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Article ; Online: Constructive conflicts of interest: an alternative perspective from industry?

Wysocki, Marc

2018 Volume 45, Issue 5, Page(s) 722–724

MeSH term(s)	Biomedical Research ; Conflict of Interest ; Critical Care ; Humans
Language	English
Publishing date	2018-12-19
Publishing country	United States
Document type	Editorial ; Comment
ZDB-ID	80387-x
ISSN	1432-1238 ; 0340-0964 ; 0342-4642 ; 0935-1701
ISSN (online)	1432-1238
ISSN	0340-0964 ; 0342-4642 ; 0935-1701
DOI	10.1007/s00134-018-5505-1
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Article ; Online: Splenectomy and tumor size are risk factors for serious perioperative morbidity of laparoscopic distal pancreatectomies.

Wysocki, Michal / Borys, Maciej / Gałązka, Krystyna / Stranek, Maciej / Budzyński, Andrzej

Polski przeglad chirurgiczny

2024 Volume 96, Page(s) 6–12

Abstract: ... Introduction: ... The determinants influencing the risk for complications of laparoscopic distal pancreatectomies (LDP) are not yet fully defined, thus we aimed to determine risk factors for serious perioperative morbidity after LDP with spleen ... ...

Abstract	Introduction: The determinants influencing the risk for complications of laparoscopic distal pancreatectomies (LDP) are not yet fully defined, thus we aimed to determine risk factors for serious perioperative morbidity after LDP with spleen preservation, LDP and radical antegrade modular pancreatosplenectomy for adenocarcinoma of the body and tail of the pancreas (RAMPS). Material and methods: Retrospective cohort study of consecutive patients that underwent LDP between January 2019 and December 2022. The study group included cases of serious perioperative morbidity (III-V grades in Clavien-Dindo classification) during a 30-day period after operation. The control group consisted of patients without serious perioperative morbidity. As many as 142 patients were included in the study. Results: Serious perioperative morbidity was found in 33 (23.24%) operated patients, while mortality in 3 cases (2.11%). Serious perioperative morbidity after LDP with spleen preservation was found in 9/68 (13.2%) patients (27.3% of the perioperative morbidity group). Thirteen out of 51 patients, i.e. 25.5%, after LDP with splenectomy were included in the perioperative morbidity group (39.4%). Serious perioperative morbidity after RAMPS was found in 11/23 (47.8%) patients (33.3% of the perioperative morbidity group). In multivariate logistic regression, the need for splenectomy during pancreatectomy (OR 3.66, 95%CI 1.20-11.18) and tumor above 28 millimeters in size (OR 3.01, 95%CI 1.19-9.59) were independent risk factors for serious perioperative morbidity. Conclusions: The need for splenectomy during laparoscopic distal pancreatectomy and tumor size above 28 millimeters were independent risk factors for serious perioperative morbidity after laparoscopic distal pancreatectomies. .
MeSH term(s)	Humans ; Splenectomy/adverse effects ; Pancreatectomy/adverse effects ; Pancreatic Neoplasms/pathology ; Retrospective Studies ; Laparoscopy/adverse effects ; Treatment Outcome
Language	English
Publishing date	2024-02-13
Publishing country	Poland
Document type	Journal Article
ZDB-ID	128732-1
ISSN	2299-2847 ; 0032-373X
ISSN (online)	2299-2847
ISSN	0032-373X
DOI	10.5604/01.3001.0053.9292
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Article ; Online: Laparoscopic radical antegrade modular pancreatosplenectomy (RAMPS) for adenocarcinoma of the body and tail of the pancreas - technical considerations with analysis of surgical outcomes.

Borys, Maciej / Wysocki, Michał / Gałązka, Krystyna / Stanek, Maciej / Budzyński, Andrzej

Langenbeck's archives of surgery

2024 Volume 409, Issue 1, Page(s) 74

Abstract: Purpose: The aim of this study was to establish whether laparoscopic RAMPS (L-RAMPS) is a safe procedure with better oncological outcomes compared to laparoscopic distal pancreatectomy (LDP) with splenectomy among patients with distal pancreatic ductal ... ...

Abstract	Purpose: The aim of this study was to establish whether laparoscopic RAMPS (L-RAMPS) is a safe procedure with better oncological outcomes compared to laparoscopic distal pancreatectomy (LDP) with splenectomy among patients with distal pancreatic ductal adenocarcinoma (PDAC). Methods: This is a retrospective study performed on consecutive patients who underwent L-RAMPS and LDP with splenectomy for resectable or borderline resectable PDAC of the body and tail. In this paper, we presented our technique of laparoscopic RAMPS and analyzed intraoperative and perioperative complications, oncological efficacy, and long-term survival. Results: The study included 12 patients in the L-RAMPS group and 13 patients in the LDP with splenectomy. L-RAMPS was associated with significantly higher rates of R0 resection (91.7% vs. 69.2%, p = 0.027). There were no differences between the L-RAMPS and LDP with splenectomy groups in intraoperative blood loss (400 mL vs 400 mL, p = 0.783) and median operative time (250 min vs 220 min, p = 0.785). No differences were found in terms of perioperative complications, including the incidence of pancreatic fistula. Conclusion: Laparoscopic RAMPS is a feasible and safe procedure. It provides higher radicality as compared with LDP with splenectomy, without increasing the risk of complications. Further studies are necessary to evaluate long-term outcomes.
MeSH term(s)	Humans ; Pancreatectomy/methods ; Retrospective Studies ; Pancreas/surgery ; Pancreatic Neoplasms/pathology ; Laparoscopy/methods ; Splenectomy/methods ; Adenocarcinoma ; Treatment Outcome
Language	English
Publishing date	2024-02-24
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1423681-3
ISSN	1435-2451 ; 1435-2443
ISSN (online)	1435-2451
ISSN	1435-2443
DOI	10.1007/s00423-024-03265-4
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Article ; Online: Artificial Neural Networks Performance in WIG20 Index Options Pricing.

Wysocki, Maciej / Ślepaczuk, Robert

Entropy (Basel, Switzerland)

2021 Volume 24, Issue 1

Abstract: In this paper, the performance of artificial neural networks in option pricing was analyzed and compared with the results obtained from the Black-Scholes-Merton model, based on the historical volatility. The results were compared based on various error ... ...

Abstract	In this paper, the performance of artificial neural networks in option pricing was analyzed and compared with the results obtained from the Black-Scholes-Merton model, based on the historical volatility. The results were compared based on various error metrics calculated separately between three moneyness ratios. The market data-driven approach was taken to train and test the neural network on the real-world options data from 2009 to 2019, quoted on the Warsaw Stock Exchange. The artificial neural network did not provide more accurate option prices, even though its hyperparameters were properly tuned. The Black-Scholes-Merton model turned out to be more precise and robust to various market conditions. In addition, the bias of the forecasts obtained from the neural network differed significantly between moneyness states. This study provides an initial insight into the application of deep learning methods to pricing options in emerging markets with low liquidity and high volatility.
Language	English
Publishing date	2021-12-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2014734-X
ISSN	1099-4300 ; 1099-4300
ISSN (online)	1099-4300
ISSN	1099-4300
DOI	10.3390/e24010035
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Article ; Online: Minimization of preventable drug waste through use of a vial combination calculator tool.

Song, Ju Young Jason / Wysocki, Mark / Chen, Franklin / Martinez, Dylcia / Cabie, Eric

American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists

2024

Abstract: Disclaimer: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and ...

Abstract	Disclaimer: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. Purpose: This project aimed to determine whether a supportive calculator that automates the vial selection process might offer a practical and efficient method of reducing pharmaceutical expenditures through minimizing preventable drug waste in outpatient pharmacy settings from fiscal year (FY) 2021 to FY 2023. Summary: Drug waste is a substantial target of cost-saving efforts in the areas of oncology and autoimmune therapy, which involve use of a vast number of high-cost medications packaged in single-dose vials of varying strength. To facilitate selection of the optimal combination of medication vials and thereby minimize preventable drug waste, a Microsoft Excel-based calculator was developed for use by staff of a large oncology pharmacy network. Twenty-three high-cost chemotherapy and monoclonal antibody medications were identified as initial targets for the drug waste prevention initiative. After dissemination and implementation of the calculator and provision of monthly pharmacy staff education, the dollar value of preventable drug waste and the number of suboptimal vial combination selections were reduced by 51% ($412,300) and 54% (315 selections), respectively, in fiscal year 2022 and further reduced by 46% ($183,400) and 27% (71 selections), respectively, in fiscal year 2023. Conclusion: After implementation of an automated vial selection tool, preventable drug waste and the quantity of suboptimal vial combination selections were markedly reduced across 11 outpatient compounding pharmacies.
Language	English
Publishing date	2024-01-31
Publishing country	England
Document type	Journal Article
ZDB-ID	1224627-x
ISSN	1535-2900 ; 1079-2082
ISSN (online)	1535-2900
ISSN	1079-2082
DOI	10.1093/ajhp/zxae023
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Article ; Online: Ileal pouch adenocarcinoma after restorative proctocolectomy for familial adenomatous polyposis.

Krokowicz, Łukasz / Szmyt, Krzysztof / Borejsza-Wysocki, Maciej / Paszkowski, Jacek / Banasiewicz, Tomasz / Bobkiewicz, Adam

Polish archives of internal medicine

2024

Language	English
Publishing date	2024-04-04
Publishing country	Poland
Document type	Journal Article
ZDB-ID	123500-x
ISSN	1897-9483 ; 0032-3772
ISSN (online)	1897-9483
ISSN	0032-3772
DOI	10.20452/pamw.16722
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Article: Laparoscopic pancreatectomies for borderline tumors with major venous resections.

Borys, Maciej / Wysocki, Michał / Budzyński, Andrzej

Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques

2022 Volume 17, Issue 4, Page(s) 680–687

Abstract: Introduction: Resection of the portal vein or superior mesenteric vein infiltrated by the pancreatic cancer is currently a standard during open pancreatic surgery for cancer. When found intraoperatively it often leads to conversion. Nowadays, research ... ...

Abstract	Introduction: Resection of the portal vein or superior mesenteric vein infiltrated by the pancreatic cancer is currently a standard during open pancreatic surgery for cancer. When found intraoperatively it often leads to conversion. Nowadays, research data for laparoscopic pancreatectomies with major venous resections and reconstructions are scarce. Aim: To present our own results of laparoscopic total pancreatectomies, pancreaticoduodenectomy and distal pancreatectomies (RAMPS) performed for cancer with major venous resection and reconstructions of the portal system. Material and methods: This is a retrospective study of our own clinical material of consecutive patients treated for adenocarcinoma of pancreas who underwent laparoscopic pancreatectomies with major venous resection and reconstruction in 2020 and 2021. Results: The study included 6 females and 2 males in median age of 68 years (56-77). 6 tumors were located in the pancreatic head, 1 in the pancreatic neck and 1 in the pancreatic body. Surgical procedures included 5 total pancreatectomies, 2 RAMPS and 1 Whipple pancreaticoduodenectomy. There were no conversions. Median time of vascular closure was 55.5 (41-70) min. Median blood loss was 500 (250-900) ml. Median length of hospital stay (LOS) was 18.5 (11-34) days. We observed no complications related directly to vascular resection. Conclusions: Laparoscopic approach for pancreatectomies with portal or superior mesenteric vein resections could be a safe and feasible approach in the hands of an experienced surgeon.
Language	English
Publishing date	2022-09-07
Publishing country	Poland
Document type	Journal Article
ZDB-ID	2596147-0
ISSN	2299-0054 ; 1895-4588
ISSN (online)	2299-0054
ISSN	1895-4588
DOI	10.5114/wiitm.2022.116705
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Article ; Online: Recognition of Human Activities Using Depth Maps and the Viewpoint Feature Histogram Descriptor.

Sidor, Kamil / Wysocki, Marian

Sensors (Basel, Switzerland)

2020 Volume 20, Issue 10

Abstract: In this paper we propose a way of using depth maps transformed into 3D point clouds to classify human activities. The activities are described as time sequences of feature vectors based on the Viewpoint Feature Histogram descriptor (VFH) computed using ... ...

Abstract	In this paper we propose a way of using depth maps transformed into 3D point clouds to classify human activities. The activities are described as time sequences of feature vectors based on the Viewpoint Feature Histogram descriptor (VFH) computed using the Point Cloud Library. Recognition is performed by two types of classifiers: (i) k-NN nearest neighbors' classifier with Dynamic Time Warping measure, (ii) bidirectional long short-term memory (BiLSTM) deep learning networks. Reduction of classification time for the k-NN by introducing a two tier model and improvement of BiLSTM-based classification via transfer learning and combining multiple networks by fuzzy integral are discussed. Our classification results obtained on two representative datasets: University of Texas at Dallas Multimodal Human Action Dataset and Mining Software Repositories Action 3D Dataset are comparable or better than the current state of the art.
MeSH term(s)	Datasets as Topic ; Deep Learning ; Human Activities ; Humans ; Imaging, Three-Dimensional
Language	English
Publishing date	2020-05-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s20102940
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Article ; Online: Recognition of Signed Expressions in an Experimental System Supporting Deaf Clients in the City Office.

Kapuscinski, Tomasz / Wysocki, Marian

Sensors (Basel, Switzerland)

2020 Volume 20, Issue 8

Abstract: The paper addresses the recognition of dynamic Polish Sign Language expressions in an experimental system supporting deaf people in an office when applying for an ID card. A method of processing a continuous stream of RGB-D data and a feature vector are ... ...

Abstract	The paper addresses the recognition of dynamic Polish Sign Language expressions in an experimental system supporting deaf people in an office when applying for an ID card. A method of processing a continuous stream of RGB-D data and a feature vector are proposed. The classification is carried out using the k-nearest neighbors algorithm with dynamic time warping, hidden Markov models, and bidirectional long short-term memory. The leave-one-subject-out protocol is used for the dataset containing 121 Polish Sign Language sentences performed five times by four deaf people. A data augmentation method is also proposed and tested. Preliminary observations and conclusions from the use of the system in a laboratory, as well as in real conditions with an experimental installation in the Office of Civil Affairs are given.
MeSH term(s)	Algorithms ; Deafness/pathology ; Humans ; Markov Chains ; Pattern Recognition, Automated/methods ; Sign Language
Language	English
Publishing date	2020-04-13
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s20082190
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Article ; Online: The outcomes of Re-Redo bariatric surgery-results from multicenter Polish Revision Obesity Surgery Study (PROSS).

Łabul, Michał / Wysocki, Michał / Małczak, Piotr / Matyja, Maciej / Dowgiałło-Gornowicz, Natalia / Lech, Paweł / Szymański, Michał / Major, Piotr

Scientific reports

2024 Volume 14, Issue 1, Page(s) 2699

Abstract: The increasing prevalence of bariatric surgery has resulted in a rise in the number of redo procedures as well. While redo bariatric surgery has demonstrated its effectiveness, there is still a subset of patients who may not derive any benefits from it. ... ...

Abstract	The increasing prevalence of bariatric surgery has resulted in a rise in the number of redo procedures as well. While redo bariatric surgery has demonstrated its effectiveness, there is still a subset of patients who may not derive any benefits from it. This poses a significant challenge for bariatric surgeons, especially when there is a lack of clear guidelines. The primary objective of this study is to evaluate the outcomes of patients who underwent Re-Redo bariatric surgery. We conducted a retrospective cohort study on a group of 799 patients who underwent redo bariatric surgery between 2010 and 2020. Among these patients, 20 individuals underwent a second elective redo bariatric surgery (Re-Redo) because of weight regain (15 patients) or insufficient weight loss, i.e. < 50% EWL (5 patients). Mean BMI before Re-Redo surgery was 38.8 ± 4.9 kg/m
MeSH term(s)	Humans ; Adult ; Middle Aged ; Obesity, Morbid/surgery ; Retrospective Studies ; Poland ; Obesity/surgery ; Bariatric Surgery/adverse effects ; Treatment Outcome ; Reoperation ; Gastrectomy/methods ; Laparoscopy ; Gastric Bypass/methods
Language	English
Publishing date	2024-02-01
Publishing country	England
Document type	Multicenter Study ; Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-52817-7
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