The relationship between hospital capacity characteristics and emergency department volumes in Korea

Governmental designation of emergency medical institutes: 30 days mortality by types of designation

BACKGROUND

In 2000, the South Korean government introduced a program in emergency medical institutions throughout the country to establish effective management system for emergency patients. The aim of this study was is to investigate the effectiveness of this program for emergency patients and establish evidence for more effective strategy by comparing the relationship between types of emergency medical center and 30 day mortality after hospitalization in inpatients with cerebrovascular and cardiovascular diseases.

METHODS

We used National Health Insurance claim data (n = 111,741) from 115 hospitals during 2010-2013 to analyze readmissions within 30 days after hospitalization due to cerebrovascular and cardiovascular diseases. We performed χ2 tests, analysis of variance and logistic regression analysis using generalized estimating equation (GEE) modeling to investigate associations with 30 day mortality after hospitalization.

RESULTS

Deaths within 30 days of hospitalization due to cerebrovascular and cardiovascular diseases were 6.5%. Regional emergency medical center and localized emergency medical center had lower risk in 30 days mortality after hospitalization than localized emergency medical agency (regional emergency medical center = OR: 0.71, 95 CI: 0.60-0.84; localized emergency medical center = OR: 0.81, 95% CI: 0.72-0.90; ref. = localized emergency medical agency). In addition, reduction in 30 days mortality by types of emergency medical institutes was more highly associated in cerebrovascular diseases than cardiovascular diseases.

CONCLUSIONS

Government designated higher level emergency medical institutes had better outcomes in emergency medical care than localized emergency medical agencies. Thus, health policy makers have to consider optimal reimbursement in the field of emergency medicine.

Understanding hospital and emergency department congestion: an examination of inpatient admission trends and bed resources

Objective:

Patients in the emergency department (ED) who have been admitted to hospital (inpatient “boarders”) are associated with ED overcrowding. They are also a symptom of a hospital-wide imbalance between demand and supply of resources. We analyzed the trends of inpatient admissions, ED boarding volumes, lengths of stay and bed resources of 3 major admitting services at our teaching institution.

Methods:

We used hospital databases from Jan. 1, 2004, to Dec. 31, 2007, to analyze ED visits that resulted in admission to hospital.

Results:

During the study period, 21 986 ED patients were admitted to hospital. The percentage of cancer-related admissions to the oncology admitting service decreased from 48% in 2004 to 24% in 2007, and admissions to general internal medicine (GIM) increased nearly 2-fold, from 28% in 2004 to 54% in 2007. In addition, GIM admitted about 10% more myocardial infarction and heart failure patients than did cardiology. General internal medicine constituted the majority of ED boarders and had a median boarding length of stay of approximately 15 hours. Inpatient beds on oncology and cardiology services remained static.

Conclusion:

Without bed capacity to admit more patients, our specialty services relied on GIM to serve as a safety net. At the same time, GIM was cited as a main source of ED congestion as their patients occupied more ED beds for longer periods than any other admitting service. The data presented in this study has helped effect positive change within our institution. Other hospitals running at or near capacity and faced with similar ED congestion may apply the methods we used in this study to analyze the cause and nature of their situation.

The impact of implementing a 24/7 open trauma bed protocol in the surgical intensive care unit on throughput and outcomes

BACKGROUND

Increased emergency department (ED) length of stay (LOS) has been associated with increased mortality in trauma patients. In 2010, we implemented a 24/7 open trauma bed protocol in our designated trauma intensive care units (TICUs) to facilitate rapid admission from the ED. This required maintenance of a daily bump list and timely transferring of patients out of the TICU. We hypothesized that ED LOS and mortality would decrease after implementation.

METHODS

The following data from patients admitted directly from the ED to any ICU were retrospectively compared before (2009) and after (2011) the implementation of a trauma bed protocol at a Level I trauma center: age, sex, Glasgow Coma Scale (GCS) score, shock on admission (systolic blood pressure < 90 mm Hg), mechanism, injury severity scores (Injury Severity Score [ISS] and Abbreviated Injury Scale [AIS] score), ED LOS, ICU readmission rates, and mortality.

RESULTS

Of the patients, 267 (17%) of 1,611 before and 262 (21%) of 1,266 (p < 0.01) after the protocol were admitted directly to the ICU, despite similar characteristics. ED LOS decreased from 4.2 ± 4.0 hours to 3.1 ± 2.1 hours (p < 0.01) in all patients as well as patients with an ISS of greater than 24 (3.1 ± 2.5 vs. 2.2 ± 1.6, p < 0.05) and a head AIS score of greater than 2 (4.2 ± 4.9 vs. 3.1 ± 2.0, p = 0.01). Mortality was unchanged for all patients (9% vs. 8%, p = 0.58) but trends toward improved mortality were found after protocol implementation inpatients with an ISS of greater than 24 (30% vs. 13%, p = 0.07) and in patients with a head AIS score of greater than 2 (12% vs. 6%, p = 0.08). A greater proportion of total patients were admitted to a designated TICU after implementation (83% vs. 93%, p < 0.01). ICU readmissions were unchanged (0.3% vs. 1.5%, p = 0.21).

CONCLUSION

The implementation of a 24/7 open trauma bed protocol in the surgery ICU was associated with a decreased ED LOS and increased admissions to designated TICUs in all patients. Improved throughput was achieved without increases in ICU readmissions.

LEVEL OF EVIDENCE

Therapeutic study, level IV.

Correlation of measures of patient acuity with measures of crowding in a pediatric emergency department

OBJECTIVE

Emergency department (ED) crowding is an increasingly common problem in the United States. Crowding can lead to ED closure and diversion, poor patient satisfaction, and patient safety issues. The purpose of this study was to examine measures of ED census and measures of crowding to determine if a correlation exists in a pediatric ED setting.

METHODS

Arkansas Children's Hospital is a major pediatric referral center. Measures of ED acuity (including total census, admission rate, total number of admissions, and proportion of triage category nonurgent patients) and measures of throughput (left-without-being-seen [LWBS] rate and ED length of stay [LOS]) data for 11 years (1996-2006) were plotted, and correlation coefficients were calculated.

RESULTS

Annual ED census varied between 35,415 and 40,711 during the 11-year study period. The total number of admissions increased from 4179 in 1996 to 6539 in 2006. When total census was plotted against LWBS rate and ED LOS, a poor correlation was found (R² = 0.007 for total census vs LWBS rate). However, a strong correlation was found when the relationship between the total number of admissions and LWBS rate was examined (R² = 0.89). Similarly, a strong relationship between the admission rate and LWBS rate was seen (R² = 0.75). In addition, a strong correlation was seen between admissions (total and percentage) versus ED LOS.

CONCLUSIONS

There is a strong correlation between the number of patients admitted and measures of overcrowding in this pediatric ED, but there is a poor correlation between the total census and overcrowding measures. Targeting process improvement on hospital-wide patient flow may help reduce ED crowding.

Systematic review of emergency department crowding: causes, effects, and solutions

Emergency department (ED) crowding represents an international crisis that may affect the quality and access of health care. We conducted a comprehensive PubMed search to identify articles that (1) studied causes, effects, or solutions of ED crowding; (2) described data collection and analysis methodology; (3) occurred in a general ED setting; and (4) focused on everyday crowding. Two independent reviewers identified the relevant articles by consensus. We applied a 5-level quality assessment tool to grade the methodology of each study. From 4,271 abstracts and 188 full-text articles, the reviewers identified 93 articles meeting the inclusion criteria. A total of 33 articles studied causes, 27 articles studied effects, and 40 articles studied solutions of ED crowding. Commonly studied causes of crowding included nonurgent visits, "frequent-flyer" patients, influenza season, inadequate staffing, inpatient boarding, and hospital bed shortages. Commonly studied effects of crowding included patient mortality, transport delays, treatment delays, ambulance diversion, patient elopement, and financial effect. Commonly studied solutions of crowding included additional personnel, observation units, hospital bed access, nonurgent referrals, ambulance diversion, destination control, crowding measures, and queuing theory. The results illustrated the complex, multifaceted characteristics of the ED crowding problem. Additional high-quality studies may provide valuable contributions toward better understanding and alleviating the daily crisis. This structured overview of the literature may help to identify future directions for the crowding research agenda.

Impact of nurse staffing level on emergency department market share

BACKGROUND

Emergency departments (EDs) function at the interface of complex systems of the hospital and play a critical role in safety net systems. Adequate level of nurse staffing is crucial in meeting patients' needs and assuring their safety in EDs.

PURPOSES

This study examined the impact of nurse staffing on ED market shares.

METHODOLOGY/APPROACH

Data were collected from 122 hospitals operating nationally designated emergency medical centers. Multiple regression analyses were conducted to explain ED market share with the nurse staffing level.

FINDINGS

After controlling for hospital and regional characteristics, nurse staffing level significantly influenced market shares. Specifically, increasing one level from the baseline nurse staffing resulted in 29% higher ED market share.

PRACTICE IMPLICATIONS

Higher nurse staffing level is sensitively linked to the higher market share in emergency care services. These findings provide an initiative for hospital managers and nurse administrators to recruit and retain more nurses for pursuing higher nurse staffing. Furthermore, continuous effort should be made to develop a high standard of establishing and maintaining an adequate level of nurse staffing.