If the doctor decides that you are eligible to receive the abdominal wash, a drug called sodium thiosulfate will be given through a needle in your vein. The abdomen will then be temporarily closed. Then the abdominal wash will begin. This will be done in the same room while you are under anesthesia. During the "abdominal wash," the heated cisplatin will be given into your abdomen and will "wash" over the area of the surgical procedure. There will be a pump attached to the plastic tubing and that will pump the drug in and out of your abdomen during that 90 minute period while the surgeon is gently compressing your abdominal wall so that the drug can reach all areas of your abdomen equally. After 90 minutes the drug is removed and your abdomen is 'washed' with saline. Then all the fluid is removed and the surgeon permanently closes your abdomen with 3 layers of stitches.