Many people use the terms ocean and sea interchangeably when speaking about the ocean, but there is a difference between the two terms when speaking of geography (the study of the Earth's surface).
The peritoneal dialysis catheter is composed of a flexible silicone tube with an open-end port and several side holes to provide optimal drainage and absorption of the dialysate. The extraperitoneal component of the catheter has either one or two Dacron cuffs. The Dacron cuffs are for optimal ingrowth and fixation.
Continuous or chronic ambulatory peritoneal dialysis (CAPD) has become an accepted treatment for end-stage chronic renal failure. It is well known that peritonitis is the most common complication of CAPD. The majority of these cases of peritonitis are catheter related and will usually resolve with antibiotic therapy. Although a single organism usually causes catheter related peritonitis, 6-9% of cases are polymicrobial in origin.