Advertisement

Topics

Effects of Tracheal Tube Size on Pulmonary Aspiration

2014-08-27 03:16:16 | BioPortfolio

Summary

Fluid leak around the cuff is minimized when the endotracheal tube size is small relative to the size of the trachea. In the current study, the investigators assess the influence of different HVLP endotracheal tube size on fluid leakage around the cuff in a benchtop model and in anesthetized patients.

Description

The use of a high-volume and low-pressure (HVLP) endotracheal cuff has reduced the cuff-induced tracheal damage because the cuff conforms passively to tracheal contours as it expands during inflation and the cuff inflation pressure is assumed to be equal to cuff-to-trachea pressure. However, longitudinal folds of a HVLP cuff occur on inflation within the trachea, as the diameter of the cuff is greater than that of the trachea, and these folds provide channels for an aspiration or gas leakage.

Silent aspiration of upper airway secretions has been reported in patients undergoing general anesthesia and in the intensive care unit (ICU). A previous study reported the 83% aspiration of subglottic dye detected by bronchoscopy in anesthetized patients, and other study of intubated patients with HVLP cuffs in the ICU showed 87% aspiration rate.

Intubation-related (ventilator associated pneumonia) pneumonia is a leading cause of prolongation of hospital stay, mortality and morbidity during the postoperative period and in the ICU. Therefore, it is important to achieve a better seal around the cuff without tracheal damage, which would reduce the incidence of pneumonia in intubated patients.

A previous benchtop study demonstrated that the leak around the cuff is minimized when the endotracheal tube size is small relative to the size of the trachea. In the current study, we assess the influence of different HVLP endotracheal tube size on fluid leakage around the cuff in a benchtop model and in anesthetized patients.

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

The Reduction of Aspiration Rate in Intubated Patients

Intervention

Observation of fluid leakage around tracheal tube cuffs

Location

Seoul National University Bundang Hospital
Gyeonggi-do
Korea, Republic of
463-707

Status

Not yet recruiting

Source

Seoul National University Bundang Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:16-0400

Clinical Trials [1681 Associated Clinical Trials listed on BioPortfolio]

Prevention Inhalation of Bacterial by Using Endotracheal Tube Balloon Polyvinyl Chloride or Polyurethane

A number of techniques have been recommended for the prevention of ventilator acquired pneumonia (VAP). These techniques - such as patient positioning, continuous sub-glottic suction of th...

Endotracheal Tubes to Prevent Ventilator-Associated Pneumonia

Researchers are looking at two different types of breathing tubes to see if one is better than the other at preventing pneumonia. One of the tubes has a design features to prevent leakage ...

Postoperative Analgesic Requirements for the ProSeal Laryngeal Mask Airway Versus the Tracheal Tube in Females Undergoing Gynecological Laparoscopic Surgery

The ProSeal laryngeal mask airway is a relatively new airway device with a modified cuff to increase the seal and a drain tube to provide a channel for regurgitated fluid, prevention of ga...

Utility of Tracheal Ultrasonography for the Confirmation of the Endotracheal Tube Placement

The aim of this study is to compare tracheal ultrasound with direct visualization of tracheal rings for the confirmation of endotracheal tube placement in intubated patients. We hypothesiz...

The Ornge Comparison of Tracheal Occlusion Pressures to Ensure Safety Trial

Patients who are intubated (breathing tube in windpipe) are often transported by air ambulance. Changes in atmospheric pressure during flight may cause pressure increases in the air-fille...

PubMed Articles [9162 Associated PubMed Articles listed on BioPortfolio]

Using middle finger length to determine the internal diameter of uncuffed tracheal tubes in paediatrics.

The selection of an appropriately-sized tracheal tube is of critical importance in paediatric patients to reduce both the risk of subglottic stenosis from a tracheal tube that is too large, and inadeq...

Tracheal injury characterized by subcutaneous emphysema and dyspnea after improper placement of a Sengstaken-Blakemore tube: A case report.

Tracheal injury characterized by subcutaneous emphysema and dyspnea can occur following the use of a Sengstaken-Blakemore tube. Should tracheal injury occur, it may be possible to manage resultant air...

Use of tracheal ultrasound combined with clinical parameters to select left double-lumen tube size: A prospective observational study.

Left double-lumen tubes (LDLTs) are used in thoracic surgery to allow one-lung ventilation. Their size is usually chosen on the basis of clinical parameters (height, sex). Double-lumen endobronchial t...

Venovenous extracorporeal membrane oxygenation for the management of critical airway stenosis.

Venovenous extracorporeal membrane oxygenation (VV-ECMO) is used not only support gas transfer of patients suffering from respiratory failure, but also to manage hypoxic patients with critical airway ...

Erosion rates of 3.5 cm artificial urinary sphincter cuffs are similar to larger cuffs.

To compare long term outcomes and erosion rates of 3.5 cm artificial urinary sphincter (AUS) cuffs versus larger cuffs among men with stress urinary incontinence (SUI), with and without a history of p...

Medical and Biotech [MESH] Definitions

Discharge of cerebrospinal fluid through the external auditory meatus or through the eustachian tube into the nasopharynx. This is usually associated with CRANIOCEREBRAL TRAUMA (e.g., SKULL FRACTURE involving the TEMPORAL BONE;), NEUROSURGICAL PROCEDURES; or other conditions, but may rarely occur spontaneously. (From Am J Otol 1995 Nov;16(6):765-71)

Leakage and accumulation of CEREBROSPINAL FLUID in the subdural space which may be associated with an infectious process; CRANIOCEREBRAL TRAUMA; BRAIN NEOPLASMS; INTRACRANIAL HYPOTENSION; and other conditions.

The act of regarding attentively and studying facts and occurrences, gathering data through analyzing, measuring, and drawing conclusions, with the purpose of applying the observed information to theoretical assumptions. Observation as a scientific method in the acquisition of knowledge began in classical antiquity; in modern science and medicine its greatest application is facilitated by modern technology. Observation is one of the components of the research process.

A tube of ectodermal tissue in an embryo that will give rise to the CENTRAL NERVOUS SYSTEM, including the SPINAL CORD and the BRAIN. Lumen within the neural tube is called neural canal which gives rise to the central canal of the spinal cord and the ventricles of the brain. For malformation of the neural tube, see NEURAL TUBE DEFECTS.

Fluid accumulation within the PERICARDIUM. Serous effusions are associated with pericardial diseases. Hemopericardium is associated with trauma. Lipid-containing effusion (chylopericardium) results from leakage of THORACIC DUCT. Severe cases can lead to CARDIAC TAMPONADE.

More From BioPortfolio on "Effects of Tracheal Tube Size on Pulmonary Aspiration"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Anesthesia
Anesthesia is the loss of feeling or sensation in all or part of the body. It may result from damage to nerves or can be induced by an anesthetist (a medical professional) using anesthetics such as thiopental or propofol or sevoflurane during a surgical ...

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 ...

Pneumonia
Pneumonia (bronchopneumonia, lobar pneumonia and double pneumonia) is inflammation (swelling) of the tissue in one or both of your lungs. It is usually caused by an pneumococcal infection caused by bacteria called Streptococcus pneumoniae.  However,...


Searches Linking to this Trial