Source: Annual Congress 2002 - Thoracic ultrasound and photodynamic therapy
Disease area: Thoracic oncology

Abstract

INTRODUCTION Endobronchial ultrasound (EBUS) is a true new endoscopic thecnique that allows the possibility to explore the bronchial and peribronchial structures. Because the costs and the learning difficulty it need to define the goals to introduce this technique in a routine setting.
MATHERIALS AND METHODS During fiberoptic bronchoscopy we used an Olympus echo system with balloon catheter or an ultrasonic bronchofiberscope both with a 20MHz echo transducer. The first century of EBUS examination was rewieved to evaluate the method of examination, the goals of the images the kind of echo-assisted procedures and the learning time for procedures.
RESULTS On 100 EBUS we obtain helpful images in 97% of cases. We reached a correct understanding of images of bronchial wall and of structure of lymph nodes and vessels after 18 examinations, particularly to support echo assisted transbronchial needle aspiration (TBNA). The learning period was 3 months and in 100 examinations we performed 68% of echo assisted procedures. Negative results were 11% of cases, 18% were helpful for pathological examination and 39% were diagnostic. TBNA performed in 43% of cases had 68% of diagnostic results. The learning period to understand the appearance of cancer infiltration in bronchial wall was very short. We obtain diagnostic images as result of echo examination in 8% of 100 EBUS. On 69th EBUS examination we obtain a perfect image of peripheral pulmonary nodule that were studied in 27% of cases and bioptic procedures were diagnostic in 61% of cases. During hundred examinations EBUS procedure raised from 6% to 9% of all bronchoscopic examination.
DISCUSSION The learning time to perform routinely with EBUS the studies of bronchial wall and peripheral nodules and TBNA range from 6 to 12 months.

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Citations should be made in the following way:
F. Falcone, F. Fois, D. Grosso (Bologna, Italy). Which goals to introduce endobronchial ultrasound (EBUS) in a routine setting. Eur Respir J 2002; 20: Suppl. 38, 3717

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