Activities during interruptions in cardiopulmonary resuscitation: A simulator study

Effect of a specific training intervention with task interruptions on the quality of simulated advance life support: A randomized multi centered controlled simulation study

PURPOSE

Task interruptions (TI) are frequent disturbances for emergency professionals performing advanced life support (ALS). The aim of our study was to evaluate a specific training intervention with TI on the quality of simulated ALS.

METHODS

During this multi centered randomized controlled trial, each team included one resident, one nurse and one emergency physician. The teams were randomized for the nature of their training session: control (without interruption) or intervention (with TI). The primary outcome was non-technical skills assessed with the TEAM score. We also measured the no flow time, the Cardiff score and chest compression depth and rate.

RESULTS

On a total of 21 included teams, 11 were randomized to a control training session and 10 to the specific TI training. During training, teams' characteristics and skills were similar between the two groups. During the evaluation session, the TEAM score was not different between groups: median score for control group 33,5 vs 31,5 for intervention group. We also report similar no flow time and Cardiff score.

CONCLUSION

In this simulated ALS study, a specific training intervention with TI did not improve technical and non-technical skills. Further research is required to limit the impact of TI in emergency settings.

The Impact of Withdrawn vs. Agitated Relatives during Resuscitation on Team Workload: A Single-Center Randomised Simulation-Based Study

Background: Guidelines recommend that relatives be present during cardiopulmonary resuscitation (CPR). This randomised trial investigated the effects of two different behaviour patterns of relatives on rescuers’ perceived stress and quality of CPR. Material and methods: Teams of three to four physicians were randomised to perform CPR in the presence of no relatives (control group), a withdrawn relative, or an agitated relative, played by actors according to a scripted role, and to three different models of leadership (randomly determined by the team or tutor or left open). The scenarios were video-recorded. Hands-on time was primary, and the secondary outcomes comprised compliance to CPR algorithms, perceived workload, and the influence of leadership. Results: 1229 physicians randomised to 366 teams took part. The presence of a relative did not affect hands-on time (91% [87−93] vs. 92% [88−94] for “withdrawn” and 92 [88−93] for “agitated” relatives; p = 0.15). The teams interacted significantly less with a “withdrawn” than with an “agitated” relative (11 [7−16]% vs. 23 [15−30]% of the time spent for resuscitation, p < 0.01). The teams confronted with an “agitated” relative showed more unsafe defibrillations, higher ventilation rates, and a delay in starting CPR (all p < 0.05 vs. control). The presence of a relative increased frustration, effort, and perceived temporal demands (all <0.05 compared to control); in addition, an “agitated” relative increased mental demands and total task load (both p < 0.05 compared to “withdrawn” and control group). The type of leadership condition did not show any effects. Conclusions: Interaction with a relative accounted for up to 25% of resuscitation time. Whereas the presence of a relative per se increased the task load in different domains, only the presence of an “agitated” relative had a marginal detrimental effect on CPR quality (GERMAN study registers number DRKS00024761).

Impact of family presence during cardiopulmonary resuscitation on team performance and perceived task load: a prospective randomised simulator-based trial

OBJECTIVES

Guidelines recommend family presence to be offered during cardiopulmonary resuscitation (CPR). Data on the effects of family presence on the quality of CPR and rescuers' workload and stress levels are sparse and conflicting. This randomised trial investigated the effects of family presence on quality of CPR, and rescuers' perceived stress.

DESIGN

Prospective randomised single-blind trial.

SETTING

Voluntary workshops of educational courses.

PARTICIPANTS

1085 physicians (565 men) randomised to 325 teams entered the trial. 318 teams completed the trial without protocol violation.

INTERVENTIONS

Teams were randomised to a family presence group (n=160) or a control group (n=158) and to three versions of leadership: (a) designated at random, (b) designated by the team or (c) left open. Thereafter, teams were confronted with a simulated cardiac arrest which was video-recorded. Trained actors played a family member according a scripted role.

MAIN OUTCOME MEASURES

The primary endpoint was hands-on time. Secondary outcomes included interaction time, rescuers' perceived task load and adherence to CPR algorithms.

RESULTS

Teams interacted with the family member during 24 (17-36) % of the time spent for resuscitation. Family presence had no effect on hands-on time (88% (84%-91%) vs 89% (85%-91%); p=0.18). Family presence increased frustration (60 (30-75) vs 45 (30-70); p<0.001) and perceived temporal (75 (55-85) vs 70 (50-80); p=0.001) and mental demands (75 (60-85) vs 70 (55-80); p=0.009), but had no relevant effect on CPR performance markers. Leadership condition had no effects.

CONCLUSIONS

Interacting with a family member occupied about a quarter of the time spent for CPR. While this additional task was associated with an increase in frustration and perceived temporal and mental demands, family presence had no relevant negative effect on the quality of CPR.

TRIAL REGISTRATION NUMBER

DRKS00024759.

Gender-focused training improves leadership of female medical students: A randomised trial

OBJECTIVES

Recent research suggests that the gender of health care providers may affect their medical performance. This trial investigated (1) the effects of the gender composition of resuscitation teams on leadership behaviour of first responders and (2) the effects of a brief gender-specific instruction on leadership behaviour of female first responders.

METHODS

This prospective randomised single-blinded trial, carried out between 2008 and 2016, included 364 fourth-year medical students of two Swiss universities. One hundred and eighty-two teams of two students each were confronted with a simulated cardiac arrest, occurring in the presence of a first responder while a second responder is summoned to help. The effect of gender composition was assessed by comparing all possible gender-combinations of first and second responders. The gender-specific instruction focused on the importance of leadership, gender differences in self-esteem and leadership, acknowledgement of unease while leading, professional role, and mission statement to lead was delivered orally for 10 min by a staff physician and tested by randomising female first responders to the intervention group or the control group. The primary outcome, based on ratings of video-recorded performance, was the first responders' percentage contribution to their teams' leadership statements and critical treatment decision making.

RESULTS

Female first responders contributed significantly less to leadership statements (53% vs. 76%; P = 0.001) and critical decisions (57% vs. 76%; P = 0.018) than male first responders. For critical treatment decisions, this effect was more pronounced (P = 0.007) when the second responder was male. The gender-specific intervention significantly increased female first responder's contribution to leadership statements (P = 0.024) and critical treatment decisions (P = 0.034).

CONCLUSIONS

Female first responders contributed less to their rescue teams' leadership and critical decision making than their male colleagues. A brief gender-specific leadership instruction was effective in improving female medical students' leadership behaviours.

U SO CARE-The Impact of Cardiac Ultrasound during Cardiopulmonary Resuscitation: A Prospective Randomized Simulator-Based Trial

BACKGROUND

Actual cardiopulmonary resuscitation (CPR) guidelines recommend point-of-care ultrasound (POCUS); however, data on POCUS during CPR are sparse and conflicting. This randomized trial investigated the effects of POCUS during CPR on team performance and diagnostic accuracy.

METHODS

Intensive Care and Emergency Medicine residents performed CPR with or without available POCUS in simulated cardiac arrests. The primary endpoint was hands-on time. Data analysis was performed using video recordings.

RESULTS

Hands-on time was 89% (87-91) in the POCUS and 92% (89-94) in the control group (difference 3, 95% CI for difference 2-4, p < 0.001). POCUS teams had delayed defibrillator attachments (33 vs. 26 sec, p = 0.017) and first rhythm analysis (74 vs. 52 sec, p = 0.001). Available POCUS was used in 71%. Of the POCUS teams, 3 stated a POCUS-derived diagnosis, with 49 being correct and 42 followed by a correct treatment decision. Four teams made a wrong diagnosis and two made an inappropriate treatment decision.

CONCLUSIONS

POCUS during CPR resulted in lower hands-on times and delayed rhythm analysis. Correct POCUS diagnoses occurred in 52%, correct treatment decisions in 44%, and inappropriate treatment decisions in 2%. Training on POCUS during CPR should focus on diagnostic accuracy and maintenance of high-quality CPR.

Hands-On Times, Adherence to Recommendations and Variance in Execution among Three Different CPR Algorithms: A Prospective Randomized Single-Blind Simulator-Based Trial

Background: Alternative cardiopulmonary resuscitation (CPR) algorithms, introduced to improve outcomes after cardiac arrest, have so far not been compared in randomized trials with established CPR guidelines. Methods: 286 physician teams were confronted with simulated cardiac arrests and randomly allocated to one of three versions of a CPR algorithm: (1) current International Liaison Committee on Resuscitation (ILCOR) guidelines (“ILCOR”), (2) the cardiocerebral resuscitation (“CCR”) protocol (3 cycles of 200 uninterrupted chest compressions with no ventilation), or (3) a local interpretation of the current guidelines (“Arnsberg“, immediate insertion of a supraglottic airway and cycles of 200 uninterrupted chest compressions). The primary endpoint was percentage of hands-on time. Results: Median percentage of hands-on time was 88 (interquartile range (IQR) 6) in “ILCOR” teams, 90 (IQR 5) in “CCR” teams (p = 0.001 vs. “ILCOR”), and 89 (IQR 4) in “Arnsberg” teams (p = 0.032 vs. “ILCOR”; p = 0.10 vs. “CCR”). “ILCOR” teams delivered fewer chest compressions and deviated more from allocated targets than “CCR” and “Arnsberg” teams. “CCR” teams demonstrated the least within-team and between-team variance. Conclusions: Compared to current ILCOR guidelines, two alternative CPR algorithms advocating cycles of uninterrupted chest compressions resulted in very similar hands-on times, fewer deviations from targets, and less within-team and between-team variance in execution.

Does stress influence the performance of cardiopulmonary resuscitation? A narrative review of the literature

Cardiopulmonary resuscitation represents a major physical and psychological challenge for all involved health care workers because survival of the patients is closely related to the timely and accurate actions of rescuers. Consequently, rescuers may experience high levels of acute mental stress. Stress, in turn, may influence attentional resources and distractibility, which may affect the quality of resuscitation. This narrative review summarizes the current state of research concerning the influence of stress on resuscitation performance. Peer-reviewed studies retrieved in scientific databases were eligible. We found that rescuers experience high levels of stress and some associations of higher levels of stress with lower resuscitation performance. Finally, few interventional studies assessed whether interventions aiming at reducing levels of stress may have a beneficial effect on resuscitation performance, but results are variable. Although the mechanisms linking stress to performance of emergency teams are still not fully understood, factors such as individual experience and self-confidence of rescuers, gender composition and hierarchy within resuscitation teams may play an important role. This review provides a targeted overview of how stress can be defined and measured, how it may influence emergency situations such as a cardiopulmonary resuscitation, and which interventions have the potential to reduce overwhelming stress.

Effects of Bag Mask Ventilation and Advanced Airway Management on Adherence to Ventilation Recommendations and Chest Compression Fraction: A Prospective Randomized Simulator-Based Trial

The role of advanced airway management (AAM) in cardiopulmonary resuscitation (CPR) is currently debated as observational studies reported better outcomes after bag-mask ventilation (BMV), and the only prospective randomized trial was inconclusive. Adherence to CPR guidelines ventilation recommendations is unknown and difficult to assess in clinical trials. This study compared AAM and BMV with regard to adherence to ventilation recommendations and chest compression fractions in simulated cardiac arrests. A total of 154 teams of 3–4 physicians were randomized to perform CPR with resuscitation equipment restricting airway management to BMV only or equipment allowing for all forms of AAM. BMV teams ventilated 6 ± 6/min and AAM teams 19 ± 8/min (range 3–42/min; p < 0.0001 vs. BMV). 68/78 BMV teams and 23/71 AAM teams adhered to the ventilation recommendations (p < 0.0001). BMV teams had lower compression fractions than AAM teams (78 ± 7% vs. 86 ± 6%, p < 0.0001) resulting entirely from higher no-flow times for ventilation (9 ± 4% vs. 3 ± 3 %; p < 0.0001). Compared to BMV, AAM leads to significant hyperventilation and lower adherence to ventilation recommendations but favourable compression fractions. The cumulative effect of deviations from ventilation recommendations has the potential to blur findings in clinical trials.

More than experience: a post-task reflection intervention among team members enhances performance in student teams confronted with a simulated resuscitation task-a prospective randomised trial

Background

Teams that regularly step back from action and deliberately reflect on their performance and strategies show higher performance. Ad hoc emergency teams with changing team composition cannot develop such habits but may engage in short postaction reflection to discuss shortcomings of past performance and potential adaptations of their strategies for future similar tasks. This study aimed to test the effect of a short postaction self-led reflective team briefing on resuscitation performance in a simulator setting in terms of three performance parameters: hands-on time, coordination between chest compression and ventilation, and defibrillation.

Methods

We performed a randomised controlled trial including 56 ad hoc formed teams of three fourth-year medical students each. All groups performed a resuscitation task, followed by a self-guided reflective briefing, based on a general instruction (n=28 teams), or an unrelated discussion session (control condition; n=29), followed by a second resuscitation task in the same team composition.

Results

Adjusted for performance in the first task, teams in the reflection condition showed higher performance gain in the second resuscitation than teams in the control condition (6.21 percentage points (95% CI 1.31 to 11.10, p<0.001)) for basic hands-on performance; 15.0 percentage points (95% CI 2 to 28, p<0.001) for coordinative performance but non-significantly lower performance for defibrillation (-9%, 95% CI -27% to -9%, p=0.312).

Conclusion

Even very short self-led postaction reflective briefings enhance basic resuscitation performance in ad hoc groups but may not influence more complex aspects of the task. We recommend including short self-led team debriefings as part of simulator training.

Predicting team-performance and leadership in emergency situations by observing standardised operational procedures: a prospective single-blind simulator-based trial

Background

Performance of interdisciplinary teams and their leaders is crucial in acute medical care and can be monitored by observing specific events. Standardised operational procedures (SOP) are easily observable, whereas the unpredictability of medical emergencies makes performance monitoring in these situations difficult. The aim of this study was therefore to assess whether performance in emergency situations can be predicted by performance observed during an SOP.

Methods

30 intensive care unit teams composed of one staff physician (leader), one resident and three nurses performed a simulated scenario of an elective electrical cardioversion (SOP) followed by a cardiac arrest (emergency). Video recordings obtained during simulations were used for data analysis. The primary outcome was the correlation between performance scores of electrical cardioversion and performance during cardiopulmonary resuscitation (hands-on time, time to first defibrillation).

Results

None of the cardioversion performance scores significantly correlated with resuscitation performance. Leadership scores during electrical cardioversion correlated positively with leadership scores during cardiopulmonary resuscitation (r=0.365, p=0.047). Moreover, there was a positive correlation of leaders being hands-off during both electrical cardioversion and cardiopulmonary resuscitation (r=0.645, p<0.0001).

Conclusions

Team performance in SOP carried no predictive value for emergency situations. Observing teams in easily observable SOP is therefore no suitable substitute for monitoring the performance in medical emergencies. There was a between-situation consistency for specific elements of leadership.

Influence of Gender on the Performance of Cardiopulmonary Rescue Teams: A Randomized, Prospective Simulator Study

OBJECTIVES

Little is known about the influence of gender on resuscitation performance which may improve future education in resuscitation. The aim of this study was to compare female and male rescuers in regard to cardiopulmonary resuscitation and leadership performance.

DESIGN

Prospective, randomized simulator study.

SETTING

High-fidelity patient simulator center of the medical ICU, University Hospitals Basel (Switzerland).

SUBJECTS

Two hundred sixteen volunteer medical students (108 females and 108 males) of two Swiss universities in teams of three.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

We analyzed data on the group and the individual level separately. The primary outcome on the group level was the hands-on time within the first 180 seconds after the onset of the cardiac arrest. Compared with male-only teams, female-only teams showed less hands-on time (mean ± SD) (87 ± 41 vs 109 ± 33 s; p = 0.037) and a longer delay before the start of chest compressions (109 ± 77 vs 70 ± 56 s; p = 0.038). Additionally, female-only teams showed a lower leadership performance in different domains and fewer unsolicited cardiopulmonary resuscitation measures compared with male-only teams. On the individual level, which was assessed in mixed teams only, female gender was associated with a lower number of secure leadership statements (3 ± 2 vs 5 ± 3; p = 0.027). Results were confirmed in regression analysis adjusted for team composition.

CONCLUSIONS

We found important gender differences, with female rescuers showing inferior cardiopulmonary resuscitation performance, which can partially be explained by fewer unsolicited cardiopulmonary resuscitation measures and inferior female leadership. Future education of rescuers should take gender differences into account.

Short lessons in basic life support improve self-assurance in performing cardiopulmonary resuscitation

BACKGROUND

There are several reasons why resuscitation measures may lead to inferior results: difficulties in team building, delayed realization of the emergency and interruption of chest compression. This study investigated the outcome of a new form of in-hospital cardiopulmonary resuscitation (CPR) training with special focus on changes in self-assurance of potential helpers when faced with emergency situations.

METHODS

Following a 12-month period of CPR training, questionnaires were distributed to participants and non-participants. Those non-participants who intended to undergo the training at a later date served as control group.

RESULTS

The study showed that participants experienced a significant improvement in self-assurance, compared with their remembered self-assurance before the training. Their self-assurance also was significantly greater than that of the control group of non-participants.

CONCLUSION

Short lessons in CPR have an impact on the self-assurance of medical and non-medical personnel.

Two minutes CPR versus five cycles CPR prior to reanalysis of the cardiac rhythm: A prospective, randomized simulator-based trial

AIM OF THE STUDY

While the 2005 cardiopulmonary resuscitation (CPR) guidelines recommended to provide CPR for five cycles before the next cardiac rhythm check, the current 2010 guideline now recommend to provide CPR for 2 min. Our aim was to compare adherence to both targets in a simulator-based randomized trial.

METHODS

119 teams, consisting of three to four physicians each, were randomized to receive a graphical display of the simplified circular adult BLS algorithm with the instruction to perform CPR for either 2 min or five cycles 30:2. Subsequently teams had to treat a simulated unwitnessed cardiac arrest. Data analysis was performed using video-recordings obtained during simulations. The primary endpoint was adherence, defined as being within ±20% of the instructed target (i.e. 96-144s in the 2 min teams and 4-6 cycles in the fivex30:2 teams).

RESULTS

22/62 (35%) of the "two minutes" teams and 48/57 (84%) of the "five×30:2″ teams provided CPR within a range of ± 20% of their instructed target (P<0.0001). The median time of CPR prior to rhythm check was 91s and 87s, respectively, (P=0.59) with a significant larger variance (P=0.023) in the "two minutes" group.

CONCLUSIONS

This randomized simulator-based trial found better adherence and less variance to an instruction to continue CPR for five cycles before the next cardiac rhythm check compared to continuing CPR for 2 min. Avoiding temporal targets whenever possible in guidelines relating to stressful events appears advisable.

Workflow interruptions, social stressors from supervisor(s) and attention failure in surgery personnel

Workflow interruptions and social stressors among surgery personnel may cause attention failure at work that may increase rumination about work issues during leisure time. The test of these assumptions should contribute to the understanding of exhaustion in surgery personnel and patient safety. Workflow interruptions and supervisor-related social stressors were tested to predict attention failure that predicts work-related rumination during leisure time. One hundred ninety-four theatre nurses, anaesthetists and surgeons from a Swiss University hospital participated in a cross-sectional survey. The participation rate was 58%. Structural equation modelling confirmed both indirect paths from workflow interruptions and social stressors via attention failure on rumination (both p<0.05). An alternative model, assuming the reversed indirect causation-from attention failure via workflow interruptions and social stressors on rumination-could not be empirically supported. Workflow interruptions and social stressors at work are likely to trigger attention failure in surgery personnel. Work redesign and team intervention could help surgery personnel to maintain a high level of quality and patient safety and detach from work related issues to recover during leisure time.

Workflow interruptions and failed action regulation in surgery personnel

Background

Workflow interruptions during surgery may cause a threat to patient's safety. Workflow interruptions were tested to predict failure in action regulation that in turn predicts near-accidents in surgery and related health care.

Methods

One-hundred-and-thirty-three theater nurses and physicians from eight Swiss hospitals participated in a cross-sectional questionnaire survey. The study participation rate was 43%.

Results

Structural equation modeling confirmed an indirect path from workflow interruptions through cognitive failure in action regulation on near-accidents (p < 0.05). The indirect path was stronger for workflow interruptions by malfunctions and task organizational blockages compared with workflow interruptions that were caused by persons. The indirect path remained meaningful when individual differences in conscientiousness and compliance with safety regulations were controlled.

Conclusion

Task interruptions caused by malfunction and organizational constraints are likely to trigger errors in surgery. Work redesign is recommended to reduce workflow interruptions by malfunction and regulatory constraints.

Cardiopulmonary resuscitation quality: [corrected] improving cardiac resuscitation outcomes both inside and outside the hospital: a consensus statement from the American Heart Association

The "2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care" increased the focus on methods to ensure that high-quality cardiopulmonary resuscitation (CPR) is performed in all resuscitation attempts. There are 5 critical components of high-quality CPR: minimize interruptions in chest compressions, provide compressions of adequate rate and depth, avoid leaning between compressions, and avoid excessive ventilation. Although it is clear that high-quality CPR is the primary component in influencing survival from cardiac arrest, there is considerable variation in monitoring, implementation, and quality improvement. As such, CPR quality varies widely between systems and locations. Victims often do not receive high-quality CPR because of provider ambiguity in prioritization of resuscitative efforts during an arrest. This ambiguity also impedes the development of optimal systems of care to increase survival from cardiac arrest. This consensus statement addresses the following key areas of CPR quality for the trained rescuer: metrics of CPR performance; monitoring, feedback, and integration of the patient's response to CPR; team-level logistics to ensure performance of high-quality CPR; and continuous quality improvement on provider, team, and systems levels. Clear definitions of metrics and methods to consistently deliver and improve the quality of CPR will narrow the gap between resuscitation science and the victims, both in and out of the hospital, and lay the foundation for further improvements in the future.

Impact of a stress coping strategy on perceived stress levels and performance during a simulated cardiopulmonary resuscitation: a randomized controlled trial

BACKGROUND

Cardiopulmonary resuscitation (CPR) causes significant stress for the rescuers which may cause deficiencies in attention and increase distractibility. This may lead to misjudgements of priorities and delays in CPR performance, which may further increase mental stress (vicious cycle). This study assessed the impact of a task-focusing strategy on perceived stress levels and performance during a simulated CPR scenario.

METHODS

This prospective, randomized-controlled trial was conducted at the simulator-center of the University Hospital Basel, Switzerland. A total of 124 volunteer medical students were randomized to receive a 10 minute instruction to cope with stress by loudly posing two task-focusing questions ("what is the patient's condition?", "what immediate action is needed?") when feeling overwhelmed by stress (intervention group) or a control group. The primary outcome was the perceived levels of stress and feeling overwhelmed (stress/overload); secondary outcomes were hands-on time, time to start CPR and number of leadership statements.

RESULTS

Participants in the intervention group reported significantly less stress/overload levels compared to the control group (mean difference: -0.6 (95% CI -1.3, -0.1), p=0.04). Higher stress/overload was associated with less hands-on time. Leadership statements did not differ between groups, but the number of leadership statements did relate to performance. Hands-on time was longer in the intervention- group, but the difference was not statistically significant (difference 5.5 (95% CI -3.1, 14.2), p=0.2); there were no differences in time to start CPR (difference -1.4 (95% CI -8.4, 5.7), p=0.71).

CONCLUSIONS

A brief stress-coping strategy moderately decreased perceived stress without significantly affecting performance in a simulated CPR. Further studies should investigate more intense interventions for reducing stress.

TRIAL REGISTRATION

NCT01645566.

A review of chest compression interruptions during out-of-hospital cardiac arrest and strategies for the future

BACKGROUND

It has been known for many years that interrupting chest compressions during cardiopulmonary resuscitation (CPR) from out-of-hospital cardiac arrest (OHCA) leads directly to negative outcomes. Interruptions in chest compressions occur for a variety of reasons, including provider fatigue and switching of compressors, performance of ventilations, placement of invasive airways, application of CPR devices, pulse and rhythm determinations, vascular access placement, and patient transfer to the ambulance. Despite significant resuscitation guideline changes in the last decade, several studies have shown that chest compressions are still frequently interrupted or poorly executed during OHCA resuscitations. Indeed, the American Heart Association has made great strides to improve outcomes by placing a greater emphasis on uninterrupted chest compressions. As highly trained health care providers, why do we still interrupt chest compressions? And are any of these interruptions truly necessary?

OBJECTIVES

This article aims to review the clinical effects of both high-quality chest compressions and the effects that interruptions during chest compressions have clinically on patient outcomes.

DISCUSSION

The causes of chest compression interruptions are explored from both provider and team perspectives. Current and future methods are introduced that may prompt the provider to reduce unnecessary interruptions during chest compressions.

CONCLUSIONS

New and future technologies may provide promising results, but the greatest benefit will always be a well-directed, organized, and proactive team of providers performing excellent-quality and continuous chest compressions during CPR.

Effects of team coordination during cardiopulmonary resuscitation: a systematic review of the literature

PURPOSE

The purpose of this study is to identify and evaluate to what extent the literature on team coordination during cardiopulmonary resuscitation (CPR) empirically confirms its positive effect on clinically relevant medical outcome.

MATERIAL AND METHODS

A systematic literature search in PubMed, MEDLINE, PsycINFO and CENTRAL databases was performed for articles published in the last 30 years.

RESULTS

A total of 63 articles were included in the review. Planning, leadership, and communication as the three main interlinked coordination mechanisms were found to have effect on several CPR performance markers. A psychological theory-based integrative model was expanded upon to explain linkages between the three coordination mechanisms.

CONCLUSIONS

Planning is an essential element of leadership behavior and is primarily accomplished by a designated team leader. Communication affects medical performance, serving as the vehicle for the transmission of information and directions between team members. Our findings also suggest teams providing CPR must continuously verbalize their coordination plan in order to effectively structure allocation of subtasks and optimize success.

Effects of pre-training using serious game technology on CPR performance--an exploratory quasi-experimental transfer study

BACKGROUND

Multiplayer virtual world (MVW) technology creates opportunities to practice medical procedures and team interactions using serious game software. This study aims to explore medical students' retention of knowledge and skills as well as their proficiency gain after pre-training using a MVW with avatars for cardio-pulmonary resuscitation (CPR) team training.

METHODS

Three groups of pre-clinical medical students, n = 30, were assessed and further trained using a high fidelity full-scale medical simulator: Two groups were pre-trained 6 and 18 months before assessment. A reference control group consisting of matched peers had no MVW pre-training. The groups consisted of 8, 12 and 10 subjects, respectively. The session started and ended with assessment scenarios, with 3 training scenarios in between. All scenarios were video-recorded for analysis of CPR performance.

RESULTS

The 6 months group displayed greater CPR-related knowledge than the control group, 93 (±11)% compared to 65 (±28)% (p < 0.05), the 18 months group scored in between (73 (±23)%).At start the pre-trained groups adhered better to guidelines than the control group; mean violations 0.2 (±0.5), 1.5 (±1.0) and 4.5 (±1.0) for the 6 months, 18 months and control group respectively. Likewise, in the 6 months group no chest compression cycles were delivered at incorrect frequencies whereas 54 (±44)% in the control group (p < 0.05) and 44 (±49)% in 18 months group where incorrectly paced; differences that disappeared during training.

CONCLUSIONS

This study supports the beneficial effects of MVW-CPR team training with avatars as a method for pre-training, or repetitive training, on CPR-skills among medical students.