Obesity is a risk factor intrinsic to the development of areas of atelectasis, especially when the patient undergoes to general anesthesia and, therefore, some groups of studies has been dedicated to studying such subject. The recently published letter to the editor comments on and points out some aspects regarding the article on the prevalence of atelectasis in the obese Grade III submitted to...

Massive pulmonary atelectasis is encountered in a variety of circunistances that predispose to, or produce bronchial obstruction. The obstructing agents may be tumors, intrinsic or extrinsic, foreign bodies, or abnormal secretions retained in the airways. Precipitating factors may be inhibition of the cough mechanism by drug or metabolic depression, reflex inhibition due to pain, or ineffective...

OBJECTIVES To analyze the effects of exposure to hyperoxia (100% oxygen) on the lung histoarchitecture of neonatal mice. METHODS Neonatal Balb/c mice were exposed to hyperoxia (HG) (100% oxygen) (n= 10) in a chamber (15 x 20 x 30 cm) for 24 hours with a flow of 2 L/min. The control group (CG) (n = 10) was exposed to normoxia in the same type of chamber and for the same time. After exposure, t...

Balloon dilation may offer a more expedient and cost-effective treatment method compared with traditional endoscopic sinus surgery for chronic maxillary atelectasis. We sought to demonstrate the feasibility of balloon dilation of the maxillary os as a treatment modality for patients with chronic maxillary atelectasis by investigating the short-term outcomes in a retrospective case series of 4 p...