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    2018 Annual Report of the European Liver Transplant Registry (ELTR)-50-year evolution of liver transplantation
    (2018) Yilmaz, Sezai
    The purpose of this registry study was to provide an overview of trends and results of liver transplantation (LT) in Europe from 1968 to 2016. These data on LT were collected prospectively from 169 centers from 32 countries, in the European Liver Transplant Registry (ELTR) beginning in 1968. This overview provides epidemiological data, as well as information on evolution of techniques, and outcomes in LT in Europe over more than five decades; something that cannot be obtained from only a single center experience.
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    2018 annual report of the european liver transplant registry (eltr)-50-year evolution of liver transplantation
    (2018) Yilmaz, Sezai
    The purpose of this registry study was to provide an overview of trends and results of liver transplantation (LT) in Europe from 1968 to 2016. These data on LT were collected prospectively from 169 centers from 32 countries, in the European Liver Transplant Registry (ELTR) beginning in 1968. This overview provides epidemiological data, as well as information on evolution of techniques, and outcomes in LT in Europe over more than five decades; something that cannot be obtained from only a single center experience.
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    Abdominal Closure with Bogota Bag after Pediatric Liver Transplantation.
    (Wiley-Blackwell, 2014) Kutluturk, Koray; Otan, Emrah; Karabulut, Ertugrul; Aydin, Cemalettin; Kayaalp, Cuneyt; Yilmaz, Sezai
    [Abstract Not Available]
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    Abdominal compartment syndrome due to distended rectal stump
    (Aves, 2007) Yilmaz, Mehmet; Isik, Burak; Ugras, Murat; Soeguetlue, Goekhan; Ara, Cengiz; Yilmaz, Sezai
    Abdominal compartment syndrome is a serious and life-threatening condition that requires early recognition and urgent decompressive laparotomy. This case report describes an abdominal compartment syndrome due to a distended rectal stump. The patient had a previous sigmoid resection with colostomy performed for sigmoid volvulus. As far as we know, this is the first report of abdominal compartment syndrome due to rectal stump. In such cases, high index of suspicion and early intervention affect the clinical course.
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    Abdominopelvic Actinomycosis Associated With an Intrauterine Device and Presenting With a Rectal Mass and Hydronephrosis: A Troublesome Condition for the Clinician
    (Int College Of Surgeons, 2012) Yilmaz, Mehmet; Akbulut, Sami; Samdanci, Emine Turkmen; Yilmaz, Sezai
    Actinomycosis is an uncommon, chronic, granulomatous disease that can be mistaken for a malignant tumor. Abdominopelvic actinomycosis constitutes about 20% of all actinomycosis cases and may mimic malignancy, tuberculosis, or other abdominopelvic inflammatory diseases. This condition is more prevalent in women who use an intrauterine device. We treated a 44-year-old woman who presented with vaginal discharge, right flank pain, dysuria, and difficulty with defecation. She had anorexia and weight loss (8 kg) during the previous 2 months and had a history of intrauterine device use for 12 years. Clinical, radiologic, and endoscopic examinations revealed a rectal mass and right hydronephrosis. Rectal biopsy showed nonspecific colitis. Laparotomy showed a mass that was invading and obstructing the pelvic orifice. Surgery included total abdominal hysterectomy, bilateral salpingo-oophorectomy, appendectomy, low anterior resection, and Hartmann colostomy. Histopathologic evaluation of surgical specimens showed actinomycosis originating from the tubo-ovarian structures and invading the rectal wall. The patient was placed on penicillin for 6 months, and then had closure of the colostomy with no complication.
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    Abo-Incompatible Liver Transplantation in Acute and Acute-On-Chronic Liver Failure
    (H G E Update Medical Publishing S A, 2013) Yilmaz, Sezai; Aydin, Cemalettin; BurakIsik; Kayaalp, Cuneyt; Yilmaz, Mehmet; Ara, Cengiz; Kutlu, Ramazan
    Background/Aims: ABO-incompatible (ABO-I) liver transplantation (LTx) may be mandatory in urgent conditions such as acute liver failure (ALF) or acute-on-chronic liver failure (ACLF) when deceased donor (DD) is unavailable or living donor (LD) selection is limited. This study specifically addresses the problem of urgent ABO-I LTx in critically ill adult patients having ALF or severely decompensated end-stage liver disease. Methodology: This series included 16 patients, 10 underwent ABO-I LD LTx and 6 underwent 7 ABO-I DD LTx. Multiple sessions of plasmapheresis reduced isoaglutinin titres to 1/16 or below, before and after LTx. Results: Mean follow-up period was 10.37 months (1 to 38). Median for MELD scores was 22.5 (17 to 30). Median survival was 9 months and mean survival was 19.5 months. Hospital mortality was 3 (18.7%). Two patients died due to small for size graft syndrome and cerebrovascular bleeding respectively. Hepatic artery thrombosis developed in 3 patients. Two of them died at postoperative 4th and 9th months. Third patient is still alive with hepatic necrosis problem. Conclusions: ABO-I LTx remains an important and unavoidable therapeutic option in adult patients with ALF or ACLF and urgent need for an allograft without the possibility to allocate a blood group compatible liver graft.
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    Acute liver failure in Turkey: A systematic review
    (Aves, 2014) Kayaalp, Cuneyt; Ersan, Veysel; Yilmaz, Sezai
    Background/Aims: To present the causes of acute liver failure in Turkey. Materials and Methods: International and national medical research databanks were searched for publications related to acute liver failure and originating from Turkey. Patients in the databank of acute liver failure of our center were also added to this literature search. Patients were evaluated for age, gender, etiology, treatment modality, and outcomes. Results: A total of 308 patients were analyzed. Hepatitis A (20.9%) for children and hepatitis B (34.7%) for adults were the most common causes of acute liver failure. Cryptogenic (18%) and metabolic (14%) reasons were the followings. Wilson's disease was the most common cause of metabolic diseases. Mushroom intoxication was the most frequent factor of toxic liver failure for both adults and children (13%). Firework intoxication, including yellow phosphorus, is an indigenous factor. Anti-tuberculosis agents (3.2%) were the main cause of drug-induced acute liver failures (9%). Paracetamol was responsible for only 0.7% of all acute liver failures. Survival of the transplanted patients (n=118) was better than the non-transplanted patients (n=178) (65% vs. 36% respectively, p<0.001) Conclusion: Preventable causes of acute liver failure in Turkey include hepatitis viruses and intoxication. Active vaccination and public awareness can decrease the number of acute liver failures. Paracetamol is not an emerging reason for acute liver failure in Turkey now, but selling it over the counter may increase the risks.
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    Acute Pancreatitis: A Rare but Serious Complication for Living Liver Donors; Risk Factors and Outcomes
    (Baskent Univ, 2022) Baskiran, Adil; Kement, Metin; Barut, Bora; Ozsay, Oguzhan; Karakas, Serdar; Koc, Cemalettin; Yilmaz, Sezai
    Objectives: The purposes of this study were to determine the incidence of acute pancreatitis after living donor hepatectomy and to investigate potential risk factors and outcomes. Materials and Methods: Clinical data of all donors who underwent donor hepatectomy between January 2015 and December 2016 in our liver transplant institute were reviewed. Donor data were obtained from a prospectively maintained database. The donors were divided into 2 groups according to whether they developed postoperative pancreatitis. The following data were compared between the 2 groups: demo graphic information (age, sex), body mass index, type of hepatectomy (right, left, or left lateral), intraoperative cholangiographic findings, operative time, blood loss, graft data (graft weight, remnant liver ratio), duration of postoperative hospital stay, and postoperative morbidity and mortality (if any). Pancreatitis severity and treatment outcomes were also examined in patients with postoperative pancreatitis. Results: Our study included 348 donors who underwent donor hepatectomy for living-donor liver transplant. Postoperative pancreatitis developed in 6 donors (1.7%). We found no statistical differences between patients with and without postoperative pancreatitis in terms of demographic and intraoperative findings. Neither loco-regional nor systemic complications of pancreatitis developed in any of the patients. Therefore, all were classified as having mild pancreatitis according to revised Atlanta classification. The mean APACHE II score was 5.2 +/- 1.2 points (range, 4-7 points). All patients with postoperative pancreatitis received conservative-supportive treatment. Conclusions: Although postoperative pancreatitis is a rarely reported complication in living liver donors, it should always be considered, especially in patients who unpredictably deteriorate in the postoperative period. Proper recognition and timely treatment can help avoid serious consequences.
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    Acute traumatic diaphragmatic ruptures: A retrospective study of 48 cases
    (Springer, 2011) Dirican, Abuzer; Yilmaz, Mehmet; Unal, Bulent; Piskin, Turgut; Ersan, Veysel; Yilmaz, Sezai
    Purpose. Traumatic diaphragmatic rupture (TDR) is associated with high rates of morbidity and mortality, and the preoperative diagnosis is difficult. Methods. Forty-eight patients with TDR were treated in our department between January 2000 and May 2009. The cause, location, size of rupture, associated morbidity and mortality, surgical material for repair, and predictive factors for overall outcome were evaluated. Results. There were 41 male patients (85%) and 7 female patients (15%) with a mean age of 33.8 years (range 17-69 years). Blunt trauma accounted for the injuries of 15 patients (31%) and 33 patients (68%) had penetrating injuries. The diagnosis was preoperatively established in 12 patients (25%) with a plain chest X-ray or/and computed tomography. The location of rupture was on the left side of the diaphragm in 35 patients (73%), on the right side in 10 (21%), and was bilateral in 3 patients (6%). Traumatic diaphragmatic rupture was repaired with interrupted nonabsorbable sutures or polypropylene mesh (8 patients). Postoperative complications were observed in 18 patients (38%). Overall mortality was observed in 7 patients (15%). The mortality was associated with hemorrhagic shock (P = 0.002), a high injury severity score (P = 0.002), and having additional injuries (P = 0.015). Conclusion. The outcome of the patients is associated with presence of hemorrhagic shock, a high injury severity score, and additional organ injury.
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    Adipose-derived stem cells in the treatment of hepatobiliary diseases and sepsis
    (Baishideng Publishing Group Inc, 2022) Satilmis, Basri; Cicek, Gizem Selen; Cicek, Egemen; Akbulut, Sami; Sahin, Tevfik Tolga; Yilmaz, Sezai
    Determination of the mesenchymal stem cells is one of the greatest and most exciting achievements that tissue engineering and regenerative medicine have achieved. Adipose-derived mesenchymal stem cells (AD-MSC) are easily isolated and cultured for a long time before losing their stem cell characteristics, which are self-renewal and pluripotency. AD-MSC are mesenchymal stem cells that have pluripotent lineage characteristics. They are easily accessible, and the fraction of stem cells in the adipose tissue lysates is highest among all other sources of mesenchymal stem cells. It is also HLA-DR negative and can be transplanted allogenically without the need for immunosuppression. These advantages have popularized its use in many fields including plastic reconstructive surgery. However, in the field of hepatology and liver transplantation, the progress is slower. AD-MSC have the potential to modulate inflammation, ameliorate ischemia-reperfusion injury, and support liver and biliary tract regeneration. These are very important for the treatment of various hepatobiliary diseases. Furthermore, the anti-inflammatory potential of these cells has paramount importance in the treatment of sepsis. We need alternative therapeutic approaches to treat end-stage liver failure. AD-MSC can provide a means of therapy to bridge to definitive therapeutic alternatives such as liver transplantation. Here we propose to review theoretic applications of AD-MSC in the treatment of hepatobiliary diseases and sepsis.
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    Advanced alveolar echinococcosis disease associated with Budd-Chiari syndrome
    (Elsevier Sci Ltd, 2015) Soyer, Vural; Ara, Cengiz; Yaylak, Faik; Sarici, Baris; Ozsoy, Mustafa; Koc, Okay; Yilmaz, Sezai
    INTRODUCTION: Alveolar echinococceal disease of the liver is rare. Echinococcus multilocularis is responsible for the development of the related clinical conditions. Advanced disease may result with serious complications such as end stage liver disease and Budd-Chiari syndrome. PRESENTATION OF CASE: In this presentation, a 28 years-old woman who was a case with advanced alveolar echinococcosis complicated with a Budd-Chiari syndrome and was performed successful living donor liver transplantation, has been demonstrated with clinical and radiological images. DISCUSSION: Initially there may be no clinical evidence of the disease in humans for years. Severity and fatality are the significant characteristics of the natural history. Extension to the surrounding tissues and metastasis of the parasitic mass may be observed. Prevention is essential in disease control. Serologic assay may identify the parasite. However, early diagnosis is rare. Staging is based on radiologic imaging. Some patients with advanced disease may require surgery. Hepatic resection and liver transplantation are accepted procedures in selected patients. CONCLUSION: The importance of early diagnosis to prevent advanced complications such as development of Budd-Chiari syndrome and metastasis has been underlined. (C) 2015 The Authors. Published by Elsevier Ltd. on behalf of Surgical Associates Ltd.
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    Alpha-fetoprotein and albumin inversely relate to each other and to tumor parameters in patients with hepatocellular carcinoma
    (Kare Publ, 2024) Carr, Brian; Guerra, Vito; Ince, Volkan; Isik, Burak; Yilmaz, Sezai
    Background and Aim: Alpha-fetoprotein (AFP), an oncofetal protein and biomarker in hepatocellular carcinoma (HCC), has unclear roles and ac-tions.To evaluate the relationships between AFP, liver function tests, and HCC aggressiveness. Materials and Methods: A retrospective analysis of an HCC patient data-base was conducted to examine the relationships between baseline serum AFP values, liver function tests, and tumor characteristics. Results: Statistically significant positive trends were observed between AFP levels and both AST and bilirubin, along with negative trends between AFP and albumin. Significant correlations were also found between AFP and MTD, multifocality, and PVT. Increases in MTD, multifocality, and PVT were noted even at low AFP levels, indicating both AFP-independent and AFP-dependent processes. However, these parameter changes were minimal compared to the substantial changes in AFP levels. Relationships between AFP-related liver and tumor characteristics were found to be sim-ilar but inverse to those for albumin, with normal albumin levels associated with more favorable tumor characteristics. Additionally, serum levels of albumin and AFP were inversely related. Conclusion: AFP and albumin levels significantly, but inversely, correlate with tumor parameters, suggesting that albumin may suppress HCC func-tions and could serve as a potential prognostic marker.
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    Analysis of magnetic resonance imaging findings of children with neurologic complications after liver transplantation
    (Springer-Verlag Italia Srl, 2017) Ozturk, Mehmet; Akdulum, Ismail; Dag, Nurullah; Sigirci, Ahmet; Gungor, Serdal; Yilmaz, Sezai
    Objective To analyze the magnetic resonance imaging findings in children diagnosed with neurologic complications after liver transplantation (LT). Materials and methods A total of 39 patients diagnosed with neurologic complications following LT between 2010 and 2016. Neuroradiologic imaging was performed using cranial magnetic resonance imaging (MRI). Descriptive statistics regarding age, gender, type of complication, diagnostic and therapeutic modalities were calculated and presented as number and percentage. Results Our series consisted of 18 girls and 21 boys. Cryptogenic hepatitis (n = 13, 32%), metabolic diseases (Wilson's disease, tyrosinemia and glycogen storage disease) (n = 7, 18%) and fulminant toxic hepatitis (n = 4, 11%) constitute the most frequent indications for LT. The indications for neuroradiological imaging were convulsion and alteration of mental status. Conclusion These central nervous system complications may present in a variable spectrum and convulsions and altered mental state were the most frequent clinical pictures. Imaging studies were normal in approximately one-third of cases; the most frequent pathologic findings were diffuse cerebral edema, atrophy, and PRES. Clinical history, careful examination and integrated analysis of radiologic data as well as close collaboration and multidisciplinary approach are of utmost importance for establishing the diagnosis rapidly and accurately.
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    Analysis of magnetic resonance imaging findings of children with neurologic complications after livertransplantation
    (Sprınger-verlag ıtalıa srl, vıa decembrıo, 28, mılan, 20137, ıtaly, 2017) Ozturk, Mehmet; Akdulum, Ismail; Dag, Nurullah; Sigirci, Ahmet; Gungor, Serdal; Yilmaz, Sezai
    Objective To analyze the magnetic resonance imaging findings in children diagnosed with neurologic complications after liver transplantation (LT). Materials and methods A total of 39 patients diagnosed with neurologic complications following LT between 2010 and 2016. Neuroradiologic imaging was performed using cranial magnetic resonance imaging (MRI). Descriptive statistics regarding age, gender, type of complication, diagnostic and therapeutic modalities were calculated and presented as number and percentage. Results Our series consisted of 18 girls and 21 boys. Cryptogenic hepatitis (n = 13, 32%), metabolic diseases (Wilson's disease, tyrosinemia and glycogen storage disease) (n = 7, 18%) and fulminant toxic hepatitis (n = 4, 11%) constitute the most frequent indications for LT. The indications for neuroradiological imaging were convulsion and alteration of mental status. Conclusion These central nervous system complications may present in a variable spectrum and convulsions and altered mental state were the most frequent clinical pictures. Imaging studies were normal in approximately one-third of cases; the most frequent pathologic findings were diffuse cerebral edema, atrophy, and PRES. Clinical history, careful examination and integrated analysis of radiologic data as well as close collaboration and multidisciplinary approach are of utmost importance for establishing the diagnosis rapidly and accurately.
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    Analysis of Risk Factors Affecting the Development of Infection in Artificial Vascular Grafts Used for Reconstruction of Middle Hepatic Vein Tributaries in Living Donor Liver Transplantation
    (Lippincott Williams & Wilkins, 2019) Koc, Cemalettin; Akbulut, Sami; Ozdemir, Fatih; Kose, Adem; Isik, Burak; Yologlu, Saim; Yilmaz, Sezai
    Background. To analyze the risk factors affecting the development of infection in artificial vascular grafts (AVGs) used for reconstruction of middle hepatic vein (MHV) tributaries in living donor liver transplantation (LDLT). Methods. Between January 2009 and January 2018, 1253 right lobe LDLTs were performed at our Transplant Institute, and MHV tributaries of the 640 right lobe liver grafts were reconstructed with AVG. Reconstructed MHV tributaries were removed due to AVG infection in 25 of these patients (case group; n = 25). To determine risk factors for AVG infection, right lobe LDLT patients without AVG infections were selected as control group (n = 615). Both groups were compared about demographic parameter, transcystic catheter usage, bile leakage, type of biliary anastomosis (duct-to-duct, telescopic duct-to-duct), number of graft biliary duct (=1 versus >1), number of biliary anastomosis (=1 versus >1), AVG thrombosis, AVG types (Dacron versus polytetrafluoroethylene). Univariate analyses were used for comparison of different variables, and variables with P <= 0.20 were taken into logistic regression model. Results. Univariate analysis shows that statistically significant differences were found between groups regarding bile leakage (P < 0.001), graft thrombosis (P = 0.002), transcystic catheter (P = 0.049), and AVG types (P = 0.013). Variables with P <= 0.20 were taken into logistic regression model. Multivariate analysis shows that bile leakage (odds ratio, 13.3) and AVG thrombosis (odds ratio, 9.8) were determined as independent and strong risk factors for development of AVG infection. Conclusions. This study revealed that bile leakage and graft thrombosis are independent and strong risk factors for infections of AVGs used for anterior sector drainage reconstruction.
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    Anesthesia Care for Children With Fulminant Liver Failure: Report of Our Experience.
    (Wiley-Blackwell, 2014) Sahin, Taylan; Koca, Erdinc; Ince, Volkan; Ucar, Muharrem; Toprak, Huseyin Ilksen; Yilmaz, Sezai
    [Abstract Not Available]
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    Antithrombin Prevents Apoptosis by Regulating Inflammation in the Liver in a Model of Cold Ischemia/Warm Reperfusion Injury
    (H G E Update Medical Publishing S A, 2012) Isik, Sevil; Tuncyurek, Pars; Zengin, Neslihan Inci; Demirbag, Ali Eba; Atalay, Fuat; Yilmaz, Sezai; Orug, Taner
    Background/Aims: Hepatic ischemia-reperfusion injury is a major problem in liver surgery. To modulate the complex process of inflammation, additional drugs to add to well-defined organ preserving solutions have been sought. The aim of the current study was: to investigate the additive potential of antithrombin (AT) in liver preservation. Methodology: Female Wistar rats were randomized into four groups: sham (Group I), experiment model (Group II), and treatment groups with AT (250U/kg) administration systematically (Group III) or locally (Group IV) before hepatectomy. UW solution was used for liver preservation for 24h at 4 degrees C. The livers in group II, III and IV were reperfused 1h and histopathological parameters were evaluated microscopically. Apoptosis was assessed with TUNEL test. Results: Karyorrhexis was lower in the local treatment with AT group. Sinusoidal desquamation and mononuclear cell infiltration was higher in the experimental model group. Sinusoidal enlargement was higher in the systemic AT treatment group and neutrophil infiltration to sinusoids was lowest in the local treatment group. Apoptosis of hepatocytes and sinusoidal cells were significantly suppressed in rats that were treated with AT via portal vein infusion. Conclusions: AT treatment obviously contributed to liver preservation in our model; the effects on apoptosis and inflammation were prominent. Therefore, AT should be considered as a potent agent although its clinical role has yet to be defined in ex-vivo hepatic preservation.
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    Appendiceal Enterobius vermicularis infestation in adults
    (Int College Of Surgeons, 2007) Isik, Burak; Yilmaz, Mehmet; Karadag, Nese; Kahraman, Latif; Sogutlu, Gokhan; Yilmaz, Sezai; Kirimlioglu, Vedat
    The objective of this study is to evaluate the incidence of Enterobius vermicularis in the appendices of the adult population and a possible relationship between E. vermicularis and acute appendicitis. E. vermicularis was identified in 18 (2%) of 890 patients. Six hundred sixty-five operations were performed for presumptive diagnosis of acute appendicitis, and E. vermicularis was found in 12 (2%) patients. The histopathological examination revealed acute inflammatory cells in four cases (33%). Three of these four specimens included luminal ova and one E. vermicularis. Histopathological examination of six cases revealed E. vermicularis in 225 incidental appendectomies with no evidence of either acute or chronic inflammatory cells. This study suggests a relationship between the presence of E. vermicularis ova and acute inflammation, but the presence of the pinworm in the lumen of the appendix is coincidental. On the other hand E. vermicularis in the appendix lumen can cause symptoms of acute appendicitis.
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    The Assessment of Hepatosteatosis in Living-Donor Liver Transplant: Comparison of Liver Attenuation Index and Histopathologic Results
    (Baskent Univ, 2017) Kahraman, Aysegul Sagir; Karakas, Hakki Muammer; Kirimlioglu, Hale; Kahraman, Bayram; Yilmaz, Sezai; Kirimlioglu, Vedat
    Objectives: The purpose of the study was to determine the diagnostic value of computed tomography densitometry in the quantification of hepatosteatosis. Materials and Methods: Fifty-one potential liver donors, ranging in age from 19 to 52 years (mean age: 32.4 years +/- 10.2), participated in the study. The mean hepatic attenuation and mean splenic attenuation were determined using regions of interest measurements. The difference between the mean hepatic attenuation and mean splenic attenuation (or liver attenuation index), with liver attenuation index = mean hepatic attenuation - mean splenic attenuation were calcu lated. Computed tomography densitometric para meters were correlated with histopathologic results. Results: From the histopathologic analysis, the degree of macrovesicular hepatosteatosis was 0% to 8% (mean: 1.1% +/- 2%). Seven donors (13.7%) had a degree of macrovesicular steatosis of > 5%, and 12 donors (23.5%) had >= 2%. Of the 29 normal donors with histopathologic verification, computed tomography densitometry predicted <= 5% of the hepa to steatosis in 27 donors, and >= 2% hepato-steatosis in 2 subjects. The liver attenuation index was sig nificantly correlated to the histopathologic results. The mathematical relation between liver attenuation index and the degree of histopathologic hepatosteatosis was calculated using the least-squares methods, which provided quadratic polynomials. Conclusions: Computed tomography densitometry is a rapid, robust, noninvasive technique for the assessment of hepatosteatosis. When used in conjunction with clinically stable reference measurements of spleen, the density measurements of liver correctly predicted the presence of fatty infiltration with significant sensitivity (77%) and specificity (75%). This technique, which was refined during the course of our liver transplant program, minimizes the need for highly invasive percutaneous liver biopsies.
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    Assessment of Knowledge and Attitudes Toward Organ Donation Among School Teachers: First National Survey Study
    (Elsevier Science Inc, 2022) Akbulut, Sami; Ozer, Ali; Firinci, Betul; Demyati, Khaled; Saritas, Hasan; Yilmaz, Sezai
    Background and aim. The most important factors affecting organ donation are socioeconomic, educational, and cultural factors. The aim of this study was to evaluate the attitudes, knowledge levels, and behaviors of school teachers toward organ donation Methods. This study surveyed 2400 school teachers working in official public schools. Turkey was divided into 26 regions based on the similarity of social, economic, and geographic factors identified by the Turkish Statistical Institute. Teachers were distributed equally in the city center and towns based on population. The survey procedures were carried out using computer-assisted personal interviewing. Results. Among teachers, 89.6% had a bachelor's degree and 8.5% had a master's degree. In addition, 32.5% worked in primary schools, 33.1% worked in secondary schools, and 34.4% worked in high schools. Furthermore, 0.7% had donated an organ; 66.5% were not considering organ donation in the future, of whom 9.0% indicated religion as the reason for not donating an organ, and 34.8% did not indicate any reason. In addition, 96.6% considered organ donation to be proper behavior for humanity and 68% believed that organ donation is appropriate in religious terms. Conclusions. This study showed that school teachers have inadequate knowledge and attitudes toward organ donation. Encouraging children and adolescents to make a well-informed decision about organ donation and to register this choice will depend largely on preparing school teachers with adequate knowledge and motivation toward creating generations with a positive attitude toward organ donation.