Characteristics of Rapid Response Calls in the United States: An Analysis of the First 402,023 Adult Cases From the Get With the Guidelines Resuscitation-Medical Emergency Team Registry

Effect of Rapid Response Order Panels on Resident and Nurse Satisfaction

Background

Hospitals are required to have rapid response (RR) systems in place to respond to acute changes in a patient's condition. In high-stress situations like RR, medical residents face decision-making challenges due to time constraints and perceived pressure. Instituting order panels (OPs) can facilitate clinical decision making and improve residents' and nurses' satisfaction and patient safety.

Objective

This quality improvement (QI) project aimed to create and institute standardized OPs for common RR clinical scenarios to improve satisfaction of internal medicine residents and nurses with the RR process.

Methods

This was a single tertiary care center QI project that developed OPs for 10 common RR scenarios. Resident and nursing satisfaction with RR was assessed before and after OP implementation via survey and qualitative data collection.

Results

Residents and nurses expressed high levels of satisfaction across various aspects of the RR process before and after OP implementation in both quantitative and qualitative analysis. Increased satisfaction was observed among residents regarding time spent placing orders (94%; P = 0.02) and time spent correcting wrong orders (87%; P = 0.03) after OP implementation. The nurses' survey revealed no statistically significant differences in satisfaction before and after the implementation of OPs regarding communication, collaboration, efficiency, and organization of the team.

Conclusion

The introduction of standardized OPs for RRs resulted in increased satisfaction among internal medicine residents in terms of order placement and correcting wrong orders. Nurse satisfaction based on survey responses remained neutral. Qualitative data from both groups demonstrated a positive impact on communication, efficiency, and teamwork.

Wearable wireless continuous vital signs monitoring on the general ward

PURPOSE OF REVIEW

Wearable wireless sensors for continuous vital signs monitoring (CVSM) offer the potential for early identification of patient deterioration, especially in low-intensity care settings like general wards. This study aims to review advances in wearable CVSM - with a focus on the general ward - highlighting the technological characteristics of CVSM systems, user perspectives and impact on patient outcomes by exploring recent evidence.

RECENT FINDINGS

The accuracy of wearable sensors measuring vital signs exhibits variability, especially notable in ambulatory patients within hospital settings, and standard validation protocols are lacking. Usability of CMVS systems is critical for nurses and patients, highlighting the need for easy-to-use wearable sensors, and expansion of the number of measured vital signs. Current software systems lack integration with hospital IT infrastructures and workflow automation. Imperative enhancements involve nurse-friendly, less intrusive alarm strategies, and advanced decision support systems. Despite observed reductions in ICU admissions and Rapid Response Team calls, the impact on patient outcomes lacks robust statistical significance.

SUMMARY

Widespread implementation of CVSM systems on the general ward and potentially outside the hospital seems inevitable. Despite the theoretical benefits of CVSM systems in improving clinical outcomes, and supporting nursing care by optimizing clinical workflow efficiency, the demonstrated effects in clinical practice are mixed. This review highlights the existing challenges related to data quality, usability, implementation, integration, interpretation, and user perspectives, as well as the need for robust evidence to support their impact on patient outcomes, workflow and cost-effectiveness.

Pro-Con Debate: Universal Versus Selective Continuous Monitoring of Postoperative Patients

In this Pro-Con commentary article, we discuss use of continuous physiologic monitoring for clinical deterioration, specifically respiratory depression in the postoperative population. The Pro position advocates for 24/7 continuous surveillance monitoring of all patients starting in the postanesthesia care unit until discharge from the hospital. The strongest arguments for universal monitoring relate to inadequate assessment and algorithms for patient risk. We argue that the need for hospitalization in and of itself is a sufficient predictor of an individual's risk for unexpected respiratory deterioration. In addition, general care units carry the added risk that even the most severe respiratory events will not be recognized in a timely fashion, largely due to higher patient to nurse staffing ratios and limited intermittent vital signs assessments (e.g., every 4 hours). Continuous monitoring configured properly using a "surveillance model" can adequately detect patients' respiratory deterioration while minimizing alarm fatigue and the costs of the surveillance systems. The Con position advocates for a mixed approach of time-limited continuous pulse oximetry monitoring for all patients receiving opioids, with additional remote pulse oximetry monitoring for patients identified as having a high risk of respiratory depression. Alarm fatigue, clinical resource limitations, and cost are the strongest arguments for selective monitoring, which is a more targeted approach. The proponents of the con position acknowledge that postoperative respiratory monitoring is certainly indicated for all patients, but not all patients need the same level of monitoring. The analysis and discussion of each point of view describes who, when, where, and how continuous monitoring should be implemented. Consideration of various system-level factors are addressed, including clinical resource availability, alarm design, system costs, patient and staff acceptance, risk-assessment algorithms, and respiratory event detection. Literature is reviewed, findings are described, and recommendations for design of monitoring systems and implementation of monitoring are described for the pro and con positions.

A novel structured debriefing program for consensus determinations of in-hospital cardiac arrest predictability and preventability

AIM

Hospital rapid response systems aim to stop preventable cardiac arrests, but defining preventability is a challenge. We developed a multidisciplinary consensus-based process to determine in-hospital cardiac arrest (IHCA) preventability based on objective measures.

METHODS

We developed an interdisciplinary ward IHCA debriefing program at an urban quaternary-care academic hospital. This group systematically reviewed all IHCAs weekly, reaching consensus determinations of the IHCA's cause and preventability across three mutually exclusive categories: 1) unpredictable (no evidence of physiologic instability < 1 h prior to and within 24 h of the arrest), 2) predictable but unpreventable (meeting physiologic instability criteria in the setting of either a poor baseline prognosis or a documented goals of care conversation) or 3) potentially preventable (remaining cases).

RESULTS

Of 544 arrests between 09/2015 and 11/2023, 339 (61%) were deemed predictable by consensus, with 235 (42% of all IHCAs) considered potentially preventable. Potentially preventable arrests disproportionately occurred on nights and weekends (70% vs 55%, p = 0.002) and were more frequently respiratory than cardiac in etiology (33% vs 15%, p < 0.001). Despite similar rates of ROSC across groups (67-70%), survival to discharge was highest in arrests deemed unpredictable (31%), followed by potentially preventable (21%), and then those deemed predictable but unpreventable which had the lowest survival rate (16%, p = 0.007).

CONCLUSIONS

Our IHCA debriefing procedures are a feasible and sustainable means of determining the predictability and potential preventability of ward cardiac arrests. This approach may be useful for improving quality benchmarks and care processes around pre-arrest clinical activities.

Causes, Diagnostic Testing, and Treatments Related to Clinical Deterioration Events among High-Risk Ward Patients

OBJECTIVE

Timely intervention for clinically deteriorating ward patients requires that care teams accurately diagnose and treat their underlying medical conditions. However, the most common diagnoses leading to deterioration and the relevant therapies provided are poorly characterized. Therefore, we aimed to determine the diagnoses responsible for clinical deterioration, the relevant diagnostic tests ordered, and the treatments administered among high-risk ward patients using manual chart review.

DESIGN

Multicenter retrospective observational study.

SETTING

Inpatient medical-surgical wards at four health systems from 2006-2020 PATIENTS: Randomly selected patients (1,000 from each health system) with clinical deterioration, defined by reaching the 95th percentile of a validated early warning score, electronic Cardiac Arrest Risk Triage (eCART), were included.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Clinical deterioration was confirmed by a trained reviewer or marked as a false alarm if no deterioration occurred for each patient. For true deterioration events, the condition causing deterioration, relevant diagnostic tests ordered, and treatments provided were collected. Of the 4,000 included patients, 2,484 (62%) had clinical deterioration confirmed by chart review. Sepsis was the most common cause of deterioration (41%; n=1,021), followed by arrhythmia (19%; n=473), while liver failure had the highest in-hospital mortality (41%). The most common diagnostic tests ordered were complete blood counts (47% of events), followed by chest x-rays (42%), and cultures (40%), while the most common medication orders were antimicrobials (46%), followed by fluid boluses (34%), and antiarrhythmics (19%).

CONCLUSIONS

We found that sepsis was the most common cause of deterioration, while liver failure had the highest mortality. Complete blood counts and chest x-rays were the most common diagnostic tests ordered, and antimicrobials and fluid boluses were the most common medication interventions. These results provide important insights for clinical decision-making at the bedside, training of rapid response teams, and the development of institutional treatment pathways for clinical deterioration.

KEY POINTS

Question: What are the most common diagnoses, diagnostic test orders, and treatments for ward patients experiencing clinical deterioration? Findings: In manual chart review of 2,484 encounters with deterioration across four health systems, we found that sepsis was the most common cause of clinical deterioration, followed by arrythmias, while liver failure had the highest mortality. Complete blood counts and chest x-rays were the most common diagnostic test orders, while antimicrobials and fluid boluses were the most common treatments. Meaning: Our results provide new insights into clinical deterioration events, which can inform institutional treatment pathways, rapid response team training, and patient care.

The third Medical Emergency Teams - Hospital outcomes in a day (METHOD3) study: The application of quality metrics for rapid response systems around the world

Aim

This cross-sectional study aimed to assess the readiness of international hospitals to implement consensus-based quality metrics for rapid response systems (RRS) and evaluate the feasibility of collecting these metrics.

Methods

A digital survey was developed and distributed to hospital administrators and clinicians worldwide. The survey captured data on the recommended quality metrics for RRS and collected information on hospital characteristics. Statistical analysis included descriptive evaluations and comparisons by country and hospital type.

Results

A total of 109 hospitals from 11 countries participated in the survey. Most hospitals had some form of RRS in place, with multiple parameter track and trigger systems being commonly used. The survey revealed variations in the adoption of quality metrics among hospitals. Metrics related to patient-activated rapid response and organizational culture were collected less frequently. Geographical differences were observed, with hospitals in Australia and New Zealand demonstrating higher adoption of core quality metrics. Urban hospitals reported a lower number of recorded metrics compared to metropolitan and rural hospitals.

Conclusion

The study highlights the feasibility of collecting consensus-based quality metrics for RRS in international hospitals. However, variations in data collection and adoption of specific metrics suggest potential barriers and the need for further exploration. Standardized quality metrics are crucial for effective RRS functioning and continuous improvement in patient care. Collaborative initiatives and further research are needed to overcome barriers, enhance data collection capabilities, and facilitate knowledge sharing among healthcare providers to improve the quality and safety of RRS implementation globally.

Nightmare on CIL Street: A Simulation Series to Increase Confidence and Skill in Responding to Clinical Emergencies

Background

The Central Texas Veterans Health Care System (CTVHCS) in Temple, a 189-bed teaching hospital, recently opened its Center for Innovation and Learning for simulation-based learning. CTVHCS built a rapid response simulation curriculum to improve preparedness for internal medicine residents, medical students, and physician assistant students that exploits newly developed medical education technology.

Observations

The Center for Innovation and Learning curriculum was created based on the most common rapid response calls received over the previous 3 years. Cardiac, respiratory, and neurological simulations were implemented. Learners approach each scenario as if they were on night service alone without specialist help. Learners must identify tachyarrhythmia, impending respiratory failure, and a patient with encephalopathy requiring transfer.

Conclusions

Sixteen learners were surveyed before the simulation and after addressing each educational objective was completed and showed improvement. Educating trainees on rapid response scenarios by using a simulation curriculum provides many benefits. Trainees reported improvement in addressing cardiac, respiratory, and neurological rapid response scenarios after experiencing the simulation.

Rapid response events with multiple triggers are associated with poor outcomes in children

Objective

We describe the characteristics and outcomes of pediatric rapid response team (RRT) events within a single institution, categorized by reason for RRT activation (RRT triggers). We hypothesized that events with multiple triggers are associated with worse outcomes.

Patients and Methods

Retrospective 3-year study at a high-volume tertiary academic pediatric hospital. We included all patients with index RRT events during the study period.

Results

Association of patient and RRT event characteristics with outcomes including transfers to ICU, need for advanced cardiopulmonary support, ICU and hospital length of stay (LOS), and mortality were studied. We reviewed 2,267 RRT events from 2,088 patients. Most (59%) were males with a median age of 2 years and 57% had complex chronic conditions. RRT triggers were: respiratory (36%) and multiple (35%). Transfer to the ICU occurred after 1,468 events (70%). Median hospital and ICU LOS were 11 and 1 days. Need for advanced cardiopulmonary support was noted in 291 events (14%). Overall mortality was 85 (4.1%), with 61 (2.9%) of patients having cardiopulmonary arrest (CPA). Multiple RRT trigger events were associated with transfer to the ICU (559 events; OR 1.48; p < 0.001), need for advanced cardiopulmonary support (134 events; OR 1.68; p < 0.001), CPA (34 events; OR 2.36; p = 0.001), and longer ICU LOS (2 vs. 1 days; p < 0.001). All categories of triggers have lower odds of need for advanced cardiopulmonary support than multiple triggers (OR 1.73; p < 0.001).

Conclusions

RRT events with multiple triggers were associated with cardiopulmonary arrest, transfer to ICU, need for cardiopulmonary support, and longer ICU LOS. Knowledge of these associations can guide clinical decisions, care planning, and resource allocation.

Rapid Response Team Activation Triggers in Adults and Children: An Integrative Review

PURPOSE

This integrative review aims to identify the triggers for rapid response team (RRT) activation and their outcomes in pediatric patients and to compare them with those of adult patients. In addition, this integrative review synthesizes the outcomes of cardiopulmonary resuscitation (CPR), intensive care unit (ICU) admission, length of hospital stay, and mortality following RRT activation.

METHOD

An integrative review using the Whittemore and Knafl methodology was undertaken with a search of three large databases (PubMed, Ovid MEDLINE, and CINAHL) and found 25 relevant studies published in the years 2017 through 2022.

RESULTS

Tachypnea, decreased oxygen saturation, tachycardia, changes in blood pressure, and level of consciousness were the most common triggers in both populations. However, specific activation triggers differed between children and adults.

CONCLUSIONS

The most common triggers for RRT are detectable through vital signs monitoring; therefore, vigilant tracking of patients' vital signs is critical and can provide early clues to clinical deterioration.

Features of the triggering of the yellow code and factors associated with the occurrence of adverse events

Objective:

to analyze the characteristics of the activation of the yellow code in wards and identify the factors associated with adverse events after the Rapid Response Team.

Methods:

a cross-sectional study with retrospective analysis of medical records of adults admitted to medical or surgical clinic wards of the University Hospital of São Paulo.

Results:

among the 91 patients, the most frequent signs of triggers (n=107) were peripheral oxygen saturation of less than 90% (40.2%) and hypotension (30.8%). Regarding the associated factors the research identified each minute of attendance of the Rapid Response Team in the wards increased by 1.2% odds of adverse events (twenty-four unplanned admission in the ICU and one cardiac arrest) in the sample (p=0.014).

Conclusions:

decreased oxygen saturation and hypotension were the main reasons for the triggering, and the length of care was associated with the frequency of adverse events.

Características do acionamento do código amarelo e fatores associados à ocorrência de eventos adversos

RESUMO Objetivo: analisar as características do acionamento do código amarelo em unidades de internação e identificar os fatores associados à ocorrência de eventos adversos após o atendimento do Time de Resposta Rápida. Métodos: estudo transversal com análise retrospectiva de prontuários de adultos internados em enfermarias de Clínica Médica ou Cirúrgica de hospital universitário de São Paulo. Resultados: entre os 91 pacientes, os sinais mais frequentes dos acionamentos (n=107) foram saturação periférica de oxigênio inferior a 90% (40,2%) e hipotensão arterial (30,8%). Quanto aos fatores associados, identificou-se que cada minuto de atendimento do Time de Resposta Rápida nas enfermarias aumentou em 1,2% a chance de ocorrência de eventos adversos (24 internações não planejadas em Unidade de Terapia Intensiva e uma parada cardiorrespiratória) na amostra (p=0,014). Conclusões: queda da saturação de oxigênio e hipotensão arterial foram os principais motivos de acionamento, e o tempo de atendimento foi associado à ocorrência de eventos adversos.

Indications and measures of medical emergency teams: a retrospective evaluation of in-hospital emergency operations of the German Resuscitation Register

BACKGROUND

The present study examines characteristics and interventions of medical emergency teams (MET) in in-hospital emergency care.

METHODS

Analysis of all in-hospital emergencies in patients ≥18 years at 62 hospitals with established MET from the database of the German Resuscitation Registry between 2014-2019. The evaluation covered indications for activation using the ABCDE-scheme, time intervals of arrival and patient care as well as the performed invasive/medical interventions.

RESULTS

Out of 62 hospitals 14,166 in-hospital emergencies (male: 8033 [56.7%]; mean age: 64±18 years) were included. Causes of activation were circulation (5760 [40.7%]), disability (4076 [28.8%]), breathing (3649 [25.8%]) and airway-problems (1589 [11.2%]). Average arrival time at the emergency scene was 4±3 minutes, supply time of MET was 24±23 minutes. Endotracheal intubation was required in 1757 (12.4%) and difficult intubation occurred in 201 (11.4%) patients with the necessity for cricothyroidotomy in eight cases (3.9%). Invasive blood-pressure-measurement was indicated in 1074 (7.6%) patients. Catecholamines were required for hemodynamic stabilization in 2421 (17.1%) patients (norepinephrine: 1520 [10.7%], epinephrine: 430 [3.0%], dobutamine: 26 [0.2%]).

CONCLUSIONS

Current in-hospital emergency care requires special skills in invasive hemodynamic and airway interventions. Recommendations from professional societies are necessary to optimize equipment (e.g. videolaryngoscopy, invasive blood pressure management), training, care algorithms and staff composition against the background of an increasing shortage of resources in the healthcare system.

Association of Time to Rapid Response Team Activation With Patient Outcomes Using a Range of Physiologic Deterioration Thresholds

Clinical deterioration of hospitalized patients is common and can lead to critical illness and death. Rapid response teams (RRTs) assess and treat high-risk patients with signs of clinical deterioration to prevent further worsening and subsequent adverse outcomes. Whether activation of the RRT early in the course of clinical deterioration impacts outcomes, however, remains unclear. We sought to characterize the relationship between increasing time to RRT activation after physiologic deterioration and short-term patient outcomes.

DESIGN

Retrospective multicenter cohort study.

SETTING

Three academic hospitals in Pennsylvania.

PATIENTS

We included the RRT activation of a hospitalization for non-ICU inpatients greater than or equal to 18 years old.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

The primary exposure was time to RRT activation after physiologic deterioration. We selected four Cardiac Arrest Risk Triage (CART) score thresholds a priori from which to measure time to RRT activation (CART score ≥ 12, ≥ 16, ≥ 20, and ≥ 24). The primary outcome was 7-day mortality-death or discharge to hospice care within 7 days of RRT activation. For each CART threshold, we modeled the association of time to RRT activation duration with 7-day mortality using multivariable fractional polynomial regression. Increased time from clinical decompensation to RRT activation was associated with higher risk of 7-day mortality. This relationship was nonlinear, with odds of mortality increasing rapidly as time to RRT activation increased from 0 to 4 hours and then plateauing. This pattern was observed across several thresholds of physiologic derangement.

CONCLUSIONS

Increasing time to RRT activation was associated in a nonlinear fashion with increased 7-day mortality. This relationship appeared most marked when using a CART score greater than 20 threshold from which to measure time to RRT activation. We suggest that these empirical findings could be used to inform RRT delay definitions in further studies to determine the clinical impact of interventions focused on timely RRT activation.

Improving Communication and Response to Clinical Deterioration to Increase Patient Safety in the Intensive Care Unit

BACKGROUND

In the critical care setting, early recognition of clinical decompensation is imperative to trigger prompt intervention and optimize patient outcomes.

LOCAL PROBLEM

In a 20-bed surgical intensive care unit of an urban academic medical center, cases of clinical deterioration that highlighted opportunities to improve the communication process prompted a reassessment of health care provider roles and responsibilities.

METHODS

A quality improvement initiative was implemented to enhance communication among intensive care unit clinical staff members, improve the timeliness of reporting clinical deterioration, and ensure implementation of timely, appropriate interventions to eliminate adverse outcomes.

INTERVENTIONS

Nurses were surveyed to determine their perceptions of communication and collaboration among providers. Education was provided that focused on familiarizing nurses with clinical conditions necessitating direct notification of the attending surgical intensivist and included review of a case in which escalation of care did not occur. Multidisciplinary rounds were expanded to engage night-shift nurses in clinical discussions and decision-making. A template was created to document episodes of escalation in the electronic health record.

RESULTS

Since implementation of the quality improvement interventions, no incidents of patient harm or death related to failure to escalate have occurred to date. A total of 16 episodes of escalation for clinical deterioration were documented in the electronic health record. Most nurses reported an increased level of confidence in understanding when to escalate concerns about clinical deterioration.

CONCLUSION

Implementing a multimodal program to empower nurses to escalate clinical concerns directly to the attending physician eliminated adverse events related to failure to escalate.

Dynamic early warning scores for predicting clinical deterioration in patients with respiratory disease

Background

The National Early Warning Score-2 (NEWS-2) is used to detect patient deterioration in UK hospitals but fails to take account of the detailed granularity or temporal trends in clinical observations. We used data-driven methods to develop dynamic early warning scores (DEWS) to address these deficiencies, and tested their accuracy in patients with respiratory disease for predicting (1) death or intensive care unit admission, occurring within 24 h (D/ICU), and (2) clinically significant deterioration requiring urgent intervention, occurring within 4 h (CSD).

Methods

Clinical observations data were extracted from electronic records for 31,590 respiratory in-patient episodes from April 2015 to December 2020 at a large acute NHS Trust. The timing of D/ICU was extracted for all episodes. 1100 in-patient episodes were annotated manually to record the timing of CSD, defined as a specific event requiring a change in treatment. Time series features were entered into logistic regression models to derive DEWS for each of the clinical outcomes. Area under the receiver operating characteristic curve (AUROC) was the primary measure of model accuracy.

Results

AUROC (95% confidence interval) for predicting D/ICU was 0.857 (0.852–0.862) for NEWS-2 and 0.906 (0.899–0.914) for DEWS in the validation data. AUROC for predicting CSD was 0.829 (0.817–0.842) for NEWS-2 and 0.877 (0.862–0.892) for DEWS. NEWS-2 ≥ 5 had sensitivity of 88.2% and specificity of 54.2% for predicting CSD, while DEWS ≥ 0.021 had higher sensitivity of 93.6% and approximately the same specificity of 54.3% for the same outcome. Using these cut-offs, 315 out of 347 (90.8%) CSD events were detected by both NEWS-2 and DEWS, at the time of the event or within the previous 4 h; 12 (3.5%) were detected by DEWS but not by NEWS-2, while 4 (1.2%) were detected by NEWS-2 but not by DEWS; 16 (4.6%) were not detected by either scoring system.

Conclusion

We have developed DEWS that display greater accuracy than NEWS-2 for predicting clinical deterioration events in patients with respiratory disease. Prospective validation studies are required to assess whether DEWS can be used to reduce missed deteriorations and false alarms in real-life clinical settings.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12931-022-02130-6.

Implementation of a Night-Float Curriculum: Impact on Intern Confidence over Time

OBJECTIVES

Formal nighttime education is becoming increasingly necessary as more internal medicine (IM) residency programs adopt night-float rotations (NFRs); however, the efficacy of an NFR curriculum throughout an academic year and which topics in an NFR curriculum increase trainee confidence are unknown. We implemented a 12-module, self-paced NFR curriculum for 76 postgraduate year-1 residents at an academic IM residency program. We evaluated the impact of this curriculum on postgraduate year-1 residents' clinical confidence, as well as longitudinal efficacy of the curriculum.

METHODS

Night-float interns' (NFIs) clinical confidence regarding specific curricular topics was evaluated overall and during specific timeframes within the academic year. Pre- and post-NFR surveys using Likert scales for each topic were administered to NFIs from June 24, 2020 to March 2, 2021, representing 32 week-long NFR cycles.

RESULTS

NFIs' pre- and postrotation confidence in managing clinical scenarios significantly improved for all 12 topics in the NFR curriculum. The NFR curriculum resulted most significantly in improved confidence during the first 4 months of the academic year, with 11 of 12 curricular topics reaching the threshold for statistical significance. Modules on altered mental status, hypotension, narrow-complex tachyarrhythmias, new fever, and sepsis and antibiotic escalation maintained their efficacy for the longest periods of time.

CONCLUSIONS

It may be especially important to emphasize an NFR curriculum at the beginning of the academic year. IM residency programs also may wish to carefully consider that certain topics may maintain their efficacy throughout the year, whereas other topics should potentially be replaced with more complex modules as the academic year progresses.

Upcoming and urgent challenges in critical care research based on COVID-19 pandemic experience

While the coronavirus disease 2019 (COVID-19) pandemic placed a heavy burden on healthcare systems worldwide, it also induced urgent mobilisation of research teams to develop treatments preventing or curing the disease and its consequences. It has, therefore, challenged critical care research to rapidly focus on specific fields while forcing critical care physicians to make difficult ethical decisions. This narrative review aims to summarise critical care research -from organisation to research fields- in this pandemic setting and to highlight opportunities to improve research efficiency in the future, based on what is learned from COVID-19. This pressure on research revealed, i.e., i/ the need to harmonise regulatory processes between countries, allowing simplified organisation of international research networks to improve their efficiency in answering large-scale questions; ii/ the importance of developing translational research from which therapeutic innovations can emerge; iii/ the need for improved triage and predictive scores to rationalise admission to the intensive care unit. In this context, key areas for future critical care research and better pandemic preparedness are artificial intelligence applied to healthcare, characterisation of long-term symptoms, and ethical considerations. Such collaborative research efforts should involve groups from both high and low-to-middle income countries to propose worldwide solutions. As a conclusion, stress tests on healthcare organisations should be viewed as opportunities to design new research frameworks and strategies. Worldwide availability of research networks ready to operate is essential to be prepared for next pandemics. Importantly, researchers and physicians should prioritise realistic and ethical goals for both clinical care and research.

Long term survival following a medical emergency team call at an Australian regional hospital

Objective: To investigate the long term survival of medical emergency team (MET) patients at an Australian regional hospital and describe associated patient and MET call characteristics. Design: Retrospective cohort study. Data linkage to the statewide death registry was performed to allow for long term survival analysis, including multivariable Cox proportional hazards regression and production of Kaplan-Meier survival curves. Setting: A large Australian regional hospital. Participants: Adult patients who received a MET call from 1 July 2012 to 3 March 2020. Main outcome measures: Survival to 30, 90 and 180 days; one year; and 5-years after index MET call. Results: The study included 6499 eligible patients. The cohort median age was 71 years, and 52.4% of the patients were female. Surgical (39.6%) and medical (36.9%) patients comprised most of the cohort. Thirty-day survival was 86.5% one-year survival was 66.1%. Among patients aged < 75 years, factors independently associated with significantly higher long term mortality included age (hazard ratio [HR], 3.26 [95% CI, 2.63-4.06]; for patients aged 65-74 v 18-54 years), male sex (HR, 0.71 [95% CI, 0.61-0.83]; for females) and pre-existing limitation of medical therapy (HR, 2.76; 95% CI, 2.28-3.35). Among patients aged ≥ 75 years, factors independently associated with significantly higher long term mortality included age (HR, 1.46 [95% CI, 1.29-1.65]; for patients aged ≥ 85 years), male sex (HR, 0.74 [95% CI, 0.66-0.83]; for females), and altered MET criteria (HR, 1.33; 95% CI, 1.03-1.71). Conclusions: Long term survival probabilities of MET call patients are affected by factors including age, sex, and limitation of medical therapy status. These data may be useful for clinicians conducting end-of-life discussions with patients.

Wireless wearables for postoperative surveillance on surgical wards: a survey of 1158 anaesthesiologists in Western Europe and the USA

Background

Several continuous monitoring solutions, including wireless wearable sensors, are available or being developed to improve patient surveillance on surgical wards. We designed a survey to understand the current perception and expectations of anaesthesiologists who, as perioperative physicians, are increasingly involved in postoperative care.

Methods

The survey was shared in 40 university hospitals from Western Europe and the USA.

Results

From 5744 anaesthesiologists who received the survey link, there were 1158 valid questionnaires available for analysis. Current postoperative surveillance was mainly based on intermittent spot-checks of vital signs every 4-6 h in the USA (72%) and every 8-12 h in Europe (53%). A majority of respondents (91%) considered that continuous monitoring of vital signs should be available on surgical wards and that wireless sensors are preferable to tethered systems (86%). Most respondents indicated that oxygen saturation (93%), heart rate (80%), and blood pressure (71%) should be continuously monitored with wrist devices (71%) or skin adhesive patches (54%). They believed it may help detect clinical deterioration earlier (90%), decrease rescue interventions (59%), and decrease hospital mortality (54%). Opinions diverged regarding the impact on nurse workload (increase 46%, decrease 39%), and most respondents considered that the biggest implementation challenges are economic (79%) and connectivity issues (64%).

Conclusion

Continuous monitoring of vital signs with wireless sensors is wanted by most anaesthesiologists from university hospitals in Western Europe and in the USA. They believe it may improve patient safety and outcome, but may also be challenging to implement because of cost and connectivity issues.

A surgical needs assessment for airway rapid responses: A retrospective observational study

BACKGROUND

Airway rapid response (ARR) teams can be compiled of anesthesiologists, intensivists, otolaryngologists, general and thoracic surgeons, respiratory therapists, and nurses. The optimal composition of an ARR team is unknown but considered to be resource intensive. We sought to determine the type of technical procedures performed during an ARR activation to inform team composition.

METHODS

A large urban quaternary academic medical center retrospective review (2016-2019) of adult ARR patients was performed. Analysis included ARR demographics, patient characteristics, characteristics of preexisting tracheostomies, incidence of concomitant conditions, and procedures completed during an ARR event.

RESULTS

A total of 345 ARR patients with a median age of 60 years (interquartile range, 47-69 years) and a median time to ARR conclusion of 28 minutes (interquartile range, 14-47 minutes) were included. About 41.7% of the ARR had a preexisting tracheostomy. Overall, there were 130 procedures completed that can be performed by a general surgeon in addition to the 122 difficult intubations. These procedures included recannulation of a tracheostomy, operative intervention, new emergent tracheostomy or cricothyroidotomy, thoracostomy tube placement, initiation of extracorporeal membrane oxygenation, and pericardiocentesis.

CONCLUSION

Highly technical procedures are common during an ARR, including procedures related to tracheostomies. Surgeons possess a comprehensive skill set that is unique and comprehensive with respect to airway emergencies. This distinctive skill set creates an important role within the ARR team to perform these urgent technical procedures.

LEVEL OF EVIDENCE

Epidemiologic/prognostic, level III.

A physician-led medical emergency team increases the rate of medical interventions: A multicenter study in Korea

BACKGROUND

According to the rapid response system's team composition, responding teams were named as rapid response team (RRT), medical emergency team (MET), and critical care outreach. A RRT is often a nurse-led team, whereas a MET is a physician-led team that mainly plays the role of an efferent limb. As few multicenter studies have focused on physician-led METs, we comprehensively analyzed cases for which physician-led METs were activated.

METHODS

We retrospectively analyzed cases for which METs were activated. The study population consisted of subjects over 18 years of age who were admitted in the general ward from January 2016 to December 2017 in 9 tertiary teaching hospitals in Korea. The data on subjects' characteristics, activation causes, activation methods, performed interventions, in-hospital mortality, and intensive care unit (ICU) transfer after MET activation were collected and analyzed.

RESULTS

In this study, 12,767 cases were analyzed, excluding those without in-hospital mortality data. The subjects' median age was 67 years, and 70.4% of them were admitted to the medical department. The most common cause of MET activation was respiratory distress (35.1%), followed by shock (11.8%), and the most common underlying disease was solid cancer (39%). In 7,561 subjects (59.2%), the MET was activated using the screening system. The commonly performed procedures were arterial line insertion (17.9%), intubation (13.3%), and portable ultrasonography (13.0%). Subsequently, 29.4% of the subjects were transferred to the ICU, and 27.2% died during hospitalization.

CONCLUSIONS

This physician-led MET cohort showed relatively high rates of intervention, including arterial line insertion and portable ultrasonography, and low ICU transfer rates. We presume that MET detects deteriorating patients earlier using a screening system and begins ICU-level management at the patient's bedside without delay, eventually preventing the patient's condition from worsening and transfer to the ICU.

Duration and management of sepsis-associated hypotension at rapid response team call-outs to patients subsequently admitted to the intensive care unit: A case series

BACKGROUND

Sepsis-related hypotension in hospital patients is a common reason for rapid response team (RRT) attendance and transfer to intensive care, but little is known about the duration and management of hypotension during these RRT call-outs.

OBJECTIVES

We aimed to describe the duration and management of hypotension during RRT call-outs to patients with sepsis-related hypotension who required transfer to intensive care.

METHODS

RRT call-outs during 2018 for hypotension with transfer to intensive care were identified from a prospectively maintained database of RRT call-outs at a single tertiary hospital. From these, the records of a random sample of 60 cases were reviewed, and those attributed to sepsis and without missing data were described. Hypotension was defined as systolic blood pressure < 90 mmHg.

RESULTS

There were 117 RRT call-outs for hypotension with transfer to intensive care, and of the 60 cases randomly chosen for further review, 41 were deemed sepsis related and were not missing data. The average age of the patients was 62 years, and 18 (44%) were already receiving antibiotics. The median time to arrival in the intensive care unit was 47 minutes. Patients were hypotensive for approximately two-thirds of their RRT time, despite 88% receiving some initial resuscitative treatments (fluids and/or vasopressors). Thirty-two (78%) were treated with intravenous fluids, and 20 (49%), with vasopressors. Patients spent 3 [2-4] days in intensive care, and 7 (17%) died in hospital.

CONCLUSIONS

Patients with sepsis-related hypotension requiring an RRT call and transfer to intensive care remain hypotensive for a substantial duration of the call. This concept of adequacy of resuscitation after rapid response calls needs further exploration in a larger study.

Characteristics and Outcomes of Pediatric Rapid Response With a Respiratory Trigger

BACKGROUND AND OBJECTIVES

Authors of adult rapid response (RRT) studies have established that RRT triggers play an important role in outcomes, but this association is not studied in pediatrics. In this study, we explore the characteristics and outcomes of pediatric rapid response with a respiratory trigger (Resp-RRT). We hypothesize that outcomes differ on the basis of patients' primary diagnoses at the time of Resp-RRT.

METHODS

We conducted a 2-year retrospective observational study at an academic tertiary care pediatric hospital.

RESULTS

Among the 1287 Resp-RRTs in 1060 patients, those with a respiratory diagnosis (N = 686) were younger, less likely to have complex chronic conditions, and less likely to have concurrent triggers (P < .01) than those with a nonrespiratory diagnosis (N = 601). Patients with a respiratory diagnosis were more likely to receive noninvasive ventilation, less likely to receive vasoactive support, and had lower 30-day mortality (P < .01). Among those with a respiratory diagnosis, the 541 patients with acute illness were younger, less likely to have complex chronic conditions, and less likely to receive vasoactive support than those with acute on chronic illness (N = 100) (P < .01).

CONCLUSIONS

Among pediatric respiratory-triggered RRT events, patients with a respiratory diagnosis were more likely to receive acute respiratory support in ICU but have better long-term outcomes. Presence of complex chronic conditions increases risk of acute respiratory support and mortality. The interplay of primary diagnosis with RRT trigger can potentially inform resource needs and outcomes for pediatric Resp-RRTs.

Prevalence of rapid response systems in small hospitals: A questionnaire survey

ABSTRACT

The rapid response system (RRS) was introduced for early stage intervention in patients with deteriorating clinical conditions. Responses to unexpected in-hospital patient emergencies varied among hospitals. This study was conducted to understand the prevalence of RRS in smaller hospitals and to identify the need for improvements in the responses to in-hospital emergencies.A questionnaire survey of 971 acute-care hospitals in western Japan was conducted from May to June 2019 on types of in-hospital emergency response for patients in cardiac arrest (e.g., medical emergency teams [METs]), before obvious deterioration (e.g., rapid response teams [RRTs]), and areas for improvement.We received 149 responses, including those from 56 smaller hospitals (≤200 beds), which provided fewer responses than other hospitals. Response systems for cardiac arrest were used for at least a limited number of hours in 129 hospitals (87%). The absence of RRS was significantly more frequent in smaller hospitals than in larger hospitals (13/56, 23% vs 1/60, 2%; P < .01). METs and RRTs operated in 17 (11%) and 15 (10%) hospitals, respectively, and the operation rate for RRTs was significantly lower in smaller hospitals than in larger hospitals (1/56, 2% vs 12/60, 20%; P < .01). Respondents identified the need for education and more medical staff and supervisors; data collection or involvement of the medical safety management sector was ranked low.The prevalence of RRS or predetermined responses before obvious patient deterioration was ≤10% in small hospitals. Specific education and appointment of supervisors could support RRS in small hospitals.

Perioperative Medical Emergencies in a 23-Hour Surgical Procedure Unit

Purpose

Our 174-bed hospital operates a 23-hour/day procedure unit without a dedicated on-site high dependency unit or intensive care unit. The purpose of this investigation is to assess the incidence of medical emergency response (MER) and Code Blue (CB) events over 12 months.

Patients and Methods

A retrospective analysis of hospital records was conducted. Patients were identified using the medical emergency team (MET) database. Information pertaining to whether the patient was pre-operative, post-operative (including time and characteristics of the operation), or medical short stay overflow was obtained, in addition to the reason for the MER/CB event and outcome of the event.

Results

Of all hospital events, 8.45% (47 of 550) occurred in the perioperative ward. The incidence rate of events was 0.76% (95% CI: 0.53% to 0.99%) of all scheduled operations. The surgical procedure cancellation rate due to pre-operative MER/CB events was 0.11% (95% CI: 0.02% to 0.20%). Orthopedic surgery and ENT surgery were associated with the highest incidence of MER/CB events. Post-operative hypotension and reduced consciousness associated with vasovagal episodes were the most common clusters. The mean time after the operation for events to occur was 5.21 hours. 25.5% of events occurred outside of standard day surgery operating hours when there was limited access to onsite consultant anaesthetic or surgical staff (17:00 to 08:00).

Conclusion

This study highlights the anticipated medical emergencies for a 23-hour procedural unit and is of particular interest for evaluation by other short stay surgical, outpatient procedural, or rural hospital surgical units with limited after hours on-site critical care support.