Equal saturation in ventricle and both great vessels

In which condition can there be equal saturation in ventricle and both great vessels?

In single ventricle, since there is complete mixing of left atrial and right atrial blood, saturations in aorta and pulmonary artery are equal. In single atrium also the situation is similar, with complete mixing at the atrial level. Other admixture lesions can be in this line as well. Read more on admixture lesions …