View clinical trials related to Bronchoscopy.
Filter by:The purpose of this study is to find the best sedation necessary for patients undergoing bronchoscopy. Patients are randomized to three different regimes of sedation during bronchoscopy were studied: 1. - Group standard/control: local anesthesia only(C) 2. - Group alfentanil + local anesthesia(A) 3. - Group dexmedetomidine + local anesthesia(D) The primary endpoint is the bronchoscopy score. Secondary endpoints are: Level of sedation and tolerance bronchoscopy examination. Measured parameters on the safety of examination are: the lowest saturation, needs to supplemental oxygen, amnesia , choking sensation or chest pain and if the patient is ready or not to undertake bronchoscopy second time in his life if necessary. Endtidal CO2, Respiratory rate, Blood pressure, Heart rate, level of oxygen are collected every 5 minutes before, during and after the bronchoscopy.
Electrical Impedance Tomography (EIT)is a technique based on the injection of small currents and voltage measurements using electrodes on the skin surface generating cross-sectional images representing impedance change in a slice of the thorax. It is a radiation free, non-invasive and portable lung imaging technique. Impedance changes in lung ventilation are investigated in mechanically ventilated patients who routinely undergo bronchoscopy in intensive care medicine. Bronchoscopy is performed to suction secretions as well as to analyze the secretions to recognize inflammations and diseases. It is an essential intervention which causes changes in ventilation which remain for 1-2 hours. It is not completely investigated why these changes in ventilation remain for so long time and how they are distributed regionally. Therefore the purpose of this study is to investigate the change in pulmonary regional ventilation in patients who routinely undergo bronchoscopy to possibly generate ideas how to optimize the ventilation after bronchoscopy to optimize the patient´s treatment.
The purpose of this study is to evaluate the upper airway collapsibility by sleep endoscopy in different sedative levels. Propofol pump infusion will be used to achieve conscious sedation. Bispectral Index monitor will be applied to the monitor the conscious level. Two different sedative levels (BIS 65-75, 50-60) will be achieved for upper airway evaluation. The severities of upper airway obstruction will be evaluated the correlation to the disease severities. Mandible advancement will be done to evaluate the response for oral appliance.
The purpose of this study is to learn if chemicals from the mouth or stomach can be found in the lungs. This may suggest a process called aspiration. This study may help us understand if aspiration plays a role in different lung diseases.
Purpose: Previous studies suggested an increased diagnostic yield for bronchoscopic (FB) transbronchial needle aspirate (TBNA) specimens from mediastinal lymph nodes when using rapid on-site evaluation by cytopathology (ROSE) but were limited by lack of randomization. The investigators performed the first randomized-prospective trial comparing ROSE(R) to no on-site cytopathology assessment (NR). Methods: All patients referred were eligible. 78 patients were randomized to R or NR groups. For R procedures, further specimens were deferred until results were available from the on-site cytopathologist. Diagnoses made by all procedures were recorded. The primary end-points were specimen adequacy and diagnostic yield.
Bronchoscopy is performed on a daily basis for diagnostic and therapeutic purposes. This procedure may cause anxiety and discomfort requiring the use of sedative drugs. In this study the investigators titrate the administration of sedatives using bispectral analysis of the EEG. The investigators compared 2 drugs, propofol versus midazolam regarding patient subjective tolerance, recovery of brain function, safety and operator's satisfaction.
The purpose of this study is to evaluate the safety and feasibility of the Chartis System in measuring air flow and pressures in isolated lung compartments during bronchoscopy.
This study will collect fluid and tissue specimens from the lungs and nose of healthy people and people with a history of lung infections. The specimens will be examined for differences between the two groups that may be associated with susceptibility to certain infections. Healthy normal volunteers and people with a history of lung infections between 18 and 75 years of age who are followed at NIH may be eligible for this study. Participants undergo the following procedures: Medical history and physical examination. Blood and urine tests. Electrocardiogram (ECG) and chest x-ray. Treadmill exercise stress test (for people over 45 years old with a history of chest pain or ECG abnormalities). Bronchoscopy: The subject s nose and throat are numbed with lidocaine and a sedative is given for comfort. A thin flexible tube called a bronchoscope is advanced through the nose or mouth into the lung airways to examine the airways carefully. Fluid collection during the bronchoscopy using one of the following methods: - Bronchoalveolar lavage: Salt water is injected through the bronchoscope into the lung and immediately suctioned out, washing off cells lining the airways. - Bronchial brushings: A brush-tipped wire enclosed in a sheath is passed through the bronchoscope and a small area of the airway tissue is gently brushed. The brush is withdrawn with some tissue adhering to it. - Endobronchial biopsies: Small pinchers on a wire are passed through the bronchoscope and about 1 to 2 millimeters of tissue is removed. - Nasal scrape: A small device is used to scrape along the inside of the nose to collect some cells. - Sputum induction - Exhaled breath condensate to obtain specimens for in vitro investigations and comparisons of both the cellular and acellular components. - Nasal nitric oxide production - Nasal potential difference - Exhaled aerosol mask sample collection - Cough aerosol collection - Exhaled particle collection - Lung Clearance Index (LCI)
Passing a bronchoscope through the airways frequently causes a stress response even though patients are sedated. This stress response is usually an increase in pulse and blood pressure, which may have undesirable effects on the heart and circulation. We plan to give patients labetalol (a beta blocker which reduces pulse and blood pressure) in addition to normal sedation, to patients undergoing bronchoscopy in our department.
Very often patients receive medication before a diagnostic, therapeutic, or surgical procedure to help them relax, keep them calm, and to relieve them from pain. This is called procedural sedation. During procedural (mild-to-moderate) sedation, a patient is first given a pain-relief medication (analgesic) and then a medication to help him/her relax and keep him/her calm (sedative). Propofol is the drug commonly used for sedation because it releases immediately into the blood stream and causes fast sedation. AQUAVAN (fospropofol disodium) is made as a slow release version of propofol with a longer duration of effect.