Outcome and Current Status of Therapeutic Hypothermia Following Out-of-hospital Cardiac Arrest in Korea from the Korea Hypothermia Network Registry

PURPOSE: Therapeutic hypothermia (TH) has become a standard strategy for reducing brain damage in the postresuscitation period. The aim of this study is to investigate the outcomes and current performance of TH with out-of-hospital cardiac arrest (OHCA) survivors through the Korean hypothermia network (KORHN) registry. METHODS: We used the KORHN registry, a web-based, multicenter registry that includes 24 participating hospitals throughout the Republic of Korea. Adult comatose OHCA survivors treated with TH from 2007 to 2012 were included. The primary outcomes were neurologic outcome at hospital discharge and in-hospital mortality. The secondary outcomes were TH performance and adverse events during TH. RESULTS: A total of 930 patients were included; of these, 556 (59.8%) patients survived to discharge and 249 (26.8%) were discharged with good neurologic outcomes. The median time from return of spontaneous circulation (ROSC) to the start of TH was 101 (interquartile range (IQR): 46-200) minutes. The induction, maintenance, and rewarming durations were 150 (IQR: 80-267) minutes, 1440 (IQR: 1290-1440) minutes, and 708 (IQR: 420-900) minutes, respectively. The time from the ROSC to coronary angiography was 1,045 (IQR: 121-12,051) hours. Hyperglycemia (46.3%) was the most frequent adverse event. CONCLUSION: Over one quarter of OHCA survivors (26.8%) were discharged with good neurologic outcome. TH performance was managed appropriately in terms of the factors related to the timing of TH, which were the start time for cooling and the rewarming duration.

A Qualitative Study for development of an Informed Consent Form using an iPad in an Emergency Department

PURPOSE: This study identifies best practices for informed consent for emergent computed tomography (CT) scans and development of a new document used to explain the informed consent using an iPad in an emergency department (ED). METHODS: Literature review, semi-structured interviews, and observations of informed consent were used for development of a new process for informed consent. Participants were ED physicians, residents, and senior nurses. Interviews were conducted for identification of agreed best practice and to derive new structural documents for classification of the information into relevant sections. RESULTS: Interviews identified a variety of perceived current deficits in informed consent, including difficult contents and missing explanation of the possible adverse events, such as radiation hazards. Participants provided examples of poor informed consent that were thought to have led to patient dissatisfaction; these included delay for patients who do not agree to undergo CT scan due to brief or inaccurate explanation. The interviewers' responses were used to reach a unifying 'best practice' for the content of informed consent. Their opinions were also used in implementation of a new tool for informed consent using the iPad. CONCLUSION: A new informed consent was developed using an iPad in order to provide a more efficient and organized template, which includes visual information necessary to facilitate understanding. Additional video clips were also developed in order to provide adjuvant materials for detailed explanations.