Percutaneous tracheostomy: a 6 yr prospective evaluation of the single tapered dilator technique

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.

Therapeutic outcomes of laryngeal closure and laryngostomy in children with recurrent pneumonia

PURPOSE

Children with medical complexity frequently experience difficulty breathing and swallowing and occasionally develop aspiration pneumonia. Long-term intubation may cause fatal trachea-innominate artery fistula (TIF). In the present study, we retrospectively evaluated the efficacy of laryngeal closure and laryngostomy in children with medical complexity.

MATERIALS AND METHODS

Laryngeal closure and laryngostomy were performed in eight children with severe neuromuscular disorders who were incapable of oral ingestion and verbal communication. The laryngostoma was placed at a higher position compared to that in conventional tracheostomies for easier management of the airway and to prevent TIF.

RESULTS

Aspiration was successfully prevented postoperatively in all cases. Laryngocutaneous fistula formation was not observed. Two patients successfully achieved oral ingestion capability and tracheal cannulas were removed in two patients. Among the six patients who needed a mechanical ventilator before surgery, two patients were weaned from mechanical ventilation. Five patients were successfully discharged from the hospital. Although two patients died because of their primary condition, pneumonia exacerbation was not observed in any of the patients.

CONCLUSION

Compared to the conventional tracheostomy, our procedure improved airway management and function in children with medical complexity and reduced the risk of TIF.

Tracheocarotid artery fistula in a patient who had tracheostomy successfully treated with a saphenous vein graft

Tracheoarterial fistula is a complication of tracheostomy with a high associated mortality. A 25-year-old male patient with Duchenne's muscular dystrophy underwent a percutaneous tracheostomy using the single tapered dilator (Blue Rhino) technique to facilitate weaning from mechanical ventilation. Nine weeks after the procedure, he developed significant upper airway bleeding, leading to haemodynamic instability. A CT angiogram of the neck and thorax did not reveal a source of the bleeding. The patient was subsequently transferred to the operating theatre where a 1 cm defect in the right common carotid artery was found and repaired with a graft from the left short saphenous vein. Clinicians who undertake tracheostomy formation should be aware of the possibility of tracheoarterial defect and may wish to discuss it at tracheostomy formation. It should be considered early in the event of a significant bleed. This case identifies deep tissue infection and misplacement of the tracheostomy tube as major contributing factors to fistula formation.

Can we improve teaching and learning of percutaneous dilatational tracheostomy's bronchoscopic guidance?

Percutaneous dilatational tracheostomy has become the technique of choice in multiple intensive care units. Among innovations to improve procedural safety and success, bronchoscopic guidance of percutaneous dilatational tracheostomy has been advocated and successfully implemented by multiple groups. Most published literature focuses on the percutaneous dilatational tracheostomy operator, with scarce descriptions of the bronchoscopic particularities of the procedure. In this article, we provide 10 suggestions to enhance specific procedural aspects of bronchoscopic guidance of percutaneous dilatational tracheostomy, and strategies to optimize its teaching and learning, in order to promote learners' competence acquisition and increase patient safety.

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.

Assessment of the percutaneous dilatational tracheostomy technique in experimental manikins and canine cadavers

OBJECTIVE

To evaluate procedure time, ease of placement, and complication rates of percutaneous dilatational tracheostomy (PDT) compared to surgical tracheostomy (ST) in canine cadavers.

DESIGN

Randomized crossover experimental manikin and cadaver study involving 6 novice veterinary students.

SETTING

University teaching hospital.

ANIMALS

Canine tracheostomy training manikin, 24 canine cadavers.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

For training, each student performed 10 PDT and 10 ST procedures on a training manikin, followed by 2 PDT and 2 ST procedures on a canine cadaver. After each training procedure, feedback from bronchoscopy and observers was provided. Final PDT and ST tube placements using new equipment were performed in unused cadavers. Placements were timed, ease of placement was scored using visual analog scales (VAS, 0-10 cm), and complications were assessed by two independent observers using ordinal scales (0-3). Cadaver tracheas were explanted postprocedure to evaluate anatomical damage scores (0-3). Procedure time and VAS scores for PDT and ST procedures were analyzed using mixed-effects linear models, accounting for student, technique, and procedure number with post hoc pairwise comparisons. Data are presented as median (range). For the final cadaver placement, there were no significant differences in placement time (300 seconds [230-1020] vs 188 seconds [116-414], P = 0.210), ease of placement (3.8 cm [2.1-5.7] vs 1.9 cm [0-4.7], P = 0.132), anatomical damage score (1 [0-2] vs 0 [0-1], P = 0.063), or equipment complications score (0 [0-1] vs 0 [0-0], P = 1.000) between PDT and ST, respectively.

CONCLUSIONS

These data suggest that PDT can be performed as quickly, as easily, and as safely as ST in a canine cadaver by novice veterinary students following manikin training. Additional studies will be required to determine if these findings can be translated into veterinary clinical practice.

Short- and long-term complications of surgical and percutaneous dilatation tracheotomies: a large single-centre retrospective cohort study

Objectives

The aim of this study was to determine and compare the incidence of long- and short-term complications of percutaneous dilatation tracheotomies (PDT) and surgical tracheotomies (ST).

Design

A single-centre retrospective study.

Participants

305 patients undergoing a tracheotomy (PDT or ST) in the University Medical Center Groningen from 2003 to 2013 were included. Data were gathered from patient files.

Main outcome measures

Short-term and long-term complications including tracheal stenosis.

Results

The incidence of short- and long-term complications, including tracheal stenosis, was similar in both groups. Analysis of a small high-risk subgroup showed no difference in long-term complications.

Conclusions

The rate of short- and long-term complications, including tracheal stenosis, is equal in PDT and ST. PDT is a safe alternative for ST in selected patients.

Safety of Percutaneous Dilatational Tracheostomy During Veno-Venous Extracorporeal Membrane Oxygenation Support in Adults With Severe Respiratory Failure

OBJECTIVES

To investigate the safety of percutaneous dilatational tracheostomy in severe respiratory failure patients during veno-venous extracorporeal membrane oxygenation support.

DESIGN

A single-center, retrospective, observational cohort study.

SETTING

Tertiary referral severe respiratory failure center, university teaching hospital.

PATIENTS

Severe respiratory failure patients consecutively admitted and supported with veno-venous extracorporeal membrane oxygenation between January 2010 and December 2015.

INTERVENTION

A bronchoscopy-guided percutaneous dilatational tracheostomy was performed in all cases.

MEASUREMENTS AND MAIN RESULTS

Sixty-five veno-venous extracorporeal membrane oxygenation patients (median [interquartile range] age, 47 yr [interquartile range, 35-59 yr]; 39 males; Acute Physiology and Chronic Health Evaluation-II score, 18 [interquartile range, 17-22] Sequential Organ Failure Assessment score, 10 [interquartile range, 7-16]) underwent percutaneous dilatational tracheostomy. Ten patients (15%) developed one or more major complications. Of these, seven (11%) had major bleeding, and three of these also required circuit change due to extracorporeal membrane oxygenation circuit dysfunction. Two more patients (3.1%) presented with isolated extracorporeal membrane oxygenation circuit dysfunction requiring circuit change, and one developed bilateral pneumothoraces (1.5%) requiring intercostal drain insertion. Patients who developed complications had significantly lower extracorporeal membrane oxygenation postoxygenator PO2 prior to percutaneous dilatational tracheostomy (45.8 kPa [interquartile range, 36.9-56.5 kPa] vs 57.9 kPa [interquartile range, 45.1-64.2 kPa]; p = 0.019]. On multivariate analysis, including demographic, clinical, biochemical, hematologic variables, and extracorporeal membrane oxygenation circuit functional variables, extracorporeal membrane oxygenation postoxygenator PO2 was the only independent variable associated with major complications following percutaneous dilatational tracheostomy (beta = -0.09; odds ratio, 0.9; 95% CI, 0.84-0.99; p = 0.03).

CONCLUSIONS

Percutaneous dilatational tracheostomy is associated with a considerable complication rate in veno-venous extracorporeal membrane oxygenation patients. Preprocedure circuit performance as indicated by extracorporeal membrane oxygenation postoxygenator PO2 is an independent predictor of major complications following percutaneous dilatational tracheostomy.

The ultrasound neck imaging for tracheostomy study: A study prompting ultrasound screening prior to percutaneous tracheostomy procedures to improve patient outcomes

Introduction

Percutaneous tracheostomy procedures are commonplace in intensive care units worldwide. Haemorrhagic complications, though potentially fatal, are thought to be under-reported. Ultrasonography use has not established itself in these procedures. This study assesses the prevalence and characteristics of pre-tracheal blood vessels, to aid intensivists on potential procedural hazards.

Method

A retrospective, observational study was performed in the UK. Computed tomography angiograms from January 2012 to October 2014 were randomly retrieved and analysed for vessel data.

Results

A total of 343 adult patients were included (mean age: 65 (inter-quartile range 52-79), male: 63%). Forty-one percent of patients demonstrated a vessel overlying percutaneous tracheostomy insertion sites (C6-T1); veins were more common than arteries (69%, p = 0.001). Males were more likely to display veins (78 vs. 53%, p < 0.001).

Discussion

A substantial proportion of patients exhibited pre-tracheal vessels. Front-of-neck ultrasonography has huge potential to identify these. Based on these data, we believe ultrasonography may be an effective screening tool for percutaneous tracheostomy procedures to reduce complications. Further research is required to study outcomes.

Tracheotomy-Related Deaths

BACKGROUND

Tracheotomies are frequently performed on ventilated patients in intensive care and sometimes lead to fatal complications. In this article, we discuss the causes and frequency of death associated with open surgical tracheotomy (OST) and percutaneous dilatational tracheotomy (PDT) on the basis of a review of the pertinent literature.

METHODS

We systematically searched the PubMed, EMBASE, and Cochrane Library databases and the Karlsruhe Virtual Catalog for publications (1990-2015) on tracheotomy-related deaths in adults, using the search terms "tracheotomy" and "tracheostomy." 39 relevant dissertations were included in the analysis as well.

RESULTS

109 publications were included. Of the 25 056 tracheotomies described, there were 16 827 PDTs and 7934 OSTs; for 295 tracheotomies, the technique used was not stated. 352 deaths were reported, including 113 in patients treated with PDT, 49 in those treated with OST, and 190 deaths related to a tracheotomy without specification of the method used. The frequency of death among patients with OST and those treated with PDT was similar: 0.62% for OST (95% confidence interval [0.47; 0.82]) and 0.67% for PDT ([0.56; 0.81]). The most common causes of death and their frequencies, as a percentage of all tracheotomies, were hemorrhage (OST: 0.26% [0.17; 0.40], PDT: 0.26% [0.19; 0.35]), loss of airway (OST: 0.21% [0.13; 0.34], PDT: 0.20% [0.14; 0.28]), and false passage (OST: 0.11% [0.06; 0.22], PDT: 0.20% [KI 0.15; 0.29]).

CONCLUSION

Bias in the data cannot be excluded, as these were not epidemiologic data and the documentation was found to be incomplete. The likelihood of a fatal complication seems to be the same with both tracheotomy techniques as far as can be determined from the available evidence. Tracheotomy-related deaths can be avoided in several ways: by thorough training under the leadership of experienced physicians, by the use of the World Health Organization's Surgical Safety Checklist regardless of where the tracheotomy is performed, and by the continuous vigilance of nursing staff.

A New Technique for Percutaneous Tracheotomy

The objective of this study was to investigate a new technique for tracheal puncture during percutaneous dilatational tracheotomy (PDT). A new invention, known as SafeTrach, was used: this instrument allows exact localization of the puncture site with built-in protection of the posterior tracheal wall. Surgery was performed on 17 patients with this technique, and our experience is described in this report. The results showed that this new technique minimizes known risk factors compared with existing PDT techniques, including patients with disadvantageous anatomy.

Long-Term Outcome Following Tracheostomy in Critical Care: A Systematic Review

OBJECTIVES

The prevalence and impact of longer-term outcomes following percutaneous tracheostomy, particularly tracheal stenosis, are unclear. Previous meta-analyses addressing this problem have been confounded by the low prevalence of tracheal stenosis and a limited number of studies.

DESIGN

Embase, PubMed-Medline, and the Cochrane Central Register of Clinical Trials were searched to identify all prospective studies of tracheostomy insertion in the critically ill. To reflect contemporary practice, the search was limited to studies published from 2000 onward. We scrutinized the bibliographies of returned studies for additional articles. Meta-analyses were undertaken to estimate the pooled risk difference of tracheal stenosis, bleeding, and wound infection comparing different techniques.

MEASUREMENTS AND MAIN RESULTS

We identified a total of 463 studies, 29 (5,473 patients) of which met the inclusion criteria. Nine were randomized controlled trials, six were nonrandomized comparative studies, and 14 were single-arm cohort studies. Risk of wound infection was greater for the surgical tracheostomy than for the Ciaglia multiple dilator technique, pooled risk difference 0.12 (95% CI, 0.02-0.23). We did not identify significant risk differences in other meta-analyses. Pooling across all studies according to the random-effects proportion meta-analysis suggests a higher prevalence of tracheal stenosis, wound infection, and major bleeding for surgical tracheostomies.

CONCLUSIONS

Considering comparative data, there was no significant difference in the prevalence of tracheal stenosis or major bleeding between percutaneous and surgical tracheostomy. In relation to wound infection, we have found a reduction associated with the original Ciaglia technique when compared with that with the surgical tracheostomy. Considering all published data reporting long-term outcomes pooled proportion meta-analysis indicates a trend toward a higher rate of tracheal stenosis and an increased risk of major bleeding and wound infection for surgical tracheostomies. This finding may be biased as a result of targeted patient selection, and further, high-quality long-term comparative data are needed to confirm these findings.

An anterior jugular vein variant in a patient requiring tracheostomy, demonstrating the importance of preoperative/procedural ultrasound

A 50-year-old woman was admitted to the intensive care unit (ICU) for a life-threatening exacerbation of asthma requiring intubation and ventilation for 7 days. On day 8, she was stepped down from the ventilator via the insertion of a tracheostomy to aid weaning. It was initially decided that a percutaneous tracheostomy would be attempted on ICU, however, following further consideration, it was decided that due to anatomical factors (short neck) a surgical tracheostomy would be performed by the ear, nose and throat (ENT) team. A periprocedural USS was not performed. At surgery, instead of identifying two superficial anterior jugular veins lying on each side of the trachea, one large anterior jugular vein (median vein) was found overlying the entire anterior surface of the trachea. Had a PCT been attempted without an ultrasound scan being performed, this vessel would have been punctured, creating a significant bleed that could have placed the patient's airway and/or circulatory system at risk.

Quick Response Tracheotomy: A Novel Surgical Procedure

Quick response tracheostomy (QRT) is a novel open surgical technique to emergently establish an airway. The method is simple; the skills necessary to perform this procedure are rapidly acquired; and it is expedient, minimally traumatic, and remarkably devoid of complications often encountered with percutaneous dilatational tracheotomies, including those complications seen with cricothyroidotomies. Unlike all other tracheotomies in which considerable blunt dissection is required, QRT avoids tissue crushing because sharp dissection alone is used to acquire surgical access to the trachea. The QRT does not entail inserting a guidewire into the trachea, a standard feature for percutaneous tracheal access; it avoids any risk of unintended laceration of the posterior tracheal wall and proximal subjacent esophagus. The technique averts tracheal ring fracture and tracheoesophageal fistula complications. The QRT has a uniquely low incidence of inducing hemorrhage, and it requires no steps that cause temporary tracheal occlusion and will therefore not facilitate hypoxia. The QRT contributes minimally to conditions favorable for generating subglottic stenosis, and the procedure is swiftly executed with very low probability for external tracheal placement of the tracheostomy tube. The QRT is not a blind procedure. No special instruments are required for its execution nor is concurrent tracheoscopy required at any stage while performing a QRT as is specified for percutaneous tracheotomies.

Case of difficult tracheostomy tube insertion: A novel yet simple solution to the dilemma

Difficulties arising during tracheostomy tube insertion can be rapidly fatal if the airway is not adequately controlled. We report a case of difficult tracheostomy in a gentleman with severe subcutaneous emphysema following a previously failed tracheostomy attempt. Tracheostomy tube insertion through the pre-existing stoma failed repeatedly due to rapidly increasing distance of trachea from the skin and unexpected false passages; however, the trachea was eventually cannulated using a regular endotracheal tube.

Tracheal stenosis following percutaneous dilatational tracheostomy using the single tapered dilator: an MRI study

Despite widespread adoption of percutaneous dilatational tracheostomy within the critical care setting, there is still uncertainty regarding long-term complications, particularly in relation to missed or subclinical tracheal stenosis. In this study, all patients underwent tracheostomy using a single tapered dilator ≥ three months prior to enrollment and were evaluated using magnetic resonance imaging, spirometry and questionnaire. Tracheal area was recorded and deemed to be stenotic if a reduction of ≥10% was found. Fifty patients underwent magnetic resonance imaging and 49 attended for interview. Five patients were diagnosed with tracheal stenosis-none were symptomatic. Six of the 50 tracheostomies were technically difficult. Spirometry was not predictive of stenosis. A post critical care exercise tolerance of less than 100 metres was found in four tracheal stenosis patients. The prevalence of subclinical tracheal stenosis following percutaneous tracheostomy is low, with limited clinical significance. No patients required corrective surgery for tracheal stenosis. Routine airway follow-up in asymptomatic patients appears to be unwarranted.

Tracheostomy on the Intensive Care Unit – A Two-Month Network-Wide Snapshot

Tracheostomy is a common and invasive procedure performed on the intensive care unit and has significant associated complications. Current evidence is insufficient to clearly guide practice. We conducted a two-month prospective service evaluation of tracheostomy within our local critical care network. We found 80 tracheostomies were performed during this time. Tracheostomy was performed at a median of six days after commencement of invasive ventilation, most commonly using the Ciaglia technique. Eighteen tracheostomies (23%) were performed surgically. The facilitation of weaning from invasive ventilation was the most common indication for tracheostomy. The median (IQR) time from tracheostomy to completion of weaning from mechanical ventilation was seven (4–11) days and from tracheostomy to decannulation was 14 (9–26) days. Eleven patients (14%) sustained complications possibly relating to tracheostomy insertion, three of whom subsequently died, although tracheostomy insertion was only possibly linked to one of these deaths. While our sample is small, it benchmarks a UK critical care network's tracheostomy practice in the UK.

Single dilator vs. guide wire dilating forceps tracheostomy: a meta-analysis of randomised trials

BACKGROUND

Single dilator technique (SDT) and guide wire dilating forceps (GWDF) are the two most commonly used techniques of percutaneous dilatational tracheostomy (PDT) in critically ill adult patients. We performed a meta-analysis of randomised, controlled trials comparing intraoperative, mid-term and late complications of these two techniques.

METHODS

Pertinent studies were searched in BioMedCentral, PubMed, Embase and the Cochrane Central Register of clinical trials. We selected all randomised studies comparing SDT and GWDF techniques in adult critically ill patients published in a peer-reviewed journal.

RESULTS

Among 1040 retrieved studies, five eligible studies randomising 363 patients (181 to GWDF, 182 to SDT) were identified. The incidence of the composite outcome difficult cannula insertion/difficult dilation or failure was higher with the GWDF technique (15.5% vs. 4.9 %, P = 0.02). Moreover, intraprocedural bleeding was more common in the GWDF group (19.3% vs. 7.6% in SDT group, P = 0.018). A trend towards an increased incidence of fracture of tracheal rings was noted in the SDT group (6.5% vs. 0.5% in the GWDF group, P = 0.13). No difference in mid-term or long-term complications was observed.

CONCLUSION

GWDF technique is associated with a higher incidence of intraprocedural bleeding and of technical difficulties in completing the procedure (difficult cannula insertions/difficult dilations or failures) compared with the SDT technique. No differences were identified in mid-term and long-term complications. Further studies comparing SDT and GWDF in the general population and in subgroups of high-risk patients (like obese or hypoxaemic patients) are warranted.

Tracheostomy in stroke patients

OPINION STATEMENT

Patients with severe ischemic and hemorrhagic stroke may require tracheostomy in the course of their disease. This may apply to stroke unit patients whose deficits include a severe dysphagia posing such risk of aspiration as it cannot be sufficiently counteracted by tube feeding and swallowing therapy alone. More often, however, tracheostomy is performed in stroke patients so severely afflicted that they require intensive care unit treatment and mechanical ventilation. In these, long-term ventilation and prolonged insufficient airway protection are the main indications for tracheostomy. Accepted advantages are less pharyngeal and laryngeal lesions than with prolonged orotracheal intubation, better oral hygiene and nursing care, and higher patient comfort. Optimal timing of tracheostomy is unclear, in general, as in stroke intensive care unit patients. Potential benefits of early tracheostomy concerning ventilation duration and length of stay, respirator weaning, airway safety, rate of pneumonia, and other complications, outcome and mortality have been suggested in studies on non-neurologic subgroups of critical care patients. Stroke patients have hardly been investigated with regard to these aspects, and mainly retrospectively. A single randomized pilot trial on early tracheostomy in 60 ventilated patients with severe hemorrhagic and ischemic stroke demonstrated feasibility, safety, and less need of sedation. Regarding the technique, bedside percutaneous dilational tracheostomy should be preferred over surgical tracheostomy because of several reported advantages. As the procedural risk is low and early tracheostomy does not seem to worsen the clinical course of the ventilated stroke patient, it is reasonable to assess the need of further ventilation at the end of the first week of intensive care and proceed to tracheostomy if extubation is not feasible. Reliable prediction of prolonged ventilation need and outcome benefits of early tracheostomy, however, await further clarification. Decannulation of stroke patients after discontinued ventilation has to follow reliable confirmation of swallowing ability, as by endoscopy.

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

Introduction

Since the introduction and widespread acceptance of percutaneous techniques in the intensive care unit (ICU) setting, the number of critically ill patients undergoing tracheostomy has steadily increased. However, this procedure can be associated with major complications, including death. The purpose of this study is to estimate the incidence and analyze the causes of lethal complications due to percutaneous dilatational tracheostomy (PDT).

Methods

We analyzed cases of lethal outcome due to complications from PDT including cases published between 1985 and April 2013. A systematic literature search was performed and unpublished cases from our own departmental records were retrospectively analyzed.

Results

A total of 71 cases of lethal outcome following PDT were identified including 68 published cases and 3 of our own patients. The incidence of lethal complications was calculated to be 0.17%. Of the fatal complications, 31.0% occurred during the procedure and 49.3% within seven days of the procedure. The main causes of death were: hemorrhage (38.0%), airway complications (29.6%), tracheal perforation (15.5%), and pneumothorax (5.6%). We found specific risk factors for complications in 73.2% of patients, 25.4% of patients had more than one risk factor. Bronchoscopic guidance was used in only 46.5% of cases.

Conclusions

According to this analysis, PDT-related death occurs in 1 out of 600 patients receiving a PDT. Careful patient selection, bronchoscopic guidance, and securing the tracheal cannula with sutures are likely to reduce complication rates.

Percutaneous dilatational tracheostomies in a newly established trauma center: a report from Qatar

BACKGROUND

Percutaneous dilatational tracheostomy (PDT) is a routine surgical procedure for critically ill patients who require prolonged ventilatory support.

METHODS

We conducted a retrospective cohort study of all PDTs performed at the adult Trauma Intensive Care Unit (TICU) of Hamad Medical Corporation in Doha, Qatar, from January 2009 through September 2012. For all adult patients, we analyzed the demographic characteristics, mean ventilator time before the procedure, injury severity score (ISS), complications, and outcomes.

RESULTS

Of the 1,442 trauma patients admitted to the adult TICU during our study period, 124 (8.5 %) underwent PDT using the Ciaglia Blue Rhino technique. The vast majority were male (94.3 %). The mean age was 35 ± 15.6 years; mean ventilator time before the procedure, 12 ± 3 days; and mean ISS, 24.2 ± 9.3. More than half of patients had head injury (56 %), followed by chest and abdomen (26 %) and cervical spine injuries (18 %). Early complications included difficult tube placement (0.8 %), hypoxemia (0.8 %), minor bleeding (1.6 %), and hypotension (0.8 %), but the vast majority (93 %) of patients had no complications. The procedure-related mortality rate was 0 %.

CONCLUSION

PDT is safe and can be performed with minimal complications even in a newly established trauma center.

Percutaneous tracheostomy: a new approach to the emergency airway

BACKGROUND

Endotracheal intubation is the preferred method of airway control. Current surgical standard of care for the emergent airway when endotracheal intubation cannot be performed is cricothyroidotomy. Percutaneous tracheostomy (PT) is a widely accepted technique for elective long-term airway management in the critical care setting. We describe our experience with successful placement of PT for emergency airway control.

METHODS

After institutional review board approval was obtained, patients were identified retrospectively from January 2003 to present that had emergency PT performed as identified by the DRG International Classification of Diseases--9th Rev. procedure code (31.1). Data included demographics, body mass index, admitting service, size of tracheostomy tube, reason for urgent airway access, duration PT was required, unit, time and hospital day performed, and complications.

RESULTS

Eighteen patients underwent emergency PT; 61% were male, and age range was 21 years to 86 years. Indications for PT included respiratory failure associated with anaphylaxis, supraglottic edema, cardiac arrest, and blood or edema blocking the airway preventing intubation. PT was performed in various departments throughout the hospital. Admitting services included critical care intensivist (44.4%), trauma surgery (27.7%), cardiology (11.1%), medicine (11.1%), and neurology (5.5%). Most of the tracheostomy tube sizes were no. 8 (61.1%), followed by no. 7 (22.2%), no. 6 (5.5%), and no. 9 (5.5%). All PTs were successfully placed, and there were no complications. Ten of our patients had no airway in place at the time of procedure. Six patients had emergency esophageal-tracheal airways in place. Two patients had a cricothyroidotomy that was not functioning adequately. Nine patients had body mass indexes ranging from 30 kg/m² to 112 kg/m².

CONCLUSION

PT provided a safe, effective emergency airway in adult patients who presented with a variety of indications, in varying locations throughout the hospital. PT performed by appropriately trained personnel may be a potential adjunct for emergent airway control in diverse settings.

[Update on tracheotomy]

Tracheotomy in mechanically ventilated critically ill patients is a procedure commonly performed in the intensive care unit. The aim is to facilitate respiratory weaning and improve clinical outcome by reducing side effects of prolonged invasive mechanical ventilation and sedation. At the same time, the risk of tracheotomy associated complications must be minimized. Indications, method and timing must be individualized for each patient. Main determinants for decision-making, success and safety are the expected individual clinical benefits, the patient risk factors for complications and aspects of local experience and logistics. This review summarizes current concepts and evidence.

Safety, efficiency, and cost-effectiveness of a multidisciplinary percutaneous tracheostomy program

OBJECTIVE

The frequency of bedside percutaneous tracheostomies is increasing in intensive care medicine, and both safety and efficiency of care are critical elements in continuing success of this procedure. Prioritizing patient safety, a tracheostomy team was created at our institution to provide bedside expertise in surgery, anesthesiology, respiratory, and technical support. This study was performed to evaluate the metrics of patient outcome, efficiency of care, and cost-benefit analysis of the multidisciplinary Johns Hopkins Percutaneous Tracheostomy Program.

DESIGN

A review was performed for patients who received tracheostomies in 2004, the year before the Johns Hopkins Percutaneous Tracheostomy Program was established, and those who received tracheostomies in 2008, the year following the program's establishment. Comparative outcomes were evaluated, including the efficiency of procedure and intensive care unit length of stay, complication rate including bleeding, hypoxia, loss of airway, and a financial cost-benefit analysis.

SETTING

Single-center, major university hospital.

PATIENTS

The sample consisted of 363 patients who received a tracheostomy in the years 2004 and 2008.

MEASUREMENTS AND MAIN RESULTS

The number of percutaneous procedures increased from 59 of 126 tracheostomy patients in 2004, to 183 of 237 in 2008. There were significant decreases in the prevalence of procedural complications, particularly in the realm of airway injuries and physiologic disturbances. Regarding efficiency, the structured program reduced the time to tracheostomy and overall procedural time. The intensive care unit length of stay in nonpulmonary patients and improvement in intensive care unit and operating room back-fill efficiency contributed to an overall institutional financial benefit.

CONCLUSIONS

An institutionally subsidized, multi-disciplinary percutaneous tracheostomy program can improve the quality of care in a cost-effective manner by decreasing the incidence of tracheostomy complications and improving both the time to tracheostomy, duration of procedure, and postprocedural intensive care unit stay.

Percutaneous dilatational tracheostomy

For decades, the standard technique for tracheostomy was the open, surgical technique. However, during the past 20 years, the use of percutaneous dilatational tracheostomy has been increased and shown to be a feasible and safe procedure in critically ill patients. The purpose of this report is to review the percutaneous dilatational tracheostomy technique, describe the role of bronchoscopy as guidance for the procedure, and identify the available evidences comparing percutaneous dilatational tracheostomy to surgical tracheostomy.

Percutaneous tracheostomy, a systematic review

BACKGROUND

Percutaneous dilatational tracheostomy (PDT) is a common procedure in intensive care units and the identification of the best technique is very important. We performed a systematic review and meta-analysis of randomized studies comparing different PDT techniques in critically ill adult patients to investigate if one technique is superior to the others with regard to major and minor intraprocedural complications.

METHODS

BioMedCentral and other database of clinical trials were searched for pertinent studies. Inclusion criterion was random allocation to at least two PDT techniques. Exclusion criteria were duplicate publications, nonadult studies, and absence of outcome data.

STUDY DESIGN

Population, clinical setting, and complications were extracted.

RESULTS

Data from 1130 patients in 13 randomized trials were analyzed. Multiple dilators, single-step dilatation, guide wire dilating forceps, rotational dilation, retrograde tracheostomy, and balloon dilation techniques were always performed in the intensive care unit. The different techniques and devices appeared largely equivalent, with the exception of retrograde tracheostomy, which was associated with more severe complications and more frequent need of conversion to other techniques when compared with guide wire dilating forceps and single-step dilatation techniques. Single-step dilatation technique was associated with fewer failures than rotational dilation, and fewer mild complications in comparison with balloon dilation and guide wire dilating forceps (all P < 0.05).

CONCLUSIONS

Among the six analyzed techniques, single-step dilatation technique appeared the most reliable in terms of safety and success rate. However, the number of available randomized trials was insufficient to confidently assess the best PDT technique.

Airway challenges in critical care

Airway management in the intensive care unit is more problematic than during anaesthesia. In general, critically ill patients have less physiological reserve and complications are more common, both during the initial airway intervention (which includes risks associated with induction of anaesthesia), and later once the airway has been secured. Despite these known risks, those managing the airway of a critically ill patient, particularly out of hours, may be relatively inexperienced. Solutions to these challenging airway problems include: recognition of those patients with a potential airway problem; implementation of a plan to deal with their airway; immediate availability of a difficult airway trolley; use of capnography for every airway intervention and continuously in all ventilator-dependent patients; and appropriate training of all intensive care unit staff including use of simulation.

Late life-threatening hemorrhage after percutaneous tracheostomy

Purpose. Formation of a tracheoinnominate artery fistula (TIF) and consecutive hemorrhage is a rare and life-threatening complication with high mortality. Warning symptoms can be absent. The current literature contains only few considerations for misleading signs, especially in cases where the contact between the tissue and the cannula is tight. Method and Results. We report two cases of life-threatening hemorrhages that appeared six days and two months after percutaneous dilatational tracheostomy (PDT) in two patients, respectively. In these cases, diagnosis of tracheoinnominate artery fistula (TIF) was difficult. Tracheal ring fracture after PDT and pressure ulceration caused by cannula were implicated in TIF formation. The cannula was overblocked to buy time before surgical closure. Both patients survived without any additional neurological deficiency. Conclusion. Massive hemorrhage in patients after tracheostomy is likely due to TIF. Ultrasound scanning before PDT and careful periodical followup of the trachea are required.