The Role of Tracheotomy and Timing of Weaning and Decannulation in Patients Affected by Severe COVID-19

Comparative impact of COVID-19 infection on tracheostomy patients

PURPOSE

We study outcomes after tracheostomy in COVID-19 positive patients versus COVID-19 negative patients who underwent tracheostomy during the same time frame in an effort to better understand the influence of COVID-19 despite variances in virus strain and treatment practices.

MATERIALS AND METHODS

This is a retrospective cohort study of all Veterans Affairs centers nationwide, using data provided by the Veterans Affairs Informatics and Computing Infrastructure. Our cohort consisted of veteran patients who underwent tracheostomy between March 2020 and September 2022. Patients who tested positive for COVID-19 within three months prior to tracheostomy were compared to patients who had never tested positive for COVID-19.

RESULTS

956 patients were included in the analysis, and nearly 96 % of these patients were male. The COVID-19 positive group spent one more week on the ventilator and experienced lower rates of successful ventilator weaning (hazard ratio 0.74, 95 % confidence interval [0.62, 0.88], P < 0.001). Survival curves were non-proportional, and while the COVID-19 positive group had higher 30-day mortality (relative risk 1.37, 95 % confidence interval [1.09, 1.73], P = 0.007), the COVID-19 negative group had higher long-term mortality.

CONCLUSIONS

Our findings suggest that while infection with COVID-19 has a significant effect on short-term outcomes after tracheostomy, chronic comorbidities seem to have the more enduring impact. In spite of prolonged ventilation and higher short-term mortality, tracheostomy in COVID-19 can be a positive intervention that does not necessarily predestine patients to the same level of long-term morbidity and mortality of typical tracheostomies.

Laryngotracheal Complications after Intubation for COVID-19: A Multicenter Study

Many of the patients with COVID-19 have suffered respiratory distress requiring prolonged endotracheal intubation (ETI) resulting in laryngotracheal complication with an impact on breathing, phonation, and swallowing. Our aim is to describe laryngeal injuries diagnosed after ETI in patients with COVID-19 in a multicentre study.

METHODS

A prospective descriptive observational study was conducted from January 2021 to December 2021, including COVID-19 patients with laryngeal complications due to ETI diagnosed in several Spanish hospitals. We analyzed the epidemiological data, previous comorbidities, mean time to ICU admission and ETI, need for tracheostomy, mean time on invasive mechanical ventilation until tracheostomy or weaning, mean time in ICU, type of residual lesions, and their treatment.

RESULTS

We obtained the collaboration of nine hospitals during the months of January 2021 to December 2021. A total of 49 patients were referred. Tracheostomy was performed in 44.9%, being late in most cases (more than 7-10 days). The mean number of days of ETI until extubation was 17.63 days, and the main post-intubation symptoms were dysphonia, dyspnea, and dysphagia, in 87.8%, 34.7%, and 42.9%, respectively. The most frequent injury was altered laryngeal mobility, present in 79.6%. Statistically, there is a greater amount of stenosis after late ETI and after delayed tracheostomy, not observing the data with the immobility alterations.

CONCLUSION

The mean number of days of ETI was long, according to the latest guidelines, with the need for several cycles of pronation. This long ETI may have had an impact on the increase of subsequent laryngeal sequelae, such as altered laryngeal mobility or stenosis.

Outcomes of Surgical Tracheostomy on Mechanically Ventilated COVID-19 Patients Admitted to a Private Tertiary Hospital in Tanzania

OBJECTIVES

 The coronavirus disease 2019 (COVID-19) pandemic has resulted in an increase in the number of patients necessitating prolonged mechanical ventilation. Data on patients with COVID-19 undergoing tracheostomy indicating timing and outcomes are very limited. Our study illustrates--- outcomes for surgical tracheotomies performed on COVID-19 patients in Tanzania.

METHODS

 This was a retrospective observational study conducted at the Aga Khan Hospital in Dar es Salaam, Tanzania.

RESULTS

 Nineteen patients with COVID-19 underwent surgical tracheotomy between 16^th March and 31^st December 2021. All surgical tracheostomies were performed in the operating theatre. The average duration of intubation prior to tracheotomy and tracheostomy to ventilator liberation was 16 days and 27 days respectively. Only five patients were successfully liberated from the ventilator, decannulated, and discharged successfully.

CONCLUSIONS

 This is the first and largest study describing tracheotomy outcomes in COVID-19 patients in Tanzania. Our results revealed a high mortality rate. Multicenter studies in the private and public sectors are needed in Tanzania to determine optimal timing, identification of patients, and risk factors predictive of improved outcomes.

Quality tracheotomy care can be maintained for non-COVID patients during the COVID-19 pandemic

Objectives

To analyze changes in tracheotomy practices at the onset of the COVID-19 pandemic, and determine if quality patient care was maintained.

Methods

This was a single institution retrospective study that included patients undergoing tracheotomy from May 2019 to January 2021. Patients were divided into two groups, pre-COVID and post-COVID. Only three patients tested positive for COVID-19, and they were excluded from the study. Data were collected from the electronic medical record. Statistical analyses were performed using 2-tailed independent t tests, Wilcoxon Rank Sum tests, Chi-Square tests, and Kaplan-Meier curves.

Results

There were 118 patients in the pre-COVID group and 91 patients in the post-COVID group. The main indication for tracheotomy in both groups was prolonged intubation. There were no significant differences in overall length of stay, time to tracheotomy, duration of tracheotomy procedure, or time to initial tracheotomy change between the two groups. Due to protocols implemented at our institution to limit viral transmission, there were significant increases in the percent of tracheotomies performed in the OR (p = .02), and those performed via open technique (p = .04). Additionally, the median time to decannulation significantly decreased in the post-COVID group (p = .02).

Conclusion

Several variables regarding the timing of patient care showed no significant differences between groups which demonstrates that quality patient care was maintained. It is important to note that this data was collected early in the Pandemic, and additional trends may become apparent over time.

Level of evidence

4.

ICU tracheotomies in patients with COVID-19: a lesson learned for future viral pandemic

INTRODUCTION

The coronavirus SARS-CoV-2 pandemic has resulted in a large number of patients requiring intubation and prolonged mechanical ventilation. The current knowledge on the tracheotomies regarding the time form intubation, method and ventilatory parameters optimal for their performance in the mechanically ventilated patients with COVID ARDS are scarce; thus, the aim of this study is to present new data regarding their safety, adverse events and timing.

MATERIALS AND METHODS

This retrospective observational study is based on the data of 66 critically ill COVID patients including demographic data, timing and technique of tracheotomy, ventilatory parameters in the time of procedure, as well as complication and survival rate.

RESULTS

A number of 66 patients with COVID-related pneumonia were included in the study, among whom 32 were tracheotomized-25 patients underwent an early tracheotomy and 7 patients had late tracheotomy. The median duration of mechanical ventilation before the tracheotomy in the early group was 8 days (IQR 6-10) compared to 11 days (IQR 11-12.5.) p < 0.001) in late group. Risk of death in tracheotomy patients was significantly growing with growing level of PEEP and FiO2 at the moment of decision on tracheotomy, OR = 1.91 CI₉₅ (1.23;3.57); p = 0.014 and OR = 1.18 CI₉₅(1.03;1.43); p = 0.048, respectively.

CONCLUSION

Early percutaneous tracheotomy is safe (both in terms of risk of viral transmission and complication rate) and feasible in COVID-19 patients. Stability of gas exchange, and ventilatory parameters are the main prognostic factors of the outcome.

Tracheostomy in Mechanically Ventilated Patients With SARS-CoV-2-ARDS: Focus on Tracheomalacia

BACKGROUND

The SARS-CoV-2 pandemic increased the number of patients needing invasive mechanical ventilation, either through an endotracheal tube or through a tracheostomy. Tracheomalacia is a rare but potentially severe complication of mechanical ventilation, which can significantly complicate the weaning process. The aim of this study was to describe the strategies of airway management in mechanically ventilated patients with respiratory failure due to SARS-CoV-2, the incidence of severe tracheomalacia, and investigate the factors associated with its occurrence.

METHODS

This retrospective, single-center study was performed in an Italian teaching hospital. All adult subjects admitted to the ICU between February 24, 2020, and June 30, 2020, treated with invasive mechanical ventilation for respiratory failure caused by SARS-CoV-2 were included. Clinical data were collected on the day of ICU admission, whereas information regarding airway management was collected daily.

RESULTS

A total of 151 subjects were included in the study. On admission, ARDS severity was mild in 21%, moderate in 62%, and severe in 17% of the cases, with an overall mortality of 40%. A tracheostomy was performed in 73 (48%), open surgical technique in 54 (74%), and percutaneous Ciaglia technique in 19 (26%). Subjects who had a tracheostomy performed had, compared to the other subjects, a longer duration of mechanical ventilation and longer ICU and hospital stay. Tracheomalacia was diagnosed in 8 (5%). The factors associated with tracheomalacia were female sex, obesity, and tracheostomy.

CONCLUSIONS

In our population, approximately 50% of subjects with ARDS due to SARS-CoV-2 were tracheostomized. Tracheostomized subjects had a longer ICU and hospital stay. In our population, 5% were diagnosed with tracheomalacia. This percentage is 10 times higher than what is reported in available literature, and the underlying mechanisms are not fully understood.

Dysphagia Severity and Management in Patients with COVID-19

COVID-19 has resulted in unprecedented numbers of patients treated at intensive care units (ICUs). Dysphagia is a key concern in critical illness survivors. We investigated the severity of dysphagia in COVID-19 and the need to adapt practices to provide efficient care. We reviewed the literature on COVID-19, post-critical-illness dysphagia, and dysphagia and tracheostomy guidelines during the pandemic. Critically ill COVID-19 patients present a high incidence of dysphagia, aggravated by respiratory distress, deconditioning, and neurological complications. Mechanical ventilation (MV), delirium, sedation and weakness are worse in COVID-19 than in other etiologies of critical care. In awake patients, respiratory compromise impairs breathing-swallowing-coughing coordination. Tracheostomy reduces laryngopharyngeal trauma, sedation, delirium, ICU stay and improves swallowing rehabilitation. Tracheostomy weaning and swallowing evaluation is complex in COVID-19 due to respiratory instability and a team discussion will guide adaptations. Patients assessed in the ICU were 67% recommended to be nil by mouth (were aspirating). Two months following hospital discharge, 83% of those who had undergone tracheostomy were managing a normal diet. Severely ill COVID-19 patients are expected to regain swallow function. Dysphagia care is based on adaptation of practices to the patients' multiple impairments.

Timing of tracheostomy in mechanically ventilated COVID-19 patients

According to the World Health Organization as of September 16, 2021, there have been over 226 million documented cases of coronavirus disease 2019 (COVID-19), which has resulted in more than 4.6 million deaths and approximately 14% develop a more severe disease that requires respiratory assistance such as intubation. Early tracheostomy is recommended for patients that are expected to be on prolonged mechanical ventilation; however, supporting data has not yet been provided for early tracheostomies in COVID-19 patients. The aim of this study was to explore established guidelines for performing tracheostomies in patients diagnosed with COVID-19. Factors considered were patient outcomes such as mortality, ventilator-associated pneumonia, intensive care unit length of stay, complications associated with procedures, and risks to healthcare providers that performed tracheostomies. Various observational studies, meta-analyses, and systematic reviews were collected through a PubMed Database search. Additional sources were found through Google. The search was refined to publications in English and between the years of 2003 and 2021. The keywords used were “Coronavirus” and/or “guidelines'' and/or “tracheostomy” and/or “intensive care”. Twenty-three studies were retained. Due to the complex presentation of the respiratory virus COVID-19, previously established guidelines for tracheostomies had to be reevaluated to determine if these guidelines were still applicable to these critically ill ventilated patients. More specifically, medical guidelines state benefits to early tracheostomies in critically ill ventilated non-COVID-19 patients. However, after having conducted this review, the assumptions about the benefits of early tracheostomies in critically ill ventilated patients may not be appropriate for COVID-19 patients.

Systematic review and meta-analysis of tracheostomy outcomes in COVID-19 patients

A systematic review and meta-analysis of the entire COVID-19 Tracheostomy cohort was conducted to determine the cumulative incidence of complications, mortality, time to decannulation and ventilatory weaning. Outcomes of surgical versus percutaneous and outcomes relative to tracheostomy timing were also analysed. Studies reporting outcome data on patients with COVID-19 undergoing tracheostomy were identified and screened by 2 independent reviewers. Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were followed. Outcome data were analysed using a random-effects model. From 1016 unique studies, 39 articles reporting outcomes for a total of 3929 patients were included for meta-analysis. Weighted mean follow-up time was 42.03±26 days post-tracheostomy. Meta-analysis showed that 61.2% of patients were weaned from mechanical ventilation [95%CI 52.6%-69.5%], 44.2% of patients were decannulated [95%CI 33.96%-54.67%], and cumulative mortality was found to be 19.23% [95%CI 15.2%-23.6%] across the entire tracheostomy cohort. The cumulative incidence of complications was 14.24% [95%CI 9.6%-19.6%], with bleeding accounting for 52% of all complications. No difference was found in incidence of mortality (RR1.96; p=0.34), decannulation (RR1.35, p=0.27), complications (RR0.75, p=0.09) and time to decannulation (SMD 0.46, p=0.68) between percutaneous and surgical tracheostomy. Moreover, no difference was found in mortality (RR1.57, p=0.43) between early and late tracheostomy, and timing of tracheostomy did not predict time to decannulation. Ten confirmed nosocomial staff infections were reported from 1398 tracheostomies. This study provides an overview of outcomes of tracheostomy in COVID-19 patients, and contributes to our understanding of tracheostomy decisions in this patient cohort.

Revised recommendations from the CSO-HNS taskforce on performance of tracheotomy during the COVID-19 pandemic - what a difference a year makes

Background

During the early part of the COVID-19 pandemic, the Canadian Society of Otolaryngology - Head & Neck Surgery (CSO-HNS) task force published recommendations on performance of tracheotomy. Since then, our understanding of the virus has evolved with ongoing intensive research efforts. New literature has helped us better understand various aspects including patient outcomes and health care worker (HCW) risks associated with tracheotomy during the COVID-19 pandemic. Accordingly, the task force has re-evaluated and revised some of the previous recommendations.

Main body

Based on recent evidence, a negative reverse transcription polymerase chain reaction (RT-PCR) COVID-19 swab status is no longer the main deciding factor in the timing of tracheotomy. Instead, tracheotomy may be considered as soon as COVID-19 swab positive patients are greater than 20 days beyond initial symptoms and 2 weeks of mechanical ventilation. Furthermore, both open and percutaneous surgical techniques may be considered with both techniques showing similar safety and outcome profiles. Additional recommendations with discussion of current evidence are presented.

Conclusion

These revised recommendations apply new evidence in optimizing patient and health care system outcomes as well as minimizing risks of COVID-19 transmission during aerosol-generating tracheotomy procedures. As previously noted, additional evidence may lead to further evolution of these and other similar recommendations.

Graphical abstract

Ten things you need to know about intensive care unit management of mechanically ventilated patients with COVID-19

Introduction: The ongoing pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has posed important challenges for clinicians and health-care systems worldwide.Areas covered: The aim of this manuscript is to provide brief guidance for intensive care unit management of mechanically ventilated patients with COVID-19 based on the literature and our direct experience with this population. PubMed, EBSCO, and the Cochrane Library were searched up until 15th of January 2021 for relevant literature.Expert opinion: Initially, the respiratory management of COVID-19 relied on the general therapeutic principles for acute respiratory distress syndrome; however, recent findings have suggested that the pathophysiology of hypoxemia in patients with COVID-19 presents specific features and changes over time. Several therapies, including antiviral and anti-inflammatory agents, have been proposed recently. The optimal intensive care unit management of patients with COVID-19 remains unclear; therefore, ongoing and future clinical trials are warranted to clarify the optimal strategies to adopt in this cohort of patients.

Outcomes and Timing of Bedside Percutaneous Tracheostomy of COVID-19 Patients over a Year in the Intensive Care Unit

Background: The benefits and timing of percutaneous dilatational tracheostomy (PDT) in Intensive Care Unit (ICU) COVID-19 patients are still controversial. PDT is considered a high-risk procedure for the transmission of SARS-CoV-2 to healthcare workers (HCWs). The present study analyzed the optimal timing of PDT, the clinical outcomes of patients undergoing PDT, and the safety of HCWs performing PDT. Methods: Of the 133 COVID-19 patients who underwent PDT in our ICU from 1 April 2020 to 31 March 2021, 13 patients were excluded, and 120 patients were enrolled. A trained medical team was dedicated to the PDT procedure. Demographic, clinical history, and outcome data were collected. Patients who underwent PDT were stratified into two groups: an early group (PDT ≤ 12 days after orotracheal intubation (OTI) and a late group (>12 days after OTI). An HCW surveillance program was also performed. Results: The early group included 61 patients and the late group included 59 patients. The early group patients had a shorter ICU length of stay and fewer days of mechanical ventilation than the late group (p < 0.001). On day 7 after tracheostomy, early group patients required fewer intravenous anesthetic drugs and experienced an improvement of the ventilation parameters PaO₂/FiO₂ ratio, PEEP, and FiO₂ (p < 0.001). No difference in the case fatality ratio between the two groups was observed. No SARS-CoV-2 infections were reported in the HCWs performing the PDTs. Conclusions: PDT was safe and effective for COVID-19 patients since it improved respiratory support parameters, reduced ICU length of stay and duration of mechanical ventilation, and optimized the weaning process. The procedure was safe for all HCWs involved in the dedicated medical team. The development of standardized early PDT protocols should be implemented, and PDT could be considered a first-line approach in ICU COVID-19 patients requiring prolonged mechanical ventilation.

The Efficacy of Tracheotomy for Covid-19 Pneumonia: Impacts on Survival and Prognostic Factors

The role of tracheotomy during the pandemic remains to be determined for severe COVID-19 pneumonia. We evaluated the effect of tracheotomy on prognostic markers and assessed 4 weeks survival in terms of clinical and biochemical characteristics of patients and time and type (open or percutaneous) of the operation. We performed a retrospective study considering ICU patients with COVID-19 pneumonia and tracheotomy, between May 30 and December 31, 2020. Four weeks survival postoperatively and alteration of biochemical markers were analyzed. 24 patients with COVID-19 pneumonia and tracheotomy, included in this study. Median age was 68.3 years (range 38-90) with male:female ratio 16:8. All the patients were diagnosed with COVID-19 pneumonia considering clinical symptoms and COVID-19 specific CT findings. RT-PCR test results were positive in 58.3%. Prognostic markers were found to be increased postoperatively with both types of surgery (75%). 1 week and 4 weeks survival after the operation was 66.7% and 45.8%, respectively. 4 weeks survival was decreased significantly with NLR ≥ 10 compared to NLR < 10 (15.3-81.8%). Nevertheless, 4 weeks survival differences between males and females (12.5% and 62.5%) and between age ≤ 50 and > 50 (100% and 35%) were also found to be statistically significant. Patients with younger age, male gender, and NLR < 10, were found to have longer survival after tracheotomy. Positive PCR results and preoperative critically increased biochemical markers were related to decreased survival. The number of comorbidities, time and type of surgery, and postoperative increment of prognostic markers seemed not to affect survival.

Association of Tracheostomy With Outcomes in Patients With COVID-19 and SARS-CoV-2 Transmission Among Health Care Professionals: A Systematic Review and Meta-analysis

Importance

Approximately 5% to 15% of patients with COVID-19 require invasive mechanical ventilation (IMV) and, at times, tracheostomy. Details regarding the safety and use of tracheostomy in treating COVID-19 continue to evolve.

Objective

To evaluate the association of tracheostomy with COVID-19 patient outcomes and the risk of SARS-CoV-2 transmission among health care professionals (HCPs).

Data Sources

EMBASE (Ovid), Medline (Ovid), and Web of Science from January 1, 2020, to March 4, 2021.

Study Selection

English-language studies investigating patients with COVID-19 who were receiving IMV and undergoing tracheostomy. Observational and randomized clinical trials were eligible (no randomized clinical trials were found in the search). All screening was performed by 2 reviewers (P.S. and M.L.). Overall, 156 studies underwent full-text review.

Data Extraction and Synthesis

We performed data extraction in accordance with Meta-analysis of Observational Studies in Epidemiology guidelines. We used a random-effects model, and ROBINS-I was used for the risk-of-bias analysis.

Main Outcomes and Measures

SARS-CoV-2 transmission between HCPs and levels of personal protective equipment, in addition to complications, time to decannulation, ventilation weaning, and intensive care unit (ICU) discharge in patients with COVID-19 who underwent tracheostomy.

Results

Of the 156 studies that underwent full-text review, only 69 were included in the qualitative synthesis, and 14 of these 69 studies (20.3%) were included in the meta-analysis. A total of 4669 patients were included in the 69 studies, and the mean (range) patient age across studies was 60.7 (49.1-68.8) years (43 studies [62.3%] with 1856 patients). We found that in all studies, 1854 patients (73.8%) were men and 658 (26.2%) were women. We found that 28 studies (40.6%) investigated either surgical tracheostomy or percutaneous dilatational tracheostomy. Overall, 3 of 58 studies (5.17%) identified a small subset of HCPs who developed COVID-19 that was associated with tracheostomy. Studies did not consistently report the number of HCPs involved in tracheostomy. Among the patients, early tracheostomy was associated with faster ICU discharge (mean difference, 6.17 days; 95% CI, -11.30 to -1.30), but no change in IMV weaning (mean difference, -2.99 days; 95% CI, -8.32 to 2.33) or decannulation (mean difference, -3.12 days; 95% CI, -7.35 to 1.12). There was no association between mortality or perioperative complications and type of tracheostomy. A risk-of-bias evaluation that used ROBINS-I demonstrated notable bias in the confounder and patient selection domains because of a lack of randomization and cohort matching. There was notable heterogeneity in study reporting.

Conclusions and Relevance

The findings of this systematic review and meta-analysis indicate that enhanced personal protective equipment is associated with low rates of SARS-CoV-2 transmission during tracheostomy. Early tracheostomy in patients with COVID-19 may reduce ICU stay, but this finding is limited by the observational nature of the included studies.

Interventional pulmonology during COVID-19 pandemic: current evidence and future perspectives

COVID-19, caused by SARS-CoV-2 infection, has become increasingly prevalent worldwide, reaching a pandemic stage in March 2020. The organization of health care services had to change because of this new disease, with the need to reallocate staff and materials, besides changing management protocols. A very important challenge is not to expose patients and health care workers to the risk of infection and not to waste personal protective equipment (PPE). In the field of interventional pulmonology, various aspects related to COVID-19 must be taken into great consideration. Although bronchoscopy is not a first-line test for patients with suspected SARS-CoV-2 infection, it has a role in selected cases and it can be useful for differential diagnosis. However, bronchoscopy is an aerosol-generating procedure, that’s why its unjustified use could contribute to propagate the virus. For this reason, the utility of each procedure must be carefully evaluated, the patient has to be properly investigated before the procedure, which has to be performed with specific precautions, including adequate PPE. In this review, we summarize the knowledge and the principal statements about endoscopic activity in COVID-19 period, in both diagnosis of COVID-19 and management of patients. How to safely perform both bronchoscopic and pleural-related procedures (thoracoscopy, pleural biopsy and drainage of pleural effusions) is described with the aim to help the staff to decide when and how performing a procedure. We also highlight how interventional pulmonology could help in matter of complications related to COVID-19.