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Endobronchial ultrasound: A new innovation in bronchoscopy.

T B, F J H - Lung India (2009)

Bottom Line: With EBUS mini-probe, the multilayered structure of the tracheobronchial wall can be analyzed better than any other imaging modality.Studies have shown that EBUS is cost-effective as it reduces the need for more morbid and costly invasive procedure like mediastinoscopy or thoracotomy.Prospective studies are needed in India to see how EBUS will help in populations with high prevalence of tuberculosis.

View Article: PubMed Central - PubMed

Affiliation: Department of Pulmonary Medicine, Christian Medical College, Vellore, India.

ABSTRACT
Technical development in last two decades has made it possible for pulmonologists to do endobronchial ultrasound (EBUS). With EBUS mini-probe, the multilayered structure of the tracheobronchial wall can be analyzed better than any other imaging modality. Instead of fluoroscopic guided biopsy, EBUS can be used to biopsy peripheral lesions. EBUS-transbronchial needle aspiration has proved valuable for mediastinal lymph node staging of lung cancer. Studies have shown that EBUS is cost-effective as it reduces the need for more morbid and costly invasive procedure like mediastinoscopy or thoracotomy. Prospective studies are needed in India to see how EBUS will help in populations with high prevalence of tuberculosis.

No MeSH data available.


Related in: MedlinePlus

Linear EBUS
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Figure 0004: Linear EBUS

Mentions: Recently linear probe EBUS has been developed which allows real-time ultrasonic guidance during needle insertion [Figure 4 and Figure 5]. In a large series by Herth et al. real time EBUS-TBNA for enlarged mediastinal nodes on chest CT in suspected lung cancer patients, 572 lymph nodes were punctured and 535 (94%) resulted in diagnosis. Biopsies could be taken from all reachable lymph node stations (2L, 2R, 3, 4R, 4L, 7, 10R, 11R and 11L) and had a mean diameter of 1.6 cm. A sensitivity of 94%, a specificity of 100% and accuracy of 94% could be achieved. Similar results was found in other series also.2223 EBUS-TBNA has been even found useful in sampling lymph nodes, which are not enlarged on chest CT. Herth et al. evaluated 100 lung cancer patients without enlarged lymph nodes.24 Surgical verification was performed in all patients. EBUS-TBNA had a sensitivity of 92% a specificity of 100% and a negative predictive value of 96%. Time required for performing EBUS-TBNA varies from 6.3 min to 30min as compared to conventional TBNA of 3.8 min.61521 Recently EBUS-TBNA has been found to be a sensitive, specific and sufficiently accurate method to restage mediastinum after induction chemotherapy in patients with non-small cell lung cancer (NSCLC).25 However, a low negative predictive value necessitates surgical staging before deciding on thoracotomy.


Endobronchial ultrasound: A new innovation in bronchoscopy.

T B, F J H - Lung India (2009)

Linear EBUS
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2813108&req=5

Figure 0004: Linear EBUS
Mentions: Recently linear probe EBUS has been developed which allows real-time ultrasonic guidance during needle insertion [Figure 4 and Figure 5]. In a large series by Herth et al. real time EBUS-TBNA for enlarged mediastinal nodes on chest CT in suspected lung cancer patients, 572 lymph nodes were punctured and 535 (94%) resulted in diagnosis. Biopsies could be taken from all reachable lymph node stations (2L, 2R, 3, 4R, 4L, 7, 10R, 11R and 11L) and had a mean diameter of 1.6 cm. A sensitivity of 94%, a specificity of 100% and accuracy of 94% could be achieved. Similar results was found in other series also.2223 EBUS-TBNA has been even found useful in sampling lymph nodes, which are not enlarged on chest CT. Herth et al. evaluated 100 lung cancer patients without enlarged lymph nodes.24 Surgical verification was performed in all patients. EBUS-TBNA had a sensitivity of 92% a specificity of 100% and a negative predictive value of 96%. Time required for performing EBUS-TBNA varies from 6.3 min to 30min as compared to conventional TBNA of 3.8 min.61521 Recently EBUS-TBNA has been found to be a sensitive, specific and sufficiently accurate method to restage mediastinum after induction chemotherapy in patients with non-small cell lung cancer (NSCLC).25 However, a low negative predictive value necessitates surgical staging before deciding on thoracotomy.

Bottom Line: With EBUS mini-probe, the multilayered structure of the tracheobronchial wall can be analyzed better than any other imaging modality.Studies have shown that EBUS is cost-effective as it reduces the need for more morbid and costly invasive procedure like mediastinoscopy or thoracotomy.Prospective studies are needed in India to see how EBUS will help in populations with high prevalence of tuberculosis.

View Article: PubMed Central - PubMed

Affiliation: Department of Pulmonary Medicine, Christian Medical College, Vellore, India.

ABSTRACT
Technical development in last two decades has made it possible for pulmonologists to do endobronchial ultrasound (EBUS). With EBUS mini-probe, the multilayered structure of the tracheobronchial wall can be analyzed better than any other imaging modality. Instead of fluoroscopic guided biopsy, EBUS can be used to biopsy peripheral lesions. EBUS-transbronchial needle aspiration has proved valuable for mediastinal lymph node staging of lung cancer. Studies have shown that EBUS is cost-effective as it reduces the need for more morbid and costly invasive procedure like mediastinoscopy or thoracotomy. Prospective studies are needed in India to see how EBUS will help in populations with high prevalence of tuberculosis.

No MeSH data available.


Related in: MedlinePlus