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OBJECTIVE: A pressure injury (PI) happens on the skin and in deeper tissues. Generally, it occurs due to prolonged compression over bony structures. A PI, when occurring during a hospital stay, is regarded as a hospital-acquired pressure injury (HAPI), and is considered as a marker for patient care quality. It might cause medical, legal or economic problems, and could be a burden on health systems. In this study we evaluate the factors contributing to HAPI formation. METHOD: Between June 2014-June 2021, we retrospectively investigated the files of patients who were hospitalised with different medical conditions in Bayindir Sögütözü Hospital, Ankara, Turkey, for patients' age, sex, Waterlow scale score, mobilisation status, application of zinc-containing and/or barrier creams (ZnBC), airbed usage, hospitalisation period, and the day of wound opening. RESULTS: The study cohort comprised 2327 hospitalised patients: 303 (13%) developed Stage 2 and deeper PIs; 2024 patients were hospitalised and discharged without wound opening. We found an increased risk in male patients and a lack of efficacy of ZnBC in protection from HAPI in our study population. However, we observed that ZnBC helped to delay wound opening and that the most protective treatment was the use of airbeds. CONCLUSION: Health professionals should be more aware of HAPI formation with prolonged hospitalisation periods. Only the use of an airbed for a patient hospitalised for a long period appears to be protective against PI formation. On the other hand, use of ZnBC delays wound opening. However, further research is needed to demonstrate the protective effect of ZnBC, due to the lack of randomisation in our study and the lack of some nursing records.
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Úlcera por Pressão , Humanos , Masculino , Estudos Retrospectivos , Úlcera por Pressão/prevenção & controle , Úlcera por Pressão/epidemiologia , Hospitais , Qualidade da Assistência à Saúde , HospitalizaçãoRESUMO
Purpose: To evaluate the clinical effectiveness and health economic benefits of a novel indwelling lattice-based device for fecal management in bedridden patients. Materials and methods: This nonrandomized, two-arm study included 70 bedridden patients (≥18 years exhibiting liquid stool) referred from the ICU of surgery and medicine units of a 2000-bed tertiary care referral hospital, assigned to the intervention and control groups. About 35 patients were eligible to be included in the intervention group while 35 patients with contraindications to the intervention device were included in the usual care control group. Assessments were made before and every 24 hours during the study, and all patients were closely monitored for development of incontinence-associated dermatitis (IAD) and hospital-acquired pressure injury. Results: The test device was successfully deployed on the first attempt and effectively diverted fecal matter in all 35 patients, with no adverse events. In the control group, 83% of the patients developed IAD, which resulted in prolonged hospitalization and increased expenses. Overall, the control group (with adult diapers) required greater time, resources, and efforts for fecal management and resulted in increased patient morbidity. Conclusion: The patient management time, resource consumption, overall cost of hospital admission, and the complication rates are significantly lower with the use of the novel lattice-based device than with the use of adult diapers for fecal management. How to cite this article: Sheth H, Rao S, Karthik V. Clinical and Health Economic Evaluation of a Novel Device for Fecal Management in Bedridden Patients. Indian J Crit Care Med 2023;27(10):759-765.
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3-Hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors (statins) have been associated with conflicting effects within the central nervous system (CNS), with underlying mechanisms remaining unclear. Although differences between individual statins' CNS effects have been reported clinically, few studies to date have compared multiple statins' neuroprotective effects. This study aimed to compare six statins (atorvastatin, fluvastatin, pitavastatin, pravastatin, rosuvastatin, simvastatin; 0-100⯵M) using an in vitro model of lipopolysaccharide (LPS)-induced neuroinflammation and subsequent neurodegeneration. To achieve this, HAPI microglia were treated with LPS (0.1⯵g/mL; 24â¯h), resulting in increased reactive oxygen species (ROS), nitric oxide, and IL-1ß, TNF-α and PGE2 release. Conditioned media ("HAPI-CM") was then transferred to SH-SY5Y neuroblastoma cells, and effects on cellular viability, mitochondrial membrane permeability, apoptosis, autophagy and ROS production assessed. Of the statins investigated, only atorvastatin, pravastatin and rosuvastatin protected SH-SY5Y cells from LPS-induced decreases in cellular viability; this appeared mediated through reduced caspase 3/7 activation and was associated with decreased IL-1ß (atorvastatin, pravastatin) and/or TNF-α (atorvastatin, pravastatin, rosuvastatin). Only pravastatin conferred protection at all tested concentrations. ROS production and autophagic vacuole formation was decreased by all statins, suggesting these two mechanisms are unlikely to be sole mediators of neuroprotection seen with selected statins. Ultimately, our model suggests that despite all statins reducing microglial inflammation, subsequent effects on neuronal viability and cell death signalling pathways varies between statins. Our findings highlight the need to consider individual statins as inducing discrete pharmacological effects within the CNS in future in vitro/in vivo studies and in clinical practice.
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Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Mediadores da Inflamação/metabolismo , Interleucina-1beta/metabolismo , Degeneração Neural/metabolismo , Neuroproteção/fisiologia , Fator de Necrose Tumoral alfa/metabolismo , Animais , Linhagem Celular , Relação Dose-Resposta a Droga , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Mediadores da Inflamação/antagonistas & inibidores , Interleucina-1beta/antagonistas & inibidores , Microglia/efeitos dos fármacos , Microglia/metabolismo , Degeneração Neural/tratamento farmacológico , Neuroproteção/efeitos dos fármacos , Ratos , Fator de Necrose Tumoral alfa/antagonistas & inibidoresRESUMO
Health Level 7's (HL7's) new standard, FHIR (Fast Health Interoperability Resources), is setting healthcare information technology and medical imaging specifically ablaze with excitement. This paper aims to describe the protocol's advantages in some detail and explore an easy path for those unfamiliar with FHIR to begin learning the standard using free, open-source tools, namely the HL7 application programming interface (HAPI) FHIR server and the SIIM Hackathon Dataset.
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Conjuntos de Dados como Assunto , Diagnóstico por Imagem , Registros Eletrônicos de Saúde , Interoperabilidade da Informação em Saúde , Nível Sete de Saúde , Sistemas de Informação em Radiologia , Humanos , Software , TempoRESUMO
PURPOSE: A large, freestanding pediatric hospital in the southern United States saw a 117% increase in reported hospital acquired pressure injuries (HAPI) between 2013 and 2015, with the intensive care units being the units of highest occurrence. Design and Methods A quality improvement project was designed and implemented to assist with pressure injury prevention. Literature review confirmed that pediatric HAPIs are a challenge and that usage of bundles and user-friendly guidelines/pathways can help eliminate barriers to prevention. The aim of this quality improvement project had two aims. First, to reduce HAPI incidence in the PICU by 10%. Second, to increase consistent usage of pressure injury prevention strategies as evidenced by a 10% increase in pressure injury bundle compliance. The third aim was to identify if there are differences in percentage of interventions implemented between two different groups of patients. Donabedian's model of Structure, Process, and Outcomes guided the development and implementation of this quality improvement project. Interventions focused on risk assessment subscale scores have the opportunity to mitigate specific risk factors and improve pressure injury prevention. RESULTS: Through implementation of the nurse driven pathway there was as 57% decrease in reported HAPIs in the PICU as well as a 66% increase in pressure ulcer prevention bundle compliance. CONCLUSIONS: Implementation of the nurse driven pressure injury prevention pathway was successful. There was a significant increase in bundle compliance for pressure ulcer prevention and a decrease in reported HAPIs. PRACTICE IMPLICATIONS: The pathway developed and implemented for this quality improvement project could be adapted to other populations and care settings to provide guidance across the continuum.
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Pressure injury (PI) rates are a commonly used indicator of performance of health care facilities, both in acute and subacute settings. However, measuring PI rates in an accurate and reproducible fashion has been challenging. The consequences of poor measurement may include failure to identify poorly performing institutions or incorrect accusations of poor quality care. In this article, we describe the main challenges in identification, coding, and reporting of PIs. Issues include inconsistent identification of PIs at the time of admission, variations in the intensity of PI detection, and differing approaches to coding and the adjustment for differing risks amongst different patient population. These are compounded by differences in the epidemiological approach because rates will differ according to whether patients are surveyed cross-sectionally (eg, on a set day per month) or if the survey is undertaken at discharge. In some cases, financial incentives may also influence PI reporting. We also discuss potential strategies for improving data collection and benchmarking as an aid to reducing PI prevalence.
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Úlcera por Pressão/diagnóstico , Qualidade da Assistência à Saúde , Codificação Clínica , Humanos , Úlcera por Pressão/epidemiologia , Úlcera por Pressão/prevenção & controleRESUMO
To more precisely evaluate the effects of nurse staffing on hospital-acquired pressure injury (HAPI) development, data on nursing care hours per patient day (NCHPPD), nursing skill mix, patient turnover (i.e., admissions, transfers, and discharges), and patient acuity were merged with patient information from pressure injury prevalence surveys that were collected annually for the Military Nursing Outcomes Database (MilNOD) project. The MilNOD included staffing and adverse events from 56 medical-surgical, stepdown, and critical care units in 13 military hospitals over a 4-year-period. Data on 1,643 patients were analyzed with Cox proportional hazards models and generalized estimating equations. Staffing was not associated with pressure injuries in stepdown or critical care patients. However, among the 1,104 medical-surgical patients, higher licensed practical nurse (LPN) nursing care hours per patient day (NCHPPD) 3 days and 1 week prior to the HAPI discovery date were associated with fewer HAPI (HR 0.27, p < .001), after controlling for patient age, Braden mobility score, and albumin level. Neither total staff number, nor RN NCHPPD, nor the proportion of staff who were RNs (RN skill mix) were associated with HAPI. These findings suggest that on military medical-surgical units, LPNs play a major role in HAPI prevention. Although the national trend in acute care is to staff hospital units with more RNs and patient care technicians, and fewer LPNs, hospitals should reconsider LPNs as valuable members of the nursing care team. © 2016 Wiley Periodicals, Inc.
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Hospitais Militares/organização & administração , Recursos Humanos de Enfermagem Hospitalar/provisão & distribuição , Admissão e Escalonamento de Pessoal , Úlcera por Pressão/prevenção & controle , Feminino , Unidades Hospitalares , Humanos , Técnicos de Enfermagem/estatística & dados numéricos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Reorganização de Recursos HumanosRESUMO
This paper introduces the concept of the implementation of a FHIR server for bidirectional data exchange with the OMOP-CDM. Leveraging FHIR as a metamodel, the implementation aims to promote a more interconnected and patient-centric healthcare ecosystem. The methodology involves utilizing the Java HAPI FHIR API for server architecture and validating the solution through patient data exchange with a FHIR reference implementation server. This initiative signifies a significant advancement in healthcare data interoperability, promising improved patient care quality and clinical research vigor.
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Registros Eletrônicos de Saúde , Humanos , Interoperabilidade da Informação em Saúde , SoftwareRESUMO
Background: Recent outbreaks of clade 2.3.4.4b highly pathogenic avian influenza (HPAI) H5N1 viruses in regions previously less affected since 2020 have raised global concerns. Implementing mass immunization or ring vaccination in poultry should be a countermeasure ready to contain disease outbreaks. This study focuses on developing a recombinant H5N2 vaccine based on virus-like particles (VLPs) against clade 2.3.4.4c, the predominant HPAI subclade in Taiwan since its emergence, leading to a large outbreak in 2015. Methods: The study aimed to confirm the effectiveness of clade 2.3.4.4c H5N2 VLPs in protecting chickens and identify the best adjuvants for the VLP vaccine. We used Montanide 71VG-adjuvanted inactivated RG6 to establish the immunization protocol, followed by prime-boost H5N2-VLP immunizations. We compared adjuvants: 71VG, 71VG with VP3, and Alum with VP3. Serum samples were tested for antibodies against homologous vaccine antigens and cross-clade antigens by hemagglutination inhibition (HI) assays. Finally, we evaluated the protective efficacy by lethally challenging immunized chickens with H5 viruses from clade 1 or 2.3.4.4c. Results: Poultry adjuvant 71VG significantly enhanced antibody responses in chickens with inactivated RG6 compared to unadjuvanted inactivated virus. While increasing antigen dosage enhanced 71VG adjuvanted RG6-induced antibody titers, the vaccine displayed minimal cross-reactivity against locally circulating HPAI H5N2. In contrast, H5N2-VLP containing the HA protein of clade 2.3.4.4c, adjuvanted with (FMDV) VP3 in 71VG, significantly promoted HI antibody responses. All H5N2-VLP immunized chickens survived lethal challenges with the local clade 2.3.4.4c H5 strain. Conclusion: The study demonstrated the immunogenic potential of the VLP vaccine in chickens. Our findings offer insights for optimizing VLP vaccines, allowing the incorporation of the HA of currently circulating H5 viruses to effectively mitigate the impact of the rapidly evolving clade 2.3.4.4 H5 outbreaks.
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Introduction: The purpose of this descriptive study is to examine a learning health system (LHS) continuous improvement and learning approach as a case for increased quality, standardized processes, redesigned workflows, and better resource utilization. Hospital acquired pressure injuries (HAPI) commonly occur in the hospitalized patient and are costly and preventable. This study examines the effect of a LHS approach to reducing HAPI within a large academic medical center. Methods: Our learning health center implemented a 6-year series of iterative improvements that included both process and technology changes, with robust data and analytical reforms. In this descriptive, observational study, we retrospectively examined longitudinal data from April 1, 2018 to March 31, 2022, examining the variables of total number of all-stage HAPI counts and average length of stay (ALOS). We also analyzed patient characteristics observed/expected mortality ratios, as well as total patient days, and the case-mix index to determine whether these factors varied over the study period. We used the Agency for Healthcare Research and Quality cost estimates to identify the estimated financial benefit of HAPI reductions on an annualized basis. Results: HAPI per 1000 patient days for FY 20 (October 1-September 30) and FY 21, decreased from 2.30 to 1.30 and annualized event AHRQ cost estimates for HAPI decreased by $4 786 980 from FY 20 to FY 21. A strong, statistically significant, negative and seemingly counterintuitive correlation was found (r = -.524, P = .003) between HAPI and ALOS. Conclusions: The LHS efforts directed toward HAPI reduction led to sustained improvements during the study period. These results demonstrate the benefits of a holistic approach to quality improvement offered by the LHS model. The LHS model goes beyond a problem-based approach to process improvement. Rather than targeting a specific problem to solve, the LHS system creates structures that yield process improvement benefits over a continued time period.
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The aim of this study was to evaluate the effectiveness of an evidence-based care bundle to prevent perioperative pressure injuries. In a single facility, using a preintervention and postintervention quasi-experimental design, we compared the pressure injury incidence rate for two patient groups (ie, before and after care bundle implementation). The bundle included a variety of elements, such as educating patients, applying protection, controlling skin moisture, and using pressure-relieving devices according to the patient's risk. Before the intervention, patients received standard care before procedures that did not address risk for pressure injury development. The study involved a total of 944 patients, and the incidence of pressure injury was lower in the postintervention group than in the preintervention group (1.6% versus 4.8%; P < .001). However, the odds ratio was nonsignificant and therefore the clinical relevance of the bundle is unclear. Additional research with a control group and multiple sites is needed.
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Pacotes de Assistência ao Paciente , Úlcera por Pressão , Humanos , Úlcera por Pressão/epidemiologia , Pacientes , Medicina Baseada em Evidências , HospitaisRESUMO
Background: The Braden Scale is commonly used to determine Hospital-Acquired Pressure Injuries (HAPI). However, the volume of patients who are identified as being at risk stretches already limited resources, and caregivers are limited by the number of factors that can reasonably assess during patient care. In the last decade, machine learning techniques have been used to predict HAPI by utilizing related risk factors. Nevertheless, none of these studies consider the change in patient status from admission until discharge. Objectives: To develop an integrated system of Braden and machine learning to predict HAPI and assist with resource allocation for early interventions. The proposed approach captures the change in patients' risk by assessing factors three times across hospitalization. Design: Retrospective observational cohort study. Setting(s): This research was conducted at ChristianaCare hospital in Delaware, United States. Participants: Patients discharged between May 2020 and February 2022. Patients with HAPI were identified from Nursing documents (N = 15,889). Methods: Support Vector Machine (SVM) was adopted to predict patients' risk for developing HAPI using multiple risk factors in addition to Braden. Multiple performance metrics were used to compare the results of the integrated system versus Braden alone. Results: The HAPI rate is 3%. The integrated system achieved better sensitivity (74.29 ± 1.23) and detection prevalence (24.27 ± 0.16) than the Braden scale alone (sensitivity (66.90 ± 4.66) and detection prevalence (41.96 ± 1.35)). The most important risk factors to predict HAPI were Braden sub-factors, overall Braden, visiting ICU during hospitalization, and Glasgow coma score. Conclusions: The integrated system which combines SVM with Braden offers better performance than Braden and reduces the number of patients identified as at-risk. Furthermore, it allows for better allocation of resources to high-risk patients. It will result in cost savings and better utilization of resources. Relevance to clinical practice: The developed model provides an automated system to predict HAPI patients in real time and allows for ongoing intervention for patients identified as at-risk. Moreover, the integrated system is used to determine the number of nurses needed for early interventions. Reporting Method: EQUATOR guidelines (TRIPOD) were adopted in this research to develop the prediction model. Patient or Public Contribution: This research was based on a secondary analysis of patients' Electronic Health Records. The dataset was de-identified and patient identifiers were removed before processing and modeling.
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BACKGROUND: Pyrroloquinoline quinone (PQQ) is involved in various physiological and biochemical processes, including antioxidant, cell proliferation, and mitochondrial formation. It plays a vital role in protecting neurons. However, the effect of PQQ on microglia, an inflammatory cell of the central nervous system (CNS), is still unclear. This study aimed to investigate the biological role and neuroprotective mechanism of PQQ in HAPI microglial cells exposed to lipopolysaccharide (LPS). METHODS: Western blot (WB) was used to detect apoptosis and autophagy-related molecules Bax, Bcl2, active-caspase-3, caspase-3, LC3, lysosomal associated membrane protein 2 (LAMP2), AKT, tumor necrosis factor receptor (TNFR) 1, and TNFR2 expression. The phosphatidylinositol 3-kinase (PI3K)/Akt inhibitor LY294002 was used to block the Akt pathway. WB detected the effects of PI3K on autophagy and TNFR1 and TNFR2 expression. The localization of active-caspase-3, caspase-3, LC3, LAMP2, TNFR1, and TNFR2 in cells was observed by immunofluorescence staining. The effect of PQQ on the cell cycle was examined by flow cytometry. We used 5-Ethynyl-2'-deoxyuridine (EdU) assay to detect cell proliferation. The migration ability of cells under different conditions was detected by scratch test and Transwell assay. RESULTS: Our results showed that there were different effects on the apoptosis-related molecules Bcl2/Bax and active-caspase-3/caspase in HAPI microglial cells treated with PQQ at different times. PQQ had no significant effect on the LC3b/a ratio in the early stage, which was upregulated in the later stage. The expression of LAMP2 was significantly increased in both early and late stages after PQQ treatment. At the same time, we found that PQQ can reverse the translocation of LAMP2 from the cytoplasm to the nucleus in LPS-induced HAPI microglia. After PQQ treatment, TNFR1 was significantly decreased, but TNFR2 increased in LPS-induced HAPI microglia. It may be that PQQ works through the PI3K/Akt signaling pathway to up-regulate LC3, LAMP2, and TNFR1 and down-regulate TNFR2 in LPS-induced HAPI microglia. However, PQQ has little effect on LPS-induced proliferation, cell cycle, and migration of HAPI microglia. CONCLUSIONS: In LPS-induced HAPI microglia, PQQ reduces the apoptosis level and increases that of autophagy. In addition, PQQ changes the distribution of LAMP2 in the cytoplasm and nucleus, which is regulated through the PI3K/Akt signaling pathway.
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Health care organizations no longer receive reimbursement for stage 3, stage 4, and unstageable hospital-acquired pressure injuries, which are never events that require interdisciplinary collaboration to treat and prevent. Perioperative patients are at risk for developing pressure injuries that may not manifest until five or more days after surgery. This quality improvement project aimed to inform inpatient nursing and health care professionals of the potential areas of skin breakdown after surgery using an annotated image (AI) depicting intraoperative patient positioning. To gauge OR nurses' use of the AI, we tracked image addition to the patient records weekly from May 2018 to May 2019 and found an overall average participation rate of 80% to 90%. Adding the AI of surgical positioning and pressure points raised awareness of the potential for skin breakdown and became a valuable communication tool for the inpatient nurses who were providing postoperative care to prevent pressure injuries.
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Registros Eletrônicos de Saúde , Úlcera por Pressão , Humanos , Comunicação , Pacientes Internados , Melhoria de Qualidade , Úlcera por Pressão/prevenção & controleRESUMO
Hospital-acquired pressure injuries are a patient safety concern and can be costly for health care organizations. A multidisciplinary team of senior leaders, managers, nurses, and educators from departments that care for perioperative patients created an evidence-based perioperative pressure injury prevention bundle that includes skin and risk assessments, visual and electronic health record cues, prophylactic protection of at-risk skin, communication among providers and leaders regarding patient risk and injury throughout hospitalization, staff member education, compliance audits, root cause analyses, and wound care team follow-up. The prevention bundle resulted in a 50% reduction in perioperative pressure injuries the first calendar year after implementation and a zero-incidence rate for perioperative pressure injuries for at least a two-year period. This article discusses hospital-acquired pressure injuries related to the perioperative setting and outlines the full perioperative pressure injury prevention bundle.
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Período Perioperatório/normas , Úlcera por Pressão/terapia , Humanos , Doença Iatrogênica/epidemiologia , Doença Iatrogênica/prevenção & controle , Pacotes de Assistência ao Paciente , Período Perioperatório/métodos , Período Perioperatório/tendências , Úlcera por Pressão/etiologia , Úlcera por Pressão/prevenção & controle , Medição de Risco/métodos , Fatores de RiscoRESUMO
Pressure injury prevention is essential to patient safety in the perioperative setting. Perioperative nurses should be knowledgeable about the risk factors for pressure injury and the safety precautions that can be taken to prevent this injury from occurring. Perioperative nurses should be able to identify patients who are at high risk for developing a pressure injury. Perioperative patients are at risk for developing pressure injuries because they can experience intense or prolonged pressure during lengthy surgical procedures, may have increased pressure on bony prominences from positioning, are exposed to friction or shear during transfer to the OR bed and positioning, and often have significant comorbidities. This Back to Basics article examines the risk factors for pressure injuries in the perioperative patient population and discusses screening and prevention measures that can be implemented.
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Posicionamento do Paciente , Assistência Perioperatória , Enfermagem Perioperatória , Úlcera por Pressão/prevenção & controle , Lesões por Esmagamento , Humanos , Úlcera por Pressão/etiologia , Fatores de RiscoRESUMO
Pressure injury prevention is required in all health care environments. Respiratory technology includes invasive and noninvasive positive pressure ventilation methods of support and life-saving equipment. Pressure injury can occur from tracheostomy tubes and their securement devices, or use of noninvasive positive pressure ventilation interfaces or the head gear. Methods instituted to decrease hospital-acquired pressure injury related to noninvasive positive pressure ventilation and tracheostomy securement devices are discussed.
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Equipamentos e Provisões , Doença Iatrogênica , Ventilação não Invasiva , Úlcera por Pressão , Insuficiência Respiratória , Humanos , Equipamentos e Provisões/efeitos adversos , Doença Iatrogênica/prevenção & controle , Ventilação não Invasiva/efeitos adversos , Insuficiência Respiratória/prevenção & controle , Insuficiência Respiratória/terapia , Traqueostomia/efeitos adversos , Úlcera por Pressão/prevenção & controleRESUMO
Catecholamines may undergo iron-promoted oxidation resulting in formation of reactive intermediates (aminochromes) capable of redox cycling and reactive oxygen species (ROS) formation. Both of them induce oxidative stress resulting in cellular damage and death. Iron chelation has been recently shown as a suitable tool of cardioprotection with considerable potential to protect cardiac cells against catecholamine-induced cardiotoxicity. However, prolonged exposure of cells to classical chelators may interfere with physiological iron homeostasis. Prochelators represent a more advanced approach to decrease oxidative injury by forming a chelating agent only under the disease-specific conditions associated with oxidative stress. Novel prochelator (lacking any iron chelating properties) BHAPI [(E)-N-(1-(2-((4-(4,4,5,5-tetramethyl-1,2,3-dioxoborolan-2-yl)benzyl)oxy)phenyl)ethylidene) isonicotinohydrazide] is converted by ROS to active chelator HAPI with strong iron binding capacity that efficiently inhibits iron-catalyzed hydroxyl radical generation. Our results confirmed redox activity of oxidation products of catecholamines isoprenaline and epinephrine, that were able to activate BHAPI to HAPI that chelates iron ions inside H9c2 cardiomyoblasts. Both HAPI and BHAPI were able to efficiently protect the cells against intracellular ROS formation, depletion of reduced glutathione and toxicity induced by catecholamines and their oxidation products. Hence, both HAPI and BHAPI have shown considerable potential to protect cardiac cells by both inhibition of deleterious catecholamine oxidation to reactive intermediates and prevention of ROS-mediated cardiotoxicity.
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Compostos de Boro/farmacologia , Cardiotônicos/farmacologia , Catecolaminas/antagonistas & inibidores , Catecolaminas/toxicidade , Quelantes de Ferro/farmacologia , Estresse Oxidativo/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Semicarbazonas/farmacologia , Animais , Biocatálise , Ácidos Borônicos/farmacologia , Linhagem Celular , Epinefrina/antagonistas & inibidores , Epinefrina/toxicidade , Glutationa/metabolismo , Humanos , Radical Hidroxila/metabolismo , Ferro/química , Isoproterenol/antagonistas & inibidores , Isoproterenol/toxicidade , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Pró-Fármacos/farmacologia , RatosRESUMO
Pressure injuries negatively affect patients physically, emotionally, and economically. Studies report that pressure injuries occur in 69% of inpatients who have undergone a surgical procedure while hospitalized. In 2012, we created a nurse-initiated, perioperative pressure injury risk assessment measure for our midwestern, urban, adult teaching hospital. We retrospectively applied the risk assessment to a random sample of 350 surgical patients which validated the measure. The prospective use of the risk assessment and prevention measures in 350 surgical patients resulted in a 60% reduction in pressure injuries compared with the retrospective group. Our findings support the use of a multipronged approach for the prevention of health care-associated pressure injuries in the surgical population, which includes assessment of risk, implementation of evidence-based prevention interventions for at-risk patients, and continuation of prevention beyond the perioperative setting to the nursing care unit.