Publications by authors named "John B Sorensen"

Cardiac surgery and liver transplantation (LT) are rarely performed at the same time, because of the potential risks of coupling two such complex surgical procedures [1-3]. This combined surgery is typically reserved for patients with structural heart disease, including multivessel obstructive coronary artery disease and severe valvular disease with heart failure and end-stage liver disease, in whom the untreated organ may decompensate if only one organ is addressed [4]. Combined aortic valve replacement (AVR) and LT is the rarest of such combined surgery, with only ten cases published previously.

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Objectives: The benefit of a solid-organ transplant experience during general surgical training has been questioned recently. In 2008, in response to an American Board of Surgery (ABS) directive, a survey was conducted by the Association of Program Directors in Surgery (APDS) in coordination with the American Society of Transplant Surgeons (ASTS) to determine the perceived value of a transplant surgery rotation to program directors and residents. With the aim of providing additional insight, we conducted a separate study, independent of the ABS and ASTS, to ascertain resident perceptions regarding the specific skill sets that they acquire during their transplant surgery rotations and their applicability to other surgical subspecialties.

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Current liver allocation policy in the United States grants liver transplant candidates with stage T2 hepatocellular carcinoma (HCC) a priority Model for End-Stage Liver Disease (MELD) score of 22, regardless of age. Because advanced age may portend an increase in all-cause mortality after transplantation for any diagnosis, the aim of this study was to examine overall posttransplant survival in elderly patients with HCC versus younger cohorts. Based on Organ Procurement and Transplantation Network data, Kaplan-Meier 5-year survival rates were compared.

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Background And Aims: The aim of this retrospective study is to assess the impact of calcineurin inhibitors on hepatitis C virus recurrence following liver transplantation.

Methods: A total of 396 patients underwent liver transplantation for hepatitis C virus-induced liver disease between 1991 and 2005 at a single center. We examined the pre- and post-operative characteristics of patients who received either cyclosporine (n = 126) or tacrolimus (n = 270) as maintenance immunosuppression.

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Caroli's disease (including Caroli's syndrome) is a rare autosomal recessive disorder of the liver characterized by diffuse cystic dilatation of the intrahepatic bile ducts. The disease may present at any age and is characterized by recurrent episodes of biliary obstruction, cholangitis, hepaticolithiasis, and liver abscesses. Caroli's syndrome is further associated with congenital hepatic fibrosis and portal hypertension.

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Aim: The aim of this study is to clarify the association between hepatitis C virus (HCV) infection and post-transplant lymphoproliferative disease (PTLD) in the liver allograft.

Methods: Of the 933 adults who underwent liver transplantation (LT) between 1990 and 2005, 10 patients developed PTLD. Seven of the 10 patients that were HCV(+) (group 1) were compared with three HCV-negative recipients (group 2).

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Purpose: Hepatitis C (HCV) is the most common liver disease in patients transplanted with hepatocellular carcinoma (HCC) in the West. We examined predictors of HCC recurrence in liver transplant recipients with HCV.

Methods: From 1997 to 2006, 53 patients with HCC and HCV underwent liver transplantation.

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Liver transplantation for cholangiocarcinoma (CCA) remains a controversial subject. More than 15 years after, a novel protocol combining neoadjuvant chemoradiation and orthotopic liver transplantation was first used in patients with unresectable hilar CCAs, these methods have yet to reach broad application. Results have confirmed that this approach leads to significantly lower recurrence rates and higher long-term survival rates than other existing treatment modalities.

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Authors evaluated the impact of computerized alerts on the quality of outpatient laboratory monitoring for transplant patients. For 356 outpatient liver transplant patients managed at LDS Hospital, Salt Lake City, this observational study compared traditional laboratory result reporting, using faxes and printouts, to computerized alerts implemented in 2004. Study alerts within the electronic health record notified clinicians of new results and overdue new orders for creatinine tests and immunosuppression drug levels.

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Clinical information concerning transplant patients is voluminous and difficult to manage using paper records. A system analysis was performed to assess information system needs of the liver, kidney, and pancreas transplant program at LDS Hospital in Salt Lake City, Utah. After evaluating workflow, decision support needs, and requirements, we designed and implemented an extendable information system to support care following liver transplantation.

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The organ procurement organization (OPO)-based non-directed living kidney donation programme was developed to decrease wait times for kidney transplants, and to meet the community's desire for altruistic living donation. Community awareness was encouraged through information about non-directed living kidney donation on the state donor registry Web site, and through the media. The OPO received all inquiries and responded with phone calls, e-mails, printed information, medical/social history questionnaires, interviews, and referrals to the transplant centres.

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Laboratory results provide necessary information for the management of ambulatory patients. To realize the benefits of an electronic health record (EHR) and coded laboratory data (e.g.

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Objective: To develop a model to store information in an electronic medical record (EMR) for the management of transplant patients. The model for storing donor information must be designed to allow clinicians to access donor information from the transplant recipient's record and to allow donor data to be stored without needlessly proliferating new Logical Observation Identifier Names and Codes (LOINC) codes for already-coded laboratory tests.

Design: Information required to manage transplant patients requires the use of a donor's medical information while caring for the transplant patient.

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Information required to manage transplant patients and donors is complex, voluminous and requires the reporting and use of one person's medical information within another person's record. One strategy using a vocabulary model (i.e.

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