الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Evaluation of foreign body aspiration of the airway in children can be accomplished by using a low-tube-current multi-detector computed tomography (MDCT) protocol. It may be useful both in showing the exact location of a foreign body before bronchoscopy and in ruling out a foreign body in patients with a low level of suspicion and normal or nonspecific findings on chest radiography.
MDCT with VB and axial/multiplanar reformatted (MPR) images provide equally valuable information in children with suspected foreign body aspiration and prevent unnecessary conventional bronchoscopic examinations.
Despite the fact that rigid bronchoscopy is a safe and useful technique for extracting foreign bodies from the airway in paediatric patients, many complications have been described, such as pneumothorax, pneumomediastinum, haemoptysis, laryngeal oedema, bronchial stenosis, tracheobronchial fistulae, and even death of the patient. Therefore, there must be a high degree of suspicion to indicate the examination.
This study was carried out on 50 children with query foreign body aspiration admitted to the Department of Otorhinolaryngology of Main University Hospital & Department of Paediatrics of El Shatby University Hospital, Faculty of Medicine, Alexandria University.
Our results summarized that:
- Age ranged between 6 months to 4.0 years with the mean of 2.240.947 years.
This study includes 28 (56.0%) males and 22 (44.0%) females.
- History: History of FB aspiration was found in most of patients 38 (76.0%) and no history of aspiration was found in 12 (24.0%) of the studied patients.
- Signs: decreased Rt air entry was found in 23 (46.0), bilateral equal air entry was found in 19 (38.0%), while decrease entry on It side was found in 8 (16.0%) of the studied patients.
- No respiratory distress was found in 23 (46.0%), mild respiratory distress was found in 11 (22.0), while moderate respiratory distress was found in 16 (32.0%).
- Regarding positive Gold standard method, as regards bronchoscopy, 29 patients (58%) had foreign body aspiration, 1 (3.4%) of them was free by using virtual bronchoscopy, and 14 (66.7%) were free by X-ray. On the other hand, 21 patients (72.4%) had no foreign body aspiration by bronchoscopy, 14 of them (66.7%) showed free X-ray and 19 were free by virtual bronchoscopy.
- Regarding virtual bronchoscopy, 96.6% sensitivity, 90.5% specificity, 93.3% positive predictive value, 95.0% negative predictive value and 94.0% accuracy, while X-ray, 72.4% sensitivity, 66.7% specificity, 75.0% positive predictive value,
63.6% negative predictive value and 70.0% accuracy.
- Respiratory distress was significant in patients between 6 months-2 years of age more than older age group.
- There was no statistical relation between X-ray and age classification. There was no statistical relation between virtual bronchoscopy and age classification.
There was no statistical relation between respiratory distress and sex. There was no statistical relation between X-ray and sex. There was no statistical relation between virtual bronchoscopy and sex.
- Regarding distribution of the positive cases by bronchoscope to the nature of the foreign body, it showed that, organic were found in 20 (69.0%), non organic were found in 9 (31.0%) of the studied cases.