Endoscopic approach for sealing of perilymphatic fistula. In this video I show you sealing of round and oval windows as the probable site of perilymphatic leak in right ear of a patient with history of fluctuating hearing loss and imbalance. His complain is more common when he try to lift a heavy load (دکتر علی محمد اصغری دکتر علی محمد اصغری متخصص گوش و حلق و بینی - فوق تخصص گوش و نوراتولوژی