Article

Novel information and communication technology system to improve surge capacity and information management in the initial hospital response to major incidents

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  • Novel information and communication technology system to improve surge capacity and information management in the initial hospital response to major incidents

    The initial response of local hospitals to major incidents involving natural and anthropogenic hazards is crucial [1-6]. When a major incident is recognized by a hospital’s headquarters, it is necessary to

    increase medical surge capacity and capability before external supports arrive. Thus, the hospital must communicate a variety of information to multiple staff, including those who are off-duty [1, 7]; staffing is key to increasing surge capacity [8-12].

    Few investigations of emergency staffing have been conducted [13]. Hospitals have reported using an emergency telephone contact system

    -a so-called “phone tree”-or automatic assembly according to predetermined criteria [14]. However, phone trees necessitate direct verbal communication and the information is only communicated to one staff member at a time. In the automatic assembly method, health-care providers are required to collect the necessary information by themselves. Moreover, subsequent information management, such as personnel assignment after emergency staffing, is an essential element in the initial hospital response. Despite this, rarely have effec- tive information management systems been developed [8, 15].

    The recent development of information and communication technology (ICT) has been remarkable [16-19]. ICT could be used for emer- gency staffing and subsequent information management [15]. Specifically, we hypothesized that, compared with existing methods, an ICT system would enable prompter and more accurate information transfer with more effective utilization. We developed a new ICT system with three functions: (1) simultaneous notification, (2) response and arrival status management, and (3) personnel assignment and verified its effective- ness in simulation tests (Figs. 1-2 and details [Supplementary data]).

    In simulation test 1 (information transmission), our ICT system trans-

    mitted information to the staff and back to headquarters significantly more rapidly than the conventional phone tree approach (P b 0.01; Fig. 3). The ICT system transmitted information to study participants signif- icantly more accurately than the phone tree approach (P b 0.05; Fig. 4A-C). In simulation test 2 (the information management of the personnel assignment function), all study participants successfully completed

    Fig. 1. Panel A: Schematic diagram of procedure. A headquarters in the hospital activates the system by filling in a request form. The request is securely transferred to a cloud server via the internet. The cloud-based software automatically creates an e-mail based on the content of the request; it then sends the e-mail to staff mobile phones. Responses from staff outside the hospital are transferred to the cloud server, where a record of current response status is created and updated at all times. After staff members arrive, the ICT system can add information regarding their assigned area to aid personnel assignment. Panel B: Received mail text in mobile phone of staff outside hospital.

    Fig. 2. System screen of assigned section.Panel A: Overview table of assigned section.http://www.cereja.co.jp/dcs/Assigned_Section_Overview.htmlPanel B: Detailed information about assigned section.http://www.cereja.co.jp/dcs/Assigned_Section_Detail.html

    the assignment without errors using both the ICT system and a conven- tional manual approach. However, the ICT system was significantly more rapid than the conventional manual approach in assigning 30 staff members (P = 0.0016; Fig. 4D).

    To ensure that a hospital’s disaster control headquarters conduct an effective initial response, it is crucial that they notify in-house hospital

    staff, provide the necessary information, and receive responses from those staff [8]. Although the phone tree approach does enable direct verbal communication between individuals, it results in lost time accu- racy. In fact, in a US survey, only 43% of respondents considered the phone tree an effective method of contacting in-house staff in a disaster situation [14].

    Fig. 3. Kaplan-Meier probability curve of receipt. Panel A: Staff outside hospital. Panel B. Headquarters.

    Fig. 4. Accuracy and quickness of transmitted information. Panel A: Information about disaster type. Panel B: Information about site of incidence. Panel C: Information about assembly location. Panel D: operation time of personnel assignment simulation.

    In keeping with their prevalence, mobile phones have been used to improve the initial hospital response to disasters [13, 20]. Specifically, the utility of short message service (SMS) text messaging to notify med- ical staff has been tested in a simulated mass casualty incident using a ready-made SMS mobile phone application [11, 13]. The studies showed that the simultaneous transmission to multiple persons-a basic ICT function-is effective. Similarly, our study showed the utility of simulta- neous transmission using ICT. Moreover, our system had several advan- tages over existing mobile phone applications such as SMS text messaging or messenger applications. Firstly, ICT can notify thousands of people at once, whereas SMS text messaging or messenger applica- tions are limited in the number of destinations which a single message can simultaneously send to [21]. Secondly, our system enables a user with an insufficient experience to transmit information easily, quickly, and accurately, with contents that are both necessary and sufficient without opening the instruction manual. Furthermore, the system was designed with various considerations and specialized to provide high effectiveness during the initial response to disaster. For example, to pro- mote a prompt system activation by headquarters who are uncertain whether they need to send a request of attendance during the initial phase due to insufficient information, the input screen for system activa- tion has a predefined format of a standby request. To provide flexibility, users can select the destination of each transmission from a list of staff categories by clicking a button. To prevent notification failure, the system repeatedly sends e-mail requests after activation (e.g., every 5 min).

    We also developed the system to facilitate subsequent assign- ment of staff members who have arrived at the assembly point. Spe- cifically, the system was designed so that the headquarters of hospital disaster control could easily and quickly place staff by checking the inputted information necessary to optimal personnel assignment. The present study results showed that the system signif- icantly shortened operation times.

    To conclude, our novel ICT system transmitted information more ac- curately and promptly to staff. Headquarters more quickly received staff responses and the information was effectively utilized for subsequent personnel assignment. It appears that the system improves staff Resource management during the initial hospital response to a major incident.

    Support/funding

    None to disclose.

    Appendix A. Supplementary data

    Supplementary data to this article can be found online at https://doi. org/10.1016/j.ajem.2018.06.007.

    Mami Yamada, MD

    Rinku General Medical Center, Senshu Trauma and Critical Care Center, 2-

    23 Rinku Orai Kita, Osaka 598-8577, Japan

    Taka-aki Nakada, MD, PhD

    Rinku General Medical Center, Senshu Trauma and Critical Care Center, 2-

    23 Rinku Orai Kita, Osaka 598-8577, Japan Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, 1-8-1 Inohana, Chuo, Chiba 260-8677, Japan Corresponding author at: Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, 1-8-1 Inohana,

    Chuo, Chiba 260-8677, Japan.

    E-mail address: [email protected].

    Shota Nakao, MD

    Rinku General Medical Center, Senshu Trauma and Critical Care Center, 2-

    23 Rinku Orai Kita, Osaka 598-8577, Japan

    Eiji Hira, MD

    Rinku General Medical Center, Senshu Trauma and Critical Care Center, 2-

    23 Rinku Orai Kita, Osaka 598-8577, Japan Shimane University Faculty of Medicine, Department of Acute Care Surgery,

    89-1 Enya-cho, Izumo, Shimane 693-8501, Japan

    Koichiro Shinozaki, MD, PhD Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, 1-8-1 Inohana, Chuo, Chiba 260-8677, Japan The Feinstein Institute for Medical Research, Northwell Health, 350 Community Dr., Manhasset, NY 11030, United States

    Rui Kawaguchi, MD Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, 1-8-1 Inohana, Chuo, Chiba 260-8677, Japan

    Yasuaki Mizushima, MD, PhD Tetsuya Matsuoka, MD, PhD

    Rinku General Medical Center, Senshu Trauma and Critical Care Center, 2-

    23 Rinku Orai Kita, Osaka 598-8577, Japan

    24 May 2018

    https://doi.org/10.1016/j.ajem.2018.06.007

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      Gastric ultrasonography in evaluating NPO status of pediatric patients in the emergency department

      Pulmonary aspiration of gastric contents is uncommon but still con- sidered a potential risk in patients who may require emergent intuba- tion or procedural sedation [1, 2]. This normally occurs during induction, which tends to be technically variable for pediatric patients. The incidence of pulmonary aspiration is about four to ten times higher in Pediatric populations than adults [3, 4]. Typically, preprocedural fasting time is recommended and used to determine the risk of aspira- tion. The American Society of Anesthesiology (ASA) 2011 Practice Guidelines recommends at least a 2-hour wait for clear fluids and 6 h for solid foods prior to general anesthesia [5]. However, NPO status is not an independent predictor of aspiration and a definitive assessment of gastric contents and NPO status in pediatric patients is either unavail- able in emergency department (ED) [3, 6].

      Given the variations in reliability of parent/self-reported NPO status and gastric emptying times, NPO status may not truly reflect whether or not contents are present in the stomach. In an effort to assess the appli- cation of point-of-care-ultrasound (POCUS) in detecting gastric con- tents, we conducted a prospective observational study at an academic pediatric emergency department (ED). We postulated that gastric US may offer an objective, alternative approach to assessing gastric con- tents in pediatric patients. Gastric US has been reported as highly sensi- tive and specific to detect or rule out gastric contents [7, 8].

      In this study, we included patients aged 2 to 18 years with no prior history of esophageal or gastric surgery, hernia, or diabetes. After obtaining informed consents from the parent or legal guardian, EM US fellows performed gastric US on each patient. The sonographers were blinded to the patient’s time of the last ingestion and only gathered that data after performing and storing the US images. Either a Sonosite M-Turbo or a Mindray(R) M-9 with curviLinear probe was used to per- form gastric ultrasonography. Patients were placed in a right-lateral decubitus position, which is the position that can detect minimal fluid volume, and the antrum of the stomach was viewed in a sagittal orien- tation (Fig. 1). The gastric antrum was scanned and measured and the presence and type of contents (fluid versus solid) determined. The US images were then reviewed by two EM attending sonographers inde- pendent of each other and blinded to the other study data to assess reproducibility.

      Fig. 2. Correlation of gastric area and time since oral food or drink ingestion.

      ultrasound findings

      In this group of pediatric patients, we were able to demonstrate the use of US images of the gastric antrum to distinguish the presence or ab- sence of gastric contents. Overall, we detected gastric contents in 83% of patients (43/52). In 69% of patients (n = 36), gastric US was able to detect expected gastric contents based on positive meal history. In 13% (n = 7) ultrasound showed gastric contents in patients who were NPO by history. In another 13% (n = 7) patients were not NPO by his- tory but US showed no gastric contents. In only 22% (2/9) of patients who reported an NPO status were no gastric contents seen. In patients where US showed gastric contents, the average time since last ingestion was 2.3 h for any type and 4.7 h for solid foods. Fig. 2 shows a significant yet modest negative correlation between the gastric area observed on US and time since ingestion of solids and liquids (Pearson r = -0.24, Pone-tailed = 0.04). Both reviewers agreed on US findings in 49 out of 52 patients with a weighted kappa of 0.90.

      How reliable is the self-reported NPO?

      In 52 patients who were included in this study, only 9 patients (17%) reported no food/liquid intake in past 2-6 h. The estimated sensitivity of gastric US was 84% (95% CI 69-93%) and specificity was 22% (95% CI 4-60%) when compared to patient anamnesis as a gold standard. The positive likelihood ration (LR+) was 1.08 (95% CI 0.74-1.56) and the negative likelihood ration (LR-) was 0.73 (95% CI 0.17-3.09).

      This suggests gastric contents as seen on US correlated only mod- estly with patient history of ingestion. In 26% of patients there was dis- cordance between the gastric US findings and the self-reported NPO status. There were only two instances where the patient’s history aligned with the negative finding of gastric contents on US.

      Fig. 1. Ultrasound scans of an empty and content-filled gastric antrum.

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