• Contact us
  • E-Submission
ABOUT
BROWSE ARTICLES
JOURNAL POLICIES
FOR CONTRIBUTORS

Page Path

6
results for

"COVID-19"

Filter

Article category

Keywords

Publication year

Authors

"COVID-19"

Review Article

[English]
ABSTRACT

Over the past 3 years, the COVID-19 pandemic has posed significant challenges to the healthcare system, leading to delays in the diagnosis and treatment of various diseases due to the need for social distancing measures. Colorectal cancer has not been immune to these disruptions, and research in various countries has explored the impact of COVID-19 on the diagnosis and treatment of colorectal cancer. One notable consequence has been the postponement of colorectal cancer screenings, potentially resulting in disease progression, which can adversely affect surgical and oncological outcomes. Furthermore, the treatment approach for colorectal cancer may vary depending on the extent of disease progression and the healthcare policies implemented in response to the COVID-19 pandemic. In this systematic review, we examine treatment strategies, surgical outcomes, and oncological variables across multiple studies focusing on colorectal cancer treatment during the COVID-19 pandemic. The purpose of this analysis was to assess how medical policies enacted in response to the COVID-19 pandemic have influenced the outcomes of colorectal cancer treatment. We hope that this review will provide valuable insights and serve as a foundational resource for developing guidelines to address potential medical crises in the future.

  • 80 View
  • 0 Download

Original Articles

[English]
A Proactive Testing Strategy to COVID-19 for Reopening University Campus during Omicron Wave in Korea: Ewha Safe Campus (ESC) Project
Whanhee Lee, Kyunghee Jung-Choi, Hyunjin Park, Seunghee Jun, Nackmoon Sung, Sun-Hwa Lee, Misun Chang, Hee Jung Choi, Chung-Jong Kim, Hyesook Park, Eunhee Ha
Ewha Med J 2023;46(3):e7.   Published online July 31, 2023
DOI: https://doi.org/10.12771/emj.2023.e7
ABSTRACT Objectives:

Ewha Womans University launched an on-campus Coronavirus disease-19 (COVID-19) response system called Ewha Safety Campus (ESC) Project in collaboration with the Seegene Inc. RT-PCR diagnostic tests for COVID-19 were proactively provided to the participants. This study examines the effectiveness of the on-campus testing strategy in controlling the reproduction number (Rt) and identifying student groups vulnerable to infection.

Methods:

The ESC project was launched on March 2, 2022, with a pilot period from Feb 22 to March 1, 2022—the peak of the Omicron variant wave. We collected daily data on the RT-PCR test results of the students of Ewha Womans University from Mar 2 to Apr 30, 2022. We daily calculated Rt and compared it with that of the general population of Korea (women, people aged 20–29 years, and Seoul residents). We also examined the students vulnerable to the infection based on the group-specific Rt and positivity rate.

Results:

A lower Rt was observed about 2 weeks after the implementation of the ESC Project than that of the general population. The lower Rt persisted during the entire study period. Dormitory residents had a higher Rt. The positivity rate was higher in students who did not comply with quarantine guidelines and did not receive the second dose of the vaccine.

Conclusion:

The study provides scientific evidence for the effectiveness of the on-campus testing strategy and different infection vulnerabilities of students, depending on dormitory residence, compliance with the quarantine guidelines, and vaccination.

  • 84 View
  • 0 Download
[English]
Verification of the Performance of the Panbio COVID-19 Ag Rapid Test Device for Implementation in the Clinical Laboratory
Hae-Sun Chung, Ji Su Chung, Yeo-Jin Lee, Seonwoo Lee, Juhyun Jeong, Min-Kyung So, Miae Lee
Ewha Med J 2023;46(1):e2.   Published online January 31, 2023
DOI: https://doi.org/10.12771/emj.2023.e2
ABSTRACT Objectives:

The Panbio COVID-19 Ag Rapid Test Device (Panbio COVID-19 Ag, Abbott Rapid Diagnostics) is a lateral flow immunochromatographic assay targeting the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleoprotein in nasopharyngeal specimens for the diagnosis of coronavirus disease 2019 (COVID-19). This study aimed to verify the performance of the Panbio COVID-19 Ag for implementation in clinical laboratories.

Methods:

Sixty nasopharyngeal swab specimens (30 positive and 30 negative) dipped in transport medium, and COVID-19 was confirmed using real-time RT-PCR using Allplex SARS-CoV-2 assay (Seegene), were tested using the Panbio COVID-19 Ag. Reproducibility was evaluated using positive and negative control materials. Sensitivity and specificity were calculated based on the results of real-time RT-PCR as the standard test method.

Results:

Reproducibility was confirmed by the consistent results of repeated tests of the quality control materials. The overall sensitivity and specificity of Panbio COVID-19 Ag were 50.0% and 100.0%, respectively. Panbio COVID-19 Ag demonstrated high sensitivity (88.2%) in analyzing the detection limit cycle threshold (Ct) value of 26.67 provided by the manufacturer as a positive criterion, and the sensitivity was 100.0% for the positive criterion of Ct values <25, although it was less sensitive for Ct ≥25.

Conclusion:

Considering the high sensitivity for positive samples with Ct values <25 and the rapid turnaround of results, Panbio COVID-19 Ag can be used in clinical laboratories to diagnose COVID-19 in limited settings.

  • 94 View
  • 0 Download

Perspective

[English]
The COVID-19 Pandemic Response System at University Level: The Case of Safe Campus Model at Ewha Womans University
Kyunghee Jung-Choi, Nackmoon Sung, Sun Hwa Lee, Misun Chang, Hee Jung Choi, Chung-Jong Kim, Nam-Kyong Choi, Hanna Kim, Yi-Jun Kim, Whanhee Lee, Hyesook Park, Eunhee Ha
Ewha Med J 2022;45(4):e18.   Published online October 31, 2022
DOI: https://doi.org/10.12771/emj.2022.e18
ABSTRACT

In response to the changes in the Coronavirus disease 2019 (COVID-19) epidemic situation, Ewha Womans University established Ewha Safe Campus (ESC), an on-campus infection outbreak management system, to allow students and faculty members to safely resume face-to face classes in 2022. The COVID-19 testing station, Ewha Safe Station, is the core element of ESC. Symptomatic students and faculty members perform a combo swab self-PCR test or receive a nasopharyngeal swab PCR test from experts to prevent the spread of COVID-19 through early detection and management. ESC is significant in that it detects infection risks and proactively implements preemptive measures in a university. The COVID-19 health response system model at the university level was applied for the first time in South Korea, reaching a milestone in the history of university health in South Korea. In particular, it is highly valuable that the test was free of charge, as it enabled all of the examinees to have easy access to the test through joint cooperation with the Seegene Medical Foundation. This is a successful example of cooperation between schools and private institutions for public health improvement. In the future, the direct and indirect effects of the establishment and implementation of ESC need to be evaluated and confirmed, and areas requiring improvements need to be identified in preparation for another infectious disease outbreak in the future.

Citations

Citations to this article as recorded by  
  • A Proactive Testing Strategy to COVID-19 for Reopening University Campus during Omicron Wave in Korea: Ewha Safe Campus (ESC) Project
    Whanhee Lee, Kyunghee Jung-Choi, Hyunjin Park, Seunghee Jun, Nackmoon Sung, Sun-Hwa Lee, Misun Chang, Hee Jung Choi, Chung-Jong Kim, Hyesook Park, Eunhee Ha
    The Ewha Medical Journal.2023;[Epub]     CrossRef
  • 107 View
  • 0 Download
  • 1 Web of Science
  • 1 Crossref

Original Article

[Korean]
ABSTRACT Objectives:

Public health risks and anxiety have been increasing since the outbreak of Coronavirus disease 19 (COVID-19). The public expresses questions related to the COVID-19 issue through the web base. The aim of this study was to analyze public perception and sentiments of COVID-19 Pandemic in South Korea.

Methods:

We collected the text data (questions: 252,181) related to COVID-19 from Naver Knowledge-iN during January 1, 2020 to December 31, 2020. The search keywords included related to COVID-19 using Korean words for “SARS-Cov-2”, “COVID19”, “COVID-19”, “Wuhan pneumonia”, “Coronavirus”, “Corona”. A topic modeling analysis was used to investigate and search trends of public perception. The sentiment analysis was conducted to analyze of public emotions in the questions related to COVID-19. We performed the Pearson’s correlation analysis between daily number of COVID-19 cases and daily proportion of negative sentiment in documents related to COVID-19 by COVID-19 outbreak period.

Results:

A total of 241,776 documents used in this study. The most frequent words in the documents to appear cough, symptoms, tests, confirmed patients, mask and etc. Twenty topics (COVID-test, Economy, School, Hospital/Diagnose, Travel/Overseas, Health, Social issue, Symptom 1 (respiratory), Relationships, Symptom 2 (e.g., fever), Workplace, Mask/Social distancing, infection/Vaccine, Stimulus Package, Family, Delivery Service, Unclassified, Region, Study/Exam, Worry, Anxiety) were extracted using the topic modeling. There was a positive association between the daily counts of COVID-19 patients and proportion of negative sentiment. By COVID-19 period, Stage 4 had the highest correlation.

Conclusion:

This study identified the South Korean public’s interest and emotions about COVID-19 during the prolonged pandemic crisis. (Ewha Med J 2022;45(2):46-54)

  • 143 View
  • 1 Download
Review Article
[Korean]
Laboratory Diagnosis of COVID-19 in Korea
Ewha Med J 2021;44(1):1-10.   Published online January 31, 2021
DOI: https://doi.org/10.12771/emj.2021.44.1.1

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 2019 (COVID-19), is a type of human coronavirus that causes severe pneumonia, similar to SARS-CoV-1 and Middle East respiratory syndrome coronavirus. In Korea, the SARS-CoV-2 testing has started quickly from February 2020 to respond to the COVID-19 pandemic. In this article, I would like to introduce the characteristics of coronavirus and PCR test methods that play a large role in COVID-19 quarantine measures. Real-time reverse transcription (RT)-PCR is one of the molecular diagnostic method, and it detect SARS-CoV-2 RNA by amplifying SARS-CoV-2 specific RdRp (RNA-dependent RNA polymerase) gene and E (envelope) gene at the same time. Real-time RT-PCR is currently the most reliable test that confirming COVID-19 and is in use worldwide. Real-time RT-PCR test is recommended for COVID-19 confirmatory diagnosis in Korea, but this test requires dedicated equipment, reagents, experienced technicians and laboratory medicine specialists, and it takes about a few hours to a day to report. Rapid molecular testing results in one to two hours with a simple procedure. Antigen test is less sensitive than real-time RT-PCR and can only be used as a secondary role of diagnosis. As the global COVID-19 pandemic progresses, diagnostic testing guidelines and recommendations may vary and will be updated as scientific evidence and experience of the COVID-19 accumulates.

Citations

Citations to this article as recorded by  
  • 2023년 수도권질병대응센터에서 수행한 해외 유입 코로나바이러스감염증-19 진단검사 및 변이분석
    은정 이, 사현 홍, 상미 박, 영지 김, 지혜 한, 한슬 장, 가람 강, 규식 장, 일환 김, 진선 노, 채영 이, 은진 김, 혁 주, 정구 남
    Public Health Weekly Report.2024; 17(41): 1703.     CrossRef
  • Ursodeoxycholic acid may protect from severe acute respiratory syndrome coronavirus 2 Omicron variant by reducing angiotensin‐converting enzyme 2
    Kyungmin Lee, Yujeong Na, Minjin Kim, Dongjin Lee, Jongseo Choi, Gwanyoung Kim, Min‐Soo Kim
    Pharmacology Research & Perspectives.2024;[Epub]     CrossRef
  • Verification of the Performance of the Panbio COVID-19 Ag Rapid Test Device for Implementation in the Clinical Laboratory
    Hae-Sun Chung, Ji Su Chung, Yeo-Jin Lee, Seonwoo Lee, Juhyun Jeong, Min-Kyung So, Miae Lee
    The Ewha Medical Journal.2023;[Epub]     CrossRef
  • Inconsistent Polymerase Chain Reaction Test Results From the Upper And Lower Airways of a Patient Who Underwent Total Laryngectomy During the Incubation Period for Coronavirus Disease
    Dong Yun Lee, Myung Jin Ban
    Korean Journal of Otorhinolaryngology-Head and Neck Surgery.2023; 66(7): 485.     CrossRef
  • Diagnostic Performance Evaluation of SARS-CoV-2 Antigen Test Compared with Reverse Transcription Polymerase Chain Reaction
    Sae Am Song
    Journal of Laboratory Medicine and Quality Assurance.2023; 45(1): 25.     CrossRef
  • A Case of False Negativity With COVID-19 Diagnostic Test in Total Laryngectomee
    Moon Seung Beag, Hyeok Ro Kwon, Seung Woo Kim
    Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics.2022; 33(1): 54.     CrossRef
  • Clinical epidemiological applicability of real-time polymerase chain reaction for COVID-19
    Geehyuk Kim, Jun-Kyu Kang, Jungho Kim, Jiyoung Lee, Jin Gwack
    Osong Public Health and Research Perspectives.2022; 13(4): 252.     CrossRef
  • Comparison Study of Molecular Diagnostic Reagents for COVID-19 Pooling Test
    Dong Hee Seo, Geun-ju Son, Jeong-woo Kang
    Journal of Laboratory Medicine and Quality Assurance.2021; 43(4): 214.     CrossRef
  • 201 View
  • 1 Download
  • 3 Web of Science
  • 8 Crossref
TOP