“…The Past: From Peritoneal Lavages in Ancient Egypt to Flush-before-Fill Technology PD developed over five major periods: (1) the pre-20th/early 20th century, when scientists learned to access the peritoneum and use it to treat acute and chronic kidney diseases; (2) the Second World War and postwar period, which led to an urgent need to find treatments of kidney disease; (3) the 1970s and 1980s, when PD technologies grew and infection rates fell; (4) the 1990s-2010s, when PD use stagnated in several countries; and (5) the present, where PD is emerging as a therapy to improve patient-centered care. [3][4][5][6][7][8] In the pre-20th century, scientists in Ancient Egypt saw the peritoneum as an access point for human physiology and conducted peritoneal lavages. 3 As abdominal surgery developed, physiologists went one step further and began to experiment with the idea of using the peritoneum to exchange substances.…”