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1.
Acad Pathol ; 11(2): 100110, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38560425

RESUMEN

Entrustable professional activities (EPAs) are observable clinical skills and/or procedures that have been introduced into medical education at the student and resident levels in most specialties to determine readiness to advance into residency or independent practice, respectively. This publication describes the process and outcomes of a pilot study looking at the feasibility of using two anatomic pathology and two clinical pathology EPAs in pathology residency in 6 pathology residency programs that volunteered for the study. Faculty development on EPAs and their assessment was provided to pilot program faculty, and EPA assessment tools were developed and used by the pilot programs. Pre- and post-study surveys were given to participating residents, faculty, and program directors to gauge baseline practices and to gather feedback on the EPA implementation experience. Results demonstrated overall good feasibility in implementing EPAs. Faculty acceptance of EPAs varied and was less than that of program directors. Residents reported a significant increase in the frequency with which faculty provided formative assessments that included specific examples of performance and specific ways to improve, as well as increased frequency with which faculty provided summative assessments that included specific ways to improve. EPAs offered the most benefit in setting clear expectations for performance of each task, for providing more specific feedback to residents, and in increasing Program director's understanding of resident strengths abilities and weaknesses.

2.
Acad Pathol ; 8: 23742895211052885, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34722866

RESUMEN

From our initial screening of applications, we assess that the 10% to 15% of applicants whom we will interview are all academically qualified to complete our residency training program. This initial screening to select applicants to interview includes a personality assessment provided by the personal statement, Dean's letter, and letters of recommendation that, taken together, begin our evaluation of the applicant's cultural fit for our program. While the numerical scoring ranks applicants preinterview, the final ranking into best fit categories is determined solely on the interview day at a consensus conference by faculty and residents. We analyzed data of 819 applicants from 2005 to 2017. Most candidates were US medical graduates (62.5%) with 23.7% international medical graduates, 11.7% Doctors of Osteopathic Medicine (DO), and 2.1% Caribbean medical graduates. Given that personality assessment began with application review, there was excellent correlation between the preinterview composite score and the final categorical ranking in all 4 categories. For most comparisons, higher scores and categorical rankings were associated with applicants subsequently working in academia versus private practice. We found no problem in using our 3-step process employing virtual interviews during the COVID pandemic.

3.
Infect Agent Cancer ; 15: 45, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32676125

RESUMEN

BACKGROUND: Women living with human immunodeficiency virus (WLWH), especially those living in low- and middle-income countries (LMIC), are at increased risk of cervical cancer. The optimal cervical-cancer screening strategy for WLWH has not been determined. We therefore conducted a pilot study of screening methods in WLWH living in Limbe, Cameroon. METHODS: Five-hundred sixty-six WLWH, aged 25-59 years, were enrolled. After self-collecting a cervicovaginal specimen, they underwent a pelvic exam, during which a provider also collected a cervical specimen and visual inspection after acetic acid (VIA) was performed. Both self- and provider-collected specimens were tested for high-risk HPV by the Xpert HPV Test (Cepheid, Sunnyvale, CA, USA), with the residual of the latter used for liquid-based cytology. Women testing HPV positive on either specimen and/or VIA positive were referred to colposcopy and biopsies. However, because of poor attendence for follow-up colposcopy for the screen positives due to civil strife and technical issues with biopsies, high-grade cytology and/or clinical diagnosis of cancer was used as the primary high-grade cervical abnormality endpoint. Clinical performances for high-grade cervical abnormality of HPV testing and VIA for screening WLWH, and the most carcinogenic HPV genotypes and/or VIA to triage high-risk HPV-positive WLWH, were evaluated. RESULTS: Four-hundred eighty-seven (86.0%) WLWH had results for HPV testing on both specimen, VIA, and cytology and were included in the analysis. Forty-nine (10.1%) had a high-grade cervical abnormality. HPV testing on provider- and self-collected specimens was more sensitive than VIA (95.9 and 91.8% vs. 43.8%, respectively, p < 0.01 for both comparisons) for identifying women with high-grade cervical abnormalities. HPV testing on provider- and self-collected specimens was less specific than VIA (57.5 and 51.6% vs. 89.7%, respectively, p < 0.01 for both comparisons) for identifying women with high-grade cervical abnormalities; HPV testing on provider-collected specimens was more specific than on self-collected specimens (p < 0.01). Among HPV-positive women, HPV16/18/45 detection or VIA positivity had a sensitivity and positive predictive value of 73.5 and 29.0%, respectively, for provider-collected specimens and 68.8 and 22.9%, respectively, for self-collected specimens for high-grade cervical abnormalities. CONCLUSIONS: HPV testing was more sensitive but less specific than VIA for detection of high-grade cervical abnormality in WLWH. Improved triage methods for HPV-positive WLWH are needed. TRIAL REGISTRATION: NCT04401670 (clinicaltrials.gov); retrospectively registered on May 26, 2020.

4.
J Clin Virol ; 128: 104445, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32470891

RESUMEN

BACKGROUND: There are limited data on cervical HPV prevalence in Cameroon and none from its Anglophone region. We investigated cervical HPV prevalence in HIV-uninfected (HIV[-]) and HIV-infected (WLWH) women living in the region. METHODS: A convenience sample of consecutively recruited HIV[-] women (n = 295) and women living with HIV (WLWH) (n = 560) attending the Limbé Regional Hospital were enrolled into a cervical screening study. Women underwent screening that included HPV testing of self-collected and provider-collected specimens. We calculated the HPV prevalence by HIV status, overall and stratified by age, and among WLWH, stratified by CD4 counts. We compared the concordance for the detection of HPV between self- and provider-collected specimens. RESULTS: Crude HPV prevalence was 21.69 % (95 % confidence interval [95 %CI] = 17.21-26.48 %) for HIV[-] women and 46.43 % (95 %CI = 42.24-50.66 %) for WLWH (p < 0.001). Among WLWH, older age (ptrend = 0.01) and higher CD4 counts (ptrend = 0.007) were associated with lower HPV prevalence. There was a good-to-excellent agreement for HPV detection between specimens, and self-collected were more likely than provider-collected specimens to test HPV positive, for all women and stratified by HIV status. CONCLUSIONS: HIV-related immunosuppression was a risk factor for HPV prevalence in this population. HPV testing of self-collected specimens appeared to be less specific than HPV testing of provider-collected specimens.


Asunto(s)
Cuello del Útero/virología , ADN Viral/análisis , Infecciones por VIH/epidemiología , Infecciones por VIH/virología , Infecciones por Papillomavirus/epidemiología , Adulto , Factores de Edad , Recuento de Linfocito CD4 , Camerún/epidemiología , Detección Precoz del Cáncer , Femenino , Genotipo , Humanos , Huésped Inmunocomprometido , Tamizaje Masivo , Persona de Mediana Edad , Papillomaviridae , Infecciones por Papillomavirus/virología , Prevalencia , Factores de Riesgo , Neoplasias del Cuello Uterino/virología
5.
J Biomed Opt ; 19(3): 37004, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24671524

RESUMEN

Tissue vasculature is altered when cancer develops. Consequently, noninvasive methods of monitoring blood vessel size, density, and oxygenation would be valuable. Simple spectroscopy employing fiber optic probes to measure backscattering can potentially determine hemoglobin parameters. However, heterogeneity of blood distribution, the dependence of the tissue-volume-sampled on scattering and absorption, and the potential compression of tissue all hinder the accurate determination of hemoglobin parameters. We address each of these issues. A simple derivation of a correction factor for the absorption coefficient, µa, is presented. This correction factor depends not only on the vessel size, as others have shown, but also on the density of blood vessels. Monte Carlo simulations were used to determine the dependence of an effective pathlength of light through tissue which is parameterized as a ninth-order polynomial function of µa. The hemoglobin bands of backscattering spectra of cervical tissue are fit using these expressions to obtain effective blood vessel size and density, tissue hemoglobin concentration, and oxygenation. Hemoglobin concentration and vessel density were found to depend on the pressure applied during in vivo acquisition of the spectra. It is also shown that determined vessel size depends on the blood hemoglobin concentration used.


Asunto(s)
Vasos Sanguíneos , Hemoglobinas/química , Procesamiento de Señales Asistido por Computador , Análisis Espectral/métodos , Vasos Sanguíneos/anatomía & histología , Vasos Sanguíneos/fisiología , Cuello del Útero/irrigación sanguínea , Cuello del Útero/fisiopatología , Simulación por Computador , Femenino , Tecnología de Fibra Óptica , Humanos , Modelos Cardiovasculares , Método de Montecarlo , Neoplasias/fisiopatología
6.
Clin Cancer Res ; 16(11): 2999-3010, 2010 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-20404007

RESUMEN

PURPOSE: This study was undertaken to examine the role of the insulin-like growth factor (IGF) signaling pathway in the response of ovarian cancer cells to Taxol and to evaluate the significance of this pathway in human epithelial ovarian tumors. EXPERIMENTAL DESIGN: The effect of Taxol treatment on AKT activation in A2780 ovarian carcinoma cells was evaluated using antibodies specific for phospho-AKT. To study the drug-resistant phenotype, we developed a Taxol-resistant cell line, HEY-T30, derived from HEY ovarian carcinoma cells. IGF2 expression was measured by real-time PCR. A type 1 IGF receptor (IGF1R) inhibitor, NVP-AEW541, and IGF2 small interfering RNA were used to evaluate the effect of IGF pathway inhibition on proliferation and Taxol sensitivity. IGF2 protein expression was evaluated by immunohistochemistry in 115 epithelial ovarian tumors and analyzed in relation to clinical/pathologic factors using the chi(2) or Fisher's exact tests. The influence of IGF2 expression on survival was studied with Cox regression. RESULTS: Taxol-induced AKT phosphorylation required IGF1R tyrosine kinase activity and was associated with upregulation of IGF2. Resistant cells had higher IGF2 expression compared with sensitive cells, and IGF pathway inhibition restored sensitivity to Taxol. High IGF2 tumor expression correlated with advanced stage (P < 0.001) and tumor grade (P < 0.01) and reduced disease-free survival (P < 0.05). CONCLUSIONS: IGF2 modulates Taxol resistance, and tumor IGF2 expression is a candidate prognostic biomarker in epithelial ovarian tumors. IGF pathway inhibition sensitizes drug-resistant ovarian carcinoma cells to Taxol. Such novel findings suggest that IGF2 represents a therapeutic target in ovarian cancer, particularly in the setting of Taxol resistance.


Asunto(s)
Antineoplásicos Fitogénicos/uso terapéutico , Factor II del Crecimiento Similar a la Insulina/metabolismo , Neoplasias Ováricas/tratamiento farmacológico , Paclitaxel/uso terapéutico , Biomarcadores de Tumor/análisis , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia sin Enfermedad , Resistencia a Antineoplásicos , Femenino , Técnicas de Silenciamiento del Gen , Humanos , Factor II del Crecimiento Similar a la Insulina/análisis , Neoplasias Ováricas/metabolismo , Fosforilación , Pronóstico , Proteínas Proto-Oncogénicas c-akt/metabolismo , Pirimidinas/farmacología , Pirroles/farmacología , ARN Interferente Pequeño/farmacología , Receptor IGF Tipo 1/antagonistas & inhibidores , Transducción de Señal/efectos de los fármacos
7.
Gynecol Oncol ; 115(3): 472-5, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19712965

RESUMEN

BACKGROUND: Müllerian adenosarcoma is a rare mixed epithelial-mesenchymal tumor. An extragenital site of origin and sarcomatous overgrowth are associated with aggressive clinical behavior. CASE: We present a rare case of extragenital adenosarcoma with sarcomatous overgrowth and coexistent endometriosis. She was treated with initial cytoreductive surgery and chemotherapy. She underwent a second surgery for management of a high-grade bowel obstruction, due to pathologically confirmed recurrent intraperitoneal adenosarcoma. A complete clinical response was achieved with liposomal doxorubicin, and the patient remains disease-free eighteen months after completion of chemotherapy. CONCLUSION: Liposomal doxorubicin appears to be an active agent for the treatment of adenosarcoma with sarcomatous overgrowth. In addition, we conclude from our review of all reported cases of extragenital adenosarcoma that concurrent endometriosis may represent a favorable prognostic factor.


Asunto(s)
Adenosarcoma/tratamiento farmacológico , Adenosarcoma/cirugía , Neoplasias de los Genitales Femeninos/tratamiento farmacológico , Neoplasias de los Genitales Femeninos/cirugía , Adenosarcoma/patología , Adulto , Endometriosis/patología , Femenino , Neoplasias de los Genitales Femeninos/patología , Humanos
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