Clinical Research Directory

Effect of Thickened Feeds on Swallow Physiology in Children With Dysphagia

This study will examine the effects of varying liquid viscosity on swallow physiology in infants with oropharyngeal dysphagia and brief resolved unexplained event (BRUE) and other children with dysphagia that would be at risk for symptoms of swallow dysfunction.

Gastric Ultrasound in Pediatric Trauma Patients

Gastric ultrasound has become increasingly utilized to examine volume and quality of gastric contents in the preoperative setting to guide anesthetic management and relay risk of aspiration in both adult and pediatric medicine. Gastric fluid volumes in trauma patients are thought to be elevated due to delayed gastric emptying in the setting of an over-attenuated sympathetic response to physical pain and stress, opioid analgesia, and other associated injuries (traumatic brain). However, there is a paucity of literature examining gastric fluid volumes (GFV), measured by gastric ultrasound, in the pediatric trauma population. The purpose of the study is to assess whether preoperative gastric ultrasound is an accurate method to identify pediatric trauma patients who have elevated GFV (\>0.8mL/kg) and high-risk gastric contents (solids, complex liquids, in addition to large volumes).

Non-inferiority of Continuing Oral Intake Versus Fasting in Patients With Acute Respiratory Failure

Fasting in intensive care is mainly studied in mechanically ventilated patients or those in the weaning phase. Recent research challenge the common assumption of fasting and suggests that continuing enteral nutrition before extubation may be beneficial. Fasting is also practiced before procedures (e.g., tracheostomy, endoscopy) or surgeries, based on anesthetic guidelines. Yet, no data address fasting in non-intubated ICU patients with acute respiratory failure, despite frequent caloric deficits and inadequate nutritional intake. Aspiration risk often justifies fasting, but studies indicate that swallowing reflexes remain intact in patients receiving high-flow nasal oxygen or non-invasive ventilation. Moreover, although intubation carries a 2-5.9% aspiration risk, rapid sequence induction mitigates this, questioning the necessity of preventive fasting. Despite its prevalence, this practice lacks scientific validation and guideline support. Patient discomfort is also significant. Hunger and thirst are major sources of distress, and evidence from anesthesiology suggests that allowing fluid intake pre-anesthesia reduces discomfort. Extrapolating these findings to ICU patients could improve well-being. In conclusion, fasting in ICU patients may contribute to discomfort, dehydration, and malnutrition, while its protective benefits remain uncertain. We hypothesize that maintaining oral intake does not increase the risk of intubation or aspiration-related complications.

The Use of High Bile-Binding Foods to Reduce Upper Gastrointestinal Bile Acid Concentrations (Aim 3)

Using a longitudinal cohort design, we will compare the impact of a high BA-binding blenderized diet compared to a low BA-binding blenderized diet and an amino acid-based formula, on gastrointestinal and pulmonary hospitalization and emergency room visit rates over six months.

The Use of High Bile-binding Foods to Reduce Upper Gastrointestinal Bile Acid Concentrations (Aim 1)

We will perform an acute physiology study comparing three different diets-an amino acid-based formula, a low bile acid-binding blenderized diet, or a high bile acid-binding blenderized diet administered through gastrostomy tube. We will determine the differences in gastric and salivary bile acid concentrations between participants over the 4 hour post-prandial timeframe. Participants who regularly receive an amino acid-based formula will receive an amino acid-based formula during the study and participants who regularly receive a blenderized feed will receive a blenderized feed during the study. Only participants who regularly receive blenderized feeds will be randomized to receive either the high or low bile acid binding blenderized feed.

The Use of High Bile-binding Foods to Reduce Upper Gastrointestinal Bile Acid Concentrations (Aim 2)

Using a four-week randomized, crossover study design, we will assess the impact of 2 weeks of a high bile acid-binding blenderized diet, compared to 2 weeks of a low bile acid-binding blenderized diet, on gastric and salivary bile acid concentrations within individual participants. Four weeks of an amino acid formula will be a comparator group.

Effect of the Aspiration Care Bundle on Preventing VAP

Many pharmacological and non-pharmacological interventions are used to prevent ventilator-associated pneumonia (VAP). Nurses are directly responsible for implementing non-pharmacological interventions and therefore have an important role in preventing VAP. The most important non-pharmacological nursing interventions to prevent VAP are hand hygiene and oral care. In addition, the head of the bed should be elevated to 30°-45°, head pressure should be monitored, and subglottic aspiration should be performed. Various care packages have been developed to prevent VAP. It has been determined that these care packages reduce the incidence of VAP. The aim of this study was to investigate the effect of the aspiration care package applied in the intensive care unit on preventing the development of ventilator-associated pneumonia, and it was planned as a quasi-experimental study.

Assessment of Laryngopharyngeal Sensation: Cancer Survivor Cohort

A previous study completed in 2022 (NCT05158179) was conducted using cohorts of healthy controls, and adults with general laryngopharyngeal disorders. This study will expand on the previous research to include a separate cohort of adults being seen in clinic for an existing laryngopharyngeal disorder resulting from previous radiation or other cancer treatments.

Aspiration in Acute Respiratory Failure Survivors 2

The purpose of this study is to learn more about problems with swallowing that could develop in patients who are very sick and need a machine to help them breathe.