1.Cancer therapy‑related cardiac dysfunction and the role of cardiovascular imaging: systemic review and opinion paper from the Working Group on Cardio‑Oncology of the Korean Society of Cardiology
Iksung CHO ; Seng‑Chan YOU ; Min‑Jae CHA ; Hui‑Jeong HWANG ; Eun Jeong CHO ; Hee Jun KIM ; Seong‑Mi PARK ; Sung‑Eun KIM ; Yun‑Gyoo LEE ; Jong‑Chan YOUN ; Chan Seok PARK ; Chi Young SHIM ; Woo‑Baek CHUNG ; Il Suk SOHN
Journal of Cardiovascular Imaging 2024;32(1):13-
Cardio-oncology is a critical field due to the escalating significance of cardiovascular toxicity as a side effect of anti‑ cancer treatments. Cancer therapy-related cardiac dysfunction (CTRCD) is a prevalent condition associated with car‑ diovascular toxicity, necessitating effective strategies for prediction, monitoring, management, and tracking. This comprehensive review examines the definition and risk stratification of CTRCD, explores monitoring approaches during anticancer therapy, and highlights specific cardiovascular toxicities linked to various cancer treatments. These include anthracyclines, HER2-targeted agents, vascular endothelial growth factor inhibitors, immune checkpoint inhibitors, chimeric antigen receptor T-cell therapies, and tumor-infiltrating lymphocytes therapies. Incorporating the Korean data, this review offers insights into the regional nuances in managing CTRCD. Using systematic follow-up incorporating cardiovascular imaging and biomarkers, a better understanding and management of CTRCD can be achieved, optimizing the cardiovascular health of both cancer patients and survivors.
2.Persistent right aortic arch with aberrant left subclavian artery originating from the patent ductus arteriosus in a dog: a case report
Chi-Oh YUN ; Gunha HWANG ; Sumin KIM ; Jin-Yoo KIM ; Seunghwa LEE ; Dongbin LEE ; Jihye CHA ; Hee Chun LEE ; Tae Sung HWANG
Korean Journal of Veterinary Research 2024;64(2):e11-
A 4-month-old intact male Sapsaree dog was referred due to a history of postprandial regurgitation following consumption of solid food. Thoracic radiography revealed focal leftward displacement of the thoracic trachea at T1 to T4 vertebrae levels. Barium contrast radiography revealed focal dilation of the cranial thoracic esophagus at the heart base level. Persistent right aortic arch (PRAA) with an aberrant left subclavian artery branching from the patent ductus arteriosus was diagnosed by computed tomography angiography (CTA). Although barium contrast radiography can presumptive diagnose PRAA, CTA should be considered for identifying additional vascular anomalies, specific types, and surgical planning.
3.Two Years of Experience and Methodology of Korean COVID-19 Living Clinical Practice Guideline Development
Miyoung CHOI ; Hyeon-Jeong LEE ; Su-Yeon YU ; Jimin KIM ; Jungeun PARK ; Seungeun RYOO ; Inho KIM ; Dong Ah PARK ; Young Kyung YOON ; Joon-Sung JOH ; Sunghoon PARK ; Ki Wook YUN ; Chi-Hoon CHOI ; Jae-Seok KIM ; Sue SHIN ; Hyun KIM ; Kyungmin HUH ; In-Seok JEONG ; Soo-Han CHOI ; Sung Ho HWANG ; Hyukmin LEE ; Dong Keon LEE ; Hwan Seok YONG ; Ho Kee YUM
Journal of Korean Medical Science 2023;38(23):e195-
Background:
In Korea, during the early phase of the coronavirus disease 2019 (COVID-19) pandemic, we responded to the uncertainty of treatments under various conditions, consistently playing catch up with the speed of evidence updates. Therefore, there was high demand for national-level evidence-based clinical practice guidelines for clinicians in a timely manner. We developed evidence-based and updated living recommendations for clinicians through a transparent development process and multidisciplinary expert collaboration.
Methods:
The National Evidence-based Healthcare Collaborating Agency (NECA) and the Korean Academy of Medical Sciences (KAMS) collaborated to develop trustworthy Korean living guidelines. The NECA-supported methodological sections and 8 professional medical societies of the KAMS worked with clinical experts, and 31 clinicians were involved annually. We developed a total of 35 clinical questions, including medications, respiratory/critical care, pediatric care, emergency care, diagnostic tests, and radiological examinations.
Results:
An evidence-based search for treatments began in March 2021 and monthly updates were performed. It was expanded to other areas, and the search interval was organized by a steering committee owing to priority changes. Evidence synthesis and recommendation review was performed by researchers, and living recommendations were updated within 3–4 months.
Conclusion
We provided timely recommendations on living schemes and disseminated them to the public, policymakers and various stakeholders using webpages and social media.Although the output was successful, there were some limitations. The rigor of development issues, urgent timelines for public dissemination, education for new developers, and spread of several new COVID-19 variants have worked as barriers. Therefore, we must prepare systematic processes and funding for future pandemics.
4.The Profile of Early Sedation Depth and Clinical Outcomes of Mechanically Ventilated Patients in Korea
Dong-gon HYUN ; Jee Hwan AHN ; Ha-Yeong GIL ; Chung Mo NAM ; Choa YUN ; Jae-Myeong LEE ; Jae Hun KIM ; Dong-Hyun LEE ; Ki Hoon KIM ; Dong Jung KIM ; Sang-Min LEE ; Ho-Geol RYU ; Suk-Kyung HONG ; Jae-Bum KIM ; Eun Young CHOI ; JongHyun BAEK ; Jeoungmin KIM ; Eun Jin KIM ; Tae Yun PARK ; Je Hyeong KIM ; Sunghoon PARK ; Chi-Min PARK ; Won Jai JUNG ; Nak-Jun CHOI ; Hang-Jea JANG ; Su Hwan LEE ; Young Seok LEE ; Gee Young SUH ; Woo-Sung CHOI ; Keu Sung LEE ; Hyung Won KIM ; Young-Gi MIN ; Seok Jeong LEE ; Chae-Man LIM
Journal of Korean Medical Science 2023;38(19):e141-
Background:
Current international guidelines recommend against deep sedation as it is associated with worse outcomes in the intensive care unit (ICU). However, in Korea the prevalence of deep sedation and its impact on patients in the ICU are not well known.
Methods:
From April 2020 to July 2021, a multicenter, prospective, longitudinal, noninterventional cohort study was performed in 20 Korean ICUs. Sedation depth extent was divided into light and deep using a mean Richmond Agitation–Sedation Scale value within the first 48 hours. Propensity score matching was used to balance covariables; the outcomes were compared between the two groups.
Results:
Overall, 631 patients (418 [66.2%] and 213 [33.8%] in the deep and light sedation groups, respectively) were included. Mortality rates were 14.1% and 8.4% in the deep and light sedation groups (P = 0.039), respectively. Kaplan-Meier estimates showed that time to extubation (P < 0.001), ICU length of stay (P = 0.005), and death P = 0.041) differed between the groups. After adjusting for confounders, early deep sedation was only associated with delayed time to extubation (hazard ratio [HR], 0.66; 95% confidence inter val [CI], 0.55– 0.80; P < 0.001). In the matched cohort, deep sedation remained significantly associated with delayed time to extubation (HR, 0.68; 95% 0.56–0.83; P < 0.001) but was not associated with ICU length of stay (HR, 0.94; 95% CI, 0.79–1.13; P = 0.500) and in-hospital mortality (HR, 1.19; 95% CI, 0.65–2.17; P = 0.582).
Conclusion
In many Korean ICUs, early deep sedation was highly prevalent in mechanically ventilated patients and was associated with delayed extubation, but not prolonged ICU stay or in-hospital death.
5.Trauma Exposure and Suicidal Ideation among Korean Male Firefighters: Examining the Moderating Roles of Organizational Climate
Chi-Yun BACK ; Dae-Sung HYUN ; Sei-Jin CHANG ; Da-Yee JEUNG
Safety and Health at Work 2023;14(1):71-77
Background:
This study investigated the relationship between trauma exposure and suicidal ideation. Moreover, this study examines the moderating roles of organizational climate on the association between trauma exposure and suicidal ideation in Korean male firefighters.
Methods:
A total of 15,104 male firefighters who completed a questionnaire were analyzed. The data were obtained using an online self-administered questionnaire from the Firefighter Research on Enhancement of Safety and Health Study. Poisson regression analysis was performed to determine the effects of trauma exposure on suicidal ideation and the moderating effect of organizational climate.
Results:
The results showed that 389 firefighters (2.6%) responded that they had experienced suicidal ideation. In the final model, trauma exposure was positively related to suicidal ideation (adjusted risk ratio [aRR], 1.076; 95% confidence interval [CI]: 1.051–1.103), and organizational climate was negatively associated with suicidal ideation (aRR, 0.772; 95% CI: 0.739–0.806). Additionally, the interaction term (trauma exposure × organizational climate) was related to suicidal ideation (aRR, 1.016; 95% CI: 1.009–1.023).
Conclusions
This study suggests that trauma exposure might play a significant role in developing suicidal ideation and that positive organizational climate moderates the negative effects of trauma exposure on suicidal ideation among firefighters. It is necessary to perform a follow-up study of various intervention strategies to maintain a healthy organizational climate or work environment. Such interventions should promote lasting trust within teams, provide social support and belonging, and nurture job value.
6.Mediating Effects of Burnout in the Association Between Emotional Labor and Turnover Intention in Korean Clinical Nurses
Chi-Yun BACK ; Dae-Sung HYUN ; Da-Yee JEUNG ; Sei-Jin CHANG
Safety and Health at Work 2020;11(1):88-96
Background:
The current lack of the number of nurses and high nurse turnover rate leads to major problems for the health-care system in terms of cost, patient care ability, and quality of care. Theoretically, burnout may help link emotional labor with turnover intention. The purpose of this study was to investigate the mediating effect of burnout in the association between emotional labor and turnover intention in Korean clinical nurses.
Methods:
Using data collected from a sample of 606 nurses from six Korean hospitals, we conducted a multiple regression analysis to determine the relationships among clinical nurses' emotional labor, burnout, and turnover intention, looking at burnout as a mediator.
Results:
The results fully and partially support the mediating role of burnout in the relationship between the subfactors of emotional labor and turnover intention. In particular, burnout partially mediated the relationship between emotional disharmony and hurt, organizational surveillance and monitoring, and lack of a supportive and protective system in the organization. In addition, we found that burnout has a significant full mediation effect on the relationship between overload and conflicts in customer service and turnover intention. Although the mediating effect of burnout was significantly associated with the demands and regulation of emotions, no significant effects on turnover intention were found.
Conclusion
To reduce nurses' turnover, we recommend developing strategies that target both burnout and emotional labor, given that burnout fully and partially mediated the effects of emotional labor on turnover intention, and emotional labor was directly associated with turnover intention.
7.A clinical retrospective study comparing thoracic epidural catheterization between awake and anesthetized patients.
Seok Jin LEE ; Sung Ae CHO ; Chi Bum IN ; Tae Yun SUNG ; Po Soon KANG
Anesthesia and Pain Medicine 2019;14(1):95-101
BACKGROUND: The clinical outcomes and safety of thoracic epidural catheterization in anesthetized adult patients has not yet been established. The purpose of this study was to compare clinical differences between epidural catheterization performed before and after anesthesia for postoperative pain control. METHODS: The medical records of 549 patients who received thoracic epidural catheterization before (awake group, n = 303) or after (anesthetized group, n = 246) induction of anesthesia for major abdominal surgery were reviewed retrospectively. RESULTS: The catheter insertion time (1.6 ± 1.5 vs. 1.1 ± 1.2 min; 95% confidence interval [95% CI], 0.3–0.8; effect size, 0.368; P < 0.001) and number of attempts required for successful epidural catheterization (1 [1, 3] vs. 1 [1, 2], P = 0.003) were increased in the awake group. The incidence rates of dural puncture, vascular injury and postoperative paresthesia were similar between the two groups. The median surgical site numerical rating scale pain score (0 = no pain, 10 = worst pain imaginable) was lower in the awake group than in the anesthetized group (3 vs. 4 on postoperative day 1, P < 0.001; and 2 vs. 3 on postoperative day 3, P = 0.002). Serious complications, including meningitis, epidural abscess, epidural hematoma, spinal cord injury, and paraplegia, were not observed in either group. CONCLUSIONS: Successful epidural catheterization before induction of anesthesia required more attempts versus after anesthesia. Overall complication rates of thoracic epidural catheterization were similar regardless of the timing of the procedure.
Adult
;
Analgesia, Epidural
;
Anesthesia
;
Catheterization*
;
Catheters*
;
Epidural Abscess
;
Hematoma, Epidural, Spinal
;
Humans
;
Incidence
;
Medical Records
;
Meningitis
;
Pain, Postoperative
;
Paraplegia
;
Paresthesia
;
Postoperative Complications
;
Punctures
;
Retrospective Studies*
;
Vascular System Injuries
8.Antitumor effect of TW-37, a BH3 mimetic in human oral cancer
Chi Hyun AHN ; Won Woo LEE ; Yun Chan JUNG ; Ji Ae SHIN ; Kyoung Ok HONG ; Sujung CHOI ; Neeti SWARUP ; Jihoon KIM ; Min Hye AHN ; Minjung JUNG ; Sung Dae CHO ; Bohwan JIN
Laboratory Animal Research 2019;35(4):194-201
TW-37 is a small molecule B cell lymphoma-2 (Bcl-2) homology 3 mimetic with potential anticancer activities. However, the in vivo anti-cancer effect of TW-37 in human oral cancer has not been properly studied yet. Here, we attempted to confirm antitumor activity of TW37 in human oral cancer. TW-37 significantly inhibited cell proliferation and increased the number of dead cells in MC-3 and HSC-3 human oral cancer cell lines. TW-37 enhanced apoptosis of both cell lines evidenced by annexin V/propidium iodide double staining, sub-G1 population analysis and the detection of cleaved poly (ADP-ribose) polymerase and caspase-3. In addition, TW-37 markedly downregulated the expression of Bcl-2 protein, while not affecting Bcl-xL or myeloid cell leukemia-1. In vivo, TW-37 inhibited tumor growth in a nude mice xenograft model without any significant liver and kidney toxicities. Collectively, these data reveal that TW-37 may be a promising small molecule to inhibit human oral cancer.
Animals
;
Apoptosis
;
Caspase 3
;
Cell Line
;
Cell Proliferation
;
Heterografts
;
Humans
;
Kidney
;
Liver
;
Mice
;
Mice, Nude
;
Mouth Neoplasms
;
Myeloid Cells
9.Comparison of the clinical performance of airway management with the i-gel® and laryngeal mask airway Supreme™ in geriatric patients: a prospective and randomized study
Chi Bum IN ; Sung Ae CHO ; Seok Jin LEE ; Tae Yun SUNG ; Choon Kyu CHO
Korean Journal of Anesthesiology 2019;72(1):39-46
BACKGROUND: Geriatric patients are susceptible to respiratory and hemodynamic adverse events during endotracheal intubation and extubation due to anatomic and physiological changes with aging. Supraglottic airway devices (SADs) provide reduced airway morbidity and increased hemodynamic stability in adults. However, studies that have compared the clinical performance of SADs in geriatric patients are limited. Therefore, we evaluated the clinical performance of airway management with i-gel® and laryngeal mask airway Supreme (LMA Supreme™) in geriatric patients. METHODS: The subjects were American Society of Anesthesiologists physical status classification I–III geriatric (65–85 years) patients who underwent elective surgery with general anesthesia and were randomly allocated into the i-gel® group and the LMA Supreme™ group. We compared the time for successful insertion on a first attempt as a primary outcome, and the secondary outcomes were success rate, ease of insertion, maneuver for successful ventilation, oropharyngeal leak pressure, gastric insufflation, fiberoptic view grades, ventilator problems, and adverse events. RESULTS: Insertion time was significantly shorter for the i-gel® than the LMA Supreme™ (21.4 ± 6.8 vs. 29.3 ± 9.9 s; P = 0.011). The i-gel® was also easier to insert than the LMA Supreme™ (P = 0.014). Gastric insufflation was less frequent with the i-gel® than the LMA Supreme™ (0% vs. 31.3%; P = 0.013). Other measurements were comparable between groups. CONCLUSIONS: Both devices can be safely applied to geriatric patients with similar success rates and oropharyngeal leak pressures. However, inserting the i-gel® was faster and easier compared to the LMA Supreme™ in geriatric patients.
Adult
;
Aging
;
Airway Management
;
Anesthesia, General
;
Classification
;
Hemodynamics
;
Humans
;
Insufflation
;
Intubation
;
Intubation, Intratracheal
;
Laryngeal Masks
;
Prospective Studies
;
Ventilation
;
Ventilators, Mechanical
10.Erratum: Addition of a Co-Author: Etiology of Invasive Bacterial Infections in Immunocompetent Children in Korea (2006–2010): a Retrospective Multicenter Study
Kyuyol RHIE ; Eun Hwa CHOI ; Eun Young CHO ; Jina LEE ; Jin Han KANG ; Dong Soo KIM ; Yae Jean KIM ; Youngmin AHN ; Byung Wook EUN ; Sung Hee OH ; Sung Ho CHA ; Young Jin HONG ; Kwang Nam KIM ; Nam Hee KIM ; Yun Kyung KIM ; Jong Hyun KIM ; Taekjin LEE ; Hwang Min KIM ; Kun Song LEE ; Chun Soo KIM ; Su Eun PARK ; Young Mi KIM ; Chi Eun OH ; Sang Hyuk MA ; Dae Sun JO ; Young Youn CHOI ; Hoan Jong LEE
Journal of Korean Medical Science 2019;34(25):e182-
The authors regret that one co-author (Kyung-Hyo Kim) was missing in the article.

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