| 1. |
- Palica, Katarzyna, 1992-, et al.
(författare)
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Metallo-β-Lactamase Inhibitor Phosphonamidate Monoesters
- 2022
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Ingår i: ACS Omega. - : American Chemical Society (ACS). - 2470-1343. ; 7:5, s. 4550-4562
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Tidskriftsartikel (refereegranskat)abstract
- Being the second leading cause of death and the leading cause of disability-adjusted life years worldwide, infectious diseases remain─contrary to earlier predictions─a major consideration for the public health of the 21st century. Resistance development of microbes to antimicrobial drugs constitutes a large part of this devastating problem. The most widely spread mechanism of bacterial resistance operates through the degradation of existing β-lactam antibiotics. Inhibition of metallo-β-lactamases is expected to allow the continued use of existing antibiotics, whose applicability is becoming ever more limited. Herein, we describe the synthesis, the metallo-β-lactamase inhibition activity, the cytotoxicity studies, and the NMR spectroscopic determination of the protein binding site of phosphonamidate monoesters. The expression of single- and double-labeled NDM-1 and its backbone NMR assignment are also disclosed, providing helpful information for future development of NDM-1 inhibitors. We show phosphonamidates to have the potential to become a new generation of antibiotic therapeutics to combat metallo-β-lactamase-resistant bacteria.
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| 2. |
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| 3. |
- Andersson, Ulf, 1985-, et al.
(författare)
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Clinical Reasoning among Registered Nurses in Emergency Medical Services : A Case Study
- 2022
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Ingår i: Journal of Cognitive Engineering and Decision Making. - : Sage Publications. - 1555-3434 .- 2169-5032. ; 16:3, s. 123-156
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Tidskriftsartikel (refereegranskat)abstract
- In emergency medical services (EMS), the clinical reasoning (CR) of registered nurses (RNs) working in ambulance care plays an important role in providing care and treatment that is timely, accurate, appropriate and safe. However, limited existing knowledge about how CR is formed and influenced by the EMS mission hinders the development of service provision and decision support tools for RNs that would further enhance patient safety. To explore the nature of CR and influencing factors in this context, an inductive case study examined 34 observed patient-RN encounters in an EMS setting focusing on ambulance care. The results reveal a fragmented CR approach involving several parallel decision-making processes grounded in and led by patients' narratives. The findings indicate that RNs are not always aware of their own CR and associated influences until they actively reflect on the process, and additional research is needed to clarify this complex phenomenon.
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| 4. |
- Andersson, Ulf, 1985-, et al.
(författare)
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Clinical reasoning in the emergency medical services: an integrative review
- 2019
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Ingår i: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. - : Springer Science and Business Media LLC. - 1757-7241.
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Tidskriftsartikel (refereegranskat)abstract
- Abstract: Clinical reasoning is the process of gathering and understanding information conducted by clinicians in the emergency medical services (EMS) so as to make informed decisions. Research on clinical reasoning spans several disciplines, but a comprehensive view of the process is lacking. To our knowledge, no review of clinical reasoning in the EMS has been conducted.Aim: The aim was to investigate the nature, deployment, and factors influencing EMS clinicians’ clinical reasoning by means of a review.Method: Data was collected through searches in electronic databases, networking among research teams ,colleagues and friends, “grey literature,” and through ancestry searches. A total of 38 articles were deemed eligible for inclusion and were analyzed using descriptive thematic analysis. The analysis resulted in an overarching finding -namely, the importance for EMS clinicians to adjust for perceived control in unpredictable situations. Within this finding, 3 themes emerged in terms of EMS clinicians’ clinical reasoning: (1) maintaining a holistic view of the patient; (2) keeping an open mind; and (3) improving through criticism. Seven subthemes subsequently emerged from these three themes.Results: This review showed that EMS clinicians’ clinical reasoning begins with the information that they are given about a patient. Based on this information, clinicians calculate the best route to the patient and which equipment to use, and they also assess potential risks. They need to be constantly aware of what is happening on the scene and with the patient and strive to control the situation. This striving also enables EMS clinicians to work safely and effectively in relation to the patient, their relatives, other clinicians, associated organizations, and the wider community. A lack of contextually appropriate guidelines results in the need for creativity and forces EMS clinicians to use “workarounds” to solve issues beyond the scope of the guidelines available. In addition, they often lack organizational support and fear repercussions such as litigation, unemployment, or blame by their EMS or healthcare organization or by patients and relatives.Conclusion: Clinical reasoning is influenced by several factors. Further research is needed to determine which influencing factors can be addressed through interventions to minimize their impact on patient outcomes.
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| 5. |
- Andersson, Ulf, 1985-, et al.
(författare)
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Organizational factors influencing clinical reasoning in a Swedish emergency medical service organization: An explorative qualitative case study
- 2023
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Ingår i: Paramedicine. - : Sage Publications. - 2753-6386 .- 2753-6386.
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Tidskriftsartikel (refereegranskat)abstract
- IntroductionClinical reasoning (CR) among healthcare professionals working in emergency medical services (EMS) who focus on ambulance care is a vital part of ensuring timely and safe patient care. The EMS environment continually fluctuates, so clinicians constantly need to adapt to new situations. Organizational support is described as important for CR, but overall, research on organizational influences for CR in an EMS context is lacking. An increased understanding of these influencing factors can assist in the development of EMS by strengthening CR among clinicians. Therefore, the purpose of this study was to investigate the organizational factors influencing EMS clinicians’ CR.MethodsUsing a qualitative single case study design, an EMS organization in southwestern Sweden was explored. Data were collected from participant observations of patient encounters, individual and group interviews with clinicians and organizational representatives, and organizational document audits. Data were analyzed using qualitative content analysis and triangulation of data sources.ResultsThe results revealed several organizational influencing factors. Collaboration and information sharing internally and externally were emphasized as essential components influencing CR. Additionally, the structure for the clinicians’ ‘room for action’ appeared confused and created uncertainties for CR related to decision mandates.ConclusionThe conclusion is that organizational factors do play an important role in clinicians’ CR. Moreover, the EMS community needs to develop suitable forums for discussing and developing these influencing factors across organizational hierarchies. Finally, clarification is needed on clinicians’ ‘room for action’ within their own organization but also with possible collaborators.
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| 6. |
- Andersson, Ulf, 1985-, et al.
(författare)
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Situation awareness in Sweden’s emergency medical services : a goal-directed task analysis
- 2023
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Ingår i: Discover Health Systems. - 2731-7501. ; 2
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Tidskriftsartikel (refereegranskat)abstract
- Situation awareness is knowing what is going on in the situation. Clinicians working in the emergency medical services (EMS) encounter numerous situations in various conditions, and to be able to provide efficient and patient safe care they need to understand what is going on and possible projections of the current situation. The design of this study encompassed a Goal-Directed Task analysis where situation awareness information requirements were mapped in relation to goals related to various aspects of the EMS mission. A group of 30 EMS subject matter experts were recruited and answered a web-based survey in three rounds related to what they though themselves or a colleague might need to achieve situation awareness related to the specific goals of various situations. The answers were analysed using content analysis and descriptive statistics. Answers reached consensus at a predetermined level of 75%. Those who reached consensus were entered into the final goal-directed task analysis protocol. The findings presented that EMS clinicians must rely on their own, or their colleagues prior experience or knowledge to achieve situation awareness. This suggests that individual expertise plays a crucial role in developing situation awareness. There also seems to be limited support for situation awareness from organizational guidelines. Furthermore, achieving situation awareness also involves collaborative efforts from the individuals involved in the situation. These findings could add to the foundation for further investigation in this area which could contribute to the development of strategies and tools to enhance situation awareness among EMS clinicians, ultimately improving patient care and safety.
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| 7. |
- Palica, Katarzyna, 1992-, et al.
(författare)
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Phosphonate inhibitors of metallo-β-lactamases NDM-1 and VIM-2
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The upswing of antibiotic resistance is an escalating threat to human health. Resistance mediated by bacterial metallo-β-lactamases is of particular concern as these enzymes degrade β-lactams, our most frequently prescribed class of antibiotics, and they are increasingly disseminated worldwide. Inhibition of metallo-β-lactamases could allow the continued use of existing β-lactam antibiotics, such as pencillins and cephalosporins, whose applicability is becoming ever more limited. However, so far there are no clinically applicable inhibitors. The design, synthesis, and NDM-1, VIM-2, and GIM-1 inhibitory activities of a series of novel phosphonate-based inhibitor candidates is presented herein along with the solution NMR spectroscopic and computational identification of their NDM-1 and VIM-2 binding sites and binding modes. VIM-2 showed a higher conformational flexibility than NDM-1, complexed a larger number of phosphonate-based inhibitor candidates in more varying binding modes. This may indicate that it has a larger substrate promiscuity. Phosphonate-type transition-state mimicking inhibitors are demonstrated to be potential candidates for development into therapeutics to combating metallo-β-lactamase resistant bacteria
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| 8. |
- Palica, Katarzyna, 1992-, et al.
(författare)
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α-Aminophosphonate inhibitors of metallo-β-lactamases NDM-1 and VIM-2
- 2023
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Ingår i: RSC Medicinal Chemistry. - : Royal Society of Chemistry. - 2632-8682. ; 14:11, s. 2277-2300
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Tidskriftsartikel (refereegranskat)abstract
- The upswing of antibiotic resistance is an escalating threat to human health. Resistance mediated by bacterial metallo-β-lactamases is of particular concern as these enzymes degrade β-lactams, our most frequently prescribed class of antibiotics. Inhibition of metallo-β-lactamases could allow the continued use of existing β-lactam antibiotics, such as penicillins, cephalosporins and carbapenems, whose applicability is becoming ever more limited. The design, synthesis, and NDM-1, VIM-2, and GIM-1 inhibitory activities (IC50 4.1–506 μM) of a series of novel non-cytotoxic α-aminophosphonate-based inhibitor candidates are presented herein. We disclose the solution NMR spectroscopic and computational investigation of their NDM-1 and VIM-2 binding sites and binding modes. Whereas the binding modes of the inhibitors are similar, VIM-2 showed a somewhat higher conformational flexibility, and complexed a larger number of inhibitor candidates in more varying binding modes than NDM-1. Phosphonate-type inhibitors may be potential candidates for development into therapeutics to combat metallo-β-lactamase resistant bacteria.
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| 9. |
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| 10. |
- Andersson, Bodil, et al.
(författare)
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Severe Acute Pancreatitis - Outcome following a Primarily Non-Surgical Regime.
- 2006
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Ingår i: Pancreatology. - : Elsevier BV. - 1424-3903. ; 6:6, s. 536-541
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Tidskriftsartikel (refereegranskat)abstract
- Background/Aims: Severe acute pancreatitis ( SAP) is associated with a high morbidity and mortality. The aim was to evaluate treatment, risk factors and outcome in SAP in a centre with a restrictive attitude to surgery. Methods: All cases of acute pancreatitis admitted 1994 - 2003 were analysed retrospectively. SAP was defined as organ failure and/or hospital stay > 7 days together with one or more of: C-reactive protein > 150 mg/l within 72 h after admission, necrosis on computed tomography and need for treatment in the intensive care unit. Results: 185 (22%) of patients with acute pancreatitis fulfilled the criteria for SAP. 175 patients were included, mean age 61 +/- 17 years. Hospital stay was in median 13 days. Forty-six patients had some surgical intervention, in 14 cases directed at the pancreas (8%). Hospital mortality was 9% (n = 16), in 88% ( n = 14) associated with multiple organ dysfunction and 50% ( n = 8) of the deaths occurred within the first week after admission. Of the parameters registered on admission, age and hypotension (systolic blood pressure < 100 mm Hg) were identified as risk factors for death. Conclusion: The present treatment regime for SAP as defined above resulted in a 9% mortality rate, with age and hypotension at admission as predictive factors for death.
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