Environmental impact of phosphogypsum stockpile in remediated Schistos waste site (Piraeus, Greece) using a combination of γ-ray spectrometry with geographic information systems.

From 1979 to 1989, ten million tons of phosphogypsum, a waste by-product of the Greek phosphate fertilizer industry, was disposed into an abandoned limestone quarry in Schistos former waste site, Piraeus (Greece). The quarry has been recently closed and remediated using geomembranes and thick soil cover with vegetation. A part of the deposited phosphogypsum has been exposed due to intense rainfall episodes leading to concerns about how could potentially released radioactivity affect the surrounding environment.

The management of obstructive sleep apnea in adults.

Obstructive Sleep Apnea (OSA) is characterized by recurrent, complete or partial airway closure during sleep. It is a potentially hazardous condition and appropriate treatment should be strongly advised to all OSA patients. The primary mode of OSA management is Continuous Positive Airway Pressure (C-Pap).

Pharyngeal suspension suture with repose bone screw for obstructive sleep apnea.

Objective: Multilevel surgery for obstructive sleep apnea syndrome (OSA) may improve success. This study's goal is to prospectively evaluate the feasibility and short-term subjective effectiveness of a new tongue-suspension technique.

Methods: A multicenter nonrandomized open enrollment trial used the Repose device to treat tongue obstruction in 39 snoring and OSA patients.

Staging of chronic hyperplastic rhinosinusitis: treatment strategies.

In 1990 we reported an initial prospective study of 100 patients using a four-stage system for classification of chronic rhinosinusitis. Between January 1988 and July 1992, we used this system in staging an additional 1814 patients, on whom 2980 intranasal sphenoethmoidectomies were performed. In this staging system a protocol trial of medication was given for 2 weeks, followed by axial and coronal computed tomography.

Intranasal sphenoethmoidectomy: an evolution of technique.

Intranasal sphenoethmoidectomy was originally used primarily for the provision of adequate drainage of acute and subacute bacterial sinusitis. However, the spectrum of inflammatory sinus disease has changed dramatically since the popularization of broad-spectrum antibiotics, and chronic hyperplastic rhinosinusitis has replaced acute sinusitis as the primary indication for ethmoidectomy. In such cases total or almost total disease removal is crucial to providing long-term drainage and ventilation.