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https://www.readbyqxmd.com/read/28854262/accurate-measurement-of-chest-compression-depth-using-impulse-radio-ultra-wideband-sensor-on-a-mattress
#1
Byung Gyu Yu, Je Hyeok Oh, Yeomyung Kim, Tae Wook Kim
OBJECTIVE: We developed a new chest compression depth (CCD) measuring technology using radar and impulse-radio ultra-wideband (IR-UWB) sensor. This study was performed to determine its accuracy on a soft surface. METHODS: Four trials, trial 1: chest compressions on the floor using an accelerometer device; trial 2: chest compressions on the floor using an IR-UWB sensor; trial 3: chest compressions on a foam mattress using an accelerometer device; trial 4: chest compressions on a foam mattress using an IR-UWB sensor, were performed in a random order...
2017: PloS One
https://www.readbyqxmd.com/read/28427783/a-trade-off-relationship-between-chest-compression-depth-and-chest-wall-recoil-during-cardiopulmonary-resuscitation
#2
Je Hyeok Oh
No abstract text is available yet for this article.
April 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28369055/effectiveness-of-feedback-with-a-smartwatch-for-high-quality-chest-compressions-during-adult-cardiac-arrest-a-randomized-controlled-simulation-study
#3
RANDOMIZED CONTROLLED TRIAL
Chiwon Ahn, Juncheol Lee, Jaehoon Oh, Yeongtak Song, Youngjoon Chee, Tae Ho Lim, Hyunggoo Kang, Hyungoo Shin
Previous studies have demonstrated the potential for using smartwatches with a built-in accelerometer as feedback devices for high-quality chest compression during cardiopulmonary resuscitation. However, to the best of our knowledge, no previous study has reported the effects of this feedback on chest compressions in action. A randomized, parallel controlled study of 40 senior medical students was conducted to examine the effect of chest compression feedback via a smartwatch during cardiopulmonary resuscitation of manikins...
2017: PloS One
https://www.readbyqxmd.com/read/28328729/the-superiority-of-the-two-thumb-over-the-two-finger-technique-for-single-rescuer-infant-cardiopulmonary-resuscitation
#4
Sang Yoon Lee, Jun Young Hong, Je Hyeok Oh, Sun-Han Son
OBJECTIVES: The two-finger technique (TFT) using the index-middle fingers of the right hand (TFT-R23) was recently confirmed to produce deeper chest compression depth (CCD) compared with the TFT using any other fingers. This study was carried out to confirm whether the TFT-R23 would be as effective as the two-thumb technique (TTT). In addition, individual finger strengths were measured to identify the reasons why the TTT and TFT-R23 produced deeper CCD than any other methods. METHODS: This prospective randomized cross-over trial compared TTT with TFT-R23...
March 21, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/27752612/estimation-of-optimal-pediatric-chest-compression-depth-by-using-computed-tomography
#5
Soo Young Jin, Seong Beom Oh, Young Oh Kim
OBJECTIVE: This study aimed to compare the optimal chest compression depth for infants and children with that of adults when the simulated compression depth was delivered according to the current guidelines. METHODS: A total of 467 consecutive chest computed tomography scans (93 infants, 110 children, and 264 adults) were reviewed. The anteroposterior diameter and compressible diameter (CD) for infants and children were measured at the inter-nipple level and at the mid-lower half of the spine for adults...
March 2016: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/27624370/relationship-between-chest-compression-depth-and-novice-rescuer-body-weight-during-cardiopulmonary-resuscitation
#6
Je Hyeok Oh, Chan Woong Kim
OBJECTIVE: This study determined if rescuer body weight is a major determinant of chest compression depth (CCD) among novice rescuers by analyzing the results of cardiopulmonary resuscitation (CPR) skill tests among medical students and determined the body weight threshold for those unable to achieve adequate CCD. METHODS: Retrospective analysis of CPR test results was performed. A total of 107 medical students completed the tests, which included 5 cycles of CPR...
December 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27283062/the-2015-resuscitation-council-of-asia-rca-guidelines-on-adult-basic-life-support-for-lay-rescuers
#7
Sung Phil Chung, Tetsuya Sakamoto, Swee Han Lim, Mathew Huei-Ming Ma, Tzong-Luen Wang, Francis Lavapie, Sopon Krisanarungson, Hiroshi Nonogi, Sung Oh Hwang
This paper introduces adult basic life support (BLS) guidelines for lay rescuers of the resuscitation council of Asia (RCA) developed for the first time. The RCA BLS guidelines for lay rescuers have been established by expert consensus among BLS Guidelines Taskforce of the RCA on the basis of the 2015 International Consensus on Cardiopulmonary Resuscitation (CPR) and Emergency Cardiovascular Care Science with Treatment Recommendations. The RCA recommends compression-only CPR for lay rescuers and emphasizes high-quality CPR with chest compression depth of approximately 5cm and chest compression rate of 100-120min(-1)...
August 2016: Resuscitation
https://www.readbyqxmd.com/read/27247512/which-fingers-should-we-perform-two-finger-chest-compression-technique-with-when-performing-cardiopulmonary-resuscitation-on-an-infant-in-cardiac-arrest
#8
Young Sinn Kim, Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee, Jun Young Hong
This study compared the effectiveness two-finger chest compression technique (TFCC) performed using the right vs. left hand and the index-middle vs. middle-ring fingers. Four different finger/hand combinations were tested randomly in 30 healthcare providers performing TFCC (Test 1: the right index-middle fingers; Test 2: the left index-middle fingers; Test 3: the right middle-ring fingers; Test 4: the left middle-ring fingers) using two cross-over trials. The "patient" was a 3-month-old-infant-sized manikin...
June 2016: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27004719/smartwatches-as-chest-compression-feedback-devices-a-feasibility-study
#9
Yeongtak Song, Youngjoon Chee, Jaehoon Oh, Chiwon Ahn, Tae Ho Lim
BACKGROUND: Recently, there have been attempts to use smartphones and smartwatches as the feedback devices to improve the quality of chest compressions. In this study, we compared chest compression depth feedback accuracy between a smartphone and a smartwatch in a hands-only cardiopulmonary resuscitation scenario, using a manikin with a displacement sensor system. METHODS: Ten basic life support providers participated in this study. Guided by the chest compression depths displayed on the monitor of a laptop, which received data from the manikin, each participant performed 2min of chest compressions for each target depth (35mm and 55mm) on a manikin while gripping a smartphone and wearing a smartwatch...
June 2016: Resuscitation
https://www.readbyqxmd.com/read/26847307/training-a-chest-compression-of-6-7-cm-depth-for-high-quality-cardiopulmonary-resuscitation-in-hospital-setting-a-randomised-controlled-trial
#10
RANDOMIZED CONTROLLED TRIAL
Jaehoon Oh, Tae Ho Lim, Youngsuk Cho, Hyunggoo Kang, Wonhee Kim, Youngjoon Chee, Yeongtak Song, In Young Kim, Juncheol Lee
PURPOSE: During cardiopulmonary resuscitation (CPR), chest compression (CC) depth is influenced by the surface on which the patient is placed. We hypothesized that training healthcare providers to perform a CC depth of 6-7 cm (instead of 5-6 cm) on a manikin placed on a mattress during CPR in the hospital might improve their proper CC depth. MATERIALS AND METHODS: This prospective randomised controlled study involved 66 premedical students without CPR training. The control group was trained to use a CC depth of 5-6 cm (G 5-6), while the experimental group was taught to use a CC depth of 6-7 cm (G 6-7) with a manikin on the floor...
March 2016: Yonsei Medical Journal
https://www.readbyqxmd.com/read/26628317/out-of-hospital-cardiopulmonary-resuscitation-strategies-using-one-handed-chest-compression-technique-for-children-suffering-a-cardiac-arrest
#11
Gun Hee Jung, Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee
OBJECTIVE: We evaluated the decrease in chest compression depth during 30 : 2 compression-to-ventilation ratio one-handed chest compression (OHCC) in an out-of-hospital pediatric arrest setting, and whether switching hands every other cycle could maintain compression depth. METHODS: A 5-year-old child-sized manikin was used, and 50 medical students participated in the present study. First, the participants performed 5 min OHCC with a 30 : 2 compression-to-ventilation ratio on the floor (baseline test)...
November 27, 2015: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/26423320/effects-of-alternating-hands-during-in-hospital-one-handed-chest-compression-a-randomised-cross-over-manikin-trial
#12
Sin Ae Cheong, Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee
OBJECTIVE: We evaluated the decrease in chest compression depth during continuous one-handed chest compression (OHCC) in an in-hospital paediatric arrest setting, and whether switching hands could delay the decrease in chest compression depth. METHODS: In total, 30 healthcare providers were randomised into groups A and B. Group A performed test 1 (chest compressors alternated hands every 30 s in 2 min of OHCC), followed by test 2 (chest compressors used one hand for 2 min without switching to the other hand) and group B, vice versa...
December 2015: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/26349025/effectiveness-of-chest-compression-feedback-during-cardiopulmonary-resuscitation-in-lateral-tilted-and-semirecumbent-positions-a-randomised-controlled-simulation-study
#13
RANDOMIZED CONTROLLED TRIAL
Y Song, J Oh, Y Chee, Y Cho, S Lee, T H Lim
Feedback devices have been shown to improve the quality of chest compression during cardiopulmonary resuscitation for patients in the supine position, but no studies have reported the effects of feedback devices on chest compression when the chest is tilted. Basic life support-trained providers were randomly assigned to administer chest compressions to a manikin in the supine, 30° left lateral tilt and 30° semirecumbent positions, with or without the aid of a feedback device incorporated into a smartphone...
November 2015: Anaesthesia
https://www.readbyqxmd.com/read/26298053/proper-target-depth-of-an-accelerometer-based-feedback-device-during-cpr-performed-on-a-hospital-bed-a-randomized-simulation-study
#14
RANDOMIZED CONTROLLED TRIAL
Sanghyun Lee, Jaehoon Oh, Hyunggoo Kang, Taeho Lim, Wonhee Kim, Youngjoon Chee, Yeongtak Song, Chiwon Ahn, Jun Hwi Cho
PURPOSE: Feedback devices are used to improve chest compression (CC) quality related to survival rates in cardiac arrest. However, several studies have shown that feedback devices are not sufficiently reliable to ensure adequate CC depth on soft surfaces. Here, we determined the proper target depth of feedback (TDF) using an accelerometer during cardiopulmonary resuscitation in hospital beds. METHODS: In prospective randomized crossover study, 19 emergency physicians performed CCs for 2 minutes continuously on a manikin in 2 different beds with 3 TDFs (5, 6, and 7 cm)...
October 2015: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25921966/does-accelerometer-feedback-on-high-quality-chest-compression-improve-survival-rate-an-in-hospital-cardiac-arrest-simulation
#15
Min Hee Jung, Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee, Wen Joen Chang
OBJECTIVE: We investigated whether visual feedback from an accelerometer device facilitated high-quality chest compressions during an in-hospital cardiac arrest simulation using a manikin. METHODS: Thirty health care providers participated in an in-hospital cardiac arrest simulation with 1 minute of continuous chest compressions. Chest compressions were performed on a manikin lying on a bed according to visual feedback from an accelerometer feedback device. The manikin and accelerometer recorded chest compression data simultaneously...
August 2015: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25688840/should-we-change-chest-compression-providers-every-2%C3%A2-min-when-performing-one-handed-chest-compressions
#16
Je Hyeok Oh, Sung Eun Kim, Chan Woong Kim, Dong Hoon Lee
OBJECTIVE: Because the one-handed chest compression (OHCC) technique uses one hand, unlike the two-handed chest compression (THCC) technique, compression depth might be reduced more rapidly in OHCC than THCC. The present study was conducted to determine whether compression depth was affected within 2 min after the start of OHCC in a simulated in-hospital paediatric arrest model. METHODS: Forty medical doctors performed continuous OHCC on a child manikin lying on a hard floor using a CPRmeter for 2 min...
April 2015: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/25433046/over-the-head-two-thumb-encircling-technique-as-an-alternative-to-the-two-finger-technique-in-the-in-hospital-infant-cardiac-arrest-setting-a-randomised-crossover-simulation-study
#17
RANDOMIZED CONTROLLED TRIAL
Choong Hyun Jo, Hwan Suk Jung, Gyu Chong Cho, You Jang Oh
OBJECTIVE: To determine if the over-the-head two-thumb encircling technique (OTTT) provides better quality cardiopulmonary resuscitation (CPR) than the conventional two-finger technique (TFT) when performed by a lone rescuer in an in-hospital infant cardiac arrest setting. METHODS: This prospective, randomised crossover design study recruited 50 nurses who voluntarily performed lone rescuer infant CPR for 2 min on a manikin. Participants who performed OTTT stood at the head of the manikin to compress the chest and provide bag-valve mask ventilations, whereas those who performed TFT stood by the side of the manikin to compress the chest and provide pocket-mask ventilations...
September 2015: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/25402865/a-new-chest-compression-depth-feedback-algorithm-for-high-quality-cpr-based-on-smartphone
#18
Yeongtak Song, Jaehoon Oh, Youngjoon Chee
BACKGROUND: Although many smartphone application (app) programs provide education and guidance for basic life support, they do not commonly provide feedback on the chest compression depth (CCD) and rate. The validation of its accuracy has not been reported to date. This study was a feasibility assessment of use of the smartphone as a CCD feedback device. In this study, we proposed the concept of a new real-time CCD estimation algorithm using a smartphone and evaluated the accuracy of the algorithm...
January 2015: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/25308537/chest-compression-with-kneeling-posture-in-hospital-cardiopulmonary-resuscitation-a-randomised-crossover-simulation-study
#19
RANDOMIZED CONTROLLED TRIAL
Jaehoon Oh, Youngjoon Chee, Taeho Lim, Youngsuk Cho, In Young Kim
PURPOSE: We suggest an alternative chest compression (CC) in kneeling posture using a 'kneeling stool' on which the performer kneels beside the patient on a bed in-hospital. In kneeling posture, we can maintain high quality cardiopulmonary resuscitation (CPR) without the bed height adjustment, which is necessary and inconvenient in standing posture. METHODS: This study is a randomised crossover trial with 38 participants working in one ED. The first group knelt on the kneeling stool beside a manikin placed on a bed, whereas the second group stood on a step stool with the manikin at knee level using bed height adjustment...
December 2014: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/25147363/one-handed-chest-compression-technique-for-paediatric-cardiopulmonary-resuscitation-dominant-versus-non-dominant-hand
#20
RANDOMIZED CONTROLLED TRIAL
Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee, Sang Jin Lee
BACKGROUND: Pediatric resuscitation guidelines do not specify which hand to use for one-handed cardiopulmonary resuscitation (CPR). OBJECTIVE: To determine whether there is a difference in the quality of one-handed chest compressions (OHCCs) using the dominant versus non-dominant hand in simulated paediatric CPR. MATERIALS AND METHODS: 41 doctors took part in the study. Chest compressions were alternately performed with the dominant (test 1) and non-dominant hand (test 2) in a random order at 30 min intervals...
July 2015: Emergency Medicine Journal: EMJ
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