Death after percutaneous dilatational tracheostomy: a systematic review and analysis of risk factors

Tracheal Cartilage Fracture: A Rare Cause of Weaning Failure

A 42-year-old female developed a rare complication of tracheal ring fracture following repeated percutaneous dilatational tracheostomy, which was performed after intubation due to progressive respiratory failure in the case of treated organophosphate poisoning. The patient first presented with organophosphate poisoning and was intubated in view of altered sensorium and tracheostomized after a prolonged stay in the intensive care unit. The patient was successfully weaned off and the tracheostomy tube was removed; the patient had progressive breathlessness over the duration of five months and presented with stridor, requiring emergency intubation and repeat tracheostomy due to respiratory failure. Imaging studies showed bilateral pleural effusion, right middle lobe consolidation, and scattered ground glass opacities. The patient received intravenous antibiotics and fluid therapy but faced challenges with weaning despite meeting the criteria. Bronchoscopy revealed a broken tracheal cartilage obstructing the tube, which was removed, leading to improved respiratory status and successful weaning off the ventilator. The patient underwent tracheal wall repair, was decannulated, and discharged successfully following extubation.

Evaluation of the Effect of Morphological Structure on Dilatational Tracheostomy Interference Location and Complications with Ultrasonography and Fiberoptic Bronchoscopy

Background: Percutaneous dilatational tracheostomy (PDT) is the most commonly performed minimally invasive intensive care unit procedure worldwide. Methods: This study evaluated the percentage of consistency between the entry site observed with fiberoptic bronchoscopy (FOB) and the prediction for the PDT level based on pre-procedural ultrasonography (USG) in PDT procedures performed using the forceps dilatation method. The effect of morphological features on intervention sites was also investigated. Complications that occurred during and after the procedure, as well as the duration, site, and quantity of the procedures, were recorded. Results: Data obtained from a total of 91 patients were analyzed. In 57 patients (62.6%), the USG-estimated tracheal puncture level was consistent with the intercartilaginous space observed by FOB, while in 34 patients (37.4%), there was a discrepancy between these two methods. According to Bland Altman, the agreement between the tracheal spaces determined by USG and FOB was close. Regression formulas for PDT procedures defining the intercartilaginous puncture level based on morphologic measurements of the patients were created. The most common complication related to PDT was cartilage fracture (17.6%), which was proven to be predicted with maximum relevance by punctured tracheal level, neck extension limitation, and procedure duration. Conclusions: In PDT procedures using the forceps dilatation method, the prediction of the PDT intervention level based on pre-procedural USG was considerably in accordance with the entry site observed by FOB. The intercartilaginous puncture level could be estimated based on morphological measurements.

Utility of Bedside Ultrasound in Percutaneous Tracheostomy

Background: Percutaneous tracheostomy placement is a common procedure performed in the intensive care unit. The use of an anterior neck ultrasound exam is routinely performed preprocedure, allowing for vessel visualization in determining the safety and feasibility of performing the procedure bedside. This prospective observational cohort study was conducted to determine whether vasculature in the anterior neck, seen on bedside ultrasound exam, contributes to bleeding complications during or after percutaneous tracheostomy (PCT) placement. Research Question: Do the vessels identified on preprocedure neck ultrasound affect the risk of bleeding during and after bedside PCT placement? Study Design and Methods: Preprocedural ultrasound was used to identify standard anatomical landmarks and vascular structures in the anterior neck in all patients undergoing bedside PCT placement under bronchoscopic guidance. A blinded survey of our recorded preprocedural images was provided to an expert panel who regularly perform bedside PCTs to determine the influence the images have on their decision to perform the procedure at the bedside. Results: One out of 15 patients (7%) had intra-operative minimal bleeding which was not clinically significant and resolved by gauze compression for 30 s. None of the patients had post-procedural bleeding after tracheostomy placement. Based on the blinded interpretation of neck ultrasound, there was 0.214 inter-operator variability among the expert panelists for decision-making regarding performing bedside PCT. Interpretation: Vessels visualized with anterior neck ultrasound were found to be small venous structures and did not significantly contribute to bleeding risk in patients who underwent PCT placement. The size and location of veins on neck ultrasound may commonly contribute to abandoning bedside PCT. This study suggests that veins measuring 3.9 mm or smaller identified at the site of access do not increase the risk of bleeding in PCT placement.

Tracheostomy in otorhinolaryngology education and training programs: A Japanese nationwide survey

OBJECTIVE

Surgical airway management is one of the most effective techniques for safe airway management. Within the training programs relating to knowledge and skills required by otorhinolaryngologists, tracheostomy and postoperative management are important items that must be fully understood by airway surgeons. We performed a nationwide survey to identify problems within tracheostomy and postoperative management in Japan in order to establish practical and safe guidelines for surgical airway management.

METHODS

We conducted a questionnaire survey of the current status of tracheostomy and postoperative management at core institution of otorhinolaryngology training programs in Japan.

RESULTS

Responses were obtained from all 101 core training institutions in Japan. Tracheostomy was performed in the operating room at 61.4% of institutions and in the ICU at 26.7%. 89.1% of them performed surgical tracheostomy (ST) in all cases. Even in the remaining 10.9%, percutaneous dilatational tracheostomy (PDT) was performed in less than 10% of cases. The primary surgeon was an otorhinolaryngology resident at 89.1% of institutions. The method of securing the tube immediately after surgery was by securing it with an attached cord at 48.5% of institutions, by suturing to the skin at 25.7%, and using a Velcro band at 24.8%. The first tube change after tracheostomy was performed on the seventh postoperative day at 81.2% of institutions. 87.1% had more than one person performing the first tube change. The tracheostomy postoperative complications within the past year were as follows: tracheostomal granulation: 89.1%; subcutaneous and/or mediastinal emphysema: 62.4%; tube stenosis: 55.4%; accidental tube removal: 50.5%; incorrect tube insertion or misplacement: 15.8%; hemorrhage from tracheal foramen requiring hemostasis in the operating room: 14.9%; pneumothorax: 4.0%; tracheo-innominate arterial fistula: 2.0%; and tracheoesophageal fistula: 1.0%. The method for educating otorhinolaryngology residents about tracheostomy was on-the-job training at 98.0% of institutions.

CONCLUSIONS

For airway management in otorhinolaryngology training programs, after learning the basics of ST, PDT should also be well understood. Furthermore, in order to create safe educational programs for intraoperative and postoperative management, it is necessary to train otorhinolaryngologists with accurate knowledge and skills, and to strengthen collaboration with multiple professions in their leadership roles as airway surgeons.

Cardiac arrest due to an unexpected inability to ventilate in a tracheostomy patient suggesting the need for a routine anesthesia checklist and an anesthesia relevant emergency pathway for tracheostomy management: a case report

Background

Up to 30% of patients worldwide have a significant complication related to their tracheostomy. We report a case of a 'cannot ventilate' event resulting in cardiac arrest due to an unexpected airway occlusion in a patient with a pre-existing brain injury The following case report is unique as the patient had developed a mucus plug that turned into a crystal following a coronavirus disease 19 (COVID-19) infection.

Case Description

The patient was a young adult who suffered a traumatic brain injury from a motor vehicle collision. He presented for elective cystoscopy to treat recurrent urinary tract infections. During induction of anesthesia, the patient became agitated, desaturated, and ventilation became impossible. With chest compressions underway the tracheostomy was removed, and the patient was quickly and successfully orally intubated using a video-laryngoscope. Subsequent inspection of the tracheostomy tube revealed a mucus plug in the distal portion which had hardened into a rock-like appearance. The inner cannula was also missing. Follow-up revealed that the patient recently had a COVID-19 infection and because of this received less frequent suctioning of his tracheostomy tube.

Conclusions

Reviewing the literature, we recognized that there has been no case report documenting a mucus plug that turned into a stone. Reviewing guidelines for handling tracheostomy emergencies, we recognize that there are no anesthesia specific guidelines in the USA. We also recognize that there are no established checklists for patients with tracheostomy undergoing surgery. We therefore recommend establishing a routine checklist and anesthesia specific guideline for emergencies that follows every patient with a tracheostomy undergoing surgery.

Microendoscopic Ultrasound-Guided Percutaneous Tracheostomy (MUGPT): A Case Series Describing a Novel Technique for Performing Percutaneous Tracheostomy

A percutaneous tracheostomy is a common surgical procedure done in intensive care. Several different techniques have been described. Recently, the addition of bronchoscopy or ultrasound has been advocated to decrease the risks and complications associated with the procedure; however, both aids used alone, bronchoscopy or ultrasound, have some drawbacks and pitfalls. In this manuscript, we describe a new technique implementing a new technology, Microendoscopy coupled with ultrasound to perform percutaneous dilation tracheostomy MUGPT. MUGPT relies on dual real-time feedback microendoscopy and ultrasound to perform percutaneous dilation tracheostomy. This technique helps reduce the risk of bleeding, airway loss, tracheal wall injury, tracheal ring fracture, damage to adjacent structures, pneumothorax, pneumomediastinum, subcutaneous emphysema, false placement, hypoxia, carbon dioxide retention bronchospasm, cardiac dysrhythmias, and cost reduction. Methods. This is a case series of 6 patients who underwent single-step percutaneous dilation tracheostomy using the MUGPT technique. All the patients were in ICU and were candidates for tracheostomy. Intraoperative data collection, vital signs, oxygen saturation, and end-tidal CO2 were measured. No postoperative or intraoperative complications were documented. Conclusion. Microendoscopic ultrasound-guided percutaneous tracheostomy (MUGPT) is a promising technique with minimal complications. It is a procedure that can be performed and taught easily to Junior physicians and is a lifesaver in difficult cases.

Impact of early percutaneous dilatative tracheostomy in patients with subarachnoid hemorrhage on main cerebral, hemodynamic, and respiratory variables: A prospective observational study

Introduction

Patients with poor-grade subarachnoid hemorrhage (SAH) admitted to the intensive care unit (ICU) often require prolonged invasive mechanical ventilation due to prolonged time to obtain neurological recovery. Impairment of consciousness and airway protective mechanisms usually require tracheostomy during the ICU stay to facilitate weaning from sedation, promote neurological assessment, and reduce mechanical ventilation (MV) duration and associated complications. Percutaneous dilatational tracheostomy (PDT) is the technique of choice for performing a tracheostomy. However, it could be associated with particular risks in neurocritical care patients, potentially increasing the risk of secondary brain damage.

Methods

We conducted a single-center, prospective, observational study aimed to assess PDT-associated variations in main cerebral, hemodynamic, and respiratory variables, the occurrence of tracheostomy-related complications, and their relationship with outcomes in adult patients with SAH admitted to the ICU of a neurosurgery/neurocritical care hub center after aneurysm control through clipping or coiling and undergoing early PDT.

Results

We observed a temporary increase in ICP during early PDT; this increase was statistically significant in patients presenting with higher therapy intensity level (TIL) at the time of the procedural. The episodes of intracranial hypertension were brief, and appeared mainly due to the activation of cerebral autoregulatory mechanisms in patients with impaired compensatory mechanisms and compliance.

Discussion

The low number of observed complications might be related to our organizational strategy, all based on a dedicated "tracheo-team" implementing both PDT following a strictly defined protocol and accurate follow-up.

Open Bedside Tracheostomy: Safe and Cost Saving but Underutilized Nationally

OBJECTIVE

To evaluate open bedside tracheostomy (OBT) and compare it with open operating room (OR) tracheostomy and bedside percutaneous dilatational tracheostomy (PDT) in complications and cost. To determine the tracheostomy practice patterns of academic otolaryngology programs.

STUDY DESIGN

Retrospective cohort study and cross-sectional study.

SETTING

Public hospital and tertiary care hospital.

METHODS

Otolaryngology program directors were surveyed to determine their institutions' tracheostomy practice patterns and the factors preventing the implementation of open bedside tracheostomies. A retrospective chart review was done of tracheostomies performed at our institutions from 2009 to 2019 for prolonged mechanical ventilation. Complications, length of intubation, comorbidities, body mass index, demographics, mortality rates, and decannulation rates were recorded. A cost analysis between OBT and PDT was conducted.

RESULTS

Data from 802 patients were analyzed for 449 OBTs, 206 PDTs, and 147 open OR tracheostomies. Complication rates were low. PDTs were more likely to have perioperative tracheal bleeding (P = .028) and mucus plugging (P = .006). OBTs were performed on sicker patients with a higher Charlson Comorbidity Index than PDT and OR tracheostomies. The cost of OBT was less than that of PDT. The survey response rate of tracheostomy practice patterns was 46%. The otolaryngologists at the responding programs all conducted OR tracheostomies, while 52.7% did OBTs and 30.9% PDTs.

CONCLUSION

OBT can be done safely in patients with multiple comorbidities and has a cost that can be less than PDT. Despite these benefits, only 50% of academic institutions routinely performed OBT.

LEVEL OF EVIDENCE: 3

Creation of an Open Bedside Tracheostomy Program at a Community Hospital With a Single Surgeon

Objective

To assess the adverse event rate and operating cost of open bedside tracheostomy (OBT) at a community hospital. To present a model for creating an OBT program at a community hospital with a single surgeon.

Study Design

Retrospective case series pilot study.

Setting

Academic-affiliated community hospital.

Methods

Retrospective chart review of surgical OBT and operating room tracheostomy (ORT) at a community hospital from 2016 to 2021. Primary outcomes included operation duration; perioperative, postoperative, and long-term complications; and crude time-based estimation of operating cost to the hospital using annual operating cost. Clinical outcomes of OBT were assessed with ORT as a comparison using t tests and Fisher's exact tests.

Results

Fifty-five OBT and 14 ORT were identified. Intensive care unit (ICU) staff training in preparing for and assisting with OBT was successfully implemented by an Otolaryngologist and ICU nursing management. Operation duration was 20.3 minutes for OBT and 25.2 minutes for ORT (p = .14). Two percent, 18%, and 10% of OBT had perioperative, postoperative, and long-term complications, respectively; this was comparable to rates for ORT (p = .10). The hospital saved a crude estimate of $1902 in operating costs per tracheostomy when performed in the ICU.

Conclusion

An OBT protocol can be successfully implemented at a single-surgeon community hospital. We present a model for creating an OBT program at a community hospital with limited staff and resources.

Percutaneous tracheostomy in the ICU: a review of the literature and recent updates

PURPOSE OF REVIEW

The following article summarizes the current available knowledge regarding tracheostomy techniques, indications, contraindications, procedure timing, use of assisted technologies and tracheostomy feasibility and safety in high-risk populations. In light of the ongoing corona virus disease (COVID-19) pandemic, a focus was placed on tracheostomy in this unique patient group.

RECENT FINDINGS

Percutaneous dilatation tracheostomy (PDT) is commonly used in the ICU setting. It has been shown to be well tolerated and feasible in a diverse patient population including those regarded to be at high risk such as the obese, coagulopathic and acute respiratory failure patient. This patient profile presented itself frequently in the recent COVID-19 pandemic. Indeed studies showed that PDT is well tolerated in COVID-19 ICU patients leading to reduced ICU length of stay (LOS), decrease in ventilator-associated pneumonia rate (VAP) and reduced duration on invasive mechanical ventilation (IMV). Despite initial concerns, virus transmission from patient to healthcare provider (HCP) was shown to be negligible when proper precautions are taken.

SUMMARY

Bedside PDT in the ICU is a well tolerated procedure having the potential to benefit both the individual patient as well as to improve resource utilization of the healthcare system.

Safety of Prophylactic Anticoagulation During Bedside Procedures: A Prospective Multicenter Observational Study

BACKGROUND

Bedside percutaneous dilatational tracheostomy (PDT) and percutaneous endoscopic gastrostomy (PEG) are common procedures performed in the intensive care unit (ICU). Venous thromboembolism (VTE) prophylaxis is frequently prescribed to ICU patients and it remains unclear whether pre-procedure discontinuation is necessary.

METHODS

This multi-center prospective observational study aimed to describe bleeding rates in patients undergoing bedside PEG or PDT who did or did not have VTE prophylaxis held. Decision to hold prophylaxis was made by the operating physician. The primary endpoint was the rate of peri-procedural bleeding complications. Secondary endpoints included quantification of held doses in the peri-procedural period, rate of venous thromboembolism, and characteristics associated with having prophylaxis held.

RESULTS

91 patients were included over a 2-year period. Patients were on average aged 54 years, 40% female, mostly admitted to the trauma service (59%), and most commonly underwent bedside PDT (59%). Overall, 21% of patients had doses of pre-procedure prophylaxis held. Bleeding events occurred in 1 patient (1.4%) who had prophylaxis continued and in 1 patient (5.0%) who had prophylaxis held, a rate difference of 3.6% (95% CI-9.5%, 16.7%). One bleeding event was managed with bedside surgical repair and one with blood transfusion. There were 10 VTE events, all of whom had prophylaxis continued during the pre-procedure period but 3 had prophylaxis held after the procedure.

CONCLUSIONS

Bleeding complications were rare and did not significantly differ depending on whether prophylaxis was held or not. Future research is required to confirm the lack of risk with continuing prophylaxis through bedside procedures.

Improving Extracorporeal Membrane Oxygenation Survival in COVID-19. Effect of a Bundle of Care

Veno-venous extracorporeal membrane oxygenation (ECMO) support surged during the COVID-19 pandemic. Our program changed the model of care pursuing to protect the multidisciplinary team from the risk of infection and to serve as many patients as possible. Patient-healthcare interactions were restricted, and the ECMO bed capacity was increased by reducing the ECMO specialist-patient ratio to 1:4 with non-ECMO trained nurses support. The outcomes worsened and we paused while we evaluated and modified our model of care. The ECMO bed capacity was reduced to allow a nurse ECMO-specialist nurse ratio 2:1 with an ECMO trained nurse assistant's support. Intensivists, general practitioners, nurse assistants, and physical and respiratory therapists were trained on ECMO. Tracheostomy, bronchoscopy, and microbiological molecular diagnosis were done earlier, and family visits and rehabilitation were allowed in the first 48 hours of ECMO cannulation. There were 35 patients in the preintervention cohort and 66 in the postintervention cohort. Ninety days mortality was significantly lower after the intervention (62.9% vs. 31.8%, p = 0.003). Factors associated with increased risk of death were the need for cannulation or conversion to veno arterial or veno arterio venous ECMO, hemorrhagic stroke, and renal replacement therapy during ECMO. The interventions associated with a decrease in the risk of death were the following: early fiberoptic bronchoscopy and microbiological molecular diagnostic tests. Increasing the ECMO multidisciplinary team in relation to the number of patients and the earlier performance of diagnostic and therapeutic interventions, such as tracheostomy, fiberoptic bronchoscopy, molecular microbiological diagnosis of pneumonia, rehabilitation, and family support significantly decreased mortality of patients on ECMO due to COVID-19.

Mortality Risk Factors in Patients Admitted with the Primary Diagnosis of Tracheostomy Complications: An Analysis of 8026 Patients

Background: Tracheostomy is a procedure commonly conducted in patients undergoing emergency admission and requires prolonged mechanical ventilation. In the present study, the aim was to determine the prevalence and risk factors of mortality among emergently admitted patients with tracheostomy complications, during the years 2005−2014. Methods: This was a retrospective cohort study. Demographics and clinical data were obtained from the National Inpatient Sample, 2005−2014, to evaluate elderly (65+ years) and non-elderly adult patients (18−64 years) with tracheostomy complications (ICD-9 code, 519) who underwent emergency admission. A multivariable logistic regression model with backward elimination was used to identify the association between predictors and in-hospital mortality. Results: A total of 4711 non-elderly and 3315 elderly patients were included. Females included 44.5% of the non-elderly patients and 47.6% of the elderly patients. In total, 181 (3.8%) non-elderly patients died, of which 48.1% were female, and 163 (4.9%) elderly patients died, of which 48.5% were female. The mean (SD) age of the non-elderly patients was 50 years and for elderly patients was 74 years. The mean age at the time of death of non-elderly patients was 53 years and for elderly patients was 75 years. The odds ratio (95% confidence interval, p-value) of some of the pertinent risk factors for mortality showed by the final regression model were older age (OR = 1.007, 95% CI: 1.001−1.013, p < 0.02), longer hospital length of stay (OR = 1.008, 95% CI: 1.001−1.016, p < 0.18), cardiac disease (OR = 3.21, 95% CI: 2.48−4.15, p < 0.001), and liver disease (OR = 2.61, 95% CI: 1.73−3.93, p < 0.001). Conclusion: Age, hospital length of stay, and several comorbidities have been shown to be significant risk factors in in-hospital mortality in patients admitted emergently with the primary diagnosis of tracheostomy complications. Each year of age increased the risk of mortality by 0.7% and each additional day in the hospital increased it by 0.8%.

Comparison of percutaneous tracheostomy methods in ICU patients: Conventional anatomical landmark method versus ultrasonography method - A randomised controlled trial

Background and Aims

Percutaneous dilational tracheostomy (PDT) is a common procedure in intensive care unit (ICU) patients requiring long-term mechanical ventilation. PDT has gradually replaced surgical tracheostomy because it is associated with minimal invasiveness, reduced bleeding and simplicity in technique.This study was conducted to compare ultrasound-guided PDT versus conventional tracheostomy in terms of duration of the procedure, number of passes and immediate peri-procedural complications.

Methods

A total of 72 patients with clinical indications of tracheostomy were recruited. A total of 12 patients met the exclusion criteria. The remaining were randomly assigned into two groups of 30 each: Group A (Landmark) with traditional anatomical landmark and Group B (USG) with real-time ultrasound guidance. Puncture positions were recorded with bronchoscopy. Midline deviation was captured on a bronchoscopy image using a protractor. Data on procedural safety and efficacy were also collected.

Results

Group B had significantly fewer cases of midline deviation (11.33 ± 9.51) in comparison to Group A (16.60 ± 12.31). Trials > 2 were equal to 11 in Group A and 2 in Group B. However, the duration of the procedure was higher in Group B (20.07 ± 3.25 min) as compared to Group A (15.20 ± 3.71 min). Peri-procedural and post-procedural complications were also higher in the Landmark group.

Conclusion

Ultrasound-guided PDT showed superiority over landmark PDT in terms of less number of trials, midline puncture and fewer complications. However, it took a little longer to perform USG-guided PDT.

Airway Ultrasound in Critically Ill Patients: A Narrative Review

Airway assessment and management have a central role in critical care medicine. Airway ultrasound can help us evaluate the anatomy, facilitate interventions such as intubation in difficult airways and tracheostomy, prevent post-extubation complications, and diagnose dysphagia. In this review, we will summarize the current use of ultrasound in airway assessment and management in critically ill patients.

Percutaneous dilatational tracheostomy with single use bronchoscopes versus reusable bronchoscopes – a prospective randomized trial (TraSUB)

Background

Apart from conventional reusable bronchoscopes, single-use bronchoscopes (SUB) were recently introduced. Data suggest that SUB might prevent from the risk of cross contamination (i.e. multiresistant pathogens, SARS CoV-2) and save costs. We aimed to investigate visualization, ventilation, handling characteristics, changes in patients’ gas exchange, and costs associated with both types of bronchoscopes during percutaneous dilatational tracheostomy (PDT).

Methods

In this prospective, randomized, noninferiority study, 46 patients undergoing PDT were randomized 1:1 to PDT with SUB (Ambu aScope) or reusable bronchoscopes (CONV, Olympus BF-P60). Visualization of tracheal structures rated on 4-point Likert scales was the primary end-point. Furthermore, quality of ventilation, device handling characteristics, changes in the patients’ gas exchange, pH values, and costs were assessed.

Results

Noninferiority for visualization (the primary endpoint) was demonstrated for the SUB group. Mean visualization scores (lower values better) were 4.1 (95% confidence intervals: 3.9;4.3) for SUB vs. 4.1 (4.0;4.2) for CONV. Noninferiority of ventilation (estimated by minute volume and SpO₂) during the procedure could be shown as well. Mean score was 2.6 (2.0;3.1) for SUB vs. 2.4 (2.1;2.7) for CONV (lower values better). No significant differences regarding handling (SUB: 1.2 (1.0;1.4), CONV: 1.3 (1.1;1.6)), blood gas analyses and respiratory variables were found. Cost analysis in our institution revealed 93 € per conventional bronchoscopy versus 232.50 € with SUB, not considering an estimate for possible infection due to cross-contamination with the reusable device.

Conclusion

In our study, visualization and overall performance of the SUB during PDT were noninferior to reusable bronchoscopes. Therefore, PDT with SUB is feasible and should be considered if favored by individual institution’s cost analysis.

Trial registration.

ClinicalTrials.gov, NCT03952247. Submitted for registration on 28/04/2019 and first posted on 16/05/2019.

Comparison of landmark guided and ultrasound guided percutaneous dilatational tracheostomy: Efficiency, efficacy and accuracy in critically ill patients

Background and Aims:

To overcome the procedure-related complications associated with landmark-guided percutaneous dilatational tracheostomy (PDT) ultrasound is emerging as a promising tool. Present study was designed to compare landmark-guided PDT and ultrasound-guided PDT in terms of efficiency, efficacy, and accuracy.

Material and Methods:

Hundred intensive care unit patients requiring prolonged mechanical ventilation were prospectively randomized into 2 groups of 50 patients each. In land mark guided (LMG) group, patients underwent landmark-guided PDT, whereas in ultrasound guided (USG) group, patients underwent ultrasound-guided PDT.

Results:

Both the groups were comparable in terms of demographic data, sequential organ failure assessment score, ventilator settings, and mean days on mechanical ventilation prior to PDT. The mean assessment time in the ultrasound-guided group (1.56 ± 1 min) was significantly more (P-value = 0.000) than in the landmark-guided group (0.84 ± 0.72 min). The mean total procedure time for the USG group (5.98 ± 10.23 min) was more than that for the LMG group (4.86 ± 8.03 min) (P-value 0.542). Deviation of puncture site from the midline was seen in two patients in group A as compared to none in the USG group (P-value = 0.153). The number of patients requiring more than one attempt for successful needle insertion was more (P-value = 0.148) in the LMG group (20%) as compared to USG group (8%). Incidence of complications, like bleeding and desaturation was more in the LMG group as compared to the USG group.

Conclusion:

Ultrasound-guided PDT is associated with reduction in periprocedural complications as compared to landmark technique, although it takes slightly longer time.

Fiber-optic Bronchoscope-guided vs Mini-surgical Technique of Percutaneous Dilatational Tracheostomy in Intensive Care Units

Background

Percutaneous dilatational tracheostomy (PCDT) using fiber-optic bronchoscope (FOB) is a widely practiced technique, but its availability and cost remain a concern in nations with limited resources. Mini-surgical technique of PCDT incorporating minimal blunt dissection has shown improved results even without the use of FOB. The study is primarily intended to compare these two techniques and establish a safer cost-effective alternative to FOB-guided PCDTs.

Patients and methods

This randomized comparative study [registered (CTRI/2018/04/013191)] was conducted on 120 mechanically ventilated patients. In 60 patients, mini-surgical PCDT (group-M) was performed with 2 cm longitudinal skin incision and blunt dissection till pretracheal fascia without FOB guidance using Portex-Ultraperc^™ sets. In remaining 60 patients, PCDT was performed under FOB vision with similar skin incision (without blunt dissection) using Portex-Ultraperc^™ sets (group-F). Two techniques were compared with regard to procedural time and percentage of complications occurred during or after the procedure.

Results

Procedure time [group-M: 6.30 ± 1.28 minutes; group-F: 14.43 ± 1.84 minutes (p <0.001)] and mean blood loss [group-M: 5.33 ± 1.69 mL; group-F: 6.87 ± 3.11 mL (p = 0.001)] was significantly less in group-M. Higher incidence of desaturation [group-M: 16.7%; group-F: 35% (p = 0.022)] was noted in group-F, whereas arrhythmias [group-M: 21.7%; group-F: 6.7% (p = 0.018)] were higher in group-M. There was no statistical difference in incidence of pneumothorax and subcutaneous emphysema. There was no incidence of posterior tracheal wall perforation in any of the patients.

Conclusion

Mini-surgical technique is a faster alternative of FOB-guided PCDT with comparable incidence of complications. It can safely be used in intensive care units (ICUs) where FOB is not available.

Clinical trial registration number

CTRI/2018/05/014307.

Name of registry

Clinical Trials Registry of India (CTRI), URL-http://ctri.nic.in.

How to cite this article

Kumar A, Kohli A, Kachru N, Bhadoria P, Wadhawan S, Kumar D. Fiber-optic Bronchoscope-guided vs Mini-surgical Technique of Percutaneous Dilatational Tracheostomy in Intensive Care Units. Indian J Crit Care Med 2021;25(11):1269-1274.

Comparative effectiveness of ultrasound-guided and anatomic landmark percutaneous dilatational tracheostomy: A systematic review and meta-analysis

Introduction

Ultrasound-guided tracheostomy (UGT) and bronchoscope-guided tracheostomy (BGT) have been well compared. However, the differences in benefits between UGT and landmark tracheostomy (LT) have not been addressed and, in particular, lack a detailed meta-analysis. We aimed to compare the first-pass success, complication rate, major bleeding rate, and tracheostomy procedure time between UGT and LT.

Methods

In a systematic review, relevant databases were searched for studies comparing UGT with LT in intubated patients. The primary outcome was the odds ratio (OR) of first-pass success. The secondary outcomes were the OR of complications, OR of major bleeding, and standardized mean difference (SMD) of the total tracheostomy procedure time.

Results

The meta-analysis included three randomized controlled studies (RCTs) and one nonrandomized controlled study (NRS), comprising 474 patients in total. Compared with LT, UGT increased first-pass success (OR: 4.287; 95% confidence interval [CI]: 2.308 to 7.964) and decreased complications (OR: 0.422; 95% CI: 0.249 to 0.718). However, compared with LT, UGT did not significantly reduce major bleeding (OR: 0.374; 95% CI: 0.112 to 1.251) or the total tracheostomy placement time (SMD: -0.335; 95% CI: -0.842 to 0.172).

Conclusions

Compared with LT, real-time UGT increases first-pass success and decreases complications. However, UGT was not associated with a significant reduction in the major bleeding rate. The total tracheostomy placement time comparison between UGI and LT was inconclusive.

Managing complications of percutaneous tracheostomy and gastrostomy

Percutaneous tracheostomy and gastrostomy are some of the most commonly performed procedures at bedside in the intensive care unit. While they are generally considered safe, they can be associated with numerous short and long-term complications, many of which can occur long after their placement and cause significant morbidity. Performers of these procedures should possess a comprehensive understanding of procedural indications and contraindications, and know how to recognize and manage complications that may arise. In this review, we highlight complications of percutaneous tracheostomy and describe strategies for their prevention and management, with a special focus on post-tracheostomy tracheal stenosis. Other complications reviewed include bleeding, pneumothorax and subcutaneous emphysema, posterior wall injury, tube displacement, tracheomalacia, tracheoinominate artery fistula, tracheo-esophageal fistula, and stomal cellulitis. Gastrostomy complications and their management are also discussed including bleeding, internal organ injury, necrotizing fasciitis, aspiration pneumonia, buried bumper syndrome, tumor seeding, wound infection, tube displacement, peristomal leakage, and gastric outlet obstruction. In light of the potentially serious outcomes associated with complications of percutaneous tracheostomy and gastrostomy, the emphasis should be placed on risk-reduction strategies to minimize morbidity and mortality. We therefore present detailed pragmatic and comprehensive checklists to serve as a reference for clinicians involved in performing these procedures.

Traqueostomía en cuidados intensivos en pacientes COVID-19

Introducción

La neumonía adquirida en la comunidad por COVID-19 ha sido una causa reciente y frecuente de ingreso en las unidades de cuidados intensivos en todo el mundo. Su rápida expansión y su elevado número de casos hace que existan muchas preguntas abiertas en cuanto a su manejo, tratamiento y seguimiento. Uno de estos es la realización de traqueostomía en los pacientes afectados por esta neumonía ingresados en cuidados intensivos.

Material y métodos

Se realiza un estudio retrospectivo, observacional, con todos los enfermos que ingresan en el servicio de medicina intensiva en un hospital universitario con el diagnóstico clínico o analítico de neumonía por COVID-19. Se analizan todos los pacientes que durante su ingreso requieren conexión a ventilación mecánica y realización de traqueostomía durante su manejo.

Resultados

Se analizan un total de 37 pacientes. El 70,3% de la muestra son varones (26/37); edad media 59,4 ± 9,4 y APACHE II 14,8 ± 4,67. Los días medios de ventilación mecánica previa a la realización de traqueostomía fue de 11 ± 2,66. Se realizó traqueostomía percutánea en el 86,5% (32/37) de los casos. En 3 ocasiones se realizó en la primera semana. En 3 tras los primeros 14 días, y en 31/37 en el trascurso de la segunda semana. Diecisiete pacientes han sido decanulados (46%). Los días medios desde realización de traqueostomía hasta la decanulación ha sido de 17,7 ± 10,6 días. Dieciséis de estos 17 pacientes ha sido dado de alta del hospital. En nuestra muestra, el tipo de técnica no se asocia con una mayor mortalidad o tasa de complicaciones.

Conclusiones

Presentamos los resultados de 37 pacientes que requieren traqueostomía como parte del manejo de neumonía por COVID-19 en un hospital universitario. Descripción de la técnica realizada y pronóstico.

Prolonged Weaning: S2k Guideline Published by the German Respiratory Society

Mechanical ventilation (MV) is an essential part of modern intensive care medicine. MV is performed in patients with severe respiratory failure caused by respiratory muscle insufficiency and/or lung parenchymal disease; that is, when other treatments such as medication, oxygen administration, secretion management, continuous positive airway pressure (CPAP), or nasal high-flow therapy have failed. MV is required for maintaining gas exchange and allows more time to curatively treat the underlying cause of respiratory failure. In the majority of ventilated patients, liberation or "weaning" from MV is routine, without the occurrence of any major problems. However, approximately 20% of patients require ongoing MV, despite amelioration of the conditions that precipitated the need for it in the first place. Approximately 40-50% of the time spent on MV is required to liberate the patient from the ventilator, a process called "weaning". In addition to acute respiratory failure, numerous factors can influence the duration and success rate of the weaning process; these include age, comorbidities, and conditions and complications acquired during the ICU stay. According to international consensus, "prolonged weaning" is defined as the weaning process in patients who have failed at least 3 weaning attempts, or require more than 7 days of weaning after the first spontaneous breathing trial (SBT). Given that prolonged weaning is a complex process, an interdisciplinary approach is essential for it to be successful. In specialised weaning centres, approximately 50% of patients with initial weaning failure can be liberated from MV after prolonged weaning. However, the heterogeneity of patients undergoing prolonged weaning precludes the direct comparison of individual centres. Patients with persistent weaning failure either die during the weaning process, or are discharged back to their home or to a long-term care facility with ongoing MV. Urged by the growing importance of prolonged weaning, this Sk2 Guideline was first published in 2014 as an initiative of the German Respiratory Society (DGP), in conjunction with other scientific societies involved in prolonged weaning. The emergence of new research, clinical study findings and registry data, as well as the accumulation of experience in daily practice, have made the revision of this guideline necessary. The following topics are dealt with in the present guideline: Definitions, epidemiology, weaning categories, underlying pathophysiology, prevention of prolonged weaning, treatment strategies in prolonged weaning, the weaning unit, discharge from hospital on MV, and recommendations for end-of-life decisions. Special emphasis was placed on the following themes: (1) A new classification of patient sub-groups in prolonged weaning. (2) Important aspects of pulmonary rehabilitation and neurorehabilitation in prolonged weaning. (3) Infrastructure and process organisation in the care of patients in prolonged weaning based on a continuous treatment concept. (4) Changes in therapeutic goals and communication with relatives. Aspects of paediatric weaning are addressed separately within individual chapters. The main aim of the revised guideline was to summarize both current evidence and expert-based knowledge on the topic of "prolonged weaning", and to use this information as a foundation for formulating recommendations related to "prolonged weaning", not only in acute medicine but also in the field of chronic intensive care medicine. The following professionals served as important addressees for this guideline: intensivists, pulmonary medicine specialists, anaesthesiologists, internists, cardiologists, surgeons, neurologists, paediatricians, geriatricians, palliative care clinicians, rehabilitation physicians, intensive/chronic care nurses, physiotherapists, respiratory therapists, speech therapists, medical service of health insurance, and associated ventilator manufacturers.

Pilot Study of Trans-oral Robotic-Assisted Needle Direct Tracheostomy Puncture in Patients Requiring Prolonged Mechanical Ventilation

COVID-19 can induce severe respiratory problems that need prolonged mechanical ventilation in the intensive care unit. While Open Tracheostomy (OT) is the preferred technique due to the excellent visualization of the surgical field and structures, Percutaneous Tracheostomy (PT) has proven to be a feasible minimally invasive alternative. However, PT's limitation relates to the inability to precisely enter the cervical trachea at the exact spot since the puncture is often performed based on crude estimation from anatomical laryngeal surface landmarks. Besides, there is no absolute control of the trajectory and force required to make the percutaneous puncture into the trachea, resulting in inadvertent injury to the cricoid ring, cervical esophagus, and vessels in the neck. Therefore, we hypothesize that a flexible mini-robotic system, incorporating the robotic needling technology, can overcome these challenges by allowing the trans-oral robotic instrument of the cervical trachea. This approach promises to improve current PT technology by making the initial trachea puncture from an “inside-out” approach, rather than an “outside-in” manner, fraught with several technical uncertainties.

Comparison of percutaneous dilatational tracheotomy versus open surgical technique in severe COVID-19: Complication rates, relative risks and benefits

Objective

Patients with acute respiratory failure due to COVID-19 have a high likelihood of needing prolonged intubation and may subsequently require tracheotomy. Usually, the choice of technique (percutaneous dilatational tracheotomy [PDT] versus open surgical tracheotomy [OST]) depends on the preference of surgeons and patient-related factors. In case of COVID-19, airborne spread of viral particles and limited time of apnea must be considered in the choice of the safest technique. The aim of this study is to compare the complication rates and offer an assessment of relative risks and benefits of PDT versus OST in patients with severe COVID-19.

Methods

We performed a retrospective study considering 47 consecutive patients affected by severe acute respiratory distress syndrome due to SARS-CoV-2 infection, needing invasive mechanical ventilation and subsequent tracheostomy. This study was performed at the Intensive Care Unit of our tertiary referral center. Complication rates were analyzed.

Results

Seventeen patients underwent PDT and 30 patients were submitted to OST. Twenty-six patients (55.3%) had post-operative complications (local infection, hemorrhage, subcutaneous emphysema) with no significant difference between PDT and OST.

Conclusion

PDT and OST are characterized by similar postoperative complication rates in severe COVID-19 patients. These findings suggest that OST might be preferred if expert ENT surgeons are available, as PDT could result in longer apnea and exposure to generated aerosol. However, authors recommend considering either OST or PDT at the discretion of the medical staff involved, according to the personal experience of the operators performing the procedure.

Safety of the endotracheal tube for prolonged mechanical ventilation

RATIONALE

The endotracheal tube (ETT) is the most common route for invasive mechanical ventilation (MV) yet controversy attends its long-term safety.

OBJECTIVE

Assess the safety of ETT compared with tracheostomy tube (TT) for MV support in the intensive care unit (ICU).

METHODS

Retrospective analysis of five year national dataset of 128,977 adults (age > 15-years) admitted for MV therapy with tracheostomy tube (TT; n = 4772) or without (ETT; n = 124,204), excluding those with neurological diagnoses or likely to require a surgical airway (n = 27,466), in 93 public health service ICUs across Australia, between July 2013-June 2018.

MEASUREMENTS

Hospital survival (including liberation from MV) for ETT Group compared with TT Group using a probit regression model adjusted for confounding using fixed, endogenous and non-random treatment assignment covariates, and their interactions; analysed and plotted as marginal effects by duration of MV.

RESULTS

Median duration of MV was 2 (IQR =1-4) days, predominantly via ETT (124,205; 96.3%), and 21,620 (16.7%) died. Temporal trend for ETT increased (OR = 1.06 per year, 95%CI =1.03-1.10) compared to TT, even for prolonged (>3 weeks) MV (38.1%). Higher risk-adjusted mortality was associated with longer duration of MV and after 9 days of MV with retention of ETT compared with TT - average (mortality) treatment effect 12.6% (95%CI =10.7-14.5). The latter was not significant after 30 days of MV.

CONCLUSIONS

The safety of ETT compared with TT beyond short-term MV (≤9-days) is uncertain and requires prospective evaluation with additional data.

Ultrasound guided percutaneous dilatation tracheotomy (US-PDT) to prevent potentially life-threatening complications: A case report

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Percutaneous dilatation tracheotomy enables non-surgeons to perform tracheotomies at patients bedside.

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Bleeding is a common complication of percutaneous dilatation tracheotomies.

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Performing a pre-operative neck ultrasound can help identifying aberrant vessels and reduce the risk of periprocedural bleeding.

Introduction

Percutaneous dilatation tracheotomy (PDT) is a relatively recent technique that enables non surgeons to perform tracheotomies at bedside reducing operation rooms schedules. It is burdened by a moderate risk of postoperative bleeding.

Presentation of case

The patient was a 57 years old with a temporal intraparenchymal hematoma, submitted to percutaneous dilatation tracheotomy. Despite the favorable anatomical features, a pre-procedural US was performed, identifying a pulsating vessel with an arterial pattern, 2 cm above the hollow. The procedure was then considered at high risk, an operation room was required for the technique and an on-call surgeon was alerted.

The procedure was ended safely and any bleeding was avoided because the technique was practiced with the best precautions.

Discussion

PDT strength is the possibility for non surgeons to perform tracheotomies in selected patients at bedside, reducing operation rooms congestion. Such technique though is a “blind” technique, and postoperative bleedings can occur and represent a feared complication. Conversely, the surgical tracheotomy permits a better control of hemorrhages, but needs the involvement of a surgeon and availability of an operation room. Performing a PDT guided by a neck ultrasound is useful to identify eventual aberrant vessel whose course could complicate the tracheotomy, it is part of PDT guidelines of some States.

Conclusion

US-PDT could help reducing procedure related complications selecting those high risk patients still in need of operating room and surgical assistance. US-PDT feasibility combined to its easy availability and low costs encourage its introduction into everyday practice.

Percutaneous dilatational tracheostomy in patients with mechanical circulatory support: Is the procedure safe?

Background

We aimed to investigate the efficacy and safety of percutaneous dilatational tracheostomy procedure following cardiac surgery in patients receiving extracorporeal membrane oxygenation and/or left ventricular assist device.

Methods

A total of 42 patients (10 males, 32 females; mean age 51±14.6 years; range, 18 to 77 years) who underwent percutaneous dilatational tracheostomy procedure under extracorporeal membrane oxygenation and/or left ventricular assist device support between January 2017 and January 2019 were retrospectively analyzed. Laboratory data, Simplified Acute Physiology Score-II and Sequential Organ Failure Assessment scores, and major and minor complications were recorded. The 30-day and one-year follow-up outcomes of the patients were reviewed.

Results

Of 42 patients, 17 (42.5%), 14 (33.3%), and 11 (26.2%) received left ventricular assist device, extracorporeal membrane oxygenation, and extracorporeal membrane oxygenation + left ventricular assist device, respectively. During percutaneous dilatational tracheostomy, the laboratory values of the patients were as follows: international normalized ratio, 2.3±0.9; partial thromboplastin time, 59.4±19.5 sec; platelet count, 139.2±65.8×109/L, hemoglobin, 8.8±1.0 g/dL, and creatinine, 1.6±1.0 mg/dL. No peri-procedural mortality, major complication, or bleeding was observed. We observed minor complications including localized stomal ooze in four patients (8.3%) and local stomal infection in three patients (6.2%).

Conclusion

Our study results suggest that percutaneous dilatational tracheostomy is an effective and safe technique in this patient population.

Outcomes after percutaneous dilatation tracheostomy: Patients view 6 years after the procedure

BACKGROUND

Percutaneous dilatational tracheostomy have been performed increasingly since its introduction in 1985, and is today one of the most commonly performed operative procedures in intensive care units. The aim of this study was to document patient-reported outcomes from percutaneous dilatational tracheostomy after hospital discharge.

METHODS

This study is based on retrospective extraction of data from the databases in the ICU at Haukeland University Hospital from 2004 to 2016. Patients alive by April 2018 and with a code for dilatation tracheostomy were sent a questionnaire about their experiences with having a tracheostomy performed. The occurrence of problems and their relations were registered.

RESULTS

Of 5769 admitted patients, 900 patients ≥ 15 years (15.7%) had a percutaneous dilatation tracheostomy performed. The median time from admission to follow-up was 6.1 years, and the 30 days mortality in those who received a tracheostomy was 315/900 (35%). Of the 441 survivors contacted, 181 answered the questionnaire and a total of 293 problems were reported. The majority of these problems were reported as no or moderate in 115 patients (78.3%). The presence of any problem was significantly associated with occurrence for other problems; however, there were no significant differences related to the elapsed time since the ICU stay. Pain and difficulties with breathing were the two single factors most often related to occurrence of other problems.

CONCLUSION

Although self-reported problems after percutaneous tracheostomy occurring after hospital discharge were often reported, most (78.3%) were considered by the patients to be moderate.

Use of Tracheostomy During the COVID-19 Pandemic: American College of Chest Physicians/American Association for Bronchology and Interventional Pulmonology/Association of Interventional Pulmonology Program Directors Expert Panel Report

Background

The role of tracheostomy during the coronavirus disease 2019 (COVID-19) pandemic remains unknown. The goal of this consensus statement is to examine the current evidence for performing tracheostomy in patients with respiratory failure from COVID-19 and offer guidance to physicians on the preparation, timing, and technique while minimizing the risk of infection to health care workers (HCWs).

Methods

A panel including intensivists and interventional pulmonologists from three professional societies representing 13 institutions with experience in managing patients with COVID-19 across a spectrum of health-care environments developed key clinical questions addressing specific topics on tracheostomy in COVID-19. A systematic review of the literature and an established modified Delphi consensus methodology were applied to provide a reliable evidence-based consensus statement and expert panel report.

Results

Eight key questions, corresponding to 14 decision points, were rated by the panel. The results were aggregated, resulting in eight main recommendations and five additional remarks intended to guide health-care providers in the decision-making process pertinent to tracheostomy in patients with COVID-19-related respiratory failure.

Conclusion

This panel suggests performing tracheostomy in patients expected to require prolonged mechanical ventilation. A specific timing of tracheostomy cannot be recommended. There is no evidence for routine repeat reverse transcription polymerase chain reaction testing in patients with confirmed COVID-19 evaluated for tracheostomy. To reduce the risk of infection in HCWs, we recommend performing the procedure using techniques that minimize aerosolization while wearing enhanced personal protective equipment. The recommendations presented in this statement may change as more experience is gained during this pandemic.

Life-threatening tension pneumothorax after unsuccessful tracheostomy tube exchange in a trauma patient - A case report

Background

Tracheostomy tube exchange is a common and safe procedure. However, when the tracheocutaneous tract is not completely mature, cannula exchange or endotracheal tube insertion via the tracheostomy site can rarely induce life-threatening complications, including subcutaneous emphysema, loss of airway, tension pneumothorax, and pneumoperitoneum.

Case

We report a case of life-threatening tension pneumothorax developed during tracheostomy tube exchange with a reinforced endotracheal tube for a planned facial surgery after recent tracheostomy in a trauma patient.

Conclusions

Understanding of the pathogenesis and the use of preventive strategies based on it are expected to provide safer and more effective anesthetic management to patients with tracheostomy.

Performing Percutaneous Dilational Tracheostomy without using Fiberoptic Bronchoscope

BACKGROUND

Percutaneous tracheostomy is an elective method that is increasingly being taken up in the intensive care unit alongside the patient's bed. In many centers, bronchoscopy is used, but the necessity of using bronchoscopy in percutaneous tracheostomy has not yet been determined. Discontinuing use of bronchoscopy can potentially reduce the cost and increase the efficiency of percutaneous tracheostomy. Therefore, in this study, we performed a percutaneous dilatational tracheostomy without using fiberoptic bronchoscopy.

MATERIALS AND METHODS

This study was performed as a descriptive epidemiological survey among 70 patients in Shahid Rajaei Hospital of Qazvin in 2015 and 2016. The results were assessed in the patients.

RESULTS

In this study, pneumothorax, trauma, major and minor bleeding, cuff leak and change to surgical procedures as well as accidental extubation were not seen. However, subcutaneous emphysema, mal-position and hypoxia each were seen in one patient (1.4%).

CONCLUSION

Totally the results demonstrated that percutaneous dilatation tracheostomy without fiberoptic bronchoscopic guidance is useful and safe.

Percutaneous Tracheostomy in Patients at High Risk of Bleeding Complications: A Retrospective Single-center Experience

Aims

To study the bleeding complications in patients undergoing percutaneous tracheostomy and who are at high risk of these complications (due to thrombocytopenia, use of anticoagulant or antiplatelet agents, and difficult anatomy).

Materials and methods

A retrospective study was undertaken, which included all patients undergoing percutaneous tracheostomy in the medical intensive care unit (MICU) of Rashid Hospital, Dubai, over a period of 15 months. Percutaneous tracheostomy was performed by senior medical intensivists using the single-tapered dilator technique under fiber optic bronchoscopic guidance. All patients underwent ultrasonographic evaluation of the neck to look for difficult anatomy and to determine the size of tracheostomy tube, etc. Patients were divided into two groups, those who were deemed to be at high risk of bleeding complications were compared with patients without any risk factors for bleeding complications. Other complications such as pneumothorax and tracheal leak were also looked for and were documented, if present. The data were summarized using descriptive statistics and the Fischer's exact test of significance was used for frequency distribution cross tables, at 5% level of significance (p value cutoff <0.05).

Results

One hundred and fifty-nine patients underwent percutaneous tracheostomy during the period of study. The age-group of patients ranged from 21 years to 104 years and males were predominant (65.41%). Of the 87 (54.71%) patients with one or more risk factors for bleeding, 53 (60.92%) patients had at least one risk factor for bleeding complications, while 34 (39.08%) had more than one risk factors. Bleeding was seen in total of two patients out of which one patient was in the group at risk of bleeding complications.

Conclusion

Percutaneous tracheostomy is a relatively safe procedure with very low rate of complications when performed with due precautions. Even in patients deemed to be at high risk of complications, the rate of complications is very low.

How to cite this article

Sasane SP, Telang MM, Alrais ZF, Alrahma AHNS, Khatib KI. Percutaneous Tracheostomy in Patients at High Risk of Bleeding Complications: A Retrospective Single-center Experience. Indian J Crit Care Med 2020;24(2):90–94.

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.

Antiplatelet agents and anticoagulants increased the bleeding risk of bedside percutaneous dilational tracheostomy in critically ill patients

BACKGROUND

The main objective of this study was to investigate the safety of bedside percutaneous dilational tracheostomy (PDT) by pulmonologists in critically ill patients, and the factors associated with complications resulting from PDT.

METHODS

We retrospectively enrolled critically ill patients who had undergone bedside PDT in the intensive care units (ICUs) and respiratory care center from February 2016 to December 2018.

RESULTS

A total of 312 patients were included for analysis, with a mean age of 69.6 ± 17.7 years. Two hundred and eight of the patients were male (66.7%). The mean acute physiology and chronic health evaluation II score was 25.3 ± 6.3, and the mean body mass index was 22.4 ± 4.2. Most of the patients were intubated due to respiratory disorders (51.3%). Fifty-six patients (17.9%) received antiplatelet agents or an anticoagulant regularly prior to PDT. All enrolled patients were undergone bedside PDT successfully. The total complication rate of PDT was 14.4%. Patients who took antiplatelet agents or anticoagulants regularly before PDT had a higher risk of bleeding than patients who went without (26.8% versus 7.0%, adjusted odds ratio 4.93 [95% f 2.16-11.25], p < 0.001). Finally, a longer length of intubation resulted in a higher probability in the length of ICU stay being ≧28 days (adjusted odds ratio 1.11 [95% CI 1.08-1.14], p < 0.001).

CONCLUSION

Our study demonstrated that it was feasible for pulmonologists to perform bedside PDT in critically ill patients. However, antiplatelet agents and anticoagulants use increased the risk of bleeding in PDT patients.

[The obese patient and acute respiratory failure, a challenge for intensive care]

As a result of the constantly increasing epidemic of obesity, it has become a common problem in the intensive care unit. Morbid obesity has numerous consequences for the respiratory system. It affects both respiratory mechanics and pulmonary gas exchange, and dramatically impacts on the patient's management and outcome. With the potential for causing devastating respiratory complications, the particular anatomical and physiological characteristics of the respiratory system of the morbidly obese subject should be carefully taken into consideration. The present article reviews the management of obese patients in respiratory failure, from noninvasive ventilation to tracheostomy, including postural and technical issues, and explains the physiologically based ventilatory strategy both for NIV and invasive mechanical ventilation up to the weaning from the ventilatory support.

Trends in tobacco use and tobacco cessation counselling codes among Medicare beneficiaries, 2001-2014

Background

Analysis of Medicare data is often used to determine epidemiology, healthcare utilization and effectiveness of disease treatments. We were interested in whether Medicare data could be used to estimate prevalence of tobacco use. Currently, data regarding tobacco use is derived from Behavioral Risk Factor Surveillance System (BRFSS) survey data.

We compare administrative claims data for tobacco diagnosis among Medicare beneficiaries to survey (BRFSS) estimates of tobacco use from 2001 to 2014.

Methods

Retrospective cross-sectional study comparing tobacco diagnoses using International Classification of Disease, Ninth Revision (ICD-9) codes for tobacco use in Medicare data to BRFSS data from 2001 to 2014 in adults age ≥ 65 years. Beneficiary data included age, gender, race, socioeconomic status, and comorbidities. Tobacco cessation counselling was also examined using Healthcare Common Procedure Coding System codes.

Results

The prevalence of Medicare enrollees aged ≥65 years who had a diagnosis of current tobacco use increased from 2.01% in 2001 to 4.8% in 2014, while the estimates of current tobacco use from BRFSS decreased somewhat (10.03% in 2001 vs. 8.77% in 2014). However, current tobacco use based on Medicare data remained well below the estimates from BRFSS. Use of tobacco cessation counselling increased over the study period with largest increases after 2010.

Conclusions

The use of tobacco-related diagnosis codes increased from 2001 to 2014 in Medicare but still substantially underestimated the prevalence of tobacco use compared to BRFSS data.

Guidelines for diagnostic flexible bronchoscopy in adults: Joint Indian Chest Society/National College of chest physicians (I)/Indian association for bronchology recommendations

Flexible bronchoscopy (FB) is commonly performed by respiratory physicians for diagnostic as well as therapeutic purposes. However, bronchoscopy practices vary widely across India and worldwide. The three major respiratory organizations of the country supported a national-level expert group that formulated a comprehensive guideline document for FB based on a detailed appraisal of available evidence. These guidelines are an attempt to provide the bronchoscopist with the most scientifically sound as well as practical approach of bronchoscopy. It involved framing appropriate questions, review and critical appraisal of the relevant literature and reaching a recommendation by the expert groups. The guidelines cover major areas in basic bronchoscopy including (but not limited to), indications for procedure, patient preparation, various sampling procedures, bronchoscopy in the ICU setting, equipment care, and training issues. The target audience is respiratory physicians working in India and well as other parts of the world. It is hoped that this document would serve as a complete reference guide for all pulmonary physicians performing or desiring to learn the technique of flexible bronchoscopy.

Ethical and legal issues of tracheostomy ventilation in patients with amyotrophic lateral sclerosis

Doctors owe a legal duty of care to patients, of which legal standard of care, especially on advice, evolves over time. With the modified Montgomery test, informed consent involves a process of best interests decision-making accompanied by disclosure of relevant information in a comprehensible fashion, to the patient. Ethical issues confronting treatment decision and advice are also manifold and have to be confronted. For example, in amyotrophic lateral sclerosis (ALS), an incurable disease, death is usually due to respiratory failure. Tracheostomy ventilation (TV) may be the only alternative to death, yet patients on TV may be subject to the relentless progression of ALS resulting in a locked-in state. Through a case vignette of invasive ventilation for ALS, we examine the ethical and legal issues regarding choice of assisted ventilation in these patients, especially for TV, to ensure reasoned and defensible methodology in patient care. We also include a tracheostomy counselling info kit applicable for use prior to tracheostomy insertion.

Lung aeration and ventilation after percutaneous tracheotomy measured by electrical impedance tomography in non-hypoxemic critically ill patients: a prospective observational study

Background

Percutaneous dilatational tracheotomy (PDT) may lead to transient impairment of pulmonary function due to suboptimal ventilation, loss of positive end-expiratory pressure (PEEP) and repetitive suction maneuvers during the procedure. Possible changes in regional lung aeration were investigated using electrical impedance tomography (EIT), an increasingly implied instrument for bedside monitoring of pulmonary aeration.

Methods

With local ethics committee approval, after obtaining written informed consent 29 patients scheduled for elective PDT under bronchoscopic control were studied during mechanical ventilation in supine position. Anesthetized patients were monitored with a 16-electrode EIT monitor for 2 min at four time points: (a) before and (b) after initiation of neuromuscular blockade (NMB), (c) after dilatational tracheostomy (PDT) and (d) after a standardized recruitment maneuver (RM) following surgery, respectively. Possible changes in lung aeration were detected by changes in end-expiratory lung impedance (Δ EELI). Global and regional ventilation was characterized by analysis of tidal impedance variation.

Results

While NMB had no detectable effect on EELI, PDT led to significantly reduced EELI in dorsal lung regions as compared to baseline, suggesting reduced regional aeration. This effect could be reversed by a standardized RM. Mean delta EELI from baseline (SE) was: NMB − 47 ± 62; PDT − 490 ± 180; RM − 89 ± 176, values shown as arbitrary units (a.u.). Analysis of regional tidal impedance variation, a robust measure of regional ventilation, did not show significant changes in ventilation distribution.

Conclusion

Though changes of EELI might suggest temporary loss of aeration in dorsal lung regions, PDT does not lead to significant changes in either regional ventilation distribution or oxygenation.

[Airway management in intensive care and emergency medicine : What is new?]

In acute respiratory insufficiency, oxygenation and/or ventilation support by mechanical ventilation is an integral part of intensive care and emergency medicine. Effective airway management is essential to prevent hypoxic complications during the securing of the airway. This includes for example the recognition of difficult airways and adequate pre-oxygenation. While the laryngeal tube can be used in the context of cardiopulmonary resuscitation in emergency medicine, endotracheal intubation is standard in intensive care medicine. In addition to direct laryngoscopy (DL), indirect laryngoscopy using video laryngoscopy (VL) is also available. Compared to DL, advantages in intubation success, anticipated difficult airways, and a reduction of mucosa damage have been shown for VL, whereas the advantage for intubation success could only be demonstrated for experienced physicians who should always be present due to the potential complications of intubation. With regard to mortality and incidence of hypoxia, no difference between DL and VL could be shown. According to current data, the VL should not be used preclinically. A tracheostomy is often performed for long-term ventilation. It is still unclear which patients benefit from an early tracheostomy. Usually the bed-side percutaneous dilatation tracheostomy technique is used, which is often performed under bronchoscopic guidance.