Suspension laryngoscopy-assisted percutaneous dilatational tracheostomy in high-risk patients

Suspension laryngoscopy-assisted percutaneous dilatational tracheostomy: a safe method in COVID-19

Objective

COVID-19 respiratory insufficiency has augmented demand of tracheostomies in intubated patients. Herein, we analyse our experience with suspension laryngoscopy-assisted percutaneous dilatational tracheostomy (SL-PDT) to assess the safety for both healthcare personnel and patients.

Methods

We conducted a retrospective review of all patients who underwent SL-PDT in the Intensive Care Unit (ICU) between March 13 and April 17, 2020 (first peak of SARS-CoV-2 pandemic).

Results

We included 28 SL-PDTs conducted in the ICU by a single operator using standard personal protective equipment (PPE) for high-risk procedures. The average procedure time was 30 minutes. Intraoperative complications were few, mild and promptly resolved. No operators were infected after the procedure.

Conclusions

SL-PDT is a safe and quick technique: it is preferable to open surgical procedures, where air-flow cessation cannot be achieved and droplet emission is high. The cost/benefit ratio is low. A disadvantage is the need for an ENT surgeon who is familiar with direct laryngoscopy, with the main difficulty being the exposure of the upper airways. Minimal air leakage and good control of occasional bleeding makes it a safe procedure for the patient and medical personnel alike.

Tracheotomy in the SARS-CoV-2 pandemic

The severe acute respiratory syndrome (SARS)-CoV-2 pandemic continues to produce a large number of patients with chronic respiratory failure and ventilator dependence. As such, surgeons will be called upon to perform tracheotomy for a subset of these chronically intubated patients. As seen during the SARS and the SARS-CoV-2 outbreaks, aerosol-generating procedures (AGP) have been associated with higher rates of infection of medical personnel and potential acceleration of viral dissemination throughout the medical center. Therefore, a thoughtful approach to tracheotomy (and other AGPs) is imperative and maintaining traditional management norms may be unsuitable or even potentially harmful. We sought to review the existing evidence informing best practices and then develop straightforward guidelines for tracheotomy during the SARS-CoV-2 pandemic. This communication is the product of those efforts and is based on national and international experience with the current SARS-CoV-2 pandemic and the SARS epidemic of 2002/2003.

Evaluation of percutaneous dilatational tracheostomy under laryngosuspension

PURPOSE

To describe the technique and outcomes of percutaneous tracheostomy under laryngosuspension.

METHODS

A consecutive series of patients who underwent percutaneous tracheostomy under laryngosuspension were reviewed for outcomes. The procedure is performed under general anesthesia and laryngosuspension. An 8.5 oral endotracheal tube is inserted and the cuff is inflated in the supraglottis, allowing access to the whole trachea and subglottis. The tube is taped to the laryngoscope. A rigid endoscope is inserted in the endotracheal tube through a swivel connector connected to the tube and the ventilation circuit. Percutaneous tracheostomy kit is used to perform dilatational tracheostomy at the desired level of the trachea under direct visual endoscopic control.

RESULTS

Forty-eight patients underwent percutaneous tracheostomy under laryngosuspension. Thirty-two cases were performed in an emergency after securing the airway with endotracheal intubation. In all other cases, tracheostomy was performed as a part of an elective procedure affecting the airway or in patients requiring prolonged ventilation. More than half of patients were considered high risk by virtue of one or more of the following: morbid obesity, prior neck surgery, prior neck radiotherapy, progressive head and neck cancer, or laryngotracheal stenosis. Complications occurred in seven cases.

CONCLUSION

Percutaneous tracheostomy under laryngosuspension has the advantage of optimal control of patient ventilation and hemostasis throughout the procedure. High-quality endoscopic vision and easy access to the airway under laryngosuspension allow tracheostomy to be performed with maximum safety.

A Modified Translaryngeal Tracheostomy Technique in the Neurointensive Care Unit. Rationale and Single-center Experience on 199 Acute Brain-damaged Patients

BACKGROUND

Brain-injured patients frequently require tracheostomy, but no technique has been shown to be the gold standard for these patients. We developed and introduced into standard clinical practice an innovative bedside translaryngeal tracheostomy (TLT) technique aided by suspension laryngoscopy (modified TLT). During this procedure, the endotracheal tube is left in place until the airway is secured with the new tracheostomy. This study assessed the clinical impact of this technique in brain-injured patients.

MATERIALS AND METHODS

This is a retrospective analysis of prospectively collected data from adult brain-injured patients who had undergone modified TLT during the period spanning from January 2010 to December 2016 at the Neurointensive care unit, San Gerardo Hospital (Monza, Italy). The incidence of intraprocedural complications, including episodes of intracranial hypertension (intracranial pressure [ICP] >20 mm Hg), was documented. Neurological, ventilatory, and hemodynamic parameters were retrieved before, during, and after the procedure. Risk factors for complications and intracranial hypertension were assessed by univariate logistic analysis. Data are presented as n (%) and median (interquartile range) for categorical and continuous variables, respectively.

RESULTS

A total of 199 consecutive brain-injured patients receiving modified TLT were included. An overall 52% male individuals who were 66 (54 to 74) years old and who had an admission Glasgow Coma Scale of 7 (6 to 10) were included in the cohort. Intracerebral hemorrhage (30%) was the most frequent diagnosis. Neurointensivists performed 130 (65%) of the procedures. Patients underwent tracheostomy 10 (7 to 13) days after intensive care unit admission. Short (ie, <2 min) and clinically uneventful increases in ICP>20 mm Hg were observed in 11 cases. Overall, the procedure was associated with an increase in ICP from 7 (4 to 10) to 12 (7 to 18) mm Hg (P<0.001). Compared with baseline, cerebral perfusion pressure (CPP), respiratory variables, and hemodynamics were unchanged during the procedure (P-value, not significant). Higher baseline ICP and core temperature were associated with an increased risk of complications and intracranial hypertension. Complication rates were low: 1 procedure had to be converted to a surgical tracheostomy, and 1 (0.5%) episode of minor bleeding and 5 (2.5%) of minor non-neurological complications were recorded. Procedures performed by intensivists did not have a higher risk of complications compared with those performed by ear, nose, and throat specialists.

CONCLUSIONS

A modified TLT (by means of suspension laryngoscopy) performed by neurointensivists is feasible in brain-injured patients and does not adversely impact ICP and CPP.

Technical Improvements of Difficult Tracheotomy

The aim of this study was to explore the application value of technical improvements of difficult tracheotomy. Percutaneous dilatational tracheotomy kit combined with traditional surgical tracheotomy was performed on seven patients with various types of difficult tracheotomy surgery from Jan. 2011 to Mar. 2013 in our hospital. The indicators, such as difficulty degree and intraoperative peripheral oxygen saturation changes of each patient, were assessed and analyzed. The average operating time was 20 min (from the beginning of skin incision to the implantation of the tracheal tube), and the time from cutting out tracheal cartilage rings to completely implanting tracheal tube was with 2 min; the intraoperative oxygen saturation degrees were all above 92 %. There were no serious complications, such as intraoperative hemorrhea, asphyxia, cardiac arrest, or others, and no complications, such as postoperative bleeding, pneumothorax, cervical spinal cord injury, tracheal stenosis, tracheoesophageal fistula, or others, appeared. The technical improvements used in difficult tracheotomy could reduce the risk of surgery, difficulties of the surgical operation and postoperative complications and make the operation much more easy and more suitable for the clinical application.

Safety analysis of percutaneous dilational tracheostomies with bronchoscopy in the obese patient

OBJECTIVES/HYPOTHESIS

Since originally described in 1985 by Ciaglia, percutaneous dilational tracheostomy (PDT) has grown in popularity, and today is widely used for critically ill patients requiring long-term mechanical ventilation. Since the inception of PDT, obesity has been considered a relative contraindication to its use. The purpose of this study is to evaluate the risks of PDT in obese patients.

STUDY DESIGN

Retrospective review.

METHODS

A retrospective review was performed of prospectively collected data from 426 patients who underwent PDT at a single teaching institution from July 2003 to October 2009. The groups were separated into those who had a body mass index (BMI) of <30 or ≥30 kg/m(2) . The following variables were collected: blood loss at the time of procedure, difficulty in tracheotomy dilation and/or tracheostomy placement, presence of tracheal ring breaks, any bleeding episodes requiring treatment by surgery or blood transfusion, pre- and postprocedure pneumonia, and stoma infection requiring antibiotics. All tracheostomies were placed using the Ciaglia Blue Rhino Introducer Kit (Cook Medical Inc., Bloomington, IN). Statistical analysis was performed with nonparametric statistics using χ(2) testing with P < .05 as significant.

RESULTS

No statistically significant difference was found between the obese and nonobese groups for any of the variables studied. Similar results were found when BMI of 40 was used for grouping.

CONCLUSIONS

PDT can be performed safely in obese patients. There were no statistically significant differences in measured variables found between the two study groups. This study supports the use of intensive care unit bedside PDT in the obese population.