Dysphagia occurs in 11% to 93% of patients following tracheostomy. Despite its benefits, the tracheostomy often co-exists with dysphagia given its anatomical location, the shared pathway of the respiratory and alimentary systems, and the medical complexities necessitating the need for the artificial airway. When tracheostomy weaning commences, it is often debated whether the methods used facilitate swallowing recovery. We conducted a systematic review to determine whether tracheostomy modifications alter swallowing physiology in adults. We searched eight electronic databases, nine grey literature repositories and conducted handsearching. We included studies that reported on oropharyngeal dysphagia as identified by instrumentation in adults with a tracheostomy. We accepted case series (n > 10), prospective or retrospective observational studies, and randomized control trials. We excluded patients with head and neck cancer and/or neurodegenerative disease. Two independent and blinded reviewers rated abstracts and articles for study inclusion. Data abstraction and risk of bias assessment was conducted on included studies. Discrepancies were resolved by consensus. A total of 7079 citations were identified, of which, 639 articles were reviewed, with ten articles meeting our inclusion criteria. The studies were heterogeneous in study design, patient population, and outcome measures. For these reasons, we presented our findings descriptively. All studies were limited by bias risk. This study highlights the limitations of the evidence and therefore the inability to conclude whether tracheostomy modifications alter swallowing physiology.

Objectives: Tracheostomy and dysphagia often coexist during critical illness; however, given the patient’s medical complexity, understanding the evidence to optimize swallowing assessment and intervention is challenging. The objective of this scoping review is to describe and explore the literature surrounding swallowing and tracheostomy in the acute care setting. Data Sources: Eight electronic databases were searched from inception to May 2017 inclusive, using a search strategy designed by an information scientist. We conducted manual searching of 10 journals, nine gray literature repositories, and forward and backward citation chasing. Study Selection: Two blinded reviewers determined eligibility according to inclusion criteria: English-language studies reporting on swallowing or dysphagia in adults (≥ 17 yr old) who had undergone tracheostomy placement while in acute care. Patients with head and/or neck cancer diagnoses were excluded. Data Extraction: We extracted data using a form designed a priori and conducted descriptive analyses. Data Synthesis: We identified 6,396 citations, of which 725 articles were reviewed and 85 (N) met inclusion criteria. We stratified studies according to content domains with some featuring in multiple categories: dysphagia frequency (n = 38), swallowing physiology (n = 27), risk factors (n = 31), interventions (n = 21), and assessment comparisons (n = 12) and by patient etiology. Sample sizes (with tracheostomy) ranged from 10 to 3,320, and dysphagia frequency ranged from 11% to 93% in studies with consecutive sampling. Study design, sampling method, assessment methods, and interpretation approach varied significantly across studies. Conclusions: The evidence base surrounding this subject is diverse, complicated by heterogeneous patient selection methods, design, and reporting. We suggest ways the evidence base may be developed.