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Lidofsky SD, Bass NM, Prager MC, Washington DE, Read AE, Wright TL, Ascher NL, Roberts JP, Scharschmidt BF, Lake JR. Intracranial pressure monitoring and liver transplantation for fulminant hepatic failure. Hepatology 1992; 16:1-7. [PMID: 1618463 DOI: 10.1002/hep.1840160102] [Citation(s) in RCA: 199] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cerebral edema and intracranial hypertension, commonly present in fulminant hepatic failure, may lead to brainstem herniation and limit the survival of comatose patients awaiting liver transplantation before a donor organ becomes available. Also, they are likely responsible for postoperative neurological morbidity and mortality. Although intracranial pressure monitoring has been proposed to aid clinical decision making in this setting, its use in the prevention of brainstem herniation preoperatively, in the selection of patients for liver transplantation who have the potential for neurological recovery and in the maintenance of cerebral perfusion during liver transplantation has not been examined in detail. To address these issues, we established a protocol for intracranial pressure monitoring in comatose patients with fulminant hepatic failure as part of their preoperative and intraoperative management. Twenty adults and three children underwent intracranial pressure monitoring. Ten patients required preoperative medical therapy with mannitol, barbiturates or both for a rise in intracranial pressure above 25 mm Hg. Four patients had a sustained lowering of intracranial pressure, three of whom survived hospitalization. Six patients had intracranial hypertension refractory to medical management, were removed from a waiting list for a donor organ and died with brainstem herniation. Of the remaining 17 patients, 3 died of other causes while awaiting a donor organ, 2 recovered spontaneously without neurological sequelae and 12 underwent liver transplantation. All but one patient undergoing liver transplantation had transient intraoperative intracranial hypertension develop, requiring medical treatment. The 12 patients who had transplants recovered neurologically and were discharged from the hospital.(ABSTRACT TRUNCATED AT 250 WORDS)
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Liu T, Freise CE, Ferrell L, Ascher NL, Roberts JP. A modified vascular "sleeve" anastomosis for rearterialization in orthotopic liver transplantation in rats. Transplantation 1992; 54:179-80. [PMID: 1631933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wright TL, Donegan E, Hsu HH, Ferrell L, Lake JR, Kim M, Combs C, Fennessy S, Roberts JP, Ascher NL. Recurrent and acquired hepatitis C viral infection in liver transplant recipients. Gastroenterology 1992; 103:317-22. [PMID: 1377143 DOI: 10.1016/0016-5085(92)91129-r] [Citation(s) in RCA: 379] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To examine the postliver transplant recurrence of hepatitis C virus (HCV) infection in patients with pretransplant infection, as well as its acquisition in patients without prior infection, we used the polymerase chain reaction to amplify HCV RNA in serum and/or liver samples of 89 patients with alcoholic and cryptogenic cirrhosis undergoing liver transplantation. Results were correlated with histologic findings from posttransplant liver biopsies. Ninety-five percent of patients with pretransplant infection had posttransplant viremia. In contrast, 35% of patients without pretransplant infection acquired the virus (P less than 0.0001). Pretransplant HCV infection predisposed patients to hepatitis in the new graft. HCV RNA was present in serum of 96% of patients with posttransplant hepatitis. Fifty-six percent of patients with posttransplant HCV infection had no evidence of liver damage at least 1 year posttransplant. However, of those patients with histologic hepatitis, chronic active hepatitis was common. It is concluded that although HCV infection recurs posttransplant in almost all infected patients, acquisition of the HCV infection with transplant is common. Pretransplant HCV infection is an independent risk factor for the development of posttransplant hepatitis. HCV infection accounts for the majority of posttransplant hepatitis not due to cytomegalovirus, and although many patients with posttransplant viremia have little evidence of histologic hepatitis, significant hepatic damage may occur.
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Wright TL, Mamish D, Combs C, Kim M, Donegan E, Ferrell L, Lake J, Roberts J, Ascher NL. Hepatitis B virus and apparent fulminant non-A, non-B hepatitis. Lancet 1992; 339:952-5. [PMID: 1348798 DOI: 10.1016/0140-6736(92)91530-l] [Citation(s) in RCA: 129] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
While there is evidence that hepatitis C virus (HCV) does not cause fulminant non-A, non-B hepatitis, the causal agent remains unknown. To evaluate the role of hepatitis B virus (HBV) in this disease, we used a two-step polymerase chain reaction (PCR) to amplify the surface and core regions of HBV DNA in serum and liver samples taken prospectively from twenty-six patients (mean age 36 years, range 1 to 64) with acute hepatic failure undergoing liver transplantation. HBV DNA was absent from the serum of all patients before transplantation. Seventeen patients were diagnosed as having non-A, non-B hepatitis because they lacked serological evidence of hepatitis A virus or HBV infection. Liver samples were taken from twelve of these patients, and six samples were positive for HBV DNA. By contrast HBV DNA was not detected in liver from three patients with acute liver failure caused by hepatitis A or toxins. HCV RNA was not found in pretransplant samples by PCR. Four of the six patients with detectable HBV DNA in liver and presumptive non-A, non-B hepatitis had detectable HBV DNA in serum after transplantation. One additional patient who did not donate pretransplant liver had HBV DNA in a post-transplant serum sample. Thus, HBV DNA was present before or after transplantation in seven of seventeen patients with apparent non-A, non-B hepatitis. Three of five patients with detectable post-transplant serum HBV DNA were serologically positive for HBV surface antigen. These findings indicate that HBV may be a common cause of fulminant hepatic failure in patients lacking serological evidence of HBV infection.
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Bumgardner GL, Chen S, Almond PS, Bach FH, Ascher NL, Matas AJ. Cell subsets responding to purified hepatocytes and evidence of indirect recognition of hepatocyte major histocompatibility complex class I antigen. II. In vitro-generated "memory" cells to class I+ class II- hepatocytes. Transplantation 1992; 53:863-8. [PMID: 1566352 DOI: 10.1097/00007890-199204000-00029] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Purified hepatocytes stimulate the development of L3T4-, Ly2+ allospecific cytolytic T cells from naive splenocytes after 5 days in primary mixed lymphocyte-hepatocyte culture (MLHC). Previous studies indicate that the immunogenicity of purified hepatocytes relates to the expression of MHC class I antigen. The purpose of the following experiments was to identify the cell subsets that specifically recognize hepatocyte MHC class I antigen. We employed primed lymphocyte testing (PLT) in order to test for a "second set" response. Cells from primary MLHC reverted to a functionally quiescent state when they were grown in culture for an additional 7-9 days. The cells were then tested for cytotoxicity or rechallenged with allogeneic, syngeneic, or "third party" hepatocytes and tested for proliferation. Allocytotoxicity was low on day 12 in MLHC, but the sensitized cell population demonstrated peak proliferation in response to allogeneic hepatocytes 48 hr after restimulation. When bulk PLT cells were immunodepleted, both L3T4+, Ly2- and L3T4-, Ly2+ T cell subsets demonstrated a "second set" response to allogeneic hepatocytes consistent with specific recognition of and retention of "memory" for hepatocyte MHC class I alloantigen.
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Bumgardner GL, Chen S, Almond PS, Bach FH, Ascher NL, Matas AJ. Cell subsets responding to purified hepatocytes and evidence of indirect recognition of hepatocyte major histocompatibility complex class I antigen. I. The role of L3T4+ T cells in the development of allospecific cytotoxicity in hepatocyte-sponge matrix allografts. Transplantation 1992; 53:857-62. [PMID: 1566351 DOI: 10.1097/00007890-199204000-00028] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The purpose of this study was to determine the role of L3T4+, Ly2- T cells in the development of allospecific cytolytic T cells in response to purified allogeneic MHC class I+, class II- hepatocytes in vivo in hepatocyte-sponge matrix allografts (HC-SMA). In previous studies we have shown that 99% pure murine hepatocytes stimulate the development of allospecific cytolytic T cells in vitro in mixed lymphocyte-hepatocyte culture (MLHC) and in vivo in HC-SMA. Furthermore, depletion of L3T4+, Ly2- T cells from responder splenocytes inhibits the development of allo-CTLs in response to purified hepatocytes in mixed lymphocyte-hepatocyte culture. Here, using an anti-L3T4 monoclonal antibody, we tested the effect of in vivo immunodepletion of L3T4+, Ly2- T cells on the subsequent development of allo-CTLs in HC-SMA. Sponge cells were harvested on day 4 and day 12 after grafting from control and treated groups and phenotypically analyzed by FACS and immunofluorescent labelling. Splenocytes from the same animals were similarly analyzed to assess for completeness of immunodepletion. Allospecific cytotoxicity was assessed on day 12 after grafting. We found that immunotherapy with anti-L3T4 mAb was effective in depleting L3T4+, Ly2- T cells from the spleen; however, a similar number of L3T4+ cells was isolated from the sponge between control and treated groups. Furthermore, the development of allo-CTLs in response to hepatocytes in HC-SMA was completely abrogated by both local and systemic immunotherapy with anti-L3T4 mAb. We conclude from these and previous data that host or responder L3T4+, Ly2- T cells and responder accessory cells in MLHC or host macrophages in HC-SMA may participate in "indirect" recognition of hepatocyte class I antigen both in vitro and in vivo.
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Ring EJ, Lake JR, Roberts JP, Gordon RL, LaBerge JM, Read AE, Sterneck MR, Ascher NL. Using transjugular intrahepatic portosystemic shunts to control variceal bleeding before liver transplantation. Ann Intern Med 1992; 116:304-9. [PMID: 1733385 DOI: 10.7326/0003-4819-116-4-304] [Citation(s) in RCA: 152] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To determine the safety and efficacy of transjugular intrahepatic portosystemic shunts (TIPS) in controlling bleeding from esophageal varices in patients awaiting liver transplantation. DESIGN Prospective, uncontrolled trial. SETTING University medical center with an active liver transplant program. PATIENTS Thirteen patients referred for liver transplantation with either active variceal hemorrhage or recurrent variceal hemorrhage despite sclerotherapy; four patients had been previously treated with surgical portosystemic shunts. INTERVENTION An intrahepatic portosystemic shunt created via a transjugular approach to the hepatic veins using expandable, flexible metallic stents. MEASUREMENTS Portal pressures before and after the creation of the shunt, the direction of portal blood flow at differing diameters of the shunts, procedure-related complications, and outcome in terms of survival, liver transplantation, and recurrent variceal bleeding. MAIN RESULTS The transjugular intrahepatic portosystemic shunt was placed successfully in 13 patients, and bleeding was controlled acutely in all 13. After the procedure, the mean portal pressure decreased from 34 +/- 8.9 cm H2O to 22.4 +/- 5.4 cm H2O (P less than 0.001). No complications were associated with the procedure; however, two patients died of causes unrelated to the procedure. Seven patients subsequently underwent liver transplantation and are doing well, and three patients are being managed conservatively. Bleeding recurred in one patient 102 days after the procedure secondary to shunt occlusion caused by neointimal proliferation. CONCLUSION Placement of a transjugular intrahepatic portosystemic shunt is apparently safe and effective therapy for variceal hemorrhage in patients referred for liver transplantation.
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Martinez OM, Krams SM, Sterneck M, Villanueva JC, Falco DA, Ferrell LD, Lake J, Roberts JP, Ascher NL. Intragraft cytokine profile during human liver allograft rejection. Transplantation 1992; 53:449-56. [PMID: 1738940 DOI: 10.1097/00007890-199202010-00035] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Forty-three human liver allograft biopsies and normal liver were directly analyzed for inflammatory and immunoregulatory cytokine gene expression by polymerase chain reaction (PCR). IL-5 gene expression was predominantly present in biopsies from liver allografts with histopathological evidence of acute rejection. IL-2 gene expression was rarely observed in rejecting allografts or allografts without evidence of rejection. In contrast, IL-4 message was readily detectable in the majority of liver allografts regardless of clinical status. The inflammatory mediators IL-1 beta, TNF-alpha, and IL-6 were detected with similar frequency in rejecting allografts and allografts without evidence of rejection. These findings suggest that inflammatory and immunoregulatory cytokines are produced within the allograft. Moreover, IL-5 may play a role in the local mechanisms of liver allograft rejection.
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Evans RW, Orians CE, Ascher NL. The potential supply of organ donors. An assessment of the efficacy of organ procurement efforts in the United States. JAMA 1992. [PMID: 1727520 DOI: 10.1001/jama.1992.03480020049030] [Citation(s) in RCA: 175] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVES To estimate the potential supply of organ donors and to measure the efficiency of organ procurement efforts in the United States. METHODS A geographic database has been developed consisting of multiple cause of death and sociodemographic data compiled by the National Center for Health Statistics. All deaths are evaluated as to their potential for organ donation. Two classes of potential donors are identified: class 1 estimates are restricted to causes of death involving significant head trauma only, and class 2 estimates include class 1 estimates as well as deaths in which brain death was less probable. RESULTS Over 23,000 people are currently awaiting a kidney, heart, liver, heart-lung, pancreas, or lung transplantation. Donor supply is inadequate, and the number of donors remained unchanged at approximately 4000 annually for 1986 through 1989, with a modest 9.1% increase in 1990. Between 6900 and 10,700 potential donors are available annually (eg, 28.5 to 43.7 per million population). Depending on the class of donor considered, organ procurement efforts are between 37% and 59% efficient. Efficiency greatly varies by state and organ procurement organization. CONCLUSIONS Many more organ donors are available than are being accessed through existing organ procurement efforts. Realistically, it may be possible to increase by 80% the number of donors available in the United States (up to 7300 annually). It is conceivable, although unlikely, that the supply of donor organs could achieve a level to meet demand.
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Prager MC, Johnson KL, Ascher NL, Roberts JP. Anesthetic care of patients with Crigler-Najjar syndrome. Anesth Analg 1992; 74:162-4. [PMID: 1734784 DOI: 10.1213/00000539-199201000-00031] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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137
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Hebert MF, Ascher NL, Lake JR, Roberts JP. Efficacy and toxicity of FK 506 for the treatment of resistant rejection in liver transplant patients. Transplant Proc 1991; 23:3109-10. [PMID: 1721373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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138
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Freise CE, Rowley H, Lake J, Hebert M, Ascher NL, Roberts JP. Similar clinical presentation of neurotoxicity following FK 506 and cyclosporine in a liver transplant recipient. Transplant Proc 1991; 23:3173-4. [PMID: 1721397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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139
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LaBerge JM, Ferrell LD, Ring EJ, Gordon RL, Lake JR, Roberts JP, Ascher NL. Histopathologic study of transjugular intrahepatic portosystemic shunts. J Vasc Interv Radiol 1991; 2:549-56. [PMID: 1797223 DOI: 10.1016/s1051-0443(91)72241-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A detailed histopathologic analysis of intrahepatic portosystemic shunts was performed following liver transplantation in five patients. Gross examination revealed that all stents were patent and unchanged in size, shape, and position from initial placement. Histologic examination at 4 days revealed an irregular luminal surface with liver parenchyma protruding between the stent wires and a single, patchy layer of endothelial cells lining the shunt surface. By 3 weeks, the stent wires were covered by a pseudointima of granulation tissue, and the luminal surface was lined with a contiguous layer of endothelial cells. Excessive pseudointimal proliferation resulted in shunt occlusion at 3 months in one patient whose shunt was subsequently reopened percutaneously.
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Stock PG, Ascher NL, Chen S, Field J, Bach FH, Sutherland DE. Evidence for direct and indirect pathways in the generation of the alloimmune response against pancreatic islets. Transplantation 1991; 52:704-9. [PMID: 1833868 DOI: 10.1097/00007890-199110000-00023] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The role of the direct and indirect pathways of alloantigen presentation in the generation of the alloimmune response was dissected using the murine mixed lymphocyte-islet coculture system (MLIC). Stimulator DBA/2J (H-2d) pancreatic islet populations consisted of whole islets (MHC class I+, II+) or FACS-purified beta cells (MHC class I+, II-). Responding C57Bl/6 (H-2b) splenocyte populations were either: (1) untreated; (2) depleted of helper T cells with anti-L3T4 monoclonal antibody plus complement; (3) depleted of cytotoxic T lymphocytes with anti-Lyt2 mAb plus complement; or (4) depleted of antigen-presenting cells by passage through a Sephadex G-10 column. Whole islets were capable of stimulating a significant C57Bl/6 anti-DBA cytotoxic T cell response if the responding population was untreated or treated with complement alone. Depletion of responding splenocytes with either anti-Lyt2 or anti-L3T4 mAb plus complement abrogated the generation of allospecific CTL. If the responding splenocyte population was depleted of APCs, the allo-CTL response against whole islets was decreased, but still significant. If, however, the stimulator population consisted of FACS-purified DBA 2J beta cells, APC-depleted C57Bl 6 splenocytes were incapable of generating any CTL response. Adding responder type (C57Bl/6) APCs back to the microwells restored the capacity for both whole islets and purified beta cells to stimulate a strong allo-CTL response. These data demonstrate that both indirect and direct pathways of alloantigen presentation function in the MLIC.
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Freise CE, Clemmings S, Clemens LE, Alan T, Ashby T, Ashby E, Burke EC, Roberts JP, Ascher NL. Demonstration of local immunosuppression with methylprednisolone in the sponge matrix allograft model. Transplantation 1991; 52:318-25. [PMID: 1871806 DOI: 10.1097/00007890-199108000-00026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study evaluated the effect of locally delivered methylprednisolone on the systemic and local immune response in the sponge matrix allograft model. Polyurethane sponges were coated with peritoneal exudate cells from DBA/2 (H-2d) or C57Bl/6 mice (H-2b) and placed subcutaneously in C57BL/6 recipients 24 hr later. Each mouse received both a syngeneic and an allogeneic sponge graft. Local immunosuppression was effected by placement on day 0 of cellulose/matrix pellets containing a preparation of increasing quantity of controlled release MP or by daily intrasponge injection of MP. Local immunosuppression was demonstrated by decreased cytotoxicity on day 12 in the allogeneic sponge receiving MP directly, as compared with the groups that received MP in the opposite syngeneic sponge or no MP. This effect was noted at a specific MP dose (0.5 mg/kg/day). Absolute numbers of precursor cytolytic cells and mature cytolytic cells (determined by limiting dilution analyses) infiltrating the allografts were also decreased in the sponges receiving MP directly, relative to the groups receiving MP in the opposite syngeneic sponge. Maintenance of systemic (in contrast to local) immunity was also demonstrated. Animals treated with local MP into a simultaneously placed syngeneic sponge or in whom no MP was delivered became sensitized to a synchronous DBA/2 sponge and rejected a subsequent DBA/2 skin graft in second-set fashion. Conversely, animals that received local MP into their synchronous DBA/2 sponge rejected a subsequent DBA/2 skin graft or a third-party graft with first-set kinetics. The presence of local MP at the initial graft site prevented the animals from becoming sensitized to the presented alloantigen but did not keep the animal from developing a rejection response to a third-party skin graft with first-set kinetics. It appears that delivery of MP locally to the site of antigen is an effective method to modulate alloreactivity. In addition, the sponge matrix allograft appears to be a useful model for studying local immunosuppression.
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Roberts JP, Ascher NL, Lake J, Capper J, Purohit S, Garovoy M, Lynch R, Ferrell L, Wright T. Graft vs. host disease after liver transplantation in humans: a report of four cases. Hepatology 1991. [PMID: 1860684 DOI: 10.1002/hep.1840140212] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four cases of patients in whom graft vs. host disease developed after liver transplantation are described. The clinical course of each patient was similar with fever, pancytopenia, diarrhea and a skin rash developing 1 or 2 mo after liver transplantation. The clinical diagnosis was made from skin or colon biopsy specimens. Liver dysfunction did not occur in the patients at the time of diagnosis. Extrahepatic donor DNA was identified in the three patients it was tested for. Three patients died from the complications of the disease primarily related to sepsis. The other patient recovered from the graft vs. host disease but died from lymphoproliferative disease.
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Wright TL, Hsu H, Donegan E, Feinstone S, Greenberg H, Read A, Ascher NL, Roberts JP, Lake JR. Hepatitis C virus not found in fulminant non-A, non-B hepatitis. Ann Intern Med 1991; 115:111-2. [PMID: 1647717 DOI: 10.7326/0003-4819-115-2-111] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Roberts JP, Ring E, Lake JR, Sterneck M, Ascher NL. Intrahepatic portocaval shunt for variceal hemorrhage prior to liver transplantation. Transplantation 1991; 52:160-2. [PMID: 1858145 DOI: 10.1097/00007890-199107000-00036] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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145
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Freese DK, Tuchman M, Schwarzenberg SJ, Sharp HL, Rank JM, Bloomer JR, Ascher NL, Payne WD. Early liver transplantation is indicated for tyrosinemia type I. J Pediatr Gastroenterol Nutr 1991; 13:10-5. [PMID: 1919940 DOI: 10.1097/00005176-199107000-00002] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Liver transplantation is now accepted as the treatment of choice for tyrosinemia type I (hereditary tyrosinemia). In an effort to determine whether any factors in these patients would aid in predicting optimal timing of the transplant procedure, we evaluated several clinical, biochemical, and radiographic parameters in five successive patients undergoing liver transplant for tyrosinemia type I at the University of Minnesota. All five patients evidenced prolonged periods of clinical and metabolic stability with dietary therapy and four of five remained stable at the time of evaluation for transplantation. Nevertheless, all five suffered significant and unexpected complications of tyrosinemia prior to the time of liver transplant. Four developed renal stones, two were in liver failure, and one developed a neurologic crisis that left him completely paralyzed. Hepatocellular carcinoma was found in one of the five at transplant. We could identify no clinical, biochemical, or radiographic study that was predictive of the likelihood of significant complications of the disorder. Survival from the transplant procedure itself was 100%. The inability to predict or prevent significant complications of tyrosinemia and the favorable outcome from transplantation lead us to recommend liver transplant for all patients with tyrosinemia type I by 12 months of age.
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Aldape KD, Fox HS, Roberts JP, Ascher NL, Lake JR, Rowley HA. Cladosporium trichoides cerebral phaeohyphomycosis in a liver transplant recipient. Report of a case. Am J Clin Pathol 1991; 95:499-502. [PMID: 2014775 DOI: 10.1093/ajcp/95.4.499] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Cerebral phaeohyphomycosis (also referred to as cerebral chromomycosis), one of the diseases caused by the dematiaceous (black) fungi, is most commonly caused by Cladosporium trichoides (referred to by some as Xylohypha bantiana) and is a rare disease, with 31 culture-proven cases reported to date. Although most cases have occurred in immunocompetent hosts, recent experimental evidence suggests that host immunosuppression may predispose patients to the disease. The authors report a case of fatal cerebral phaeohyphomycosis in a liver transplant patient, the first to occur in a transplant patient of any type, to the best of the authors' knowledge. This case provides support for the hypothesis that immunosuppressed patients may be at increased risk for development of this disease.
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Read AE, Donegan E, Lake J, Ferrell L, Galbraith C, Kuramoto IK, Zeldis JB, Ascher NL, Roberts J, Wright TL. Hepatitis C in patients undergoing liver transplantation. Ann Intern Med 1991; 114:282-4. [PMID: 1846278 DOI: 10.7326/0003-4819-114-4-282] [Citation(s) in RCA: 63] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE To determine the prevalence of antibodies to hepatitis C virus (anti-HCV) among patients undergoing liver transplantation and the relation between anti-HCV and post-transplant hepatitis. DESIGN Retrospective cohort. PATIENTS Serum samples from 128 patients who underwent liver transplantation. Sixty-six patients who had 6 months of follow-up and for whom both pretransplant and post-transplant serum samples were available were included in a study to asses the relation between anti-HCV and post-transplant hepatitis. MEASUREMENTS Sera were tested for anti-HCV using an enzyme-linked immunosorbent assay (ELISA) and, if positive, two confirmatory tests were done. Patients had a biopsy every week until two specimens showed no abnormal findings. MAIN RESULTS Only patients with chronic non-A, non-B hepatitis (15 of 30; 50%), alcoholic cirrhosis (7 of 19; 37%), and chronic hepatitis B infection (3 of 11; 27%) were anti-HCV positive. No patient with another form of chronic liver disease or with acute liver failure due to non-A, non-B hepatitis was anti-HCV positive. After transplantation, loss of anti-HCV was frequent and acquisition rare. Hepatitis developed in the graft in 17% of patients, but the incidence was similar among anti-HCV negative and anti-HCV-positive patients. CONCLUSIONS Hepatitis C virus is a common cause of chronic liver disease in patients requiring liver transplantation, but anti-HCV is rarely found in patients with acute liver failure. Previous HCV infection, based on detection of anti-HCV, is not an independent risk factor for post-transplant hepatitis.
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Burke EC, Martinez OM, Freise CE, McVicar J, Roberts JP, Ascher NL. MHC expression on human hepatocytes before and after isolation. Transplant Proc 1991; 23:1428-9. [PMID: 1989254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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149
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Read AE, Donegan E, Lake J, Ferrell L, Galbraith C, Kuramoto IK, Zeldis JB, Ascher NL, Roberts J, Wright TL. Hepatitis C in liver transplant recipients. Transplant Proc 1991; 23:1504-5. [PMID: 1846471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
HCV infection is commonly found in patients with chronic liver disease undergoing liver transplantation. However, the presence of antibody to HCV does not appear to be associated with the development of hepatitis posttransplant. No other risk factors were identified that appear to predispose patients to development of hepatitis in the posttransplant period, including amount of blood product exposure. The role of immunosuppression in the acquisition and expression of liver disease caused by HCV remains to be determined.
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