Outcomes of Cardiac Arrest in Residential Care Homes for the Elderly in Hong Kong

Increasing neurologically intact survival after out-of-hospital cardiac arrest among elderly: Singapore Experience

Objectives

With more elderly presenting with Out-of-Hospital Cardiac Arrests (OHCAs) globally, neurologically intact survival (NIS) should be the aim of resuscitation. We aimed to study the trend of OHCA amongst elderly in a large Asian registry to identify if age is independently associated with NIS and factors associated with NIS.

Methods

All adult OHCAs aged ≥18 years attended by emergency medical services (EMS) from April 2010 to December 2019 in Singapore was extracted from the Pan-Asian Resuscitation Outcomes Study (PAROS) registry. Cases pronounced dead at scene, non-EMS transported, traumatic OHCAs and OHCAs in ambulances were excluded. Patient characteristics and outcomes were compared across four age categories (18-64, 65-79, 80-89, ≥90). Multivariable logistic regression analysis determined the factors associated with NIS.

Results

19,519 eligible cases were analyzed. OHCA incidence increased with age almost doubling in octogenarians (from 312/100,000 in 2011 to 652/100,000 in 2019) and tripling in those ≥90 years (from 458/100,000 in 2011 to 1271/100,000 in 2019). The proportion of patients with NIS improved over time for the 18-64, 65-79- and 80-89-years age groups, with the greatest improvement in the youngest group. NIS decreased with each increasing year of age and minute of response time. NIS increased in the arrests of presumed cardiac etiology, witnessed and bystander CPR.

Conclusions

Survival with good outcomes has increased even amongst the elderly. Regardless of age, NIS is possible with good-quality CPR, highlighting its importance. End-of-life planning is a complex yet necessary decision that requires qualitative exploration with elderly, their families and care providers.

Out-of-hospital cardiac arrest in residential aged care facilities is independently associated with lower survival in Perth, Australia

Aim

To compare out-of-hospital cardiac arrest (OHCA) characteristics and outcomes between people aged ≥ 65 years who arrested in a residential aged care facility (RACF) versus a private residence in Perth, Australia.

Methods

We undertook a retrospective cohort study of OHCA cases attended by emergency medical services (EMS) in Perth, January 2018-December 2021. OHCA patient and event characteristics and survival outcomes were compared via univariate analysis. Multivariable logistic regression was used to investigate the relationship between residency type and (i) return of spontaneous circulation (ROSC) at emergency department (ED) and (ii) 30-day survival.

Results

A total of 435 OHCA occurred in RACFs versus 3,395 in private residences. RACF patients were significantly older (median age: 86 [IQR 79, 91] vs 78 [71, 85] years; p < 0.001), more commonly female (50.1% vs 36.8%; p < 0.001), bystander-witnessed arrests (34.9% vs 21.5%; p < 0.001), received bystander cardiopulmonary resuscitation (42.1% vs 28.6%; p < 0.001), had less shockable first monitored rhythms (4.0% vs 8.1%; p = 0.002) and more frequently had a "do not resuscitate" order identified (46.0% vs 13.6%; <0.001). Among those with EMS-attempted resuscitation or with defibrillation before EMS arrival, ROSC at ED and 30-day survival were significantly lower in the RACF group (6.2% vs 18.9%; p < 0.001 and 1.9% vs 7.7%; p < 0.001). The adjusted odds of ROSC at ED (aOR: 0.22 [95%CI: 0.10, 0.46]) and 30-day survival (aOR: 0.20 [95%CI 0.05, 0.92]) were significantly lower for RACF residents.

Conclusion

RACF residency was an independent predictor of lower survival from OHCA, highlighting the importance of end-of-life planning for RACF residents.

A two-point strategy to clarify prognosis in >80 year olds experiencing out of hospital cardiac arrest

BACKGROUND

The global population is aging, with the number of ≥80-year-olds projected to triple over the next 30 years. Rates of out-of-hospital cardiac arrest (OHCA) are also increasing within this age group.

METHODS

The Victorian Ambulance Cardiac Arrest Registry was utilised to identify OHCAs in patients aged ≥80 years between 2002-2021. Predictors of survival to discharge were defined and a prognostic score derived from this cohort.

RESULTS

77,628 patients experienced OHCA of whom 25,269 (32.6%) were ≥80 years (80-90 years = 18,956; 90-100 years = 6,148; >100 years = 209). The number of patients ≥80 years increased over time both absolutely (p = 0.002) and proportionally (p = 0.028). 619 (2.4%) patients survived to discharge without change over time. Older ages had no difference in witnessed OHCA status but were less likely to have shockable rhythm (OR 0.50 (95% CI 0.44-0.57) for 90-100-year-olds, OR 0.28 (95% CI 0.12-0.63) for 90-100-year-olds). If OHCA was witnessed and there was a shockable rhythm then survival was 14%; if one factor was present survival was 5-6% and if neither factor was present, survival was 0.09%. These survival rates enabled derivation of a simplified prognostic assessment score - the '15/5/0' score - highly comparable to a previously-published American cohort.

CONCLUSIONS

Elderly OHCA rates have increased to one-third of caseload. The most important factors predicting survival were whether the OHCA was witnessed and there was a shockable rhythm. We present a simple two-point '15/5/0' prognostic score defining which patients will gain most from advanced resuscitative measures.

Transferring nursing home residents to emergency departments by emergency physician-staffed emergency medical services: missed opportunities to avoid inappropriate care?

BACKGROUND

The decision to transfer a nursing home (NH) resident to an emergency department (ED) is multifactorial and challenging but many of the emergency physician-staffed emergency medical service (EP-EMS) interventions and ED transfers are probably inappropriate.

METHODS

We conducted a retrospective, cross-sectional study in three EP-EMSs in Belgium over a period of three years. We registered indicators that are potentially associated with inappropriate transfers: patient characteristics, availability of written do not resuscitate (DNR) orders or treatment restrictions, involvement of a general practitioner (GP) and availability of transfer notes. We also explored the association between age, the Charlson Comordity Index (CCI), polypharmacy, dementia, and the availability of DNR documents.

RESULTS

We registered 308 EP-EMS interventions in NH residents. In 98% the caller was a health-care professional. In 75% there was no GP present and 40% had no transfer note. Thirty-two percentage of the patients had dementia, 45% had more than two comorbidities and 68% took five medications or more. In 6% cardiopulmonary resuscitation was performed. DNR orders were available in 25%. Eighty-eight percentage of the NH residents were transferred to the ED. Forty-four percent had a CCI >5. In patients of ≥90 years, with a CCI >5, with dementia and with polypharmacy, DNR orders were not available in 81%, 67%%,and 69%, respectively.

CONCLUSIONS

Improved EMS dispatch centre-NH caller interaction, more involvement of GP's, higher availability of DNR orders and better communication between GPs/NHs and EP-EMS could prevent inappropriate interventions, futile prehospital aactions,and ED transfers.

Goals of Care Conversations in Long-Term Care during the First Wave of the COVID-19 Pandemic

Goals of care discussions typically focus on decision maker preference and underemphasize prognosis and outcomes related to frailty, resulting in poorly informed decisions. Our objective was to determine whether navigated care planning with nursing home residents or their decision makers changed care plans during the first wave of the COVID-19 pandemic. The MED-LTC virtual consultation service, led by internal medicine specialists, conducted care planning conversations that balanced information-giving/physician guidance with resident autonomy. Consultation included (1) the assessment of co-morbidities, frailty, health trajectory, and capacity; (2) in-depth discussion with decision makers about health status and expected outcomes; and (3) co-development of a care plan. Non-parametric tests and logistic regression determined the significance and factors associated with a change in care plan. Sixty-three residents received virtual consultations to review care goals. Consultation resulted in less aggressive care decisions for 52 residents (83%), while 10 (16%) remained the same. One resident escalated their care plan after a mistaken diagnosis of dementia was corrected. Pre-consultation, 50 residents would have accepted intubation compared to 9 post-consultation. The de-escalation of care plans was associated with dementia, COVID-19 positive status, and advanced frailty. We conclude that during the COVID-19 pandemic, a specialist-led consultation service for frail nursing home residents significantly influenced decisions towards less aggressive care.

Type of bystander and rate of cardiopulmonary resuscitation in nursing home patients suffering out-of-hospital cardiac arrest

AIM

We investigated bystander cardiopulmonary resuscitation (CPR) provision rate and survival outcomes of out-of-hospital cardiac arrest (OHCA) patients in nursing homes by bystander type.

METHODS

A population-based observational study was conducted for nursing home OHCAs during 2013-2018. The exposure was the bystander type: medical staff, non-medical staff, or family. The primary outcome was bystander CPR provision rate; the secondary outcomes were prehospital return of spontaneous circulation (ROSC) and survival to discharge. Multivariable logistic regression analysis which corrected for various demographic and clinical characteristics evaluated bystander type impact on study outcomes. Bystander CPR rate trend was investigated by bystander type.

RESULTS

Of 8281 eligible OHCA patients, 26.0%, 70.8%, and 3.2% cases were detected by medical staff, non-medical staff, and family, respectively. Provision rate of bystander CPR was 69.9% and rate of bystander defibrillation was 0.4% in total. Bystander CPR was provided by medical staff, non-medical staff, and families in 74.8%, 68.9%, and 52.1% respectively. Total survival rate was 2.2%, out of which, 3.3% was for medical staff, 3.2% for non-medical staff, and 0.6% for family. Compared to the results of detection by medical staff, the adjusted odds ratios (95% CIs) for provision of bystander CPR were 0.56 (0.49-0.63) for detection by non-medical staff and 0.33 (0.25-0.44) for detection by family. The bystander CPR rates of all three groups increased over time, and among them, the medical staff group increased the most. For prehospital ROSC and survival to discharge, no significant differences were observed according to bystander type.

CONCLUSION

Although OHCA was detected more often by non-medical staff, they provided bystander CPR less frequently than the medical staff did. To improve survival outcome of nursing home OHCA, bundle interventions including increasing the usage of automated external defibrillators and expanding CPR training for non-medical staff in nursing home are needed.

Evaluation of prognostic prediction models for out-of-hospital cardiac arrest

Introduction:

Accurate prognostic prediction of out-of-hospital cardiac arrest is challenging but important for the emergency team and patient’s family members. A number of prognostic prediction models specifically designed for out-of-hospital cardiac arrest are developed and validated worldwide.

Objective:

This narrative review provides an overview of the prognostic prediction models out-of-hospital cardiac arrest patients for use in the emergency department.

Discussion:

Out-of-hospital cardiac arrest prognostic prediction models are potentially useful in clinical, administrative and research settings. Development and validation of such models require prehospital and hospital predictor and outcome variables which are best in the standardised Utstein Style. Logistic regression analysis is traditionally employed for model development but machine learning is emerging as the new tool. Examples of such models available for use in the emergency department include ROSC After Cardiac Arrest, CaRdiac Arrest Survival Score, Utstein-Based Return of Spontaneous Circulation, Out-of-Hospital Cardiac Arrest, Cardiac Arrest Hospital Prognosis and Cardiac Arrest Survival Score. The usefulness of these models awaits future studies.

The role of age in post-cardiac arrest therapy in an elderly patient population

Aim

We investigated the effect of age on post-cardiac arrest treatment outcomes in an elderly population, based on a local database and a systemic review of the literature.

Methods

Data were collected retrospectively from medical charts and reports. Sixty-one comatose patients, cooled to 32-34 °C for 24 h, were categorized into three groups: younger group (≤65 years), older group (66-75 years), and very old group (>75 years). Circumstances of cardiopulmonary resuscitation (CPR), patients' characteristics, post-resuscitation treatment, hemodynamic monitoring, neurologic outcome and survival were compared across age groups. Kruskal-Wallis test, Chi-square test and binary logistic regression (BLR) were applied. In addition, a literature search of PubMed/Medline database was performed to provide a background.

Results

Age was significantly associated with having a cardiac arrest on a monitor and a history of hypertension. No association was found between age and survival or neurologic outcome. Age did not affect hemodynamic parameter changes during target temperature management (TTM), except mean arterial pressure (MAP). Need of catecholamine administration was the highest among very old patients. During the literature review, seven papers were identified. Most studies had a retrospective design and investigated interventions and outcome, but lacked unified age categorization. All studies reported worse survival in the elderly, although old survivors showed a favorable neurologic outcome in most of the cases.

Conclusion

There is no evidence to support the limitation of post-cardiac arrest therapy in the aging population. Furthermore, additional prospective studies are needed to investigate the characteristics and outcome of post-cardiac arrest therapy in this patient group.

Cardiopulmonary Resuscitation in Adults Over 80: Outcome and the Perception of Appropriateness by Clinicians

OBJECTIVES

To determine the prevalence of clinician perception of inappropriate cardiopulmonary resuscitation (CPR) regarding the last out-of-hospital cardiac arrest (OHCA) encountered in an adult 80 years or older and its relationship to patient outcome.

DESIGN

Subanalysis of an international multicenter cross-sectional survey (REAPPROPRIATE).

SETTING

Out-of-hospital CPR attempts registered in Europe, Israel, Japan, and the United States in adults 80 years or older.

PARTICIPANTS

A total of 611 clinicians of whom 176 (28.8%) were doctors, 123 (20.1%) were nurses, and 312 (51.1%) were emergency medical technicians/paramedics.

RESULTS AND MEASUREMENTS

The last CPR attempt among patients 80 years or older was perceived as appropriate by 320 (52.4%) of the clinicians; 178 (29.1%) were uncertain about the appropriateness, and 113 (18.5%) perceived the CPR attempt as inappropriate. The survival to hospital discharge for the "appropriate" subgroup was 8 of 265 (3.0%), 1 of 164 (.6%) in the "uncertain" subgroup, and 2 of 107 (1.9%) in the "inappropriate" subgroup (P = .23); 503 of 564 (89.2%) CPR attempts involved non-shockable rhythms. CPR attempts in nursing homes accounted for 124 of 590 (21.0%) of the patients and were perceived as appropriate by 44 (35.5%) of the clinicians; 45 (36.3%) were uncertain about the appropriateness; and 35 (28.2%) perceived the CPR attempt as inappropriate. The survival to hospital discharge for the nursing home patients was 0 of 107 (0%); 104 of 111 (93.7%) CPR attempts involved non-shockable rhythms. Overall, 36 of 543 (6.6%) CPR attempts were undertaken despite a known written do not attempt resuscitation decision; 14 of 36 (38.9%) clinicians considered this appropriate, 9 of 36 (25.0%) were uncertain about its appropriateness, and 13 of 36 (36.1%) considered this inappropriate.

CONCLUSION

Our findings show that despite generally poor outcomes for older patients undergoing CPR, many emergency clinicians do not consider these attempts at resuscitation to be inappropriate. A professional and societal debate is urgently needed to ensure that first we do not harm older patients by futile CPR attempts. J Am Geriatr Soc 68:39-45, 2019.