Transbronchial needle aspiration (TBNA
) is the aspiration of material using a needle that is passed through the endobronchial wall-Bronchoscopy is used to direct the operator to the target lesion (eg.
Minimal bleeding occurred during TBNA
biopsy in four out of forty cases and controlled with adrenaline spray through working channel of bronchoscope.
was performed only for lymph nodes exceeding 0.5 cm in diameter.
The diagnostic accuracy of TBNA
ranges from 36% to 85%, said Dr.
Analysis of variance comparing 10 genotypes, under two N rates, for forage DM yield (FDM), forage N accumulation (FNA), forage N concentration (FNC), leaf weight ratio (LWR), root weight ratio (RWR), total biomass DM yield (TBDM), total biomass N accumulation (TBNA
), total biomass N concentration (TBNC), neutral detergent fiber (NDF), in vitro true digestibility (IVTD) and in vitro cell wall digestibility (IVCWD).
with rigid bronchoscopy, jet ventilation and general anesthesia--A review of procedural, anesthesia and post recovery times.
with and without EBUS: a comparative efficacy study for the diagnosis and staging of lung cancer.
There are invasive methods for evaluation of abnormal mediastinal lymph nodes, including mediastinoscopy (Med) , thoracoscopy , transbronchial needle aspiration (TBNA
) , endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) , and endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) .
Whole tracheobronchial tree was examined and wherever possible either bronchoalveolar lavage (BAL) or bronchial brushing, and Transbronchial needle aspiration (TBNA
) and/or biopsy from endobronchial lesions (n=58) were collected and sent to pathology for cytological and histopathological examination.
Endobronchial ultrasound-guided TBNA
(EBUS-TBNA) provides real-time visualization and access to paratracheal, subcarinal, and hilar LN .
Considering traditional bronchoscopy with TBNA
as the least invasive procedure to obtain a cytological diagnosis, the proximity of the aorta and pulmonary arteries and the mass being 14 mm from the bronchus would have made sampling by means of this procedure near impossible.
Other techniques are available for suspected lesions of the mediastinum, including standard flexible bronchoscopy with blind TBNA
, transthoracic needle aspiration, mediastinoscopy etc but EBUS-TBNA is least invasive, and has good diagnostic yield for meditational pathologies7.