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1.
Acta Chir Belg ; 123(5): 489-496, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35549649

RESUMO

BACKGROUND: Current standard treatment for perihilar cholangiocarcinoma (pCCA) is surgical resection. Bismuth-Corlette (BC) type IV pCCA is accepted as an unresectable disease. In the present study, the results of non-transplant surgical approaches in patients with BC type IV pCCA were examined. METHODS: Medical records of consecutive patients with BC type IV pCCA between 2010 and 2021 were retrospectively reviewed. Patients were subdivided according to operation type. Postoperative survival rates were compared. RESULTS: Hemihepatectomy with caudate lobe and extrahepatic bile duct (EHBD) resection was performed in 15 patients and only EHBD resection was performed in 10 patients. Ten of the cases were found to be unresectable at the stage of laparotomy. Median follow-up was 41.3 (24.8-57.9) months. Overall survival rate for all 35 patients was 56.4% at 1 year, 32.2% at 2 years, and 16.1% at 3 years. When survivals were compared according to operation type, 1, 2, and 3-year survivals were 80%, 57.1% and 42.9% for the hepatectomy group; 55.6%, 44.4% and 11.1% for the EHBD resection group; 75%, 0% and 0% in laparotomy-only group, respectively (p = 0.13). The best survival rates were obtained in patients with pCCA who underwent hepatectomy and were lymph node negative, 100% for 1 year, 66.7 for 2 years and 50% for 3 years. CONCLUSION: It is difficult to achieve high survival rates in BC type IV pCCA. However, these patients mostly benefit from resective treatments. Acceptable survival rates can be achieved, especially in the R0N0 patient group.


Assuntos
Neoplasias dos Ductos Biliares , Tumor de Klatskin , Humanos , Tumor de Klatskin/cirurgia , Tumor de Klatskin/patologia , Bismuto , Estudos Retrospectivos , Ductos Biliares Intra-Hepáticos/cirurgia , Ductos Biliares Intra-Hepáticos/patologia , Neoplasias dos Ductos Biliares/cirurgia
2.
Immunopharmacol Immunotoxicol ; 45(1): 102-113, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36066099

RESUMO

OBJECTIVE: Adults with end-stage of chronic liver diseases have lower antibody titers after hepatitis-B vaccination. We have less amount of knowledge about the effect of non-viral cause chronic liver fibrosis on vaccination. In this study, we investigated the effect of non-viral chronic liver fibrosis on hepatitis B vaccine and the effect of tetanous toxoid co-administration at the level of humoral and cellular immune responses in an experimental model. METHODS: Hepatitis B vaccine was administered either alone or in combination with tetanus toxoid in thioacetamide-induced fibrotic BALB/c mice. Fibrosis level was determined by Knodell scoring. Anti-HBsAg, biochemical parameters, inflammatory (IL-1ß, TNF-α), and anti-inflammatory (IL-10) cytokine levels were investigated in serum samples by automated systems and ELISA; respectively. Frequencies of activated lymphocytes were determined in flow cytometer. RESULTS: Antibody titers significantly decreased after immunization of fibrotic mice. However, co-administration of toxoid significantly elevated antibody titer. The percentage of CD19+CD69+ B lymphocytes was found to be lower in vaccinated fibrotic group compared to vaccinated naive group. Simultaneous administration of toxoid significantly increased the frequencies of CD4+ and CD8+ T cells expressing CD69 and CD127. Interestingly, CD19+CD5+CD1high Breg cells were significantly reduced in the group vaccinated with hepatitis B vaccine and toxoid, simultaneously. The reduction in Breg percentage did not expose a significant decrease in the level of IL-10. CONCLUSION: Non-viral chronic liver fibrosis causes a reduction on specific antibody level after vaccination. Reduction on Breg cell frequency may have an effect on elevation of antibody level after co-administration of tetanus toxoid.


Assuntos
Vacinas contra Hepatite B , Hepatite , Animais , Camundongos , Interleucina-10 , Linfócitos T CD8-Positivos , Vacinação , Toxoide Tetânico , Imunização , Imunidade Celular , Cirrose Hepática/induzido quimicamente , Fibrose , Modelos Teóricos
3.
Turk J Gastroenterol ; 33(5): 434-442, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35678802

RESUMO

BACKGROUND: Plasma lipids have been shown to relate to tumor biology. We aimed to analyze the effect of pre-transplant plasma lipid profiles on post-transplant tumor recurrence in patients with hepatocellular carcinoma and to identify any possible relationship between the pre-transplant lipid profile with maximum tumor diameter, number of tumor nodules, tumor differentiation, portal vein invasion, or serum biomarker levels. METHODS: Patients with hepatocellular carcinoma who underwent liver transplants between 2006 and 2021 had data collected pro- spectively and were analyzed retrospectively. Patients who did not have lipid profile data before transplant and whose post-transplant follow-up period was <90 days were excluded. Patients who had pre-transplant plasma lipid data and whose post-transplant follow-up period was >90 days were included in this study (n = 254). RESULTS: Lower high-density lipoprotein cholesterol levels were found to be significantly associated with post-Tx recurrence (38 vs 29.5, P < .001) and were also significantly associated with macroscopic portal vein thrombosis (39 vs 30.4, P < .021). There was no significant association between plasma lipids and tumor differentiation. Higher high-density lipoprotein cholesterol levels were significantly asso- ciated with good overall and disease-free survivals (P = .024 and P = .001). CONCLUSION: Pre-transplant low plasma high-density lipoprotein cholesterol levels were significantly associated with portal vein throm- bosis and poor post-transplant overall and disease-free survivals.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/cirurgia , Colesterol , Humanos , Lipídeos , Lipoproteínas HDL , Neoplasias Hepáticas/complicações , Recidiva Local de Neoplasia , Estudos Retrospectivos
4.
J Gastrointest Surg ; 26(2): 333-340, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34506030

RESUMO

BACKGROUND: Microscopic portal vein invasion (microPVI) and tumor multifocality are hepatocellular carcinoma (HCC) prognosis factors. To investigate whether microPVI and multifocality are directly related to each other. METHODS: We retrospectively analyzed the relationships between microPVI, multifocality, and maximum tumor diameter (MTD) in prospectively collected transplanted HCC patients. RESULTS: HCCs with 1, 2, or ≥ 3 foci had more microPVI in larger than in smaller HCCs, with microPVI being present in 52.24% of single large foci. Conversely, microPVI patients had similar percentages of single and multifocal lesions. A linear regression model of MTD, showed microPVI best associated with MTD, with 2.49 as coefficient, whereas multifocality had a 0.83 coefficient. A logistic regression model of microPVI showed significant association with tumor multifocality, especially for small HCCs. Trends for microPVI and multifocality in relation to MTD revealed that both increased with MTD but more significantly for microPVI. Survival was similar in patients with small HCCs, with or without microPVI, but was significantly worse in microPVI patients with larger HCCs. No patient survival differences were found in relation to focality. CONCLUSIONS: MTD had stronger associations with microPVI than with multifocality. microPVI was associated with worse survival in patients with large HCCs, but survival was not impacted by number of tumor foci. microPVI and multifocality appear weakly related, having different behavior in relation to MTD and survival.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/patologia , Humanos , Neoplasias Hepáticas/patologia , Veia Porta/patologia , Prognóstico , Estudos Retrospectivos
5.
Clin Pract (Lond) ; 18(8): 1804-1809, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34966540

RESUMO

OBJECTIVES: The majority of HCCs present at an advanced stage in which potentially curative therapies cannot be used. Surveillance ultrasound has been found to increase the numbers of patients diagnosed with small tumors, but it is often not used. We aimed to try to identify widely-available and cheap potential serum markers for use in patients at risk for HCC. MATERIAL AND METHODS: A comparison was made of the complete blood count and liver function tests in a group of patients (n=114) with proven small HCCs (≤ 2 cm) and patients without HCC (n=506), all of whom were treated by liver transplantation in our Liver Transplantation Institute. RESULTS: Significant differences were found for blood levels of WBC, lymphocytes, total bilirubin and transaminases. Several 2-parameter combinations were assessed, but only the combination of total bilirubin and lymphocytes was found to be significantly different between patients with small HCCs and no HCC. Multivariate regression analysis showed significance only for total bilirubin levels and lymphocyte counts. The results were confirmed using a separate small cohort of non-transplant patients. CONCLUSION: The combination of elevated levels of total bilirubin and lymphocyte counts holds promise for identification of patients with chronic liver disease who are at risk for HCC.

6.
J Gastrointest Cancer ; 52(4): 1211-1216, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34762264

RESUMO

PURPOSE: HCC patients typically present at an advanced tumor stage, in which surgical therapies cannot be used. Screening ultrasound exams can increase the numbers of patients diagnosed with small tumors, but are often not used in patients at risk for HCC. We evaluated clinically available and cheap potential blood tests as biomarkers for screening patients at risk for HCC. METHODS: A comparison was made of commonly used blood count and liver function parameters in a group of patients (n = 101) with small HCCs (≤ 3 cm) or without HCC (n = 275), who presented for liver transplantation in our institute. RESULTS: Significant differences were found for blood lymphocytes and AST levels. This 2-parameter combination was found to be significantly different between patients with small HCCs versus no HCC. Using the combination of lymphocytes and AST levels to dichotomize the HCC patients, only blood levels of alpha-fetoprotein among the tumor characteristics were found to be significantly different among the 2 HCC groups, as well as levels of blood total bilirubin, ALKP, and PLR ratio. The results were confirmed using a separate smaller cohort of non-transplanted small size HCC patients. CONCLUSION: The combination of elevated blood levels of lymphocyte counts and AST levels holds promise for screening of patients with chronic liver disease who are at risk for HCC.


Assuntos
Aspartato Aminotransferases/sangue , Carcinoma Hepatocelular/sangue , Neoplasias Hepáticas/sangue , Linfócitos , Biomarcadores Tumorais/sangue , Diagnóstico Diferencial , Humanos , Testes de Função Hepática , Prognóstico , Reprodutibilidade dos Testes , Turquia
7.
Transpl Int ; 34(11): 2226-2237, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34510566

RESUMO

This study aimed to demonstrate the efficacy of our diagnostic and therapeutic management algorithm and catheter-assisted (percutaneous transhepatic biliary tract drainage [PTBD] or transanastomotic feeding tube) hepaticojejunostomy (HJ) procedures in living liver donors (LLDs) with biliary complications. Living donor hepatectomy (LDH) was performed between September 2005 and April 2021 in 2 489 LLDs. Biliary complications developed in 220 LLDs (8.8%), 136 of which were male, and the median age was 29 (interquartile range [IQR]: 12) years. Endoscopic sphincterotomy ± stenting was performed in 132 LLDs, which was unsuccessful in 9 LLDs and required HJ. Overall, 142 LLDs underwent interventional radiologic procedures. Fifteen LLDs with biliary complications underwent HJ (PTBD catheter = 6 and transanastomotic feeding tube = 9) at a median of 44 days (IQR: 82). Following HJ, 14 LLDs did not have any complications throughout the median follow-up period of 1619 days (IQR: 1454). However, percutaneous dilation for HJ anastomotic stricture was performed in one patient. Biliary complications are very common following LDH; therefore, surgeons in the field should have a low threshold to perform HJ for biliary complications that persist after other treatments. Our catheter-assisted HJ techniques demonstrated a high success rate and aided HJ in a hostile abdomen during revisional surgery.


Assuntos
Sistema Biliar , Transplante de Fígado , Algoritmos , Criança , Drenagem , Humanos , Fígado , Transplante de Fígado/efeitos adversos , Doadores Vivos , Masculino , Complicações Pós-Operatórias , Estudos Retrospectivos , Resultado do Tratamento
8.
Transplant Proc ; 53(7): 2305-2311, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34452737

RESUMO

BACKGROUND: Early prediction of liver dysfunction after liver resection remains a challenge. We hypothesized that extracellular histone concentrations are a promising new biomarker for the detection of liver injury after donor hepatectomy. METHODS: This prospective study considered 93 living donors who underwent hepatectomy. Blood samples of donors were collected on postoperative day 1, and histone levels in the plasma samples of the patients were measured with total histone H3 sandwich ELISA kits. Among 86 right lobe donors, 23 (26.7%) were deemed to have a delayed liver function recovery according to the International Study Group of Liver Surgery's definition of posthepatectomy liver failure, whereas 63 (73.3%) were considered to have an adequate liver function recovery. RESULTS: The area under the receiver operating characteristic (ROC) curve for circulating histones in predicting persistent liver dysfunction was 0.618 ± 0.06 (95% confidence interval [CI], 0.501-0.735; P = .091). The cutoff point value obtained from the analysis of ROC curves was 0.895, with a sensitivity of 95.7% and a specificity of 32.9%, respectively, for examining a delayed liver function recovery (P = .015). The Fisher analysis significantly verified these results empirical influence function % 7.90 (95% CI, 3.91-11.90; P = .006). The univariate analysis determined that postoperative histones were identified as an independent risk factor of delayed liver function recovery (odds ratio, 10.8; 95% CI, 1.4-84.9; P = .024). CONCLUSIONS: The circulating histone negatively correlates with liver dysfunctions after donor hepatectomy and had the best value in predicting liver dysfunction within 24 hours after liver resection.


Assuntos
Histonas , Neoplasias Hepáticas , Hepatectomia/efeitos adversos , Humanos , Neoplasias Hepáticas/cirurgia , Complicações Pós-Operatórias/diagnóstico , Prognóstico , Estudos Prospectivos , Curva ROC , Recuperação de Função Fisiológica
9.
Clin Pract (Lond) ; 18(2): 1626-1632, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33972830

RESUMO

BACKGROUND: Inflammation and its markers are considered prognostically important for many cancers, including Hepatocellular Carcinoma (HCC). However, it is not really clear which markers are the best. AIMS: To assess in a cohort of prospectively-evaluated HCC patients who were treated with liver transplant and whose survival was known, multiple commonly used inflammatory markers in relation to survival and to both clinical and tumor aggressiveness parameters. RESULTS: Amongst 330 transplanted HCC patients, CRP was found to be the only significant inflammatory marker for survival, on multivariate Cox regression analysis. NLR, PLR, GGT, AST, ALT and the Glasgow inflammation score were also found to be significant, but on univariate analysis only. CRP was significant in patients with both small (< 5 cm) and large HCCs and in patients with elevated or low Alpha-Fetoprotein (AFP) levels. Comparison of HCC patients with high (>2.5 mg/ dL) compared low serum CRP levels showed significant differences for blood levels of NLR, LMR, Hb, total bilirubin and liver transaminases, as well as Maximum Tumor Diameter (MTD) and percent of patients with Portal Vein Thrombosis (PVT). CONCLUSIONS: Elevated serum CRP levels were associated with significantly increased MTD and percent of patients with PVT and significantly worse overall survival in HCC patients who were treated by liver transplantation.

11.
Clin Pract (Lond) ; 17(3): 1497-1505, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33343877

RESUMO

BACKGROUND: A characteristic of Hepatocellular Carcinoma (HCC) is to invade the portal venous system in the liver as a means of spread within the liver and systemically. The ensuing Portal Vein Thrombosis (PVT) is a poor prognosis parameter and often diagnosed radiologically pre-treatment. More limited Microvascular Portal Invasion (microPVI) is typically diagnosed on examination of tumors removed after treatment by resection or transplant. The biological characteristics and subsets of PVI are incompletely characterized. AIMS: To examine HCC patients with and without microPVI to understand the clinical relationships to other tumor and clinical characteristics and to survival. METHODS: A cohort of 270 liver transplant patients with HCC without macroscopic PVT that were available to us was examined. Patients with (165) and without (105) microPVI were compared for survival and clinical features. RESULTS: The mean survival of patients with and without microPVI was significantly different: 86.6 versus 110.5 months, p=0.007.The microPVI+ patients differed from microPVI- patients in having a significantly larger number of tumor nodules, tumor size and higher serum levels of both Alpha-Fetoprotein (AFP) and almost significant for higher Gamma-Glutamyl Transpeptidase (GGT, p=0.053). Survival in microPVI+ patients related significantly to serum GGT (p=0.006) but not to AFP levels. The incidence of microPVI increased with increase in tumor size and survival decreased significantly with increase in tumor size for microPVI patients. Increase in tumor size was also associated with significantly higher serum GGT levels in patients who were microPVI+, but not in those who were microPVI. Furthermore, patients with microPVI who had prolonged survival significantly differed from those with shorter survival in respect only to tumor size and serum GGT levels. CONCLUSION: These findings draw attention to a group of patients with microPVI who have long survival and to the usefulness of serum GGT levels in their evaluation and prognosis.

12.
J Gastrointest Cancer ; 51(4): 1152-1156, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32856230

RESUMO

PURPOSE: HCC is a complex disease that is diagnosed in advanced stage and on the background of cirrhosis. Locoregional therapies provide sufficient downstaging to enable patients suitable for radical procedures such liver transplantation. However, the interval between locoregional therapies and definitive therapy is still controversial. We performed a review of literature to evaluate the role of waiting period between locoregional therapies and liver transplantation or resection from the perspective of cure and recurrence rates. METHODS: Thorough literature search was performed to evaluate the role of locoregional therapy and the interval to definitive therapies for the treatment of hepatocellular cancer. RESULTS: Usually, small tumors with lower tumor burden, in other words, tumors within Milan criteria, can be transplanted with an acceptable overall and disease-free survival. However, treating patients with locally advanced tumors is currently a matter of extensive research. Currently, locoregional therapies are applied to downstage the patients. However, the duration of waiting is a crucial point that needs further research. There is a consensus that the waiting interval between down-staging and transplantation should be no less than 3 months. This is important for selection of favorable tumor biology as well as from the point of antitumor immune response. CONCLUSION: Currently, there are no surrogate markers for surveillance of response to locoregional therapies as well as the antitumor immune response that develops as a result of down-staging.


Assuntos
Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/terapia , Transplante de Fígado/normas , Recidiva Local de Neoplasia/epidemiologia , Tempo para o Tratamento/normas , Técnicas de Ablação/métodos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/imunologia , Carcinoma Hepatocelular/mortalidade , Quimioembolização Terapêutica/métodos , Tomada de Decisão Clínica , Consenso , Intervalo Livre de Doença , Hepatectomia/normas , Humanos , Fígado/imunologia , Fígado/patologia , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/imunologia , Neoplasias Hepáticas/mortalidade , Terapia Neoadjuvante/métodos , Recidiva Local de Neoplasia/imunologia , Recidiva Local de Neoplasia/prevenção & controle , Estadiamento de Neoplasias , Seleção de Pacientes , Guias de Prática Clínica como Assunto , Radiocirurgia/métodos , Taxa de Sobrevida , Resultado do Tratamento , Microambiente Tumoral/efeitos dos fármacos , Microambiente Tumoral/imunologia , Microambiente Tumoral/efeitos da radiação
14.
J Gastrointest Cancer ; 51(3): 998-1005, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32519232

RESUMO

Survival was examined from a Turkish liver transplant center of patients with HCC, to identify prognostic factors. Data from 215 patients who underwent predominantly live donor liver transplant for HCC at our institute over 12 years were included in the study and prospectively recorded. They were 152 patients within and 63 patients beyond Milan criteria. Patients beyond Milan criteria were divided into two groups according to presence or absence of tumor recurrence. Recurrence-associated factors were analyzed. These factors were then applied to the total cohort for survival analysis. We identified four factors, using multivariate analysis, that were significantly associated with tumor recurrence. These were maximum tumor diameter, degree of tumor differentiation, and serum AFP and GGT levels. A model that included all four of these factors was constructed, the 'Malatya criteria.' Using these Malatya criteria, we estimated DFS and cumulative survival, for patients within and beyond these criteria, and found statistically significant differences with improved survival in patients within Malatya criteria of 1, 5, and 10-year overall survival rates of 90.1%, 79.7%, and 72.8% respectively, which compared favorably with other extra-Milan extended criteria. Survival of our patients within the newly defined Malatya criteria compared favorably with other extra-Milan extended criteria and highlight the usefulness of serum AFP and GGT levels in decision-making.


Assuntos
Carcinoma Hepatocelular/mortalidade , Neoplasias Hepáticas/mortalidade , Transplante de Fígado/mortalidade , Doadores Vivos/provisão & distribuição , Recidiva Local de Neoplasia/mortalidade , alfa-Fetoproteínas/análise , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/metabolismo , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/cirurgia , Prognóstico , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida
15.
Int J Biol Markers ; 35(2): 91-95, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32436751

RESUMO

BACKGROUND: Serum AFP levels are typically elevated in less than 50% of hepatocellular cancer (HCC) patients. Gamma-glutamyl transpeptidase (GGT) levels have been suggested to be a potentially useful HCC biomarker. AIMS: To assess in a cohort of prospectively evaluated HCC patients who underwent liver transplant and whose survival was known; the occurrence, prognosis, and clinical characteristics of patients with elevated serum GGT levels. RESULTS: Serum GGT levels were found to be elevated in a higher proportion in patients with either small or large HCC than alpha-fetoprotein (AFP) levels, and were significantly related to prognosis in patients with large size HCCs. There was no clear correlation between GGT and AFP levels, likely reflecting different HCC characteristics or HCC cell lineages associated with these two markers. Furthermore, elevated GGT was found in 24% of low-AFP patients with small tumors and 46% with large tumors. Elevated GGT levels were also significantly associated with microvascular invasion and tumor diameter. CONCLUSIONS: Elevated serum GGT levels were associated with HCC size and worse survival, and were unrelated to AFP levels. GGT may be a useful prognostic tumor marker, especially for low-AFP HCC patients.


Assuntos
Biomarcadores Tumorais/sangue , Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/métodos , gama-Glutamiltransferase/metabolismo , Carcinoma Hepatocelular/sangue , Feminino , Humanos , Neoplasias Hepáticas/sangue , Masculino , Prognóstico
16.
Asian J Endosc Surg ; 13(4): 560-563, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31943868

RESUMO

A 70-year-old man underwent laparoscopic anterior resection for sigmoid carcinoma, and on postoperative day 4, he required an emergency Hartmann procedure for bowel ischemia and anastomotic leakage. Five days after the emergency procedure, there was a massive hemorrhage through the anus that appeared in the abdominal drain. During exploration, the origin of the bleeding could not be found, and the rectal stump was closed over a urinary Foley catheter (with an inflated balloon) with the help of a purse-string suture. In the intensive care unit, massive hematochezia continued. Emergency transanal colonoscopy to the Hartmann stump found the rectum full of clotted blood. Active pulsatile arterial bleeding of a rectal Dieulafoy lesion was detected. After endoscopic hemostasis efforts failed, bleeding was stopped successfully by transanal suturing. The patient was discharged without any other problems, and no recurrent bleeding occurred during the 18-month follow-up. Here, we report a rectal Dieulafoy lesion in a Hartmann stump for the first time.


Assuntos
Laparoscopia , Reto , Idoso , Canal Anal , Fístula Anastomótica , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/cirurgia , Humanos , Masculino , Reto/cirurgia
17.
World J Gastrointest Surg ; 12(12): 520-533, 2020 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-33437403

RESUMO

BACKGROUND: There is increasing interest in transplanting patients with hepatocellular carcinoma (HCC) with tumors greater than 5 cm (Milan criteria). AIM: To investigate possible prognostically-useful factors for liver transplantation in HCC patients with large tumors. METHODS: In this clinical study, 50 patients with HCC who were transplanted at our Liver Transplant Center between April 2006 and August 2019 and had tumors greater than 6 cm maximum diameter were retrospectively analyzed. Their survival and full clinical characteristics were examined, with respect to serum alpha-fetoprotein (AFP) and gamma glutamyl transpeptidase (GGT) levels. Kaplan-Meier survival estimates were used to determine overall survival and disease-free survival in these patients. The inclusion criterion was evidence of HCC. Exclusion criteria were the presence of macroscopic portal vein thrombosis or metastasis and a follow-up period of less than 90 d. RESULTS: Using receiver operating characteristic curve (ROC) analysis, cutoff values of AFP 200 ng/mL and GGT 104 IU/L were identified and used in this study. Significantly longer overall survival (OS) and disease-free-survival (DFS) were found in patients who had lower values of either parameter, compared with higher values.  Even greater differences in survival were found when the 2 parameters were combined. Two tumor size bands were identified, in searching for the limits of this approach with larger tumors, namely 6-10 cm and > 10 cm. Combination parameters in the 6-10 cm band reflected 5-year OS of 76.2% in patients with low AFP plus low GGT vs 0% for all other groups. Patients with tumors greater than 10 cm, did not have low AFP plus low GGT. The most consistent clinical correlates for longer survival were degree of tumor differentiation and absence of microscopic portal venous invasion. CONCLUSION: Serum levels of AFP and GGT, both alone and combined, represent a simple prognostic identifier in patients with large HCCs undergoing liver transplant-ation.

18.
North Clin Istanb ; 4(3): 213-217, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29270568

RESUMO

OBJECTIVE: Liver transplantation from deceased donors with a central nervous system (CNS) malignancy has some risk of tumor transmission to the recipient. Though the risk is small, this group of donors is regarded as marginal. The use of marginal grafts may be an acceptable alternative practice in order to expand the donor pool in countries where there is a shortage of donated organs. The aim of this study was to examine and present the outcomes of liver transplantations performed using donors with a CNS tumor. METHODS: Between March 2002 and July 2017, 1990 (deceased donor: n=399, 20%; living donor: n=1591, 80%) liver transplantations were performed at the center. Of the 399 deceased donors, 17 (4.2%) had a CNS tumor. The data of donors with a CNS tumor and of recipients who survived for more than 1 month (n=11) were retrospectively reviewed. Demographic data, the grade of the CNS tumor, tumor transmission to recipient data, and survival rates were analyzed. RESULTS: Only 2 (18%) grafts were provided locally, 6 (54%) were offered to the transplantation center after all of the national centers had declined them, and 3 (37%) were made available to us by the national coordination center for patients with a documented notification of urgency. High-grade (grade III-IV) brain tumors were detected in 7 (64%) donors, while low-grade (grade I-II) tumors were found in 2 patients. The remaining 2 donors were not pathologically graded because the diagnosis was made radiologically. The 1-, 3-, and 5-year overall and tumor-free survival of the patients was estimated at 100%, 70%, and 45%, respectively. CONCLUSION: A median survival of 40 months (range: 13-62 months) was achieved in recipients of grafts from a donor with a CNS tumor and no donor-related malignant transformation was observed.

19.
North Clin Istanb ; 4(3): 262-266, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29270576

RESUMO

OBJECTIVE: The incidence of acute appendicitis after liver transplantation (LT) is extremely low, reported to be 0.09% to 0.49%, but the efficacy of the Alvarado score in this patient group has not been studied. This study was an investigation of the clinical management of patients who developed acute appendicitis after LT and the usefulness of the Alvarado score in the diagnosis. METHODS: The study was performed using the data of 7 patients treated for acute appendicitis who were among 1990 patients who underwent LT between March 2002 and July 2017. The Alvarado score of the patients was calculated and reliability was analyzed. RESULTS: In this study, the incidence of acute appendicitis in LT patients was 0.35%. All of the patients were in the adult age group; 86% were male. The mean age was 46.4±10.7 years and the timeframe for the development of appendicitis after transplantation was a median of 12 months (range: 4-101 months). The median Alvarado score was 7 (range: 5-9). All of the patients had an Alvarado score above 5 and 71% had a score of 7 or more. CONCLUSION: Acute appendicitis is very rare in LT patients. As with non-transplant patients, Alvarado scoring can be safely performed in LT patients.

20.
In Vivo ; 31(6): 1179-1185, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29102943

RESUMO

BACKGROUND/AIM: Infections are one of the most important causes of mortality and morbidity after liver transplantation as in all transplantations. Infectious complications are known to be among the preventable causes with appropriate diagnosis and treatment. So early prediction of the risk of infections will provide an effective approach to determine the local antimicrobial resistance and prevention of specific risk factors. The aim of this study was to deterimne whether specific markers are useful or not to deterimne a suspected infection in patients that have undergone liver transplantation. PATIENTS AND METHODS: The study included 65 patients with liver transplantation admitted to emergency room with suspicion of infection. These patient's CRP, procalsitonin (PCT), lactate, SAA and IL-6 levels were initially measured in the emergency department. The patients were classified to three categories according to culture results; culture-negative, culture-positive and control group. Studying parameters were investigated according to whether the culture was positive or negative in these patients. RESULTS: CRP, PCT, lactate, SAA and IL-6 levels were significanlty high in patients with suspected infeciton when compared to the control group (p<0.05). CRP, PCT and IL-6 levels were higher in the culture-positive group than in the culture-negative group and there was a significant variation (p<0.05). When suspecting an infection evaluating the parameters CRP, PCT and IL-6 was very meaningfull (p<0.05). CONCLUSION: We can use CRP, PCT, lactate, SAA and IL-6 parameters to identify presence of infection at the liver transplantation patients admitted to the emergency department with suspected infection. If CRP, PCT and IL-6 levels are significantly high we can guess the patient's positive culture.


Assuntos
Biomarcadores/metabolismo , Infecções/diagnóstico , Infecções/metabolismo , Transplante de Fígado/efeitos adversos , Adulto , Proteína C-Reativa/metabolismo , Calcitonina/metabolismo , Serviço Hospitalar de Emergência , Feminino , Humanos , Infecções/etiologia , Infecções/patologia , Interleucina-6/metabolismo , Ácido Láctico/metabolismo , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Fatores de Risco , Proteína Amiloide A Sérica/metabolismo , Turquia
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