We are a medical team that does a large number of surgeries all-year. As a result, we can`t delay the already scheduled surgeries, which are more than a thousand, till after Ramadan under the excuse that patients are observing fast. In most scheduled cases, patients are forced to break their fast for a day or two until they return to normal. However, there is a new surgical procedure that we perform on patients suffering from "excessive obesity" where they are forced to break their fast and follow a diet for a minimum of three weeks. Is it permissible to perform this procedure in Ramadan?