Fig. 2From: Efficacy and safety of thoracoscopic pericardial window in patients with pericardial effusions: a single-center case seriesChanges in the cardiothoracic ratio (a) and ejection fraction (b) before and after creating a thoracoscopic pericardial window (TPW). The data show significant changes after the TPW was created as evaluated by the paired t-test (p < 0.001 and p = 0.012, respectively)Back to article page