Complex sentence: The most common causes of transudative pleural effusions in the United States are left ventricular failure, and cirrhosis (causing hepatic hydrothorax), nephrotic syndrome leading to increased loss of albumin and resultant hypoalbuminemia and thus reducing colloid osmotic pressure is another less common cause.
Split into simpler sentences: The most common causes of transudative pleural effusions in the United States are left ventricular failure, and cirrhosis (causing hepatic hydrothorax). Nephrotic syndrome leading to increased loss of albumin and resultant hypoalbuminemia and thus reducing colloid osmotic pressure is another less common cause.