1.Surgical Treatment for Celiac Trunk Aneurysm: 2 case report.
Kilsoo YIE ; Gwangjo JO ; Junghee BANG ; Jongsoo WOO ; Jaeik LEE ; Siho KIM ; Wonjun JO
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(9):695-698
Celiac artery aneurysms are rare, their incidence being reported as only 4% of all visceral artery aneurysms. Atherosclerosis and medial degenerative changes are recognized main pathogenesis. They are usually asymptomatic and diagnosed incidentally, but the mortality rate of ruptured celiac artery aneurysm is approximately 80%. So one should give an aggressive surgical aid to the patients. We report 2 cases of celiac artery aneurysm which were successfully treated by elective aneurysmorrhaphy and anerysmectomy with aortoceliac bypass graft.
Aneurysm*
;
Arteries
;
Atherosclerosis
;
Celiac Artery
;
Humans
;
Incidence
;
Mortality
;
Transplants
2.The feasibility of single-port laparoscopic appendectomy using a solo approach: a comparative study.
Say June KIM ; Byung Jo CHOI ; Wonjun JEONG ; Sang Chul LEE
Annals of Surgical Treatment and Research 2016;90(3):164-170
PURPOSE: To investigate the feasibility and safety of solo surgery with single-port laparoscopic appendectomy, which is termed herein solo-SPLA (solo-single-port laparoscopic appendectomy). METHODS: This study prospectively collected and retrospectively analyzed data from patients who had undergone either non-solo-SPLA (n = 150) or solo-SPLA (n = 150). Several devices were utilized for complete, skin-to-skin solo-SPSA, including a Lone Star Retractor System and an adjustable mechanical camera holder. RESULTS: Operating times were not significantly different between solo- and non-solo-SPLA (45.0 +/- 21.0 minutes vs. 46.7 +/- 26.1 minutes, P = 0.646). Most postoperative variables were also comparable between groups, including the necessity for intravenous analgesics (0.7 +/- 1.2 ampules [solo-SPLA] vs. 0.9 +/- 1.5 ampules [non-solo-SPLA], P = 0.092), time interval to gas passing (1.3 +/- 1.0 days vs. 1.4 +/- 1.0 days, P = 0.182), and the incidence of postoperative complications (4.0% vs. 8.7%, P = 0.153). Moreover, solo-SPLA effectively lowered the operating cost by reducing surgical personnel expenses. CONCLUSION: Solo-SPLA economized staff numbers and thus lowered hospital costs without lengthening of operating time. Therefore, solo-SPLA could be considered a safe and feasible alternative to non-solo-SPLA.
Analgesics
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Appendectomy*
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Hospital Costs
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Humans
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Incidence
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Postoperative Complications
;
Prospective Studies
;
Retrospective Studies
3.Does Korea's current diagnosis-related group-based reimbursement system appropriately classify appendectomy patients?.
Kee Hwan KIM ; Sang Chul LEE ; Sang Kuon LEE ; Byung Jo CHOI ; Wonjun JEONG ; Say June KIM
Annals of Surgical Treatment and Research 2016;91(2):66-73
PURPOSE: As several years have passed since the implementation of the Korean diagnosis-related group (DRG) payment system for appendicitis, its early outcomes should be assessed to determine if further improvements are warranted. METHODS: We retrospectively analyzed clinical data from Korean patients who underwent appendectomy, dividing the sample into 2 groups of those who received services before and after implementation of the DRG system. Based on the DRG code classification, patient data were collected including the amount of DRG reimbursement and the total in-patient costs. We subsequently performed univariate and multivariate analyses to identify independent factors contributing to higher total in-patient cost. RESULTS: Although implementation of the DRG system for appendicitis significantly reduced postoperative length of stay (2.8 ± 1.0 days vs. 3.4 ± 1.9 days, P < 0.001), it did not reduce total in-hospital cost. The independent factors related to total inhospital cost included patient age of 70 years or more (odds ratio [OR], 3.214; 95% confidence interval [CI], 1.769-5.840; P < 0.001) and operation time longer than 100 minutes (OR, 3.690; 95% CI, 2.007-6.599, P < 0.001). In addition, older patients (≥70 years) showed a nearly 10 times greater relative risk for having a comorbid condition (95% CI, 5.141-20.214; P < 0.001) and a 3.255 times greater relative risk for having higher total in-hospital cost (95% CI, 1.731-6.119, P < 0.001). CONCLUSION: It appears that older patients (>70 years) have greater comorbidities, which contribute to higher inpatient costs. Thus, our study suggests that patient age be considered as a DRG classification variable.
Appendectomy*
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Appendicitis
;
Classification
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Comorbidity
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Diagnosis-Related Groups
;
Hospital Costs
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Humans
;
Inpatients
;
Length of Stay
;
Multivariate Analysis
;
Retrospective Studies
4.Everolimus Plus Ku0063794 Regimen Promotes Anticancer Effects against Hepatocellular Carcinoma Cells through the Paradoxical Inhibition of Autophagy.
Sang Chul LEE ; Kee Hwan KIM ; Ok Hee KIM ; Sang Kuon LEE ; Ha Eun HONG ; Byung Jo CHOI ; Wonjun JEONG ; Say June KIM
Cancer Research and Treatment 2018;50(3):1023-1038
PURPOSE: Everolimus only inhibits mammalian target of rapamycin complex 1 (mTORC1), whereas Ku0063794 inhibits both mTORC1 and mTORC2. Although they have similar anticancer effects, their combination has a synergistic effect against hepatocellular carcinoma (HCC) cells. We aimed to determine the mechanism underlying the synergistic effects of everolimus and Ku0063794 associated with autophagy in HCC cells. MATERIALS AND METHODS: We compared the effects of everolimus and Ku0063794, individually or in combination, on both the in vitro and in vivo models of HCCs. RESULTS: HepG2 cells treated with both agents had significantly lower rates of cell proliferation and higher apoptosis than the individual monotherapies (p < 0.05). Autophagic studies consistently indicated that, unlike the monotherapies, the combination therapy significantly reduced autophagy (p < 0.05). Autophagic blockage directly promoted the pro-apoptotic effects of combination therapy, suggesting autophagy as the survival mechanism of HCC cells. Unlike the monotherapies, combination therapy showed the potential to inhibit sirtuin 1 (SIRT1), the positive regulator of autophagy. SIRT1 overexpression abrogated the autophagy-inhibiting and pro-apoptotic effects of combination therapy. In a nude mouse xenograft model, the shrinkage of tumors was more prominent in mice treated with combination therapy than in mice treated with the respective monotherapies (p < 0.05). The immunohistochemical and immunofluorescence stains of the tumor obtained from the xenograft model showed that combination therapy had the potential of reducing autophagy and promoting apoptosis. CONCLUSION: The combination of everolimus and Ku0063794 potentiates anticancer effects on HCCs through a decrease in autophagy, which is prompted by SIRT1 downregulation.
Animals
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Apoptosis
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Autophagy*
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Carcinoma, Hepatocellular*
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Cell Proliferation
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Coloring Agents
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Down-Regulation
;
Everolimus*
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Fluorescent Antibody Technique
;
Hep G2 Cells
;
Heterografts
;
In Vitro Techniques
;
Mice
;
Mice, Nude
;
Sirolimus
;
Sirtuin 1
;
TOR Serine-Threonine Kinases
5.Repeated Water Avoidance Stress Alters Mucosal Mast Cell Counts, Interleukin-1β Levels with Sex Differences in the Distal Colon of Wistar Rats.
Ju Yup LEE ; Nayoung KIM ; Yong Sung KIM ; Ryoung Hee NAM ; Min Hee HAM ; Hye Seung LEE ; Wonjun JO ; Youngkwang SHIM ; Yoon Jin CHOI ; Hyuk YOON ; Cheol Min SHIN ; Dong Ho LEE
Journal of Neurogastroenterology and Motility 2016;22(4):694-704
BACKGROUND/AIMS: This study was aimed at evaluating differences in the effects of repeated water avoidance stress (rWAS) on colonic movement, mucosal mast cell counts, cytokine levels, and visceromotor response (VMR) to colorectal distension (CRD) in rats of both sexes. METHODS: Wistar rats were divided into stress and no-stress groups. Rats in the stress group were exposed to rWAS (1 hr/day) for 10 days. Mucosal mast cells were immunohistochemically stained with anti-mast cell tryptase antibody and counted. The colonic mucosal cytokine levels were measured with enzyme-linked immunosorbent assay. The VMR to CRD (visceral analgesia) was assessed by using a barostat and noninvasive manometry. RESULTS: The mean number of fecal pellets in the rWAS group increased significantly as compared with that in the no-stress group in both sexes. After adjustment for body weight, the female rats had a significantly higher pellet output than the male rats. The mucosal mast cell count of the female rWAS group was higher than that of the male rWAS group (13.0 ± 0.9 vs 8.8 ± 0.6; P < 0.001). The colonic mucosal interleukin-1β level was also higher only in the female rats of the rWAS group than in those of the no-stress group. On days 10 and 11, a decrease in VMR to CRD was observed at 40 and 60 mmHg in both sexes of the rWAS group, without a sex-based difference. CONCLUSIONS: The colonic response to stress appeared to be more sensitive in the female rats than in the male rats. However, stress-induced visceral analgesia had no sex-related difference and the underlying mechanism needs to be further evaluated.
Analgesia
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Animals
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Body Weight
;
Colon*
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Cytokines
;
Enzyme-Linked Immunosorbent Assay
;
Female
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Humans
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Male
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Manometry
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Mast Cells*
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Rats
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Rats, Wistar*
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Sex Characteristics*
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Tryptases
;
Water*
6.Cancer-Related Dysfunctional Beliefs About Sleep Mediate the Influence of Sleep Disturbance on Fear of Progression Among Patients With Surgically Resected Lung Cancer
Harin KIM ; Wonjun JI ; Jong Won LEE ; Min-Woo JO ; Sung-Chol YUN ; Sei Won LEE ; Chang-Min CHOI ; Geun Dong LEE ; Hui Jeong LEE ; Eulah CHO ; Yura LEE ; Seockhoon CHUNG
Journal of Korean Medical Science 2023;38(31):e236-
Background:
Lung cancer is associated with significant psychological distress, including fear of progression (FoP). Because insomnia and depression are highly prevalent and associated with FoP, we examined the association between FoP, insomnia, and depression in cancer patients. Furthermore, we tested the mediation effect of cancer-related dysfunctional beliefs about sleep (C-DBS) on this association.
Methods:
We analyzed data collected from patients with surgically resected non-small cell lung cancer from a single-center randomized controlled study investigating digital healthcare applications. Baseline demographic and clinical variables were collected. In addition, selfreported questionnaires including the Fear of Progression Questionnaire-Short Form, Patients Health Questionnaire-9 items (PHQ-9), Insomnia Severity Index, and C-DBS were administered.
Results:
Among the 320 enrolled patients with lung cancer, a regression model showed that FoP was predicted by age (β = −0.13, P = 0.007), PHQ-9 (β = 0.35, P < 0.001), and C-DBS (β = 0.28, P < 0.001). Insomnia did not directly influence FoP, but C-DBS mediated the association. Depression directly influenced FoP, but C-DBS did not mediate this association.
Conclusion
Among patients with surgically resected lung cancer, C-DBS mediated the effects of severity of insomnia on FoP. Depression directly influenced FoP, but C-DBS did not influence this association. To reduce FoP among patients with lung cancer, C-DBS should be addressed in the cognitive behavioral therapy module.