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1.
Rev. Flum. Odontol. (Online) ; 1(66): 1-11, jan-abr.2025. tab, ilus
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1570439

RESUMO

Introduction: This case report presents the intentional periodontal maintenance of two periodontal hopeless lower central incisors with a multidisciplinary approach and 20-year follow-up. Case presentation: A 36-year-old male, in 2001, was diagnosed with aggressive periodontitis, gingival swelling, bleeding, and mandibular central incisors with mobility and poor prognosis. Following periodontal therapy (phase I), root canal treatment, and occlusal adjustment, #31 and #41 were gently extracted to remove the granulation tissues, calculus, and infected cementum from the root surface. Then, tetracycline-HCl was applied for 5 minutes on the root surfaces. The teeth were repositioned into the sockets and splinted with a lingual bar. At 3 months, the bar was removed, and a free gingival autogenous graft was done to improve the local keratinized tissue width. Mobility scores, pocket depths, and clinical attachment levels were recorded, and radiographs were taken at 1, 5, and 20 years. The 5-year follow-up showed that the teeth were clinically and radiographically in function. There was a reduction in probing depth and a gain in clinical attachment and radiographic alveolar bone levels. After 20 years, #41 was stable, but #31 had external root resorption, leading to a new treatment plan (dental implants) and extraction. Conclusion: The clinical result of this case was satisfactory for 20 years. Intentional periodontal maintenance of the teeth may be an alternative treatment, even considering the high level of complexity.


Assuntos
Humanos , Masculino , Adulto , Planejamento de Assistência ao Paciente , Periodontia , Procedimentos Cirúrgicos Operatórios , Tempo , Perda da Inserção Periodontal
2.
Arq. bras. oftalmol ; Arq. bras. oftalmol;88(2): e2023, 2025. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1574013

RESUMO

ABSTRACT Purpose: To compare the outcomes of intravitreal dexamethasone implant used as either an adjuvant or a switching therapy for diabetic macular edema in patients with poor anatomic response after three consecutive monthly injections of ranibizumab. Methods: This retrospective study included patients with diabetic macular edema who received three consecutive doses of ranibizumab as initial therapy and demonstrated poor response. A single dose of intravitreal de xamethasone implant was administered to these patients. The patients were divided into two groups according to the treatment modalities: the adjuvant therapy group, consisting of patients who continued treatment with ranibizumab injection after receiving intravitreal dexamethasone implant, and the switch therapy group, consisting of patients who were switched from ranibizumab treatment to intravitreal dexamethasone implant as needed. The main outcome measurements were best corrected visual acuity and central retinal thickness at baseline and at 3, 6, 9, and 12 months of follow-up. Results: In this study that included 64 eyes of 64 patients, the best corrected visual acuity and central retinal thickness values did not significantly differ between the groups at baseline and at 6 months of follow-up (p>0.05). However, at 12 months, the best corrected visual acuity values in the adjuvant and switch therapy groups were 0.46 and 0.35 LogMAR, respectively (p=0.012), and the central retinal thickness values were 344.8 and 270.9, respectively (p=0.007). Conclusions: In a real-world setting, it seems more reasonable to use intravitreal dexamethasone implant as a switch therapy rather than an adjuvant therapy for diabetic macula edema refractory to ranibizumab despite three consecutive monthly injections of ranibizumab. Patients switched to intravitreal dexamethasone implant were found to have better anatomic and visual outcomes at 12 months than those who continued ranibizumab therapy despite their less-than-optimal responses.

3.
Arq. bras. oftalmol ; Arq. bras. oftalmol;88(2): e2024, 2025. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1574016

RESUMO

ABSTRACT Purpose: This study aimed to evaluate the morphometric and volumetric dimensions of the lacrimal gland in patients with inactive thyroid eye disease and compare them with the values reported in the literature. Methods: This case series evaluated consecutive patients with inactive thyroid eye disease treated at a tertiary eye hospital from 2015 to 2020. The patients' baseline demographics and clinical characteristics were obtained. The axial and coronal length, width, and volume of the lacrimal gland were measured on computed tomography scan images, and the results were statistically analyzed. Results: A total of 21 patients (42 orbits) with inactive thyroid eye disease were evaluated. Their mean age was 49.0 ± 14.6 years, and 12 (57.1%) of them were men. The main complaint was dryness, and the majority of the patients had good vision and mild proptosis. The mean axial length and width of the lacrimal gland were 19.3 ± 3.9 mm and 7.5 ± 2.1 mm, respectively; coronal length and width, 20.4 ± 4.5 mm and 7.5 ± 2.1 mm, respectively; and lacrimal gland volume, 0.825 ± 0.326 mm3. Age, sex, or laterality were not found to be determinants of lacrimal gland enlargement. Conclusion: Patients with thyroid eye disease have enlarged lacrimal gland even in the nonactive phase of the disease multifactorial aspects influence the lacrimal gland in thyroid eye disease, making it difficult to establish a clear correlation with predisposing factors. Further studies are warranted to better understand the association between thyroid eye disease and the lacrimal gland.

5.
Arq Bras Oftalmol ; 88(2): e20240113, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39319919

RESUMO

PURPOSE: This study aimed to evaluate the morphometric and volumetric dimensions of the lacrimal gland in patients with inactive thyroid eye disease and compare them with the values reported in the literature. METHODS: This case series evaluated consecutive patients with inactive thyroid eye disease treated at a tertiary eye hospital from 2015 to 2020. The patients' baseline demographics and clinical characteristics were obtained. The axial and coronal length, width, and volume of the lacrimal gland were measured on computed tomography scan images, and the results were statistically analyzed. RESULTS: A total of 21 patients (42 orbits) with inactive thyroid eye disease were evaluated. Their mean age was 49.0 ± 14.6 years, and 12 (57.1%) of them were men. The main complaint was dryness, and the majority of the patients had good vision and mild proptosis. The mean axial length and width of the lacrimal gland were 19.3 ± 3.9 mm and 7.5 ± 2.1 mm, respectively; coronal length and width, 20.4 ± 4.5 mm and 7.5 ± 2.1 mm, respectively; and lacrimal gland volume, 0.825 ± 0.326 mm3. Age, sex, or laterality were not found to be determinants of lacrimal gland enlargement. CONCLUSION: Patients with thyroid eye disease have enlarged lacrimal gland even in the nonactive phase of the disease multifactorial aspects influence the lacrimal gland in thyroid eye disease, making it difficult to establish a clear correlation with predisposing factors. Further studies are warranted to better understand the association between thyroid eye disease and the lacrimal gland.


Assuntos
Oftalmopatia de Graves , Aparelho Lacrimal , Tomografia Computadorizada por Raios X , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Adulto , Aparelho Lacrimal/diagnóstico por imagem , Aparelho Lacrimal/patologia , Oftalmopatia de Graves/diagnóstico por imagem , Oftalmopatia de Graves/patologia , Oftalmopatia de Graves/complicações , Tamanho do Órgão , Idoso , Estudos Retrospectivos
6.
Artigo em Inglês | MEDLINE | ID: mdl-39258658

RESUMO

Rotavirus, a dsRNA virus in the Reoviridae family, shows a segmented genome. The VP1 gene encodes the RNA-dependent RNA polymerase (RdRp). This study aims to develop a multiepitope-based vaccine targeting RdRp using immunoinformatic approaches. In this study, 100 available nucleotide sequences of VP1-Rotavirus belonging to different strains across the world were retrieved from NCBI database. The selected sequences were aligned, and a global consensus sequence was developed by using CLC work bench. The study involved immunoinformatic approaches and molecular docking studies to reveal the promiscuous epitopes that can be eventually used as active vaccine candidates for Rotavirus. In total, 27 highly immunogenic, antigenic, and non-allergenic T-cell and B-cell epitopes were predicted for the Multiepitope vaccine (MEV) against rotavirus. It was also observed that MEV can prove to be effective worldwide due to its high population coverage, demonstrating the consistency of this vaccine. Moreover, there is a high docking interaction and immunological response with a binding score of -50.2 kcal/mol, suggesting the vaccine's efficacy. Toll-like receptors (TLRs) also suggest that the vaccine is physiologically and immunologically effective. Collectively, our data point to an effective MEV against rotavirus that can effectively reduce viral infections and improve the health status worldwide.


Assuntos
Simulação de Acoplamento Molecular , Vacinas contra Rotavirus , Rotavirus , Vacinas de Subunidades Antigênicas , Rotavirus/imunologia , Rotavirus/genética , Vacinas de Subunidades Antigênicas/imunologia , Vacinas de Subunidades Antigênicas/genética , Vacinas contra Rotavirus/imunologia , RNA Polimerase Dependente de RNA/imunologia , RNA Polimerase Dependente de RNA/genética , RNA Polimerase Dependente de RNA/química , Biologia Computacional , Epitopos de Linfócito T/imunologia , Epitopos de Linfócito T/genética , Humanos , Epitopos/imunologia , Epitopos/genética , Epitopos de Linfócito B/imunologia , Epitopos de Linfócito B/genética , Infecções por Rotavirus/prevenção & controle , Infecções por Rotavirus/imunologia , Imunoinformática , Vacinas de Subunidades Proteicas
7.
Arq Bras Oftalmol ; 88(2): e20230229, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39319910

RESUMO

PURPOSE: To compare the outcomes of intravitreal dexamethasone implant used as either an adjuvant or a switching therapy for diabetic macular edema in patients with poor anatomic response after three consecutive monthly injections of ranibizumab. METHODS: This retrospective study included patients with diabetic macular edema who received three consecutive doses of ranibizumab as initial therapy and demonstrated poor response. A single dose of intravitreal de xamethasone implant was administered to these patients. The patients were divided into two groups according to the treatment modalities: the adjuvant therapy group, consisting of patients who continued treatment with ranibizumab injection after receiving intravitreal dexamethasone implant, and the switch therapy group, consisting of patients who were switched from ranibizumab treatment to intravitreal dexamethasone implant as needed. The main outcome measurements were best corrected visual acuity and central retinal thickness at baseline and at 3, 6, 9, and 12 months of follow-up. RESULTS: In this study that included 64 eyes of 64 patients, the best corrected visual acuity and central retinal thickness values did not significantly differ between the groups at baseline and at 6 months of follow-up (p>0.05). However, at 12 months, the best corrected visual acuity values in the adjuvant and switch therapy groups were 0.46 and 0.35 LogMAR, respectively (p=0.012), and the central retinal thickness values were 344.8 and 270.9, respectively (p=0.007). CONCLUSIONS: In a real-world setting, it seems more reasonable to use intravitreal dexamethasone implant as a switch therapy rather than an adjuvant therapy for diabetic macula edema refractory to ranibizumab despite three consecutive monthly injections of ranibizumab. Patients switched to intravitreal dexamethasone implant were found to have better anatomic and visual outcomes at 12 months than those who continued ranibizumab therapy despite their less-than-optimal responses.


Assuntos
Dexametasona , Retinopatia Diabética , Implantes de Medicamento , Glucocorticoides , Injeções Intravítreas , Edema Macular , Ranibizumab , Acuidade Visual , Humanos , Edema Macular/tratamento farmacológico , Edema Macular/etiologia , Dexametasona/administração & dosagem , Retinopatia Diabética/tratamento farmacológico , Retinopatia Diabética/complicações , Masculino , Estudos Retrospectivos , Feminino , Ranibizumab/administração & dosagem , Pessoa de Meia-Idade , Resultado do Tratamento , Glucocorticoides/administração & dosagem , Idoso , Inibidores da Angiogênese/administração & dosagem , Quimioterapia Adjuvante , Fatores de Tempo , Tomografia de Coerência Óptica , Substituição de Medicamentos
8.
Sci Rep ; 14(1): 21599, 2024 09 16.
Artigo em Inglês | MEDLINE | ID: mdl-39284902

RESUMO

Mentha arvensis is an herbaceous plant commonly known as peppermint or Japanese mint. This study investigated the toxic potential and repellent efficacy of M. arvensis essential oil (MaEO) at varying concentrations (15.625-250 mg/mL) in Nauphoeta cinerea, along with its impact on biochemical parameters in N. cinerea. The potential of the major compounds as a new analgesic target was investigated using molecular docking. The essential oil was analyzed by gas Chromatography-mass spectrometry (GC-MS) and the toxic potential, repellent property, and changes in lipid peroxidation (LPO) levels were evaluated as markers of oxidative stress. GC-MS results revealed that the main components were oxygenated monoterpenes such as menthol (71.31%), mentone (13.34%) and isomentone (5.35%). MaEO significantly reduced lipid peroxidation (LPO), the levels of non-protein thiols and iron(II) at the concentration of 125 mg/mL in N. cinerea. Furthermore, the major components, L-(-)-Menthol and menthone demonstrated high gastrointestinal absorption and high affinity with the target protein, suggesting possible links that contribute to the analgesic effect of MaEO.


Assuntos
Antioxidantes , Peroxidação de Lipídeos , Mentha , Óleos Voláteis , Mentha/química , Antioxidantes/farmacologia , Antioxidantes/química , Óleos Voláteis/farmacologia , Óleos Voláteis/química , Peroxidação de Lipídeos/efeitos dos fármacos , Animais , Simulação de Acoplamento Molecular , Estresse Oxidativo/efeitos dos fármacos , Cromatografia Gasosa-Espectrometria de Massas , Repelentes de Insetos/farmacologia , Repelentes de Insetos/química , Óleos de Plantas/farmacologia , Óleos de Plantas/química
9.
Mycopathologia ; 189(5): 74, 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39107598

RESUMO

BACKGROUND: Mycotic keratitis (MK) represents a corneal infection, with Fusarium species identified as the leading cause. Fusarium is a genus of filamentous fungi commonly found in soil and plants. While many Fusarium species are harmless, some can cause serious infections in humans and animals, particularly Fusarium keratitis, that can lead to severe ocular infections, prevalent cause of monocular blindness in tropical and subtropical regions of the world. Due to its incidence and importance in ophthalmology, we conducted a systematic analysis of clinical cases to increase our understanding of Fusarium keratitis by gathering clinical and demographic data. METHODS: To conduct an analysis of Fusarium keratitis, we looked through the literature from the databases PubMed, Embase, Lilacs, and Google Scholar and found 99 papers that, between March 1969 and September 2023, corresponded to 163 cases of Fusarium keratitis. RESULTS: Our analysis revealed the Fusarium solani species complex as the predominant isolate, with females disproportionately affected by Fusarium keratitis. Notably, contact lens usage emerged as a significant risk factor, implicated in nearly half of cases. Diagnosis primarily relied on culture, while treatment predominantly involved topical natamycin, amphotericin B, and/or voriconazole. Surprisingly, our findings demonstrated a prevalence of cases originating from the United States, suggesting potential underreporting and underestimation of this mycosis in tropical regions. This shows the imperative for heightened vigilance, particularly in underdeveloped regions with substantial agricultural activity, where Fusarium infections may be more prevalent than currently reported. CONCLUSION: Our study sheds light on the clinical complexities of Fusarium keratitis and emphasizes the need for further research and surveillance to effectively tackle this vision-threatening condition. Furthermore, a timely identification and early initiation of antifungal treatment appear to be as important as the choice of initial treatment itself.


Assuntos
Antifúngicos , Fusariose , Fusarium , Ceratite , Humanos , Ceratite/microbiologia , Ceratite/epidemiologia , Ceratite/tratamento farmacológico , Fusarium/isolamento & purificação , Fusarium/classificação , Fusarium/genética , Fusariose/microbiologia , Fusariose/tratamento farmacológico , Fusariose/epidemiologia , Fusariose/diagnóstico , Antifúngicos/uso terapêutico , Antifúngicos/farmacologia , Infecções Oculares Fúngicas/microbiologia , Infecções Oculares Fúngicas/epidemiologia , Infecções Oculares Fúngicas/tratamento farmacológico , Feminino , Voriconazol/uso terapêutico , Prevalência , Fatores de Risco , Masculino , Adulto , Pessoa de Meia-Idade , Lentes de Contato/microbiologia , Lentes de Contato/efeitos adversos , Anfotericina B/uso terapêutico , Natamicina/uso terapêutico , Idoso , Adulto Jovem , Adolescente
10.
Autops Case Rep ; 14: e2024509, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39176103

RESUMO

The effectiveness of the autopsy as an educational tool in forensic medicine courses has been widely acknowledged, and medical students were expected to attend regularly. Nevertheless, the use of autopsies for teaching has dramatically declined in recent years and worldwide despite their high-value benefits. This study aims to understand the importance and relevance of attending autopsies during forensic teaching sessions and identify any challenges that may impede attendance. A self-administered online questionnaire that assesses the knowledge, attitudes, and practices related to autopsies attendance was distributed to fourth-year medical students at the National Defence University of Malaysia and Universiti Sains Islam Malaysia. A total of 99 respondents were involved in this study. Our findings indicate that most respondents (over 85%) demonstrated good knowledge of forensic medicine. Pearson's statistical test revealed a significant correlation between the knowledge and students' attitudes toward autopsy. This study demonstrates the need to strategically integrate autopsy attendance into medical curricula to encourage constructive attitudes and practices among medical students. Students gain the most benefits from frequently attending autopsies. Passionate educators can conduct preparatory sessions to set expectations and address concerns, encourage students to process their experiences, and reinforce learning outcomes in the mortuary setting. Mandatory autopsy teaching should be integrated into the curriculum to ensure medical students have the necessary skills and knowledge to become competent doctors.

11.
Braz J Biol ; 84: e281700, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39140503

RESUMO

Human activities are altering the existing patterns of Land Use Land Cover (LULC) and Land Surface Temperature (LST) on a global scale. However, long-term trends of LULC and LST are largely unknown in many remote mountain areas such as the Karakorum. . The objective of our study therefore was to evaluate the historical changes in land use and land cover (LULC) in an alpine environment located in Islamabad Capital Territory, Pakistan. We used Landsat satellite pictures (namely Landsat 5 TM and Landsat 8 OLI) from the years 1988, 2002, and 2016 and applied the Maximum Likelihood Classification (MLC) approach to categorize land use classes. Land Surface Temperatures (LST) were calculated using the thermal bands (6, 10, and 11) of Landsat series data. The correlation between the Human Modification Index (HMI) and LULC as well as LST was evaluated by utilizing data from Google Earth Engine (GEE). Over the study period, the urbanized area increased by 9.94%, whilst the agricultural and bare soil areas decreased by 3.81% and 3.94%, respectively. The findings revealed a significant change in the LULC with a decrease of 1.99% in vegetation. The highest LST class exhibited a progressive trend, with an increase from 12.27% to 48.48%. Based on the LST analysis, the built-up area shows the highest temperature, followed by the barren, agricultural, and vegetation categories. Similarly, the HMI for different LST categories indicates that higher LST categories have higher levels of human alteration compared to lower LST categories, with a strong correlation (R-value = 0.61) between HMI and LST. The findings can be utilized to promote sustainable urban management and for biodiversity conservation efforts. The work also has the potential of utilizing it to protect delicate ecosystems from human interference and to formulate strategies and regulations for sustainable urban growth, including aspects of land utilization and zoning, reduction of urban heat stress, and urban infrastructure.


Assuntos
Temperatura , Paquistão , Humanos , Agricultura , Monitoramento Ambiental/métodos , Urbanização , Atividades Humanas , Imagens de Satélites
12.
Arq Bras Cardiol ; 121(8): e20230670, 2024 Aug.
Artigo em Português, Inglês | MEDLINE | ID: mdl-39194040

RESUMO

BACKGROUND: Heart failure (HF) is a leading cause of hospitalization and mortality worldwide and places a great economic burden on healthcare systems. Identification of prognostic factors in HF patients is of great importance to establish optimal management strategies and to avoid unnecessary invasive and costly procedures in end-stage patients. OBJECTIVES: In the current study, we aimed to investigate the association between diastolic strain parameters including E/e' SR, and short-term outcomes in advanced HF patients. METHODS: The population study included 116 advanced HF with reduced ejection fraction (HFrEF) patients. Clinical, laboratory, and echocardiographic evaluations of the patients were performed within the first 24 hours of hospital admission. Patients were followed for one month and any re-hospitalization due to worsening of HF symptoms and any mortality was recorded. The level of significance adopted in the statistical analysis was 5%. RESULTS: E/e' SR was significantly higher in the patient group compared to the control group (p=0.001). During one-month follow-up, 13.8% of patients died and 37.1% of patients were rehospitalized. Serum NT-ProBNP (p=0.034) and E/e' SR (p=0.033) were found to be independent predictors of mortality and ACEI use (p=0.027) and apical 3C strain (p=0.011) were found to be independent predictors of rehospitalization in the patient group. CONCLUSION: Findings of the current prospective study demonstrate that E/e' SR measured by speckle tracking echocardiography is an independent and sensitive predictor of short-term mortality in advanced HFrEF patients and may have a role in the identification of end-stage HFrEF patients.


FUNDAMENTO: A insuficiência cardíaca é uma das principais causas de hospitalização e mortalidade em todo o mundo e representa um grande fardo económico para os sistemas de saúde. A identificação de fatores prognósticos em pacientes com IC é de grande importância para estabelecer estratégias de manejo ideais e evitar procedimentos invasivos e dispendiosos desnecessários em pacientes em estágio terminal. OBJETIVOS: No presente estudo, nosso objetivo foi investigar a associação entre parâmetros de strain diastólico, incluindo E/e' SR, e resultados de curto prazo em pacientes com IC avançada. MÉTODOS: O estudo populacional incluiu 116 pacientes com insuficiência cardíaca avançada com fração de ejeção reduzida (ICFEr) avançada. Avaliações clínicas, laboratoriais e ecocardiográficas dos pacientes foram realizadas nas primeiras 24 horas de internação. Os pacientes foram acompanhados por um mês e qualquer reinternação por piora dos sintomas de IC e qualquer mortalidade foi registrada. O nível de significância adotado na análise estatística foi de 5%. RESULTADOS: A E/e' SR foi significativamente maior no grupo de pacientes em comparação ao grupo controle (p=0,001). Durante o acompanhamento de um mês, 13,8% dos pacientes morreram e 37,1% dos pacientes foram reinternados. NT-ProBNP sérico (p=0,034) e E/e' SR (p=0,033) foram considerados preditores independentes de mortalidade e o uso de IECA (p=0,027) e strain 3C apical (p=0,011) foram considerados independentes preditores de reinternação no grupo de pacientes. CONCLUSÃO: Os resultados do presente estudo prospectivo demonstram que a E/e' SR medida pela ecocardiografia com speckle tracking é um preditor independente e sensível de mortalidade em curto prazo em pacientes com ICFEr avançada e pode ter um papel na identificação de pacientes com ICFEr em estágio terminal.


Assuntos
Insuficiência Cardíaca , Readmissão do Paciente , Volume Sistólico , Humanos , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Masculino , Feminino , Readmissão do Paciente/estatística & dados numéricos , Pessoa de Meia-Idade , Idoso , Volume Sistólico/fisiologia , Prognóstico , Diástole/fisiologia , Fatores de Tempo , Peptídeo Natriurético Encefálico/sangue , Fatores de Risco , Ecocardiografia , Estudos Prospectivos , Fragmentos de Peptídeos/sangue , Estatísticas não Paramétricas , Valores de Referência
13.
Clin Transl Oncol ; 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39090421

RESUMO

BACKGROUND: Primary carcinoma of the ovary (OCs) are responsible for a significant number of deaths related to cancer, and have the highest rate of death related to cancers of the female reproductive organs. Programmed cell death 1 (PD1) protein, acts as an immune checkpoint, and has an important role in the down-regulation of the immune system by preventing the activation of T-cells, which will weaken the autoimmunity and increases self-tolerance. This study aimed at the evaluation of the immunohistochemical (IHC) expression of PD-L1 in various primary surface ovarian epithelial tumours and to test its correlation with different clinicopathological parameters together with the expression of a panel of P53, ER and PR. METHODS: A set of 102 cases of primary ovarian surface epithelial neoplasms (benign, borderline and malignant) were collected to construct Tissue Microarray (TMA) using 3 tissue cores from each case. IHC for PD-L1, p53, PR and ER was performed. The expression of PD-L1 was evaluated in relation to some clinicopathological parameters and to the expression patterns of other markers. RESULTS: Expression of PD-L1 was detected in about 51% (n = 36) of malignant tumours. The malignant group significantly showed PD-L1 positivity compared to borderline and benign groups. The malignant tumours significantly showed PD-L1 and total p53 positivity in comparison to borderline group. Also, malignant tumours significantly showed higher combined positivity of PD-L1 and either PR or ER compared to borderline and benign lesions. No significant correlation was appreciated between PD-L1 expression and with any of the studied clinicopathological parameters. CONCLUSIONS: This study showed a significant PD-L1 expression in malignant primary surface epithelial tumours. Construction of a panel of IHC markers, including PD-L1, could have a potential value to define patients those would benefit from the addition of immunotherapy to the treatment plan.

14.
Arq. bras. cardiol ; Arq. bras. cardiol;121(8): e20230670, ago. 2024. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1568810

RESUMO

Resumo Fundamento A insuficiência cardíaca é uma das principais causas de hospitalização e mortalidade em todo o mundo e representa um grande fardo económico para os sistemas de saúde. A identificação de fatores prognósticos em pacientes com IC é de grande importância para estabelecer estratégias de manejo ideais e evitar procedimentos invasivos e dispendiosos desnecessários em pacientes em estágio terminal. Objetivos No presente estudo, nosso objetivo foi investigar a associação entre parâmetros de strain diastólico, incluindo E/e' SR, e resultados de curto prazo em pacientes com IC avançada. Métodos O estudo populacional incluiu 116 pacientes com insuficiência cardíaca avançada com fração de ejeção reduzida (ICFEr) avançada. Avaliações clínicas, laboratoriais e ecocardiográficas dos pacientes foram realizadas nas primeiras 24 horas de internação. Os pacientes foram acompanhados por um mês e qualquer reinternação por piora dos sintomas de IC e qualquer mortalidade foi registrada. O nível de significância adotado na análise estatística foi de 5%. Resultados A E/e' SR foi significativamente maior no grupo de pacientes em comparação ao grupo controle (p=0,001). Durante o acompanhamento de um mês, 13,8% dos pacientes morreram e 37,1% dos pacientes foram reinternados. NT-ProBNP sérico (p=0,034) e E/e' SR (p=0,033) foram considerados preditores independentes de mortalidade e o uso de IECA (p=0,027) e strain 3C apical (p=0,011) foram considerados independentes preditores de reinternação no grupo de pacientes. Conclusão Os resultados do presente estudo prospectivo demonstram que a E/e' SR medida pela ecocardiografia com speckle tracking é um preditor independente e sensível de mortalidade em curto prazo em pacientes com ICFEr avançada e pode ter um papel na identificação de pacientes com ICFEr em estágio terminal.


Abstract Background Heart failure (HF) is a leading cause of hospitalization and mortality worldwide and places a great economic burden on healthcare systems. Identification of prognostic factors in HF patients is of great importance to establish optimal management strategies and to avoid unnecessary invasive and costly procedures in end-stage patients. Objectives In the current study, we aimed to investigate the association between diastolic strain parameters including E/e' SR, and short-term outcomes in advanced HF patients. Methods The population study included 116 advanced HF with reduced ejection fraction (HFrEF) patients. Clinical, laboratory, and echocardiographic evaluations of the patients were performed within the first 24 hours of hospital admission. Patients were followed for one month and any re-hospitalization due to worsening of HF symptoms and any mortality was recorded. The level of significance adopted in the statistical analysis was 5%. Results E/e' SR was significantly higher in the patient group compared to the control group (p=0.001). During one-month follow-up, 13.8% of patients died and 37.1% of patients were rehospitalized. Serum NT-ProBNP (p=0.034) and E/e' SR (p=0.033) were found to be independent predictors of mortality and ACEİ use (p=0.027) and apical 3C strain (p=0.011) were found to be independent predictors of rehospitalization in the patient group. Conclusion Findings of the current prospective study demonstrate that E/e' SR measured by speckle tracking echocardiography is an independent and sensitive predictor of short-term mortality in advanced HFrEF patients and may have a role in the identification of end-stage HFrEF patients.

15.
Int. j. morphol ; 42(4): 970-976, ago. 2024. ilus, tab
Artigo em Inglês | LILACS | ID: biblio-1569272

RESUMO

SUMMARY: Since machine learning algorithms give more reliable results, they have been used in the field of health in recent years. The orbital variables give very successful results in classifying sex correctly. This research has focused on sex determination using certain variables obtained from the orbital images of the computerized tomography (CT) by using machine learning algorithms (ML). In this study 12 variables determined on 600 orbital images of 300 individuals (150 men and 150 women) were tested with different ML. Decision tree (DT), K-Nearest Neighbour (KNN), Logistic Regression (LR), Random Forest (RF), Linear Discriminant Analysis (LDA), and Naive Bayes (NB) algorithms of ML were used for unsupervised learning. Statistical analyses of the variables were conducted with Minitab® 21.2 (64-bit) program. ACC rate of NB, DT, KNN, and LR algorithms was found as % 83 while the ACC rate of LDA and RFC algorithms was determined as % 85. According to Shap analysis, the variable with the highest degree of effect was found as BOW. The study has determined the sex with high accuracy at the ratios of 0.83 and 0.85 through using the variables of the orbital CT images, and the related morphometric data of the population under question was acquired, emphasizing the racial variation.


Dado que los algoritmos de aprendizaje automático dan resultados más fiables, en los últimos años han sido utilizados en el campo de la salud. Las variables orbitales dan resultados muy exitosos a la hora de clasificar correctamente el sexo. Esta investigación se ha centrado en la determinación del sexo utilizando determinadas variables obtenidas a partir de las imágenes orbitales de la tomografía computarizada (TC) mediante el uso de algoritmos de aprendizaje automático (AA). En este estudio se probaron 12 variables determinadas en 600 imágenes orbitales de 300 individuos (150 hombres y 150 mujeres) con diferentes AA. Se utilizaron algoritmos de AA de árbol de decisión (DT), K-Nearest Neighbour, regresión logística (RL), Random Forest (RF), análisis discriminante lineal (ADL) y Naive Bayes (NB) para el aprendizaje no supervisado. Los análisis estadísticos de las variables se realizaron con el programa Minitab® 21.2 (64 bits). La tasa de ACC de los algoritmos NB, DT, KNN y RL se encontró en % 83, mientras que la tasa de ACC de los algoritmos ADL y RFC se determinó en % 85. Según el análisis de Sharp, la variable con el mayor grado de efecto se encontró como BOW. El estudio determinó el sexo con alta precisión en las proporciones de 0,83 y 0,85 mediante el uso de las variables de las imágenes de TC orbitales, y se adquirieron los datos morfométricos relacionados de la población en cuestión, enfatizando la variación racial.


Assuntos
Humanos , Masculino , Feminino , Órbita/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Determinação do Sexo pelo Esqueleto , Aprendizado de Máquina , Órbita/anatomia & histologia , Algoritmos , Modelos Logísticos , Antropologia Forense , Imageamento Tridimensional
16.
Int Arch Otorhinolaryngol ; 28(3): e481-e486, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38974639

RESUMO

Introduction Unplanned hospital returns are frequent and may be preventable. Objective To comprehend the reasons for unplanned hospital readmission and return to the Outpatient Department (OPD) and Emergency Department (ED) within 60 days after discharge following head and neck surgery (HNS) at a tertiary care center in Saudi Arabia. Methods In the present retrospective study, the medical records of all patients who underwent HNS for benign and malignant conditions between January 2015 and June 2022 were reviewed in terms of demographic data, comorbidities, and reasons for hospital return. Results Out of 1,030 cases, 119 (11.55%) returned to the hospital within 60 days after discharge, 19 of which (1.84%) were readmitted. In total, 90 (8.74%) patients returned to the OPD, and 29 (2.82%), to the ED. The common reasons for readmission included infections (26.32%) and neurological symptoms (21.05%). For OPD visits, the common causes were hematoma (20%) and neurological symptoms (14.44%). For ED returns, the frequent causes were neurological symptoms (20.69%) and equipment issues (17.24%). Compared with nonreadmitted patients, readmitted patients had a higher preoperative baseline health burden when examined using the American Society of Anesthesiologists (ASA) score ( p = 0.004) and the Cumulative Illness Rating Scale (CIRS; p = 0.002). Conclusion The 60-day rates of unplanned hospital return to the OPD and ED were of 8.74% and 2.82% respectively, and 1.84% of the patients were readmitted. Hematoma, infections, and neurological symptoms were common causes. Addressing the common reasons may be beneficial to decrease postoperative hospital visits.

17.
Artigo em Inglês | MEDLINE | ID: mdl-39036815

RESUMO

The brown dog tick, Rhipicephalus linnaei (Audouin, 1826), is distributed across the American continent and is formerly known as the "tropical lineage". It belongs to the Rhipicephalus sanguineus (Latreille, 1806) species complex, referred to as R. sanguineus (sensu lato). Mitochondrial genome sequences are frequently used for the identification and represent reference material for field studies. In the present study, the entire mitochondrial genomes of R. linnaei (∼15 kb) collected from dogs in Mexico were sequenced and compared with available mitogenomes of R. sanguineus (s.l.). The mitochondrial genome is ∼90% identical to the reference genome of R. sanguineus (sensu stricto, former "temperate lineage") and > 99% identical to R. linnaei mitogenome derived from the neotype. Two additional mitogenomes were obtained and described as R. linnaei and R. turanicus from dogs in Saudi Arabia. The present study delivers a molecular reference for R. linnaei from America and complements R. linnaei mitogenomes from Africa, Asia and Australia. We propose to consider the complete mitogenome, as the reference for American R. linnaei, even when partial mitochondrial cox1, 12S rRNA or 16S rRNA genes are characterised.

18.
Clinics (Sao Paulo) ; 79: 100404, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38936289

RESUMO

OBJECTIVE: This study aimed to assess the effects of art therapy on anxiety among children and adolescents. METHODS: We searched several databases, including PubMed, Web of Science, Embase (via Ovid), PsychINFO (through EBSCO), and The Cochrane Library, comprising the Cochrane Database of Systematic Reviews and the Cochrane Central Register of Controlled Trials. Additionally, Chinese databases such as CNKI (China National Knowledge Infrastructure) and Wan Fang Data were explored from their beginnings until October 22, 2023. Studies that investigated the impact of art therapy on anxiety compared to a control group were included. The methodological quality of these randomized controlled trials was evaluated using the Cochrane Handbook's risk of bias instrument. RESULTS: Six studies involving 422 participants were included. The findings indicated a notable decrease in anxiety symptoms due to art therapy, with a Standardized Mean Difference (SMD) of -1.42, 95% Confidence Interval (95%CI -2.33, -0.51), p < 0.002. Notably, there was pronounced heterogeneity, as evidenced by Tau2 = 1.41, Chi2 = 101.19, df = 6, and I² = 94%, with Z = 3.06. CONCLUSION: Art therapy significantly improved the anxiety symptoms of children and adolescents, positioning it as an effective means of treating anxiety.


Assuntos
Ansiedade , Arteterapia , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Criança , Adolescente , Arteterapia/métodos , Ansiedade/terapia , Resultado do Tratamento , Feminino , Masculino
20.
Cir Cir ; 92(2): 205-210, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38782375

RESUMO

OBJECTIVE: The aim of this study is to evaluate the effect of erector spinae plane block (ESPB) as a rescue therapy in the recovery room. MATERIALS AND METHODS: This single-center historical cohort study included patients who received either ESPB or intravenous meperidine for pain management in the recovery room. Patients' numeric rating scale (NRS) scores and opoid consumptions were evaluated. RESULTS: One hundred and eight patients were included in the statistical analysis. Sixty-two (57%) patients received ESPB postoperatively (pESPB) and 46 (43%) patients were managed with IV meperidine boluses only (IV). The cumulative meperidine doses administered were 0 (0-40) and 30 (10-80) mg for the pESPB and IV groups, respectively (p < 0.001). NRS scores of group pESPB were significantly lower than those of Group IV on T30 and T60. CONCLUSION: ESPB reduces the frequency of opioid administration and the amount of opioids administered in the early post-operative period. When post-operative rescue therapy is required, it should be considered before opioids.


OBJETIVO: Evaluar el efecto del bloqueo del plano erector espinal (ESPB) como terapia de rescate en la sala de recuperación. MÉTODO: Este estudio de cohortes histórico de un solo centro incluyó a pacientes que recibieron ESPB o meperidina intravenosa para el tratamiento del dolor en la sala de recuperación. Se evaluaron las puntuaciones de la escala de calificación numérica (NRS) de los pacientes y los consumos de opiáceos. RESULTADOS: En el análisis estadístico se incluyeron 108 pacientes. Recibieron ESPB 62 (57%) pacientes y los otros 46 (43%) fueron manejados solo con bolos de meperidina intravenosa. Las dosis acumuladas de meperidina administradas fueron 0 (0-40) y 30 (10-80) mg para los grupos de ESPB y de meperidina sola, respectivamente (p < 0.001). Las puntuaciones de dolor del grupo ESPB fueron significativamente más bajas que las del grupo de meperidina sola en T30 y T60. CONCLUSIONES: El ESPB reduce la frecuencia de administración de opiáceos y la cantidad de estos administrada en el posoperatorio temprano. Cuando se requiera terapia de rescate posoperatoria, se debe considerar antes que los opiáceos.


Assuntos
Analgésicos Opioides , Meperidina , Bloqueio Nervoso , Dor Pós-Operatória , Músculos Paraespinais , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Dor Pós-Operatória/prevenção & controle , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/etiologia , Bloqueio Nervoso/métodos , Músculos Paraespinais/inervação , Adulto , Meperidina/administração & dosagem , Meperidina/uso terapêutico , Analgésicos Opioides/administração & dosagem , Analgésicos Opioides/uso terapêutico , Estudos de Coortes , Medição da Dor , Idoso , Colecistectomia , Anestésicos Locais/administração & dosagem , Estudos Retrospectivos
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