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1.
Clin Infect Dis ; 76(4): 713-719, 2023 02 18.
Artigo em Inglês | MEDLINE | ID: mdl-35724239

RESUMO

BACKGROUND: Social distancing policy was introduced in Israel in 2020 to reduce the spread of coronavirus disease 2019 (COVID-19). The aim of this study was to analyze the effect of social distancing on other infections in children, by comparing disease rate and healthcare utilization before and after social distancing. METHODS: This was a before-and-after study. Within this retrospective database analysis of parallel periods in 2019 (periods 1 and 2) and 2020 (periods 3 [prelockdown period] and 4 [lockdown period]) we included all pediatric population registered in the electronic medical records of the Maccabi Healthcare Services, Israel, looking at the occurrence of non-COVID-19 infections, antibiotic purchasing, physician visits, ambulatory emergency care center visits, emergency department visits, and hospitalizations. RESULTS: A total of 776 828 children were included from 2019, and 777 729 from 2020. We found a lower infection rate in 2020 versus 2019. We did not find a difference in infection rate between periods 1 and 2, while there was a significant difference between periods 3 and 4. We found a significant difference between periods 2 and 4, with a higher RR than for the comparison between periods 1 and 3. There was a modest decrease in ambulatory emergency care center visits in 2020, and lower increases in emergency department visits and hospital admissions. We found decreases in antibiotic purchasing between periods 1 and 3 and between periods 2 and 4, more pronounced in 2020 than in 2019. CONCLUSIONS: Analysis of findings before and after social distancing and masking showed reduced prevalence of non-COVID-19 pediatric infections and reduced consumption of healthcare services and antibiotics related with the lockdown period.


Assuntos
COVID-19 , Criança , Humanos , COVID-19/epidemiologia , Estudos Retrospectivos , Pandemias , SARS-CoV-2 , Distanciamento Físico , Controle de Doenças Transmissíveis , Aceitação pelo Paciente de Cuidados de Saúde , Serviço Hospitalar de Emergência
2.
Sensors (Basel) ; 23(17)2023 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-37687865

RESUMO

Combat soldiers are currently faced with using a hearing-protection device (HPD) at the cost of adequately detecting critical signals impacting mission success. The current study tested the performance of the Perforated-Concave-Earplug (pCEP), a proof-of-concept passive HPD consisting of a concave bowl-like rigid structure attached to a commercial roll-down earplug, designed to improve sound localization with minimal compromising of noise attenuation. Primarily intended for combat/military training settings, our aim was an evaluation of localization of relevant sound sources (single/multiple gunfire, continuous noise, spoken word) compared to 3M™-Combat-Arms™4.1 earplugs in open-mode and 3M™-E-A-R™-Classic™ earplugs. Ninety normal-hearing participants, aged 20-35 years, were asked to localize stimuli delivered from monitors evenly distributed around them in no-HPD and with-HPD conditions. The results showed (1) localization abilities worsened using HPDs; (2) the spoken word was localized less accurately than other stimuli; (3) mean root mean square errors (RMSEs) were largest for stimuli emanating from rear monitors; and (4) localization abilities corresponded to HPD attenuation levels (largest attenuation and mean RMSE: 3M™-E-A-R™-Classic™; smallest attenuation and mean RMSE: 3M™-Combat-Arms™4.1; pCEP was mid-range on both). These findings suggest that the pCEP may benefit in military settings by providing improved sound localization relative to 3M™ E-A-R™-Classic™ and higher attenuation relative to 3M™-Combat Arms™-4.1, recommending its use in noisy environments.


Assuntos
Militares , Localização de Som , Humanos , Dispositivos de Proteção das Orelhas , Som
3.
Chron Respir Dis ; 20: 14799731231198865, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37612250

RESUMO

BACKGROUND: Respiratory rate (RR) is used for the diagnosis and management of medical conditions and can predict clinical changes. Heavy workload, understaffing, and errors related to poor recording make it underutilized. Wearable devices may facilitate its use. METHODS: RR measurements using a wearable photoplethysmography-based monitor were compared with medical grade devices in complementary clinical scenarios: Study one included a comparison to a capnograph in 35 healthy volunteers; Study two included a comparison to a ventilator monitor in 18 ventilated patients; and Study three included a comparison to capnograph in 92 COVID-19 patients with active pulmonary disease. Pearson's correlations and Bland-Altman analysis were used to assess the accuracy and agreement between the measurement techniques, including stratification for Body Mass Index (BMI) and skin tone. Statistical significance was set at p ≤ 0.05. RESULTS: High correlation was found in all studies (r = 0.991, 0.884, and 0.888, respectively, p < 0.001 for all). 95% LOA of ±2.3, 1.7-(-1.6), and ±3.9 with a bias of < 0.1 breaths per minute was found in Bland-Altman analysis in studies 1,2, and 3, respectively. In all, high accordance was found in all sub-groups. CONCLUSIONS: RR measurements using the wearable monitor were highly-correlated with medical-grade devices in various clinical settings. TRIAL REGISTRATION: ClinicalTrials.gov, https://clinicaltrials.gov/ct2/show/NCT03603860.


Assuntos
Taxa Respiratória , Dispositivos Eletrônicos Vestíveis , Humanos , Índice de Massa Corporal , Monitorização Fisiológica/métodos
4.
Lasers Surg Med ; 53(10): 1376-1385, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34101208

RESUMO

BACKGROUND AND OBJECTIVES: Anterior knee pain (AKP) is the most common knee pathology in athletes and occurs in 15% of army recruits of elite units during basic training. Of these, 50% are symptomatic 6 years later. Photobiomodulation (PBM) is a nonthermal red-to-near-infrared irradiation used for pain reduction of a variety of etiologies. This study was designed to determine whether addition of PBM to physiotherapy (PT) for AKP in combat soldiers is superior to PT alone. STUDY DESIGN/MATERIALS AND METHODS: In this prospective, double-blind, sham-controlled, randomized clinical trial (NCT02845869), 26 combat soldiers/policemen (male:female, 15:11; body mass index [BMI] = 24.2 ± 3.9, n = 46 knees), with AKP due to overuse/load, received 4 weeks of PT + sham (PT + Sham) or active PBM (wavelength = 660 and 850 nm, pulsing = 2.5 Hz, LED power = 50 mW/cm2 [local tissue/regional lymph nodes]; 810 nm continuous beam, laser cluster 6 W/cm2 [analgesia] and laser pointer 4.75 W/cm2 [trigger points]) (PT + PBM). The main outcome measures were subjective pain by visual analog scale (VAS) (0 [none]-100 [intolerable]) and functional disability by Kujala score (0 [worst]-100 [best]). Evaluations were carried out at baseline, end of treatments, and 3-month follow-up. RESULTS: All participants completed the treatment protocol without any reported adverse device effects. Post-treatment pain was significantly reduced in the PT+PBM group, compared with baseline and sham (Δpain, VAS, mean ± SD: PT + PBM = -19 ± 23, P = 0.002; PT + Sham = -6 ± 21, P = 0.16; between groups, P = 0.032). At 3-month follow-up, pain reduction was similar between groups; however, the Kujala score was significantly improved only in the PBM-treated group (ΔKujala: PT + PBM = 11 ± 10, P = 0.003; PT + Sham = 5 ± 7, P = 0.059). CONCLUSIONS: Addition of PBM to PT for AKP resulted in earlier reduction in pain and improved functionality, compared with PT alone. This noninvasive, nonpharmacologic, adjunctive therapeutic modality can be easily incorporated into team healthcare frameworks or end units and may lead to earlier return to competition or combat-level service. Lasers Surg. Med. © 2021 Wiley Periodicals LLC.


Assuntos
Terapia com Luz de Baixa Intensidade , Militares , Feminino , Humanos , Masculino , Dor/etiologia , Modalidades de Fisioterapia , Estudos Prospectivos
5.
Minim Invasive Ther Allied Technol ; 30(1): 40-46, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31566510

RESUMO

INTRODUCTION: Thoracic injuries account for 20-25% of trauma-related deaths. In cases of pneumothorax the insertion of a chest tube is mandatory but associated with high complication rates particularly when inserted under difficult conditions. The C-Lant is a novel chest-tube insertion device that provides integrated double fixation capabilities and can be used by responders with minimal experience. The aim of the study was to test the device in a large animal model. MATERIAL AND METHODS: Pneumothorax, tension pneumothorax, and hemothorax were induced in four white domestic female pigs. The C-Lant device (Vigor Medical Technologies, Haifa, Israel) was inserted as any chest-drain to decompress the thorax. Pull test was applied to test the strength of device fixation. RESULTS: The insertion of the device was simple and effective without detectable negative physiological effects. Reliable fixation was achieved without difficulty. Air and liquid were promptly drained from the chest cavity. Minimal tissue laceration occurred when applying the device in a scenario of erroneous pneumothorax diagnosis with fully expanded lungs. Interconnection with other surgical accessories was smooth. CONCLUSION: The C-Lant is a novel device that facilitates easy insertion and fixation of chest-tubes by minimally experienced medical providers and reduces the likelihood of unwanted expulsion. Clinical studies are planned.


Assuntos
Pneumotórax , Traumatismos Torácicos , Animais , Tubos Torácicos , Drenagem , Feminino , Hemotórax/etiologia , Pneumotórax/cirurgia , Suínos
6.
Transfusion ; 59(11): 3485-3490, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31568580

RESUMO

BACKGROUND: This study evaluated the effect of routine, uncontrolled, Israeli field storage conditions on the stability and efficacy of Lyo-Plas N freeze-dried plasma (FDP). We evaluated clotting factors V, VIII, and XI; proteins S and C; fibrinogen; partial thromboplastin time (PTT); antithrombin III (ATIII); von Willebrand factor (VWF); and international normalized ratio (INR) in FDP stored at 4°C, 25°C, and 40°C for 6 and 12 months, as well as FDP returned from field units after uncontrolled storage for 15 months (manufacturer's shelf life). METHODS AND MATERIALS: After reconstitution, clotting factor levels were compared to those of freshly supplied FDP doses. RESULTS: At 4°C for 12 months, factor V decreased slightly. At 25°C, average fibrinogen and factor V content were significantly lower at both periods, and INR was higher after 12 months. At 40°C, all samples were out of normal range in at least one clotting factor after 6 or 12 months. After field storage for 15 months, fibrinogen, factors V and XI, PTT, and protein S were significantly decreased, and INR increased. However, these levels were still within laboratory norms. Statistically significant difference in clotting factors compared to laboratory normal range was found in INR (higher) and factor V (lower). CONCLUSIONS: Our data show minimal decreases in clotting factors in FDP after storage under field conditions, when compared to laboratory normal ranges. Along with the many advantages of FDP, this supports its use at the point of injury under battlefield conditions, despite uncontrolled storage environments. Under controlled storage conditions at 4°C, shelf life could possibly be extended, although further study is required.


Assuntos
Preservação de Sangue , Liofilização , Plasma , Fator V/análise , Humanos , Coeficiente Internacional Normatizado , Tempo de Tromboplastina Parcial , Temperatura
7.
Brain ; 140(6): 1692-1705, 2017 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-28444141

RESUMO

A biomarker that will enable the identification of patients at high-risk for developing post-injury epilepsy is critically required. Microvascular pathology and related blood-brain barrier dysfunction and neuroinflammation were shown to be associated with epileptogenesis after injury. Here we used prospective, longitudinal magnetic resonance imaging to quantitatively follow blood-brain barrier pathology in rats following status epilepticus, late electrocorticography to identify epileptic animals and post-mortem immunohistochemistry to confirm blood-brain barrier dysfunction and neuroinflammation. Finally, to test the pharmacodynamic relevance of the proposed biomarker, two anti-epileptogenic interventions were used; isoflurane anaesthesia and losartan. Our results show that early blood-brain barrier pathology in the piriform network is a sensitive and specific predictor (area under the curve of 0.96, P < 0.0001) for epilepsy, while diffused pathology is associated with a lower risk. Early treatments with either isoflurane anaesthesia or losartan prevented early microvascular damage and late epilepsy. We suggest quantitative assessment of blood-brain barrier pathology as a clinically relevant predictive, diagnostic and pharmaco!dynamics biomarker for acquired epilepsy.


Assuntos
Anestésicos Inalatórios/farmacologia , Bloqueadores do Receptor Tipo 1 de Angiotensina II/farmacologia , Barreira Hematoencefálica/diagnóstico por imagem , Barreira Hematoencefálica/fisiopatologia , Isoflurano/farmacologia , Losartan/farmacologia , Imageamento por Ressonância Magnética/métodos , Estado Epiléptico/diagnóstico por imagem , Estado Epiléptico/fisiopatologia , Anestesia por Inalação , Anestésicos Inalatórios/administração & dosagem , Bloqueadores do Receptor Tipo 1 de Angiotensina II/administração & dosagem , Animais , Biomarcadores , Barreira Hematoencefálica/efeitos dos fármacos , Modelos Animais de Doenças , Eletrocorticografia , Isoflurano/administração & dosagem , Losartan/administração & dosagem , Masculino , Estudos Prospectivos , Ratos , Ratos Sprague-Dawley , Estado Epiléptico/tratamento farmacológico
8.
Acta Radiol ; 58(12): 1519-1527, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28304179

RESUMO

Background Microcephaly is one of the most common fetal structural abnormalities, and prenatal microcephaly is considered a group I malformation of cortical development diagnosed according to ultrasound (US) skull measurements. Purpose To evaluate the agreement between fetal head US and magnetic resonance imaging (MRI) biometric measurements of suspected microcephalic fetuses. Material and Methods This institutional review board-approved retrospective study with waived informed consent included 180 pregnant women and was conducted at our medical center from March 2011 to April 2013. Biparietal diameter (BPD) and occipitofrontal diameter (OFD) results of fetal head US normograms were compared to normograms for MRI. We used Pearson and Spearman rho non-parametric correlation coefficients to assess the association between two quantitative variables, paired t-test for paired quantitative variables, and McNemar test for paired qualitative variables. Results The average BPD but not the average OFD percentiles in fetal head US differed significantly from the MRI results ( P < 0.0001). When looking at the accepted microcephaly threshold, both BPD and OFD percentiles differed significantly from MRI ( P < 0.0001 and P < 0.004, respectively). There was no correlation between US-measured skull biometry and MRI-measured brain biometry. Estimated cerebrospinal fluid volumes were significantly lower in the study group compared to 120 fetuses with normal findings in prenatal head US and MRI. Also, we have created a MRI-based normogram of fetal head circumference and gestational age. Conclusion The diagnosis of microcephaly by US alone may be insufficient and ideally should be validated by MRI before a final diagnosis is established.


Assuntos
Biometria/métodos , Cabeça/diagnóstico por imagem , Cabeça/embriologia , Imageamento por Ressonância Magnética/métodos , Microcefalia/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Feminino , Humanos , Masculino , Microcefalia/embriologia , Gravidez , Diagnóstico Pré-Natal/métodos , Reprodutibilidade dos Testes , Estudos Retrospectivos
9.
Int J Mol Sci ; 18(9)2017 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-28878165

RESUMO

The liver toxicity of valproic acid (VPA) is an established side effect of this widely used antiepileptic drug, which is extremely problematic for patients with metabolic epilepsy and particularly epilepsy due to mitochondrial dysfunction. In the present report, we investigated the reason for liver mitochondrial toxicity of VPA and several acid and amide VPA analogues. While the pyruvate and 2-oxoglutarate oxidation rates of rat brain mitochondria were nearly unaffected by VPA, rat liver mitochondrial pyruvate and 2-oxoglutarate oxidation was severely impaired by VPA concentrations above 100 µM. Among the reactions involved in pyruvate oxidation, pyruvate transport and dehydrogenation steps were not affected by VPA, while α-lipoamide dehydrogenase was strongly inhibited. Strong inhibition of α-lipoamide dehydrogenase was also noted for the VPA one-carbon homolog sec -butylpropylacetic acid (SPA) and to a lesser extent for the VPA constitutional isomer valnoctic acid (VCA), while the corresponding amides of the above three acids valpromide (VPD), sec -butylpropylacetamide (SPD) and valnoctamide (VCD) showed only small effects. We conclude that the active inhibitors of pyruvate and 2-oxoglutarate oxidation are the CoA conjugates of VPA and its acid analogues affecting selectively α-lipoamide dehydrogenase in liver. Amide analogues of VPA, like VCD, show low inhibitory effects on mitochondrial oxidative phosphorylation in the liver, which might be relevant for treatment of patients with mitochondrial epilepsy.


Assuntos
Amidas/metabolismo , Fígado/metabolismo , Ácido Valproico/toxicidade , Animais , Di-Hidrolipoamida Desidrogenase/metabolismo , Fígado/efeitos dos fármacos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Mitocôndrias Hepáticas/efeitos dos fármacos , Mitocôndrias Hepáticas/metabolismo , Ácido Pirúvico/metabolismo , Ratos
10.
Am J Emerg Med ; 34(10): 1986-1990, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27431736

RESUMO

We aimed to evaluate the performance of medical personnel in using the IB1 topical protective lotion on their hands and wrists together with standard disposable medical gloves, compared to standard-issued medical chemical protective gloves. This randomized cross-over study included 144 medical personnel. Primary endpoints were time-to-completion of autoinjection; success rate, number of attempts, and time-to-achieve successful endotracheal intubation; time-to-achieve satisfactory tube fixation; time-to-draw and inject the content of an ampoule; and the total time-to-perform all medical procedures. Secondary endpoints included the subjective assessment of convenience to perform these four procedures with each protective measure. Mean time was significantly shorter using IB1 compared to chemical protective gloves for tube fixation, ampoule drawing, and the total time-to-perform all procedures (58.6±22.7 seconds vs. 71.7±29.7; 31.5±21.8 vs. 38.2±19.4; 137.4±56.1 vs. 162.5±63.6, respectively; P<.001 for all). For all medical procedures, the use of IB1 was reported as significantly more convenient than the use of chemical protective gloves (P<.001 for all comparisons). IB1 with standard medical gloves significantly shorten the time-to-perform medical procedures requiring fine motor dexterities and is subjectively more convenient than chemical protective gloves. IB1 should be considered as an appropriate alternative for medical teams in a chemical event.


Assuntos
Mãos , Substâncias Protetoras/uso terapêutico , Creme para a Pele/uso terapêutico , Administração Cutânea , Adulto , Estudos Cross-Over , Feminino , Luvas Protetoras/efeitos adversos , Humanos , Injeções , Intubação Intratraqueal , Masculino , Substâncias Protetoras/administração & dosagem , Substâncias Protetoras/efeitos adversos , Creme para a Pele/administração & dosagem , Creme para a Pele/efeitos adversos , Seringas , Fatores de Tempo , Adulto Jovem
11.
Ann Intern Med ; 160(9): 644-8, 2014 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-24798526

RESUMO

On the night of 21 August 2013, sarin was dispersed in the eastern outskirts of Damascus, killing 1400 civilians and severely affecting thousands more. This article aims to delineate the clinical presentation and management of a mass casualty event caused by a nerve agent as shown in the social media. Authors searched YouTube for videos uploaded of this attack and identified 210 videos. Of these, 67 met inclusion criteria and were evaluated in the final analysis.These videos displayed 130 casualties; 119 (91.5%) of which were defined as moderately injured or worse. The most common clinical signs were dyspnea (53.0%), diaphoresis (48.5%), and loss of consciousness (40.7%). Important findings included a severe shortage of supporting measures and lack of antidotal autoinjectors. Decontamination, documented in 25% of the videos, was done in an inefficient manner. Protective gear was not noticed, except for sporadic use of latex gloves and surgical masks.This is believed to be the first time that social media was used to evaluate clinical data and management protocols to better prepare against future possible events.


Assuntos
Terrorismo Químico , Incidentes com Feridos em Massa , Sarina/intoxicação , Mídias Sociais , Atropina/uso terapêutico , Criança , Antagonistas Colinérgicos/uso terapêutico , Descontaminação , Planejamento em Desastres , Feminino , Humanos , Lactente , Injeções Intravenosas , Masculino , Intoxicação/complicações , Intoxicação/diagnóstico , Intoxicação/terapia , Síria/epidemiologia
12.
Am J Perinatol ; 32(4): 321-30, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25077471

RESUMO

BACKGROUND: Diagnosis of late onset sepsis (LOS) in very low birth weight (VLBW) preterm infants relies mainly on clinical suspicion, whereas prognosis depends on early initiation of antibiotic treatment. RALIS is a mathematical algorithm for early detection of LOS incorporating six vital signs measured every 2 hours. OBJECTIVE: The aim of this study is to study RALIS ability to detect LOS before clinical suspicion. STUDY DESIGN: A total of 118 VLBW preterm infants (gestational age < 33 weeks, birth weight < 1,500 g) were enrolled in a prospective multicentered study. Vital signs were recorded prospectively up to day 21 of life in a blinded manner, with no effect on standard care. The primary end point was comparison of the rates and timing of detection of LOS between RALIS and clinical/culture evidence of LOS. RESULTS: Of the 2,174 monitoring days, RALIS indicated sepsis in 590 days, and LOS was positively diagnosed in 229 days. Sensitivity, specificity, positive, and negative predictive values were 74.6, 80.7, 38.8, and 95.1%, respectively. RALIS provided an indication for sepsis 3 days on the average before clinical suspicion. CONCLUSION: RALIS has a promising potential as an easy to implement noninvasive early indicator of LOS, especially for ruling out LOS in VLBW high-risk infants.


Assuntos
Algoritmos , Diagnóstico Precoce , Recém-Nascido de muito Baixo Peso , Sepse/diagnóstico , Idade de Início , Peso ao Nascer , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Projetos Piloto , Estudos Prospectivos , Fatores de Risco
13.
Fetal Pediatr Pathol ; 34(6): 400-6, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26470833

RESUMO

Mutations in the TP63 gene have been associated with a variety of ectodermal dysplasia syndromes, among which the clinically overlapping Ankyloblepharon-Ectodermal defects-Cleft lip/palate (AEC) and the Rapp-Hodgkin syndromes. We report a multiplex nonconsanguineous family of Ashkenazi-Jewish descent, in which the index patient presented with a persistent scalp skin lesion, dystrophic nails and light thin hair. Further evaluation revealed over 10 affected individuals in the kindred, over four generations, exhibiting varying degrees of ectodermal involvement. Analysis of the TP63 gene from four of the patients and from two healthy individuals of the same family was performed. Gene sequencing of the patients revealed a nonsense mutation leading to a premature termination codon (PTC) (p.Gln16X). The same mutation was found in all tested affected individuals in the family, but gave rise to marked phenotypic variability with minor clinical manifestations in some individuals, underscoring the clinical heterogeneity associated with the recently described PTC-causing mutations.


Assuntos
Displasia Ectodérmica/genética , Displasia Ectodérmica/patologia , Fatores de Transcrição/genética , Proteínas Supressoras de Tumor/genética , Pré-Escolar , Códon sem Sentido , Análise Mutacional de DNA , Feminino , Genótipo , Humanos , Masculino , Linhagem , Fenótipo , Reação em Cadeia da Polimerase
14.
Epilepsia ; 55(12): 1953-8, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25377630

RESUMO

OBJECTIVE: Organophosphates (OPs) are commonly used insecticides for agriculture and domestic purposes, but may also serve as nerve agents. Exposure to OPs result in overstimulation of the cholinergic system and lead to status epilepticus (SE), a life-threatening condition that is often resistant to treatment. SE is associated with significant neuronal damage, neurocognitive dysfunction, and the development of lifelong epilepsy. Therefore, rapid termination of SE and prevention of brain damage is of high interest. Here we tested the efficacy of sec-butyl-propylacetamide (SPD) and two of its individual stereoisomers, (2S,3S)-SPD and (2R,3R)-SPD, in discontinuing OP-induced seizures. SPD is a one carbon homolog of valnoctamide, a central nervous system (CNS)-active constitutional isomer of valproic acid (VPA) corresponding amide valpromide. METHODS: Rats were implanted with epidural telemetric electrodes to allow electrocorticography (ECoG) recording 24 h prior, during and 24 h after poisoning with the OP paraoxon (at a dose equivalent to 1.4 LD50 Median lethal dose). All rats were provided with antidotal treatment of atropine and toxogonin. Epileptic activity was measured using a novel automated system to evaluate the different effects of midazolam, SPD, and its individual stereoisomers in comparison to nontreated controls. RESULTS: Treatment with SPD or its individual stereoisomer (2S,3S)-SPD significantly shorten paraoxon-induced SE and reduced the duration of recorded pathologic activity after SE was terminated. (2S,3S)-SPD was superior to racemic-SPD in diminishing delayed pathologic epileptiform activity within the first 8 h after SE. SIGNIFICANCE: These results suggest SPD as an efficient drug for the rapid termination of SE and pathological epileptiform activity following OP poisoning, a strategy to reduce neuronal dysfunction and the risk for lifelong epilepsy.


Assuntos
Amidas/uso terapêutico , Anticonvulsivantes/uso terapêutico , Estado Epiléptico/tratamento farmacológico , Ácido Valproico/análogos & derivados , Amidas/química , Animais , Anticonvulsivantes/química , Modelos Animais de Doenças , Eletroencefalografia , Inseticidas/toxicidade , Masculino , Paraoxon/toxicidade , Ratos , Ratos Sprague-Dawley , Estatísticas não Paramétricas , Estado Epiléptico/induzido quimicamente , Estereoisomerismo , Resultado do Tratamento , Ácido Valproico/química , Ácido Valproico/uso terapêutico
15.
Cutan Ocul Toxicol ; 33(4): 317-26, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24641113

RESUMO

OBJECTIVE: Macrophages are known to have key functions in almost every stage of wound healing and there is evidence for their beneficial effects in treating decubital ulcers and deep sternal wound infections in human. This study aimed to investigate the efficacy of a treatment with activated macrophages on ameliorating acute and long-term sulfur mustard (SM) induced skin injuries in the hairless guinea pig (HGP) model. METHODS: HGP were exposed to SM vapor and treated with either a single or multiple intra-dermal injections of human activated macrophages in suspension (hAMS) into the wound bed. Clinical and histological evaluations were conducted up to 4 weeks post-exposure. RESULTS: A single treatment with hAMS early after exposure (15 min and 6 h) resulted in a reduction in the number of damaged cells and vesications in the epidermis at 24 h. A substantial increase in cellular infiltration, mostly polymorphonuclears, was taking place in the hAMS-treated animals starting as early as 1 h after exposure. This flow of inflammatory cells continued, in the treated group, for at least 4 weeks, long after the injected macrophages were not detected. Repeated injections of hAMS (15 min, 48 h and 7 d post-exposure) decreased significantly the area of the wounds and improved the integrity of the barrier function as expressed by measuring trans-epidermal water loss up to 10 d. CONCLUSIONS: Our results indicate that the role of macrophages in wound healing is complex; their efficacy may depend on the timing of administration. Further investigation is required to determine whether they are required during the early phase of wound development and/or during the late phase of scar formation and remodeling.


Assuntos
Queimaduras Químicas/terapia , Terapia Baseada em Transplante de Células e Tecidos/métodos , Substâncias para a Guerra Química , Macrófagos , Gás de Mostarda/toxicidade , Animais , Queimaduras Químicas/patologia , Cobaias , Masculino , Metaloproteinase 2 da Matriz/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , Pele/patologia , Perda Insensível de Água , Cicatrização
16.
Harefuah ; 153(3-4): 180-3, 238, 2014.
Artigo em Hebraico | MEDLINE | ID: mdl-24791561

RESUMO

Infant botulism is a paralytic syndrome which manifests as a result of ingesting spores of the toxin secreting bacterium Clostridium botulinum by infants. As opposed to botulism in adults, treating infant botulism with horse antiserum was not approved due to several safety issues. This restriction has led to the development of Human Botulism Immune Globulin Intravenous (BIG-IV; sells under BabyBIG). In this article we review infant botulism and the advantages of treating it with BIG-IV.


Assuntos
Botulismo/tratamento farmacológico , Imunoglobulinas/uso terapêutico , Fatores Imunológicos/uso terapêutico , Fatores Etários , Botulismo/microbiologia , Botulismo/fisiopatologia , Clostridium botulinum/isolamento & purificação , Humanos , Lactente
17.
Biomedicines ; 12(6)2024 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-38927384

RESUMO

Intradialytic hypotension (IDH) is a severe complication of hemodialysis (HD) with a significant impact on morbidity and mortality. In this study, we used a wearable device for the continuous monitoring of hemodynamic vitals to detect hemodynamic changes during HD and attempted to identify IDH. End-stage kidney disease patients were continuously monitored 15 min before starting the session and until 15 min after completion of the session, measuring heart rate (HR), noninvasive cuffless systolic and diastolic blood pressure (SBP and DBP), stroke volume (SV), cardiac output (CO), and systemic vascular resistance (SVR). Data were analyzed retrospectively and included comparing BP measured by the wearable devices (recorded continuously every 5 s) and the cuff-based devices. A total of 98 dialysis sessions were included in the final analysis, and IDH was identified in 22 sessions (22.5%). Both SBP and DBP were highly correlated (r > 0.62, p < 0.001 for all) between the wearable device and the cuff-based measurements. Based on the continuous monitoring, patients with IDH had earlier and more profound reductions in SBP and DBP during the HD treatment. In addition, nearly all of the advanced vitals differed between groups. Further studies should be conducted in order to fully understand the potential of noninvasive advanced continuous monitoring in the prediction and prevention of IDH events.

18.
Front Physiol ; 14: 1138647, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37064911

RESUMO

Background: Currently-used tools for early recognition of clinical deterioration have high sensitivity, but with low specificity and are based on infrequent measurements. We aimed to develop a pre-symptomatic and real-time detection and warning tool for potential patients' deterioration based on multi-parameter real-time warning score (MPRT-WS). Methods: A total of more than 2 million measurements were collected, pooled, and analyzed from 521 participants, of which 361 were patients in general wards defined at high-risk for deterioration and 160 were healthy participants allocation as controls. The risk score stratification was based on cutoffs of multiple physiological parameters predefined by a panel of specialists, and included heart rate, blood oxygen saturation (SpO2), respiratory rate, cuffless systolic and diastolic blood pressure (SBP and DBP), body temperature, stroke volume (SV), cardiac output, and systemic vascular resistance (SVR), recorded every 5 min for a period of up to 72 h. The data was used to define the various risk levels of a real-time detection and warning tool, comparing it with the clinically-used National Early Warning Score (NEWS). Results: When comparing risk levels among patients using both tools, 92.6%, 6.1%, and 1.3% of the readings were defined as "Low", "Medium", and "High" risk with NEWS, and 92.9%, 6.4%, and 0.7%, respectively, with MPRT-WS (p = 0.863 between tools). Among the 39 patients that deteriorated, 30 patients received 'High' or 'Urgent' using the MPRT-WS (42.7 ± 49.1 h before they deteriorated), and only 6 received 'High' score using the NEWS. The main abnormal vitals for the MPRT-WS were SpO2, SBP, and SV for the "Urgent" risk level, DBP, SVR, and SBP for the "High" risk level, and DBP, SpO2, and SVR for the "Medium" risk level. Conclusion: As the new detection and warning tool is based on highly-frequent monitoring capabilities, it provides medical teams with timely alerts of pre-symptomatic and real-time deterioration.

19.
Digit Health ; 9: 20552076231179014, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37312950

RESUMO

Background: Continuous monitoring of ECG, respiratory rate, systolic and diastolic blood pressure, pulse rate, cardiac output, and cardiac index is important in patients with ST-elevation myocardial infarction (STEMI) admitted to the intensive cardiac care unit (ICCU). However, monitoring these parameters in this setting and in these patients using noninvasive, wireless devices has not been conducted so far. We aimed to assess the use of a novel noninvasive continuous monitoring device in STEMI patients admitted to the ICCU. Methods: Participants included STEMI patients that were admitted to the ICCU after primary percutaneous coronary intervention (PPCI). Patients were continuously monitored using a novel wearable chest patch monitor. Results: Fifteen patients with STEMI who underwent PPCI were included in this study. The median age was 52.8 years, the majority were males, and the median body mass index (BMI) was 25.7. Monitoring lasted for 66 ± 16 hours, and included the automatic collection and recording of all vitals, freeing the nursing staff to focus on other tasks. The user experience of nurses as reflected in filled questionnaires showed high satisfaction rates in all aspects. Conclusion: A novel noninvasive, wireless device showed high feasibility in continuously monitoring multiple crucial parameters in STEMI patients admitted to the ICCU after PPCI.

20.
Intern Emerg Med ; 18(2): 559-566, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36746888

RESUMO

Having a beard is an independent predictor of difficult ventilation by face mask. This study evaluates the efficacy of a novel intra-oral Bag-Valve-Guedel Adaptor (BVGA) in anaesthetized bearded patients. Patients with ASA score 1-2, scheduled for elective surgery, were recruited for this prospective, crossover trial. Beard length was categorized as < 0.5 cm, 0.5-1 cm, 1-5 cm, or > 5 cm. Patients were ventilated by attending anesthesiologists using the BVGA and a facemask (both with a Guedel oral airway). End-tidal CO2 (EtCO2) and expiratory tidal volume (TV) were recorded as was the number of hands required for the procedure. The primary outcome was the difference between BVGA and Facemask. Sixty-one patients were enrolled. Of these, 38 had beards, and 23 were without beards or with beards < 0.5 cm length. In bearded patients, ventilation with the BVGA was superior to the face mask by EtCO2 and non-inferior by TV (BVGA-vs-Mask, mean [95% CI]: EtCO2 [mmHg], 33.0 [31.6, 34.3]-vs-27.2 [25.5, 28.8], p < 0.001; TV [ml∙kg-1 IBW], 8.1 [7.4, 8.9]-vs-6.9 [6.0, 7.7], p = 0.11). The BVGA was found to be superior to the face mask by EtCO2 across all beard lengths (p ≤ 0.001), but by TV only for the longest beard group (p = 0.009). After securing the BVGA, ventilation was possible without hands in 74% of the cases - clearly impossible with the facemask (p ≤ 0.001). The BVGA is more effective and more convenient than the facemask in anaesthetized bearded patients. A follow-up study is underway to test whether replacing the face mask with the BVGA will improve effectiveness and ease of pre-intubation field ventilation by less-experienced, first responders.


Assuntos
Manuseio das Vias Aéreas , Máscaras Laríngeas , Ventilação , Humanos , Estudos Cross-Over , Seguimentos , Estudos Prospectivos , Respiração Artificial , Volume de Ventilação Pulmonar
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