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Haam, Seokjin,Lee, Sungsoo,Paik, Hyo Chae,Park, Moo Suk,Song, Joo Han,Lim, Beom Jin,Nakao, Atsunori Springer International 2015 European journal of cardio-thoracic surgery Vol.48 No.4
<P>Lung transplantation is a well-established treatment of end-stage lung disease; however, it is limited by a shortage of donor lungs. To overcome this problem, donation after cardiac death (DCD) and ex vivo lung perfusion (EVLP) are being widely investigated. In this study, the effect of hydrogen gas, a known antioxidant, was investigated on a DCD lung model during EVLP.</P>
Late Respiratory Infection after Lung Transplantation
( Sang Young Kim ),( Jung Ar Shin ),( Eun Na Cho ),( Min Kwang Byun ),( Hyung Jung Kim ),( Chul Min Ahn ),( Suk Jin Haam ),( Doo Yun Lee ),( Hyo Chae Paik ),( Yoon Soo Chang ) 대한결핵 및 호흡기학회 2013 Tuberculosis and Respiratory Diseases Vol.74 No.2
Background: Aiming to improve outcome of lung transplantation (LTx) patients, we reviewed risk factors and treatment practices for the LTx recipients who experienced respiratory infection in the late post-LTx period (>1 month after LTx). Methods: We analyzed the clinical data of 48 recipients and donors from 61 LTx, who experienced late respiratory infections. Late respiratory infections were classified according to the etiology, time of occurrence, and frequency of donor-to-host transmission or colonization of the recipient prior to transplantation. Results: During the period of observation, 42 episodes of respiratory infections occurred. The organisms most frequently involved were gram (-) bacteria: Acinetobacter baumannii (n=13, 31.0%), Pseudomonas aeruginosa (n=7, 16.7%), and Klebsiella pneumoniae (n=4, 10.0%). Among the 42 episodes recorded, 14 occurred in the late post-LTx period. These were bacterial (n=6, 42.9%), fungal (n=2, 14.3%), viral (n=4, 28.5%), and mycobacterial (n=2, 14.3%) infections. Of 6 bacterial infections, 2 were from multidrug-resistant (MDR) A. baumannii and one from each of MDR P. aeruginosa, extended spectrum β-lactamase (+) K. pneumoniae, methicillin-resistant Staphylococcus aureus and Streptococcus pneumoniae. Infection-related death occurred in 6 of the 14 episodes (43%). Conclusion: Although the frequency of respiratory infection decreased sharply in the late post-LTx period, respiratory infection was still a major cause of mortality. Gram (-) MDR bacteria were the agents most commonly identified in these infections.
Late Respiratory Infection after Lung Transplantation
Kim, Sang Young,Shin, Jung Ar,Cho, Eun Na,Byun, Min Kwang,Kim, Hyung Jung,Ahn, Chul Min,Haam, Suk Jin,Lee, Doo Yun,Paik, Hyo Chae,Chang, Yoon Soo The Korean Academy of Tuberculosis and Respiratory 2013 Tuberculosis and Respiratory Diseases Vol.74 No.2
Background: Aiming to improve outcome of lung transplantation (LTx) patients, we reviewed risk factors and treatment practices for the LTx recipients who experienced respiratory infection in the late post-LTx period (>1 month after LTx). Methods: We analyzed the clinical data of 48 recipients and donors from 61 LTx, who experienced late respiratory infections. Late respiratory infections were classified according to the etiology, time of occurrence, and frequency of donor-to-host transmission or colonization of the recipient prior to transplantation. Results: During the period of observation, 42 episodes of respiratory infections occurred. The organisms most frequently involved were gram (-) bacteria: Acinetobacter baumannii (n=13, 31.0%), Pseudomonas aeruginosa (n=7, 16.7%), and Klebsiella pneumoniae (n=4, 10.0%). Among the 42 episodes recorded, 14 occurred in the late post-LTx period. These were bacterial (n=6, 42.9%), fungal (n=2, 14.3%), viral (n=4, 28.5%), and mycobacterial (n=2, 14.3%) infections. Of 6 bacterial infections, 2 were from multidrug-resistant (MDR) A. baumannii and one from each of MDR P. aeruginosa, extended spectrum ${\beta}$-lactamase (+) K. pneumoniae, methicillin-resistant Staphylococcus aureus and Streptococcus pneumoniae. Infection-related death occurred in 6 of the 14 episodes (43%). Conclusion: Although the frequency of respiratory infection decreased sharply in the late post-LTx period, respiratory infection was still a major cause of mortality. Gram (-) MDR bacteria were the agents most commonly identified in these infections.
Bae, Seo Ryung,Choi, Jihye,Kim, Hyun-Ouk,Kang, Byunghoon,Kim, Myeong-Hoon,Han, Seungmin,Noh, Ilkoo,Lim, Jong-Woo,Suh, Jin-Suk,Huh, Yong-Min,Haam, Seungjoo The Royal Society of Chemistry 2015 Journal of materials chemistry. B, Materials for b Vol.3 No.3
<P>The integration of contrast-enhanced diagnostic imaging and therapy could utilize image guided therapy to plan treatment strategy. Toward this goal, a unique construction and operation of a pseudo metal based photothermal therapeutic agent (PPAM) is introduced by polyaniline (PANI) generation templated on iron oxide metal nanoclusters (MNCs). Notably, MNC core interferes as a catalytic agent and enables aniline polymerization under ambient acidic conditions. The intrusion of transition metal enhanced the proton sensitivity of PANI, which led to pH responsive conversion even at dilute proton concentrations (pH 5, 6) compared to the PANI particles prepared by conventional methods. Under physiological pH, PPAM reveals no special features; however, under low pH conditions, which is a notable characteristic of the cancer microenvironment, PPAM automatically converts into its emeraldine salt (ES) state and thus activates as a photothermal therapeutic agent. Utilizing this specific redox responsive switched off-on behavior of PPAM, precise and systemized photothermal therapy is demonstrated, proving itself as a smart and efficient photothermal therapeutic agent.</P>