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OBJECTIVE: Research comparing patients who received liver transplantation (LT) for hepatocellular carcinoma (HCC) has produced varying outcomes regarding survival and disease-free survival. The objective of this study is to determine the factors that influence the disease-free and overall survivals of those who have undergone LT for HCC and to compare the outcomes of living versus deceased donor liver transplants. MATERIALS AND METHODS: We retrospectively analyzed data on patients aged 18 and above who received LT for HCC from 2006 to 2022. Patients with a follow-up period of less than 6 months and who did not meet the University of California San Francisco criteria were excluded. The data from 58 patients were analyzed. We split the patients into living donor liver transplantation (LDLT) (group 1) and deceased donor liver transplantation (DDLT) (group 2). RESULTS: The mean age was 56 ± 8.1 years. There were 49 males and 9 females. The median of the alphafetoprotein (AFP) level and model for end-stage liver disease score was 10.1 ng/mL and 11, respectively. The 1-, 3-, 5-, and 10-year disease-free survival rates were 86%, 76.5%, 76.5%, and 76.5%, respectively. The survival rates for the same periods were 94.8%, 74.9%, 70.6%, and 67.4%. The receiver operating characteristic analysis revealed that AFP > 31.8 ng/mL and a total tumor size >3.85 cm raise the likelihood of HCC recurrence post-LT. CONCLUSION: Based on the current literature, the overall survival and disease-free survival rates are influenced by factors such as AFP value, total tumor number, and total tumor diameter. In our study, the AFP value and total tumor size had an impact on the recurrence of HCC, and the survival rates were comparable on LDLT and DDLT.
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This study aims to reveal the relationship between regulatory B cell (Breg) subsets and chronic-active antibody-mediated rejection (c-aABMR) in renal transplant recipients. Our study involved 3 groups of participants: renal transplant recipients with biopsy-proven c-aABMR as the chronic rejection group (c-aABMR, n = 23), recipients with stable graft functions as the patient control group (PC; n = 11), and healthy volunteers (HV; n = 11). Breg subsets, immature/transitional B cells, plasmablastic cells, B10 cells, and BR1 cells were isolated from venous blood samples by flow cytometry. The median values of Breg frequencies in the total lymphocyte population were analyzed. There were no significant differences between the study groups for immature and/or transitional B cell frequencies. Plasmablastic cell frequencies of the c-aABMR group (7.80 [2.10-27.40]) and the PC group (6.00 [1.80-55.50]) were similar, but both of these values were significantly higher than the HVs' (3.40 [1.20-8.50]), (respectively, P = .005 and P = .039). B10 cell frequencies were also similar, comparing the c-aABMR (4.20 [0.10-7.40]) and the PC groups (4.10 [0.10-5.90]), whereas the HVs (5.90 [2.90-8.50]) had the highest B10 cell frequency with an only statistical significance against the PC group (respectively, P = .09 and P = .028). The c-aABMR and the PC groups were similar regarding BR1 cell frequencies. However, the HV group significantly had the highest frequency of BR1 cells (5.50 [2.80-10.80]) than the other groups (P < .001 for both). We demonstrated that frequencies of B10 and BR1 cells were higher in HVs than in transplant recipients, regardless of rejection state. However, there was no significant relation between Breg frequencies and the c-aABMR state.
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Linfocitos B Reguladores , Trasplante de Riñón , Humanos , Trasplante de Riñón/efectos adversos , Receptores de Trasplantes , Anticuerpos , Riñón , Rechazo de InjertoRESUMEN
BACKGROUND: Liver transplantation (LT) is a treatment modality in the pediatric population for several diseases like biliary atresia, metabolic liver disease, hepatoblastoma, and so on. According to the Organ Procurement and Transplantation Network, 5-year survival was reported as 85.4% to 93.5% by age after pediatric liver transplantation (PLT). This study aimed to evaluate our single-center experience of PLT by analyzing long-term results, comparing the outcomes with the literature, and identifying predictors of patient survival. METHODS: The data of 40 patients who underwent LT at <18 years of age between June 2015 and June 2021 were studied retrospectively. Recipient characteristics such as age, sex, etiology of liver disease follow-up time, postoperative vascular and biliary complications, and donor characteristics were evaluated. RESULTS: There were 20 (50%) girls and 20 (50%) boys, and the median age was 42 (IQR = 9-117) months. The most common indications of LT were biliary disorders (45%). A whole liver graft was used in 7 (17%), a right lobe graft in 9 (23%), a left lobe graft in 4 (10%), and a left lateral lobe graft in 20 (50%) of the recipients. The 1-, 3-, 5-, and 7-year survival rates were 85%, 82.1%, 82.1%, and 82.1%, respectively. The multivariate survival analysis revealed that the pediatric end-stage liver disease score, hepatic artery thrombosis, and portal vein thrombosis are associated with overall mortality. CONCLUSION: In conclusion, our long-term survival is similar to the literature, with satisfactory results. However, reducing the vascular complication rates can provide superior results on PLT.
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Enfermedad Hepática en Estado Terminal , Hepatopatías , Trasplante de Hígado , Trombosis , Masculino , Femenino , Niño , Humanos , Adulto , Trasplante de Hígado/métodos , Enfermedad Hepática en Estado Terminal/cirugía , Estudios Retrospectivos , Complicaciones Posoperatorias/epidemiología , Índice de Severidad de la Enfermedad , Hepatopatías/complicaciones , Trombosis/complicaciones , Donadores Vivos , Supervivencia de Injerto , Resultado del TratamientoRESUMEN
PURPOSE: It is known that vitamin D has positive effects on graft functions (reduce fibrosis, suppress excessive inflammatory response, improve graft functions). In our study, it was aimed to evaluate the effects and predictive roles of vitamin D, the expression of vitamin D receptor (VDR) in lymphocytes, monocytes, natural killer cells on chronic rejection and graft functions in kidney transplant patients. METHODS: Seventy one people were included in the study and analyses were made by dividing them into 3 groups. Group 1: Healthy control (n = 29), Group 2: Kidney transplant patients with stable kidney function (n = 17), and Group 3: Kidney transplant patients with chronic rejection diagnosis (n = 25). Serum 25-hydroxycholecalciferol, 1.25 dihydroxycholecalciferol levels and VDR percentages in CD4 + , CD8 + , CD14 + , CD56 + cells were measured in 3 groups. ROC analyses and logistic regression models were performed to predict rejection and long-term graft functions. RESULTS: The percentage of VDR expression in CD4 + lymphocytes (p < 0.001) and CD14( +) monocytes (p < 0.001), 25-hydroxycholecalciferol and 1.25 dihydroxycholecalciferol levels were lower in group 3 was detected. In ROC analyses and logistic regression models, VDR expression in CD4( +)T lymphocytes was shown to have a statistically significant value in the development of chronic rejection (Odds ratio 0.86: 0.76-0.92; p = 0.001/AUC = 0.941, p < 0.001) and prediction of 5th-year graft functions (Odds ratio 0.93: 0.88-0.98; p = 0.017/AUC = 0.745, p = 0.007). CONCLUSION: In our study, it was shown that low vitamin D and VDR expression is associated with poor outcome and VDR expression in CD4( +)T lymphocytes is predictive in terms of graft function and rejection.
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Trasplante de Riñón , Humanos , Receptores de Calcitriol , Vitamina D , Calcifediol , Rechazo de Injerto/diagnóstico , Linfocitos T CD4-Positivos , Linfocitos T CD8-positivos , DihidroxicolecalciferolesRESUMEN
OBJECTIVES: Maple syrup urine disease (MSUD) is an autosomal recessive inherited disorder. Despite the advances in medical nutrition therapies, classical phenotype causes severe neurological disorders and sudden death. It is known that MSUD patients do not experience metabolic attacks despite their free diet after liver transplantation (LT). This study aims to reveal the long-term results, development, mental, motor, intellectual and nutritional status of MSUD patients who underwent LT. METHODS: The data of 12 patients who underwent deceased donor (5 recipients) and living donor liver transplantation (7 recipients) were retrospectively analyzed. The age, genotype, psychometric and mental status, development, BCAA values, type of LT, donor-recipient proximity, complications, and survival were assessed. RESULTS: There were 4 (33%) girls and 8 (67%) boys. The mean current age was 9.33 ± 4.58 years. The mean follow-up time was 3 ± 2.5 years. The repeated measures of leucine and isoleucine values revealed that there were no significant differences from the pre-LT to post-LT 1-year. The protein-restricted nutrition was switched to a free diet when oral intake was opened after LT. None of the recipients experienced metabolic attacks after the living donor or deceased donor LT. The 1-, 3-, and 5-year survival rate of the patients is 83.3%. There was no significant difference in survival between living and deceased donor liver transplantation. CONCLUSIONS: Liver transplantation is a treatment option for MSUD in proper conditions to save the patient life, increase the quality of life, and provide essential amino acids with free diet intake for growth and development.
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Trasplante de Hígado , Enfermedad de la Orina de Jarabe de Arce , Humanos , Enfermedad de la Orina de Jarabe de Arce/cirugía , Trasplante de Hígado/métodos , Donadores Vivos , Estudios Retrospectivos , Turquía , Calidad de VidaRESUMEN
In living donor liver transplant, it is vital to perceive the hepatic artery anatomy and its variants. In the normal hepatic artery pattern, the common hepatic artery originates from the celiac artery to form the proper hepatic artery and gastroduodenal artery. The proper hepatic artery divides into right and left branches that supply the right and left lobes of the liver, respectively. Here, we report a rare variation of the right hepatic artery that was detected during a living liver right lobe hepatectomy. A 59-year-old man with alcoholic liver cirrhosis underwent living donor liver transplant. The patient's niece (a 47-year-old woman) volunteered to be a living donor. During the hilar dissection, we noticed that the anterior and posterior branches of the right hepatic artery passed through points anterior and posterior to the common hepatic duct, respectively. The right anterior hepatic artery and the right hepatic artery were divided separately. Although previously defined classifications have described anatomical variations of origin, branching, and course of hepatic artery, the topographical relationship of the anterior right hepatic artery and the posterior right hepatic artery versus the common hepatic duct has not been a matter of concern. Awareness must be maintained of this rare anatomical course of the right hepatic artery, especially in living liver right lobe donors. In the event of donors with rare variations, living donor liver transplant should be performed by an experienced team.
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Hepatectomía , Trasplante de Hígado , Masculino , Femenino , Humanos , Persona de Mediana Edad , Arteria Hepática/diagnóstico por imagen , Arteria Hepática/cirugía , Trasplante de Hígado/efectos adversos , Donadores Vivos , Conducto Hepático Común , Hígado/anatomía & histologíaRESUMEN
BACKGROUND: The aim of the study was to evaluate the prognostic factors and treatment alternatives of antibody-mediated rejection (ABMR) in renal transplant patients. METHODS: Three thousand renal transplant patients were included in the study. The patients were first divided into 2 groups. Group 1: ABMR [-] recipients (n = 2871), Group 2: ABMR (+) recipients (n = 129). ABMR patients were compared among themselves by dividing them into 3 subgroups (early-active, late-active, chronic-active). The study was performed retrospectively. Different combinations of methylprednisolone, intravenous immunoglobulin (IVIG), rituximab, plasmapheresis (PP), anti-thymocyte globulin (ATG) were used in the treatment and the results were compared. RESULTS: Graft survival and functions were worse and the rates of CAD, delayed graft function, BK virus, and cytomegalovirus higher in patients with ABMR. Also, graft survival was lower in patients with serum creatinine ≥3 (P = 0.001), GFR <30 (P <0.001), and spot urine protein to creatinine ratio ≥1 (P = 0.042) at the time of diagnosis. High interstitial fibrosis and tubular atrophy scores in chronic ABMR cases and high intimal arteritis scores in active ABMR cases were poor prognostic factors. CONCLUSIONS: The study showed that ABMR has a poor prognosis in terms of clinical parameters, and treatment should be individualized according to pathologic findings and graft functions at the time of diagnosis. Pulse methylprednisolone and IVIG should be used in the treatment of all ABMR patients, but PP, rituximab, and ATG should be used in selected cases. ABMR has a poor prognosis and treatment should be individualized.
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Trasplante de Riñón , Humanos , Trasplante de Riñón/efectos adversos , Rechazo de Injerto/terapia , Rechazo de Injerto/tratamiento farmacológico , Rituximab/uso terapéutico , Inmunoglobulinas Intravenosas/uso terapéutico , Estudios Retrospectivos , Supervivencia de Injerto , Anticuerpos , Suero Antilinfocítico/uso terapéutico , Pronóstico , Metilprednisolona/uso terapéutico , IsoanticuerposRESUMEN
INTRODUCTION: In this study, it was aimed to compare scintigraphic split renal function (SRF) and computed tomographic (CT) kidney volumes by semiautomatic segmentation method in predicting graft functions after kidney transplantation. METHODS: One hundred and twelve patients (77 males, 35 females) who had a living-donor kidney transplant between 2015 and 2017 in our centre were included in the study. While SRF was calculated with technetium-99m-diethylenetriaminepentaacetic acid (99m Tc-DTPA) scintigraphy, CT angiography was used for volumetric calculations. RESULTS: CT-volumetric measurements, especially renal cortical volume (RCV: 103.8 ± 20 ml) and ratio to body mass index (RCV/BMI: 4.45 ± 1.3) were found to be more significant than 99m Tc-DTPA-SRF in predicting graft functions. The correlations between SRF and RCV with 6th-month estimated glomerular filtration rate (eGFR) (rSRF: 0.052, rRCV: 0.317, p = 0.041) and 1st-year eGFR (rSRF: 0.104, rRCV: 0.374, p = 0.033) were found to be more significant in favour of RCV. The correlation between SRF/BMI and RCV/BMI with 1st-, 6th- and 12th-month eGFR (respectively, p = 0.02/0.048/0.024) were found to be more significant in favour of RCV/BMI. Although univariate analysis showed a significant relationship between most volumetric measurements and 1st-year graft functions, in multivariate analysis only RCV [odds ratio (OR): 1.04 (1.01-1.07), p = 0.023] and RCV/BMI [OR: 2.5 (1.27-5.39), p = 0.013] showed a significant relationship between graft functions. CONCLUSION: In our study, it was shown that CT-based renal volumetric measurements, especially RCV and RCV/BMI, predicted graft functions more strongly than scintigraphic 99m Tc-DTPA-SRF.
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Trasplante de Riñón , Donadores Vivos , Femenino , Tasa de Filtración Glomerular , Humanos , Riñón/diagnóstico por imagen , Riñón/fisiología , Trasplante de Riñón/efectos adversos , Trasplante de Riñón/métodos , Masculino , Cintigrafía , Radiofármacos , Estudios Retrospectivos , Pentetato de Tecnecio Tc 99mRESUMEN
BACKGROUND: Prevalence of the end-stage liver disease in the elderly patients indicating a liver transplantation (LT) has been increasing. There is no universally accepted upper age limit for LT candidates but the functional status of older patients is important in pre-LT evaluation. This study aimed to examine the impact of older age on survival after living donor liver transplantation (LDLT). METHOD: A total of 171 LDLT recipients were assessed in two groups: age ≥65 and < 65. To eliminate selection bias propensity score matching (PSM) was performed, and 56 of 171 recipients were included in this study. RESULTS: There were 20 recipients in the older group and 36 in the younger. The 1-, 3-, and 5-year survival rates were 65.0%, 60.0%, and 60.0% in group 1; 88.9%, 84.7%, and 71.4% in group 2, respectively. The 1-year survival was significantly lower in the older recipients; however, overall survival rates were similar between the groups. Of the 56 recipients, 15 (27%) deaths were observed in overall, and 11 (20%) in 1-year follow-up. The univariate regression analysis after PSM revealed that MELD score affected 1- year survival and the multivariate analysis revealed that age ≥65 years and MELD score were the predictors of 1-year survival. CONCLUSION: At first sight, before PSM, survival appeared to be worse for older recipients. However, we have shown that there were confounding effects of clinical variables in the preliminary evaluation. After the elimination of this bias with PSM, This study highlights that older recipients have similar outcomes as youngers in LDLT for long-term survival.
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Enfermedad Hepática en Estado Terminal , Trasplante de Hígado , Anciano , Enfermedad Hepática en Estado Terminal/cirugía , Supervivencia de Injerto , Humanos , Donadores Vivos , Puntaje de Propensión , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
BACKGROUND: Low perioperative platelet count is a powerful independent risk factor for posthepatectomy liver failure. Usually, categorical effect of thrombocytopenia was taken into account; upper thresholds were not studied in depth, exclusively in living liver donors. METHODS: Living liver donors who underwent right hepatectomy were included. Preoperative characteristics of donors were identified and examined to predict posthepatectomy liver failure. To eliminate selection bias, one-to-one propensity score matching was performed. RESULTS: There were a total of 139 living donors and 40 (29%) donors developed posthepatectomy liver failure in the aftermath of the operation. Remnant liver volume ratio and preoperative platelet count were identified as adjustable independent risk factors (OR: 0.89 and 0.99, 95% CI: 0.79-0.99 and 0.98-0.99, respectively). After propensity score matching, odds ratio of preoperative platelet count was 0.99 (95% CI: 0.98-1.00). CONCLUSIONS: Preoperative platelet count, in addition to remnant liver volume ratio, can be used as a surrogate marker to predict the risk of posthepatectomy liver failure in living liver right lobe donors. Probability curves figured out from logistic regression analysis, in this regard, provided an explicit perspective of platelets having a decisive role on liver donor safety. Thus, remaining in safer remnant liver volume ratio limits with respect to preoperative platelet count should be addressed in safe donor selection strategies.
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Fallo Hepático , Trasplante de Hígado , Plaquetas , Hepatectomía/efectos adversos , Humanos , Hígado/cirugía , Fallo Hepático/etiología , Trasplante de Hígado/efectos adversos , Donadores VivosRESUMEN
The aim of this study was to evaluate the relation of Human Leukocyte Antigen-G (HLA-G) 14 bp ins/del (insertion/deletion) polymorphism and soluble HLA-G (sHLA-G) level with rejection in kidney transplant recipients. The study was planned as a case-control study involving two hundred fifty kidney transplant recipients. The case group consisted of 125 (female/male: 56/69) kidney transplant recipients diagnosed with acute (n = 52) and chronic rejection (n = 73). The control group consisted of one hundred twenty-five kidney transplant patients with no acute or chronic rejection matched by gender and age in the case group. The sHLA-G level in the recipient's plasma (at the time of rejection for the case, the same time as the case after the transplant for control) was analyzed by Enzyme-Linked Immunosorbent Assay (ELISA). HLA-G 3' untranslated region (3'UTR) polymorphism of recipient and donor was determined using agarose gel electrophoresis and DNA sequencing method. In our study, it was shown that acute rejection rate increased 1.06 times and chronic rejection rate increased 1.14 times in kidney transplant recipients with low serum sHLA-G levels. The rejection patients with the HLA-G 14 bp del/del genotype had higher sHLA-G levels post-transplantation. The frequency of acute rejection was lower in patients with HLA-G 14 bp del/del polymorphism than those with ins/ins and ins/del polymorphisms. This study proposes that HLA-G 3'UTR polymorphism and sHLA-G level might be useful in prediction of rejection in kidney transplant recipients.
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Regiones no Traducidas 3' , Biomarcadores/análisis , Rechazo de Injerto/diagnóstico , Antígenos HLA-G/genética , Trasplante de Riñón/efectos adversos , Polimorfismo Genético , Insuficiencia Renal Crónica/cirugía , Adolescente , Adulto , Anciano , Estudios de Casos y Controles , Femenino , Rechazo de Injerto/etiología , Humanos , Masculino , Persona de Mediana Edad , Insuficiencia Renal Crónica/patología , Adulto JovenRESUMEN
BACKGROUND AND AIMS: This study aimed to evaluate plasma neuron-specific enolase (NSE) and S100ß levels in orthotopic liver transplantation. MATERIALS AND METHODS: A total of 56 patients who underwent orthotopic liver transplantation were divided into 3 groups. Healthy donors (group D), end-stage liver failure (ESLF) patients (recipient, group R), and ESLF patients diagnosed with hepatic encephalopathy (HE, group HE). Prognosis, preoperative routine laboratory findings, serum NSE, and S100ß in samples obtained preoperation and first and sixth months postoperation were analyzed. RESULTS: Serum NSE and S100ß levels were significantly higher in ESLF patients compared to healthy donors, particularly during the preoperative period. There was a significant decrease in serum NSE and S100ß in ESLF patients during the postoperative measurement periods compared to preoperative levels. Serum NSE and S100ß levels measured at 3 different time points showed no significant difference between ESLF patients and ESLF patients with HE. However, the recent Model of End-Stage Liver Disease (MELD) and Child-Turcotte-Pugh (CTP) scores showed a significant correlation with serum NSE and S100ß in ESLF patients diagnosed with HE. Serum NSE and S100ß levels in healthy donors significantly increased within the first month following hepatectomy and decreased in the sixth month following surgery. CONCLUSION: Although serum NSE and S100ß levels significantly decreased with improved liver function in recipients following liver transplantation, there was no complete recovery within 6 months after surgery. The increase in serum levels of NSE and S100ß in donors measured following hepatectomy was detected to remain slightly higher in the sixth postoperative months.
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Biomarcadores/sangre , Trasplante de Hígado , Donadores Vivos , Fosfopiruvato Hidratasa/sangre , Subunidad beta de la Proteína de Unión al Calcio S100/sangre , Receptores de Trasplantes , Adulto , Femenino , Hepatectomía , Humanos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio , Pronóstico , Estudios ProspectivosRESUMEN
Large portosystemic shunts may cause portal steal syndrome in liver transplantation (LT). Because of the possible devastating consequences of the syndrome, the authors recommend perioperative management of these large shunts. Fourteen adult recipients who underwent portal flow augmentation, including left renal vein ligation (LRVL), renoportal anastomosis (RPA), shunt ligation (SL), and splenic vein ligation (SVL) for large spontaneous splenorenal shunt (SSRS), are included in this study, and the results were analyzed. A total of 13 patients had a large SSRS, and in 1 patient, the large shunt was placed between the superior mesenteric vein and the right renal vein. LDLT was performed in 13 patients. LRVL (n = 5), SVL (n = 6), RPA (n = 2), SL (n = 1) were performed to the patients as graft inflow augmentation. The graft-recipient weight ratios (GRWR) were less than 0.8% in 5 patients (35.7%): 2 had LRVL, and 3 had SVL. Small-for-size syndrome (SFSS) occurred only in these 2 patients with LRVL (GRWR ≤0.8%) and, splenic artery ligation was performed for graft inflow modulation. No mortality or serious complications were reported during follow-up. We consider that in patients with large SSRS and small-for-size grafts, SVL can be performed safely and with satisfactory outcomes.
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Cirrosis Hepática/patología , Cirrosis Hepática/cirugía , Hígado/patología , Vena Esplénica/cirugía , Procedimientos Quirúrgicos Vasculares/métodos , Adulto , Femenino , Humanos , Ligadura , Hígado/irrigación sanguínea , Hígado/cirugía , Trasplante de Hígado/métodos , Masculino , Persona de Mediana EdadRESUMEN
INTRODUCTION: Thyroid nodules are commonly seen. Our aim is to learn the behaviors and operational attitudes of surgeons approaching the thyroid nodules. In a literature search, our study is the first and only study performed merely on surgeons. MATERIALS- METODS: This cross-sectional study was done between June 2014-January 2015. The questionnaire consists of 25 questions. Initially, general questions consisting of demographic findings were asked. In step 2, questions consisting of the index case and case variants were asked. Results were compared with American Thyroid Association, European Thyroid Association guidelines, and Australia survey results. In the last step, questions about thyroid operations were asked. RESULTS: A total of 301 surgeons responded to the survey. The response rate was approximately 20%. Thirty nine were female and 262 were male. For the question that asks the diameter of the thyroid nodule that will require a thyroid fine needle aspiration biopsy (TFNAB), 47.5% of the surgeons will require a TFNAB for 1-2â¯cm solid nodules. 40.15% of the surgeons required a TFNAB regardless of size. 46.1% of the surgeons who required a TFNAB between 1 and 2â¯cm solid nodules also required scintigraphy at diagnosis of suppressed TSH case variant. CONCLUSION: In this survey, we identified differences from up-to-date guidelines about approaching thyroid nodules and perioperative thyroid surgery. From our perspective, surgeons need updated training requirements. This can be done with updated seminars across the country. Thereby approaches may become standard and consequently patients may have qualified services.
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Biopsia con Aguja Fina/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Cirujanos/estadística & datos numéricos , Glándula Tiroides/cirugía , Nódulo Tiroideo/cirugía , Adulto , Australia , Estudios Transversales , Femenino , Encuestas de Atención de la Salud , Humanos , Masculino , Persona de Mediana Edad , Glándula Tiroides/patología , Nódulo Tiroideo/patologíaRESUMEN
BACKGROUND: Dermatitis associated with ileostomy is an important problem that affects many people, especially children. The aim of this study was to investigate the therapeutic effects of ozone on dermatitis due to ileostomy, and to develop an alternative treatment option. MATERIAL/METHODS: A total of 28 rats were divided into 4 groups: control, ileostomy, ozone, and zinc oxide. Ileostomy was performed in all rats except the control group. After a 1-week waiting time, the ozone group was administered ozone therapy and the zinc oxide group was administered zinc oxide cream locally once a day for a total of 7 days. All rats were sacrificed at the end of this period. The efficacy of treatment was examined by biochemical, histopathological, and immunohistochemical parameters. The levels of malondialdehyde (MDA), total glutathione (tGSH), total antioxidant capacity (TAC), and total oxidant status (TOS) were measured from tissue. Vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (PCNA) were examined immunohistochemically. RESULTS: Dermatitis occurred pathologically in all rats that underwent ileostomy surgery. The lowest dermatitis score was in the ozone treatment group (p<0.05). Ileostomy dermatitis caused increased levels of MDA and TOS. Ozone treatment resulted in reduced MDA and TOS levels, while the levels of tGSH and TAC were increased (p<0.05). Both VEGF and PCNA immunostaining were augmented in the ozone treatment group (p<0.05). CONCLUSIONS: Local ozone application may be a good alternative compared to the conventional treatment methods for the prevention of skin lesions that develop after ileostomy.
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Dermatitis/etiología , Dermatitis/terapia , Ileostomía/efectos adversos , Ozono/uso terapéutico , Animales , Antioxidantes/metabolismo , Dermatitis/patología , Modelos Animales de Enfermedad , Glutatión/metabolismo , Inmunohistoquímica , Malondialdehído/metabolismo , Oxidantes/metabolismo , Ratas Sprague-DawleyRESUMEN
BACKGROUND: The aim of the study was to evaulate the effect of ozone and naringin on the intestine after intestinal ischemia-reperfusion(II/R) injury. METHODS: Thirty five rats divided into 5 groups of 7 animals: control, II/R, ozone, naringin and naringin + ozone. Only laparotomy and exploration of the superior mesenteric artery (SMA) were done in control group. In the experimental groups, SAM was occluded for 1 h and reperfused for 1 h. 15 min after ischemia, ozone (25 µg/ml, 0.5 mg/kg), naringin (80 mg/kg) and naringin + ozone(80 mg/kg + 25 µg/ml, 0.5 mg/kg) were infused intraperitoneally to each groups. Ileum tissues were harvested to determine intestinal mucosal injury and oxidative stress markers. For SMA occlusion, different than literature, silk suture binding was used. RESULTS: Oxidative stress markers were significantly low in experimental groups compared with II/R group (p < 0.05). Histopathologically, the injury score was significantly low at experimental groups compared with II/R group (p < 0.05). The lowest injury score was encountered at naringine + ozone group. CONCLUSIONS: Ozone alone or combined with naringin has a protective effect for mesenteric ischemia. Instead of using instruments such as clamps in the II/R rat model, silk binding may be used safely.
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Flavanonas/farmacología , Intestinos/irrigación sanguínea , Estrés Oxidativo/efectos de los fármacos , Ozono/farmacología , Daño por Reperfusión/tratamiento farmacológico , Animales , Modelos Animales de Enfermedad , Masculino , Oxidantes Fotoquímicos/farmacología , Ratas , Ratas Wistar , Daño por Reperfusión/metabolismoRESUMEN
PATIENT: Female, 14. FINAL DIAGNOSIS: Ovarian mucinous cystadenoma. SYMPTOMS: Abdominal enlargement ⢠abdominal pain ⢠constipation. MEDICATION: -. CLINICAL PROCEDURE: -. SPECIALTY: Obstetrics and Gynecology. OBJECTIVE: Rare disease. BACKGROUND: Although ovarian tumors are most commonly observed in adults, they relatively rarely occur in children. The majority of ovarian masses encountered in the premenarchal or childhood stages are non-neoplastic lesions such as benign functional cysts. Epithelial tumors account for 8-10% of all ovarian tumors and are histologically classified as mucinous or serous. The most common benign epithelial ovarian tumor is cystadenoma. CASE REPORT: We report the case of a 14-year-old premenarchal girl with chronic abdominal pain, constipation, and abdominal enlargement. A computed tomography detected a huge left ovarian cystic tumor. A 9-kg ovarian tumor was removed surgically. Pathology showed a benign mucinous cystadenoma (MCA). CONCLUSIONS: Ovarian neoplasms in children present a diagnostic quandary, and very often the diagnoses are missed or delayed. When the diagnosis is made, a prompt and fertility-preserving surgical treatment must be performed and followed to prevent recurrence.
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Cistoadenoma Mucinoso/diagnóstico , Neoplasias Ováricas/diagnóstico , Lesiones Precancerosas , Adolescente , Cistoadenoma Mucinoso/cirugía , Femenino , Humanos , Laparotomía , Estadificación de Neoplasias , Neoplasias Ováricas/cirugía , Tomografía Computarizada por Rayos XRESUMEN
BACKGROUND: The aim of this study was to evaluate the prognostic importance of the metastatic lymph node ratio for stage III colon cancer patients and to find a cut-off value at which the overall survival and disease-free survival change. MATERIAL/METHODS: Patients with pathological stage III colon cancer were retrospectively evaluated for: age; preoperative values of Crp, Cea, Ca 19-9, and Afp; pathologic situation of vascular, perineural, lymphatic, and serosal involvement; and metastatic lymph node ratio values were calculated. RESULTS: The study included 58 stage III colon cancer patients: 20 (34.5%) females and 38 (65.5%) males were involved in the study. Multivariate analysis was applied to the following variables to evaluate significance for overall survival and disease-free survival: age, Crp, Cea, perineural invasion, and metastatic lymph node ratio. The metastatic lymph node ratio (<0.25 or ≥0.25) is the only independent variable significant for overall and disease-free survival. CONCLUSIONS: Metastatic lymph node ratio is an ideal prognostic marker for stage III colon cancer patients, and 0.25 is the cut-off value for prognosis.
Asunto(s)
Biomarcadores de Tumor , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/fisiopatología , Metástasis Linfática/patología , Factores de Edad , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Análisis Multivariante , Invasividad Neoplásica/patología , Pronóstico , Estudios RetrospectivosRESUMEN
BACKGROUND: Pilonidal sinus disease is a common disease of young adults, which most frequently occurs in the sacrococcygeal region on the skin's midline. Various procedures, ranging from simple incision and curettage to complex flaps for natal cleft obliteration, have been described in the literature. MATERIAL/METHODS: We aimed to present the dermographic characters, post-operative complications, length of stay in hospital, time of return to daily activities, and recurrence rates of the patients in which we applied sinus excision and fasciocutaneous V-Y advancement flap due to primary complicated or recurrent sacrococcygeal pilonidal sinus disease. RESULTS: Patients with primary complicated and recurrent pilonidal sinus received a fasciocutaneous V-Y advancement flap in the general surgery service of our hospital. Eleven patients had recurrent disease. Thirty-seven patients received a unilateral V-Y flap and 8 patients received a bilateral V-Y flap. None of the patients had post-operative flap necrosis or wound opening. Two of the patients had a self-draining simple seroma and 3 of the patients had delayed wound healing in the perianal region of the incision, which was treated with dressing. The mean time required to return to daily activities was 7 days, and return to work took 17 days. In the mean 25-month follow-ups of the patients, no recurrences were detected. CONCLUSIONS: We think that fasciocutaneous V-Y advancement flap is an easily learned and practicable method that reduces the recurrences in the patients with primary complicated and recurrent pilonidal sinus, length of stay in hospital, and time to return to daily activities and work in the post-operative period.