Experiences of Video-assisted Thoracic Surgery in Trauma

( Dongsub Noh ),( Chan-kyu Lee ),( Jung Joo Hwang ),( Hyun Min Cho ) 대한외상학회 2017 大韓外傷學會誌 Vol.30 No.3

Purpose: Nowadays, Video-Assisted Thoracic Surgery (VATS) is widely used for its benefits, low post-operative pain, excellent anesthetic result and complete visualization of intrathoracic organs. Despite of these advantages, VATS has not yet been widely used in trauma patients. In this study, we aimed to investigate the usefulness of VATS in the chest trauma area. Methods: From January 2016 to December 2016, 203 patients underwent surgical treatment for chest trauma. Their medical records were analyzed retrospectively. Results: Eleven patients underwent thoracic surgery by VATS. Six patients were unstable vital sign in the emergency room. Two patients underwent emergency surgery and the rest patients underwent planned surgery. The common surgeries were VATS hematoma evacuation and wedge resection. There was no conversion to thoracotomy. The surgery proceeded without any problems for all patients. Conclusions: VATS would be an effective diagnostic and therapeutic modality in chest trauma patients. It can be applied to retained hemothorax, persistent pneumothorax, suspicious diaphragm injury and even coagulation of bleeder.

The Changes in Epidemiology of Imipenem-Resistant Acinetobacter baumannii Bacteremia in a Pediatric Intensive Care Unit for 17 Years

Dongsub Kim,Lee Haejeong,Choi Joon-sik,Croney Christina M.,Ki-Sup Park,Park Hyo Jung,Cho Joongbum,Son Sohee,Kim Jin Yeong,Choi Soo-Han,Huh Hee Jae,Ko Kwan Soo,Lee Nam Yong,Yae-Jean Kim 대한의학회 2022 Journal of Korean medical science Vol.37 No.24

Background: Acinetobacter baumannii infections cause high morbidity and mortality in intensive care unit (ICU) patients. However, there are limited data on the changes of longterm epidemiology of imipenem resistance in A. baumannii bacteremia among pediatric ICU (PICU) patients. Methods: A retrospective review was performed on patients with A. baumannii bacteremia in PICU of a tertiary teaching hospital from 2000 to 2016. Antimicrobial susceptibility tests, multilocus sequence typing (MLST), and polymerase chain reaction for antimicrobial resistance genes were performed for available isolates. Results: A. baumannii bacteremia occurred in 27 patients; imipenem-sensitive A. baumannii (ISAB, n = 10, 37%) and imipenem-resistant A. baumannii (IRAB, n = 17, 63%). There was a clear shift in the antibiogram of A. baumannii during the study period. From 2000 to 2003, all isolates were ISAB (n = 6). From 2005 to 2008, both IRAB (n = 5) and ISAB (n = 4) were isolated. However, from 2009, all isolates were IRAB (n = 12). Ten isolates were available for additional test and confirmed as IRAB. MLST analysis showed that among 10 isolates, sequence type 138 was predominant (n = 7). All 10 isolates were positive for OXA-23-like and OXA-51-like carbapenemase. Of 27 bacteremia patients, 11 were male (41%), the median age at bacteremia onset was 5.2 years (range, 0–18.6 years). In 33% (9/27) of patients, A. baumannii was isolated from tracheal aspirate prior to development of bacteremia (median, 8 days; range, 5–124 days). The overall case-fatality rate was 63% (17/27) within 28 days. There was no statistical difference in the case fatality rate between ISAB and IRAB groups (50% vs. 71%; P = 0.422). Conclusion: IRAB bacteremia causes serious threat in patients in PICU. Proactive infection control measures and antimicrobial stewardship are crucial for managing IRAB infection in PICU.

Scabies mimicking graft versus host disease in a hematopoietic cell transplant recipient

Kim, Dongsub,Choi, Soo-Han,Lee, Dong Youn,Kim, Juyoun,Cho, Eunjoo,Yoo, Keon Hee,Koo, Hong Hoe,Kim, Yae-Jean The Korean Pediatric Society 2018 Clinical and Experimental Pediatrics (CEP) Vol.61 No.11

Scabies is a highly contagious skin infestation caused by the mite, Sarcoptes scabiei var. hominis. Complex responses to scabies mites in the innate, humoral, and cellular immune systems can cause skin inflammation and pruritus. Diagnosis can be challenging because scabies resembles other common skin conditions. We report the first Korean case of scabies in a hematopoietic cell transplant (HCT) recipient, initially suspected of skin graft versus host disease (GVHD). A T-cell acute lymphocytic leukemia patient underwent a sibling-matched allogeneic HCT and developed pruritus after cell engraftment. Treatment for GVHD did not improve the symptoms. He was diagnosed with scabies 30 days after the onset of symptoms.

A contact investigation after exposure to a child with disseminated tuberculosis mimicking inflammatory bowel disease

Kim, Dongsub,Lee, Sodam,Kang, Sang-Hee,Park, Mi-Sun,Yoo, So-Young,Jeon, Tae Yeon,Choi, JoonSik,Kim, Bora,Choi, Jong Rim,Cho, Sun Young,Chung, Doo Ryeon,Choe, Yon Ho,Kim, Yae-Jean The Korean Pediatric Society 2018 Clinical and Experimental Pediatrics (CEP) Vol.61 No.11

Purpose: Tuberculosis (TB) is one of the most important diseases that cause significant mortality and morbidity in young children. Data on TB transmission from an infected child are limited. Herein, we report a case of disseminated TB in a child and conducted a contact investigation among exposed individuals. Methods: A 4-year-old child without Bacille Calmette-$Gu{\acute{e}}rin$ vaccination was diagnosed as having culture-proven disseminated TB. The child initially presented with symptoms of inflammatory bowel disease, and nosocomial and kindergarten exposures were reported. The exposed individuals to the index case were divided into 3 groups, namely household, nosocomial, or kindergarten contacts. Evaluation was performed following the Korean guidelines for TB. Kindergarten contacts were further divided into close or casual contacts. Chest radiography and tuberculin skin test or interferon-gamma-releasing assay were performed for the contacts. Results: We examined 327 individuals (3 household, 10 nosocomial, and 314 kindergarten contacts), of whom 18 (5.5%), the brother of the index patient, and 17 kindergarten children were diagnosed as having latent TB infection (LTBI). LTBI diagnosis was more frequent in the children who had close kindergarten contact with the index case (17.1% vs. 4.4%, P=0.007). None of the cases had active TB. Conclusion: This is the first reported case of TB transmission among young children from a pediatric patient with disseminated TB in Korea. TB should be emphasized as a possible cause of chronic diarrhea and failure to thrive in children. A national TB control policy has been actively applied to identify Korean children with LTBI.

Web Server Implementation for Web Page Fingerprinting

Subin Park,Dongsub Cho 한국멀티미디어학회 2008 한국멀티미디어학회 국제학술대회 Vol.2008 No.-

The Digital fingerprinting is inserting skill that inserts recognized buyer's information. In this paper, we use fingerprinting technique and insert information that satisfy condition of a fingerprinting technology for all entered Web pages to web server. Thus, we present algorithm that can transmit including user's IP information without change of web page. Finally we search advantage of server that do web page fingerprinting.

A Case with Multiple Fungal Coinfections in a Patient who Presented with Pancoast Syndrome

( Hyungsuk Jin ),( Dongsub Kim ),( Joon-sik Choi ),( Hee Jae Huh ),( Nam Yong Lee ),( Joungho Han ),( Hee Won Cho ),( Youngeun Ma ),( Tae Yeon Jeon ),( So-young Yoo ),( Keon Hee Yoo ),( Hong Hoe Koo ) 대한소아감염학회 2021 Pediatric Infection and Vaccine Vol.28 No.1

소아암 환자에서 발생하는 침습성 진균 감염은 사망과 후유증에 이르는 중대한 감염이다. 18세 남자 환자가 호중구감소 기간 동안 입원하여 치료받던 중 우측 견관절과 우측 팔에 감각이상과 신경쇠약을 호소하였고, 우측폐상엽의 폐렴이 진단되었다. 기관지의 조직학적 소견과 폐 수술검체에서 시행한 polymerase chain reaction (PCR)로 털곰팡이증을 확진하였으며, 흉수액의 PCR로 페니실리움 디쿰벤스 감염, 갈락토마난 항원법으로 아스페르길루스증을 추정하였다. 환자는 백혈병이 치료되지 못하고 Staphylococcus epidermidis 패혈증이 합병되어 사망하였다. 본 증례에서는 판코스트 증후군의 증상을 보인 환자에서 진단된 다발성 폐진균증을 보고 하는 바이다. Invasive fungal infection (IFI) is a serious threat to pediatric patients with cancer given high morbidity and mortality. We present an 18-year-old male with precursor T-cell lymphoblastic leukemia who developed Pancoast syndrome, presented with paresthesia and numbness in the right shoulder and arm during a neutropenic fever period. He was diagnosed with pneumonia in the right upper lung field. He was later found to have an invasive pulmonary fungal infection caused by multiple fungi species, including Rhizomucor, confirmed by histology and polymerase chain reaction (PCR) (proven infection), Penicillium decumbens diagnosed by PCR, and Aspergillus suspected from galactomannan assay (probable infection). Unfortunately, the patient's condition further worsened owing to the aggravation of leukemia, chemotherapy-induced neutropenia, and bacterial coinfection, leading to multiorgan failure and death. Here, we report a case of IFI caused by multiple fungal species that presented as Pancoast syndrome.

DYNAMIC CAPACITY PREDICTION BASED UNSTRUCTURED SUPER-PEER SYSTEM

Suhong Min,Dongsub Cho 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-

The Peer-to-Peer (P2P) systems have grown significantly over last few years due to their high potential of sharing various resources. Super-peer based P2P systems have been emerged for efficiency resources sharing. They divide peers into two layers, SPs (Super-Peer) and OPs (Ordinary-Peer). SPs deal with all queries instead of OPs. Therefore, in these systems, selecting SP is important problem, but it has received little attention from the research community. In this study, we propose ISP2P (Intelligent Super-peer based P2P system), which can provide the best SP and control dynamic workload by analyzing dynamic capacity between peers.

Design of a Secure Remote Control System with High Availability in TPM

Chinyere Kennedy,DongSub. Cho 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

In this paper we present a discovery and communication system design for high availability of security and privacy. Although TPM computing hardware technology is widely available in today’ market, we believe that one of the key factors in making TPM a very trusted securing device is its capability in authentication of device keys. Currently TPM is only one device in a given system which can cause a lot of damages if not properly handled. We designed a dual TPM device to resolve this situation with high availability that is remotely controlled. We described the design of dual TPM and the architecture and the scenario in which it found useful in our device server computing environment.

Secure Web page Transmit Environment with a Trustd platform

Chinyere Kennedy,DongSub Cho 대한전기학회 2012 정보 및 제어 심포지엄 논문집 Vol.2012 No.10

UBIQUITOUS SMART CARDS FOR ACCESSING THE CUSTOMER'S BODY METRIC RECORD

JinHui Kyung,DongSub Cho 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-

The benefits of bio metric smart cards to support e-commerce in purchasing any goods on-line presents a new paradigm for e-business systems. Human body has many physical metric to identify every parts. This paper describes the framework of java card web services that is being developed to provide the seamless access interface between web browser and java embedded smart cards. Importantly, the smart card is viewed as a mobile storage for storing body metrics and relevant java applets to browse or update its contents. Normally, customer don't go to e-shop or off-line shopping mall without any physical body information. If customer's body information is used for selecting best item with prior information stored in mobile smart card, it would be enhance the buy and sell process efficiently. As customers require better satisfaction in all the time, mobile smart card interface give them quick response to buy best item in ubiquitous environment. We propose new way of storing body metric information using XML scheme and java applets.