The septum of the heart is a wall of tissue that separates the left and right sides of the heart and enables blood to flow as it should. It consists of the atrial septum and the ventricular septum.

PULMONARY hypertension is a serious and relatively frequent complication of the ostiumsecundum type of defect of the atrial septum. 1–4 It increases the symptoms and disability of cardio-respiratory ...

DEFECTS of the interauricular septum in the human being carry a variable prognosis. Small openings are known to be tolerated rather well through a long span of life. Large defects give left-to-right ...