Assessment of scoring systems to describe the position of tracheostomy tubes within the airway - the lunar study

Implementation of an evidence-based accidental tracheostomy dislodgement bundle in a community hospital critical care unit

BACKGROUND

Tracheostomy dislodgment can lead to catastrophic neurological injury or death. A fresh tracheostomy amplifies the risk of such events, where an immature tract predisposes to false passage. Unfortunately, few resources exist to prepare healthcare professionals to manage this airway emergency.

AIM

To create and implement an accidental tracheostomy dislodgement (ATD) bundle to improve knowledge and comfort when responding to ATD.

MATERIALS & METHODS

A multidisciplinary team with expertise in tracheostomy developed a 3-part ATD bundle including (1) Tracheostomy Dislodgement Algorithm, (2) Head of Bed Tracheostomy Communication Tool and (3) Emergency Tracheostomy Kit. The team tested the bundle during the COVID-19 pandemic in a community hospital critical care unit with the engagement of nurses and Respiratory Care Practitioners. Baseline and post-implementation knowledge and comfort levels were measured using Dorton's Tracheotomy Education Self-Assessment Questionnaire, and adherence to protocol was assessed. Reporting follows the revised Standards for Quality Improvement Reporting Excellence (SQUIRE).

RESULTS

Twenty-four participants completed pre-test and post-test questionnaires. The median knowledge score on the Likert scale increased from 4.0 (IQR = 1.0) pre-test to 5.0 (IQR = 1.0) post-test. The median comfort level score increased from 38.0 (IQR = 7.0) pre-test to 40.0 (IQR = 5.0) post-test). In patient rooms, adherence was 100% for the Head of Bed Tracheostomy Communication Tool and Emergency Tracheostomy Kit. The adherence rate for using the Dislodgement Algorithm was 55% in ICU and 40% in SCU.

DISCUSSION

This study addresses the void of tracheostomy research conducted in local community hospitals. The improvement in knowledge and comfort in managing ATD is reassuring, given the knowledge gap among practitioners demonstrated in prior literature. The ATD bundle assessed in this study represents a streamlined approach for bedside clinicians - definitive management of ATD should adhere to comprehensive multidisciplinary guidelines.

CONCLUSIONS

ATD bundle implementation increased knowledge and comfort levels with managing ATD. Further studies must assess whether ATD bundles and other standardised approaches to airway emergencies reduce adverse events. Relevance to Clinical Practice A streamlined intervention bundle employed at the unit level can significantly improve knowledge and comfort in managing ATD, which may reduce morbidity and mortality in critically ill patients with tracheostomy.

Incidence and determinants of malpositioning tracheostomy tubes in critically ill adult patients

Tracheostomy tubes are chosen primarily based on their internal diameter; however, the length of the tube may also be important. We performed a prospective clinical audit of 30 critically ill patients following tracheostomy to identify the type of tracheostomy tube inserted, the incidence of malpositioning and the factors associated with the need to change the tracheostomy tube subsequently. Anthropometric neck measurements, distance between the skin and tracheal rings and the position of the tracheostomy cuff relative to the tracheal stoma were recorded and analysed. Malpositioning of the tracheostomy tube was noted in 20%, with a high riding cuff being the most common cause of malpositioning, resulting in an audible leak and a need to change the tracheostomy tube subsequently. A high riding cuff was more common when a small tracheostomy tube (e.g. Portex (Smiths Medical Australasia, Macquarie Park, NSW) ≤8.0 mm internal diameter with length <7.5 cm) was used, with risk further increased when the patient's skin to trachea depth was greater than 0.8 cm. Identifying a high riding cuff relative to the tracheal stoma confirmed by a translaryngeal bronchoscopy strongly predicted the risk of air leak and the need to change the tracheostomy tube subsequently. Our study suggests that when a small (and short) tracheostomy tube is planned for use, intraoperative translaryngeal bronchoscopy is warranted to exclude malpositioning of the tracheostomy tube with a high riding cuff.

[The Difficult Airway with Tracheostomy - Manufacturing of an Individualized Tracheal Tube with Modern Imaging and 3D Printing]

Case discussion of a 51-year-old female patient with ventilator dependency due to Charcot-Marie-Tooth-Hoffmann syndrome (HMSN I) and cervical spinal fusion with complex tracheal canula management. Following 16 years of noninvasive ventilation due to chronic hypercapnic failure with 24 hour dependency on the ventilator, an elective surgical tracheostomy and switch to invasive ventilation was carried out. Because of severe cervical scoliosis, common tracheal canulae could not provide an adequate fit. With development of a 3D model according to the CT scans of the patient, an individualized tracheal tube was customized that provided excellent ventilatory results and the ability to speak during invasive ventilation.

Tracheostomy in the COVID-19 era: global and multidisciplinary guidance

Global health care is experiencing an unprecedented surge in the number of critically ill patients who require mechanical ventilation due to the COVID-19 pandemic. The requirement for relatively long periods of ventilation in those who survive means that many are considered for tracheostomy to free patients from ventilatory support and maximise scarce resources. COVID-19 provides unique challenges for tracheostomy care: health-care workers need to safely undertake tracheostomy procedures and manage patients afterwards, minimising risks of nosocomial transmission and compromises in the quality of care. Conflicting recommendations exist about case selection, the timing and performance of tracheostomy, and the subsequent management of patients. In response, we convened an international working group of individuals with relevant expertise in tracheostomy. We did a literature and internet search for reports of research pertaining to tracheostomy during the COVID-19 pandemic, supplemented by sources comprising statements and guidance on tracheostomy care. By synthesising early experiences from countries that have managed a surge in patient numbers, emerging virological data, and international, multidisciplinary expert opinion, we aim to provide consensus guidelines and recommendations on the conduct and management of tracheostomy during the COVID-19 pandemic.