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2.
Burns ; 50(5): 1138-1144, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38448317

RESUMO

Burns are serious injuries associated with significant morbidity and mortality. In Israel, burn patients are often transferred between facilities. However, unstructured and non-standardized transfer processes can compromise the quality of patient care and outcomes. In this retrospective study, we assessed the impact of implementing a transfer form for burn management, comparing two populations: those transferred before and after the transfer form implementation. This study included 47 adult patients; 21 were transferred before and 26 after implementing the transfer form. We observed a statistically significant improvement in reporting rates of crucial information obtained by Emergency Room clinicians and inpatient management indicators. Introducing a standardized transfer form for burn patients resulted in improved communication and enhanced primary management, transfer processes, and emergency room preparation. The burns transfer form facilitated accurate and comprehensive information exchange between clinicians, potentially improving patient outcomes. These findings highlight the importance of structured transfer processes in burn patient care and emphasize the benefits of implementing a transfer form to streamline communication and optimize burn management during transfers to specialized burn centers.


Assuntos
Unidades de Queimados , Queimaduras , Transferência de Pacientes , Humanos , Queimaduras/terapia , Israel , Transferência de Pacientes/organização & administração , Unidades de Queimados/organização & administração , Adulto , Estudos Retrospectivos , Masculino , Feminino , Pessoa de Meia-Idade , Serviço Hospitalar de Emergência/organização & administração , Idoso , Adulto Jovem , Comunicação
3.
J Rehabil Med ; 56: jrm13207, 2024 03 12.
Artigo em Inglês | MEDLINE | ID: mdl-38470167

RESUMO

OBJECTIVES: To evaluate the effect of different dosage parameters of focused-extracorporeal shock wave therapy on pain and physical function in knee osteoarthritis patients with bone marrow lesions. In addition, to investigate pathophysiological changes based on imaging and biomarker measures. METHODS: Using a single-case experimental design, a total of 12 participants were randomly allocated in 4 equal groups of 3 to receive different dosages of focused-extracorporeal shock wave therapy. Each group received either 4 or 6 sessions of 1500 or 3000 shocks over 4 or 6 weekly sessions. Participants underwent repeated measurements during the baseline, intervention, and post-intervention phases for Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, aggregated locomotor function score and pressure pain threshold. Imaging and inflammatory biomarker outcomes were measured at baseline and 3 months following the intervention. RESULTS: The group receiving the highest dosage of focused-extracorporeal shock wave therapy showed clinical improvements superior to those of participants in the other 3 groups. Statistically significant changes during the follow-up phase in contrast to baseline measurements for the WOMAC score (Tau-U= -0.88, p < 0.001), aggregated locomotor function score (Tau-U= -0.77, p = 0.002), and pressure pain threshold (Tau-U= 0.54, p = 0.03) were observed. Bone marrow lesion and inflammatory cytokines demonstrated no change. CONCLUSION: A dose-dependent effect for focused-extracorporeal shock wave therapy on osteoarthritis-related symptoms was suggested. However, these improvements were not associated with changes in the underlying pathophysiological mechanisms.


Assuntos
Tratamento por Ondas de Choque Extracorpóreas , Osteoartrite do Joelho , Humanos , Osteoartrite do Joelho/terapia , Projetos Piloto , Medula Óssea , Biomarcadores
4.
J Burn Care Res ; 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38381556

RESUMO

Partial-thickness burns are the most common form of burns, affecting the dermis and possibly resulting in scarring and infection. The Spincare® System is a new device that uses electrospinning technology to create a temporary skin-like matrix that can be applied to wounds. This study evaluated the performance, safety, and efficacy of Spincare in treating superficial to partial-thickness burns not considered for surgery. A prospective single-arm, open-label, multicenter study was conducted in three adult burn units across Israel. Forty-four patients with superficial to intermediate burns of up to 10% of total body surface area (TBSA) were enrolled. Spincare was applied to the wounds, and follow-up visits were performed on days 7, 14, and 21 and months 3 and 6 post-treatment. Thirty-one patients with 36 wounds completed the day 21 visit. The mean wound healing area on day 21 was 97.26± 9.41%, and the mean healing time was 12.8±4.3 days. Only one moderate adverse event was observed concerning the treatment, and it is important to acknowledge the potential progression of this hypertrophic scar into a keloid. This study demonstrated that Spincare is a safe and effective device for treating superficial to intermediate partial-thickness burns. Spincare achieved rapid and complete wound healing with a low incidence of adverse events.

5.
Can J Nurs Res ; 56(2): 164-170, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37801518

RESUMO

This paper introduces and discusses factor analysis techniques for construct validity, including some suggestions for reporting using the evidence to support the construct validity from exploratory and confirmatory factor analysis techniques. Construct validity is a vital part of psychological testing and a prerequisite to every measurement instrument, including aptitude, achievement, and interests. Research, particularly in nursing and the health sciences, depends on reliable and valid measurements. Therefore, a growing emphasis is on assessing validity regarding the structure of test variables commonly estimated by factor analysis techniques. However, it is not always clear how to report the analysis and use it to support the construct validity. Both exploratory and confirmatory factor analysis techniques provide vital evidence to support the construct validity. However, these are not the only available evidence for construct validity, and the researcher should always consider other sources of evidence to develop and support the construct validity of their intended measures. In addition, the collection and presentation of this evidence are not limited to a time, but the validity of constructs is a continuous process that leads to validating the underlying theories from which constructs have emerged.

7.
J Foot Ankle Surg ; 62(5): 845-849, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37164252

RESUMO

Diabetic foot ulcer (DFU) is the most common cause of prolonged hospitalization with a high cost of care due to unsatisfactory outcomes with the current mode of therapy. Extracorporeal shockwave therapy (ESWT) is a new technology in the care of nonhealing wounds. The study's main objective was to compare the healing parameters of DFUs between patients undergoing the standard of care (SOC) alone and ESWT + SOC. The secondary objective was to assess inflammatory markers in both study groups. The study was designed as a single-center, randomized trial to provide evidence on the effects of ESWT on DFU healing. Informed consent was obtained from all participants before enrolment. Forty-eight participants were recruited, enrolled, and randomly allocated into the 2 study groups. Twenty-five patients were allocated to the ESWT + SOC group, and 23 patients were allocated into the SOC-only group for a treatment period of 6 weeks. The univariate binary analysis showed more patients with healed DFU in the ESWT + SOC group than the SOC-only group at 6 weeks, though the difference did not reach statistical significance (OR = 3.2, p = .07). The adjusted multivariate binary analysis confirmed this finding; however, the effect size did not reach statistical significance at 6 weeks (OR = 3.9, p = .08). The level of circulating inflammatory markers was similar in both groups of patients. It is the author's opinion that there is a potential benefit of ESWT on diabetic wound healing with further research warranted to determine its role in treatment of DFU. A larger trial with a more extended treatment period is, however, needed to substantiate our findings.


Assuntos
Diabetes Mellitus , Pé Diabético , Tratamento por Ondas de Choque Extracorpóreas , Humanos , Pé Diabético/terapia , Estudos Prospectivos , Resultado do Tratamento , Cicatrização , Diabetes Mellitus/terapia
8.
Trends Pharmacol Sci ; 44(6): 324-334, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36805364

RESUMO

Adenosine-lidocaine-magnesium (ALM) mixture is a cardioplegic agent that improves survivability undisputedly in rodents, but not swine, models of hemorrhagic shock. However, despite protection from comorbid coagulopathy being the one common effect reported in both models, the underlying prothrombotic mechanism for ALM has not been fully elucidated. Here, we undertook a component-based approach focusing on individual drugs in the mixture to elaborate on the protective mechanism against coagulopathy within the frames of adenosine signaling and metabolic pathways. Additionally, the translational potential of small and large animal models of hemorrhagic shock for human survival is critically appraised, owing to substantial quantitative/qualitative differences between humans and rodents, particularly regarding the genetics of G protein-coupled receptors (GPCRs) interacting with ALM's constituents.


Assuntos
Choque Hemorrágico , Humanos , Suínos , Animais , Magnésio/farmacologia , Adenosina , Lidocaína/farmacologia , Modelos Animais de Doenças
9.
Healthcare (Basel) ; 10(12)2022 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-36554098

RESUMO

BACKGROUND: One-third of patients who recover from COVID-19 present with long COVID. Their symptoms are broad, affecting their physical functioning and, ultimately, their quality of life. Many of those individuals who develop long COVID, possibly from a mild COVID-19 infection, are in the 18-65 age group. This prolongation of malaise directly influences national workforce economies. OBJECTIVES: To summarise the commonly reported physical symptoms of long COVID in order to inform potential adjustments in healthcare for the employable population. METHODS: The Embase, CINAHL, Medline, SCOPUS, and WHO COVID-19 databases were searched. The study selection process was based on the PRISMA guidelines. The extracted data were synthesised and presented narratively. RESULTS: 7403 studies were accessed, comprising 60 cohort studies and 10 case series/studies, representing 289,213 patients who met our criteria. The most frequently reported physical symptoms were fatigue (92%), shortness of breath (SOB) (81.8%), muscle pain (43.6%), and joint pain (34.5%). CONCLUSIONS: The range of reported physical symptoms was broad and varied; the main ones being fatigue, breathlessness/SOB, and pain. Similarities observed between long COVID and other post-acute infection syndromes may help formulate protocols to manage and promote recovery for long COVID patients. Inconsistencies were evident, particularly with a lack of adherence to the standardised definitions of long COVID.

10.
Diabetol Metab Syndr ; 14(1): 183, 2022 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-36456992

RESUMO

INTRODUCTION: Diabetic foot ulcers (DFU) are one of the leading long-term complications experienced by patients with diabetes. Dipeptidyl Peptidase 4 inhibitors (DPP4is) are a class of antihyperglycemic medications prescribed to patients with diabetes to manage glycaemic control. DPP4is may also have a beneficial effect on DFU healing. This study aimed to determine vildagliptin's effect on inflammatory markers and wound healing. TRIAL DESIGN: Prospective, randomized, double-blind, placebo-controlled, single-center study. METHODS: Equal number of participants were randomized into the treatment and placebo groups. The treatment was for 12 weeks, during which the participants had regular visits to the podiatrist, who monitored their DFU sizes using 3D camera, and blood samples were taken at baseline, six weeks, and 12 weeks during the study for measurement of inflammatory markers. In addition, demographic characteristics, co-morbidities, DFU risk factors, and DFU wound parameters were recorded. RESULTS: 50 participants were recruited for the study, with 25 assigned to placebo and 25 to treatment group. Vildagliptin treatment resulted in a statistically significant reduction of HBA1c (p < 0.02) and hematocrit (p < 0.04), total cholesterol (p < 0.02), LDL cholesterol (p < 0.04), and total/HDL cholesterol ratio (P < 0.03) compared to the placebo group. Also, vildagliptin had a protective effect on DFU wound healing, evidenced by the odds ratio (OR) favoring the intervention of 11.2 (95% CI 1.1-113.5; p < 0.04) and the average treatment effect on the treated (ATET) for vildagliptin treatment group showed increased healing by 35% (95%CI; 10-60, p = 0.01) compared to placebo with the model adjusted for microvascular complications, smoking, amputation, dyslipidemia, peripheral vascular disease (PVD) and duration of diabetes. CONCLUSIONS: Vildagliptin treatment was effective in healing DFU in addition to controlling the diabetes. Our findings support the use of DPP4is as a preferred option for treating ulcers in patients with diabetes. Further studies on a larger population are warranted to confirm our findings and understand how DPP4is could affect inflammation and DFU healing.

11.
Front Med (Lausanne) ; 9: 976980, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36452896

RESUMO

Little is known on the sex-specific healing responses after an anterior cruciate ligament (ACL) rupture. To address this, we compared male and female Sprague-Dawley rats following non-surgical ACL rupture. Hematology, inflammation, joint swelling, range of motion, and pain-sensitivity were analyzed at various times over 31-days. Healing was assessed by histopathology and gene expression changes in the ACL remnant and adjacent joint tissues. In the first few days, males and females showed similar functional responses after rupture, despite contrasting hematology and systemic inflammatory profiles. Sex-specific differences were found in inflammatory, immune and angiogenic potential in the synovial fluid. Histopathology and increased collagen and fibronectin gene expression revealed significant tissue remodeling in both sexes. In the ACL remnant, however, Acta2 gene expression (α-SMA production) was 4-fold higher in males, with no change in females, indicating increased fibroblast-to-myofibroblast transition with higher contractile elements (stiffness) in males. Females had 80% lower Pparg expression, which further suggests reduced cellular differentiation potential in females than males. Sex differences were also apparent in the infrapatellar fat pad and articular cartilage. We conclude females and males showed different patterns of healing post-ACL rupture over 31-days, which may impact timing of reconstruction surgery, and possibly clinical outcome.

13.
Res Social Adm Pharm ; 18(10): 3766-3774, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35581127

RESUMO

BACKGROUND: The primary health care management of chronic disease affecting Aboriginal and Torres Strait Islander peoples requires healthcare quality and equity demands to be met, and systems that foster better team-based care. Non-dispensing pharmacists (NDPs) integrated within primary healthcare settings can enhance the quality of patient care, although factors that enable or challenge integration within these settings need to be better understood. OBJECTIVES: To investigate enabling factors and barriers influencing integration of NDPs within Aboriginal community-controlled health services delivering primary health care. This was achieved through qualitative evaluation of the Integrating Pharmacists within Aboriginal Community Controlled Health Services (IPAC) Trial exploring the perceptions of NDPs, community pharmacists, healthcare staff, managers, and Aboriginal and Torres Strait Islander patients of these services. METHODS: NDPs were employed across twenty urban, rural, and remote services in three Australian states and provided pre-defined medication-related roles to adult Aboriginal and Torres Strait Islander patients. Perceptions were elicited from online surveys, interviews, and focus groups. Transcripts were thematically analyzed using the constant comparison method to identify, compare, and refine emerging themes. RESULTS: One hundred and four participants informed the findings, including 24 NDPs, 13 general practitioners, 12 service managers, 10 community pharmacists, 17 health service staff, and 17 patients. Enablers of integration included: personal (previous experience with Aboriginal and Torres Strait Islander peoples, cultural awareness, skills, individual attributes); health service-related (induction programs, Aboriginal Health Worker support, team-building initiatives); and community-related factors (engaged community elders, leaders, cultural mentors, community pharmacy champions). Barriers to NDP integration included a lack of systems supports for patients and staff to adapt to NDP roles, health service factors, travel requirements, a lack of community linkages, and time and budget constraints. CONCLUSIONS: NDP integration within primary health care services has potential to enhance medication-related services to Aboriginal and Torres Strait Islander peoples if enabling factors are supported and health systems and adequate resources facilitate the integration of pharmacists within these settings.


Assuntos
Serviços de Saúde do Indígena , Adulto , Idoso , Austrália , Humanos , Havaiano Nativo ou Outro Ilhéu do Pacífico , Farmacêuticos , Atenção Primária à Saúde
14.
Cytokine Growth Factor Rev ; 64: 7-11, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35115234

RESUMO

Osteoporosis results from dysregulated bone remodeling with increased osteoclast-mediated destruction of bones. We have recently shown in vitro the truncated tryptophanyl-tRNA synthetase (mini-TrpRS)-dependent action of interferon-gamma (IFN-γ) to promote myeloid lineage multinucleation, a fundamental step in the osteoclast formation. In particular, we found that IFN-γ readily induced monocyte aggregation leading to multinuclear giant cell formation that paralleled marked upregulation of mini-TrpRS. However, blockade of mini-TrpRS with its cognate amino acid and decoy substrate D-Tryptophan prevented mini-TrpRS signaling, and markedly reduced the aggregation of monocytes and multinucleation in the presence of IFN. The cell signaling mechanism executed by mini-TrpRS appears inevitably in any inflammatory environment that involves IFN-γ with outcomes depending on the cell type involved. Here, we elaborate on these findings and discuss the potential role of the IFN-γ/mini-TrpRS signaling axis in osteoporosis pathophysiology, which may eventually materialize in a novel therapeutic perspective for this disease.


Assuntos
Osteoporose , Triptofano-tRNA Ligase , Humanos , Interferon gama , Osteoporose/tratamento farmacológico , Ligação Proteica , Transdução de Sinais , Triptofano-tRNA Ligase/química , Triptofano-tRNA Ligase/genética , Triptofano-tRNA Ligase/metabolismo
15.
J Surg Res ; 275: 16-28, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35219247

RESUMO

INTRODUCTION: The liver has a remarkable capacity to regenerate but not the resected lobe. Our aim was to examine the expression of a number of key genes of metabolism, proliferation, survival, and reprogramming 5 mm inside the resected margin following resuscitation with adenosine, lidocaine, and Mg2+ (ALM) therapy. MATERIALS AND METHODS: Anesthetized adult male Sprague-Dawley rats randomly assigned to ALM treatment (n = 10) or Saline controls (n = 10) underwent liver resection (60% left lateral lobe) and uncontrolled bleeding. After 15 min, 3% NaCl ± ALM bolus was administered, and after 60 min, a 4 h 0.9% NaCl ± ALM stabilization 'drip' was commenced. After 72 h monitoring (or high moribund score), histopathology, inflammatory mediators, and relative expression of key genes of tissue repair were measured in the remaining left lateral liver. RESULTS: ALM animals survived 72 h compared to 23 h for Saline controls (P = 0.002). In the surgical margin, ALM therapy showed preservation of cellular architecture, whereas controls had increased inflammation and diffuse necrosis. Liver proinflammatory cytokines were also 2- to 4-fold higher in Saline controls. ALM therapy dramatically suppressed (∼70%) gene expression of four adenosine receptors, metabolic signaling, autophagy, apoptosis, and cell proliferation compared to controls, including suppression of the Yamanaka factors by up to 85%. CONCLUSIONS: We conclude ALM therapy preserved hepatocyte architecture with less inflammation and necrosis 3 days after resection, hemorrhage, and shock. In addition, ALM induced cellular quiescence in the surgical margin, which may be a strategy for improved barrier protection and healing. Further studies are required to address this question.


Assuntos
Choque Hemorrágico , Choque , Animais , Modelos Animais de Doenças , Hemorragia/terapia , Inflamação , Fígado/cirurgia , Magnésio , Masculino , Margens de Excisão , Necrose , Ratos , Ratos Sprague-Dawley , Ressuscitação , Choque Hemorrágico/terapia
16.
Diabetes Metab Syndr ; 16(2): 102397, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35085918

RESUMO

BACKGROUND AND AIMS: The study aimed at determining prevalence and risk factors (RFs) of diabetic lower limb amputations (LLAs). METHODS: Electronic databases including PubMed, Medline, Web of Science, and Cochrane Library were searched from January 2003 to April 2021. RESULTS: Sixteen full-text published studies were reviewed. The prevalence of LLAs stood as high as 66%, with a combined prevalence of 19% (95% CI 10-29) using the random-effects model. The most prominent RFs for LLA were duration of diabetes mellitus (DM), age, renal impairment, and ethnic minority. Amongst Australians, Indigenous background is strongly associated with increased risk of the diabetic foot (DF) LLA. CONCLUSIONS: LLAs are considerably prevalent amongst patients with the DF and occur at even higher rates in patients with multimorbidity.


Assuntos
Diabetes Mellitus , Pé Diabético , Extremidade Inferior , Amputação Cirúrgica/estatística & dados numéricos , Austrália/epidemiologia , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/cirurgia , Pé Diabético/epidemiologia , Pé Diabético/cirurgia , Humanos , Extremidade Inferior/cirurgia , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Prevalência , Fatores de Risco
17.
Trends Cardiovasc Med ; 32(3): 138-142, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-33571665

RESUMO

Atherosclerosis demonstrates an increased rate of vascular smooth muscle cells (VSMC) plasticity characterized by switching from the differentiated contractile phenotype to a de-differentiated synthetic state. In healthy blood vessels, phenotypic switching represents a fundamental property of VSMC in maintaining vascular homeostasis. However, in atherosclerosis, it is an initial and necessary step in VSMC-derived foam cell formation. These foam cells play a decisive role in atherosclerosis progression since approximately half of all the foam cells are of VSMC origin. Our recent work showed that interferon-gamma (IFN-γ), a primary inflammatory cytokine in progressive atherosclerosis, mediates VSMC phenotype switching exclusively through upregulating mini-tryptophanyl-tRNA synthetase (mini-TrpRS). Here, we discuss the pro-atherosclerotic implication of this phenomenon that inevitably occurs in the context of a more complex regulation mediated by IFN-γ. An emerging therapeutic option for patients with progressive atherosclerosis is also discussed.


Assuntos
Aterosclerose , Citocinas , Aterosclerose/terapia , Humanos , Músculo Liso Vascular , Miócitos de Músculo Liso , Fenótipo , Transdução de Sinais
18.
Burns ; 48(3): 555-567, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34686390

RESUMO

BACKGROUND: Pain associated with surgical or enzymatic burn wound debridement prevents many burn centres from working outside an operating theatre, creating a burden. Alternatives for general anaesthesia to manage pain in burn patients treated with enzymatic debridements, such as regional anaesthesia, have not been studied in detail. This study explores the different possibilities for pain management during a bedside NexoBrid™ procedure. MATERIAL AND METHODS: We performed a single-centre retrospective study that included 82 paediatric, adolescent, and adult patients with deep dermal and full-thickness burns treated bedside with NexoBrid™ under regional or general anaesthesia. Outcome measures were pain during the NexoBrid™ procedure, the safety of the anaesthesia and the NexoBrid™ procedure, logistics of the bedside NexoBrid™ procedure, and time to wound closure. RESULTS: Forty-three patients in the adult group (43/67, 64%) only presented with burn wounds on one upper or the one or two lower extremities. In 29 of them (29/43, 67%), a NexoBrid™ procedure was performed under regional anaesthesia, which resulted in low pain levels without any adverse events. All seven patients in the paediatric group, where only one upper or one or two lower limbs were involved (7/15, 47%), underwent a NexoBrid™ procedure performed under regional anaesthesia where no adverse events were reported. In these children, the use of regional anaesthesia was associated with a significant decrease in time to wound closure (average treatment effect on the treated = -22.5 days, p = 0.021). CONCLUSION: This study highlights that regional anaesthesia administered at the bedside should be the method of choice for pain management during NexoBrid™ procedures because often, it can be adequately and safely performed in all age groups. This approach will reduce the burden on operating theatres. A flow chart has been developed to guide pain management during a NexoBrid™ procedure.


Assuntos
Bromelaínas , Queimaduras , Adolescente , Adulto , Anestesia Geral , Bromelaínas/uso terapêutico , Queimaduras/cirurgia , Queimaduras/terapia , Criança , Desbridamento/métodos , Humanos , Dor/etiologia , Manejo da Dor/métodos , Estudos Retrospectivos , Cicatrização
19.
J Burn Care Res ; 43(4): 889-898, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34751384

RESUMO

Dressings used to manage donor site wounds (DSWs) have up to 40% of patients experiencing complications that may cause suboptimal scarring. We evaluated the efficacy and safety of a portable electrospun nanofibrous matrix that provides contactless management of DSWs compared with standard dressing techniques. This study included adult patients who underwent an excised split-thickness skin graft (STSG) with a DSW area of 10 to 200 cm2. Patients were allocated into two groups; ie, the nanofiber group managed with a nanofibrous polymer-based matrix, and the control group managed using the standard of care such as Jelonet® or Biatain® Ibu dressing. Primary outcomes were postoperative dermal healing efficacy assessed by Draize scores. The time to complete re-epithelialization was also recorded. Secondary outcomes included postoperative adverse events, pain, and infections during the first 21 days and extended 12-month follow-up. The itching and scarring were recorded during the extended follow-up (months 1, 3, 6, 9, and 12) using Numerical-Analogue-Score and Vancouver scores, respectively. The nanofiber and control groups included 21 and 20 patients, respectively. The Draize dermal irritation scores were significantly lower in the nanofiber vs control group (Z = -2.509; P = .028) on the first postoperative day but became similar afterward (Z ≥ -1.62; P ≥ .198). In addition, the average time to re-epithelialization was similar in the nanofiber (17.9 ± 4.4 days) and control group (18.3 ± 4.5 days; Z = -0.299; P = .764), so were postoperative adverse events, pain, and infection incidence, itching and scarring. The safety and efficacy of electrospun nanofibrous matrix are similar to standard wound care allowing its use as an alternative donor site dressing following the STSG excision.


Assuntos
Queimaduras , Nanofibras , Adulto , Queimaduras/cirurgia , Cicatriz/etiologia , Humanos , Nanofibras/uso terapêutico , Dor/etiologia , Polímeros , Estudos Prospectivos , Prurido/etiologia , Transplante de Pele/métodos , Sítio Doador de Transplante/cirurgia , Cicatrização
20.
Shock ; 57(2): 264-273, 2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-34798632

RESUMO

ABSTRACT: Excessive sympathetic outflow following trauma can lead to cardiac dysfunction, inflammation, coagulopathy, and poor outcomes. We previously reported that buprenorphine analgesia decreased survival after hemorrhagic trauma. Our aim is to examine the underlying mechanisms of mortality in a non-compressible hemorrhage rat model resuscitated with saline or adenosine, lidocaine, magnesium (ALM). Anesthetized adult male Sprague-Dawley rats were randomly assigned to Saline control group or ALM therapy group (both n = 10). Hemorrhage was induced by 50% liver resection. After 15 min, 0.7 mL/kg 3% NaCl ±â€ŠALM intravenous bolus was administered, and after 60 min, 0.9% NaCl ±â€ŠALM was infused for 4 h (0.5 mL/kg/h) with 72 h monitoring. Animals received 6-12-hourly buprenorphine for analgesia. Hemodynamics, heart rate variability, echocardiography, and adiponectin were measured. Cardiac tissue was analyzed for adrenergic/cholinergic receptor expression, inflammation, and histopathology. Four ALM animals and one Saline control survived to 72 h. Mortality was associated with up to 97% decreases in adrenergic (ß-1, α-1A) and cholinergic (M2) receptor expression, cardiac inflammation, myocyte Ca2+ loading, and histopathology, indicating heart ischemia/failure. ALM survivors had higher cardiac output and stroke volume, a 30-fold increase in parasympathetic/sympathetic receptor expression ratio, and higher circulating adiponectin compared to Saline controls. Paradoxically, Saline cardiac adiponectin hormone levels were higher than ALM, with no change in receptor expression, indicating intra-cardiac synthesis. Mortality appears to be a "systems failure" associated with CNS dysregulation of cardiac function. Survival involves an increased parasympathetic dominance to support cardiac pump function with reduced myocardial inflammation. Increased cardiac α-1A adrenergic receptor in ALM survivors may be significant, as this receptor is highly protective during heart dysfunction/failure.


Assuntos
Adenosina/administração & dosagem , Hidratação , Lidocaína/administração & dosagem , Magnésio/administração & dosagem , Sistema Nervoso Parassimpático/fisiopatologia , Choque Hemorrágico/fisiopatologia , Choque Hemorrágico/terapia , Sistema Nervoso Simpático/fisiopatologia , Animais , Modelos Animais de Doenças , Combinação de Medicamentos , Masculino , Ratos , Ratos Sprague-Dawley
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