1.Clinical significance and outcomes of adult living donor liver transplantation for acute liver failure: a retrospective cohort study based on 15-year single-center experience
Geun-hyeok YANG ; Young-In YOON ; Shin HWANG ; Ki-Hun KIM ; Chul-Soo AHN ; Deok-Bog MOON ; Tae-Yong HA ; Gi-Won SONG ; Dong-Hwan JUNG ; Gil-Chun PARK ; Sung-Gyu LEE
Annals of Surgical Treatment and Research 2024;107(3):167-177
Purpose:
This study aimed to describe adult living donor liver transplantation (LDLT) for acute liver failure and evaluate its clinical significance by comparing its surgical and survival outcomes with those of deceased donor liver transplantation (DDLT).
Methods:
We retrospectively reviewed the medical records of 267 consecutive patients (161 LDLT recipients and 106 DDLT recipients) aged 18 years or older who underwent liver transplantation between January 2006 and December 2020.
Results:
The mean periods from hepatic encephalopathy to liver transplantation were 5.85 days and 8.35 days for LDLT and DDLT, respectively (P = 0.091). Among these patients, 121 (45.3%) had grade III or IV hepatic encephalopathy (living, 34.8% vs. deceased, 61.3%; P < 0.001), and 38 (14.2%) had brain edema (living, 16.1% vs. deceased, 11.3%; P = 0.269) before liver transplantation. There were no significant differences in in-hospital mortality (living, 11.8% vs. deceased, 15.1%; P = 0.435), 10-year overall survival (living, 90.8% vs. deceased, 84.0%; P = 0.096), and graft survival (living, 83.5% vs. deceased, 71.3%;P = 0.051). However, postoperatively, the mean intensive care unit stay was shorter in the LDLT group (5.0 days vs. 9.5 days, P < 0.001). In-hospital mortality was associated with vasopressor use (odds ratio [OR], 3.40; 95% confidence interval [CI], 1.45–7.96; P = 0.005) and brain edema (OR, 2.75; 95% CI, 1.16–6.52; P = 0.022) of recipient at the time of transplantation. However, LDLT (OR, 1.26; 95% CI, 0.59–2.66; P = 0.553) was not independently associated with in-hospital mortality.
Conclusion
LDLT is feasible for acute liver failure when organs from deceased donors are not available.
2.Association between volume status assessed by bioelectrical impedance analysis, lung ultrasound, or weight change and mortality in patients with sepsisassociated acute kidney injury receiving continuous kidney replacement therapy
Cheol Ho PARK ; Seung Gyu HAN ; Hyung Woo KIM ; Jung Tak PARK ; Seung Hyeok HAN ; Seung Jun KIM ; Shin-Wook KANG
Kidney Research and Clinical Practice 2024;43(1):93-100
Fluid overload is an independent risk factor of mortality in patients with acute kidney injury (AKI) receiving continuous kidney replacement therapy (CKRT). However, the association between fluid status, as assessed by bioelectrical impedance analysis (BIA) or lung ultrasound, and survival in patients with AKI requiring CKRT has not been established. Methods: We analyzed 36 participants with sepsis-associated AKI who received CKRT at a tertiary hospital. The main exposures were volume surrogates: 1) overhydration normalized by extracellular water (OH/ECW, L/L) assessed by BIA, 2) the number of B-lines measured by lung ultrasound, and 3) weight change ([body weight at CKRT initiation – body weight at admission] × 100/body weight at admission). The primary outcome was the 28-day mortality. Results: Seventeen participants (47.2%) died within 28 days. There were no significant correlations between OH/ECW and weight change (R2 = 0.040, p = 0.24), number of B-lines and OH/ECW (R2 = 0.056, p = 0.16), or weight change and number of B-lines (R2 = 0.014, p = 0.49). Kaplan-Meier analyses revealed that patients in the highest tertile of OH/ECW showed a significantly lower cumulative 28-day survival probability than the others (the lowest + middle tertiles). The survival probability of participants in the highest tertile of the number of B-lines or weight change did not differ from that of their counterparts. In a multivariate Cox proportional hazard model, the hazard ratio for the highest tertile of OH/ECW was 3.83 (95% confidence interval, 1.04–14.03). Conclusion: Volume overload assessed using BIA (OH/ECW) was associated with the 28-day survival rate in patients with sepsis-associated AKI who received CKRT.
3.Erratum to “2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 4. Adult advanced life support”
Jaehoon OH ; Kyoung-Chul CHA ; Jong-Hwan LEE ; Seungmin PARK ; Dong-Hyeok KIM ; Byung Kook LEE ; Jung Soo PARK ; Sung Phil CHUNG ; Young-Min KIM ; June Dong PARK ; Han-Suk KIM ; Mi Jin LEE ; Sang-Hoon NA ; Gyu Chong CHO ; Ai-Rhan Ellen KIM ; Sung Oh HWANG ;
Clinical and Experimental Emergency Medicine 2022;9(2):162-163
4.Diversity of the Bambusicolous Fungus Apiospora in Korea: Discovery of New Apiospora Species
Sun Lul KWON ; Minseo CHO ; Young Min LEE ; Hanbyul LEE ; Changmu KIM ; Gyu-Hyeok KIM ; Jae-Jin KIM
Mycobiology 2022;50(5):302-316
Many Apiospora species have been isolated from bamboo plants – to date, 34 bambusicolous Apiospora species have been recorded. They are known as saprophytes, endophytes, and plant pathogens. In this study, 242 bambusicolous Apiospora were isolated from various bamboo materials (branches, culms, leaves, roots, and shoots) and examined using DNA sequence similarity based on the internal transcribed spacer, 28S large subunit ribosomal RNA gene, translation elongation factor 1-alpha, and beta-tubulin regions. Nine Apiospora species (Ap. arundinis, Ap. camelliae-sinensis, Ap. hysterina, Ap. lageniformis sp. nov., Ap. paraphaeosperma, Ap. pseudohyphopodii sp. nov., Ap. rasikravindrae, Ap. saccharicola, and Ap. sargassi) were identified via molecular analysis. Moreover, the highest diversity of Apiospora was found in culms, and the most abundant species was Ap. arundinis. Among the nine Apiospora species, two (Ap. hysterina and Ap. paraphaeosperma) were unrecorded in Korea, and the other two species (Ap. lageniformis sp. nov. and Ap. pseudohyphopodii
5.Prognostic Value of Alpha-Fetoprotein in Patients Who Achieve a Complete Response to Transarterial Chemoembolization for Hepatocellular Carcinoma
Jae Seung LEE ; Young Eun CHON ; Beom Kyung KIM ; Jun Yong PARK ; Do Young KIM ; Sang Hoon AHN ; Kwang-Hyub HAN ; Wonseok KANG ; Moon Seok CHOI ; Geum-Youn GWAK ; Yong-Han PAIK ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Hwi Young KIM ; Tae Hun KIM ; Kwon YOO ; Yeonjung HA ; Mi Na KIM ; Joo Ho LEE ; Seong Gyu HWANG ; Soon Sun KIM ; Hyo Jung CHO ; Jae Youn CHEONG ; Sung Won CHO ; Seung Ha PARK ; Nae-Yun HEO ; Young Mi HONG ; Ki Tae YOON ; Mong CHO ; Jung Gil PARK ; Min Kyu KANG ; Soo Young PARK ; Young Oh KWEON ; Won Young TAK ; Se Young JANG ; Dong Hyun SINN ; Seung Up KIM ;
Yonsei Medical Journal 2021;62(1):12-20
Purpose:
Alpha-fetoprotein (AFP) is a prognostic marker for hepatocellular carcinoma (HCC). We investigated the prognostic value of AFP levels in patients who achieved complete response (CR) to transarterial chemoembolization (TACE) for HCC.
Materials and Methods:
Between 2005 and 2018, 890 patients with HCC who achieved a CR to TACE were recruited. An AFP responder was defined as a patient who showed elevated levels of AFP (>10 ng/mL) during TACE, but showed normalization or a >50% reduction in AFP levels after achieving a CR.
Results:
Among the recruited patients, 569 (63.9%) with naïve HCC and 321 (36.1%) with recurrent HCC after complete resection were treated. Before TACE, 305 (34.3%) patients had multiple tumors, 219 (24.6%) had a maximal tumor size >3 cm, and 22 (2.5%) had portal vein tumor thrombosis. The median AFP level after achieving a CR was 6.36 ng/mL. After a CR, 473 (53.1%) patients experienced recurrence, and 417 (46.9%) died [median progression-free survival (PFS) and overall survival (OS) of 16.3 and 62.8 months, respectively]. High AFP levels at CR (>20 ng/mL) were independently associated with a shorter PFS [hazard ratio (HR)=1.403] and OS (HR=1.284), together with tumor multiplicity at TACE (HR=1.518 and 1.666, respectively). AFP non-responders at CR (76.2%, n=359 of 471) showed a shorter PFS (median 10.5 months vs. 15.5 months, HR=1.375) and OS (median 41.4 months vs. 61.8 months, HR=1.424) than AFP responders (all p=0.001).
Conclusion
High AFP levels and AFP non-responders were independently associated with poor outcomes after TACE. AFP holds clinical implications for detailed risk stratification upon achieving a CR after TACE.
6.2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 4. Adult advanced life support
Jaehoon OH ; Kyoung-Chul CHA ; Jong-Hwan LEE ; Seungmin PARK ; Dong-Hyeok KIM ; Byung Kook LEE ; Jung Soo PARK ; Woo Jin JUNG ; Dong Keon LEE ; Young Il ROH ; Tae Youn KIM ; Sung Phil CHUNG ; Young-Min KIM ; June Dong PARK ; Han-Suk KIM ; Mi Jin LEE ; Sang-Hoon NA ; Gyu Chong CHO ; Ai-Rhan Ellen KIM ; Sung Oh HWANG ;
Clinical and Experimental Emergency Medicine 2021;8(S):S26-S40
7.2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 3. Adult basic life support
Kyoung-Jun SONG ; Sun Young LEE ; Gyu Chong CHO ; Giwoon KIM ; Jung-Youn KIM ; Jaehoon OH ; Je Hyeok OH ; Seung RYU ; Seung Mok RYOO ; Eun-Ho LEE ; Sung Oh HWANG ; Ju Young HONG ; Sung Phil CHUNG
Clinical and Experimental Emergency Medicine 2021;8(S):S15-S25
8.2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 4. Adult advanced life support
Jaehoon OH ; Kyoung-Chul CHA ; Jong-Hwan LEE ; Seungmin PARK ; Dong-Hyeok KIM ; Byung Kook LEE ; Jung Soo PARK ; Woo Jin JUNG ; Dong Keon LEE ; Young Il ROH ; Tae Youn KIM ; Sung Phil CHUNG ; Young-Min KIM ; June Dong PARK ; Han-Suk KIM ; Mi Jin LEE ; Sang-Hoon NA ; Gyu Chong CHO ; Ai-Rhan Ellen KIM ; Sung Oh HWANG ;
Clinical and Experimental Emergency Medicine 2021;8(S):S26-S40
9.2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 3. Adult basic life support
Kyoung-Jun SONG ; Sun Young LEE ; Gyu Chong CHO ; Giwoon KIM ; Jung-Youn KIM ; Jaehoon OH ; Je Hyeok OH ; Seung RYU ; Seung Mok RYOO ; Eun-Ho LEE ; Sung Oh HWANG ; Ju Young HONG ; Sung Phil CHUNG
Clinical and Experimental Emergency Medicine 2021;8(S):S15-S25
10.Molecular Networking-based De-replication Strategy Leads to the Isolation of a New Chromone from Pleosporales sp.
Haeun KWON ; Jun Gu KIM ; Jeong-Joo OH ; Jae-Jin KIM ; Gyu-Hyeok KIM ; Bang Yeon HWANG ; Joung Han YIM ; Dongho LEE
Natural Product Sciences 2020;26(4):340-344
A new chromone analogue (1) was isolated from an EtOAc-extract of Pleosporales sp. culture medium, together with five known chromones (2 – 6). The isolation workflow was guided by a Molecular Networking-based dereplication strategy. The chemical structure of the new compound was elucidated using NMR and MS spectroscopy, and the absolute configuration was established by the Mosher's method. All isolated compounds were evaluated for their inhibitory effects on lipopolysaccharide-induced nitirc oxide production in RAW 264.7 macrophages. Compound 1 showed marginal inhibitory activity with an IC50 value of 118.7 μM.

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