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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
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Related Experiment Video

Updated: Mar 26, 2026

Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
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Transbronchial needle aspiration: development history, current status and future perspective.

Huizhen Yang1, Yuan Zhang1, Ko-Pen Wang1

  • 11 Department of Respiratory and Critical Care Medicine, People's Hospital, Zhengzhou University, Zhengzhou 450003, China ; 2 Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200092, China ; 3 Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, USA.

Journal of Thoracic Disease
|January 26, 2016
PubMed
Summary

Conventional transbronchial needle aspiration (C-TBNA) is a cost-effective diagnostic tool for lung and mediastinal diseases. Further technological advancements are needed to improve its efficacy and patient comfort.

Keywords:
FujifilmTransbronchial needle aspiration (TBNA)Wang needleendobronchial ultrasound (EBUS)rapid on-site evaluation (ROSE)

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Area of Science:

  • Pulmonology
  • Medical Imaging
  • Diagnostic Procedures

Background:

  • Transbronchial needle aspiration (TBNA) was historically underutilized due to its "blind" nature.
  • The advent of endobronchial ultrasound-guided TBNA (EBUS-TBNA) has revitalized interest in TBNA.
  • Conventional TBNA (C-TBNA) refers to TBNA performed without EBUS guidance.

Purpose of the Study:

  • To provide a detailed overview of Conventional Transbronchial Needle Aspiration (C-TBNA) technology.
  • To examine the historical development, current status, and future prospects of C-TBNA.
  • To highlight the significance of C-TBNA in clinical practice.

Main Methods:

  • Historical review of TBNA technology development.
  • Analysis of the current clinical applications and limitations of C-TBNA.
  • Discussion of future research directions and potential improvements for C-TBNA.

Main Results:

  • C-TBNA is a simple, cost-effective, and minimally invasive diagnostic technique.
  • It is applicable for diagnosing mediastinal and lung diseases in both adult and pediatric patients.
  • C-TBNA offers a valuable tool for tissue acquisition in respiratory medicine.

Conclusions:

  • Further improvements in C-TBNA technology are essential.
  • Enhancements should focus on instrumentation, techniques, patient comfort, and ease of use.
  • Optimizing diagnostic yield and minimizing training requirements are key areas for development.