1.Is it possible to reduce intra-hospital transport time for computed tomography evaluation in critically ill cases using the Easy Tube Arrange Device?.
Kyung Hyeok SONG ; Sung Uk CHO ; Jin Woong LEE ; Yong Chul CHO ; Won Joon JEONG ; Yeon Ho YOU ; Seung RYU ; Seung Whan KIM ; In Sool YOO ; Ki Hyuk JOO
Clinical and Experimental Emergency Medicine 2018;5(1):14-21
OBJECTIVE: Patients are often transported within the hospital, especially in cases of critical illness for which computed tomography (CT) is performed. Since increased transport time increases the risks of complications, reducing transport time is important for patient safety. This study aimed to evaluate the ability of our newly invented device, the Easy Tube Arrange Device (ETAD), to reduce transport time for CT evaluation in cases of critical illness. METHODS: This prospective randomized control study included 60 volunteers. Each participant arranged five or six intravenous fluid lines, monitoring lines (noninvasive blood pressure, electrocardiography, central venous pressure, arterial catheter), and therapeutic equipment (O2 supply device, Foley catheter) on a Resusci Anne mannequin. We measured transport time for the CT evaluation by using conventional and ETAD method. RESULTS: The median transport time for CT evaluation was 488.50 seconds (95% confidence interval [CI], 462.75 to 514.75) and, 503.50 seconds (95% CI, 489.50 to 526.75) with 5 and 6 fluid lines using the conventional method and 364.50 seconds (95% CI, 335.00 to 388.75), and 363.50 seconds (95% CI, 331.75 to 377.75) with ETAD (all P < 0.001). The time differences were 131.50 (95% CI, 89.25 to 174.50) and 148.00 (95% CI, 116.00 to 177.75) (all P < 0.001). CONCLUSION: The transport time for CT evaluation was reduced using the ETAD, which would be expected to reduce the complications that may occur during transport in cases of critical illness.
Blood Pressure
;
Central Venous Pressure
;
Critical Illness*
;
Electrocardiography
;
Humans
;
Manikins
;
Methods
;
Patient Safety
;
Prospective Studies
;
Transportation
;
Volunteers
2.Is the Modified AIMS65 Score Suitable for Distinguishing the Low Risk Group and the High Risk Group for Patients with Upper Gastrointestinal Bleeding?.
Seung Woo YOO ; Jin Woong LEE ; Sung Uk CHO ; Jun Wan LEE ; Won Joon JEONG ; Yong Chul CHO ; Yeon Ho YOU ; Seung RYU ; Seung Whan KIM ; In Sool YOO
Journal of the Korean Society of Emergency Medicine 2017;28(1):78-86
PURPOSE: The goal of this study was to increase the performance of the AIMS65 score in the prediction of outcomes in upper gastrointestinal bleeding by modifying the AIMS65 score. METHODS: Data were collected retrospectively between January 2015 and June 2015. A total of 212 adult patients, who visited the emergency department with an upper gastrointestinal hemorrhage during this period were included for analysis. High risk patients were defined as follows: those who needed an endoscopic or surgical hemostasis, suffered rebleeding, hospitalized in an intensive care unit, and those who were deceased within 30 days or required a blood transfusion. The seven parameters of the modified AIMS65 score were as follows: Albumin levels, international normalized ratio (prothrombin time), altered mental status, systolic blood pressure, age>65 years, hemoglobin levels, and heart rate. RESULTS: The high-risk group was comprised of 163 patients, while the low risk group was comprised of 49 patients. The areas under the curve for AIMS65 and modified AIMS65 scores were 0.727 (95% confidence interval, 0.662-0.786) and 0.847 (95% confidence interval, 0.791-0.892), respectively, which were significantly different (p<0.001). The AIMS65 score had a sensitivity of 53.0% and a specificity of 78.5% at a score of 0. The modified AIMS65 score had a sensitivity of 22.4% and a specificity of 99.3% at a score of 0. For the modified AIMS65 score of 3 or lower, the sensitivity was 97.9% with a specificity of 21.4%. CONCLUSION: The modified AIMS65 score was effective in distinguishing between the low-risk group and the high-risk group among patients with upper gastrointestinal bleeding.
Adult
;
Blood Pressure
;
Blood Transfusion
;
Emergency Service, Hospital
;
Gastrointestinal Hemorrhage
;
Heart Rate
;
Hemorrhage*
;
Hemostasis, Surgical
;
Humans
;
Intensive Care Units
;
International Normalized Ratio
;
Prognosis
;
Retrospective Studies
;
Sensitivity and Specificity
;
Triage
3.Multiple Shock Failures during Resuscitation: Risk Factors and Prognostic Implications.
Joonghee KIM ; Taeyun KIM ; Joong Eui RHEE ; Kyuseok KIM ; You Hwan JO ; Jae Hyuk LEE ; Yu Jin KIM ; Hyuk Sool KWON ; Jae Yun JUNG
Journal of the Korean Society of Emergency Medicine 2016;27(2):157-164
PURPOSE: Electrical shock is not always followed by a perfusing rhythm, and multiple shock failure (MSF) is common during CPR. We sought to investigate its risk factors and prognostic implications. METHODS: Adult OHCA patients with emergency department (ED) ACLS attempts were identified from a tertiary hospital OHCA registry extending from 2008 to 2012. Shock failure was defined as any electrical shock attempt not followed by a pulse-generating rhythm. Patients were assigned to one of three groups based on the number of shock failures: 1) MSF: ≥3 electrical shock failures before the first ROSC or CPR termination (if there was no ROSC), 2) early shock success (ESS): pulse-generating rhythm achieved within 3 electrical shock attempts and 3) others: all remaining patients. Baseline characteristics, initial laboratory measurements, and outcomes were compared. RESULTS: A total of 590 patients were included. There was no significant difference in baseline characteristics between the MSF group (n=49) and the early shock success group (n=50) except in its higher proportion of presumed cardiac aetiology. The MSF group showed less severe metabolic acidosis and coagulopathy on ED arrival and better renal function and higher haematocrit and serum albumin levels compared with the ESS group. MSF was associated with less sustained ROSC, but was also associated with more survival discharge and better long-term neurologic outcomes after sustained ROSC. CONCLUSION: MSF may indicate heart-specific problems rather than severe metabolic derangements. Better long-term outcomes can be expected once sustained ROSC is achieved, therefore, this phenomenon warrants more focused research.
Acidosis
;
Adult
;
Cardiopulmonary Resuscitation
;
Emergency Service, Hospital
;
Heart Arrest
;
Humans
;
Resuscitation*
;
Risk Factors*
;
Serum Albumin
;
Shock*
;
Tertiary Care Centers
;
Ventricular Fibrillation
4.Phrenic Arterial Injury Presenting as Delayed Hemothorax Complicating Simple Rib Fracture.
Hong Joon AHN ; Jun Wan LEE ; Kun Dong KIM ; In Sool YOU
Journal of Korean Medical Science 2016;31(4):641-643
Delayed hemothorax after blunt torso injury is rare, but might be associated with significant morbidity and mortality. We present a case of delayed hemothorax bleeding from phrenic artery injury in a 24-year-old woman. The patient suffered from multiple rib fractures on the right side, a right hemopneumothorax, thoracic vertebral injury and a pelvic bone fracture after a fall from a fourth floor window. Delayed hemothorax associated with phrenic artery bleeding, caused by a stab injury from a fractured rib segment, was treated successfully by a minimally invasive thoracoscopic surgery. Here, we have shown that fracture of a lower rib or ribs might be accompanied by delayed massive hemothorax that can be rapidly identified and promptly managed by thoracoscopic means.
Accidental Falls
;
Female
;
Hemothorax/*complications/surgery
;
Humans
;
Rib Fractures/complications/*diagnosis
;
Thoracic Arteries/diagnostic imaging
;
Time Factors
;
Young Adult
5.Reduction of intra-hospital transport time using the easy tube arrange device.
Ki Hyuk JOO ; In Sool YOO ; Jinwoong LEE ; Seung Whan KIM ; Seung RYU ; Yeon Ho YOU ; Yong Chul CHO ; Woon Jun JEONG ; Byung Jun AHN ; Sung Uk CHO
Clinical and Experimental Emergency Medicine 2016;3(2):81-87
OBJECTIVE: Critically ill patients sometimes require transport to another location. Longer intra-hospital transport time increases the risk of hemodynamic instability and associated complications. Therefore, reducing intra-hospital transport time is critical. Our objective was to evaluate whether or not a new device the easy tube arrange device (ETAD) has the potential to reduce intra-hospital transport time of critically ill patients. METHODS: We enrolled volunteers for this prospective randomized controlled study. Each participant arranged four, five, and six fluid tubings, monitoring lines, and therapeutic equipment on a cardiopulmonary resuscitation training mannequin (Resusci Anne). The time required to arrange the fluid tubings for intra-hospital transport using two different methods was evaluated. RESULTS: The median time to arrange four, five, and six fluid tubings was 86.00 (76.50 to 98.50), 96.00 (86.00 to 113.00), and 115.50 (93.00 to 130.75) seconds, respectively, using the conventional method and 60.50 (52.50 to 72.75), 69.00 (57.75 to 80.80), and 72.50 (64.75 to 90.50) seconds using the ETAD (all P<0.001). The total duration (for preparing the basic setting and organizing before and after the transport) was 280.00 (268.75 to 293.00), 315.50 (304.75 to 330.75), and 338.00 (319.50 to 360.25) seconds for four, five, and six fluid tubings, respectively, using the conventional method and 274.50 (261.75 to 289.25), 288.00 (271.75 to 298.25), and 301.00 (284.50 to 310.75) seconds, respectively, using the new method (P=0.024, P<0.001, and P<0.001, respectively). CONCLUSION: The ETAD was convenient to use, reduced the time to arrange medical tubings, and is expected to assist medical staff during intra-hospital transport.
Cardiopulmonary Resuscitation
;
Critical Illness
;
Equipment and Supplies
;
Hemodynamics
;
Humans
;
Manikins
;
Medical Staff
;
Methods
;
Prospective Studies
;
Transportation of Patients
;
Volunteers
6.Risk factors of work-related upper extremity musculoskeletal disorders in male cameramen.
Jung Ho KIM ; Byung Seong SUH ; Soo Geun KIM ; Won Sool KIM ; You Il SHON ; Hee Seung SON
Annals of Occupational and Environmental Medicine 2015;27(1):5-
OBJECTIVE: The aim of this study is to determine the risk factors related to upper extremities work-related musculoskeletal disorders (WRMSDs) in cameramen. METHODS: A questionnaire survey was performed on 166 cameramen in a broadcasting station. The questionnaire consisted of questions on the general characteristics, the health behavior, work type and duration, physical burden, ergonomic posture, and musculoskeletal symptoms. Definition of musculoskeletal disorders was based on NIOSH criteria. RESULTS: The positive rate of WRMSDs symptoms by parts of the body was turned out to be the highest in the shoulder (14.5%) and the lowest in arm and elbow (6%). Logistic regression analysis revealed that symptoms in the shoulders increased with BMI (OR = 3.62, 95% CI = 1.03-12.71), physical burden (OR = 9.29, 95% CI = 1.72-61.78 in the very hard group) and ergonomic factors (OR = 4.50, 95% CI = 1.03-19.68). Ergonomic factors were only related to the symptoms of hand and wrist (OR = 10.21, 95% CI = 1.02-102.20). WRMSDs symptoms, in the whole upper extremities, were higher in the 50 or older age group (OR = 5.86, 95% CI = 1.03-33.26), higher BMI group (OR = 3.26, 95% CI = 1.28-13.53), non-exercise group (OR = 2.37, 95% CI = 1.24-12.59), high physical burden group (OR = 7.6, 95% CI = 1.34-52.74), and high grade ergonomic risk group (OR = 4.82, 95% CI = 1.29-16.06). CONCLUSION: The most serious musculoskeletal disorders of male cameramen were shoulder pain. Ergonomic factors and physical burden were the most significant factors affecting WRMSDs in cameramen in this study. Cameramen should be educated to be able to improve the ergonomic occupational environment and to set up preventive measures against the risk factors during work.
Arm
;
Elbow
;
Hand
;
Health Behavior
;
Human Engineering
;
Humans
;
Logistic Models
;
Male*
;
National Institute for Occupational Safety and Health (U.S.)
;
Occupational Diseases
;
Posture
;
Risk Factors*
;
Shoulder
;
Shoulder Pain
;
Upper Extremity*
;
Wrist
7.Direction of the J-Tip of the Guidewire to Decrease the Malposition Rate of an Internal Jugular Vein Catheter.
Byeong Jun AHN ; Sung Uk CHO ; Won Joon JEONG ; Yeon Ho YOU ; Seung RYU ; Jin Woong LEE ; In Sool YOO ; Yong Chul CHO
Korean Journal of Critical Care Medicine 2015;30(4):280-285
BACKGROUND: We hypothesized that the direction of the J-tip of the guidewire during insertion into the internal jugular vein (IJV) might determine its ultimate location. METHODS: In this study, 300 patients between the ages of 18 and 99 years who required central venous catheterization via IJV in the emergency department enrolled for randomization. IVJ catheterization was successful in 285 of 300 patients. An independent operator randomly prefixed the direction of the J-tip of the guidewire to one of three directions. Based on the direction of the J-tip, patients were allocated into three groups: the J-tip medial-directed group (Group A), the lateral-directed group (Group B), or the downward-directed group (Group C). Postoperative chest radiography was performed on all patients in order to visualize the location of the catheter tip. A catheter is considered malpositioned if it is not located in the superior vena cava or right atrium. RESULTS: Of the total malpositioned catheter tips (8 of 285; 2.8%), the majority (5 of 8; 62.5%) entered the contralateral subclavian vein, 2 (25.0%) were complicated by looping, and 1 (12.5%) entered the ipsilateral subclavian vein. According to the direction of the J-tip of the guidewire, the incidence of malpositioning of the catheter tip was 4 of 92 in Group A (4.3%), 4 of 96 in Group B (4.2%), and there were no malpositions in Group C. There were no significant differences among the three groups (p = 0.114). CONCLUSIONS: The direction of the J-tip of the guidewire had no statistically significant effect on incidence of malpositioned tips.
Catheterization
;
Catheterization, Central Venous
;
Catheters*
;
Central Venous Catheters
;
Emergency Service, Hospital
;
Heart Atria
;
Humans
;
Incidence
;
Jugular Veins*
;
Radiography
;
Random Allocation
;
Subclavian Vein
;
Thorax
;
Vena Cava, Superior
8.Direction of the J-Tip of the Guidewire to Decrease the Malposition Rate of an Internal Jugular Vein Catheter
Byeong Jun AHN ; Sung Uk CHO ; Won Joon JEONG ; Yeon Ho YOU ; Seung RYU ; Jin Woong LEE ; In Sool YOO ; Yong Chul CHO
The Korean Journal of Critical Care Medicine 2015;30(4):280-285
BACKGROUND: We hypothesized that the direction of the J-tip of the guidewire during insertion into the internal jugular vein (IJV) might determine its ultimate location. METHODS: In this study, 300 patients between the ages of 18 and 99 years who required central venous catheterization via IJV in the emergency department enrolled for randomization. IVJ catheterization was successful in 285 of 300 patients. An independent operator randomly prefixed the direction of the J-tip of the guidewire to one of three directions. Based on the direction of the J-tip, patients were allocated into three groups: the J-tip medial-directed group (Group A), the lateral-directed group (Group B), or the downward-directed group (Group C). Postoperative chest radiography was performed on all patients in order to visualize the location of the catheter tip. A catheter is considered malpositioned if it is not located in the superior vena cava or right atrium. RESULTS: Of the total malpositioned catheter tips (8 of 285; 2.8%), the majority (5 of 8; 62.5%) entered the contralateral subclavian vein, 2 (25.0%) were complicated by looping, and 1 (12.5%) entered the ipsilateral subclavian vein. According to the direction of the J-tip of the guidewire, the incidence of malpositioning of the catheter tip was 4 of 92 in Group A (4.3%), 4 of 96 in Group B (4.2%), and there were no malpositions in Group C. There were no significant differences among the three groups (p = 0.114). CONCLUSIONS: The direction of the J-tip of the guidewire had no statistically significant effect on incidence of malpositioned tips.
Catheterization
;
Catheterization, Central Venous
;
Catheters
;
Central Venous Catheters
;
Emergency Service, Hospital
;
Heart Atria
;
Humans
;
Incidence
;
Jugular Veins
;
Radiography
;
Random Allocation
;
Subclavian Vein
;
Thorax
;
Vena Cava, Superior
9.Could One-Hand Compression for a Small Child Cause Intra-abdominal Injuries?.
Dong A KIM ; Yeon Ho YOU ; Yong Chul CHO ; Seung RYU ; Jin Woong LEE ; Seung Whan KIM ; In Sool YOO ; Won Joon JEONG ; Jungsang MIN ; Ji Sook LEE ; Jin Hong MIN ; Seong Soo PARK ; Byoung Gil YOON
Journal of the Korean Society of Emergency Medicine 2014;25(4):349-355
PURPOSE: We examined the question of whether one-hand chest compression for a small child could compress intraabdominal organs. METHODS: We retrospectively examined medical charts and multidirectional computed tomography (MDCT) images obtained from children aged 1 to 18 years who presented to the hospital from March 2002 to March 2012. We measured the length of the sternum (Stotal) and the length of the lower half of the sternum (Stotal/2~X). We also measured the distance from the diaphragm to the midpoint of the sternum (Stotal/2~D) and half the width of an adult hand (Wtotal/2). Finally, we counted the number of instances at each age in which Stotal/2~X and Stotal/2~D were less than Wtotal/2. RESULTS: This study included records and MDCT images for 301 children with a mean age of 12.05+/-5.59 years. We also enrolled 47 adult rescuers (25 men, 53.2%) with a mean age of 23.20+/-2.13 years. The mean Wtotal/2 was 4.62+/-0.46 cm. All 1-year-old children had Stotal/2~X and Stotal/2~D less than Wtotal/2. Among children aged 2 years, six (60.0%) had Stotal/2~X and Stotal/2~D less than Wtotal/2. Among children aged 3 years, four (26.7%) had Stotal/2~X and Stotal/2~D less than Wtotal/2, and among those aged 4 years, two (13.3%) had Stotal/2~X and Stotal/2~D less than Wtotal/2. However, Stotal/2~X and Stotal/2~D were greater than Wtotal/2 in children aged 5 years or more. CONCLUSION: Our measurements indicate that one-hand chest compression for a small child could cause intraabdominal organ injury.
Adult
;
Cardiopulmonary Resuscitation
;
Child*
;
Diaphragm
;
Hand
;
Humans
;
Male
;
Retrospective Studies
;
Sternum
;
Thorax
10.The Relation between Neurologic Prognosis and Optic Nerve Sheath Diameter Measured in Initial Brain Computed Tomography of Cardiac Arrest and Hanging Patients.
Kun Dong KIM ; Hong Joon AHN ; Byul Nim Hee CHO ; Sang Min JEONG ; Joon Wan LEE ; Yeon Ho YOU ; In Sool YOO ; Won Joon JEONG
The Korean Journal of Critical Care Medicine 2013;28(4):293-299
BACKGROUND: Early prediction of neurologic outcome is important to patients treated with therapeutic hypothermia after hypoxic brain injury. Hypoxic brain injury patients may have poor neurologic prognosis due to increased intracranial pressure. Increased intracranial pressure can be detected by optic nerve sheath diameter (ONSD) measurement in computed tomography (CT) or ultrasound. In this study, we evaluate the relation between neurologic prognosis and optic nerve sheath diameter measured in brain CT of hypoxic brain injury patients. METHODS: We analyzed the patient clinical data by retrospective chart review. We measured the ONSD in initial brain CT. We also measured and calculated the gray white matter ratio (GWR) in CT scan. We split the patients into two groups based on neurologic outcome, and clinical data, ONSD, and GWR were compared in the two groups. RESULTS: Twenty-four patients were included in this study (age: 52.6 +/- 18.3, 18 males). The mean ONSD of the poor neurologic outcome group was larger than that of the good neurologic outcome group (6.07 mm vs. 5.39 mm, p = 0.003). The GWR of the good neurologic outcome group was larger than that of the poor outcome group (1.09 vs. 1.28, p = 0.000). ONSD was a good predictor of neurologic outcome (area under curve: 0.848), and an ONSD cut off > or = 5.575 mm had a sensitivity of 86.7% and a specificity of 77.8%. CONCLUSIONS: ONSD measured on the initial brain CT scan can predict the neurologic prognosis in cardiac arrest and hanging patients treated with therapeutic hypothermia.
Brain Injuries
;
Brain*
;
Heart Arrest*
;
Humans
;
Hypothermia
;
Intracranial Pressure
;
Optic Nerve*
;
Prognosis*
;
Retrospective Studies
;
Sensitivity and Specificity
;
Tomography, X-Ray Computed
;
Ultrasonography

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