Expired Study
This study is not currently recruiting Study Participants on ClinicalConnection.com. If you would like to find active studies please search for clinical trials.

Boston, Massachusetts 02115


The purpose of this study is to use transesophageal echocardiography (TEE) to determine the incidence, severity, and clinical significance of gas bubbles during argon plasma coagulation (APC).

Study summary:

Gas embolism is a rare but serious complication of APC. We will use TEE to monitor for gas bubbles during APC. APC will be terminated if gas bubbles are associated with ischemic heart rhythms, wall motion abnormalities, or if large gas bubbles are noted in the left ventricle.


Inclusion Criteria: - Adults (male and female) 18 years of age or older - Clinical indication for bronchoscopy (hemoptysis, airway obstruction, tumor excision, granulation tissue that is impairing endobronchial stent performance) - Ability of the patient or proxy to read, comprehend, and sign informed consent document. Exclusion Criteria: - Presence of esophageal disorders that may complicate transesophageal echocardiography (strictures, varices, fistula, prior esophageal surgery) - Presence of coagulopathy or other bleeding diathesis - Inability to tolerate brief periods of apnea - Presence of pulmonary vascular disease - Pregnant women will not be included in this study because the potential fetal hypoxemia is not an acceptable risk. - No exclusions will be made based on gender or race.



Primary Contact:

Principal Investigator
Adnan Majid, MD
Beth Israel Deaconess Medical Center

Backup Contact:


Location Contact:

Boston, Massachusetts 02115
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source: ClinicalTrials.gov

Date Processed: October 09, 2019

Modifications to this listing: Only selected fields are shown, please use the link below to view all information about this clinical trial.

Click to view Full Listing

This study is not currently recruiting Study Participants on ClinicalConnection.com. The form below is not enabled.