Our hypothesis was that the simultaneous activation of tongue protrudor and retractor muscles (co-activation) would constrict and stiffen the pharyngeal airway more than the independent activation of tongue protrudor muscles. Upper airway stiffness was determined by injecting known volumes of air into the sealed pharyngeal airway of the anaesthetized rat while measuring nasal pressure under con...

Structural components of the airway wall may act to load airway smooth muscle and restrict airway narrowing. In this study, the effect of load on airway narrowing was investigated in pig isolated bronchial segments. In some bronchi, pieces of cartilage were removed by careful dissection. Airway narrowing was produced by maximum electrical field stimulation. An endoscope was used to record lumen...

Airway management is both a fundamental skill and resuscitative treatment that has taken prominent role in emergency medicine. In the past few decades there have been many advancements airway particularly critically ill patients. Technology developed adapted to provide improved visualization for endotracheal intubation as well supportive strategies oxygenation optimization of medications. this ...

objectives: to compare the results of early versus late tracheostomy in trauma patients admitted to intensive care unit (icu). methods: this was case control study being performed at a major trauma centre in shiraz, iran including 120 trauma patients admitted to icu during a 2-year period and underwent tracheostomy during their icu stay. the patients were categorized into two groups of the earl...

conclusions propofol provided a safe and acceptable sedation for post-cabg surgical patients, significantly reduced the requirement for analgesics, and allowed for more rapid tracheal extubation than midazolam but did not result in earlier icu discharge. results the depth of sedation was almost the same in the two groups (rss=4.5 in midazolam group vs 4.7 in propofol group; p = 0.259) but the t...

Prader Willi (PWS) is the most common and rare genetic cause of obesity. Airway problems associated with obesity hypotonia, increased risk aspiration due to gastrointestinal (GI) motility hyperphagia, obstructive sleep apnea syndrome (OSAS), difficult airway management, postoperative respiratory failure narrow are factors that complicate anesthesia management. It should be noted there many anat...

The upper airway is a vital part of the respiratory tract. Although the upper airway serves several functions, protection of the airway and preservation of airway patency are the most essential functions subserved by upper airway reflexes. Various types of nerve endings have been identified in and under the epithelium of the upper airway, and afferent nerve endings are the natural starting of a...

BACKGROUND Apart from airway inflammation, airway remodeling is one of the main pathological features of asthma. However, it remains unclear when airway remodeling starts in children and whether it could be a potential therapeutic target in asthma. DATA SOURCES We have reviewed the recent literature regarding structural changes after airway remodeling, the relationship between airway inflamma...

Malignant airway obstruction and hemoptysis are common in lung cancer patients. Recently, airway stent is commonly used to preserve airway in malignant airway obstruction. Hemoptysis can be managed through various methods including conservative treatment, endobronchial tamponade, bronchoscopic intervention, embolization and surgery. In our case studies, we sought to investigate the effectivenes...

OBJECTIVE To determine the sensitivity and specificity of airway fluoroscopy in the diagnosis of pediatric laryngotracheal abnormalities. DESIGN Retrospective chart review. SETTING Tertiary care children's hospital. PATIENTS Thirty-nine children, with a mean age of 18 months at the time of evaluation, were evaluated for stridor. MAIN OUTCOME MEASURES Diagnoses made by airway fluoroscopy...