Bowel obstruction can be treated with palliative surgery (colostomy, ileostomy, or internal bypass) or medicine, but surgery has been shown to increase survival time. Palliative surgery may result in short bowel syndrome, enterocutaneous fistula, or re-obstruction; or may not be possible due to the extent of obstruction. Other treatments of complications can include total parenteral nutrition, a low-residue diet, palliative gastrostomy, and adequate pain control. Bowel obstruction can also be treated with octreotide when palliative surgery is not an option. Cancer can also block the ureters, which can be relieved by a nephrostomy or a ureteric stent. Ascites can be relieved by repeated paracentesis or placement of a drain to increase comfort. Pleural effusions can be treated in a similar manner, with repeated thoracentesis, pleurodesis, or placement of a drain.