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Lung Transplantation: a 4-year Single-centre Experience
( Jiwon Lyu ),( Seong Il Park ),( Dong Kwan Kim ),( Yong Hee Kim ),( Hyeong Ryul Kim ),( Se Hoon Choi ),( Tae Jin Yun ),( Sung Ho Jung ),( Tae Sun Shim ),( Sang Bum Hong ),( Jin Won Huh ),( Jae Young 대한결핵 및 호흡기학회 2012 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.114 No.-
Objectives: Lung transplantation is currently the ultimate treatment option for patients with end-stage lung disease refractory to medical treatment. In reviewing our 4-year experience we sought to evaluate complications and survival after sequential bilateral lung transplantation. Methods: From October, 2008 to June, 2012, we performed 18 lung transplantation procedures. Underlying lung diseases were idiopathic pulmonary fibrosis in 6 patients; toxic inhalation injury in 5; post-bone marrow transplantation bronchiolitis obliterance in 3; acute respiratory distress syndrome in 2; lymphangioleiomyomatosis in 1, and angiosarcoma in 1. Data for all patients were collected and analyzed retrospectively. Procedures were carried out using standardized protocols. Results: Thirteen patients underwent double lung and five heart-lung transplantations. Among them, 12 patients (66.7%) underwent high-emergency lung transplantation. Early complications were prolonged air leak, vocal cord palsy, critical illness polyneuropathy, necrotizing pancreatitis, and renal failure requiring dialysis. Late complications consisted of airway complications (n=6), gastro-intestinal complications (n=7), diabetes mellitus (n=2), osteopenia (n=2), and post-transplantation lymphoproliferative disorders (n=1). There was no peri-operative death. Two patients (11.1%) died from 6 and 8 months after lung transplantation, because of the infection. Conclusion: We conclude that lung transplantation is a viable option for selected patients with end-stage lung disease refractory to medical treatment.
Update in Treatment for NTM-PD
( Jiwon Lyu ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.-
The prevalence and mortality of nontuberculous mycobacterial pulmonary disease (NTM-PD) have continuously increased worldwide and the most recent guidelines for NTM-PD have been released in 2020 (American Thoracic Society [ATS], European Respiratory Society [ERS], European Society of clinical Microbiology and Infectious Diseases [ESCMID], and Infectious Diseases Society of America [IDSA] guideline). Unfortunately, there has been no new guideline added since then, and there has been no significant change in the treatment of NTM-PD. Therefore, in this presentation, I would like to summarize the latest guidelines and introduce recent researches related to them. At the end of this section there is separate presentation on new drugs/ therapies for NTM-PD, so related contents was excluded.
류지원 ( Jiwon Lyu ),심태선 ( Tae Sun Shim ) 대한내과학회 2021 대한내과학회지 Vol.96 No.5
The most important thing for the management of drug susceptible pulmonary tuberculosis is to diagnose active pulmonary tuberculosis as soon as possible and prevent the occurrence of new patients through appropriate treatment. Therefore, it should be a priority to quickly detect tuberculosis mycobacterium and quickly exclude drug-resistant tuberculosis before treatment begins. To this end, recent guidelines recommend the general use of Mycobacterium tuberculosis (MTB) polymerase chain reaction (PCR) tests, Xpert MTB/RIF tests, and rapid sensitivity tests through line probe assay (LPA). In addition, if the results of the test are positive, it is important to establish an in-hospital reporting system so that rapid reporting can be made. The treatment principle for drug susceptible pulmonary tuberculosis is 2 months of initial intensive phase (isoniazid, rifampin, ethambutol, pyrazinamide) followed by 4 months of maintenance phase (isoniazid, rifampin). Despite global efforts to shorten the duration of the treatment, the treatment of drug susceptible pulmonary tuberculosis has not changed for more than 35 years, and problems such as increased side effects and reduced drug adherence are serious obstacles to tuberculosis management. Therefore, efforts have been steadily made to shorten the treatment period through the combination of new drugs worldwide, and after many failures, they are finally paying off. A recently published Study 31/A5349 study found that 4 months short-term regimen using rifapentine (RPT) and moxifloxacin (MFX) demonstrated non-inferiority in existing standard regimen, as the result, a revision of World Health Organization guidelines is scheduled that 4 months short-term regimen using RPT and MFX may be an alternative. However, it is unlikely that RPT/MFX 4 months short-term regimen will be applied immediately in Korea because the use of RPT is currently limited in Korea due to the high frequency of side effects. (Korean J Med 2021;96:390-399)
Jae-Jin Lyu,Jiwon Sohn,Hyang Yul Kim,Seung Hee Lee IEEE 2007 Journal of display technology Vol.3 No.4
<P>This paper reviews the recent trends on super-patterned vertical alignment (S-PVA) and fringe-field switching (FFS) technologies for liquid crystal display (LCD)-television (TV) applications. For PVA mode, Samsung originally announced S-PVA technology in 2004 to enhance off-axis viewing quality of conventional PVA mode. S-PVA is a new technology which enables screen quality advantages over super-in plane switching (S-IPS) and multi-domain VA (MVA), including high transmittance, >2300:1 contrast ratio, and wide viewing angle with no off-axis image inversion. This paper explores and updates Samsung's latest developments toward its goal of ultimate LCD-TV performance. For FFS mode, the technology appeared in 1998 by HYDIS and now it has been commercialized in all kinds of display applications, implying its technical importance. This paper reviews recent developments and performance of LCD-TV using the FFS mode based on published papers and our knowledge.</P>
Right Common Iliac Artery Occlusion in a Patient with Severe COVID-19
Park Jung Wan,Lyu Jiwon,Ji Tae Hyun,Yu Shi Nae,Jeon Min Hyok 대한감염학회 2023 Infection and Chemotherapy Vol.55 No.2
In patients with coronavirus disease 2019 (COVID-19), thromboembolism is a frequently reported complication. However, it is reported that the incidence of arterial occlusion is rare. We experienced a case of 70-year-old male patient who developed a complication of Right common iliac arterial occlusion while treating him for confirmed COVID-19 who did not have any risk factors, such as diabetes or smoking. As in our case, it is necessary to carefully observe whether this complication occurs while treating COVID-19 patients.
Kim, Ji Min,Lee, Sang Mi,Choi, Jiyoun,Lyu, Jiwon,Lee, Moon Soo The Korea Society of Nuclear Medicine 2016 핵의학 분자영상 Vol.50 No.1
Splenosis is defined as the acquired heterotopic autotransplantation of splenic tissue in other sites of the body after splenic rupture, usually due to either traumatic or iatrogenic causes. It is often found incidentally and is usually asymptomatic. These implants are not limited to the left upper quadrant of the abdomen, however, and splenosis in other locations can mimic various pathologic entities. There are several reports on abdominal splenosis, but intrathoracic and subcutaneous splenosis are rare. We report two cases of intrathoracic and subcutaneous splenosis that were diagnosed using spleen scintigraphy, avoiding the need for an invasive procedure.
Thoracic Splenosis: A Case Report and Noninvasive Diagnosis
Min-Woo Park,Sanghyeok Lim,Ju Ok Na,Jiwon Lyu 순천향대학교 순천향의학연구소 2014 Journal of Soonchunhyang Medical Science Vol.20 No.2
Thoracic splenosis is an autotransplantation of splenic tissue to thorax resulting from splenic and diaphragmatic injury. Thoracic splenosis is usually discovered incidentally on routine thoracic imaging as single or multiple left-sided pleural-based masses without symptoms. Traditionally, patients often undergo an invasive diagnostic procedures including thoracotomy to acquire tissue samples in order to exclude other causes of lung mass. The combination of imaging findings and clinical history make it avoid unnecessary invasive diagnostic procedure to confirm. Therefore, thoracic splenosis should be considered in the differential diagnosis of asymptomatic patients with multiple, left-sided pleural-based nodules and previous history of thoracoabdominal injury and splenectomy. Here we report a case of thoracic splenosis diagnosed without invasive procedure.
Incidence of Pneumonia between Before and During COVID-19 Endemic
( Jihye Lee ),( Yong Hoon Kim ),( Ju Ock Na ),( Jae Sung Choi ),( Ho Sung Lee ),( Jiwon Lyu ),( Yu Ri Kang ),( Ki Hyun Seo ) 대한결핵 및 호흡기학회 2021 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.129 No.0
Purpose The Coronavirus disease 2019(COVID-19) pandemic is spreading rapidly around the world. Infection control measures, which are wearing a mask, hand washing, and alcohol-based disinfectants, are being taken to control the COVID-19. We attempted to compare the incidence of pneumonia in the pre-COVID-19 and during COVID-19 endemic. Methods We conducted a single-center, retrospective study for patients hospitalized to the respiratory department in Soonchunhyang Cheonan hospital from January 2019 to December 2020. It was divided into January to December 2019 as pre-COVID-19 and January to December 2021 as COVID-19 endemic. We investigated patients with pneumonia who were admitted through emergency room. Results In total, 2,144 patients were hospitalized during the study period. The number of all patients from Emergency department decreased from 1,259 in the pre-COVID-19 to 885 during COVID-19 endemic. Of 2,144 patients, patients with pneumonia was decreased from 1,001(79.5%) to 651(73.6%) (P=0.001). In the patients with pneumonia transferred from other hospitals, including local secondary hospital, geriatric hospital, and long-term care facilities, there was no difference of pneumonia (180(88.2%) vs. 156(86.7%), P=0.643), while there was a significant difference in the patients admitted from the community (821(77.8%) vs. 495(70.2%), P<0.001). Meanwhile, patients admitted to the intensive care unit was significantly increased from 216(17.2%) to 234(26.4%)(P=<0.001). Conclusions The incidence of community acquired pneumonia decreased during the COVID-19 endemic, but the severity of pneumonia increased.