Elisa,
Here is a great paper written on the European Guidelines for a second TURB....its also what we recommend in the states.
www.europeanurology.com/article/S0302-2838(10)00367-2/fulltext
As for IEO its a bit confusing as the urologists listed are from USC/Norris...in Los Angeles...Drs. Skinner and Boyd..very well known uro/surgeons in the bladder cancer field.
You want someone who sees a lot of bladder cancer...its an elusive and not very well studied cancer....Most urologists concentrate on the Prostate or other problems. CIS is considered high grade and often BCG will eliminate it...but if it comes back you want to make sure you are with a very experienced surgeon who really knows what he is doing.
Generally the wait is around 3 to 4 weeks after TURB..enough time for the bladder to heal from the TURB before BCG is administered. Dr. Lamm pioneered the protocol for BCG
www.blcwebcafe.org/drlammsprotocol.asp
pat