The first surgical approach consists of resection and primary anastomosis. It is surgically corrected, with resection of any fistula and anastomosis of any discontinuous segments. A similar ileal pouch without the anal anastomosis is a Kock pouch. Survival rates are higher in surgical cases that do not require resection and anastomosis. The circulatory anastomosis is further divided into arterial and venous anastomosis. Cardiac catheterization on postoperative day 14 showed a patent stented anastomosis. Autopsy was not performed, and the long-term patency of the anastomosis was not established. This procedure requires a temporary loop ileostomy to allow the anastomosis to heal. These can be ameliorated by surgical intervention to create a bypass using the anastomosis technique. Other applications include laser assisted angioplasties and laser-assisted vascular anastomosis. Reconnection of the stomach to a shortened esophagus is called an esophagogastric anastomosis. Another anastomotic branch may also supply the uterus from anastomosis of these two arteries. Examples include intestinal anastomosis, Roux-en-Y anastomosis or ureteroureterostomy. Multistage surgeries, or autotransplantation and anastomosis, are more often necessary in these situations. The reestablishment of an anastomosis that had become blocked is called a reanastomosis.