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Oran EŞ, Gürdal SÖ, Yankol Y, Öznur M, Calay Z, Tunacı M, Soybir GR. Management of idiopathic granulomatous mastitis diagnosed by core biopsy: a retrospective multicenter study. Breast J 2013; 19:411-8. [PMID: 23663101 DOI: 10.1111/tbj.12123] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] [Imported: 02/11/2025]
Abstract
Idiopathic granulomatous mastitis (IGM) is a rare, benign, chronic inflammatory condition of the breast, which usually mimics breast carcinoma. The aim of this study was to analyze the clinical features of IGM by identifying a more reliable diagnostic protocol, and evaluating the treatment methods and patient outcomes on follow-up. We performed a retrospective analysis of 46 patients diagnosed with IGM and managed by the same surgical team between 1999 and 2011, at three high-volume hospitals. The median age of the patients was 33 years. The most common symptom was painful breast mass (n = 39), followed by abscess (n = 11). All patients underwent ultrasonography (USG). Mammography (MG) and magnetic resonance imaging (MRI) were also performed in 20 patients (43%) and 17 patients (37%), respectively. The mean size of the lesions was 32.8 ± 8.8 mm and ranged from 15 to 50 mm. Preoperative diagnosis of IGM was established by core needle biopsy (CNB) under USG guidance. Eighteen patients (39%) underwent complete excision of the lesion and 25 (54%) were treated with steroids. Three patients treated with steroids subsequently underwent local excision. The mean follow-up period was 35.4 ± 30.9 months. Eight patients (17%) developed disease recurrence; three of these were successfully treated with steroids, one with surgery, and four with both steroids and surgery. CNB in conjunction with high diagnostic accuracy has a significant role in distinctive diagnosis of IGM and hence, is useful for treatment planning. Treatment can be designated according to the extent and the severity of the disease, and the patient's general health and treatment preferences. Patients with IGM must be closely followed up due to the frequency of disease recurrence.
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Multicenter Study |
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Gürdal SÖ, Saraçoğlu GV, Oran EŞ, Yankol Y, Soybir GR. The effects of educational level on breast cancer awareness: a cross-sectional study in Turkey. Asian Pac J Cancer Prev 2012; 13:295-300. [PMID: 22502688 DOI: 10.7314/apjcp.2012.13.1.295] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2025] [Imported: 02/11/2025] Open
Abstract
Breast self-examination (BSE) is important for early diagnosis of breast cancer (BC). However, the majority of Turkish women do not perform regular BSE. We aimed to evaluate the effects of education level on the attitudes and behaviors of women towards BSE. A descriptive cross-sectional study was conducted on 413 women (20-59 years), divided into university graduates (Group I, n = 224) and high school or lower graduates (Group II, n = 189). They completed a 22-item scale assessing the knowledge level, attitudes and behaviors regarding BSE, and the Turkish version of the Champion's Revised Health Belief Model. A significantly higher number of women in Group II did not believe in early diagnosis of BC. A significantly higher number of Group I had conducted BSE at least once, and their BSE frequency was also significantly high. Moreover, a significantly lower number of Group I women considered themselves to not be at risk for BC and the scores for "perceived susceptibility" and "perceived barriers" were significantly higher. Logistic regression analysis identified the university graduate group to have a higher likelihood of performing BSE, by 1.8 times. Higher educational levels were positively associated with BSE performance. Overall, the results suggest that Turkish women, regardless of their education level, need better education on BSE. Consideration of the education level in women will help clinicians develop more effective educational programs, resulting in more regular practice and better use of BSE.
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Yankol Y, Fernandez LA, Kanmaz T, Leverson GE, Mezrich JD, Foley D, Mecit N, D'Alessandro AM, Acarli K, Kalayoglu M. Results of pediatric living donor compared to deceased donor liver transplantation in the PELD/MELD era: Experience from two centers on two different continents. Pediatr Transplant 2016; 20:72-82. [PMID: 26861217 DOI: 10.1111/petr.12641] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2015] [Indexed: 12/14/2022] [Imported: 02/11/2025]
Abstract
The LDLT option in the pediatric population allows recipients to be transplanted early. A total of 202 consecutive pediatric liver transplants from two different institutions--108 (LDLT) and 94 (DDLT)--were retrospectively compared. Overall, one- and three-yr patient and graft survival were similar between DDLT and LDLT. ACR was greater in recipients of DDLT at one and three yr (50.8% and 61.0%) compared to LDLT (30.8% and 32.2%) (p = 0.002). When the data were stratified according to PELD/MELD score, LDLT with a low score had better one- and three-yr graft survival (96.2% and 96.2%) compared to DDLT (88.2% and 85.2%) (p = 0.02), with comparable patient survival (p = 0.75). Patient and graft survival were similar between DDLT and LDLT in the high PELD/MELD group. Lower incidence of ACR in both low and high PELD/MELD groups was (29.6% and 34.3%) for LDLT compared to DDLT (50.3% and 53.3%, p = 0.002 and p = 0.028, respectively). Regardless of PELD/MELD score, status, age group, and recipient weight, LDLT provides excellent patient and graft survival with a lower incidence of rejection compared to DDLT.
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Comparative Study |
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Eerhart MJ, Reyes JA, Blanton CL, Danobeitia JS, Chlebeck PJ, Zitur LJ, Springer M, Polyak E, Coonen J, Capuano S, D’Alessandro AM, Torrealba J, van Amersfoort E, Ponstein Y, Van Kooten C, Burlingham W, Sullivan J, Pozniak M, Zhong W, Yankol Y, Fernandez LA. Complement Blockade in Recipients Prevents Delayed Graft Function and Delays Antibody-mediated Rejection in a Nonhuman Primate Model of Kidney Transplantation. Transplantation 2022; 106:60-71. [PMID: 34905763 PMCID: PMC8674492 DOI: 10.1097/tp.0000000000003754] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] [Imported: 02/11/2025]
Abstract
BACKGROUND Complement activation in kidney transplantation is implicated in the pathogenesis of delayed graft function (DGF). This study evaluated the therapeutic efficacy of high-dose recombinant human C1 esterase inhibitor (rhC1INH) to prevent DGF in a nonhuman primate model of kidney transplantation after brain death and prolonged cold ischemia. METHODS Brain death donors underwent 20 h of conventional management. Procured kidneys were stored on ice for 44-48 h, then transplanted into ABO-compatible major histocompatibility complex-mismatched recipients. Recipients were treated with vehicle (n = 5) or rhC1INH 500 U/kg plus heparin 40 U/kg (n = 8) before reperfusion, 12 h, and 24 h posttransplant. Recipients were followed up for 120 d. RESULTS Of vehicle-treated recipients, 80% (4 of 5) developed DGF versus 12.5% (1 of 8) rhC1INH-treated recipients (P = 0.015). rhC1INH-treated recipients had faster creatinine recovery, superior urinary output, and reduced urinary neutrophil gelatinase-associated lipocalin and tissue inhibitor of metalloproteinases 2-insulin-like growth factor-binding protein 7 throughout the first week, indicating reduced allograft injury. Treated recipients presented lower postreperfusion plasma interleukin (IL)-6, IL-8, tumor necrosis factor-alpha, and IL-18, lower day 4 monocyte chemoattractant protein 1, and trended toward lower C5. Treated recipients exhibited less C3b/C5b-9 deposition on day 7 biopsies. rhC1INH-treated animals also trended toward prolonged mediated rejection-free survival. CONCLUSIONS Our results recommend high-dose C1INH complement blockade in transplant recipients as an effective strategy to reduce kidney injury and inflammation, prevent DGF, delay antibody-mediated rejection development, and improve transplant outcomes.
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Research Support, N.I.H., Extramural |
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Kanmaz T, Yankol Y, Mecit N, Durmaz Ö, Acarli K, Kalayoğlu M. Pediatric Liver Transplant: A Single-center Study of 100 Consecutive Patients. EXP CLIN TRANSPLANT 2014; 12:41-5. [PMID: 24471723 DOI: 10.6002/ect.2013.0016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 02/11/2025]
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Danobeitia JS, Zens TJ, Chlebeck PJ, Zitur LJ, Reyes JA, Eerhart MJ, Coonen J, Capuano S, D’Alessandro AM, Torrealba JR, Burguete D, Brunner K, Amersfoort E, Ponstein-Simarro Doorten Y, Van Kooten C, Jankowska-Gan E, Burlingham W, Sullivan J, Djamali A, Pozniak M, Yankol Y, Fernandez LA. Targeted donor complement blockade after brain death prevents delayed graft function in a nonhuman primate model of kidney transplantation. Am J Transplant 2020; 20:1513-1526. [PMID: 31922336 PMCID: PMC7261643 DOI: 10.1111/ajt.15777] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/05/2019] [Accepted: 12/22/2019] [Indexed: 01/25/2023] [Imported: 02/11/2025]
Abstract
Delayed graft function (DGF) in renal transplant is associated with reduced graft survival and increased immunogenicity. The complement-driven inflammatory response after brain death (BD) and posttransplant reperfusion injury play significant roles in the pathogenesis of DGF. In a nonhuman primate model, we tested complement-blockade in BD donors to prevent DGF and improve graft survival. BD donors were maintained for 20 hours; kidneys were procured and stored at 4°C for 43-48 hours prior to implantation into ABO-compatible, nonsensitized, MHC-mismatched recipients. Animals were divided into 3 donor-treatment groups: G1 - vehicle, G2 - rhC1INH+heparin, and G3 - heparin. G2 donors showed significant reduction in classical complement pathway activation and decreased levels of tumor necrosis factor α and monocyte chemoattractant protein 1. DGF was diagnosed in 4/6 (67%) G1 recipients, 3/3 (100%) G3 recipients, and 0/6 (0%) G2 recipients (P = .008). In addition, G2 recipients showed superior renal function, reduced sC5b-9, and reduced urinary neutrophil gelatinase-associated lipocalin in the first week posttransplant. We observed no differences in incidence or severity of graft rejection between groups. Collectively, the data indicate that donor-management targeting complement activation prevents the development of DGF. Our results suggest a pivotal role for complement activation in BD-induced renal injury and postulate complement blockade as a promising strategy for the prevention of DGF after transplantation.
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Unal E, Yankol Y, Sanal T, Haholu A, Buyukdogan V, Ozdemir Y. Laparoscopic resection of a torsioned appendix epiploica in a previously appendectomized patient. Surg Laparosc Endosc Percutan Tech 2006; 15:371-3. [PMID: 16340573 DOI: 10.1097/01.sle.0000191622.25016.f3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] [Imported: 02/11/2025]
Abstract
Torsion of the appendices epiploicae is a rare condition that may present with acute abdominal pain and mimics appendicitis. We report a 20-year-old previously appendectomized man presenting with right lower abdominal quadrant pain. Abdominal ultrasonography showed a localized omental thickening in the right paracolic region. Contrast-enhanced computed tomography revealed well-circumscribed fatty tissue adjacent to the cecum with heterogeneous hyperdense infiltration of the mesentery near the sigmoid colon. Diagnostic laparoscopy revealed 2-cm diameter torsioned and edematous fatty tissue floating on the omentum in the right lower quadrant. The torsioned mass was elevated, and a thick stalk was seen to be connecting the fatty tissue to the sigmoid colon. At this point, the torsioned fatty tissue was considered as a sigmoidal appendix epiploica that was elongated and neighboring on the previously operated-on region. The lesion was removed by laparoscopic means using 3 ports. Grossly, fat necrosis and internal bleeding were seen. Histopathologic analysis of the resected tissue demonstrated adipose tissue surrounded by fibrotic inflammatory changes with marked infiltration of numerous lymphocytes and histiocytes. In conclusion, torsion of appendices epiploicae should be included in the differential diagnosis of acute abdomen when evaluating patients with right lower quadrant pain and a history of appendectomy. Laparoscopic surgery provides definite diagnosis and prevents unnecessary open procedures for such lesions leading to peritoneal irritation.
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Köksoy FN, Yankol Y, Şen Oran E, Őzkan Gūrdal S, Yūksel M, Akyildiz Iğdem A, Yildirim Yazgan N, Soybir GR. Preventive effects of enoxaparin and hesperidin in cerulein-induced acute pancreatitis in rats. THE TURKISH JOURNAL OF GASTROENTEROLOGY : THE OFFICIAL JOURNAL OF TURKISH SOCIETY OF GASTROENTEROLOGY 2013; 24:495-501. [PMID: 24623288 DOI: 10.4318/tjg.2013.0585] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2025] [Imported: 02/11/2025]
Abstract
BACKGROUND/AIMS Acute pancreatitis accounts for almost 250.000 hospital admissions annually in the United States. Most promising treatment approaches are preventive; however, little is known about the early factors initiating acute pancreatitis. We aimed to evaluate the preventive effects of enoxaparin and hesperidin in cerulein-induced acute pancreatitis. PATIENTS AND METHODS We used 70 Wistar albino rats for this study. Rats were divided into 7 groups: control group, and groups that were administered cerulein(Group 2), enoxaparin (Group 3), hesperidin (Group 4), cerulein with enoxaparin (Group 5), cerulein with hesperidin (Group 6), and cerulein with both enoxaparin and hesperidin (Group 7). Edema formation; leukocyte infiltration; measurement of the amylase level, pancreatic tissue weight, and pancreatic tissue oxidative capacity; and chemiluminescence using luminol, lucigenin, and nitric oxide levels as indices of tissue oxidative capacity were used to evaluate pancreatitis. RESULTS Acute edematous mild pancreatitis was induced in groups 2, 5, and 6 by cerulein injections. Enoxaparin and hesperidin significantly decreased (p < 0.001) all the tested parameters in these rats. Enoxaparin and hesperidin did not offer complete protection but showed 50% decrease in edema formation. The preventive agents showed no superiority to each other. Further, when enoxaparin and hesperidin were used in combination, no significant additive effects with regard to anti-inflammatory and anti-oxidative actions were present. CONCLUSION We showed that both enoxaparin and hesperidin exerted significant preventive effects in all the parameters related to acute pancreatitis in our experimental rat model.
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Yankol Y, Mecit N, Kanmaz T, Acarli K, Kalayoglu M. A very original case of a mini accessory liver lobe with its own gallbladder. Surg Radiol Anat 2014; 37:535-8. [PMID: 25288275 DOI: 10.1007/s00276-014-1380-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 09/29/2014] [Indexed: 01/03/2023] [Imported: 08/29/2023]
Abstract
PURPOSE Anatomic variation of the hepatobiliary system is often related to the biliary tract and vascular supply of the liver. We present here one of the smallest accessory hepatobiliary system. METHODS The case of a 30-year-old male who was a living liver donor is presented. RESULTS During the dissection of the portal hilum, 1.5 cm of accessory liver (AL) tissue was noted below the left lobe of the liver. This AL tissue had a gallbladder of 1.5 cm and which had a cystic duct opening to the bile duct of the accessory liver. The AL bile duct opened to the left bile duct of the liver. The arterial and portal supply of the AL came from the left artery and left portal vein of the liver. The accessory gallbladder also had a cystic artery coming from the arterial branch of the AL. It was noted that the hepatic vein of the AL opened directly to left lobe tissue. CONCLUSIONS The hepatobiliary system has many anatomic variations, but this case is rare and original in the literature in that it may be a cause of confusion and even a false diagnosis.
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Yankol Y, Mecit N, Kanmaz T, Kalayoğlu M, Acarlı K. Complications and outcomes of 890 living liver donor hepatectomies at a single center: risks of saving loved one's life. Turk J Surg 2020; 36:192-201. [PMID: 33015564 DOI: 10.5578/turkjsurg.4548] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 11/27/2019] [Indexed: 12/13/2022] [Imported: 08/29/2023]
Abstract
Objectives Living liver donor surgery is a major surgical procedure applied to healthy people with mortality and morbidity risks and does not provide any direct therapeutic advantage to the donor. We retrospectively analyzed the postoperative complication of our living liver donors to figure out the risks of donation. Material and Methods Between November, 2006 and December, 2018, a total of 939 living liver donor hepatectomies were performed with no mortality to the living-related donors. Eight hundred and ninety donors with a minimum 1-year follow-up were analyzed retrospectively. Results Of the 890 donors, 519 (58.3%) were males and 371 (41.7%) were females. Mean age was 35 years (18-64) and mean body mass index was 25.7 kg/m2 (17.7-40). Right donor hepatectomy was performed to 601 (67.5%), left donor hepatectomy to 28 (3.2%) and left lateral sector hepatectomy to 261 (29.3%) of the donors. Of the 890 donors, 174 (19.5%) donors experienced a total of 204 early and late complications including life- threatening and nearly life- threatening complications in 26 (2.9%) of them. Intraoperative complication occurred in 4 (0.5%) donors. Right donors hepatectomy complication rate (23.3%) was higher than left donor (14.3%) and left lateral sector donor hepatectomy (11.5%). Conclusion All donor candidates should be well-informed not only on the details of early and late complications of living liver donation, also possible outcomes of the recipient. In addition to detailed physical evaluation, preoperative psychosocial evaluation is also mandatory. Comprehensive donor evaluation, surgical experience, surgical technique, close postoperative follow-up and establishing a good dialog with the donor allows better outcomes.
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Oran ES, Yankol Y, Soybir GR, Karsidag T, Sakalli O, Gecgel U, Soybir OC, Soran A. Distinct postsurgical management in young and elderly breast cancer patients results in equal survival rates. Asian Pac J Cancer Prev 2015; 15:7843-7. [PMID: 25292075 DOI: 10.7314/apjcp.2014.15.18.7843] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] [Imported: 02/11/2025] Open
Abstract
BACKGROUND Although breast cancer (BC) is one of the most common malignant diseases in women, the majority of the studies describing the characteristics of BC in elderly patients have been limited to survival assessments or tumor features, without using younger BC patients as a reference group. The aim of our study was to describe and compare tumor characteristics and management patterns in elderly versus younger breast cancer patients in Turkey. MATERIALS AND METHODS We retrospectively analyzed 152 patients with invasive breast cancer who underwent surgery in our institution between 2002 and 2012. Patients were divided into 2 groups according to age at the time of diagnosis. RESULTS There were 62 patients in the elderly group (≥65 years) and 90 patients in the younger group (<65 years). Compared to the younger group, tumors in the elderly group were more likely to be larger (p=0.018), of lower grade (p=0.005), and hormone receptor-positive (p>0.001). There were no significant differences regarding histology, localization, lymph node involvement, or types of surgical procedures between the 2 groups. Comorbidities were more common in elderly patients (p<0.001). In addition, elderly patients were more likely to receive hormonal therapy (p<0.001) and less likely to receive radiotherapy (p=0.08) and chemotherapy (p=0.003). There was no difference in survival and locoregional recurrence rates between the groups. CONCLUSIONS The results of this study demonstrate that breast cancer in elderly patients has more favorable tumor features, warranting less aggressive treatment regimens after surgery.
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Liver Transplantation: Recipients' Evaluation of Life From the Perspective of Living Donors. Transplant Proc 2016; 48:107-10. [PMID: 26915852 DOI: 10.1016/j.transproceed.2015.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 10/10/2015] [Accepted: 11/18/2015] [Indexed: 11/23/2022] [Imported: 02/11/2025]
Abstract
AIM Liver transplantation affects not only recipients and living donors' lives, but also the nature and quality of their relationship. Moreover, the ways in which recipients of liver transplant experience life and views of living donors on how recipients experience life may differ. These differences may account for relational changes. It is also important to understand how recipients and their living donors' views differ if the aim is to devise psychoeducational programs for recipients and living donors. Therefore, the present study examined the recipients' experience of life after a diagnosis of end-stage liver failure (ESLF) and transplantation surgery from donors' perspective. METHODS The sample consisted of 16 living donors who donated a part of their liver to a patient with ESLF. Thematic analysis was undertaken in parallel with interviews during which an interview guide was followed. FINDINGS Donors felt that recipients evaluated life after the diagnosis of ESLF and transplantation surgery in terms of limitations, mixed relationships, emotional changes, and improvement in life. CONCLUSION Experience of social limitations, negative emotions, and the feeling that one is supported by others could be interpreted in terms of existing psychological theory. Some ways of adjusting that have not been reported before within the context of ESLF extended the literature. These included others being frightened of being infected by ESLF and being insensitive, experience of positive emotions, and ways of improving. Overall, compared with findings of previous qualitative work among recipients, our findings suggest that donors' evaluation of recipients' lives converge with that of recipients.
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Doğrul AB, Yankol Y, Mecit N, Kanmaz T, Acarlı K, Kalayoğlu M. Orthotopic Liver Transplant for Budd-Chiari Syndrome: An Analysis of 14 Cases. EXP CLIN TRANSPLANT 2015; 14:641-645. [PMID: 26669436 DOI: 10.6002/ect.2015.0026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] [Imported: 02/11/2025]
Abstract
OBJECTIVES Budd-Chiari syndrome is a low-prevalence, life-threatening disorder characterized by hepatic venous outflow obstruction at the hepatic venules, the large hepatic veins, the inferior vena cava, or the right atrium. Orthotopic liver transplant should be considered for patients with fulminant and chronic forms of the syndrome. MATERIALS AND METHODS Fourteen patients received 15 orthotropic liver transplants at our center from September 2006 to March 2013. This study retrospectively reviewed the prospectively collected data from these 14 patients. RESULTS The mean age of the patients was 33 years; only 1 patient was female. The severity of liver disease was Child-Pugh score A in 1 patient, B in 4 patients, and C in 9 patients. Mean calculated Model for End-Stage Liver Disease score was 18 (range, 6-30). The cause of Budd-Chiari syndrome was factor 5 Leiden mutation in 3 patients, polycythemia vera in 2 patients, factor 2 and 3 deficiency in 1 patient, fulminant essential thrombocytosis in 1 patient, and protein C deficiency in 2 patients. We performed 15 transplants in 14 patients. Five grafts were obtained from deceased donors, and 10 grafts were from living-related donors. Mean graft-to-recipient weight ratio was 1,12 for patients receiving a living-donor liver transplant. Median follow-up was 29 months. Patient survival rates were 87%, 71%, and 71% at 1, 3, and 5 years. CONCLUSIONS Liver transplant is an option for treating Budd-Chiari syndrome in cases of fulminant presentation and cirrhosis. Living-donor liver transplant is a viable choice in countries where procuring organ donations is still a problem. To manage the long-term medical therapy and follow-up for these patients, a careful evaluation is necessary to determine the cause of Budd-Chiari syndrome. Anticoagulant and antiaggregant therapy remains the mainstay of treatment for this syndrome.
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Yankol Y, Mecit N, Kanmaz T, Acarli K, Kalayoglu M. Argininosuccinic Aciduria-A Rare Indication for Liver Transplant: Report of Two Cases. EXP CLIN TRANSPLANT 2016; 15:581-584. [PMID: 26768012 DOI: 10.6002/ect.2015.0078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 08/29/2023]
Abstract
Argininosuccinic aciduria is a urea cycle disorder caused by an argininosuccinate lyase enzyme deficiency that ends with nitrogen accumulation as ammonia. Argininosuccinic aciduria patients are at risk for long-term complications including poor neurocognitive outcome, hepatic disease, and systemic hypertension despite strict pharmacologic and dietary therapy. As the liver is the principle site of activity of the urea cycle, it is logical that a liver transplant should be an option, with careful patient selection, even in the absence of cirrhosis. We present 2 pediatric argininosuccinic aciduria patients who underwent a living-donor liver transplant from their mothers. After the liver transplant, the general well-being of the patients and their quality of life improved significantly. Liver transplant should be an option for argininosuccinic aciduria patients to prevent further neurologic deterioration and improve the patient's quality of life.
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Okur MH, Yankol Y, Cimşit B, Mecit N, Ertuğrul G, Kanmaz T, Bozkurt C, Acarli K, Kalayoglu M. Liver Transplant in Children with Hepatoblastoma. EXP CLIN TRANSPLANT 2017; 17:644-647. [PMID: 28411361 DOI: 10.6002/ect.2016.0110] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 02/11/2025]
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Krespi MR, Tankurt A, Acarli K, Kanmaz T, Yankol Y, Kalayoglu M. Beliefs of Living Donors About Recipients' End-Stage Liver Failure and Surgery for Organ Donation. Transplant Proc 2017; 49:1369-1375. [PMID: 28736009 DOI: 10.1016/j.transproceed.2017.02.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/26/2017] [Accepted: 02/07/2017] [Indexed: 11/29/2022] [Imported: 02/11/2025]
Abstract
BACKGROUND The concept of beliefs could provide a basis for how donors may perceive recipients' end-stage liver failure (ESLF) and surgery for organ donation. However, there is no such quantitative study. Therefore, the objective of this study was to explore beliefs of living donors about recipients' ESLF and surgery for organ donation. METHODS The sample comprised 16 living donors who donated a part of their liver to a patient who had ESLF. The data were analyzed by following established procedures for inductive qualitative analysis. RESULTS Analysis showed that donors' beliefs can be viewed in a number of groups. Beliefs about recipients' ESLF included diverse explanations for ESLF (blaming oneself and physicians) and physical symptoms (developmental slowing down). Beliefs about being a donor included reasons for being a donor (performing a good deed, being healed), barriers to being a donor (other people being ignorant and selfish), ways to manage these barriers (following one's gut feeling), and factors facilitating being a donor (the feeling that one does not have many people to leave behind). Beliefs about surgery for organ donation included physical effects (pain, feeling stiff). Beliefs about organ donation included views that general organ donation should be encouraged and that people's awareness should be raised. CONCLUSIONS Existing psychological perspectives could help to interpret some beliefs. Nevertheless, other beliefs, not previously reported, could be considered as targets for individual consultations/psycho-educational programs for fostering emotional well-being.
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Acquired factor XI deficiency: a rare complication after liver transplantation. Transplant Proc 2015; 47:179-81. [PMID: 25596963 DOI: 10.1016/j.transproceed.2014.10.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 10/28/2014] [Indexed: 11/21/2022] [Imported: 08/29/2023]
Abstract
BACKGROUND A majority of coagulation factors are synthesized in the liver. Factor XI (FXI) deficiency (Rosenthal syndrome) is one of the rare inherited coagulation disorders with an extremely low risk of transmission by liver transplantation (LT). CASE REPORT We report here the case of a 50-year-old man who unknowingly acquired FXI deficiency by LT. During 1 year of post-transplant follow-up, his activated partial thromboplastin time (aPTT) remained prolonged, but he did not develop bleeding complications. The patient required retransplantation due to chronic rejection and is currently doing well 4 years after his first liver transplantation. CONCLUSIONS The presence of a prolonged aPTT in a deceased donor should raise suspicion for the presence of rare coagulation factor deficiencies. During urgent, lifesaving procedures such as LT, it may be impossible to avoid transmission. Awareness of this possibility will allow early detection and management.
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Yankol Y, Mecit N, Kanmaz T, Acarli K, Kalayoglu M. Living Donor Liver Transplantation: A Life-Saving Option in Emergency Situations for Diffuse Hepatic Neuroendocrine Tumor Metastasis. Transplant Proc 2015; 47:427-30. [PMID: 25769585 DOI: 10.1016/j.transproceed.2014.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 12/31/2014] [Indexed: 01/24/2023] [Imported: 08/29/2023]
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Sen-Oran E, Yankol Y, Tuzun B, Kocak B, Kanmaz T, Acarli K, Kalayoglu M. Cadaveric Liver Transplantation in Biliary Atresia Splenic Malformation Syndrome With the Absence of Retrohepatic Inferior Vena Cava, Preduodenal Portal Vein, and Intestinal Malrotation: A Case Report. Transplant Proc 2008; 40:313-5. [PMID: 18261615 DOI: 10.1016/j.transproceed.2007.11.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] [Imported: 02/11/2025]
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Yankol Y, Mecit N, Kanmaz T, Acarlı K. Leiomyosarcoma of the retrohepatic vena cava: Report of a case treated with resection and reconstruction with polytetrafluoroethylene vascular graft. ULUSAL CERRAHI DERGISI 2015; 31:162-5. [PMID: 26504421 DOI: 10.5152/ucd.2015.2882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 09/10/2014] [Indexed: 11/22/2022] [Imported: 08/29/2023]
Abstract
Leiomyosarcoma of the vena cava is a rare malignant tumor. A 61-year-old woman was admitted with right upper quadrant abdominal pain. Computed tomography revealed a retrohepatic vena cava tumor originating 2 cm below the confluence of the hepaic veins and ending 2 cm above the renal veins. The tumor was resected with 1 cm clear surgical margins, without requiring liver resection. Polytetrafluoroethylene vascular graft was used for reconstruction of the vena cava. Now 32 months postoperatively, there has been no recurrence or metastasis. Radical resection with negative surgical margins is the best curative therapy for leiomyosarcoma. Polytetrafluoroethylene vascular graft can be used in extensive tumors located at the vena cava.
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Yankol Y, Ertugrul M, Kanmaz T, Mecit N, Ocak I, Durmaz O, Acarli K, Kalayoglu M. Management of Pediatric Acute Liver Failure in a Region With Insufficient Deceased Donor Support: A Single-Center Experience. EXP CLIN TRANSPLANT 2016; 14:535-541. [PMID: 26975186 DOI: 10.6002/ect.2015.0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 08/29/2023]
Abstract
OBJECTIVES Acute liver failure is a rapidly progressive and life-threatening disease in children, whose clinical features differ from those of adults. MATERIALS AND METHODS This is a review of a single center's experience with pediatric acute liver failure in a region with insufficient deceased donor support. The study is a retrospective review and analysis of 22 pediatric patients with acute liver failure between January 2007 and May 2013. RESULTS The cause of acute liver failure was indeterminate in 45.4% of cases. Listing for liver transplant was required in 72.7% of patients, whereas 27.3% developed spontaneous remission. In the patients placed on the liver transplant wait list, 75% underwent liver transplant and 25% died before undergoing liver transplant. The presence of ascites, high-grade encephalopathy, and laboratory findings including high lactate dehydrogenase and phosphorous levels and international normalized ratio were significant parameters in selecting patients needing liver transplants. All liver transplants were from living donors. One- and 3-year patient survival rates after liver transplant were 75% and 75%. No serious donor complications occurred. CONCLUSIONS Living-donor liver transplant may be the only option to save the lives of pediatric patients with acute liver failure, especially in regions with insufficient deceased-donor support. Timely referral to a multidisciplinary transplant center, expedient evaluation of living donors, and appropriate timing of transplant are crucial for a successful outcome.
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Yankol Y, Mecit N, Kanmaz T, Cimsit B, Cakaloglu Y, Acarli K, Kalayoglu M. Lessons Learned From Review of a Single Center Experience With 500 Consecutive Liver Transplants in a Region With Insufficient Deceased-Donor Support. EXP CLIN TRANSPLANT 2015; 14:191-200. [PMID: 26030810 DOI: 10.6002/ect.2014.0170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 08/29/2023]
Abstract
OBJECTIVES We present here the outcomes of our first 500 liver transplants and discuss the lessons learned during this time. MATERIALS AND METHODS We retrospectively analyzed the first 500 consecutive transplants within the listing criteria of the United Network for Organ Sharing, with recipients and donors with minimum 1-year follow-up. Patient survival and donor complications were analyzed for 31 liver transplant recipients with hepatocellular carcinoma beyond the Milan criteria who had transplant performed during the same time. RESULTS Between August 2006 and March 2013, there were 519 liver transplants performed in 500 patients (365 adult, 135 pediatric). There were 394 living-donor and 125 deceased-donor liver transplants. In addition, 31 adult liver transplants were performed in patients with hepatocellular carcinoma beyond Milan criteria (22 living-donor and 9 deceased-donor transplants). The main cause of chronic liver failure was biliary atresia in pediatric patients (30.4%) and chronic hepatitis B infection in adults (35.6%). The complication rate for primary nonfunction was 3.8%, overall biliary complications 24.0% (significantly higher after adult living-donor liver transplant, 30.3%), hepatic artery thrombosis 1.6%, portal vein thrombosis 3.0%, retransplant 3.8%, acute cellular rejection 29.6%, and bacterial infection 39.4%. Overall 1-, 3-, and 5-year patient survival rates in the first 500 consecutive transplants performed on recipients within United Network for Organ Sharing listing criteria were 87.8%, 85.0%, and 78.6%; for hepatocellular carcinoma patients beyond the Milan criteria, survival rates were 71.9%, 52.5%, and 38.2%. CONCLUSIONS In regions without a sufficient number of deceased donors, living-donor liver transplant, with its associated problems, is the only alternative to deceased-donor liver transplant. Liver transplant requires teamwork, with all players working well together for a successful outcome. The important keys to success in liver transplant include decision-making, timing, surgical skills, experience, and close follow-up.
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Ertugrul G, Yankol Y, Mecit N, Kirimlioglu H, Kanmaz T, Acarli K, Kalayoglu M. Liver Transplant and Improvements in Cholesterol Biosynthesis Defects: A Case Report of Smith-Lemli-Opitz Syndrome. EXP CLIN TRANSPLANT 2019; 20:104-107. [PMID: 30674241 DOI: 10.6002/ect.2018.0131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 02/11/2025]
Abstract
Smith-Lemli-Opitz syndrome is an autosomal recessive metabolic disease characterized by mental retardation and multiple congenital anomalies. The main pathology is the lack of the enzyme 3β-hydroxysterol Δ7-reductase, which is the last enzymatic step in cholesterol synthesis, ending with a low cholesterol level. Cholesterol is vitally important in cell membranes and myelination of the nervous system. The cholesterol level affects many systems of the body, especially the nervous system. The cause of liver involvement in Smith-Lemli-Opitz syndrome is unclear, and many hypotheses have been suggested. Here, we present the early results of a patient with Smith-Lemli-Opitz syndrome who underwent living-donor liver transplant due to cirrhosis. As a result of liver transplant, normal cholesterol levels were shown, as well as improvements in the patient's neurodevelopment and behavior. Early liver transplant may be considered for patients with a defect of cholesterol biosynthesis, even in the absence of cirrhosis, and may be a future treatment option to prevent risks of neurologic deterioration.
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Okur MH, Yankol Y, Mecit N, Hoş G, Ertugrul G, Kanmaz T, Acarli K, Kalayoglu M. Diaphragmatic Hernia After Liver Transplant in Children: Report of 2 Cases. EXP CLIN TRANSPLANT 2016; 16:337-339. [PMID: 27143191 DOI: 10.6002/ect.2015.0242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] [Imported: 02/11/2025]
Abstract
OBJECTIVES Diaphragmatic hernia is a rare complication after pediatric liver transplant. This report presents occurrences of diaphragmatic hernia after living-donor liver transplants in 2 children. MATERIALS AND METHODS In 1 of the 2 patients, a right-sided diaphragmatic hernia developed after a living-donor liver transplant due to progressive familial intrahepatic cholestasis where a left lateral segment graft was used. In the other patient, a left-sided diaphragmatic hernia developed after a living-donor liver transplant due to biliary atresia following Kasai portoenterostomy where a left lateral segment graft was used. RESULTS After diaphragm repair, the postoperative course was uneventful and there were no recurrences. CONCLUSIONS A literature review identified nearly 30 cases of diaphragmatic hernia following liver transplants; diaphragmatic hernia should be considered a potential surgical complication after liver transplant.
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YANKOL Y, HOŞ G, KANMAZ T, MECİT N, ÇAKALOĞLU Y, KALAYOĞLU M, ACARLI KS. Are the criteria always right? Assessment of hepatocellular carcinoma cases in living
donor liver transplantation at a high-volume center. Turk J Med Sci 2021; 51:2383-2395. [PMID: 33754656 PMCID: PMC8742484 DOI: 10.3906/sag-2101-51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/20/2021] [Indexed: 11/30/2022] [Imported: 08/29/2023] Open
Abstract
Background/aim With the increased experience in living donor liver transplantation (LDLT), it has been adopted for the treatment of hepatocellular carcinoma (HCC), with emerging discussions of criteria beyond tumor size and number. In contrast to deceased donor liver transplantation (DDLT), recipient selection for LDLT is not limited by organ allocation systems. We discuss herein the assessment, criteria, and experience with liver transplantation (LT) in HCC cases at a high-volume LDLT center. Material and methods Between August 2006 and December 2017, 191 adult LT HCC recipients with at least one-year follow-up were retrospectively analyzed. Results In 191 patients, one-, three- and five-year survival rates were 87.2%, 81.6%, and 76.2%, respectively, including early postoperative mortality. In 174 patients with long-term follow-up, one-, three- and five-year disease-free survival rates were 91.6%, 87.7%, and 84.4%, respectively. When multivariate analysis was utilized, tumor differentiation was the only factor which statistically affected survival (p = 0.025). Conclusion LDLT allows us to push the limits forward and the question “Are the criteria always right?” is always on the table. We can conclude that, with the advantage of LDLT, every HCC patient deserves a case-by-case basis discussion for LT under scientific literature support. In borderline cases, tumor biopsy might help determine the decision for LT.
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