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93 results on '"Stief, Christian Georg"'

2. Oncological impact of perioperative blood transfusion in bladder cancer patients undergoing radical cystectomy: Do we need to consider storage time of blood units, donor age, or gender matching?

Author

Ebner, Benedikt, primary, Fleckenstein, Franka, additional, Volz, Yannic, additional, Eismann, Lennert, additional, Hermans, Julian, additional, Buchner, Alexander, additional, Enzinger, Benazir, additional, Weinhold, Philipp, additional, Wichmann, Christian, additional, Stief, Christian Georg, additional, Humpe, Andreas, additional, Pyrgidis, Nikolaos, additional, and Schulz, Gerald Bastian, additional

Published
2023
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3. Oncological impact of perioperative blood transfusion in bladder cancer patients undergoing radical cystectomy: Do we need to consider storage time of blood units, donor age, or gender matching?

Author

Ebner, Benedikt, Fleckenstein, Franka, Volz, Yannic, Eismann, Lennert, Hermans, Julian, Buchner, Alexander, Enzinger, Benazir, Weinhold, Philipp, Wichmann, Christian, Stief, Christian Georg, Humpe, Andreas, Pyrgidis, Nikolaos, and Schulz, Gerald Bastian

Subjects
ILEAL conduit surgery, BLOOD transfusion, BLADDER cancer, RADICALS (Chemistry), UNITS of time, CANCER patients
Abstract

Background: The oncological impact of perioperative blood transfusions (PBTs) of patients undergoing radical cystectomy (RC) because of bladder cancer (BCa) has been a controversial topic discussed in recent years. The main cause for the contradictory findings of existing studies might be the missing consideration of the storage time of red blood cell units (BUs), donor age, and gender matching. Study Design and Methods: We retrospectively analyzed BCa patients who underwent RC in our department between 2004 and 2021. We excluded patients receiving BUs before RC, >10 BUs, or RC in a palliative setting. We assessed the effect of blood donor characteristics and storage time on overall survival (OS) and cancer‐specific survival (CSS) through univariate and multivariable Cox regression analysis. We also performed a propensity score matching with patients who received BUs and patients who did not on a 1:1 ratio. Results: We screened 1692 patients and included 676 patients for the propensity score matching. In the multivariable analysis, PBT was independently associated with worse OS and CSS (p <.001). Postoperative transfusions were associated with better OS (p =.004) and CSS (p =.008) compared to intraoperative or mixed transfusions. However, there was no influence of blood donor age, storage time, or gender matching on prognosis. Discussion: In our study of BCa patients undergoing RC, we demonstrate that PBT, especially if administered intraoperatively, is an independent risk factor for a worse prognosis. However, storage time, donor age, or gender matching did not negatively affect oncological outcomes. Therefore, the specific selection of blood products does not promise any benefits. [ABSTRACT FROM AUTHOR]

Published
2024
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4. A Systematic Review of New Imaging Technologies for Robotic Prostatectomy: From Molecular Imaging to Augmented Reality

Author

Rodler, Severin, primary, Kidess, Marc Anwar, additional, Westhofen, Thilo, additional, Kowalewski, Karl-Friedrich, additional, Belenchon, Ines Rivero, additional, Taratkin, Mark, additional, Puliatti, Stefano, additional, Gómez Rivas, Juan, additional, Veccia, Alessandro, additional, Piazza, Pietro, additional, Checcucci, Enrico, additional, Stief, Christian Georg, additional, and Cacciamani, Giovanni Enrico, additional

Published
2023
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5. Adverse Pathology after Radical Prostatectomy of Patients Eligible for Active Surveillance—A Summary 7 Years after Introducing mpMRI-Guided Biopsy in a Real-World Setting

Author

Ebner, Benedikt, primary, Apfelbeck, Maria, additional, Pyrgidis, Nikolaos, additional, Nellessen, Tobias, additional, Ledderose, Stephan, additional, Pfitzinger, Paulo Leonardo, additional, Volz, Yannic, additional, Berg, Elena, additional, Enzinger, Benazir, additional, Rodler, Severin, additional, Atzler, Michael, additional, Ivanova, Troya, additional, Clevert, Dirk-André, additional, Stief, Christian Georg, additional, and Chaloupka, Michael, additional

Published
2023
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7. An unusual case of struma ovarii

Author

Koehler, Viktoria F, primary, Keller, Patrick, additional, Waldmann, Elisa, additional, Schwenk, Nathalie, additional, Kitzberger, Carolin, additional, Schmohl, Kathrin A, additional, Knösel, Thomas, additional, Stief, Christian Georg, additional, and Spitzweg, Christine, additional

Published
2021
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9. PD24-02 68GA-PSMA PET/CT IMPROVES BIOCHEMICAL RESPONSE AFTER SALVAGE LYMPH NODE DISSECTION FOR NODAL RECURRENCE IN PROSTATE CANCER PATIENTS

Author

Herlemann, Annika, primary, Kretschmer, Alexander, additional, Buchner, Alexander, additional, Karl, Alexander, additional, Tritschler, Stefan, additional, El-Malazi, Lina, additional, Wenter, Vera, additional, Ilhan, Harun, additional, Bartenstein, Peter, additional, Stief, Christian Georg, additional, and Gratzke, Christian, additional

Published
2017
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10. Dosimetry for 177Lu-DKFZ-PSMA-617: a new radiopharmaceutical for the treatment of metastatic prostate cancer

Author

Delker, Andreas, primary, Fendler, Wolfgang Peter, additional, Kratochwil, Clemens, additional, Brunegraf, Anika, additional, Gosewisch, Astrid, additional, Gildehaus, Franz Josef, additional, Tritschler, Stefan, additional, Stief, Christian Georg, additional, Kopka, Klaus, additional, Haberkorn, Uwe, additional, Bartenstein, Peter, additional, and Böning, Guido, additional

Published
2015
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39. Primary Erectile Dysfunction

Author

Stief, Christian Georg, Bähren, Wolfgang, Scherb, Wolfgang, and Gall, Helmut

Abstract

We evaluated 67 patients 18 to 60 years old (mean age 28.5 years) with primary erectile dysfunction (absence of full sustained erections since early childhood or puberty) using a multidisciplinary approach. Organic causes of the erectile dysfunction were found in 57 of the 67 patients (85 per cent): 12 (18 per cent) had neurological, 35 (52 per cent) arteriogenic and 35 (52 per cent) venogenic abnormalities. Psychogenic factors were diagnosed in 11 patients (16 per cent), while in 4 (6 per cent) a classification was not possible. Concomitant psychogenic abnormalities were found in 39 of the 57 patients (68 per cent) with organic primary erectile dysfunction. Our results suggest that primary erectile dysfunction is caused mainly by organic factors. However, for successful therapy the frequent secondary psychogenic abnormalities must be considered.

Published
1989
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