• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.2
• /
• pp.744-750
• /
• 2013

This study is to collect a basic data of how Cardiopulmonary Resuscitation (CPR) procedure can influence to cardiac arrest patient with and without the Depth Device during the average transport time period. The data has achieved by comparing result sheet of CPR procedure by hands only versus with Depth Device by twenty 1st and 2nd class Emergency Medical Technician (EMT) from five different fire stations in city of Chong-Ju, and twenty Emergency Rescue major students who completed the BLS provide course. The experiment participators experienced loss of compression depth and rate increase over time. However, the CPR procedure with Depth Device shows that both EMT and students to allow maintaining both the compression depth and rate. The experiment leaves a positive result for CPR operators and considers being valuable domain for cardiac arrest patient.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.4
• /
• pp.1699-1705
• /
• 2012

This study was conducted to examine the differences of the quality of chest compression between 10 cm higher position of rescuer's knee from the bottom and its bottom position during implementation of CPR. It selected randomly subjects out of 66 students who attend the Dept. of Emergency Medical Technology in G college, G metropolitan city as the first grader and divided them into 31 experimental group and 32 control group from Nov. 8 to 9, 2011. Mattress was spread 10 cm higher from the bottom(material: B4 Copy Paper) and on the bottom(material: PVC, size: $185{\times}125{\times}0.65cm$) and only chest compression was conducted for 2 minutes. Experiment was conducted with 1 Resusci Anne mannequin and the results of experiment were recorded with Laerdal PC Skill Reporting System. Data collected were analyzed with $x^2$-test and Fisher's exact probability test using SPSS 14.0 for Window, Mann-Whitney U-test, and Wilcoxon signed rank test. As a result of the study, it was found that 10 cm higher position of rescuer knee from the bottom than the bottom position and group below 170 cm in their height and 65 kg in their weight were more effective in proper depth of chest compression and average chest compression depth.

• The Journal of the Convergence on Culture Technology
• /
• v.9 no.5
• /
• pp.167-173
• /
• 2023

The purpose of this study was to analyze the accuracy of artificial respiration and chest compressions using CPR mannequins for university students. First, in the number of chest compressions, subjects A, F, H, I, and J showed similar numbers from 60 to 63, respectively, which were much lower than the standard. Subjects B, D, E, and G showed 90 to 91 times, maintaining the normal range. However, C was rather high with 119 times. Second, the depth of chest compression was 58.60mm, and most of them were deeply compressed. Subject C was close to normal at 51mm, and subjects A to J were significantly higher at 55mm to 62mm. The reason seems to be the result of an unstable psychological state with no experience of chest compressions and a lack of self-confidence. Third, in terms of accuracy, subject E showed the lowest accuracy at 12%, and A~J showed 33%~80%. Experiment subject B showed 95% accuracy, which seems to be the result of D accurately recognizing the chest compression point through theoretical training during military service.

• Journal of Chest Surgery
• /
• v.40 no.4 s.273
• /
• pp.309-312
• /
• 2007

Cervical tracheal rupture is one of the rare injuries after blunt chest trauma, and this can be explained by several mechanisms. Early diagnosis and treatment of tracheal rupture after trauma can reduce the mortality and morbidity. We report here on a surgical experienced case of complete rupture of the cervical tracheal that was due to increased intra-tracheal pressure after a compression injury to the chest of an 8 years old child. We also include a review of the literature.

• Journal of Digital Convergence
• /
• v.12 no.2
• /
• pp.417-421
• /
• 2014

We conducted this study to verify effect of applying musical rhythm during the cardiopulmonary resuscitation(CPR) education. From June to October, 2013, we recruited participants of CPR education among mem's high school students. We divided total 57 participants to 2 groups. For experimental group we use musical rhythm during cardiac compression practice to assist adequate cardiac compression rate and for control group do not apply musical rhythm. The group with musical rhythm show more adequate compression rate(16.4sec) than non-rhythmic group(14.4sec). 90% of rhythmic group keep adequate compression rate, but only 44% of non-rhythmic group keep adequate rate. In conclusion, applying musical rhythm to CPR education is more effective to keep correct cardiac compression rate.

• Journal of the Korea Society of Computer and Information
• /
• v.28 no.12
• /
• pp.175-182
• /
• 2023

In this paper, we propose a study compared and analyzed the CPR results and muscle fatigue of the three groups. There is a group that counts loudly when compressing the mannequin's chest (Group A), a group that breathes autonomously without counting (Group B), and a group that breathes abdominally without counting (Group C). Twelve people were assigned to each group, and after performing chest compressions for 5 minutes, the results of CPR were analyzed using a program connected to the mannequin, and the muscle fatigue of the performers was analyzed using wireless electromyography. The most efficient method was found to be group B. If we only look at the speed and depth of compression within the normal range, Group C would be more efficient, but Group B showed significantly lower muscle fatigue, and Group A did not reach the normal range in depth of chest compression and muscle fatigue was the highest. Group B was also found to be the most accurate in hand positioning accuracy, and was also found to be the most efficient in maintaining concentration on chest compressions.

• Journal of the Korean Society of Radiology
• /
• v.15 no.4
• /
• pp.445-453
• /
• 2021

CT scan is reported to have a high risk of cancer due to a relatively high dose among medical radiological examinations. In particular, exposure to radiation to the breast, which is sensitive to radiation, is inevitable during a chest CT scan for female patient. In this study, the dose reduction effect of wearing a compression band during chest CT scans in women was evaluated, and the lifetime attributable risk due to the effective dose exposed during the CT scan was estimated. As a result, when the compression band was used, the effective tube current decreased as the outer perimeter of the chest became smaller, and it was analyzed that the CT dose index and effective dose were also reduced. In addition, the lifetime attributable risk by chest CT scan was found to reduce the cancer risk by 3.2 per 100,000 for all cancers, 0.2 per 100,000 for solid cancer, and 0.8 per 100,000 for breast cancer, based on women in their 30s when using a compression band. It is judged that the risk of cancer can be reduced through the use of appropriate scan parameters and dose optimization measures such as compression bands for future CT examinations.

• Journal of Chest Surgery
• /
• v.42 no.1
• /
• pp.100-103
• /
• 2009

Traumatic rupture of the thoracic aorta is the second most common cause of death from motor vehicle accidents after head injury. About 85% of these patients do not survive to reach the hospital. The most common mechanism for this is deceleration injury, as occurs in a high speed motor vehicle accident. The aortic isthmus is the site of disruption for about 95% of all blunt thoracic aortic injuries. Another mechanism is crush injury which causes compression of the aorta between the displaced sternal body or manubrium and the thoracic vertebral column. These forces tear the inner layer of the aortic wall at an unusual location. We report here on a case of aortic arch dissection where the injury clearly occurred due to a crush injury and not because of deceleration. The surgical repair was delayed for 10 days after administering intensive medical therapy. The ascending aorta and aortic arch were replaced with an artificial graft with the patient under circulatory arrest and cerebral protection.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.12
• /
• pp.5950-5957
• /
• 2012

CPR with minimized hands-off time is one of integral factors for the improvement of the survival rate of patients. The purpose of this study was to examine the relationship of the installation of C-steps on the main stretcher to CPR accuracy and errors. The subjects in this study were 70 paramedics in 10 firehouses in the province of C(35 for control group, 35 for experimental group), and their CPR accuracy on the main stretchers was checked. As a result, it's found that the main stretchers equipped with the C-steps served to boost the accuracy of chest compression by creating suitable environments for that in terms of height and posture(t=65.104, p=.000), to improve the accuracy of artificial respiration by providing a proper amount of ventilation(t=5.207, p=.000), and to bolster the self-confidence of the paramedics about CPR(t=-10.612, p=.000). In conclusion, the mounting of C-steps on the main stretcher is expected to be of use for the improvement of the survival rate of cardiac-arrest patients by ensuring the precise performance of high-quality CPR.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.3
• /
• pp.1320-1329
• /
• 2013

According to the comparing the quality and fatigue of Hands-only CPR with counting by middle-aged women who is most likely to witness the cardiac arrest. This paper wants to provide the basic data to establish a CPR education program for the role of the first responders. After conducted three hours of basic life support training, it divided into two 45-persons groups by assignment of probability. 2-minutes research conducted with dummy by dividing into Group-A that counting the number loudly during the Hands-Only CPR, And Group-B that does not counting the number during the Hands-Only CPR. Between the two groups, the quality of Hands-Only CPR does not showed its difference clearly and the downtime of Hands-Only CPR was reduced, Depending on the over time, the frequency that reduces the depth of Hands-Only CPR was also significantly lower. And after the Hands-Only CPR, the fatigability who felt themselves was also significantly lower.