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  1. Article ; Online: Bacterial cellulose as a promising material for pulmonary valve prostheses: In vivo study in a sheep model.

    Siondalski, Piotr / Kołaczkowska, Magdalena / Bieńkowski, Michał / Pęksa, Rafał / Kowalik, Maciej M / Dawidowska, Kinga / Vandendriessche, Katrien / Meuris, Bart

    Journal of biomedical materials research. Part B, Applied biomaterials

    2024  Volume 112, Issue 1, Page(s) e35355

    Abstract: Objectives: Currently, no consensus exists regarding the most durable prosthesis for pulmonary valve replacement. Bacterial cellulose is a resistant, nonbiodegradable, nonpyrogenic bioimplant with low hemolysis and clotting properties. We hypothesized ... ...

    Abstract Objectives: Currently, no consensus exists regarding the most durable prosthesis for pulmonary valve replacement. Bacterial cellulose is a resistant, nonbiodegradable, nonpyrogenic bioimplant with low hemolysis and clotting properties. We hypothesized that bacterial cellulose heart valve prostheses could be an attractive alternative for pulmonary valve replacement.
    Methods: We conducted a large animal model experiment in three adult sheep. The animals underwent open-heart surgery and cardiopulmonary bypass for bacterial cellulose conduit implantation in the pulmonary position. The sheep were followed for seven months, and clinical and laboratory parameters were analyzed. Echocardiographic evaluations were performed at 3 and 7 months. After seven months, the sheep were sacrificed and an autopsy was performed. The explanted conduits were radiologically and histopathologically analyzed.
    Results: All sheep survived the operation, showing good recovery and normal health status; no adverse events were noted during the 7-month postoperative follow-up. Interval laboratory findings were normal with no signs of hemolysis or infection. Echocardiographic analysis after 7 months revealed a normal mean pressure gradient with excellent cusp motion and coaptation; a trace of regurgitation was found in two sheep. X-ray analysis of the explanted conduits revealed no structural defects in the leaflets with minimal calcification. Histological examination showed slight thickening of the conduit by pannus formation. No material failure, no calcification inside the material, and only minor calcification extrinsic to the matrix were observed.
    Conclusions: This pilot study provides evidence that bacterial cellulose may be suitable for pulmonary valve prostheses and surgical pulmonary artery plasty. Further studies on the high pressure side of the left heart are needed.
    MeSH term(s) Animals ; Sheep ; Heart Valve Prosthesis ; Hemolysis ; Pilot Projects ; Pulmonary Valve/surgery ; Cellulose/pharmacology
    Chemical Substances Cellulose (9004-34-6)
    Language English
    Publishing date 2024-01-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2099992-6
    ISSN 1552-4981 ; 1552-4973 ; 0021-9304
    ISSN (online) 1552-4981
    ISSN 1552-4973 ; 0021-9304
    DOI 10.1002/jbm.b.35355
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  2. Article: The Levels of Cortisol and Selected Biochemical Parameters in Red Deer Harvested during Stalking Hunts.

    Dziki-Michalska, Katarzyna / Tajchman, Katarzyna / Kowalik, Sylwester / Wójcik, Maciej

    Animals : an open access journal from MDPI

    2024  Volume 14, Issue 7

    Abstract: As a reactive species, the red deer is sensitive to both negative exogenous and endogenous stimuli. An intensive hunting period may have a particularly negative impact on game animals. The aim of this study was to determine the plasma cortisol level and ... ...

    Abstract As a reactive species, the red deer is sensitive to both negative exogenous and endogenous stimuli. An intensive hunting period may have a particularly negative impact on game animals. The aim of this study was to determine the plasma cortisol level and biochemical parameters in 25 wild red deer (
    Language English
    Publishing date 2024-04-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani14071108
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  3. Article ; Online: COVID-19 - Toward a comprehensive understanding of the disease.

    Kowalik, Maciej M / Trzonkowski, Piotr / Łasińska-Kowara, Magdalena / Mital, Andrzej / Smiatacz, Tomasz / Jaguszewski, Miłosz

    Cardiology journal

    2020  Volume 27, Issue 2, Page(s) 99–114

    Abstract: The evidence on the pathophysiology of the novel coronavirus SARS-CoV-2 infection is rapidly growing. Understanding why some patients suffering from COVID-19 are getting so sick, while others are not, has become an informal imperative for researchers and ...

    Abstract The evidence on the pathophysiology of the novel coronavirus SARS-CoV-2 infection is rapidly growing. Understanding why some patients suffering from COVID-19 are getting so sick, while others are not, has become an informal imperative for researchers and clinicians around the globe. The answer to this question would allow rationalizing the fear surrounding this pandemic. Understanding of the pathophysiology of COVID-19 relies on an understanding of interplaying mechanisms, including SARS-CoV-2 virulence, human immune response, and complex inflammatory reactions with coagulation playing a major role. An interplay with bacterial co-infections, as well as the vascular system and microcirculation affected throughout the body should also be examined. More importantly, a compre-hensive understanding of pathological mechanisms of COVID-19 will increase the efficacy of therapy and decrease mortality. Herewith, presented is the current state of knowledge on COVID-19: beginning from the virus, its transmission, and mechanisms of entry into the human body, through the pathological effects on the cellular level, up to immunological reaction, systemic and organ presentation. Last but not least, currently available and possible future therapeutic and diagnostic options are briefly commented on.
    MeSH term(s) Antiviral Agents/therapeutic use ; Betacoronavirus/drug effects ; Betacoronavirus/immunology ; Betacoronavirus/pathogenicity ; COVID-19 ; COVID-19 Vaccines ; Coronavirus Infections/drug therapy ; Coronavirus Infections/immunology ; Coronavirus Infections/prevention & control ; Coronavirus Infections/transmission ; Coronavirus Infections/virology ; Host-Pathogen Interactions ; Humans ; Pandemics ; Pneumonia, Viral/drug therapy ; Pneumonia, Viral/immunology ; Pneumonia, Viral/transmission ; Pneumonia, Viral/virology ; Prognosis ; Risk Factors ; SARS-CoV-2 ; Severity of Illness Index ; Viral Vaccines/therapeutic use ; Virulence ; Virus Internalization ; COVID-19 Drug Treatment
    Chemical Substances Antiviral Agents ; COVID-19 Vaccines ; Viral Vaccines
    Keywords covid19
    Language English
    Publishing date 2020-05-07
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2488680-4
    ISSN 1898-018X ; 1897-5593
    ISSN (online) 1898-018X
    ISSN 1897-5593
    DOI 10.5603/CJ.a2020.0065
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  4. Article: Mouth-to-tracheostomy tube ventilation in an emergency situation.

    Kowalik, Maciej M

    Resuscitation

    2007  Volume 73, Issue 2, Page(s) 322–323

    MeSH term(s) Adult ; Cardiopulmonary Resuscitation ; Emergencies ; Female ; Humans ; Mouth ; Tracheostomy
    Language English
    Publishing date 2007-05
    Publishing country Ireland
    Document type Case Reports ; Comment ; Letter
    ZDB-ID 189901-6
    ISSN 1873-1570 ; 0300-9572
    ISSN (online) 1873-1570
    ISSN 0300-9572
    DOI 10.1016/j.resuscitation.2006.11.024
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  5. Article ; Online: Patient-Reported Quality of Life, Depression, Anxiety, and Physical Activity in Patients Receiving an Implantable Cardioverter-Defibrillator for Primary versus Secondary Prevention: A Single-Centre, Prospective, Observational Cohort Study.

    Krauze, Natasza / Smolis-Bąk, Edyta / Kowalik, Ilona / Sterliński, Maciej

    International journal of environmental research and public health

    2022  Volume 19, Issue 19

    Abstract: Study objectives: The aim of the study was to evaluate of the quality of life, depression, anxiety levels, and physical activity in the groups after the implantation of an ICD or CRT-D.: Methods: All subjects (111 CHF patients) underwent tests to ... ...

    Abstract Study objectives: The aim of the study was to evaluate of the quality of life, depression, anxiety levels, and physical activity in the groups after the implantation of an ICD or CRT-D.
    Methods: All subjects (111 CHF patients) underwent tests to assess the quality of life (NHP), the level of physical activity (IPAQ), the level of perceived stress (PSS), and the incidence of depression (BDI).
    Results: After the implantation, physical activity (PA) of the patients from the primary prevention (PP) group remains unchanged, whereas in the secondary prevention (SP) group, it decreases noticeably. Physical activity is lower in the SP group in comparison with the PP group. There are no statistically significant differences in the level of depression. The scores in the second part of the NHP questionnaire indicate that the SP group significantly more often declare problems with housework and with social life than the PP group.
    Conclusions: 1. The type of prevention does not have an influence on the level of anxiety, stress, or depression. 2. The patients after implantation as SP are physically less active; lower PA is associated additionally with the higher NYHA class and chronic kidney disease. 3. The quality of life of the patients from SP group is at a lower level than patients from PP group.
    MeSH term(s) Anxiety/epidemiology ; Anxiety/etiology ; Defibrillators, Implantable ; Depression/epidemiology ; Depression/etiology ; Exercise ; Humans ; Patient Reported Outcome Measures ; Primary Prevention ; Prospective Studies ; Quality of Life
    Language English
    Publishing date 2022-10-07
    Publishing country Switzerland
    Document type Journal Article ; Observational Study
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph191912830
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  6. Article ; Online: Preliminary results from the Polish Infective Endocarditis Registry (POL-ENDO): Time to change clinical practice?

    Orzech, Jakub W / Zatorska, Karina / Grabowski, Maciej / Miłkowska, Małgorzata / Jaworska-Wilczyńska, Maria / Kowalik, Ilona / Kukulski, Tomasz / Lesiak, Maciej / Surdacki, Andrzej / Hryniewiecki, Tomasz

    Kardiologia polska

    2024  

    Language English
    Publishing date 2024-04-22
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 411492-9
    ISSN 1897-4279 ; 0022-9032
    ISSN (online) 1897-4279
    ISSN 0022-9032
    DOI 10.33963/v.phj.100275
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  7. Article ; Online: Analysis of complications in transfemoral transcatheter aortic valve implantation: a single-center study.

    Pyłko, Anna / Dąbrowski, Maciej / Kowalik, Ilona / Chmielak, Zbigniew / Kukuła, Krzysztof / Wolny, Rafał / Kwieciński, Jacek / Stokłosa, Patrycjusz / Grabowski, Maciej / Michałowska, Ilona / Kuśmierski, Krzysztof / Witkowski, Adam

    Polish archives of internal medicine

    2024  Volume 134, Issue 4

    Abstract: Introduction: Transfemoral access is a prevailing approach for transcatheter aortic valve implantation (TAVI) in contemporary practice, with a shift from surgical arteriotomy to a percutaneous arterial approach.: Objectives: This study assessed long- ...

    Abstract Introduction: Transfemoral access is a prevailing approach for transcatheter aortic valve implantation (TAVI) in contemporary practice, with a shift from surgical arteriotomy to a percutaneous arterial approach.
    Objectives: This study assessed long- and short‑term mortality, along with Valve Academic Research Consortium-2-defined complications in percutaneous transfemoral approach (PTA) TAVI. Furthermore, it explored the impact of a learning curve on procedural outcomes.
    Patients and methods: The study included 600 patients undergoing PTA TAVI at the National Institute of Cardiology, Warsaw, Poland, from January 2009 to September 2020. Retrospective data comparison involved 2 groups: early experience (first 200 patients) and late experience (next 400 patients).
    Results: The primary end point (composite of life‑threatening bleeding, major vascular complication, or death at 30 days) occurred less often in the late experience group (28% vs 17.5%; P = 0.003). The late experience group also showed fewer cases of vascular complications (19% vs 10.7%; P = 0.005) and major bleeding (17.5% vs 8.5%; P = 0.001). Propensity matching yielded similar trends, including reduced frequency of pacemaker implantation (22.8% vs 10.9%; P = 0.03) and shorter median (interquartile range) hospitalization (11 [8-18] vs 7 [6-12] days; P <0.001) in the late experience group.
    Conclusions: The late experience group rated with PTA TAVI exhibited significantly reduced periprocedural complications, indicating a positive impact of accumulated expertise.
    MeSH term(s) Humans ; Transcatheter Aortic Valve Replacement/adverse effects ; Transcatheter Aortic Valve Replacement/methods ; Female ; Male ; Aged ; Aged, 80 and over ; Retrospective Studies ; Poland ; Postoperative Complications/epidemiology ; Postoperative Complications/etiology ; Aortic Valve Stenosis/surgery ; Femoral Artery ; Treatment Outcome
    Language English
    Publishing date 2024-03-14
    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.16696
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  8. Article ; Online: Association between the acquisition of antibodies against Lyme disease and the risk of atrial arrhythmias.

    Hasiec, Andrzej / Wolny, Rafał / Duda, Bartosz / Warmiński, Grzegorz / Kowalik, Ilona / Walczak, Ewa / Bilińska, Maria / Urbanek, Piotr / Bodalski, Robert / Orczykowski, Michał / Sterliński, Maciej / Szumowski, Łukasz

    Polish archives of internal medicine

    2022  Volume 132, Issue 5

    Abstract: ... other symptoms of LD. The presence of anti-BB antibodies (immunoglobulin [Ig] M and IgG) was assessed ...

    Abstract Introduction: The impact of antibodies against Borrelia burgdorferi (BB) on the occurrence of cardiac arrhythmias in patients without typical symptoms of Lyme disease (LD) is largely unknown.
    Objectives: We aimed to assess the risk of atrial fibrillation (AF) and other atrial arrhythmias (AAs) in patients who tested positive for anti-LD antibodies.
    Patients and methods: We included consecutive patients referred for the diagnosis and treatment of AAs who had no history of erythema migrans or other symptoms of LD. The presence of anti-BB antibodies (immunoglobulin [Ig] M and IgG) was assessed in each patient, and the diagnostic workup of cardiac arrhythmias was performed.
    Results: Of the 527 patients enrolled in the study, 292 (55%) were diagnosed with AAs, and we detected BB antibodies in 131 individuals (24.8%). The patients with a serological history of Borrelia infection were older (mean [SD], 55.6 [15.7] vs 50.3 [18.6] years; P = 0.01), had a higher probability of developing AF or other supraventricular arrhythmias (SAs) (66.4% vs 51.8%; P = 0.03), and had elevated levels of N‑terminal pro-B ‑type natriuretic peptide (NT‑proBNP) (58% vs 47.5%; P = 0.04). We also found an as-sociation between the occurrence of AF and other SAs in patients with anti-BB antibodies and elevated NT‑proBNP values, and the risk of AAs in these patients increased almost 3‑fold (P = 0.01).
    Conclusion: Our data indicated an association between the exposure to Borrelia infection and the risk for AF and other AAs in the patients with elevated levels of NT‑proBNP, suggesting the need for a more efficacious diagnostic approach to patients with SAs, especially in LD‑endemic regions.
    MeSH term(s) Atrial Fibrillation/complications ; Humans ; Lyme Disease/complications
    Language English
    Publishing date 2022-01-28
    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.16201
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  9. Article: Rodent Models of Diabetic Retinopathy as a Useful Research Tool to Study Neurovascular Cross-Talk.

    Polewik, Karolina / Kosek, Maciej / Jamrozik, Daniel / Matuszek, Iwona / Smędowski, Adrian / Lewin-Kowalik, Joanna / Pietrucha-Dutczak, Marita

    Biology

    2023  Volume 12, Issue 2

    Abstract: Diabetes is a group of metabolic diseases leading to dysfunction of various organs, including ocular complications such as diabetic retinopathy (DR). Nowadays, DR treatments involve invasive options and are applied at the sight-threatening stages of DR. ... ...

    Abstract Diabetes is a group of metabolic diseases leading to dysfunction of various organs, including ocular complications such as diabetic retinopathy (DR). Nowadays, DR treatments involve invasive options and are applied at the sight-threatening stages of DR. It is important to investigate noninvasive or pharmacological methods enabling the disease to be controlled at the early stage or to prevent ocular complications. Animal models are useful in DR laboratory practice, and this review is dedicated to them. The first part describes the characteristics of the most commonly used genetic rodent models in DR research. The second part focuses on the main chemically induced models. The authors pay particular attention to the streptozotocin model. Moreover, this section is enriched with practical aspects and contains the current protocols used in research in the last three years. Both parts include suggestions on which aspect of DR can be tested using a given model and the disadvantages of each model. Although animal models show huge variability, they are still an important and irreplaceable research tool. Note that the choice of a research model should be thoroughly considered and dependent on the aspect of the disease to be analyzed.
    Language English
    Publishing date 2023-02-07
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2661517-4
    ISSN 2079-7737
    ISSN 2079-7737
    DOI 10.3390/biology12020262
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  10. Article ; Online: Filter life span in postoperative cardiovascular surgery patients requiring continuous renal replacement therapy, using a postdilution regional citrate anticoagulation continuous hemofiltration circuit.

    Kośka, Agnieszka / Kirwan, Christopher J / Kowalik, Maciej M / Lango-Maziarz, Anna / Szymanowicz, Wiktor / Jagielak, Dariusz / Lango, Romuald

    Cardiology journal

    2020  Volume 29, Issue 1, Page(s) 53–61

    Abstract: Background: Regional citrate anticoagulation (RCA) is the recommended standard for continuous renal replacement therapy (CRRT). This study assesses its efficacy in patients admitted to critical care following cardiovascular surgery and the influence of ... ...

    Abstract Background: Regional citrate anticoagulation (RCA) is the recommended standard for continuous renal replacement therapy (CRRT). This study assesses its efficacy in patients admitted to critical care following cardiovascular surgery and the influence of standard antithrombotic agents routinely used in this specific group.
    Methods: Consecutive cardiovascular surgery patients treated with postdilution hemofiltration with RCA were included in this prospective observational study. The primary outcome of the study was CRRT circuit life-span adjusted for reasons other than clotting. The secondary outcome evaluated the influence of standard antithrombotic agents (acetylsalicylic acid [ASA], low molecular weight heparin [LMWH] or fondaparinux as thromboprophylaxis or treatment dose with or without ASA) on filter life.
    Results: Fifty-two patients underwent 193 sessions of continous veno-venous hemofiltration, after exclusion of 15 sessions where unfractionated heparin was administered. The median filter life span was 58 hours. Filter life span was significantly longer in patients receiving therapeutic dose of LMWH or fondaparinux (79 h [2-110]), in comparison to patients treated with prophylactic dose of LMWH or fondaparinux (51 h [7-117], p < 0.001), and patients without antithrombotic prophylaxis (42 h [2-91], p < 0.0001). 12 bleeding episodes were observed; 8 occurred in patients receiving treatment dose anticoagulation, 3 in patients receiving prophylactic dose anticoagulation and 1 in a patient with no antithrombotic prophylaxis.
    Conclusions: A postdilution hemofiltration with RCA provides prolonged filter life span when adjusted for reasons other than clotting. Patients receiving treatment dose anticoagulation had a significantly longer filter life span than those who were on prophylactic doses or ASA alone.
    MeSH term(s) Anticoagulants/adverse effects ; Citric Acid/adverse effects ; Continuous Renal Replacement Therapy/adverse effects ; Fibrinolytic Agents/therapeutic use ; Fondaparinux ; Hemofiltration/adverse effects ; Heparin/adverse effects ; Heparin, Low-Molecular-Weight/adverse effects ; Humans ; Longevity ; Venous Thromboembolism/chemically induced ; Venous Thromboembolism/drug therapy
    Chemical Substances Anticoagulants ; Fibrinolytic Agents ; Heparin, Low-Molecular-Weight ; Citric Acid (2968PHW8QP) ; Heparin (9005-49-6) ; Fondaparinux (J177FOW5JL)
    Keywords covid19
    Language English
    Publishing date 2020-03-24
    Publishing country Poland
    Document type Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 2488680-4
    ISSN 1898-018X ; 1897-5593
    ISSN (online) 1898-018X
    ISSN 1897-5593
    DOI 10.5603/CJ.a2020.0039
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