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Effects of Giant Left Atrium on Thromboembolism after Mitral Valve Replacement

Cardiovascular Surgery Department, Van Yuksek Ihtisas Hospital, Van, Turkey
¹ Kosuyolu Heart and Research Hospital, Istanbul, Turkey

For reprint information contact: Veysel Kutay, MD Tel: 90 432 216 8352 Fax: 90 432 216 8352 Email: vkutay{at}yahoo.com, YYU Tp Fak. Araþtrma Hast. KVC Klinik, 65200 Van, Turkey

The aim of this study was to evaluate the incidence of thromboembolic events in patients with giant left atrium ( > 6.5 cm) after mitral valve replacement. From January 2000 to September 2002, a total of 126 patients who had undergone mitral valve replacement were divided into two groups according to the presence or absence of giant left atrium. Group A comprised 34 patients with left atrium over 6.5 cm without compression symptoms and Group B comprised 92 patients. The preoperative variables did not distinguish the patients in each group, except for atrial fibrillation; Group A 85.2% and Group B 61.9% ( p < 0.01). After mitral valve replacement, left atrium mean diameter was significantly decreased in Group A from 8.1 ± 1.3 mm to 6.2 ± 1.6 mm ( p < 0.01). There were no significant differences in thrombosis, hemorrhage and thromboembolism rates in both groups. Postoperative clinical and hemodynamic parameters demonstrated a positive clinical response to mitral valve replacement in patients with giant left atrium. During follow-up no direct relationship between thromboembolism and giant left atrium was evident.

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				E. Apostolakis and J. H. Shuhaiber The surgical management of giant left atrium Eur. J. Cardiothorac. Surg., February 1, 2008; 33(2): 182 - 190. [Abstract] [Full Text] [PDF]