",
year="2011",
title="The left atrioventricular valve regurgitation after the surgical repair 
of the partial atrioventricular canal. Long-term follow-up",
abstract="  Introduction:   An ostium primum atrial septal defect (ASD I) accounts for 15-20% of all atrial septal defects. It is usually associated with left atrioventricular valve (LAVV) cleft and regurgitation.     Aim of the study  : To evaluate the degree of LAVV regurgitation and its pathophysiological significance following surgical correction of ASD I.    Material and methods  : We examined 41 patients (32 females, 78%) following ASD I closure, including 35 patients following LAVV cleft repair. Their mean age at surgery was 31.3 ±15.6 and at follow-up 39.2 ±14.0 years. LAVV regurgitation was assessed with transthoracic echocardiography, both qualitatively using 4+ scale and quantitatively by effective regurgitant orifice area (EROA), and defined as significant if LAVV regurgitation was ≥ 3+ and/or EROA ≥ 0.40. 13 healthy volunteers served as controls.    Results  : LAVV regurgitation was present in 40 (97.6%)   patients. Compared to controls, in patients following ASD I repair, RVSP was significantly higher and left atrial diameter was significantly larger both in a subgroup of patients   with and without significant LAVV regurgitation. Neither age at surgery, nor age at follow-up or left atrial diameter, or RVSP were independently associated with the presence of significant LAVV regurgitation in patients following ASD I   repair.    Conclusions  : LAVV regurgitation is often present following ASD I   surgery. The echocardiographic evaluation of RVSP and left atrium diameter is limited in estimation of significance of LAVV regurgitation because of its complex mechanism and persistent consequences of left-to-right shunt. A remote valve repair   efficiency is determined mainly by cardiac surgery.",
author="Wójcik, Anna
and Klisiewicz, Anna
and Szymański, Piotr
and Lech, Agnieszka
and Różański, Jacek
and Kuśmierczyk, Mariusz
and Hoffman, Piotr",
pages="525--530",
url="https://www.termedia.pl/The-left-atrioventricular-valve-regurgitation-after-the-surgical-repair-r-nof-the-partial-atrioventricular-canal-Long-term-follow-up,40,18006,1,1.html"
}