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1.
J Pediatr Surg ; : 161643, 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39261188

RESUMO

INTRODUCTION: Non-operative management of uncomplicated appendicitis in children is a safe alternative to laparoscopic appendectomy. The purpose of this study is to determine the feasibility of nonoperative outpatient management of uncomplicated appendicitis in pediatric patients. METHODS: A standardized pathway for non-operative outpatient management of uncomplicated appendicitis in children (NOMA-C) was implemented in a university pediatric surgery practice starting October 2021. Those who met criteria would be considered for discharge from the emergency department (ED) with oral antibiotics and close followup over the following year. A quality improvement project started concurrently to monitor patients for recurrent symptoms of appendicitis. RESULTS: A total of 121 patients were diagnosed with acute appendicitis during the study period (October 2021 to April 2023). Forty-five children (38%) met criteria for the NOMA-C protocol, and 11 patients/families chose appendectomy. Of the 34 patients who pursued nonoperative management, 14 patients were admitted to the hospital and 20 patients were discharged from the ED. Total time in the ED/hospital was significantly shorter for patients discharged from the ED (7 hours versus 23 hours; p<0.001). At one year follow up only 4 (12%) had undergone appendectomy. There were no adverse events for patients who underwent nonoperative management. CONCLUSION: A protocol offering non-operative management of appendicitis with an option for outpatient management was feasible and safe. Outpatient management was associated with shorter ED/hospital stays than those admitted. Future studies should evaluate whether this protocol can be adopted by EDs without pediatric surgery services to avoid the need for transfer.

3.
ChemMedChem ; : e202400491, 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39230966

RESUMO

Carbohydrate antigen 19-9 (CA 19-9) also known as sialyl Lewis A is a tetrasaccharide overexpressed on a wide range of cancerous cells, which has been detected at elevated levels in sera of patients with various types of malignancies, most prominently pancreatic ductal adenocarcinoma. After its identification in 1979, multiple studies have highlighted the significant roles of CA 19-9 in cancer progression, including facilitating extravasation and eventually metastases, proliferation of cancer cells, and suppression of the immune system. Therefore, CA 19-9 has been considered an attractive target for cancer diagnosis, prognosis, and therapy. This review discusses the synthesis of CA 19-9 antigen, elicitation of antibodies through vaccination, development of anti-CA 19-9 monoclonal antibodies, and their applications as imaging tracers and therapeutics for a variety of CA 19-9-positive cancer.

5.
J Pediatr Surg ; 2024 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-39117536

RESUMO

BACKGROUND: The Nuss procedure for pectus excavatum is associated with prolonged hospitalizations due to pain. We evaluated implementation of intercostal nerve cryoablation and enhanced recovery after surgery (ERAS) protocols on outcomes of Nuss procedures performed over six years at a single institution. METHODS: This retrospective cohort study included patients who underwent Nuss procedure from 10/2017 to 09/2023. Patients received epidurals prior to 06/2019, cryoablation from 06/2019 to 07/2021, and ERAS with cryoablation and intraoperative methadone administration after 07/2021. We used multivariable linear regression to evaluate length of stay (LOS), inpatient morphine milligram equivalents (MMEs), and discharge opioids. We assessed the balancing measures of operative time, postoperative pain scores, and complications. RESULTS: We identified 62 patients; 15 who received epidurals, 18 cryoablation, and 29 cryoablation with ERAS. Cryoablation was associated with a 62.3% (p < 0.001) decrease in length of stay, an 86.6% (p < 0.001) decrease in inpatient MMEs, and a 72.9% (p < 0.001) decrease in discharge opioids. Cryoablation was additionally associated with 24.5% (p = 0.02) longer operative times and 46.4% (p = 0.04) higher postoperative day one pain scores. Subsequent implementation of an ERAS protocol was associated with a further 82.8% (p = 0.04) decrease in discharge opioids and a 25.0% (p = 0.04) decrease in postoperative day one pain scores. CONCLUSIONS: Over six years of quality improvement efforts, we found the implementation of cryoablation and ERAS protocols to be associated with a significant decrease in length of stay and opioid exposures. Protocolized pain management and cryoablation may work synergistically to improve outcomes without compromising patient experience. LEVEL OF EVIDENCE: Level III - Retrospective comparative study.

6.
Conscious Cogn ; 124: 103745, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39178588

RESUMO

Cognitive scientists differentiate the "minimal self" - subjective experiences of agency and ownership in our sensorimotor interactions with the world - from declarative beliefs about the self that are sustained over time. However, it remains an open question how individual sensory experiences of agency are integrated into the belief ofbeing an agent.We administered a sensorimotor task to measure subjects' (n = 195) propensity to classify stimuli as self-caused and metacognitive monitoring of such judgements, and we compared these behavioral metrics to declarative beliefs about their agency. Subjects who were less sensitive to control cues also reported more negative agency beliefs, though positive beliefs were not clearly correlated with any sensorimotor measure. Importantly, this relationship between first-order sensitivity and declarative beliefs essentially disappears when controlling for metacognitive sensitivity. Results suggest agency beliefs are not related directly to the propensity to make positive agency judgements but are connected through introspective access.


Assuntos
Metacognição , Humanos , Metacognição/fisiologia , Masculino , Adulto , Feminino , Adulto Jovem , Desempenho Psicomotor/fisiologia , Julgamento/fisiologia , Adolescente
8.
Cancer Discov ; 2024 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-38975886

RESUMO

Cellular plasticity is a hallmark of pancreatic ductal adenocarcinoma (PDAC) starting from the conversion of normal cells into precancerous lesions, to the progression of carcinoma subtypes associated with aggressiveness and therapeutic response. We discovered that normal acinar cell differentiation, maintained by the transcription factor Pdx1, suppresses a broad gastric cell identity that is maintained in metaplasia, neoplasia, and the classical subtype of PDAC in mouse and human. We have identified the receptor tyrosine kinase Ror2 as marker of a gastric metaplasia-like identity in pancreas neoplasms. Ablation of Ror2 in a mouse model of pancreatic tumorigenesis promoted a switch to a gastric pit cell identity that largely persisted through progression to the classical subtype of PDAC. In both human and mouse pancreatic cancer, ROR2 activity continued to antagonize the gastric pit cell identity, strongly promoting an epithelial to mesenchymal transition, conferring resistance to KRAS inhibition, and vulnerability to AKT inhibition.

9.
Can J Psychiatry ; : 7067437241261928, 2024 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-39051555

RESUMO

BACKGROUND: Schizophrenia spectrum disorders (SSDs) are a group of psychiatric disorders characterized by positive and negative symptoms as well as cognitive impairment that can significantly affect daily functioning. METHOD: We reviewed evidence-based strategies for improving cognitive function in patients with SSDs, focusing on the Canadian landscape. RESULTS: Although antipsychotic medications can address the positive symptoms of SSDs, cognitive symptoms often persist, causing functional impairment and reduced quality of life. Moreover, cognitive function in patients with SSDs is infrequently assessed in clinical practice, and evidence-based recommendations for addressing cognitive impairment in people living with schizophrenia are limited. While cognitive remediation (CR) can improve several domains of cognitive function, most individuals with SSDs are currently not offered such an intervention. While the development of implementation strategies for CR is underway, available and emerging pharmacological treatments may help overcome the limited capacity for psychosocial approaches. Furthermore, combining pharmacological with non-pharmacological interventions may improve outcomes compared to pharmacotherapy or CR alone. CONCLUSION: This review highlights the challenges and discusses the potential solutions related to the assessment and management of cognitive impairment to help mental health-care practitioners better manage cognitive impairment and improve daily functioning in individuals with SSDs.


Improving Thinking Skills in People With Schizophrenia: A Focus on CanadaPlain Language SummarySchizophrenia spectrum disorders (SSDs) are mental health conditions that can cause a mix of symptoms making everyday life difficult for people. For example, some people might experience positive symptoms like seeing and hearing things that are not there, having false believes, or feeling suspicious. Others might experience negative symptoms like isolating from social interactions, having trouble showing emotion, or finding it hard to connect with others. Finally, they might also have trouble with thinking skills, like paying attention, planning and organizing, remembering things, or understanding social cues. While some medicines can help with some of the symptoms, they often do not help with improving thinking skills. In addition, these thinking problems are not checked often enough in patients with SSDs. In fact, there are not many proven ways to help with these issues. One method that can help with thinking skills is called cognitive remediation (CR), but it is not offered to most people with SSDs. There are ongoing efforts to make CR more available. It is also possible that CR may be combined with new medicines to make it work better than using just one treatment. This article looks at ways to improve thinking skills in people with SSDs, with a focus on what is happening in Canada. We present the challenges and possible solutions for checking and managing thinking problems, to help health-care workers better care for people with SSDs.

10.
Elife ; 132024 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-38857064

RESUMO

Enterococcus faecium is a microbiota species in humans that can modulate host immunity (Griffin and Hang, 2022), but has also acquired antibiotic resistance and is a major cause of hospital-associated infections (Van Tyne and Gilmore, 2014). Notably, diverse strains of E. faecium produce SagA, a highly conserved peptidoglycan hydrolase that is sufficient to promote intestinal immunity (Rangan et al., 2016; Pedicord et al., 2016; Kim et al., 2019) and immune checkpoint inhibitor antitumor activity (Griffin et al., 2021). However, the functions of SagA in E. faecium were unknown. Here, we report that deletion of sagA impaired E. faecium growth and resulted in bulged and clustered enterococci due to defective peptidoglycan cleavage and cell separation. Moreover, ΔsagA showed increased antibiotic sensitivity, yielded lower levels of active muropeptides, displayed reduced activation of the peptidoglycan pattern-recognition receptor NOD2, and failed to promote cancer immunotherapy. Importantly, the plasmid-based expression of SagA, but not its catalytically inactive mutant, restored ΔsagA growth, production of active muropeptides, and NOD2 activation. SagA is, therefore, essential for E. faecium growth, stress resistance, and activation of host immunity.


Assuntos
Proteínas de Bactérias , Enterococcus faecium , Inibidores de Checkpoint Imunológico , N-Acetil-Muramil-L-Alanina Amidase , Animais , Humanos , Camundongos , Proteínas de Bactérias/metabolismo , Proteínas de Bactérias/genética , Enterococcus faecium/genética , Inibidores de Checkpoint Imunológico/farmacologia , N-Acetil-Muramil-L-Alanina Amidase/metabolismo , N-Acetil-Muramil-L-Alanina Amidase/genética , Peptidoglicano/metabolismo
11.
Asian J Psychiatr ; 98: 104118, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38908214

RESUMO

BACKGROUND: Cross-cultural psychosis research has mostly focused on outcomes, rather than patient and family experiences. Therefore, our aim was to examine differences in patients' and families' experiences of their treating teams in early intervention services for psychosis in Chennai, India [low- and middle-income country] and Montreal, Canada [high-income country]. METHODS: Patients (165 in Chennai, 128 in Montreal) and their families (135 in Chennai, 110 in Montreal) completed Show me you care, a patient- and family-reported experience measure, after Months 3, 12, and 24 in treatment. The measure assesses the extent to which patients and families view treating teams as being supportive. A linear mixed model with longitudinal data from patient and family dyads was used to test the effect of site (Chennai, Montreal), stakeholder (patient, family), and time on Show me you care scores. This was followed by separate linear mixed effect models for patients and families with age and gender, as well as symptom severity and functioning as time-varying covariates. RESULTS: As hypothesized, Chennai patients and families reported more supportive behaviours from their treating teams (ß=4.04; ß= 9, respectively) than did Montreal patients (Intercept =49.6) and families (Intercept=42.45). Higher symptom severity over follow-up was associated with patients reporting lower supportive behaviours from treating teams. Higher levels of positive symptoms (but lower levels of negative symptoms) over follow-up were associated with families reporting lower supportive behaviours from treating teams. There was no effect of time, age, gender and functioning. CONCLUSIONS: The levels to which treating teams are perceived as supportive may reflect culturally shaped attitudes (e.g., warmer attitudes towards healthcare providers in India vis-à-vis Canada) and actual differences in how supportive treating teams are, which too may be culturally shaped. Being expected to be more involved in treatment, Chennai families may receive more attention and support, which may further reinforce their involvement. Across contexts, those who improve over follow-up may see their treating teams more positively.


Assuntos
Família , Transtornos Psicóticos , Humanos , Feminino , Masculino , Índia , Adulto , Transtornos Psicóticos/terapia , Adulto Jovem , Família/psicologia , Quebeque , Canadá , Intervenção Médica Precoce , Serviços de Saúde Mental/estatística & dados numéricos , Adolescente , Comparação Transcultural , Pessoa de Meia-Idade
12.
Artigo em Inglês | MEDLINE | ID: mdl-38922816

RESUMO

BACKGROUND: Thyroid axis dysregulation during controlled ovarian hyperstimulation (COH) is more pronounced in hypothyroid-treated women. Whether or not this leads to compromised thyroid hormone levels within the ovarian follicular fluid is not known. AIMS: To determine whether ovarian follicular thyroid hormone levels are compromised in adequately replaced hypothyroid women undergoing controlled ovarian hyperstimulation (COH), and/or influence cycle/pregnancy outcomes. MATERIALS AND METHODS: Prospective cohort study involving 46 euthyroid (anti-thyroid peroxidase antibody negative) and 16 levothyroxine-replaced women with baseline thyroid-stimulating hormone (TSH) <2.5 mIU/L attending their first COH cycle. Follicular fluid TSH, free triiodothyronine (T3) and free thyroxine (T4) were recorded at oocyte pick-up. Serum levels were measured at: (i) baseline; (ii) human chorionic gonadotropin trigger day; and (iii) cycle conclusion. The number of mature oocytes retrieved, fertilisation, early pregnancy loss and live birth rates were compared. RESULTS: Median serum TSH levels were similar at baseline (1.76 vs 1.24 mIU/L, P = 0.053), but free T3 levels were lower (4.5 vs 4.8 pmol/L, P = 0.029) in levothyroxine-replaced compared to euthyroid women, with serum TSH levels increasing across ovarian stimulation (P = 0.006) into pregnancy testing (P = 0.030). Follicular fluid free T3 levels were lower in levothyroxine-replaced women (median 4.3 vs 4.6 pmol/L, P = 0.032). Fertilisation rates were lower (52% vs 71%, P = 0.043) in women requiring levothyroxine replacement, but numbers of mature oocytes retrieved, early pregnancy loss and live births did not differ. CONCLUSION: Adequately replaced hypothyroid women achieve lower ovarian follicular fluid free T3 levels and poorer fertilisation rates compared to euthyroid women undergoing COH. Optimising T3 levels may be pivotal in improving COH outcomes in hypothyroid women.

13.
Eur Heart J Cardiovasc Imaging ; 25(9): 1276-1286, 2024 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-38693866

RESUMO

AIMS: Evaluation of left and right ventricular (RV) longitudinal systolic function may enhance risk stratification following aortic valve replacement (AVR). The study objective was to evaluate the changes in left and RV longitudinal systolic function and RV-pulmonary artery (RV-PA) coupling from baseline to 30 days and 1 year after AVR. METHODS AND RESULTS: Left ventricular (LV) longitudinal strain (LS), tricuspid annulus plane systolic excursion (TAPSE), and RV-PA coupling were evaluated in patients from the PARTNER 2A surgical AVR (SAVR) arm (n = 985) and from the PARTNER 2 SAPIEN 3 registry (n = 719). TAPSE and RV-PA coupling decreased significantly following SAVR, but remained stable following TAVR. Lower LV LS, TAPSE, or RV-PA coupling at baseline was associated with increased risk of the composite of death, hospitalization, and stroke at 5 years [adjusted hazard ratios (HRs) for LV LS < 15%: 1.24, 95% confidence interval (CI) 1.05-1.45, P = 0.001; TAPSE < 14 mm: 1.44, 95% CI 1.21-1.73, P < 0.001; RV-PA coupling < 0.55 mm/mmHg: 1.32, 95% CI 1.07-1.63, P = 0.011]. Reduced TAPSE at baseline was the most powerful predictor of the composite endpoint at 5 years. Patients with LV ejection fraction <50% at baseline had increased risk of the primary endpoint with SAVR (HR: 1.34, 95% CI 1.08-1.68, P = 0.009) but not with TAVR (HR: 1.12, 95% CI 0.88-1.42). Lower RV-PA coupling at 30 days showed the strongest association with cardiac mortality. CONCLUSION: SAVR but not TAVR was associated with a marked deterioration in RV longitudinal systolic function and RV-PA coupling. Lower TAPSE and RV-PA coupling at 30 days were associated with inferior clinical outcomes at 5 years. In patients with LVEF < 50%, TAVR was associated with superior 5-year outcomes.


Assuntos
Estenose da Valva Aórtica , Implante de Prótese de Valva Cardíaca , Sistema de Registros , Humanos , Masculino , Feminino , Idoso , Estenose da Valva Aórtica/cirurgia , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/fisiopatologia , Implante de Prótese de Valva Cardíaca/métodos , Implante de Prótese de Valva Cardíaca/efeitos adversos , Substituição da Valva Aórtica Transcateter/efeitos adversos , Substituição da Valva Aórtica Transcateter/métodos , Medição de Risco , Sístole , Idoso de 80 Anos ou mais , Resultado do Tratamento , Volume Sistólico/fisiologia , Ecocardiografia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia
14.
Neurology ; 102(10): e209388, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38701403

RESUMO

BACKGROUND AND OBJECTIVES: Whether patent foramen ovale (PFO) closure benefits older patients with PFO and cryptogenic stroke is unknown because randomized controlled trials (RCTs) have predominantly enrolled patients younger than 60 years of age. Our objective was to estimate anticipated effects of PFO closure in older patients to predict the numbers needed to plan an RCT. METHODS: Effectiveness estimates are derived from major observational studies (Risk of Paradoxical Embolism [RoPE] Study and Oxford Vascular Study, together referred to as the "RoPE-Ox" database) and all 6 major RCTs (Systematic, Collaborative, PFO Closure Evaluation [SCOPE] Consortium). To estimate stroke recurrence risk, observed outcomes were calculated for patients older than 60 years in the age-inclusive observational databases (n = 549). To estimate the reduction in the rate of recurrent stroke associated with PFO closure vs medical therapy based on the RoPE score and the presence of high-risk PFO features, a Cox proportional hazards regression model was developed on the RCT data in the SCOPE database (n = 3,740). These estimates were used to calculate sample sizes required for a future RCT. RESULTS: Five-year risk of stroke recurrence using Kaplan-Meier estimates was 13.7 (95% CI 10.5-17.9) overall, 14.9% (95% CI 10.2-21.6) in those with high-risk PFO features. Predicted relative reduction in the event rate with PFO closure was 12.9% overall, 48.8% in those with a high-risk PFO feature. Using these estimates, enrolling all older patients with cryptogenic stroke and PFO would require much larger samples than those used for prior PFO closure trials, but selectively enrolling patients with high-risk PFO features would require totals of 630 patients for 90% power and 471 patients for 80% power, with an average of 5 years of follow-up. DISCUSSION: Based on our projections, anticipated effect sizes in older patients with high-risk features make a trial in these subjects feasible. With lengthening life expectancy in almost all regions of the world, the utility of PFO closure in older adults is increasingly important to explore.


Assuntos
Estudos de Viabilidade , Forame Oval Patente , Seleção de Pacientes , Acidente Vascular Cerebral , Humanos , Forame Oval Patente/complicações , Forame Oval Patente/cirurgia , Idoso , Acidente Vascular Cerebral/etiologia , Masculino , Feminino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Recidiva , Resultado do Tratamento , Fatores Etários , Idoso de 80 Anos ou mais
15.
Circ Cardiovasc Interv ; 17(5): e014054, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38696284

RESUMO

BACKGROUND: XC001 is a novel adenoviral-5 vector designed to express multiple isoforms of VEGF (vascular endothelial growth factor) and more safely and potently induce angiogenesis. The EXACT trial (Epicardial Delivery of XC001 Gene Therapy for Refractory Angina Coronary Treatment) assessed the safety and preliminary efficacy of XC001 in patients with no option refractory angina. METHODS: In this single-arm, multicenter, open-label trial, 32 patients with no option refractory angina received a single treatment of XC001 (1×1011 viral particles) via transepicardial delivery. RESULTS: There were no severe adverse events attributed to the study drug. Twenty expected severe adverse events in 13 patients were related to the surgical procedure. Total exercise duration increased from a mean±SD of 359.9±105.55 seconds at baseline to 448.2±168.45 (3 months), 449.2±175.9 (6 months), and 477.6±174.7 (12 months; +88.3 [95% CI, 37.1-139.5], +84.5 [95% CI, 34.1-134.9], and +115.5 [95% CI, 59.1-171.9]). Total myocardial perfusion deficit on positron emission tomography imaging decreased by 10.2% (95% CI, -3.1% to 23.5%), 14.3% (95% CI, 2.8%-25.7%), and 10.2% (95% CI, -0.8% to -21.2%). Angina frequency decreased from a mean±SD 12.2±12.5 episodes to 5.2±7.2 (3 months), 5.1±7.8 (6 months), and 2.7±4.8 (12 months), with an average decrease of 7.7 (95% CI, 4.1-11.3), 6.6 (95% CI, 3.5-9.7), and 8.8 (4.6-13.0) episodes at 3, 6, and 12 months. Angina class improved in 81% of participants at 6 months. CONCLUSIONS: XC001 administered via transepicardial delivery is safe and generally well tolerated. Exploratory improvements in total exercise duration, ischemic burden, and subjective measures support a biologic effect sustained to 12 months, warranting further investigation. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04125732.


Assuntos
Angina Pectoris , Terapia Genética , Vetores Genéticos , Neovascularização Fisiológica , Fator A de Crescimento do Endotélio Vascular , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Angina Pectoris/terapia , Angina Pectoris/fisiopatologia , Terapia Genética/efeitos adversos , Idoso , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/genética , Fatores de Tempo , Tolerância ao Exercício , Adenoviridae/genética , Recuperação de Função Fisiológica
16.
Am J Orthopsychiatry ; 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38573687

RESUMO

Parents of color's critical consciousness development (understanding of and actions to redress societal inequalities) is an important yet understudied area, especially relative to the burgeoning literature on youth's critical consciousness development. As with youth of color, ethnic-racial identity, or the meaning and importance placed on one's ethnic-racial group membership, likely plays a notable yet complex role in parents' critical consciousness. Specifically, parents' participation in activities that engage them in the culture of their racial-ethnic group (exploration), the importance they place on race-ethnicity (centrality), and their perceptions of how society views their group (public regard) may each be differentially associated with understanding of inequalities (critical reflection), motivation toward ending inequalities (critical motivation), and the behaviors parents engage in to address inequalities (critical action). Further, it is possible that associations may vary across racial-ethnic groups given different sociocultural histories, experiences (including immigrant experiences), and positionality within the United States. In the present study, we employ multigroup structural equation modeling among a sample of 203 Black, 193 Asian American, and 188 Latinx parents (total N = 584, Mage = 44.46, SD = 2.49, 59.6% mothers) of an adolescent child between the ages of 13 and 17 to examine associations between ethnic-racial identity and critical consciousness across groups. Results indicate highly complex, group-specific relations between identity and critical consciousness: public regard was most consistently predictive of critical consciousness dimensions among Black parents. Exploration and centrality were most predictive among Asian American and Latinx parents, respectively. Implications for relations between ethnic-racial identity and critical consciousness in light of different group experiences are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

17.
N Engl J Med ; 390(21): 1959-1971, 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38587261

RESUMO

BACKGROUND: Patients with severe aortic stenosis and a small aortic annulus are at risk for impaired valvular hemodynamic performance and associated adverse cardiovascular clinical outcomes after transcatheter aortic-valve replacement (TAVR). METHODS: We randomly assigned patients with symptomatic severe aortic stenosis and an aortic-valve annulus area of 430 mm2 or less in a 1:1 ratio to undergo TAVR with either a self-expanding supraannular valve or a balloon-expandable valve. The coprimary end points, each assessed through 12 months, were a composite of death, disabling stroke, or rehospitalization for heart failure (tested for noninferiority) and a composite end point measuring bioprosthetic-valve dysfunction (tested for superiority). RESULTS: A total of 716 patients were treated at 83 sites in 13 countries (mean age, 80 years; 87% women; mean Society of Thoracic Surgeons Predicted Risk of Mortality, 3.3%). The Kaplan-Meier estimate of the percentage of patients who died, had a disabling stroke, or were rehospitalized for heart failure through 12 months was 9.4% with the self-expanding valve and 10.6% with the balloon-expandable valve (difference, -1.2 percentage points; 90% confidence interval [CI], -4.9 to 2.5; P<0.001 for noninferiority). The Kaplan-Meier estimate of the percentage of patients with bioprosthetic-valve dysfunction through 12 months was 9.4% with the self-expanding valve and 41.6% with the balloon-expandable valve (difference, -32.2 percentage points; 95% CI, -38.7 to -25.6; P<0.001 for superiority). The aortic-valve mean gradient at 12 months was 7.7 mm Hg with the self-expanding valve and 15.7 mm Hg with the balloon-expandable valve, and the corresponding values for additional secondary end points through 12 months were as follows: mean effective orifice area, 1.99 cm2 and 1.50 cm2; percentage of patients with hemodynamic structural valve dysfunction, 3.5% and 32.8%; and percentage of women with bioprosthetic-valve dysfunction, 10.2% and 43.3% (all P<0.001). Moderate or severe prosthesis-patient mismatch at 30 days was found in 11.2% of the patients in the self-expanding valve group and 35.3% of those in the balloon-expandable valve group (P<0.001). Major safety end points appeared to be similar in the two groups. CONCLUSIONS: Among patients with severe aortic stenosis and a small aortic annulus who underwent TAVR, a self-expanding supraannular valve was noninferior to a balloon-expandable valve with respect to clinical outcomes and was superior with respect to bioprosthetic-valve dysfunction through 12 months. (Funded by Medtronic; SMART ClinicalTrials.gov number, NCT04722250.).


Assuntos
Estenose da Valva Aórtica , Valva Aórtica , Bioprótese , Próteses Valvulares Cardíacas , Substituição da Valva Aórtica Transcateter , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Valva Aórtica/cirurgia , Estenose da Valva Aórtica/cirurgia , Estenose da Valva Aórtica/complicações , Bioprótese/efeitos adversos , Insuficiência Cardíaca , Estimativa de Kaplan-Meier , Complicações Pós-Operatórias/etiologia , Desenho de Prótese , Falha de Prótese , Acidente Vascular Cerebral/etiologia , Substituição da Valva Aórtica Transcateter/efeitos adversos
18.
J Fam Psychol ; 38(4): 571-581, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38573697

RESUMO

Historically, research on racial socialization (RS) has centered on frequency, beliefs, and content of parent-child communications, with varied applications and implications across racial and ethnic subgroups. The Racial Socialization Competency Scale (RaSCS; Anderson et al., 2020) was developed to assess three dimensions of a novel construct, RS competency (confidence, skills, stress), among Black caregivers. In this article, we investigated the psychometric properties of the RaSCS across diverse ethnic-racial groups. Participants were 778 caregivers (Mage = 44.4 years) of youth between the ages of 10 and 18 recruited from across the United States. The sample was intentionally racially and ethnically diverse, with 26.1% identifying as Black, 24.2% identifying as Latinx, 24.9% identifying as Asian American, and 24.8% identifying as White. Confirmatory factor analyses replicated the previously identified structure of the RaSCS subscales, and scores were reliable. Multigroup measurement invariance analyses supported full scalar invariance across the four racial/ethnic subgroups for the Confidence, Skills, and General RS Stress subscales and partial scalar invariance for the Call to Action RS Stress subscale. These findings suggest that the RaSCS is an appropriate tool for assessing RS competency across racial and ethnic groups and that RS competency as a universal construct is relevant across groups. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Socialização , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Asiático/psicologia , Negro ou Afro-Americano/psicologia , Negro ou Afro-Americano/etnologia , Cuidadores/psicologia , Etnicidade/psicologia , Relações Pais-Filho/etnologia , Psicometria/instrumentação , Psicometria/normas , Psicometria/métodos , Estados Unidos/etnologia , Hispânico ou Latino , Brancos
19.
Cardiovasc Revasc Med ; 66: 21-26, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38553277

RESUMO

BACKGROUND: Studies comparing transcatheter and surgical aortic valve replacement (TAVR and SAVR) for patients with trileaflet aortic stenosis (AS) have found similar or larger effective orifice area (EOA) for TAVR prostheses. To our knowledge, no studies have compared EOA in patients undergoing TAVR versus SAVR for bicuspid AS. METHODS: We retrospectively compared prosthetic valvular sizing and predicted EOA for patients with bicuspid AS undergoing TAVR or SAVR at our institution between January 1, 2016, and December 31, 2021. We excluded patients undergoing procedures for indications other than AS and those without a pre-procedural gated Chest CT. Comparisons included demographics, comorbidities, annular size, prosthetic valve size, predicted EOA and prosthesis-patient mismatch (PPM) for TAVR (N = 78) and SAVR (N = 74) cohorts. RESULTS: TAVR patients had smaller pre-procedural annular area (501.7 mm2 vs. 571.8 mm2, p < 0.05) and annular perimeter (80.6 mm vs. 86.5 mm, p < 0.05), but larger mean implanted prosthetic valve size (26.4 mm vs 24.2 mm, p < 0.001) compared to SAVR patients. No differences were observed in predicted EOA, predicted EOA indexed to patient body surface area (EOAi), or predicted PPM grade between TAVR and SAVR groups, including in cohorts sorted by pre-procedural annular size. CONCLUSIONS: For bicuspid AS patients undergoing aortic valve replacement, TAVR achieves similar predicted EOA to SAVR. These data support the use of TAVR in selected patients with bicuspid AS and can inform heart team discussions.


Assuntos
Estenose da Valva Aórtica , Valva Aórtica , Doença da Válvula Aórtica Bicúspide , Implante de Prótese de Valva Cardíaca , Próteses Valvulares Cardíacas , Desenho de Prótese , Substituição da Valva Aórtica Transcateter , Humanos , Valva Aórtica/cirurgia , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/fisiopatologia , Valva Aórtica/anormalidades , Estenose da Valva Aórtica/cirurgia , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/fisiopatologia , Substituição da Valva Aórtica Transcateter/instrumentação , Substituição da Valva Aórtica Transcateter/efeitos adversos , Estudos Retrospectivos , Feminino , Doença da Válvula Aórtica Bicúspide/cirurgia , Doença da Válvula Aórtica Bicúspide/diagnóstico por imagem , Doença da Válvula Aórtica Bicúspide/fisiopatologia , Masculino , Resultado do Tratamento , Idoso , Implante de Prótese de Valva Cardíaca/instrumentação , Implante de Prótese de Valva Cardíaca/efeitos adversos , Idoso de 80 Anos ou mais , Fatores de Risco , Doenças das Valvas Cardíacas/cirurgia , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/fisiopatologia , Hemodinâmica , Recuperação de Função Fisiológica , Pessoa de Meia-Idade , Fatores de Tempo
20.
Cultur Divers Ethnic Minor Psychol ; 30(3): 587-598, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38546588

RESUMO

OBJECTIVE: The consequences of racism and racial stress on the academic and social well-being of adolescents are profound and well-documented. However, our understanding of how adolescents navigate racial stress and develop the agency to address discriminatory encounters, particularly in settings where educators struggle to intervene with microaggressions, remains limited. Research into the development of racial coping self-efficacy (RCSE) and coping skills has shown promise in enhancing the overall well-being of youth. In this study, we employ racial encounter coping appraisal and socialization theory (RECAST) to investigate the relationships among key school-based factors that influence how students cope with racial challenges. Specifically, we examine the role of RCSE, agency, stress, vigilance, and sense of belonging in the school environment for students. METHOD: Participants included 645 high school students from a diverse public school district who completed an online survey during a single class period. Analyses examined the mediating and moderating effects of RCSE, racial coping stress (RCS), and racial vigilance on agency. RESULTS: RCSE reduced the negative influence of RCS on student racial agency in resolving racial conflicts with teachers and peers, particularly for Latinx students. CONCLUSIONS: Implications for advancing RECAST-based interventions to help adolescents develop the agency to problem solve traumatic racial events in schools are discussed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Adaptação Psicológica , Racismo , Instituições Acadêmicas , Autoeficácia , Estresse Psicológico , Estudantes , Humanos , Adolescente , Feminino , Masculino , Racismo/psicologia , Estresse Psicológico/etnologia , Estresse Psicológico/psicologia , Estudantes/psicologia , Inquéritos e Questionários
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