[Endoscopic sinus surgery in flowing water].

A balloon has been developed that completely fills the choana, preventing water from leaking into the pharynx even when the water is entering into the nasal cavity at a rate of 1000 ml per minute. The balloon enables endoscopic sinus surgery (ESS) to be safely performed in "flowing water". This surgical technique is similar to that used in transurethral resections of the prostate because the tip of the endoscope is kept clean, and blood, debris and resected tissues are continuously removed by the water flow.

Auditory evoked off-response: its source distribution is different from that of on-response.

Offset auditory responses were investigated by electroencephalography mainly in the 1970s, but since then no particular attention has been paid to them. Among the studies using magnetoencephalography (MEG) devices there are, to our knowledge, only three studies of the auditory off-response, and no significant variance has ever been observed between the source locations of on- and off-responses elicited from pure tones. We measured auditory evoked magnetic fields (AEFs) to various frequency pure tone stimulation in 5 healthy subjects with a 122-channel helmet-shaped magnetometer, and compared the distributions of the source locations of auditory N100m-Off (magnetic off-response around 100 ms) with those of N100m-On.

[A case report of bilateral perilymph fistula in an adult, with literature review].

Adult bilateral perilymph fistula (PLF) is rare. We report a case of a 55-year-old man who suffered from sudden bilateral hearing loss after blowing his nose. On the first day, he also had bilateral tinnitus but no vertigo.

Five cases of mucormycosis in paranasal sinuses.

Five cases of mucormycosis are reported, 2 of them suffered from immunosuppression, the other 3 did not. We conclude that a combination of CT and bacteriological findings is useful for the diagnosis of mucormycosis differentially from other diseases. Therapy consisted of paranasal debridement and administration of amphotericin B.

[Mucormycosis in paranasal sinuses].

Paranasal sinus mucormycosis is a rare and often fatal condition that occasionally occurs in patients with debilitating disease. Five mucormycosis cases with paranasal sinus involvement are reported. Two also complicated diabetes mellitus.