• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.381-385
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• 2015

Background:Hepatocellular carcinoma (HCC) is the second most common malignancy in Egypt. Data mining is a method of predictive analysis which can explore tremendous volumes of information to discover hidden patterns and relationships. Our aim here was to develop a non-invasive algorithm for prediction of HCC. Such an algorithm should be economical, reliable, easy to apply and acceptable by domain experts. Methods: This cross-sectional study enrolled 315 patients with hepatitis C virus (HCV) related chronic liver disease (CLD); 135 HCC, 116 cirrhotic patients without HCC and 64 patients with chronic hepatitis C. Using data mining analysis, we constructed a decision tree learning algorithm to predict HCC. Results: The decision tree algorithm was able to predict HCC with recall (sensitivity) of 83.5% and precession (specificity) of 83.3% using only routine data. The correctly classified instances were 259 (82.2%), and the incorrectly classified instances were 56 (17.8%). Out of 29 attributes, serum alpha fetoprotein (AFP), with an optimal cutoff value of ${\geq}50.3ng/ml$ was selected as the best predictor of HCC. To a lesser extent, male sex, presence of cirrhosis, AST>64U/L, and ascites were variables associated with HCC. Conclusion: Data mining analysis allows discovery of hidden patterns and enables the development of models to predict HCC, utilizing routine data as an alternative to CT and liver biopsy. This study has highlighted a new cutoff for AFP (${\geq}50.3ng/ml$). Presence of a score of >2 risk variables (out of 5) can successfully predict HCC with a sensitivity of 96% and specificity of 82%.

• Asian Pacific Journal of Cancer Prevention
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• 제17권4호
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• pp.1979-1985
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• 2016

Background: Complementary and alternative medicine has been highly appreciated as a supportive regimen for classical treatment strategies. Here we offer a nutrition-based adjuvant therapy for liver fibrosis, a major risk factor for cirrhosis and hepatocellular carcinoma. Aim of the study: To evaluate the possible hepatoprotective effects of Jerusalem artichoke tubers (JAT) in combination with interferon and ribavirin. Materials and Methods: Twelve groups of rats were administered JAT, interferon and ribavirin either separately or in combination from day one of $CCL_4$ administration until the end of the study. Animals were killed after 8 weeks of $CCL_4$-induced hepatotoxicity. Results: Hepatocytes from rats treated with triple combination of interferon, ribavirin, and JAT showed more less normal architecture compared to $CCL_4$-treated rats. We also detected significantly higher hepatic protein expression levels of p53, BAX and transforming growth factor-${\beta}$ (TGF-${\beta}$) in the $CCL_4$-intoxicated group compared to normal controls, as evidenced by immunohistochemical staining and western blotting analyses. Addition of JAT as a supportive regimen improved response to ribavirin and interferon and effectively participated in retaining normal histopathological and biochemical criteria and significantly lowered protein expression of p53, BAX, and TGF-${\beta}$. Conclusions: We suggest that addition of JAT as a supportive r egimen to interferon and ribavirin effectively potentiates their anti-fibrotic effects.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제23권4호
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• pp.311-318
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• 2020

Chronic hepatitis B viral (HBV) infection remains a major health threat, especially in high-prevalence areas. Most infants infected by mother-to-infant HBV transmission become chronic carriers. In Taiwan, many important preventive interventions have been implemented to block the perinatal transmission of HBV in the past 35 years. The first nationwide universal HBV vaccination program was launched in Taiwan in July 1984. The three-dose HBV vaccine completion rate reached 98.1% in 2018. The prevalence of Hepatitis B surface antigen (HBsAg) decreased from 9.8% in pre-vaccinated period in 1984 to 0.5% in the vaccinated cohort in 2014. The incidence of hepatocellular carcinoma in children aged 6-9 years significantly declined from 0.52 to 0.13 per 100,000 children born before and after 1984, respectively. Furthermore, we have performed a maternal HBV screening program during pregnancy since 1984, with the screening rate peaked at 93% in 2012. The HBsAg- and HBeAg-seropositive rate in pregnant women declined from 13.4% and 6.4% in 1984-1985 to 5.9% and 1.0% in 2016, respectively. To closely control perinatal HBV infection, we have administered hepatitis B immunoglobulin immediately after birth and checked the serum level of HBsAg and anti-HBs in high-risk babies born to HBsAg-seropositive mothers, irrespective of their HBeAg status, since July 2019. We have also adopted short-term antiviral treatments such as tenofovir 300 mg daily in the third trimester for highly viremic mothers and reduced the perinatal infection rates from 10.7 to 1.5%. Through all these efforts, we expect to meet the global goal of eliminating HBV infection by 2030.

• 대한유전성대사질환학회지
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• 제12권2호
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• pp.99-103
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• 2012

I형 타이로신혈증은 타이로신의 분해 과정 중 최종단계에 관여하는 효소인 fumarylacetoacetate hydrolase(FAH)의 결핍에 의한 대사 이상질환이다. 급성 I형 타이로신혈증은 치명적인 간부전이나 혈액응고장애와 같은 급성 임상증상이 나타난 이후에는 예후가 불량하였으나 최근에는 신생아 대사이상 선별검사를 통해 조기 진단이 가능해졌고 2-(2-nitro-4-trifluoro-methylbenzyol)-1,3 cyclohexanedione nitisinone (NTBC) 약물 치료로 타이로신혈증의 치료 성적이 향상됨에 따라 신생아 대사이사 선별검사를 통한 조기 진단과 조기 치료가 더욱 중요해졌다고 할 수 있다. 이에 저자들은 심각한 출혈이나 간부전과 같은 급성 이상 증상이 나타나기 전 신생아 대사이상 선별검사로 조기 진단 및 조기 중재적 치료로 양호한 경과를 보이고 있는 I형 타이로신혈증 1례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Annals of Surgical Treatment and Research
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• 제95권5호
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• pp.267-277
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• 2018

Purpose: The aim of this study was to analyze survival outcomes in 1,000 consecutive liver transplantations (LTs) performed at a single institution from 1993 to April 2017. Methods: The study population was divided into 2 groups based on donor type: deceased donor LT (DDLT; n = 181, 18.1%) and living donor LT (LDLT; n = 819; 81.9%), and into 3 periods based on the number of cases (first 300 cases, middle 300 cases, last 400 cases). Results: Infection was the most common cause of death, accounting for 34.8% (95 of 273). Mortality due to hepatocellular carcinoma recurrence occurred most frequently between 1 and 5 years after transplantation. Mortality rate by graft rejection was highest between 5 and 10 years after transplantation. And mortality by de novo malignancy occurred most frequently after 10 years after transplantation. The patient survival rates for the entire population at 5 and 10 years were 74.7%, and 68.6%, respectively. There was no difference in survival rate between the LDLT and DDLT groups (P = 0.188). Cause of disease, disease severity, case period, and retransplantation had a significant association with patient survival (P = 0.002, P = 0.031, P = 0.003, and P = 0.024, respectively). Conclusion: Surgical techniques and perioperative management for transplant patients have improved and undergone standardization. Controlling perioperative infection and managing patients with HCC as LT candidates will result in better outcomes.

• Korean Journal of Radiology
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• 제19권6호
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• pp.1053-1065
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• 2018

Objective: To evaluate the clinical impact of using registration software for ablative margin assessment on pre-radiofrequency ablation (RFA) magnetic resonance imaging (MRI) and post-RFA computed tomography (CT) compared with the conventional side-by-side MR-CT visual comparison. Materials and Methods: In this Institutional Review Board-approved prospective study, 68 patients with 88 hepatocellulcar carcinomas (HCCs) who had undergone pre-RFA MRI were enrolled. Informed consent was obtained from all patients. Pre-RFA MRI and post-RFA CT images were analyzed to evaluate the presence of a sufficient safety margin (${\geq}3mm$) in two separate sessions using either side-by-side visual comparison or non-rigid registration software. Patients with an insufficient ablative margin on either one or both methods underwent additional treatment depending on the technical feasibility and patient's condition. Then, ablative margins were re-assessed using both methods. Local tumor progression (LTP) rates were compared between the sufficient and insufficient margin groups in each method. Results: The two methods showed 14.8% (13/88) discordance in estimating sufficient ablative margins. On registration software-assisted inspection, patients with insufficient ablative margins showed a significantly higher 5-year LTP rate than those with sufficient ablative margins (66.7% vs. 27.0%, p = 0.004). However, classification by visual inspection alone did not reveal a significant difference in 5-year LTP between the two groups (28.6% vs. 30.5%, p = 0.79). Conclusion: Registration software provided better ablative margin assessment than did visual inspection in patients with HCCs who had undergone pre-RFA MRI and post-RFA CT for prediction of LTP after RFA and may provide more precise risk stratification of those who are treated with RFA.

• 한국방사선학회논문지
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• 제13권4호
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• pp.539-546
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• 2019

간조직 생검은 침습적이며, 합병증의 위험을 동반함에도 불구하고 간섬유화의 정도를 예측하는 표준 진단법으로 적용된다. 이러한 단점을 보완하기 위해 본 연구에서는 만성 C형간염 환자 200명을 대상으로 Fibroscan(R)을 이용하여 간섬유화 등급을 나누고, ROC 곡선을 측정하여 혈청학적검사로 계산되는 FIB-4, APRI, AAR의 유용성과 실질적인 Cut-off value를 알아보고자 하였다. 그 결과 간섬유화 평가를 위해 AAR을 적용하는 것보다는 APRI, FIB-4를 이용하는 것이 적절할 것으로 생각되며, 경한 섬유화 등급을 예측하기 위해서는 APRI, 간경변군인 F4등급에는 FIB-4를 사용하는 것이 유용하다고 판단된다. 혈청학적 간섬유화 표지자의 간편하고 반복 측정이 가능하다는 장점을 이용해 간 섬유화의 경과 관찰 기간을 줄일 수 있으므로 나아가 간경변과 간암의 유병률을 감소시킬 수 있을 것으로 사료된다.

• 한국간담췌외과학회지
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• 제28권2호
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• pp.238-247
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• 2024

Backgrounds/Aims: Prolonged use of steroids after liver transplantation (LT) significantly increases the risk of diabetes or cardiovascular disease, which can adversely affect patient outcomes. Our study evaluated the effectiveness and safety of early steroid withdrawal within the first year following LT. Methods: This study was conducted as an open-label, multicenter, randomized controlled trial. Liver transplant recipients were randomly assigned to one of the following two groups: Group 1, in which steroids were withdrawn two weeks posttransplantation, and Group 2, in which steroids were withdrawn three months posttransplantation. This study included participants aged 20 to 70 years who were scheduled to undergo a single-organ liver transplant from a living or deceased donor at one of the four participating centers. Results: Between November 2012 and August 2020, 115 patients were selected and randomized into two groups, with 60 in Group 1 and 55 in Group 2. The incidence of new-onset diabetes after transplantation (NODAT) was notably higher in Group 1 (32.4%) than in Group 2 (10.0%) in the per-protocol set. Although biopsy-proven acute rejection, graft failure, and mortality did not occur, the median tacrolimus trough level/dose/weight in Group 1 exceeded that in Group 2. No significant differences in safety parameters, such as infection and recurrence of hepatocellular carcinoma, were observed between the two groups. Conclusions: The present study did not find a significant reduction in the incidence of NODAT in the early steroid withdrawal group. Our study suggests that steroid withdrawal three months posttransplantation is a standard and safe immunosuppressive strategy for LT patients.

• 대한영상의학회지
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• 제85권2호
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• pp.363-371
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• 2024

목적 급성 담낭염은 간동맥 화학 색전술 후에 발생하는 비교적 드물지 않게 발생하는 합병증이며, 대부분 수술적 혹은 중재적 치료 없이 호전된다. 간동맥 화학 색전술 직후에 촬영한 cone beam CT 소견을 이용하여, 수술적 혹은 중재적 치료를 필요로 하는 담낭염의 발생률과 위험인자를 분석하고자 하였다. 대상과 방법 본 연구에서는 6년 동안 시행된 2633건의 간동맥 화학 색전술에 대해 후향적으로 분석하였다. 그중 시술 직후에 촬영한 cone beam CT에서 담낭에 색전 물질이 남아 있는 120명을 선택하여 급성 담낭염의 발생률과 위험인자에 대해 분석하였다. 결과 수술적 혹은 중재적 치료를 필요로 하는 담낭염의 전체 발생률은 0.45%였다. 색전 물질이 남아 있는 환자들 중에서는 10%에서 담낭염이 발생했다. 담낭염이 발생한 12명 중 8명은 담낭동맥의 색전술을 받은 환자들이었다. 결론 대부분의 담낭의 색전물질 침적은 추가적인 치료를 필요로 하지 않고 호전되지만, 담낭동맥의 색전술을 받은 경우에는 담낭염의 발생률이 높아 면밀한 모니터링이 필요하다.

• Tuberculosis and Respiratory Diseases
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• 제47권3호
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• pp.331-338
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• 1999

연구배경: 악성종양에 대한 진단 및 치료방법의 발전으로 악성종양 환자의 생존기간이 연장되고, 생존율 또한 과거보다 높아졌다. 또한 수술적 절제술로 악성종양을 제거한 환자 중 약 10% 정도는 약 10년이내 속발성 원발성 종양이 생긴다고 알려지고 있다. 그래서 다발성 원발성 악성종양의 원인과 위험 인자 및 조기 진단은 매우 중요한 일이다. 저자들은 다발성 원발성 악성종양에 병발한 폐암과 원발성 폐암의 임상적 특징과 p53 종양 억제 유전자 변이에 의한 변이형 p53 발현율을 조사하여 두 질환사이의 차이를 비교해 보았다. 방법: Moertel의 다발성 원발성 악성 종양의 분류에 적합한 환자 중 폐암이 동반된 20례(비소세포암 16례, 소세포암 4례)와 비교군으로 원발성 비소세포암 26례를 대상으로 변이형 p53 발현율을 면역조직화학 염색법을 이용하여 조사하였다. 곁과: 폐암과 동반된 악성종양은 위암이 8례로 가장 많았고, 식도암, 폐암, 대장암이 각각 2례 이었으며, 후두암, 방광암, 간암, 유방암, 부신암, 소장암이 각각 1례 이었다. 다발성 원발성 악성종양과 병발한 비소세포암과 원발성 비소세포암의 남녀비는 각각 7:1, 2.7:1 이었고, 흡연력은 각각 16례 중 15례, 26례 중 19례가 있었다. 다발성 원발성 악성종양에 병발한 비소세포암은 원발성 비소세포암에 비해 임상적 병기가 비교적 균등하였으며(p<0.05), 조직학적 분화도는 나쁜 경우가 많은 경향이었다(p>0.05). 다발성 원발성 악성종양에 병발한 비소세포암과 원발성 비소세포암의 변이형 p53 각각 62.5%, 76.7%로 유의한 차이는 없었다(p>0.05). 결론: 다발성 원발성 악성종양에 병발한 비소세포암의 변이형 p53 단백 발현율은 차이가 없었다. 변이형 p53 단백 염색법은 다발성 원발성 악성종양에 병발한 비소세포암과 원발성 비소세포암을 구별하는데 유용성을 인정할 수 없었다.