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Jaehun Yang,Yeon Ho Park,Doojin Kim,Doo-Ho Lee 한국간담췌외과학회 2024 한국간담췌외과학회지 Vol.28 No.3
Backgrounds/Aims: We evaluated long-term pancreatic functional outcomes, including pancreatic volumetry after pancreaticoduodenectomy (PD) for peri-ampullary neoplasm. Methods: We retrospectively reviewed 353 patients with a 12-month follow-up who underwent elective pancreaticoduodenectomies for peri-ampullary neoplasms at a single university hospital between January 2011 and December 2020. Perioperative and postoperative outcomes, long-term pancreatic endocrine functions, and pancreatic volume changes 12 month postoperatively were evaluated. Results: The mean age was 65.4 years, and the sex ratio was 1.38. The patients with prediagnosed diabetes mellitus (DM) comprised 31.4%. The peri-ampullary neoplasm origins were: the pancreas (49.0%), common bile duct (27.2%), ampulla of Vater (18.4%), and duodenum (5.4%). The 1-week, and 3-, 6-, and 12-month postoperative proportions of patients with DM diagnosed before surgery combined with new-onset postoperative DM were 39.7%, 42.8%, 43.9%, and 49.6%, respectively. The preoperative and postoperative 1-week, and 3-, 6-, and 12-month mean pancreatic volumes were 82.3, 38.7, 28.1, 24.9, and 25.5 mL, respectively. Univariate risk factor analyses for new-onset DM after PD observed no significant difference between the ‘No DM after PD’ and ‘New-onset DM after PD’ groups. Conclusions: Following PD for peri-ampullary neoplasms, pancreatic endocrine functions and volumes continued to decrease for a minimum of 12 months. The current study did not identify any causal relationship between pancreatic endocrine dysfunction and pancreatic atrophy following PD.
Jaehun Yang,Jinsoo Rhu,Jieun Kwon,Gyu-Seong Choi,Jong Man Kim,Woo Kyoung Jeong,Jae-Won Joh 대한외과학회 2023 Annals of Surgical Treatment and Research(ASRT) Vol.104 No.6
Purpose: This study evaluated the clinical implication of hepatic venous territory mapping in living donor liver transplantation. Methods: Living donor liver transplantations performed using right graft since 2017 were included. Hepatic venous volume mapping was started in 2019. Risk factors for graft failure and overall survival were analyzed. Analysis for factors related to occlusion of reconstructed vein was performed. Results: Among 445 patients included, 213 underwent hepatic venous mapping. Hepatic venous mapping itself was not a significant factor for graft (hazard ratio [HR], 0.958; 95% confidence interval [CI], 0.441–2.082; P = 0.913) and overall survival (HR, 0.627; 95% CI, 0.315–1.247; P = 0.183). Inferior hepatic vein occlusion was a significant risk factor for both graft survival (HR, 8.795; 95% CI, 1.628–47.523; P = 0.012) and overall survival (HR, 11.13; 95% CI, 2.460–50.300; P = 0.002). In a subgroup with middle hepatic vein reconstruction, occlusion was a significant risk factor for overall survival (HR, 3.289; 95% CI, 1.304–8.296; P = 0.012). In patients with middle hepatic vein reconstruction whose venous territory volumes were measured, right anterior volume of ≥300 cm3 was protective for vein occlusion (OR, 0.317; 95% CI, 0.152–0.662; P = 0.002). In patients with V5 reconstruction, V5 volume of ≥150 cm3 was protective for vein occlusion (OR, 0.253; 95% CI, 0.087–0.734; P = 0.011). Conclusion: Inferior and middle hepatic vein reconstruction has significant impact on clinical outcome. Hepatic venous territory mapping can provide an objective measure for successful reconstruction of venous branches.
Early use of everolimus improved renal function after adult deceased donor liver transplantation
Jaehun YANG,Sunghae PARK,Young Ju OH,Sang Oh YUN,Manuel LIM,Ji Eun KWON,Eun Sung JEONG,Jinsoo RHU,Gyu-Seong CHOI,Jong Man KIM,Jae-Won JOH 한국간담췌외과학회 2021 Annals of hepato-biliary-pancreatic surgery Vol.25 No.-
Early Use of Everolimus Improved Renal Function after Adult Deceased Donor Liver Transplantation
( Jaehun Yang ),( Sunghae Park ),( Young Ju Oh ),( Sang Oh Yun ),( Manuel Lim ),( Ji Eun Kwon ),( Eun Sung Jeong ),( Jinsoo Rhu ),( Gyu-seong Choi ),( Jong Man Kim ),( Jae-won Joh ) 대한간학회 2021 춘·추계 학술대회 (KASL) Vol.2021 No.1
( Jaehun Yang ),( Jinsoo Rhu ),( Sangjin Kim ),( Seohee Lee ),( Gyu-seong Choi ),( Jong Man Kim ),( Jae-won Joh ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: This study aims to compare differences between laparoscopic donor right hemihepatectomy (LDRH) and open donor right hemihepatectomy (ODRH) in the quality of the operation, postoperative complications, and liver regeneration measured via volumetry. Methods: This study included 119 patients who underwent living donor right hemihepatectomy at Samsung Medical Center from January 2016 to December 2017. We compared several aspects of LDRH and ODRH and analyzed the results using the independent t-test, chi-square test and Fisher’s exact test. Results: Among 119 enrolled patients, 66 patients (55.5%) underwent open surgery, and 53 patients (44.5%) underwent laparoscopic surgery. The mean operation time was significantly shorter for ODRH (290.57 ± 54.04 minutes) than LDRH (312.28 ± 53.5 minutes) (P=0.031). Estimated blood loss was significantly less in LDRH (258.49 ± 119.99 ml) than ODRH (326.52 ± 157.68 ml) (P=0.011). The remnant liver recovered to 83.35 ± 10.71% of the preoperative estimate whole liver volume (pre-EWLV) in the ODRH group and 84.04 ± 8.98% of the pre-EWLV in the LDRH group (P=0.707). The percentage of increased estimated liver volume to postoperative estimate remnant liver volume (post-ERLV) was 137.62 ± 40.34% in the ODRH group and 130.56 ± 36.78% in the LDRH group, and there was no statistically significant difference between the two groups (P=0.326). An analysis of postoperative complications showed no significant differences. Conclusions: LDRH is safe, and there is no significant difference in hepatic regeneration compared with ODRH. Therefore, LDRH can be applied for living donation of liver.
Jaehun Yang,Jong Man Kim,Jinsoo Rhu,Sangjin Kim,Seohee Lee,Gyu-Seong Choi,Jae-Won Joh 한국간담췌외과학회 2020 Annals of hepato-biliary-pancreatic surgery Vol.24 No.1
Backgrounds/Aims: This study aims to compare differences between laparoscopic donor right hemihepatectomy (LDRH) and open donor right hemihepatectomy (ODRH) in the quality of the operation, postoperative complications, and liver regeneration measured via volumetry. Methods: This study included 119 patients who underwent living donor right hemihepatectomy at Samsung Medical Center from January 2016 to December 2017. We compared several aspects of LDRH and ODRH and analyzed the results using the independent t-test, chi-square test and Fisher’s exact test. Results: Among 119 enrolled patients, 66 patients (55.5%) underwent open surgery, and 53 patients (44.5%) underwent laparoscopic surgery. The mean operation time was significantly shorter for ODRH (290.57±54.04 minutes) than LDRH (312.28±53.5 minutes) (p=0.031). Estimated blood loss was significantly less in LDRH (258.49±119.99 ml) than ODRH (326.52±157.68 ml) (p=0.011). The remnant liver recovered to 83.35±10.71% of the preoperative estimate whole liver volume (pre-EWLV) in the ODRH group and 84.04±8.98% of the pre-EWLV in the LDRH group (p=0.707). The percentage of increased estimated liver volume to postoperative estimate remnant liver volume (post-ERLV) was 137.62±40.34% in the ODRH group and 130.56±36.78% in the LDRH group, and there was no statistically significant difference between the two groups (p=0.326). An analysis of postoperative complications showed no significant differences. Conclusions: LDRH is safe, and there is no significant difference in hepatic regeneration compared with ODRH. Therefore, LDRH can be applied for living donation of liver.
양재훈(Jaehun Yang),김영근(Youngkeun Kim) 한국재활심리학회 2024 재활심리연구 Vol.31 No.2
본 연구는 학교전담경찰관과의 심층면접을 바탕으로 그들의 역할갈등 경험을 살펴보고자 하였다. 이를 위해 연구목적에 적합한 연구참여자 9명을 선정 후 심층면접을 진행하였으며, Giorgi의 연구방법에 따라 면담 내용을 분석하여 결과를 도출하였다. 자료 분석 결과 27개의 하위범주가 도출되었고 비슷한 의미를 묶어 9개의 범주와 2개의 영역으로 구조화하였다. 2개의 영역은 ‘역할갈등 경험’, ‘역할갈등 경험 후 적응과정’으로 구성되었으며, 9개의 범주는 ‘학교전담경찰관에 대한 부정적 인식’, ‘학교전담경찰관 업무에 대한 혼란’, ‘업무 관련자와의 갈등’, ‘청소년 상담 과정에서의 어려움’, ‘역할갈등으로 인한 부정적 영향’, ‘역할갈등 극복의 외부 지지요인’, ‘역할갈등에 대한 스스로의 인식변화’, ‘업무 능력 향상을 위한 노력’, ‘변화에 대한 기대’로 도출되었다. 본 연구는 학교전담경찰관의 역할갈등 경험에 대해 최초로 시도된 현상학적 연구이다. 또한, 학교전담경찰관의 역할갈등 해소 및 역할 재정립과 직무만족도 향상을 위한 기초자료를 제공하여 학교전담경찰관이 청소년 선도 활동에 보다 긍정적인 기능을 수행할 수 있도록 돕는 데 의의가 있다. This study examined the experiences of role conflict among school police officers through in-depth interviews. Nine participants were selected, and their interviews were analyzed using Giorgi's research method. From the data analysis, 27 sub-categories were derived, which were grouped into nine categories and two main areas: 'role conflict experience' and 'adaptation process after role conflict experience'. The nine categories included 'negative perception of school police officers', 'confusion about the work of school police officers', 'conflict with work related persons', 'negative impact due to role conflict', 'external support factors for overcoming role conflict', 'change in self-awareness of role conflict', 'efforts to improve work ability', and 'expectation for change'. This study is the first phenomenological study to explore the role conflict experiences of school police officers. Additionally, it provides insights for helping school police officers perform their roles more positively by offering foundational data for resolving role conflict, redefining roles, and improving job statisfaction.