Respiratory syncytial virus (RSV) bronchiolitis is a common infection in young children and may result in hospitalization. We examined the incidence of, and risk factors associated with, hypoxemia and respiratory failure in 216 children aged < 24 months admitted consecutively for proven RSV bronchiolitis. Hypoxemia was defined as SpO2 < 90% in room air and severe RSV bronchiolitis requiring int...

OBJECTIVES To determine risk factors associated with postoperative hypoxemia after surgery for acute type A aortic dissection. METHODS We retrospectively analyzed the clinical data of 192 patients with acute type A aortic dissection who underwent surgery in Qingdao Municipal Hospital, Medical College of Qingdao University, Qingdao, China between January 2007 and December 2013. Patients were d...

BACKGROUND In patients with cystic fibrosis (CF), it has been proposed that hypoxemia and hypercapnia occur during episodes of stress, such as exercise and sleep, and that respiratory muscle weakness because of malnutrition may be responsible. METHODS Pulmonary function, respiratory muscle strength, and nutrition were assessed and correlated with the degree of hypoxemia and hypercapnia during...

We investigated whether one or more factors control performance in O2-limited hearts. For this purpose, we measured the dynamics of myocardial adaptation to reduced O2 supply with a specially designed setup, analyzing early changes after reduction in either flow of the perfusion medium or its PO2. For 10 min, 38 isolated rat hearts underwent low-flow ischemia or hypoxemia, matched for O2 supply...

To determine whether chronic hypoxemia secondary to an intracardiac right-to-left shunt alters regulation of the myocardial beta-adrenergic receptor/adenylate cyclase system, we produced chronic hypoxemia in nine newborn lambs by creating right ventricular outflow obstruction and an atrial septal defect. Oxygen saturation was reduced to 65-74% for 2 wk. Eight lambs served as normoxemic controls...

BACKGROUND In 2014, this group published an investigation of surgical patients from 2012 who had substantial rates of postoperative hypoxemia (POH) and perioperative pulmonary aspiration (POPA). Therefore, we investigated whether intraoperative reverse Trendelenburg positioning (RTP) decreases POH and POPA rates. METHODS Consecutive ASA I-IV surgical patients who had preoperative pulmonary st...

how to cite this article: khoddami m, akbarzadeh a, mordai a, bidari zerehpoush f, alipour h, samadzadeh s, alipour b.diagnostic accuracy of frozen section of central nervous system lesions: a 10-year study. iran j child neurol. 2015 winter;9(1):25-30.   abstract objective definitive diagnosis of the central nervous system (cns) lesions is unknown prior to histopathological examination. to dete...