Advertisement

Topics

Use of Endobronchial Ultrasound Scope (EBUS) Transducer to Identify Pneumothorax-A Feasibility Study

2016-09-20 20:38:21 | BioPortfolio

Summary

Endobronchial ultrasound (EBUS) is a technique that uses ultrasound along with bronchoscope to visualize airway wall and structures adjacent to it. Pneumothorax is a known complication from EBUS procedure. To rule out a Pneumothorax after the procedure, a Chest -X-ray is usually done. Point-of-care sonography has emerged as an invaluable tool in the assessment of patients with both traumatic and non-traumatic dyspnea. Multiple studies involving bedside ultrasound has shown that a pneumothorax can easily be ruled out if pleural sliding sign or B lines are visualized on lung ultrasonography; the accuracy of lung ultrasound in ruling out pneumothorax approach computed tomography and exceed plain radiography. Preforming a lung ultrasound using the EBUS bronchoscope tip as a way to rule out pneumothorax has never been described previously. If this is possible it will obviate the need of getting a Chest -X-ray and decrease the dose of radiation that the patient is exposed to. In this study we will demonstrate that the feasibility of using the transducer of the EBUS Bronchoscope to perform bedside lung ultrasound to rule out pneumothorax.

Description

The use of ultrasound in diagnosis and treatment of patients has been well-established for many decades. The use of thoracic ultrasonography is a fairly new and rapidly evolving field. The interface between the ultrasound probe and chest wall can produce artifacts that can be useful in diagnosing a pneumothorax. In one prospective study the utility of ultrasound was compared to chest X-ray and CT-scan by trauma surgeon (1). Their results demonstrate that ultrasound was more sensitive than chest X-ray to identify early pneumothorax. The study also demonstrated that 63% of pneumothoraxes diagnosed were occult and would have been later diagnosed on CT chest. In these critical situations where is subtle pneumothorax can be missed, a bedside ultrasound has been proven to accelerate the diagnosis and thus treatment. Similarly another prospective study noted that up to 76% of all traumatic pneumothoraxes were missed by standard AP chest X-ray, when interpreted by trauma team (2). This number was significantly higher than a retrospective study in which 55% of pneumothoraxes were missed on AP chest films reviewed by radiologist (3). The sensitivity of ultrasound in detecting pneumothorax has been demonstrated in multiple studies to be similar to CT-scan, which is considered to be gold standard for the detection of pneumothorax (4, 5).

Visualization of normal pleural lung sliding is itself sufficient to exclude pneumothorax , if lung sliding is not present the finding of B lines( vertical lines), which usually originate from the lung parenchyma will also exclude the possibility of pneumothorax at the interspace in question, since the lung parenchyma cannot be visualized if there is air interposed between the pleura and the lung.

Endobronchial ultrasound (EBUS) is considered an integral component of diagnosis of indeterminate mediastinal lymph nodes, masses and peripheral pulmonary nodules. EBUS is minimally invasive, safe and highly accurate (6). According to current estimates that incidence if complications associated with EBUS is between 1-1.5% (6, 7). Major complications are associated with needle aspirations. The incidence of pneumothorax was found to be 3.3% in one retrospective analysis (8), with 31% of patients requiring chest tube eventually for treatment of pneumothorax. Post-procedure chest-X-rays are commonly performed to rule out pneumothorax. Based on current data chest-X-rays are considered suboptimal for diagnosis of pneumothorax and can also expose patients to undue radiation.

The EBUS probe contains a small ultrasound through which ultrasound images of various structure i.e. lymph nodes, ventricles, pulmonary vasculature can be visualized. Ruling out pneumothorax via lung ultrasound using EBUS probe has never been described. If this is possible, it avoids the need of obtaining post-procedure Chest-X-rays thus decreasing the dose of radiation exposure and prevent time delays for the arrival of chest-x-rays.

In this study we will demonstrate the feasibility of using the transducer of the EBUS Bronchoscope to perform bedside lung ultrasound to rule out pneumothorax.

Study Design

Observational Model: Case-Only, Time Perspective: Cross-Sectional

Conditions

Pneumothorax

Intervention

Ultrasound with EBUS scope and with linear ultrasound probe

Status

Not yet recruiting

Source

University of Oklahoma

Results (where available)

View Results

Links

Published on BioPortfolio: 2016-09-20T20:38:21-0400

Clinical Trials [2694 Associated Clinical Trials listed on BioPortfolio]

Thin-EBUS in Ex-vivo Human Lungs

This study will determine the feasibility of the novel thin convex probe endobronchial ultrasound (TCP-EBUS) in human resected lobes. The primary end point is to clarify the feasibility of...

Endobronchial Ultrasound (EBUS) for Nodal Staging in Esophageal Cancer

The purpose of this study is determine if performing endobronchial ultrasound (EBUS) in addition to standard endoscopic ultrasound (EUS) can increase the precision and accuracy of staging ...

Diaphragmatic Motion Using Linear Ultrasound

This study evaluates the movement of the diaphragm (which is the main muscle used for breathing). It will compare two ultrasound modalities: linear ultrasound versus curvilinear ultrasound...

Prevalence and Location of Intra-Procedural Atelectasis Detected by Radial-Probe Endobronchial Ultrasound During Peripheral Bronchoscopy Under General Anesthesia

The goal of this clinical research study is to learn if and how often a standard procedure called endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) may cause ate...

EBUS/Spectrum Analysis

To evaluate the clinical benefit of spectrum analysis of endobronchial ultrasound images of lymph nodes during EBUS TBNA for lymph node staging in patients with lung cancer.

PubMed Articles [7062 Associated PubMed Articles listed on BioPortfolio]

Radial Endobronchial Ultrasound Greyscale Texture Analysis Using Whole-Lesion Analysis Can Characterise Benign and Malignant Lesions without Region-of-Interest Selection Bias.

Radial-probe endobronchial ultrasound (RP-EBUS) is predominantly used clinically for the localisation of peripheral pulmonary lesions prior to biopsy. However, the RP-EBUS image itself contains inform...

Sampling pleural nodules with an EBUS scope: A novel application.

Convex endobronchial ultrasound transbronchial needle aspiration (C-EBUS-TBNA) has become an essential modality for diagnosis and staging of hilar, mediastinal, and central pulmonary lesions. A Trans-...

Convex-probe endobronchial ultrasound for thyroid biopsy a new hybrid method.

Nowadays we use novel diagnostic equipment for lung cancer. Bronchoscopy was the tip of the arrow for diagnosis, however; ultrasound systems have brought a revolution. We have the radial-endobronchial...

Endobronchial Ultrasound in Suspected Non-Malignant Mediastinal Lymphadenopathy.

 Endobronchial ultrasound (EBUS) bronchoscopy with transbronchial needle aspiration (TBNA) is a well-established tool in mediastinal staging in lung cancer and gains importance in exploration of non...

The Use of Ultrasound Simulators to Strengthen Scanning Skills in Medical Students: A Randomized Controlled Trial.

This study evaluates the use of ultrasound simulators for retaining and improving ultrasound skills acquired in undergraduate ultrasound training.

Medical and Biotech [MESH] Definitions

The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.

Tissue ablation of the PROSTATE performed by ultrasound from a transducer placed in the RECTUM. The procedure is used to treat prostate cancer (PROSTATIC NEOPLASMS) and benign prostatic hypertrophy (PROSTATIC HYPERPLASIA).

Ultrasonography applying the Doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (Stedman, 25th ed)

A non-invasive technique using ultrasound for the measurement of cerebrovascular hemodynamics, particularly cerebral blood flow velocity and cerebral collateral flow. With a high-intensity, low-frequency pulse probe, the intracranial arteries may be studied transtemporally, transorbitally, or from below the foramen magnum.

Use of ultrasound to increase the percutaneous adsorption of drugs.

More From BioPortfolio on "Use of Endobronchial Ultrasound Scope (EBUS) Transducer to Identify Pneumothorax-A Feasibility Study"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...

Anxiety Disorders
Anxiety is caused by stress. It is a natural reaction, and is beneficial in helping us deal with tense situations and pressure. It is deterimental when is becomes an excessive, irrational dread of everyday situations. The most common types of anxiety di...

Pulmonary
Pulmonary relating to or associated with the lungs eg Asthma, chronic bronchitis, emphysema, COPD, Cystic Fibrosis, Influenza,  Lung Cancer, Pneumonia, Pulmonary Arterial Hypertension, Sleep Disorders etc Follow and track Lung Cancer News ...


Searches Linking to this Trial