Publications

2012

Nishisaki, Akira, Susan Ferry, Shawn Colborn, Cheryl DeFalco, Troy Dominguez, Calvin A Brown, Mark A Helfaer, et al. (2012) 2012. “Characterization of Tracheal Intubation Process of Care and Safety Outcomes in a Tertiary Pediatric Intensive Care Unit.”. Pediatric Critical Care Medicine : A Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies 13 (1): e5-10. https://doi.org/10.1097/PCC.0b013e3181fe472d.

OBJECTIVE: To characterize tracheal intubation process of care and safety outcomes in a large tertiary pediatric intensive care unit using a pediatric adaptation of the National Emergency Airway Registry. Variances in process of care and safety outcome of intubation in the pediatric intensive care unit have not been described. We hypothesize that tracheal intubation is a common but high-risk procedure and that the novel pediatric adaptation of the National Emergency Airway Registry is a feasible tool to capture variances in process of care and outcomes.

DESIGN: Prospective descriptive study.

SETTING: A single 45-bed tertiary noncardiac pediatric intensive care unit in a large university-affiliated children's hospital.

PATIENTS: Critically ill children who required intubation in the pediatric intensive care unit.

INTERVENTIONS: Airway management data were prospectively collected for all initial airway management from July 2007 through September 2008 using the National Emergency Airway Registry tool tailored for pediatric application with explicit operational definitions.

MEASUREMENT AND MAIN RESULTS: One hundred ninety-seven initial intubation encounters were reported (averaging one every 2.3 days). The first course intubation method was oral intubation in 181 (91.9%) and nasal in 16 (9.1%). Unwanted tracheal intubation-associated events were frequently reported (n = 38 [19.3%]), but severe tracheal intubation-associated events were rare (n = 6 [3.0%]). Esophageal intubation with immediate recognition was the most common tracheal intubation-associated event (n = 22). Desaturation <80% was reported in 51 of 183 (27.7%) and more than two intubation attempts in 30 of 196 (15.3%), both associated with occurrence of a tracheal intubation-associated event (p < .001, p = .001, respectively). Interestingly, patient age, history of difficult airway, and first attempt by resident were not associated with tracheal intubation-associated events.

CONCLUSIONS: Unwanted tracheal intubation-associated events occurred frequently, but severe tracheal intubation-associated events were rare. Our novel registry can be used to describe the pediatric intensive care unit tracheal intubation procedural process of care and safety outcomes.

Hasegawa, Kohei, Kazuaki Shigemitsu, Yusuke Hagiwara, Takuyo Chiba, Hiroko Watase, Calvin A Brown, David F M Brown, and Japanese Emergency Medicine Research Alliance Investigators. (2012) 2012. “Association Between Repeated Intubation Attempts and Adverse Events in Emergency Departments: An Analysis of a Multicenter Prospective Observational Study.”. Annals of Emergency Medicine 60 (6): 749-754.e2. https://doi.org/10.1016/j.annemergmed.2012.04.005.

STUDY OBJECTIVE: Although repeated intubation attempts are believed to contribute to patient morbidity, only limited data characterize the association between the number of emergency department (ED) laryngoscopic attempts and adverse events. We seek to determine whether multiple ED intubation attempts are associated with an increased risk of adverse events.

METHODS: We conducted an analysis of a multicenter prospective registry of 11 Japanese EDs between April 2010 and September 2011. All patients undergoing emergency intubation with direct laryngoscopy as the initial device were included. The primary exposure was multiple intubation attempts, defined as intubation efforts requiring greater than or equal to 3 laryngoscopies. The primary outcome measure was the occurrence of intubation-related adverse events in the ED, including cardiac arrest, dysrhythmia, hypotension, hypoxemia, unrecognized esophageal intubation, regurgitation, airway trauma, dental or lip trauma, and mainstem bronchus intubation.

RESULTS: Of 2,616 patients, 280 (11%) required greater than or equal to 3 intubation attempts. Compared with patients requiring 2 or fewer intubation attempts, patients undergoing multiple attempts exhibited a higher adverse event rate (35% versus 9%). After adjusting for age, sex, principal indication, method, medication, and operator characteristics, intubations requiring multiple attempts were associated with an increased odds of adverse events (odds ratio 4.5; 95% confidence interval 3.4 to 6.1).

CONCLUSION: In this large Japanese multicenter study of ED patients undergoing intubation, we found that multiple intubation attempts were independently associated with increased adverse events.

Nishisaki, Akira, Aaron J Donoghue, Shawn Colborn, Christine Watson, Andrew Meyer, Dana Niles, Ram Bishnoi, et al. (2012) 2012. “Development of an Instrument for a Primary Airway Provider’s Performance With an ICU Multidisciplinary Team in Pediatric Respiratory Failure Using Simulation.”. Respiratory Care 57 (7): 1121-8. https://doi.org/10.4187/respcare.01472.

OBJECTIVE: To develop a scoring system that can assess the multidisciplinary management of respiratory failure in a pediatric ICU.

METHODS: In a single tertiary pediatric ICU we conducted a simulation-based evaluation in a patient care area auxiliary to the ICU. The subjects were pediatric and emergency medicine residents, nurses, and respiratory therapists who work in the pediatric ICU. A multidisciplinary focus group with experienced providers in pediatric ICU airway management and patient safety specialists was formed. A task-based scoring instrument was developed to evaluate a primary airway provider's performance through Healthcare Failure Mode and Effect Analysis. Reliability and validity of the instrument were evaluated using multidisciplinary simulation-based airway management training sessions. Each session was evaluated by 3 independent expert raters. A global assessment of the team performance and the previous experience in training were used to evaluate the validity of the instrument.

RESULTS: The Just-in-Time Pediatric Airway Provider Performance Scale (JIT-PAPPS) version 3, with 34 task-based items (14 technical, 20 behavioral), was developed. Eighty-five teams led by resident airway providers were evaluated by 3 raters. The intraclass correlation coefficient for raters was 0.64. The JIT-PAPPS score correlated well with the global rating scale (r = 0.71, P < .001). Mean total scores across the teams were positively associated with resident previous training participation (β coefficient 7.1 ± 0.9, P < .001), suggesting good validity of the scale.

CONCLUSIONS: A task-based scoring instrument for a primary airway provider's performance with a multidisciplinary pediatric ICU team on simulated pediatric respiratory failure was developed. Reliability and validity evaluation supports the developed scale.

2011

Handel, Daniel A, Robert L Wears, Larry A Nathanson, and Jesse M Pines. (2011) 2011. “Using Information Technology to Improve the Quality and Safety of Emergency Care.”. Academic Emergency Medicine : Official Journal of the Society for Academic Emergency Medicine 18 (6): e45-51. https://doi.org/10.1111/j.1553-2712.2011.01070.x.

With the 2010 federal health care reform passage, a renewed focus has emerged for the integration of electronic health records (EHRs) into the U.S. health care system. A consensus conference in October 2009 met to discuss the future research agenda with regard to using information technology (IT) to improve the future quality and safety of emergency department (ED) care. The literature is mixed as to how the use of computerized provider order entry (CPOE), clinical decision support (CDS), EHRs, and patient tracking systems has improved or degraded the safety and quality of ED care. Such mixed findings must be considered in the national push for rapid implementation of health IT. We present a research agenda addressing the major questions that are posed by the introduction of IT into ED care; these questions relate to interoperability, patient flow and integration into clinical work, real-time decision support, handoffs, safety-critical computing, and the interaction between IT systems and clinical workflows.

Nishisaki, Akira, Nitin Marwaha, Vasantha Kasinathan, Peter Brust, Calvin A Brown, Robert A Berg, Ron M Walls, Nicholas Tsarouhas, and Vinay M Nadkarni. (2011) 2011. “Airway Management in Pediatric Patients at Referring Hospitals Compared to a Receiving Tertiary Pediatric ICU.”. Resuscitation 82 (4): 386-90. https://doi.org/10.1016/j.resuscitation.2010.11.024.

OBJECTIVE: To describe the current practice of pediatric airway management at referring hospitals and the associated adverse events compared to a receiving tertiary pediatric ICU.

METHOD: Retrospective chart and transport record review of all emergency critical care transports to our Pediatric ICU over 3 years. Data regarding tracheal intubation procedure, pre-defined adverse Tracheal Intubation Associated Events (TIAEs), and airway events before, during, and after the inter-hospital transport were collected using a standard National Emergency Airway Registry for children (NEAR4KIDS) definition. Tracheal intubation outcomes were compared to in-hospital P ICU intubations.

RESULTS: 253/1489 (17%) of critical care transports had airway management, all by tracheal intubation. The most common condition was seizure (34%), followed by pulmonary/lower airway disease (16%). 49 (19%) had TIAEs; the most common event was mainstem bronchial intubation (13%). Incidence of TIAEs was similar to PICU (p=0.69). Thirteen had an inappropriate tracheal tube position upon PICU arrival, but none experienced accidental extubation during transport. An uncuffed tracheal tube was used in 108/172 (63%) of patients<8 years, significantly higher than PICU (20%, p<0.0001). 124 (49%) were extubated within 24 h, 153 (60%) within 48 h. Two patients had the tracheal tube changed to cuffed from uncuffed due to air leak.

CONCLUSION: Provider reported adverse TIAEs are common during airway management in children requiring critical care transport, but not higher compared to PICU intubations. Most inter-hospital transport patients are intubated with an uncuffed tracheal tube. Subsequent tracheal tube change from uncuffed to cuffed tube is rarely required.

Walls, Ron M, Calvin A Brown, Aaron E Bair, Daniel J Pallin, and NEAR Investigators II. (2011) 2011. “Emergency Airway Management: A Multi-Center Report of 8937 Emergency Department Intubations.”. The Journal of Emergency Medicine 41 (4): 347-54. https://doi.org/10.1016/j.jemermed.2010.02.024.

OBJECTIVE: Emergency department (ED) intubation personnel and practices have changed dramatically in recent decades, but have been described only in single-center studies. We sought to better describe ED intubations by using a multi-center registry.

METHODS: We established a multi-center registry and initiated surveillance of a longitudinal, prospective convenience sample of intubations at 31 EDs. Clinicians filled out a data form after each intubation. Our main outcome measures were descriptive. We characterized indications, methods, medications, success rates, intubator characteristics, and associated event rates. We report proportions with 95% confidence intervals and chi-squared testing; p-values < 0.05 were considered significant.

RESULTS: There were 8937 encounters recorded from September 1997 to June 2002. The intubation was performed for medical emergencies in 5951 encounters (67%) and for trauma in 2337 (26%); 649 (7%) did not have a recorded mechanism or indication. Rapid sequence intubation was the initial method chosen in 6138 of 8937 intubations (69%) and in 84% of encounters that involved any intubation medication. The first method chosen was successful in 95%, and intubation was ultimately successful in 99%. Emergency physicians performed 87% of intubations and anesthesiologists 3%. Several other specialties comprised the remaining 10%. One or more associated events were reported in 779 (9%) encounters, with an average of 12 per 100 encounters. No medication errors were reported in 6138 rapid sequence intubations. Surgical airways were performed in 0.84% of all cases and 1.7% of trauma cases.

CONCLUSION: Emergency physicians perform the vast majority of ED intubations. ED intubation is performed more commonly for medical than traumatic indications. Rapid sequence intubation is the most common method of ED intubation.

Nishisaki, Akira, Joan Nguyen, Shawn Colborn, Christine Watson, Dana Niles, Roberta Hales, Sujatha Devale, et al. (2011) 2011. “Evaluation of Multidisciplinary Simulation Training on Clinical Performance and Team Behavior During Tracheal Intubation Procedures in a Pediatric Intensive Care Unit.”. Pediatric Critical Care Medicine : A Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies 12 (4): 406-14. https://doi.org/10.1097/PCC.0b013e3181f52b2f.

OBJECTIVE: Tracheal intubation in the pediatric intensive care unit is often performed in emergency situations with high risks. Simulation has been recognized as an effective methodology to train both technical and teamwork skills. Our objectives were to develop a feasible tool to evaluate team performance during tracheal intubation in the pediatric intensive care unit and to apply the tool in the clinical setting to determine whether multidisciplinary teams with a higher number of simulation-trained providers exhibit more proficient performance.

DESIGN: Prospective, observational pilot study.

SETTING: Single tertiary children's hospital pediatric intensive care unit.

SUBJECTS: Pediatric and emergency medicine residents, pediatric intensive care unit nurses, and respiratory therapists from October 2007 to June 2008.

INTERVENTIONS: A pediatric intensive care unit on-call resident, a pediatric intensive care unit nurse, and a respiratory therapist received simulation-based multidisciplinary airway management training every morning. An assessment tool for team technical and behavioral skills was developed. Independent trained observers rated actual intubations in the pediatric intensive care unit by using this tool.

MEASUREMENTS AND MAIN RESULTS: For observer training, two independent raters (research assistants 1 and 2) evaluated a total of 53 training sessions (research assistant 1, 16; research assistant 2, 37). The correlation coefficient with the facilitator expert (surrogate standard) was .73 for research assistant 1 and .88 for research assistant 2 (p ≤ .001 for both) in the total score, .84 for research assistant 1 and .77 for research assistant 2 (p < .001 for both) in the technical domain, and .63 for research assistant 1 (p = .009) and .84 for research assistant 2 (p < .001) in the behavioral domain. The correlation coefficient was lower in video-based observation (.62 vs. .88, on-site). For clinical observation, 15 intubations were observed in real time by raters. The performance by a team with two or more simulation-trained members was rated higher compared with the team with fewer than two trained members (total score: 127 ± 6 vs. 116 ± 9, p = .012, mean ± sd).

CONCLUSIONS: It is feasible to rate the technical and behavioral performance of multidisciplinary airway management teams during real intensive care unit intubation events by using our assessment tool. The presence of two or more multidisciplinary simulation-trained providers is associated with improved performance during real events.

2010

Leffler, Daniel A, Rakhi Kheraj, Sagar Garud, Naama Neeman, Larry A Nathanson, Ciaran P Kelly, Mandeep Sawhney, et al. (2010) 2010. “The Incidence and Cost of Unexpected Hospital Use After Scheduled Outpatient Endoscopy.”. Archives of Internal Medicine 170 (19): 1752-7. https://doi.org/10.1001/archinternmed.2010.373.

BACKGROUND: Data on complications of gastrointestinal endoscopic procedures are limited. We evaluated prospectively the incidence and cost of hospital visits resulting from outpatient endoscopy.

METHODS: We developed an electronic medical record-based system to record automatically admissions to the emergency department (ED) within 14 days after endoscopy. Physicians evaluated all reported cases for relatedness of the ED visit to the prior endoscopy based on predetermined criteria.

RESULTS: We evaluated 6383 esophagogastroduodenoscopies (EGDs) and 11 632 colonoscopies (7392 for screening and surveillance). Among these, 419 ED visits and 266 hospitalizations occurred within 14 days after the procedure. One hundred thirty-four (32%) of the ED visits and 76 (29%) of the hospitalizations were procedure related, whereas 31 complications were recorded by standard physician reporting (P < .001). Procedure-related hospital visits occurred in 1.07%, 0.84%, and 0.95% of all EGDs, all colonoscopies, and screening colonoscopies, respectively. The mean costs were $1403 per ED visit and $10 123 per hospitalization based on Medicare standardized rates. Across the overall screening/surveillance colonoscopy program, these episodes added $48 per examination.

CONCLUSIONS: Using a novel automated system, we observed a 1% incidence of related hospital visits within 14 days of outpatient endoscopy, 2- to 3-fold higher than recent estimates. Most events were not captured by standard reporting, and strategies for automating adverse event reporting should be developed. The cost of unexpected hospital visits postendoscopy may be significant and should be taken into account in screening or surveillance programs.

Ganz, Aura, Xunyi Yu, James Schafer, Sophie D’Hauwe, Larry A Nathanson, Jonathan Burstein, Gregory R Ciottone, and Graydon Lord. (2010) 2010. “DIORAMA: Dynamic Information Collection and Resource Tracking Architecture.”. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference 2010: 386-9. https://doi.org/10.1109/IEMBS.2010.5628007.

DIORAMA is a real-time scalable decision support framework built on rapid information collection and accurate resource tracking functionalities. Using RFID technology the proposed system tracks emergency responders and victims at the disaster scene. DIORAMA improves the accuracy and decreases the time it takes rescuers to triage, treat and evacuate victims from a disaster scene, as compared to the traditional methods and process that involves using paper triage tags. The information can then be viewed from a website that shows a satellite image of the disaster area with icons representing the paramedics and victims.

Kaji, Amy H, Roger J Lewis, Tony Beavers-May, Robert Berg, Eileen Bulger, Charles Cairns, Clifton Callaway, et al. (2010) 2010. “Summary of NIH Medical-Surgical Emergency Research Roundtable Held on April 30 to May 1, 2009.”. Annals of Emergency Medicine 56 (5): 522-37. https://doi.org/10.1016/j.annemergmed.2010.03.014.

STUDY OBJECTIVE: In 2003, the Institute of Medicine Committee on the Future of Emergency Care in the United States Health System convened and identified a crisis in emergency care in the United States, including a need to enhance the research base for emergency care. As a result, the National Institutes of Health (NIH) formed an NIH Task Force on Research in Emergency Medicine to enhance NIH support for emergency care research. Members of the NIH Task Force and academic leaders in emergency care participated in 3 roundtable discussions to prioritize current opportunities for enhancing and conducting emergency care research. The objectives of these discussions were to identify key research questions essential to advancing the scientific underpinnings of emergency care and to discuss the barriers and best means to advance research by exploring the role of research networks and collaboration between the NIH and the emergency care community.

METHODS: The Medical-Surgical Research Roundtable was convened on April 30 to May 1, 2009. Before the roundtable, the emergency care domains to be discussed were selected and experts in each of the fields were invited to participate in the roundtable. Domain experts were asked to identify research priorities and challenges and separate them into mechanistic, translational, and clinical categories. After the conference, the lists were circulated among the participants and revised to reach a consensus.

RESULTS: Emergency care research is characterized by focus on the timing, sequence, and time sensitivity of disease processes and treatment effects. Rapidly identifying the phenotype and genotype of patients manifesting a specific disease process and the mechanistic reasons for heterogeneity in outcome are important challenges in emergency care research. Other research priorities include the need to elucidate the timing, sequence, and duration of causal molecular and cellular events involved in time-critical illnesses and injuries, and the development of treatments capable of halting or reversing them; the need for novel animal models; and the need to understand why there are regional differences in outcome for the same disease processes. Important barriers to emergency care research include a limited number of trained investigators and experienced mentors, limited research infrastructure and support, and regulatory hurdles. The science of emergency care may be advanced by facilitating the following: (1) training emergency care investigators with research training programs; (2) developing emergency care clinical research networks; (3) integrating emergency care research into Clinical and Translational Science Awards; (4) developing emergency care-specific initiatives within the existing structure of NIH institutes and centers; (5) involving emergency specialists in grant review and research advisory processes; (6) supporting learn-phase or small, clinical trials; and (7) performing research to address ethical and regulatory issues.

CONCLUSION: Enhancing the research base supporting the care of medical and surgical emergencies will require progress in specific mechanistic, translational, and clinical domains; effective collaboration of academic investigators across traditional clinical and scientific boundaries; federal support of research in high-priority areas; and overcoming limitations in available infrastructure, research training, and access to patient populations.