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1.
World J Transplant ; 14(1): 88133, 2024 Mar 18.
Article in English | MEDLINE | ID: mdl-38576760

ABSTRACT

BACKGROUND: Data examining the impact of sex on liver transplant (LT) outcomes are limited. It is clear that further research into sex-related differences in transplant patients is necessary to identify areas for improvement. Elucidation of these differences may help to identify specific areas of focus to improve on the organ matching process, as well as the peri- and post-operative care of these patients. AIM: To utilize data from a high-volume Eurotransplant center to compare characteristics of male and female patients undergoing liver transplant and assess asso ciation between sex-specific variables with short- and long-term post-transplant outcomes. METHODS: A retrospective review of the University of Essen's transplant database was performed with collection of baseline patient characteristics, transplant-related data, and short-term outcomes. Comparisons of these data were made with Shapiro-Wilk, Mann-Whitney U, χ2 and Bonferroni tests applied where app ropriate. A P value of < 0.05 was accepted as statistically significant. RESULTS: Of the total 779 LT recipients, 261 (33.5%) were female. Female patients suffered higher incidences of acute liver failure and lower incidences of alcohol-related or viremic liver disease (P = 0.001). Female patients were more likely to have received an organ from a female donor with a higher donor risk index score, and as a high urgency offer (all P < 0.05). Baseline characteristics of male and female recipients were also significantly different. In multivariate hazard regression analysis, recipient lab-Model for End-Stage Liver Disease score and donor cause of death were associated with long-term outcomes in females. Pre-operative diagnosis of hepatocellular carcinoma, age at time of listing, duration of surgery, and units transfused during surgery, were associated with long-term outcomes in males. Severity of complications was associated with long-term outcomes in both groups. Overall survival was similar in both males and females; however, when stratified by age, females < 50 years of age had the best survival. CONCLUSION: Female and male LT recipients have different baseline and transplant-related characteristics, with sex-specific variables which are associated with long-term outcomes. Female recipients < 50 years of age demonstrated the best long-term outcomes. Pre- and post-transplant practices should be individualized based on sex-specific variables to optimize long-term outcomes.

2.
Exp Clin Transplant ; 21(10): 831-836, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37965959

ABSTRACT

OBJECTIVES: Liver volumetry based on a computed tomography scan is widely used to estimate liver volume before any liver resection, especially before living donorliver donation. The 1-to-1 conversion rule for liver volume to liver weight has been widely adopted; however, debate continues regarding this approach. Therefore, we analyzed the relationship between the left-lateral lobe liver graft volume and actual graft weight. MATERIALS AND METHODS: This study retrospectively included consecutive donors who underwent left lateral hepatectomy for pediatric living donor liver transplant from December 2008 to September 2020. All donors were healthy adults who met the evaluation criteria for pediatric living donor liver transplant and underwent a preoperative contrast-enhanced computed tomography scan. Manual segmentation of the leftlateral liverlobe for graft volume estimation and intraoperative measurement of an actual graft weight were performed. The relationship between estimated graft volume and actual graft weight was analyzed. RESULTS: Ninety-four living liver donors were included in the study. The mean actual graft weight was ~283.4 ± 68.5 g, and the mean graft volume was 244.9 ± 63.86 mL. A strong correlation was shown between graft volume and actual graft weight (r = 0.804; P < .001). Bland-Altman analysis revealed an interobserver agreement of 38.0 ± 97.25, and intraclass correlation coefficient showed almost perfect agreement(r = 0.840; P < .001). The conversion formula for calculating graft weight based on computed tomography volumetry was determined based on regression analysis: 0.88 × graft volume + 41.63. CONCLUSIONS: The estimation of left liver graft weight using only the 1-to-1 rule is subject to measurable variability in calculated graft weights and tends to underestimate the true graft weight. Instead, a different, improved conversion formula should be used to calculate graft weight to more accurately determine donor graft weight-to-recipient body weightratio and reduce the risk of underestimation of liver graft weightin the donor selection process before pediatric living donor liver transplant.


Subject(s)
Liver Transplantation , Adult , Humans , Child , Liver Transplantation/adverse effects , Living Donors , Retrospective Studies , Organ Size , Liver/diagnostic imaging , Liver/surgery , Tomography, X-Ray Computed
3.
Sci Rep ; 12(1): 16479, 2022 10 01.
Article in English | MEDLINE | ID: mdl-36183002

ABSTRACT

The precise preoperative calculation of functional liver volumes is essential prior major liver resections, as well as for the evaluation of a suitable donor for living donor liver transplantation. The aim of this study was to develop a fully automated, reproducible, and quantitative 3D volumetry of the liver from standard CT examinations of the abdomen as part of routine clinical imaging. Therefore, an in-house dataset of 100 venous phase CT examinations for training and 30 venous phase ex-house CT examinations with a slice thickness of 5 mm for testing and validating were fully annotated with right and left liver lobe. Multi-Resolution U-Net 3D neural networks were employed for segmenting these liver regions. The Sørensen-Dice coefficient was greater than 0.9726 ± 0.0058, 0.9639 ± 0.0088, and 0.9223 ± 0.0187 and a mean volume difference of 32.12 ± 19.40 ml, 22.68 ± 21.67 ml, and 9.44 ± 27.08 ml compared to the standard of reference (SoR) liver, right lobe, and left lobe annotation was achieved. Our results show that fully automated 3D volumetry of the liver on routine CT imaging can provide reproducible, quantitative, fast and accurate results without needing any examiner in the preoperative work-up for hepatobiliary surgery and especially for living donor liver transplantation.


Subject(s)
Liver Transplantation , Living Donors , Abdomen , Hepatic Veins/diagnostic imaging , Humans , Imaging, Three-Dimensional/methods , Liver/diagnostic imaging , Liver/surgery , Liver Transplantation/methods , Tomography, X-Ray Computed/methods
4.
HPB (Oxford) ; 24(11): 1975-1979, 2022 11.
Article in English | MEDLINE | ID: mdl-35817693

ABSTRACT

BACKGROUND: We implemented a multicenter interview with the donors to investigate Quality of Life (QoL) up to 20 years following donation. METHODS: Data were collected retrospectively. Complications were graded by Dindo-Clavien classification. RESULTS: Median follow-up was 16.1 years. Out of 485 donors, 272 responded (56.1%). The majority (>90%) reported they are in excellent/good overall health and positive or no impact of donation on professional life. Length of stay (LOS) was associated with impact on professional life and return to baseline functionality (both p = 0.046). Major complication was not associated with current physical condition or return to baseline normalcy (p = 0.06). Seventy-five (27.5%) reported unsure or no to donate again. None of the parameters were associated with donation again response. Faster return to baseline functionality, and more positive impact on professional life were reported in the last decade, likely secondary to less complication rates (all p < 0.001). CONCLUSION: This the longest follow up reports after living liver donation among German and Turkish populations. Although subject to recall bias, LOS was associated with negative impact on professional life and return to baseline functionality. Regret feelings were higher than literature. These long-term effects should be incorporated into donor discussions.


Subject(s)
Hepatectomy , Quality of Life , Humans , Hepatectomy/adverse effects , Retrospective Studies , Living Donors , Liver , Treatment Outcome
5.
Clin Transplant ; 36(7): e14698, 2022 07.
Article in English | MEDLINE | ID: mdl-35561085

ABSTRACT

BACKGROUND: Donor BMI above 30 is generally considered contraindication for donor hepatectomy. We compared the donor outcomes based on BMI threshold and weight loss. PATIENTS AND METHODS: All potential donors were identified and data were collected retrospectively. Steatosis was assessed based on liver-spleen Hounsfield unit difference and absolute liver intensity values. We compared BMI≥30 (n = 53) and BMI < 30 (n = 64) donor outcomes. Donors with weight loss (WL) prior to surgery were also analyzed separately. Complications were graded by Clavien-Dindo classification. RESULTS: All donors underwent open right donor hepatectomy. There was no difference between BMI≥30 and < 30 groups except female predominance in BMI≥30 group (P = .006). Both groups had similar rates of complication rates in all categories, similar remnant volume, operative time, length of stay and similar postoperative liver function recovery (all P > .05). On the other hand, donors with WL were more commonly male, had smaller graft size, and higher biliary complications rates compared to no-WL donors (all P < .05). Multivariate binary logistics regression analysis revealed no association between BMI or WL and outcomes. CONCLUSION: We demonstrate that donors with BMI≥30 have similar outcomes compared to BMI < 30 donors with our defined selection criterion, therefore BMI≥30 is not an absolute contraindication to donate right liver, provided that there is no significant steatosis and remnant liver is satisfactory. For potential overweight donors, WL down to BMI < 30 is a reasonable target. Higher biliary complication rates after WL should be investigated further.


Subject(s)
Fatty Liver , Liver Transplantation , Body Mass Index , Fatty Liver/surgery , Female , Hepatectomy , Humans , Liver/surgery , Liver Transplantation/adverse effects , Living Donors , Male , Postoperative Complications/etiology , Retrospective Studies , Weight Loss
6.
Exp Clin Transplant ; 20(3): 293-298, 2022 03.
Article in English | MEDLINE | ID: mdl-30346266

ABSTRACT

OBJECTIVES: Early hepatic artery thrombosis is rare but devastating in living-donor liver transplant recipients. In this study, our aim was to evaluate the results of all patients with early hepatic artery thrombosis at our center. MATERIALS AND METHODS: Between October 2004 and November 2015, 841 patients underwent liver transplant for end-stage liver disease at our center. All recipients with early hepatic artery thrombosis were identified and retrospectively analyzed. Early hepatic artery thrombosis was defined in our study as its occurrence within the first postoperative week. RESULTS: Early hepatic artery thrombosis was seen in 12 patients (1.8%). Seven of these 12 patients developed hepatic artery thrombosis on postoperative day 1 after intraoperative dissection of the hepatic artery with necessity of repeated reconstruction. However, the primary liver function of these patients was excellent, with nearly normal serum liver panel results. The other 5 patients were diagnosed after sudden significant increases of liver values followed by graft dysfunction within the first postoperative week. All patients were listed as high urgent and underwent retransplant. Two patients died perioperatively due to primary nonfunction, and 2 other patients died due to liver cirrhosis based on recurrent autoimmune hepatitis 29 and 106 months after retransplant. The remaining patients were alive with good liver function after a median time of 18 months (interquartile range, 13-45 mo). CONCLUSIONS: Early hepatic artery thrombosis is not always associated with graft dysfunction. Retransplant is still necessary due to ischemic cholangiopathy in the long-term follow-up. However, an elective retransplant, which could mean better outcomes, should be preferred instead of an emergency retransplant.


Subject(s)
Liver Transplantation , Thrombosis , Hepatic Artery/diagnostic imaging , Hepatic Artery/surgery , Humans , Liver Transplantation/adverse effects , Liver Transplantation/methods , Living Donors , Reoperation , Retrospective Studies , Thrombosis/diagnostic imaging , Thrombosis/etiology , Thrombosis/surgery , Treatment Outcome
7.
Ann Transplant ; 26: e930117, 2021 Aug 06.
Article in English | MEDLINE | ID: mdl-34354035

ABSTRACT

BACKGROUND Invasive fungal infections (IFI) are major risks for mortality after liver transplantation (LT). The aim of this study was to evaluate possible risk factors for the development of IFI after LT. MATERIAL AND METHODS All adult patients with IFI after LT between January 2012 and December 2016 at Essen University were identified. Pre-, intra-, and postoperative data were reviewed. These were compared to a 1-to-3 matched control group. Multinominal univariate and multivariate regression analyses were performed. RESULTS Out of the 579 adults who underwent LT, 33 (5.6%) developed postoperative IFI. Fourteen had invasive aspergillosis with 7 (50%) mortality, and 19 had Candida sepsis with 7 (37%) mortality. The overall mortality due to invasive fungal infections was 42%. Perfusion fluid contamination with yeast was detected in 5 patients (15%). Multivariate regression analyses showed that preoperative dialysis (OR=1.163; CI: 1.038-1.302), Eurotransplant donor risk index (OR=0.04; CI=0.003-0.519), length of hospital stay (OR=25.074; CI: 23.99-26.208), and yeast contamination of the preservation fluid (OR=47.8; CI: 4.77-478, 96) were associated with IFI in the Candida group, whereas duration of surgery (OR=1.013; CI: 1.005-1.022), ventilation hours (OR=0.993; CI=0.986-0.999), and days of postoperative dialysis (OR=1.195; CI: 1.048-1,362) were associated with IFI in the aspergillosis group. CONCLUSIONS Post-LT IFI had 42% mortality in our cohort. Prophylactic antifungal therapy should be expanded to broader risk groups as defined above.


Subject(s)
Invasive Fungal Infections , Liver Transplantation , Adult , Aged , End Stage Liver Disease , Female , Humans , Invasive Fungal Infections/epidemiology , Liver Transplantation/adverse effects , Male , Middle Aged , Retrospective Studies , Risk Assessment , Severity of Illness Index
8.
Cancer Control ; 28: 10732748211011960, 2021.
Article in English | MEDLINE | ID: mdl-33926242

ABSTRACT

INTRODUCTION: Liver transplantation offers the most reasonable expectation for curative treatment for hepatocellular carcinoma. Living-donor liver transplantation represents a treatment option, even in patients with extended Milan criteria. This study aimed to evaluate the outcomes of hepatocellular carcinoma patients, particularly those extended Milan criteria. MATERIALS AND PATIENTS: All HCC patients who received liver transplant for HCC were included in this retrospective study. Clinical characteristics including perioperative data and survival data (graft and patient) were extracted from records. Univariate and multivariate analyses was performed to identify significant prognostic factors for survival, postoperative complications and recurrence. RESULTS: Two-hundred and two patients were included. The median age was 54.8 years (IQR 53-61). Fifty-one patients (25.3%) underwent deceased donors liver transplantation and 151 patients (74.7%) underwent living donor liver transplantation. Perioperative mortality rate was 5.9% (12 patients). Recurrent disease occurred in 43 patients (21.2%). The overall 1-year and 5-year survival rates were 90.7% and 75.6%, respectively. Significant differences between patients beyond Milan criteria compared to those within Milan criteria were not found. Alpha-fetoprotein level >300 ng/mL, vascular invasion, and bilobar tumor lesions were independent negative prognostic factors for survival. CONCLUSION: Liver transplantation is the preferred treatment for hepatocellular carcinoma and it has demonstrated an excellent potential to cure even in patients with beyond Milan criteria. This study shows that the Milan criteria alone are not sufficient to predict survival after transplantation. The independent parameters for survival prediction are Alpha-Fetoprotein-value and status of vascular invasion.


Subject(s)
Carcinoma, Hepatocellular/surgery , Disease-Free Survival , Liver Neoplasms/surgery , Liver Transplantation/statistics & numerical data , Aged , Carcinoma, Hepatocellular/pathology , Humans , Liver Neoplasms/pathology , Living Donors , Male , Middle Aged , Neoplasm Invasiveness , Retrospective Studies , Treatment Outcome
9.
Langenbecks Arch Surg ; 406(6): 1963-1969, 2021 Sep.
Article in English | MEDLINE | ID: mdl-33847783

ABSTRACT

INTRODUCTION: Frailty has been discussed as a predictor of morbidity and mortality for liver cirrhosis. The aim of our study is to evaluate the role of frailty in liver transplantation, particularly for patients with MELD scores < 15. METHODS: All patients listed for liver transplantation between September 2015 and November 2018 were prospectively included in the study. Frailty was assessed by Fried's frailty classification. Pre-, intra-, and postoperative data were prospectively recorded. Univariate and multivariate regression analyses were performed. The ethical approval of the institutional board review was obtained for the study. RESULTS: There were 114 patients included in the study, and their median MELD score was 16. Of these, 86 patients were defined as frail (75.4%). A total of 62 patients (54.4%) underwent liver transplantation, 11 (17.7%) died postoperatively, and 24 patients (21.0%) died while on the waitlist. All postoperative mortality cases were frail, and only 3 patients (12.5%) were non-frail in the waitlist mortality group. There were 14 patients who had MELD scores of <15 (58.3%). The overall survival of non-frail patients was significantly better than that of frail patients. The multivariate regression analyses identified frailty criteria, including unintended weight loss and low hand grip strength, and platelet count and being married or living in a solid partnership were prognostic factors for survival in all patients. CONCLUSION: The addition of frailty assessment can be beneficial for predicting mortality after liver transplantation, especially in patients with low MELD score. Frail patients on the waitlist have significant risk for mortality even with low MELD score.


Subject(s)
Frailty , Liver Transplantation , Frailty/diagnosis , Hand Strength , Humans , Prospective Studies , Severity of Illness Index
10.
Exp Clin Transplant ; 19(2): 131-136, 2021 02.
Article in English | MEDLINE | ID: mdl-33455566

ABSTRACT

OBJECTIVES: We analyzed the nutritional condition of liver transplant recipients and the body mass index, the inner abdominal fat tissue, the outer abdominal fat tissue, the psoas muscle size, and the psoas muscle index of the recipients and evaluated the effects of these factors on patient outcomes after liver transplant. MATERIALS AND METHODS: We included recipients of liver transplants from January 2009 to December 2018 who had computed tomography at our center < 3 months before transplant. Preoperative, intraoperative, and postoperative data were evaluated. Outer abdominal fat tissue, inner abdominal fat tissue, and psoas muscle area were measured on the computed tomography abdominal images. We used univariate and multi-variate regression analyses to evaluate the data. RESULTS: There were 265 patients; mean age was 54 years (SD, 13 years). The mean value for body mass index, calculated as weight in kilograms divided by height in meters squared, was 25 (SD, 5). The mean score for Model for End-Stage Liver Disease was 17 (SD, 6). All patients underwent orthotopic liver transplant by standard technique. After adjustment for multivariable analysis, the values for psoas muscle size and the psoas muscle index of the recipient were associated as independent factors for postoperative complications and duration of hospital stay. The survival rate at 1 year was 78.5%, and the rate of perioperative mortality was 16.6%. Independent factors associated with survival after liver transplant were inner abdominal fat tissue, etiology, and rate of major postoperative complications. CONCLUSIONS: Inner abdominal fat tissue, psoas muscle size, and the psoas muscle index are significantly associated with postoperative complications and/or survival after liver transplant. Our results suggest that these prognostic factors may be useful to optimize the selection of appropriate candidates for liver transplant.


Subject(s)
Abdominal Fat/diagnostic imaging , End Stage Liver Disease , Liver Transplantation , Psoas Muscles , Adult , Aged , Humans , Liver Transplantation/adverse effects , Middle Aged , Postoperative Complications/diagnostic imaging , Postoperative Complications/etiology , Psoas Muscles/diagnostic imaging , Severity of Illness Index , Survival Rate
11.
Clin Transplant ; 35(2): e14094, 2021 02.
Article in English | MEDLINE | ID: mdl-32970878

ABSTRACT

INTRODUCTION: Combined hepatocellular-cholangiocarcinoma is rare and comprises features of hepatocellular carcinoma and cholangiocarcinoma. The treatment of choice has not yet been defined. The aim of the study was to analyze outcomes of patients with combined hepatocellular-cholangiocarcinoma, who underwent liver transplantation. MATERIAL AND METHODS: All patients with combined hepatocellular-cholangiocarcinoma, who underwent liver transplantation, from January 2001 to August 2018 were identified. Pre-, intra- and postoperative data were retrospectively assessed. A univariate analysis was performed to identify prognostic factors. RESULTS: A total number of 19 patients were included to this study. Perioperative death was seen in two patients (10.5%). Recurrent disease was reported in 11 patients (64.7%) within the median time of 4 months. One and three years survival rates were 57.1% (CI 0.301-1) and 38.1% (CI 0.137-1). Factors associated mortality were tumor size >3 cm, presence of lymphatic invasion, and prolonged ICU stay. Patients with mixed HCC-CC lesions have significantly better survival compared to patients with separate lesions of HCC and CCC in one liver (p = .025). CONCLUSION: Although overall survival rates are clearly decreased compared to HCC patients, liver transplantation should be taken under consideration for selected patients with early stage and real mixed HCC-CC, who are likely to benefit from liver transplantation.


Subject(s)
Bile Duct Neoplasms , Carcinoma, Hepatocellular , Cholangiocarcinoma , Liver Neoplasms , Liver Transplantation , Bile Duct Neoplasms/surgery , Bile Ducts, Intrahepatic , Carcinoma, Hepatocellular/surgery , Cholangiocarcinoma/surgery , Humans , Liver Neoplasms/surgery , Prognosis , Retrospective Studies
12.
Eur Radiol ; 31(4): 1795-1804, 2021 Apr.
Article in English | MEDLINE | ID: mdl-32945971

ABSTRACT

OBJECTIVES: Body tissue composition is a long-known biomarker with high diagnostic and prognostic value not only in cardiovascular, oncological, and orthopedic diseases but also in rehabilitation medicine or drug dosage. In this study, the aim was to develop a fully automated, reproducible, and quantitative 3D volumetry of body tissue composition from standard CT examinations of the abdomen in order to be able to offer such valuable biomarkers as part of routine clinical imaging. METHODS: Therefore, an in-house dataset of 40 CTs for training and 10 CTs for testing were fully annotated on every fifth axial slice with five different semantic body regions: abdominal cavity, bones, muscle, subcutaneous tissue, and thoracic cavity. Multi-resolution U-Net 3D neural networks were employed for segmenting these body regions, followed by subclassifying adipose tissue and muscle using known Hounsfield unit limits. RESULTS: The Sørensen Dice scores averaged over all semantic regions was 0.9553 and the intra-class correlation coefficients for subclassified tissues were above 0.99. CONCLUSIONS: Our results show that fully automated body composition analysis on routine CT imaging can provide stable biomarkers across the whole abdomen and not just on L3 slices, which is historically the reference location for analyzing body composition in the clinical routine. KEY POINTS: • Our study enables fully automated body composition analysis on routine abdomen CT scans. • The best segmentation models for semantic body region segmentation achieved an averaged Sørensen Dice score of 0.9553. • Subclassified tissue volumes achieved intra-class correlation coefficients over 0.99.


Subject(s)
Neural Networks, Computer , Semantics , Abdomen , Body Composition , Humans , Image Processing, Computer-Assisted , Tomography, X-Ray Computed
13.
Transplant Proc ; 53(1): 36-41, 2021.
Article in English | MEDLINE | ID: mdl-32505498

ABSTRACT

PURPOSE: In living donor liver transplantation, poor compatibility of the recipient hepatic artery remains a technical challenge. Here, we analyzed our 14 years of experience with extra-anatomic hepatic artery reconstruction. METHODS: Between July 2004 and December 2018, there were 1063 liver transplantations at our center. All patients with an extra-anatomic hepatic artery reconstruction were identified. The gastroduodenal artery and the transposed splenic artery were the primary options for extra-anatomic arterial reconstruction. Patient characteristics, operative data, and post-transplant outcome were reviewed retrospectively. RESULTS: There were 22 patients with extra-anatomic hepatic artery reconstruction, 6 with gastroduodenal artery, and 16 with splenic artery. There were 2 major complications: 1 patient underwent early reoperation due to bleeding from the splenic artery trunk and another had an iatrogenic injury to the transposed splenic artery during conversion hepaticojejunostomy. Both were treated successfully with surgery. One patient died perioperatively due to sepsis. The 1- and 3-year graft survival rates of these 16 patients were 93.7% and 87.5%. CONCLUSION: If the hepatic arteries are not suitable for anastomosis, then we consider the gastroduodenal artery and the splenic artery to be the conduits of choice for extra-anatomic arterial reconstruction. The transposed splenic artery is very consistent, easily accessible, and offers adequate length and diameter for successful arterial anastomosis.


Subject(s)
Hepatic Artery/surgery , Liver Transplantation/methods , Plastic Surgery Procedures/methods , Splenic Artery/surgery , Vascular Surgical Procedures/methods , Adult , Allografts/blood supply , Anastomosis, Surgical/methods , Female , Humans , Liver/blood supply , Liver Transplantation/mortality , Living Donors , Male , Middle Aged , Retrospective Studies , Treatment Outcome , Young Adult
15.
Transplant Proc ; 51(10): 3315-3319, 2019 Dec.
Article in English | MEDLINE | ID: mdl-31735323

ABSTRACT

BACKGROUND: Previously published data have shown that age alone is not a contraindication for living donor liver transplantation (LDLT). However, careful evaluation is needed to identify the patients who are unlikely to benefit from LDLT. We hypothesized that the Charlson Comorbidity Index (CCI) could be used as one of the criteria for risk stratification in elderly patients undergoing LDLT. PATIENTS AND METHODS: There were 951 patients who underwent LDLT between October 2004 and February 2018. All recipients who were older than 60 years of age at the time of transplantation were identified. The comorbidity score was retrospectively assessed for each elderly patient according to the Charlson Comorbidity Index. Univariate and multivariate Cox regression analyses were performed to identify independent predictive factors for survival in elderly patients after LDLT. RESULTS: There were 96 patients (10.1%) in the age of > 60 years. All patients received the right lobe of their donor. Out of these patients, 18 (18.7%) died in the median time of 4 months. The remaining 78 patients (81.2%) are alive, with a median survival of 33 months. The CCI of these patients was significantly lower compared to the other 18 patients (2 versus 4). None of the patients with a CCI above 4 survived longer than 12 months. The results of the multivariate Cox regression analyses have shown that pulmonary disease, renal disease, and CCI are independent negative predictive factors for survival. CONCLUSION: The results of our study show clearly that the CCI has a significant influence on survival after LDLT in elderly patients and can be used as one of the selection criteria for LDLT in elderly patients.


Subject(s)
Age Factors , Health Status Indicators , Liver Transplantation/methods , Patient Selection , Aged , Aged, 80 and over , Comorbidity , Female , Humans , Living Donors , Male , Middle Aged , Multivariate Analysis , Predictive Value of Tests , Proportional Hazards Models , Retrospective Studies , Time Factors
16.
Liver Transpl ; 22(12): 1643-1648, 2016 12.
Article in English | MEDLINE | ID: mdl-27509534

ABSTRACT

The graft-to-recipient weight ratio (GRWR) is an important selection criterion for living donor liver transplantation (LDLT). The generally accepted threshold is known to be 0.8%. We believe that this threshold can be reduced under certain conditions. The aim of this study was to evaluate the results of these patients with GRWR < 0.8%. Between 2004 and 2015, 649 patients underwent right lobe LDLT for end-stage liver disease in adult patients. All recipients who had GRWR < 0.8% were identified. The data of these patients were retrospectively analyzed and compared to patients with GRWR ≥ 0.8%. There were 43 patients with GRWR < 0.8%. Out of these patients, 7 (16%) had GRWR of 0.6%. The median Model for End-Stage Liver Disease (MELD) score was 15, and the median donor age was 30 years. Anterior segment drainage was ensured. Portal inflow modulation was performed by splenic artery ligation according to the portal flow. Postoperative complications were seen in 6 (14%) patients. Of all 43 patients, 3 (7%) died perioperatively within 1 month, and 1 (2%) patient underwent retransplantation due to graft failure. The mean hospital stay was 18 days. The 1-year survival rate was 93%. None of the patients had a laboratory MELD score above 20. The comparison of the results with the patients who had GRWR ≥ 0.8% has shown no significant difference, except MELD score, body mass index (BMI), and rate of anterior segment drainage. The GRWR can be decreased even to 0.6% if the MELD score is below 20, donor age is below 45 years, and there are no signs for any hepatosteatosis of the donor graft. In these patients, it is essential that the anterior segment drainage is secured and the portal inflow modulation is performed according to the portal flow. Liver Transplantation 22 1643-1648 2016 AASLD.


Subject(s)
Donor Selection/methods , End Stage Liver Disease/surgery , Liver Transplantation/methods , Adult , Body Mass Index , Drainage , Female , Graft Rejection/surgery , Humans , Length of Stay , Liver/anatomy & histology , Liver Circulation , Liver Transplantation/mortality , Living Donors , Male , Middle Aged , Organ Size , Portal System/physiopathology , Postoperative Complications/epidemiology , Reoperation , Retrospective Studies , Risk Factors , Severity of Illness Index , Survival Rate , Treatment Outcome
17.
Pediatr Transplant ; 20(8): 1060-1064, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27435024

ABSTRACT

FH is an autosomal dominant genetic disorder characterized by increased TC and LDL level, which leads to xanthomas, atherosclerosis, and cardiac complications even in childhood. The treatment options are diet, medical treatment, lipid apheresis, and LT. The aim of our study was to analyze our data of patients with FH. Between 2004 and 2015, there were 51 patients who underwent pediatric LT at our center. All patients with FH were identified, and the data were retrospectively analyzed. There were eight patients with homozygous FH in the median age of 10 years (IQR 6-12) who underwent LT. The median pre-operative TC and LDL levels were 611 mg/dL (IQR: 460-844) and 574 mg/dL (IQR: 398-728) and decreased to normal levels 1 week after LT (TC: 193 mg/dL and LDL: 141 mg/dL). Two patients died two and 18 months after LT due to sudden cardiac arrest. Both patients were diagnosed with cardiovascular disease pre-operatively. The LT is the only curative treatment for this disease. To achieve an excellent outcome, it should be performed before the development of cardiovascular disease, because the regression of severe cardiovascular disease after transplantation is limited.


Subject(s)
Hyperlipoproteinemia Type II/surgery , Liver Transplantation , Blood Component Removal , Cardiovascular Diseases/complications , Child , Female , Homozygote , Humans , Hyperlipoproteinemia Type II/genetics , Living Donors , Male , Mutation , Receptors, LDL/genetics , Retrospective Studies , Tissue Donors , Treatment Outcome , Xanthomatosis/complications
18.
Transplantation ; 99(7): 1436-40, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25606791

ABSTRACT

INTRODUCTION: Previous published studies have shown that age is not a contraindication for deceased donor liver transplantation. The data about elderly recipient after living donor liver transplantation (LDLT) is unsatisfactory. The aim of this study was to evaluate the outcome of the LDLT with recipients aged 70 years or older. PATIENTS AND METHODS: Between 2005 and 2013, 469 patients underwent LDLTs. The clinical characteristics, preoperative, intraoperative, and postoperative data, graft, and patients' survival of these patients were retrospectively analyzed. All recipients who were 70 years or older at the time of liver transplantation were indentified. The results were compared to the results of the patients younger than 70 years. RESULTS: There were 12 patients (2%) 70 years or older. All patients received the right lobe of their donor in a standard technique. One patient died postoperatively because of pulmonary infection, and one patient died 6 months after the operation because of graft failure after cardiac infarction. The comorbidity score of these two patients were significantly higher compared to the other ten patients without any complications (8.5 vs. 4.6, P = 0.01). The 1-year and 3-year patient and graft survival was 84%. There were no significant differences in complications, hospital stay, perioperative mortality, or median survival compared to the younger group. CONCLUSION: Although the number of the patients is small, our study emphasizes that LDLT of patients 70 years or older can be performed safely in patients without major comorbidities. Elderly patients with increased risk for postoperative complications should be excluded from LDLT.


Subject(s)
End Stage Liver Disease/surgery , Liver Transplantation/methods , Living Donors , Age Factors , Aged , Comorbidity , End Stage Liver Disease/diagnosis , End Stage Liver Disease/mortality , Female , Graft Survival , Humans , Kaplan-Meier Estimate , Length of Stay , Liver Transplantation/adverse effects , Liver Transplantation/mortality , Male , Middle Aged , Patient Selection , Postoperative Complications/mortality , Retrospective Studies , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
19.
J Gastrointest Surg ; 17(6): 1032-5, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23564309

ABSTRACT

INTRODUCTION: Practitioners have noted a striking increase in the number of young patients under the age of 40 years old who develop esophageal adenocarcinoma. The aim of this study was to characterize the presentation, pathology and therapeutic outcome of these young patients. METHODS: The records of patients who presented to the Foregut Surgical Service at the University of Southern California with esophageal adenocarcinoma between 2000 and 2007 were retrospectively reviewed. The presentation, tumor stage and histology, therapy and outcome of the patients under the age of 40 were compared to those ≥40. RESULTS: Of the 374 patients reviewed, 20 (5 %) were under the age of 40. There were two patients in their second and 18 in their third decade of life. The youngest patient was 25 years old. A history of gastroesophageal reflux disease or Barrett's esophagus was less common in patients <40 than in those ≥40; 15 and 5 % compared to 61 and 46 %. Similarly, patients <40 had a significantly longer time interval between the onset of symptoms and the diagnosis of their cancer than those ≥40; 4.5 vs. 2 months, p = 0.04. They also had a higher prevalence of stage IV disease (30 vs. 6 %, p = 0.0003), a shorter time to recurrence (9.5 vs.19 month, p = 0.002), and a poorer median survival (17 vs. 43 month, p = 0.04). CONCLUSION: Esophageal adenocarcinoma in patients <40 years old commonly presents with an advanced stage of the disease and an associated poor survival. This is likely due to a low index of suspicion that dysphagia seen in younger patients is due to a malignancy.


Subject(s)
Adenocarcinoma/pathology , Barrett Esophagus/complications , Esophageal Neoplasms/secondary , Gastroesophageal Reflux/complications , Adenocarcinoma/complications , Adenocarcinoma/surgery , Adult , Aged , Deglutition Disorders/etiology , Disease-Free Survival , Esophageal Neoplasms/complications , Esophageal Neoplasms/surgery , Esophagectomy , Female , Humans , Male , Middle Aged , Neoplasm Recurrence, Local , Neoplasm Staging , Retrospective Studies
20.
J Surg Oncol ; 105(3): 284-7, 2012 Mar.
Article in English | MEDLINE | ID: mdl-21953648

ABSTRACT

BACKGROUND: Esophagectomy with gastric pull-up is the optimal treatment for patients with resectable esophageal cancer. Although the morbidity and mortality of an esophagectomy is reduced, the long-term outcome remains poor. The aim of this study was to evaluate the 10-year survival of a standardized multidisciplinary therapy concept for esophageal cancer. METHODS: Between 1989 and 1999, 114 patients were treated for esophageal cancer at the University of Essen. All patients underwent an en-bloc esophagectomy with systematic lymphadenectomy. Patients with locally advanced disease (stage III) received neoadjuvant therapy. All patients were followed-up for 10 years or more or until death. RESULTS: The 3-year survival was 35%, the 5-year survival 25%, and the 10-year survival was 18%. The recurrence rate was 44% with a median time of 13 months. There was no significant difference in survival between patients with locally advanced disease who received neoadjuvant therapy and patients with early disease (stadium I + II) who underwent surgery alone. Of the patients who achieved 10-year survival, 60% had locally advanced disease and received neoadjuvant therapy. CONCLUSION: Patients with locally advanced disease, managed by a multidisciplinary treatment strategy, achieved a similar long-term survival to patients with early disease (stadium I + II).


Subject(s)
Esophageal Neoplasms/mortality , Esophageal Neoplasms/surgery , Esophagectomy/methods , Adenocarcinoma/mortality , Adenocarcinoma/pathology , Adenocarcinoma/surgery , Aged , Carcinoma, Squamous Cell/mortality , Carcinoma, Squamous Cell/pathology , Carcinoma, Squamous Cell/surgery , Esophageal Neoplasms/pathology , Female , Follow-Up Studies , Humans , Lymph Node Excision , Male , Middle Aged , Neoadjuvant Therapy , Neoplasm Recurrence, Local , Retrospective Studies
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