scholarly journals Evaluation of a revised resuscitation protocol for out-of-hospital cardiac arrest patients due to COVID-19 safety protocols: a single-center retrospective study in Japan

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kenji Kandori ◽  
Yohei Okada ◽  
Wataru Ishii ◽  
Hiromichi Narumiya ◽  
Ryoji Iizuka

AbstractThis study aimed to determine the association between cardiopulmonary resuscitation (CPR) under the coronavirus 2019 (COVID-19) safety protocols in our hospital and the prognosis of out-of-hospital cardiac arrest (OHCA) patients, in an urban area, where the prevalence of COVID-19 infection is relatively low. This was a single-center, retrospective, observational, cohort study conducted at a tertiary critical care center in Kyoto City, Japan. Adult OHCA patients arriving at our hospital under CPR between January 1, 2019, and December 31, 2020 were included. Our hospital implemented a revised resuscitation protocol for OHCA patients on April 1, 2020 to prevent COVID-19 transmission. This study defined the conventional CPR period as January 1, 2019 to March 31, 2020, and the COVID-19 safety protocol period as April 1, 2020 to December 31, 2020. Throughout the prehospital and in-hospital settings, resuscitation protocols about wearing personal protective equipment and airway management were revised in order to minimize the risk of infection; otherwise, the other resuscitation management had not been changed. The primary outcome was hospitalization survival. The secondary outcomes were return of spontaneous circulation after hospital arrival and 1-month survival after OHCA occurrence. The adjusted odds ratios with 95% confidence intervals (CI) were calculated for outcomes to compare the two study periods, and the multivariable logistic model was used to adjust for potential confounders. The study analyzed 443 patients, with a median age of 76 years (65–85), and included 261 men (58.9%). The percentage of hospitalization survivors during the entire research period was 16.9% (75/443 patients), with 18.7% (50/267) during the conventional CPR period and 14.2% (25/176) during the COVID-19 safety protocol period. The adjusted odds ratio for hospitalization survival during the COVID-19 safety protocol period was 0.61 (95% CI 0.32–1.18), as compared with conventional CPR. There were no cases of COVID-19 infection among the staff involved in the resuscitation in our hospital. There was no apparent difference in hospitalization survival between the OHCA patients resuscitated under the conventional CPR protocol compared with the current revised protocol for controlling COVID-19 transmission.

2021 ◽  
Author(s):  
Kenji Kandori ◽  
Yohei Okada ◽  
Wataru Ishii ◽  
Hiromichi Narumiya ◽  
Ryoji Iizuka

Abstract Background: This study aimed to determine the association between cardiopulmonary resuscitation (CPR) under the coronavirus 2019 (COVID-19) safety protocols in our hospital and the prognosis of out-of-hospital cardiac arrest (OHCA) patients, in an urban area tertiary critical care center, where the prevalence of COVID-19 infection is relatively low.Methods: This was a single-center, retrospective, observational, cohort study conducted at a tertiary critical care center in Kyoto City, Japan. Adult OHCA patients were included who were admitted to our emergency department while still in cardiac arrest at hospital arrival between January 1, 2019, and December 31, 2020. Our hospital implemented a revised resuscitation protocol for OHCA patients on April 1, 2020 to prevent COVID-19 disease transmission. This study defined the conventional CPR period as January 1, 2019 to March 31, 2020, and the COVID-19 safety protocol period as April 1, 2020 to December 31, 2020. The primary outcome was hospitalization survival. The secondary outcomes were return of spontaneous circulation after hospital admission and 1-month survival after OHCA occurrence. The adjusted odds ratios with 95% confidence intervals (CI) were calculated for outcomes to compare the two study periods, and the multivariable logistic model was used to adjust for six variables: age, presence of witness, presence of bystander CPR, initial cardiac rhythm at the scene, call–hospital interval, and the first documented cardiac rhythm at hospital arrival.Results: The study analyzed 443 patients, with a median age of 76 years (65–85), and included 261 men (58.9%). The percentage of hospitalization survivors during the entire research period was 16.9% (75/443 patients), with 18.7% (50/267) during the conventional CPR period and 14.2% (25/176) during the COVID-19 safety protocol period. The adjusted odds ratio for hospitalization survival during the COVID-19 safety protocol period was 0.61 (95% CI, 0.32–1.18), as compared with conventional CPR.Conclusions: There was no apparent difference in hospitalization survival between the OHCA patients resuscitated under the conventional CPR protocol compared with the current revised protocol for controlling COVID-19 disease transmission.


Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Sarah M Perman ◽  
Shelby Shelton ◽  
Stacie L Daugherty ◽  
Edward Havranek

Background: Previous studies have shown that comatose survivors of cardiac arrest awaken approximately 3 days after return of spontaneous circulation (ROSC) however, variability in time to awakening is frequently observed. Recent data has shown that women metabolize drugs (sedatives and paralytics) differently than men. It is unknown if there are sex based differences in time to awakening for comatose survivors of cardiac arrest, and if this phenomenon might be affected by differences in withdrawal of life sustaining therapy (WLST). Objective: To determine if comatose women have different times to awakening after resuscitation from cardiac arrest. Methods: We analyzed 327 consecutive charts from a single center registry of all out of hospital cardiac arrest patients who had return of spontaneous circulation but remained comatose, cared for at an urban academic tertiary care hospital. Patient demographic and arrest characteristics were abstracted. We identified day of awakening for comatose survivors by abstracting day when Glasgow coma motor score was 6 as documented in nursing flowsheets. Time to withdrawal of life sustaining therapy was also abstracted for the cohort that did not awaken. Patients were excluded from analysis if they did not awaken or if they died for reasons other than WLST. Results: Twenty-eight percent of patients woke prior to hospital discharge and 43.4% underwent withdrawal of life sustaining therapy. Women made up 39.5% of the total cohort, 40% of the awakened cohort and 41% of the WLST cohort. Women had earlier day of awakening in comparison to men (day 2 (2, 4) vs. day 4 (2,5), p=0.0036), and also earlier time to WLST after ROSC than men (59 hours (26, 131) vs. 64 hours (22, 135), p=NS). Conclusion: In this single center cohort, there was a difference in time to awakening between men and women. How time to awakening might differ between the sexes with guideline concordant time to WLST is unknown. Further research is necessary to explore the role of therapeutic interventions and differing physiology between men and women as it applies to time to awakening.


Circulation ◽  
2021 ◽  
Vol 144 (Suppl_2) ◽  
Author(s):  
Mads Christian Tofte Gregers ◽  
Linn Andelius ◽  
Carolina Malta Hansen ◽  
Astrid Rolin Kragh ◽  
Christian Torp-Pedersen ◽  
...  

Introduction: Multiple citizen responder (CR) programs worldwide which dispatch laypersons to out-of-hospital cardiac arrest (OHCA) to perform cardiopulmonary resuscitation (CPR) and use of automated external defibrillators (AEDs) were affected by the COVID-19 outbreak in 2020, but little is known about how the pandemic affected CR activation and initiation of bystander CPR and defibrillation. In Denmark, the CR program continued to run during lockdown but with the recommendation to perform chest-compression-only CPR in contrast to standard CPR including ventilations. We hypothesized that bystander interventions as CPR and AED usage decreased during the first COVID-19 lockdown in two regions of Denmark in the spring of 2020. Methods: All OHCAs from January 1, 2020 to June 30, 2020 with CR activation from the Danish Cardiac Arrest Registry and the National Citizen Responder database. Bystander CPR, AED usage, and CRs’ alarm acceptance rate during the national lockdown from March 11, 2020 to April 20, 2020 were compared with the non-lockdown period from January 1, 2020 to March 10, 2020 and from April 21 to June 30, 2020. Results: A total of 6,120 CRs were alerted in 443 (23/100.000 inhabitants) cases of presumed OHCA of which 256 (58%) were confirmed cardiac arrests. Bystander CPR remained equally high in the lockdown period compared with non-lockdown period (99% vs. 92%, p=0.07). Likewise, there was no change in bystander defibrillation (9% vs. 14%, p=0.4). There was a slight increase in the number of CRs who accepted an alarm (7 per alarm, IQR 4) during lockdown compared with non-lockdown period (6 per alarm, IQR 4), p=0.0001. The proportion of patients achieving return of spontaneous circulation at hospital arrival was also unchanged (lockdown 23% vs non-lockdown 23%, p=1.0) (Table 1). Conclusion: Bystander initiated resuscitation rates did not change during the first COVID-19 lockdown in Denmark for OHCAs where CRs were activated through a smartphone app.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Tasha Hanuschak ◽  
Steven Brooks ◽  
Laurie Morrison ◽  
Paul Peng ◽  
Cathy Zhan

Introduction: Evidence for the effectiveness of coronary angiography after out-of-hospital cardiac arrest (OHCA) is conflicting. Our objective was to evaluate the association between receiving coronary angiography within 72 hours of hospital arrival and survival with favorable neurologic outcome. Methods: This was a population-based retrospective cohort study of consecutive cases of adult OHCA transported to and treated at 28 hospitals in Southern Ontario between March 1, 2010 and December 31, 2014. We included patients with atraumatic OHCA, who achieved return of spontaneous circulation, and were alive 6 hours after hospital arrival. Multi-level logistic regression was used to measure the association between early coronary angiography and neurologically intact survival (Modified Rankin Score 0-2), while controlling for potential confounders and clustered data. We controlled for age, sex, initial cardiac rhythm, witness status, bystander resuscitation, EMS response time, prehospital return of spontaneous circulation, location of arrest, daytime presentation, neurologic status at hospital arrival, STEMI status, cardiac history, initiation of therapeutic hypothermia, hospital size and type, and hospital annual cardiac arrest volume. Results: During the period of study, 2678 consecutive OHCA patients met the inclusion criteria. The mean age was 66(±16), 31.7% were female, 54.1% had a bystander witnessed arrest, 35.2% received bystander CPR, 45.9% had a shockable initial rhythm, 30.1% had ST elevation on the first post arrest ECG, and 32.4% received coronary angiography. Receiving coronary angiography was strongly associated with neurologically intact survival (OR 2.30, CI95 1.69-3.15) and survival (OR 2.08, CI95 1.53-2.82). A similar association was observed in the subgroup of patients without STEMI (OR 3.24, CI95 2.16-4.87 and OR 2.66, CI95 1.78-3.99, respectively). Conclusions: Neurologically intact survival among post cardiac arrest patients may be improved with coronary angiography, particularly for patients without STEMI. This observation should be confirmed with future randomized controlled studies.


2020 ◽  
Author(s):  
Yohei Okada ◽  
Takeyuki Kiguchi ◽  
Taro Irisawa ◽  
Kazuhisa Yoshiya ◽  
Tomoki Yamada ◽  
...  

Abstract Background:There is little information onthe predictive accuracy of commonly used predictors, such as lactate,pH or serum potassium for the survival among out-of-hospital cardiac arrest (OHCA) patients with hypothermia. This studyaimed to identify the predictive accuracy of these biomarkers forsurvival among OHCA patients with hypothermia.Methods: In this retrospective study, we analyzed the data from a multicenter, prospective nationwide registry among OHCA patients transported to emergency departments in Japan (the JAAM-OHCA Registry). We included all adult (≥18 years) OHCA patients with hypothermia (≤32.0°C)who were registeredfrom June 2014 to December 2017and whose blood test results on hospital arrival were recorded. We calculated the predictive accuracy of pH and lactate for 1-month survival.Results: Of the 34,754 patients in the JAAM-OHCA database, we included 754 patients from 66 hospitals. The 1-monthsurvival was 5.8% (44/754). The areas under the curve of the predictors were as follows: pH 0.829[0.767–0.877] and lactate 0.843[0.793–0.882]. On setting the cutoff points of 6.9 in pH, and 120 mg/dL (13.3 mmol/L) in lactate, the predictors had a high sensitivity (lactate: 0.91, and pH 0.91) and a low LR- (lactate: 0.14 and pH 0.13), which are suitable to rule-out 1-month survival.Conclusion: Among adult OHCA patients with hypothermia, pH 6.9 and lactate 120 mg/dLcan predictivelyrule out 1-month survival.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Pedro Freire Jorge ◽  
Rohan Boer ◽  
Rene A. Posma ◽  
Katharina C. Harms ◽  
Bart Hiemstra ◽  
...  

Abstract Objective Lactate has been shown to be preferentially metabolized in comparison to glucose after physiological stress, such as strenuous exercise. Derangements of lactate and glucose are common after out-of-hospital cardiac arrest (OHCA). Therefore, we hypothesized that lactate decreases faster than glucose after return-to-spontaneous-circulation (ROSC) after OHCA. Results We included 155 OHCA patients in our analysis. Within the first 8 h of presentation to the emergency department, 843 lactates and 1019 glucoses were available, respectively. Lactate decreased to 50% of its initial value within 1.5 h (95% CI [0.2–3.6 h]), while glucose halved within 5.6 h (95% CI [5.4–5.7 h]). Also, in the first 8 h after presentation lactate decreases more than glucose in relation to their initial values (lactate 72.6% vs glucose 52.1%). In patients with marked hyperlactatemia after OHCA, lactate decreased expediently while glucose recovered more slowly, whereas arterial pH recovered at a similar rapid rate as lactate. Hospital non-survivors (N = 82) had a slower recovery of lactate (P = 0.002) than survivors (N = 82). The preferential clearance of lactate underscores its role as a prime energy substrate, when available, during recovery from extreme stress.


Author(s):  
Yi-Rong Chen ◽  
Chi-Jiang Liao ◽  
Han-Chun Huang ◽  
Cheng-Han Tsai ◽  
Yao-Sing Su ◽  
...  

High-quality cardiopulmonary resuscitation (CPR) is a key element in out-of-hospital cardiac arrest (OHCA) resuscitation. Mechanical CPR devices have been developed to provide uninterrupted and high-quality CPR. Although human studies have shown controversial results in favor of mechanical CPR devices, their application in pre-hospital settings continues to increase. There remains scant data on the pre-hospital use of mechanical CPR devices in Asia. Therefore, we conducted a retrospective cohort study between September 2018 and August 2020 in an urban city of Taiwan to analyze the effects of mechanical CPR devices on the outcomes of OHCA; the primary outcome was attainment of return of spontaneous circulation (ROSC). Of 552 patients with OHCA, 279 received mechanical CPR and 273 received manual CPR, before being transferred to the hospital. After multivariate adjustment for the influencing factors, mechanical CPR was independently associated with achievement of any ROSC (OR = 1.871; 95%CI:1.195–2.930) and sustained (≥24 h) ROSC (OR = 2.353; 95%CI:1.427–3.879). Subgroup analyses demonstrated that mechanical CPR is beneficial in shorter emergency medical service response time (≤4 min), witnessed cardiac arrest, and non-shockable cardiac rhythm. These findings support the importance of early EMS activation and high-quality CPR in OHCA resuscitation.


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