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Project Realization Scheduling and its Multi Criteria Evaluation

100%

Witkowski T. , Antczak P. , Antczak A.

Foundations of Management

2009

tom 1

nr 2

25-44

The paper focuses on project scheduling classification issues according to the type of constraints and optimization directions. Special attention was paid to production scheduling, presenting the basic issues in relation with product flow organizational criterion. Open-cluster issue was formulated and analyzed with the use of modern heuristics. Solution was evaluated with multiple criteria, mainly on the basis of time characteristics. Production process flow relations, in coordinates determined by operation sequence at particular workplaces, as well as the production type factor were presented.

1000 Liver Transplantations at the Department of General, Transplant and Liver Surgery, Medical University of Warsaw - Analysis of Indications and Results

23%

Krawczyk M. , Grąt M. , Barski K. , Ligocka J. , Antczak A. , Kornasiewicz O. , Skalski M. , Patkowski W. , Nyckowski P. , Zieniewicz K. , Grzelak I. , Pawlak J. , Alsharabi A. , Wróblewski T. , Paluszkiewicz R. , Najnigier B. , Dudek K. , Remiszewski P. , Smoter P. , Grodzicki M. , Korba M. , Kotulski M. , Cieślak B. , Kalinowski P. , Gierej P. , Frączek M. , Rdzanek Ł. , Stankiewicz R. , Kobryń K. , Nazarewski Ł. , Leonowicz D. , Urban-Lechowicz M. , Skwarek A. , Giercuszkiewicz D. , Paczkowska A. , Piwowarska J. , Gelo R. , Andruszkiewicz P. , Brudkowska A. , Andrzejewska R. , Niewiński G. , Kilińska B. , Zarzycka A. , Nowak R. , Kosiński C. , Korta T. , Ołdakowska-Jedynak U. , Sańko-Resmer J. , Foroncewicz B. , Ziółkowski J. , Mucha K. , Senatorski G. , Pączek L. , Habior A. , Lechowicz R. , Polański S. , Leowska E. , Pacho R. , Andrzejewska M. , Rowiński O. , Kozieł S. , Żurakowski J. , Ziarkiewicz-Wróblewska B. , Górnicka B. , Hevelke P. , Michałowicz B. , Karwowski A. , Szczerbań J.

2012

tom 84

nr 6

304-312

The aim of the study was to analyze indications and results of the first one thousand liver transplantations at Chair and Clinic of General, Transplantation and Liver Surgery, Medical University of Warsaw.Material and methods. Data from 1000 transplantations (944 patients) performed at Chair and Clinic of General, Transplantation and Liver Surgery between 1994 and 2011 were analyzed retrospectively. These included 943 first transplantations and 55 retransplantations and 2 re-retransplantations. Frequency of particular indications for first transplantation and retransplantations was established. Perioperative mortality was defined as death within 30 days after the transplantation. Kaplan-Meier survival analysis was used to estimate 5-year patient and graft survival.Results. The most common indications for first transplantation included: liver failure caused by hepatitis C infection (27.8%) and hepatitis B infection (18%) and alcoholic liver disease (17.7%). Early (< 6 months) and late (> 6 months) retransplantations were dominated by hepatic artery thrombosis (54.3%) and recurrence of the underlying disease (45%). Perioperative mortality rate was 8.9% for first transplantations and 34.5% for retransplantations. Five-year patient and graft survival rate was 74.3% and 71%, respectively, after first transplantations and 54.7% and 52.9%, respectively, after retransplantations.Conclusions. Development of liver transplantation program provided more than 1000 transplantations and excellent long-term results. Liver failure caused by hepatitis C and B infections remains the most common cause of liver transplantation and structure of other indications is consistent with European data.