• Journal of Trauma and Injury
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• v.33 no.4
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• pp.207-218
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• 2020

The following recommendations are presented herein: All trauma patients admitted to the resuscitation room should be constantly (or periodically) monitored for parameters such as blood pressure, heart rate, respiratory rate, oxygen saturation, body temperature, electrocardiography, Glasgow Coma Scale, and pupil reflex (1C). Chest AP and pelvic AP should be performed as the standard initial trauma series for severe trauma patients (1B). In patients with severe hemodynamically unstable trauma, it is recommended to perform extended focused assessment with sonography for trauma (eFAST) as an initial examination (1B). In hemodynamically stable trauma patients, eFAST can be considered as the initial examination (2B). For the diagnosis of suspected head trauma patients, brain computed tomography (CT) should be performed as an initial examination (1B). Cervical spine CT should be performed as an initial imaging test for patients with suspected cervical spine injury (1C). It is not necessary to perform chest CT as an initial examination in all patients with suspected chest injury, but in cases of suspected vascular injury in patients with thoracic or high-energy damage due to the mechanism of injury, chest CT can be considered for patients in a hemodynamically stable condition (2B). CT of the abdomen is recommended for patients suspected of abdominal trauma with stable vital signs (1B). CT of the abdomen should be considered for suspected pelvic trauma patients with stable vital signs (2B). Whole-body CT can be considered in patients with suspicion of severe trauma with stable vital signs (2B). Magnetic resonance imaging can be considered in hemodynamically stable trauma patients with suspected spinal cord injuries (2B).

• Journal of Biomedical Engineering Research
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• v.42 no.4
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• pp.175-185
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• 2021

Purpose: Vital sign are used to help assess the general physical health of a person, give clues to possible diseases, and show progress toward recovery. Researchers are using vital sign data and AI(artificial intelligence) to manage a variety of diseases and predict mortality. In order to analyze vital sign data using AI, it is important to select and extract vital sign data suitable for research purposes. Methods: We developed a method to visualize vital sign and early warning scores by processing retrospective vital sign data collected from EMR(electronic medical records) and patient monitoring devices. The vital sign data used for development were obtained using the open EMR big data MIMIC-III and the wearable patient monitoring device(CareTaker). Data processing and visualization were developed using Python. We used the development results with machine learning to process the prediction of mortality in ICU patients. Results: We calculated NEWS(National Early Warning Score) to understand the patient's condition. Vital sign data with different measurement times and frequencies were sampled at equal time intervals, and missing data were interpolated to reconstruct data. The normal and abnormal states of vital sign were visualized as color-coded graphs. Mortality prediction result with processed data and machine learning was AUC of 0.892. Conclusion: This visualization method will help researchers to easily understand a patient's vital sign status over time and extract the necessary data.

• Journal of Korea Multimedia Society
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• v.15 no.5
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• pp.587-594
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• 2012

IEEE 802.15.6 standard technology is proposed for low-power wireless communication in, on and around body, where vital signs such as pulse, blood pressure, ECG, and EEG signals are transmitted as a type of data packet. Especially, these vital signs should be delivered in real time, so that the latency from slave node to hub node can be one of the pivotal performance requirements. However, in the case of IEEE 802.15.6 technology data retransmission caused by transmission failure can be done in the next superframe. In order to overcome this limitation, we propose an adaptive polling algorithm for IEEE 802.15.6 technology. The proposing algorithm makes the hub to look for an appropriate time period in order to make data retransmission within the superframe. Through the performance evaluation, the proposing algorithm achieves a 61% and a 73% latency reduction compared to those of IEEE 802.15.6 technology in the environment of 70% traffic offered load with 10ms and 100ms superframe period. In addition, the proposing algorithm prevents bursty traffic transmission condition caused by mixing retransmission traffic with the traffic reserved for transmission. Through the proposing adaptive polling algorithm, it will be possible to transmit time-sensitive vital signs without severe traffic delay.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.2
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• pp.1189-1199
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• 2015

This study examined the effects of favorite music therapy on the anxiety and vital signs at each point in gynecologic surgery using the general anesthesia. The research design was a non-equivalent control group non-synchronized design. The data were collected from May 1 to July 30, 2013 and the participants were 44 patients (experimental group, 21, control group, 23) received music therapy while waiting for anesthetic induction and PACU (Post Anesthesia Care Unit). Repeated measures ANOVA was performed to analyze the data by SPSS 18.0. Music therapy reduced the anxiety level at inducing the anesthetic time, and awakening time (p=.003; p=.011). The systolic blood pressure maintained stability at discharge from the PACU (p=.023), and pulse rate was stable at the awakening time (p=.016). This findings support the use of music as a nursing intervention to reduce anxiety and maintain the vital signs for gynecologic surgery patients under general anesthesia.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.302-305
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• 2009

The Multiple vital signs management system using Mobil phone is designed with Wireless sensor network and CDMA which are integrated to create a wide coverage to support various environments like inside and outside of hospital. Health signals from medical sensor node are analysed in cell phone first for real time signal analyses and then the abnormal vital signs are sent and save to hospital server for detail signal processing and doctor's diagnosis. We developed integrated vital access processor of sensor node to use selective medical interface(ECG, Blood pressure and sugar module) and control the self-organizing network of sensor nodes in a wireless sensor network. chronic disease such as heart disease and diabetes is able to check using graph view in mobile phone.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.30 no.5
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• pp.418-426
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• 2019

Recently, many studies on vital sign detection using a radar sensor related to Internet of Things(IoT) smart home systems have been conducted. Because vital signs such as respiration and cardiac rates generally cause micro-motions in the chest or back, the phase of the received echo signal from a target fluctuates according to the micro-motion. Therefore, vital signs are usually detected via spectral analysis of the phase. However, the probability of false alarms in cardiac rate detection increases as a result of various problems in the measurement environment, such as very weak phase fluctuations caused by the cardiac rate. Therefore, this study analyzes the difficulties of vital sign detection and proposes an efficient vital sign detection algorithm consisting of four main stages: 1) phase decomposition, 2) phase differentiation and filtering, 3) vital sign detection, and 4) reduction of the probability of false alarm. Experimental results using impulse-radio ultra-wideband radar show that the proposed algorithm is very efficient in terms of computation and accuracy.

• Journal of electromagnetic engineering and science
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• v.10 no.4
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• pp.250-255
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• 2010

This paper presents a non-contact measurement method of vital signal by the use of multiple-input multiple-output (MIMO) bio-radar system, configured with two antennas that are separated by a certain distance. The direction of arrival (DOA) estimation algorithm for coherent sources was applied to detect vital signals coming from different spatial angles. The proposed MIMO bio-radar system was composed of two identical transceivers sharing single VCO with a PLL. In order to verify the performance of the system, the DOA estimation experiment was completed with respect to the human target at angles varying between $-50^{\circ}$ and $50^{\circ}$ where the bio-radar system was placed at distances (corresponding to 50 cm and 95 cm) in front of a human target. The proposed MIMO bio-radar system can successfully find the direction of a human target.

• Journal of Oriental Neuropsychiatry
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• v.25 no.1
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• pp.47-54
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• 2014

Objectives: The purpose of this research was to analyze the responses of breath-counting meditations with the psychological test and the physical index. Methods: Breath-counting meditation was applied to 10 normal adults. Then, clinical research State-Trait Anxiety Inventory (STAI), State-Trait Anger eXpression Inventory (STAXI), Psychosocial Well-being Index Short Form (PWI-SF), Brief Encounter Psychosocial Instrument-Korean version (BEPSI-K), Heart Rate Variability (HRV), and Vital Signs (V/S) were carried out to analyze the responses of breath-counting meditations. Results: 1) Systolic Blood Pressure (SBP) decreased on the fifteenth day of breath-counting meditation, and Body Temperature (BT) increased on the fifteenth day. In addition, respiration decreased throughout the period of breath-counting meditation. 2) Standard deviations of N-N interval and Total Power (TP) of HRV all significantly increased on the fifteenth day of breath-counting meditation. 3) Scores of STAI1, STAXI1, STAXI2, and PWI-SF decreased after the breath-counting meditation. Conclusions: The results suggested that breath-counting meditations have positive responses to anger, anxiety and stress.

• Journal of Oriental Neuropsychiatry
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• v.25 no.1
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• pp.39-46
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• 2014

Objectives: The objective of this study is to investigate the effects of Breath-Counting Meditation according to Personal Characteristics through the changes of Vital Signs (V/S) and Heart Rate Variability (HRV). Methods: 41 adults were classified according to gender and A-type behavior, then each group was compared for the changes on V/S and HRV through Breath-Counting Meditation of 10 minutes. Results: 1) Systolic and diastolic blood pressure were both significantly decreased in females, and the respiration level decreased significantly in both the male and female groups. 2) Respiration level decreased significantly in both the A-type and Non-A-type groups. 3) LF decreased significantly in both the male and female groups. HF increased significantly in both the male and female groups. 4) TP, LF and LF/HF increased significantly and HF decreased significantly in the Non-A-type group. Conclusions: Breath-Counting Meditation has respiratory effects for all groups and HRV of male, female and Non-A-type groups.

• Journal of Korean Biological Nursing Science
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• v.12 no.2
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• pp.81-88
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• 2010

Purpose: The purpose of this study was to compare effects of intravenous fluid warming and forced-air warming on perioperative body temperature, Blood Pressure, Pulse and thermal discomfort after gastrectomy under general anesthesia. Methods: Data collection was performed from October, 2009 to February, 2010. The intravenous fluid warming group (27) was warmed through an IV line by an Animec set to $37^{\circ}C$. The forced-air warming group (27) was warmed by Bair Hugger System. The warming continued from induction of general anesthesia to two hours after completion of surgery. The data was analyzed by t-test, $X^2$, repeated measures ANOVA using SPSS/WIN 17.0. Results: There was a significant difference of body temperature and thermal discomfort between the intravenous fluid warming group and the forced-air warming group. Conclusion: We need to explore the effects combination of the intravenous fluid warming and the forced-air warming, and other warming therapy and the efficiency of modalities with regards to cost benefit is also needed.