Impact of Early Tracheostomy on Outcomes After Cardiac Surgery: A National Analysis

Optimum Timing of Tracheostomy After Cardiac Operation: Descriptive Claims Database Study

Background

Suitable tracheostomy timing after cardiac operation remains controversial; hence, this study compared the effectiveness of early and late tracheostomy after cardiac operation.

Methods

By using the nationwide administrative claims database in Japan, patients who underwent cardiac operation between April 2010 and March 2020 were identified and included in this study. In-hospital mortality, incidence of deep sternal wound infection, and ventilator-free days were analyzed and compared by dividing patients into 2 groups: an early group (patients who underwent tracheostomy 1-14 days postoperatively) and a late group (patients who underwent tracheostomy 15-30 days postoperatively). Baseline characteristics were adjusted by propensity score weighting.

Results

Of 1240 patients who underwent cardiac operation and postoperative tracheostomy, 784 were included in the main analysis cohort. As the number of days between the operation and tracheostomy increased, in-hospital mortality increased, whereas ventilator-free days decreased. The early and late groups comprised 284 and 326 patients, respectively. After adjustment of baseline characteristics, the in-hospital mortality (odds ratio, 0.65; 95% CI, 0.46-0.91; P = .01) was lower in the early group than in the late group, the incidence of deep sternal wound infection (odds ratio, 0.59; 95% CI, 0.23-1.52; P = .27) was not significantly different between the 2 groups, and the early group had more ventilator-free days compared with the late group (mean difference, 5.1; 95% CI, 3.6-6.5; P < .001).

Conclusions

Early tracheostomy may be considered in patients expected to require prolonged ventilation.

Tracheostomy is associated with decreased vasoactive-inotropic score in postoperative cardiac surgery patients on prolonged mechanical ventilation

Objective

We sought to quantify the influence that tracheostomy placement has on the hemodynamic stability of postoperative cardiac surgery patients with persistent ventilatory requirements.

Methods

A retrospective, single-center, and observational analysis of postoperative cardiac surgery patients with prolonged mechanical ventilation who underwent tracheostomy placement from 2018 to 2022 was conducted. Patients were excluded if receiving mechanical circulatory support or if they had an unrelated significant complication 3 days surrounding tracheostomy placement. Vasoactive and inotropic requirements were quantified using the Vasoactive-Inotrope Score.

Results

Sixty-one patients were identified, of whom 58 met inclusion criteria. The median vasoactive-inotrope score over the 3 days before tracheostomy compared with 3 days after decreased from 3.35 days (interquartile range, 0-8.79) to 0 days (interquartile range, 0-7.79 days) (P = .027). Graphic representation of this trend demonstrates a clear inflection point at the time of tracheostomy. Also, after tracheostomy placement, fewer patients were on vasoactive/inotropic infusions (67.2% [n = 39] pre vs 24.1% [n = 14] post; P < .001) and sedative infusions (62.1% [n = 36] pre vs 27.6% [n = 16] post; P < .001). The percent of patients on active mechanical ventilation did not differ.

Conclusions

The median vasoactive-inotrope score in cardiac surgery patients with prolonged mechanical ventilation was significantly reduced after tracheostomy placement. There was also a significant reduction in the number of patients on vasoactive/inotropic and sedative infusions 3 days after tracheostomy. These data suggest that tracheostomy has a positive effect on the hemodynamic stability of patients after cardiac surgery and should be considered to facilitate postoperative recovery.

Linking preoperative and early intensive care unit data for prolonged intubation prediction

Objectives

Prolonged intubation (PI) is a frequently encountered severe complication among patients following cardiac surgery (CS). Solely concentrating on preoperative data, devoid of sufficient consideration for the ongoing impact of surgical, anesthetic, and cardiopulmonary bypass procedures on subsequent respiratory system function, could potentially compromise the predictive accuracy of disease prognosis. In response to this challenge, we formulated and externally validated an intelligible prediction model tailored for CS patients, leveraging both preoperative information and early intensive care unit (ICU) data to facilitate early prophylaxis for PI.

Methods

We conducted a retrospective cohort study, analyzing adult patients who underwent CS and utilizing data from two publicly available ICU databases, namely, the Medical Information Mart for Intensive Care and the eICU Collaborative Research Database. PI was defined as necessitating intubation for over 24 h. The predictive model was constructed using multivariable logistic regression. External validation of the model's predictive performance was conducted, and the findings were elucidated through visualization techniques.

Results

The incidence rates of PI in the training, testing, and external validation cohorts were 11.8%, 12.1%, and 17.5%, respectively. We identified 11 predictive factors associated with PI following CS: plateau pressure [odds ratio (OR), 1.133; 95% confidence interval (CI), 1.111-1.157], lactate level (OR, 1.131; 95% CI, 1.067-1.2), Charlson Comorbidity Index (OR, 1.166; 95% CI, 1.115-1.219), Sequential Organ Failure Assessment score (OR, 1.096; 95% CI, 1.061-1.132), central venous pressure (OR, 1.052; 95% CI, 1.033-1.073), anion gap (OR, 1.075; 95% CI, 1.043-1.107), positive end-expiratory pressure (OR, 1.087; 95% CI, 1.047-1.129), vasopressor usage (OR, 1.521; 95% CI, 1.23-1.879), Visual Analog Scale score (OR, 0.928; 95% CI, 0.893-0.964), pH value (OR, 0.757; 95% CI, 0.629-0.913), and blood urea nitrogen level (OR, 1.011; 95% CI, 1.003-1.02). The model exhibited an area under the receiver operating characteristic curve (AUROC) of 0.853 (95% CI, 0.840-0.865) in the training cohort, 0.867 (95% CI, 0.853-0.882) in the testing cohort, and 0.704 (95% CI, 0.679-0.727) in the external validation cohort.

Conclusions

Through multicenter internal and external validation, our model, which integrates early ICU data and preoperative information, exhibited outstanding discriminative capability. This integration allows for the accurate assessment of PI risk in the initial phases following CS, facilitating timely interventions to mitigate adverse outcomes.

Percutaneous Dilatational Tracheostomy in a Cardiac Surgical Intensive Care Unit: A Single-Center Experience

Background

A significant proportion of cardiac surgery intensive care unit (CSICU) patients require long-term ventilation, necessitating tracheostomy placement. The goal of this study was to evaluate the long-term postoperative outcomes and complications associated with percutaneous dilatational tracheostomy (PDT) in CSICU patients.

Methods

All patients undergoing PDT after cardiac, thoracic, or vascular operations in the CSICU between January 1, 2013 and January 1, 2021 were identified. They were evaluated for mortality, decannulation time, and complications including bleeding, infection, and need for surgical intervention. Multivariable regression models were used to identify predictors of early decannulation and the complication rate.

Results

Ninety-three patients were identified for this study (70 [75.3%] male and 23 [24.7%] female). Furthermore, 18.3% of patients had chronic obstructive pulmonary disease (COPD), 21.5% had history of stroke, 7.5% had end-stage renal disease, 33.3% had diabetes, and 59.1% were current smokers. The mean time from PDT to decannulation was 39 days. Roughly one-fifth (20.4%) of patients were on dual antiplatelet therapy and 81.7% had anticoagulation restarted 8 hours post-tracheostomy. Eight complications were noted, including 5 instances of bleeding requiring packing and 1 case of mediastinitis. There were no significant predictors of decannulation prior to discharge. Only COPD was identified as a negative predictor of decannulation at any point in time (hazard ratio, 0.28; 95% confidence interval, 0.08-0.95; p=0.04).

Conclusion

Percutaneous tracheostomy is a safe and viable alternative to surgical tracheostomy in cardiac surgery ICU patients. Patients who undergo PDT have a relatively short duration of tracheostomy and do not have major post-procedural complications.

Early tracheostomy after cardiac surgery improves intermediate- and long-term survival

OBJECTIVE

Complicated post-cardiac surgery course, can lead to both prolonged ICU stay and ventilation, and may require a tracheostomy. This study represents the single-center experience with post-cardiac surgery tracheostomy. The aim of this study was to assess the timing of tracheostomy as a risk factor for early, intermediate, and late mortality. The study's second aim was to assess the incidence of both superficial and deep sternal wound infections.

DESIGN

Retrospective study of prospectively collected data.

SETTING

Tertiary hospital.

PATIENTS

Patients were divided into 3 groups, according to the timing of tracheostomy; early (4-10 days); intermediate (11-20 days) and late (≥21 days).

INTERVENTIONS

None.

MAIN VARIABLES OF INTEREST

The primary outcomes were early, intermediate, and long-term mortality. The secondary outcome was the incidence of sternal wound infection.

RESULTS

During the 17-year study period, 12,782 patients underwent cardiac surgery, of whom 407 (3.18%) required postoperative tracheostomy. 147 (36.1%) had early, 195 (47.9%) intermediate, and 65 (16%) had a late tracheostomy. Early, 30-day, and in-hospital mortality was similar for all groups. However, patients, who underwent early- and intermediate tracheostomy, demonstrated statistically significant lower mortality after 1- and 5-year (42.8%; 57.4%; 64.6%; and 55.8%; 68.7%; 75.4%, respectively; P < .001). Cox model demonstrated age [1.025 (1.014-1.036)] and timing of tracheostomy [0.315 (0.159-0.757)] had significant impacts on mortality.

CONCLUSIONS

This study demonstrates a relationship between the timing of tracheostomy after cardiac surgery and mortality: early tracheostomy (within 4-10 days of mechanical ventilation) is associated with better intermediate- and long-term survival.

Nomogram and Risk Calculator for Postoperative Tracheostomy after Heart Valve Surgery

Postoperative tracheostomy (POT) is an important indicator of critical illness, associated with poorer prognoses and increased medical burdens. However, studies on POTs after heart valve surgery (HVS) have not been reported. The objectives of this study were first to identify the risk factors and develop a risk prediction model for POTs after HVS, and second to clarify the relationship between POTs and clinical outcomes. Consecutive adults undergoing HVS from January 2016 to December 2019 in a single cardiovascular center were enrolled, and a POT was performed in 1.8% of the included patients (68/3853). Compared to patients without POTs, the patients with POTs had higher rates of readmission to the ICU and in-hospital mortality, as well as longer ICU and hospital stays. Five factors were identified to be significantly associated with POTs after HVS by our multivariate analysis, including age, diabetes mellitus, pulmonary edema, intraoperative transfusion of red blood cells, and surgical types. A nomogram and a risk calculator were constructed based on the five factors, showing excellent discrimination, calibration, and clinical utility. Three risk intervals were defined as low-, medium-, and high-risk groups according to the nomogram and clinical practice. The findings of this study may be helpful for early risk assessment and perioperative management.

Difficult Respiratory Weaning after Cardiac Surgery: A Narrative Review

Respiratory weaning after cardiac surgery can be difficult or prolonged in up to 22.7% of patients. The inability to wean from a ventilator within the first 48 h after surgery is related to increased short- and long-term morbidity and mortality. Risk factors are mainly non-modifiable and include preoperative renal failure, New York Heart Association, and Canadian Cardiac Society classes as well as surgery and cardio-pulmonary bypass time. The positive effects of pressure ventilation on the cardiovascular system progressively fade during the progression of weaning, possibly leading to pulmonary oedema and failure of spontaneous breathing trials. To prevent this scenario, some parameters such as pulmonary artery occlusion pressure, echography-assessed diastolic function, brain-derived natriuretic peptide, and extravascular lung water can be monitored during weaning to early detect hemodynamic decompensation. Tracheostomy is considered for patients with difficult and prolonged weaning. In such cases, optimal patient selection, timing, and technique may be important to try to reduce morbidity and mortality in this high-risk population.

Impact of Tracheostomy Timing on Outcomes After Cardiovascular Surgery

OBJECTIVES

This study aimed to investigate whether tracheostomy timing in patients undergoing cardiac surgery had an impact on outcomes.

DESIGN

Retrospective, observational study.

SETTING

Single-center university hospital.

PARTICIPANTS

Patients requiring tracheostomy among a total of 961 patients who underwent cardiovascular surgery via a median sternotomy from January 2014 to March 2021.

INTERVENTIONS

Early versus late tracheostomy.

MEASUREMENTS AND MAIN RESULTS

During the study period, tracheostomy was performed in 28 patients (2.9%). According to tracheostomy timing, postoperative day seven was chosen as the cutoff to define early (≤seven days) and late (>seven days) tracheostomy. Patients in the early-tracheostomy group had a significantly shorter ventilation time after tracheostomy compared with the late-tracheostomy group (p = 0.039), and early tracheostomy resulted in a reduction in total ventilation time (p = 0.001). The incidence of pressure ulcers was significantly lower in the early-tracheostomy group compared with the late- tracheostomy group. There was a higher tracheal tube removal rate in the early-tracheostomy group compared with the late-tracheostomy group (p = 0.0007). The one-year survival rate in the early- and late-tracheostomy groups was 65% and 31%, respectively. The long-term mortality rate was significantly lower in the early-tracheostomy group compared with the late- tracheostomy group (p = 0.04).

CONCLUSIONS

Early tracheostomy (<seven days) may provide better clinical outcomes, with lower mortality and morbidity rates, when patients are judged to require at least seven days of ventilation after cardiovascular surgery.

Pediatric Tracheostomy-Related Complications: A Cross-sectional Analysis

OBJECTIVE

To determine the rate of tracheostomy-related complications in pediatric patients from nationally representative databases.

STUDY DESIGN

Cross-sectional analysis.

SETTING

2016 Kids' Inpatient Database and 2016 Nationwide Readmission Database.

METHODS

All pediatric tracheostomy procedures were included. Complication type, admission outcomes, and readmission rates were recorded with a logistic regression analysis to determine patient characteristics associated with complications.

RESULTS

An estimated 5309 tracheostomies were performed among pediatric patients in 2016, 8% (n = 432) of whom developed tracheostomy-related complications. This group was younger (4.7 vs 8.7 years, P < .001) and required longer hospital admissions (68.7 vs 33.2 days, P < .001) than children without tracheostomy-related complications. Mean costs ($459,324 vs $397,937, P < .001) and mean total charges ($1,573,964 vs $1,099,347, P < .001) were increased if a tracheostomy-related complication occurred. These events occurred more often in those with bronchopulmonary dysplasia (24% vs 12%, P < .001), heart disease (24% vs 12%, P = .001), gastroesophageal reflux disease (31% vs 19%, P < .001), short gestational age (24% vs 14%, P < .001), and subglottic stenosis (9.9% vs 5.4%, P = .001). The estimated 30-day readmission rate was 24% (SE, 1.7%) but did not increase after tracheostomy complications (27% vs 15%, P = .04). Tracheostomy-related complications were predicted by gastroesophageal reflux disease (odds ratio [OR], 1.50; 95% CI, 1.14-1.97; P = .004), younger age (OR, 1.12; 95% CI, 1.04-1.22; P = .002), and lengthier hospitalization (OR, 1.00; 95% CI, 1.00-1.01; P < .001) on multiple logistic regression analysis.

CONCLUSION

Tracheostomy-related complications occur in approximately 8% of pediatric patients and are higher in younger children or those with longer admission lengths. These data have implications for benchmarking standards of posttracheostomy complications across institutions.