These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Effect of mitral valve replacement on reduction of left atrial size.
    Author: Pande S, Agarwal SK, Mohanty S, Bansal A.
    Journal: Asian Cardiovasc Thorac Ann; 2013 Jun; 21(3):288-92. PubMed ID: 24570494.
    Abstract:
    INTRODUCTION: asymptomatic left atrial enlargement is not uncommon in rheumatic mitral valve disease. We studied the change in size of the left atrium after mitral valve replacement. PATIENTS AND METHODS: between January and December 2005, 116 patients underwent isolated mitral valve replacement. Two groups were identified based on left atrial size: group 1 < 60 mm (n = 79) and group 2 > 60 mm (n = 37). The patients were followed up for 40.4 ± 19.3 months Clinical assessment, preoperative and last postoperative echocardiograms were considered for analysis. RESULTS: the left atrium decreased by 5.84 mm ± 10.5 in group 1 compared to 20.9 mm ± 10.64 in group 2 (p = 0.0001). This correlated with preoperative mitral valve area (p = 0.009), preoperative mitral regurgitation (p = 0.000), and preoperative atrial fibrillation (p = 0.022). Linear regression analysis revealed atrial fibrillation (p = 0.001, b1 = 6.006), a high grade of mitral regurgitation (p = 0.001, b1 = -3.812), and larger size of the left atrium (p = 0.000, b1 = -0.701) predicted a greater reduction of left atrial size during follow-up. Left atrial size decreased by 28 mm in patients with a preoperative left atrium >60 mm (75% sensitivity and 100% specificity). CONCLUSION: the asymptomatic left atrium reduces in size considerably after mitral valve replacement, and the decrease is greater in patients with a left atrium >60 mm in size.
    [Abstract] [Full Text] [Related] [New Search]