No abstract

Digital noise reduction schemes are being used in most hearing aids currently marketed. Unlike the earlier analog schemes, these manufacturer-specific algorithms are developed to acoustically analyze the incoming signal and alter the gain/output characteristics according to their predetermined rules. Although most are modulation-based schemes (ie, differentiating speech from noise based on temporal characteristics), spectral subtraction techniques are being applied as well. The purpose of this article is to overview these schemes in terms of their differences and similarities.

CAS for radiation arteritis has poor long-term anatomic outcome and can present with late asymptomatic occlusions. These findings suggest that these patients require closer postoperative surveillance and raise the question of whether CAS is appropriate for carotid occlusive lesions caused by radiation arteritis.

MetS is prevalent among patients undergoing carotid revascularization. MetS patients are at a greater risk for perioperative morbidity as well as stroke, MI, and MAE during follow-up when compared to patients without MetS. Long-term stroke prevention is poor in the presence of MetS. MetS should be considered a significant risk factor for patients undergoing carotid revascularization.

No abstract

Lymphangiography, thoracic duct embolization and thoracic duct disruption are successful interventional strategies in children with chylothorax and should be considered as viable treatment options at any age.

No abstract

No abstract