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1.
J Child Orthop ; 17(5): 489-496, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37799309

RESUMO

Purpose: Patients of elective orthopedic surgeries often reduce activity levels during postoperative recovery. It is unclear whether these extended periods of modified activities lead to weight changes. The purpose of this study was to evaluate changes in body mass index percentile in pediatric patients over 2.5 years following primary musculoskeletal surgeries. Methods: Institutional records for utilized current procedural terminology codes were used to identify patients aged 21 years or younger who underwent elective surgery at a single pediatric orthopedic institution between October 2016 and December 2018. Non-primary surgeries and patients without preoperative body mass index measurements were excluded. Demographic characteristics, height, weight, and body mass index within 30 months of surgery were collected. Body mass index relative to age was calculated. Analysis of body mass index changes at follow-up intervals of 3-7, 9-18, and 24-30 months after surgery was performed for the overall sample, within surgical categories, and within preoperative weight classifications. Results: A total of 1566 patients (53.1% female, average age 12.4 years) were included. Over one-third of patients were overweight or obese at presentation. The average change in body mass index percentile relative to baseline was increased at all follow-up intervals. Values reached significance at 9-18 months (p = .002) and 24-30 months (p = .001). While underweight and normal-weight patients had increased body mass index at all three timepoints, overweight or obese patients decreased. Conclusions: Patients undergoing elective orthopedic procedures may experience significant changes in body mass index percentile postoperatively. At extremes of weight, patients experience improvement toward the mean, but most patients may undergo body mass index increases beyond what would be expected during normal growth. Level of evidence: Retrospective level III.

2.
J Bone Joint Surg Am ; 104(11): e47, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35104253

RESUMO

ABSTRACT: Historic and present-day marginalization has resulted in a high burden of disease and worse health outcomes for American Indian and Alaska Native (AI/AN) communities in the United States. Musculoskeletal disease is the leading cause of disability for the general population in the U.S. today. However, few have examined musculoskeletal disease burden and access to orthopaedic surgical care in the AI/AN communities. A high prevalence of hip dysplasia, arthritis, back pain, and diabetes, and a high incidence of trauma and road traffic-related mortality, suggest a disproportionately high burden of musculoskeletal pathology among the AI/AN communities and a substantial need for orthopaedic surgical services. Unfortunately, AI/AN patients face many barriers to receiving specialty care, including long travel distances and limited transportation to health facilities, inadequate staff and resources at Indian Health Service (IHS)-funded facilities, insufficient funding for referral to specialists outside of the IHS network, and sociocultural barriers that complicate health-system navigation and erode trust between patients and providers. For those who manage to access orthopaedic surgery, AI/AN patients face worse outcomes and more complications than White patients. There is an urgent need for orthopaedic surgeons to participate in improving the availability of quality orthopaedic services for AI/AN patients through training and support of local providers, volunteerism, advocating for a greater investment in the IHS Purchased/Referred Care program, expanding telemedicine capabilities, and supporting community-based participatory research activities.


Assuntos
Indígenas Norte-Americanos , Doenças Musculoesqueléticas , Ortopedia , Telemedicina , Humanos , Estados Unidos
3.
J Bone Joint Surg Am ; 103(4): 326-334, 2021 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-33369982

RESUMO

BACKGROUND: The burden of musculoskeletal trauma is increasing worldwide, especially in low-income countries such as Malawi. Ankle fractures are common in Malawi and may receive suboptimal treatment due to inadequate surgical capacity and limited provider knowledge of evidence-based treatment guidelines. METHODS: This study was conducted in 3 phases. First, we assessed Malawian orthopaedic providers' understanding of anatomy, injury identification, and treatment methods. Second, we observed Malawian providers' treatment strategies for adults with ankle fractures presenting to a central hospital. These patients' radiographs underwent blinded, post hoc review by 3 U.S.-based orthopaedic surgeons and a Malawian orthopaedic surgeon, whose treatment recommendations were compared with actual treatments rendered by Malawian providers. Third, an educational course addressing knowledge deficits was implemented. We assessed post-course knowledge and introduced a standardized management protocol, specific to the Malawian context. RESULTS: In Phase 1, deficits in injury identification, ideal treatment practices, and treatment standardization were identified. In Phase 2, 17 (35%) of 49 patients met operative criteria but did not undergo a surgical procedure, mainly because of resource limitations and provider failure to recognize unstable injuries. In Phase 3, 51 (84%) of 61 participants improved their overall performance between the pre-course and post-course assessments. Participants answered a mean of 32.4 (66%) of 49 questions correctly pre-course and 37.7 (77%) of 49 questions correctly post-course, a significant improvement of 5.2 more questions (95% confidence interval [CI], 3.8 to 6.6 questions; p < 0.001) answered correctly. Providers were able to identify 1 more injury correctly of 8 injuries (mean, 1.1 questions [95% CI, 0.6 to 1.6 questions]; p < 0.001) and to identify 1 more ideal treatment of the 7 that were tested (mean, 1.0 question [95% CI, 0.5 to 1.4 questions]; p < 0.001). CONCLUSIONS: Adult ankle fractures in Malawi were predominantly treated nonoperatively despite often meeting evidence-based criteria for surgery. This was due to resource limitations, knowledge deficits, and lack of treatment standardization. We demonstrated a comprehensive approach to examining the challenges of providing adequate orthopaedic care in a resource-limited setting and the successful implementation of an educational intervention to improve care delivery. This approach can be adapted for other conditions to improve orthopaedic care in low-resource settings.


Assuntos
Fraturas do Tornozelo/terapia , Articulação do Tornozelo/cirurgia , Conhecimentos, Atitudes e Prática em Saúde , Adulto , Fraturas do Tornozelo/diagnóstico por imagem , Fraturas do Tornozelo/cirurgia , Articulação do Tornozelo/diagnóstico por imagem , Feminino , Humanos , Malaui , Masculino , Pessoa de Meia-Idade , Radiografia
4.
Perm J ; 22: 17-171, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29616913

RESUMO

Mindfulness meditation has vast physiologic benefits that can reduce physician burnout and improve physician well-being. Collective meditation and mindfulness practices with organized continuity among physician groups can synergistically elevate the practice of primary care by fostering creativity and innovation needed for sustainable solutions. A cohesive frontline physician voice rooted in higher purpose cultivated by meditation and mindfulness practices in a platform directly linked to quality improvement can lead to meaningful change in primary care for all.


Assuntos
Esgotamento Profissional/terapia , Meditação/métodos , Atenção Plena/métodos , Médicos de Atenção Primária/psicologia , Humanos
5.
Neuro Oncol ; 8(1): 67-78, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16443950

RESUMO

The purpose of this study was to define the maximum tolerated dose of erlotinib and characterize its pharmaco-kinetics and safety profile, alone and with temozolomide, with and without enzyme-inducing antiepileptic drugs (EIAEDs), in patients with malignant gliomas. Patients with stable or progressive malignant primary glioma received erlotinib alone or combined with temozolomide in this dose-escalation study. In each treatment group, patients were stratified by coadministration of EIAEDs. Erlotinib was started at 100 mg orally once daily as a 28-day treatment cycle, with dose escalation by 50 mg/day up to 500 mg/day. Temozolomide was administered at 150 mg/m2 for five consecutive days every 28 days, with dose escalation up to 200 mg/m2 at the second cycle. Eightythree patients were evaluated. Rash, fatigue, and diarrhea were the most common adverse events and were generally mild to moderate. The recommended phase 2 dose of erlotinib is 200 mg/day for patients with glioblastoma multiforme who are not receiving an EIAED, 450 mg/day for those receiving temozolomide plus erlotinib with an EIAED, and at least 500 mg/day for those receiving erlotinib alone with an EIAED. Of the 57 patients evaluable for response, eight had a partial response (PR). Six of the 57 patients had a progression-free survival of longer than six months, including four patients with a PR. Coadministration of EIAEDs reduced exposure to erlotinib as compared with administration of erlotinib alone (33%-71% reduction). There was a modest pharmacokinetic interaction between erlotinib and temozolomide. The favorable tolerability profile and evidence of antitumor activity indicate that further investigation of erlotinib is warranted.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias Encefálicas/tratamento farmacológico , Glioma/tratamento farmacológico , Adulto , Idoso , Anticonvulsivantes/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Dacarbazina/análogos & derivados , Relação Dose-Resposta a Droga , Interações Medicamentosas , Cloridrato de Erlotinib , Feminino , Humanos , Masculino , Dose Máxima Tolerável , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Quinazolinas/administração & dosagem , Quinazolinas/efeitos adversos , Quinazolinas/farmacocinética , Temozolomida , Resultado do Tratamento
6.
J Natl Cancer Inst ; 97(12): 880-7, 2005 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-15956649

RESUMO

BACKGROUND: The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor erlotinib (also known as Tarceva or OSI-774) has shown promising response rates in malignant gliomas. We investigated the association between expression of EGFR and downstream signaling components and the response of malignant gliomas to erlotinib in a phase I trial of erlotinib administered either alone or with the alkylating agent temozolomide. METHODS: Expression of EGFR and ligand-independent EGFRvIII mutant proteins and of phosphorylated protein kinase B (PKB)/Akt in specimens from glioma patients were assessed by immunohistochemistry. EGFR gene amplification was evaluated by fluorescence in situ hybridization. Mutations in PTEN and EGFR were assessed by polymerase chain reaction amplification and sequencing. Response was evaluated by sequential magnetic resonance imaging every 2 months. The Cochran-Mantel-Haenzel test was used to assess associations between biomarker status and response. All statistical tests were two-sided. RESULTS: Of 41 glioma patients, eight responded to treatment. Response to erlotinib was associated with EGFR expression (P = .07) and EGFR amplification (P = .08). These associations were stronger and statistically significant among the 29 patients initially diagnosed with glioblastoma multiforme (P = .03 and P = .02, respectively). Among six responders with sufficient tumor tissue, none had EGFRvIII mutations. None of the 22 tumors with high levels of phosphorylated PKB/Akt responded to erlotinib treatment, whereas eight of the 18 tumors with low levels of phosphorylated PKB/Akt responded to erlotinib treatment (P < .001). The level of phosphorylated PKB/Akt was also associated with time to progression (P < .001). CONCLUSIONS: Among glioma patients, those with glioblastoma multiforme tumors who have high levels of EGFR expression and low levels of phosphorylated PKB/Akt had better response to erlotinib treatment than those with low levels of EGFR expression and high levels of phosphorylated PKB/Akt.


Assuntos
Antineoplásicos/uso terapêutico , Dacarbazina/análogos & derivados , Receptores ErbB/efeitos dos fármacos , Glioma/tratamento farmacológico , Monoéster Fosfórico Hidrolases/efeitos dos fármacos , Proteínas Serina-Treonina Quinases/antagonistas & inibidores , Proteínas Proto-Oncogênicas/antagonistas & inibidores , Quinazolinas/uso terapêutico , Neoplasias Supratentoriais/tratamento farmacológico , Proteínas Supressoras de Tumor/efeitos dos fármacos , Adulto , Idoso , Antineoplásicos/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Área Sob a Curva , Dacarbazina/administração & dosagem , Esquema de Medicação , Resistencia a Medicamentos Antineoplásicos , Receptores ErbB/genética , Cloridrato de Erlotinib , Feminino , Glioma/metabolismo , Glioma/patologia , Humanos , Imuno-Histoquímica , Hibridização in Situ Fluorescente , Masculino , Pessoa de Meia-Idade , Mutação , PTEN Fosfo-Hidrolase , Monoéster Fosfórico Hidrolases/genética , Fosforilação , Proteínas Serina-Treonina Quinases/metabolismo , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Proto-Oncogênicas c-akt , Quinazolinas/administração & dosagem , Neoplasias Supratentoriais/metabolismo , Neoplasias Supratentoriais/patologia , Temozolomida , Proteínas Supressoras de Tumor/genética
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