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1.
Artículo en Inglés | MEDLINE | ID: mdl-39194285

RESUMEN

BACKGROUND: Vulvar lichen sclerosus (VLS) is a chronic inflammatory skin condition associated with significant impairment of quality of life and potential risk of malignant transformation. However, diagnosis of VLS is often delayed due to its variable clinical presentation and shame-related late consultation. Machine learning (ML)-trained image recognition software could potentially facilitate early diagnosis of VLS. OBJECTIVE: To develop a ML-trained image-based model for the detection of VLS. METHODS: Images of both VLS and non-VLS anogenital skin were collected, anonymized, and selected. In the VLS images, 10 typical skin signs (whitening, hyperkeratosis, purpura/ecchymosis, erosion/ulcers/excoriation, erythema, labial fusion, narrowing of the introitus, labia minora resorption, posterior commissure (fourchette) band formation and atrophic shiny skin) were manually labelled. A deep convolutional neural network was built using the training set as input data and then evaluated using the test set, where the developed algorithm was run three times and the results were then averaged. RESULTS: A total of 684 VLS images and 403 non-VLS images (70% healthy vulva and 30% with other vulvar diseases) were included after the selection process. A deep learning algorithm was developed by training on 775 images (469 VLS and 306 non-VLS) and testing on 312 images (215 VLS and 97 non-VLS). This algorithm performed accurately in discriminating between VLS and non-VLS cases (including healthy individuals and non-VLS dermatoses), with mean values of 0.94, 0.99 and 0.95 for recall, precision and accuracy, respectively. CONCLUSION: This pilot project demonstrated that our image-based deep learning model can effectively discriminate between VLS and non-VLS skin, representing a promising tool for future use by clinicians and possibly patients. However, prospective studies are needed to validate the applicability and accuracy of our model in a real-world setting.

2.
Int J Gynecol Cancer ; 33(12): 1934-1942, 2023 12 04.
Artículo en Inglés | MEDLINE | ID: mdl-38052472

RESUMEN

BACKGROUND: Delivering bad news to patients is one of the most challenging tasks in medical practice. Despite its great relevance to patients, relatives, and medical staff, there is a paucity of data pertaining to training, experience, expectations, and preferences of physicians and medical students on breaking bad news. METHODS: We conducted an international survey in Germany, Switzerland, and Austria using an online questionnaire among physicians and medical students. RESULTS: A total of 786 physicians and 303 medical students completed the survey. Physicians stated that 32.7% deliver bad news several times a week and 45.2% several times a month. Difficulties controlling their emotions (35.1%) and remaining professional (43.4%) were the greatest challenges for physicians. Delivering bad news is associated with feelings of anxiety, both among experienced physicians (median of 3.8 out of 10.0) and medical students (median of 5.3). Conveying bad news is a burden to physicians and consequently has a substantial impact on their job satisfaction. All participants reported the need for more communication training concerning this subject. Only 49.5% of medical students and 67.3% of physicians mentioned having learned adequate communication skills. Our data demonstrate that communication training decreases the level of anxiety and increases the feeling of self-confidence towards breaking bad news. Preferred educational tools were seminars with simulation (students: 71.4%, physicians: 49.5%), observing more senior faculty (students: 57.4%, physicians: 55.1%), and supervision and feedback sessions (students: 36.3%, physicians: 45.7%). The largest barriers regarding education on communication were limited time (students: 77.0%, physicians: 74.9%) and missing awareness of supervisors (students: 60.6%, physicians: 41.1%). CONCLUSIONS: Our study showed a great need for systematic training and education in breaking bad news among physicians and medical students. Hospitals, medical schools, and postgraduate training programs are strongly encouraged to fill this gap, and improve sustainable doctor-patient communication to overcome the psychological burden for physicians.


Asunto(s)
Médicos , Estudiantes de Medicina , Humanos , Revelación de la Verdad , Estudiantes de Medicina/psicología , Relaciones Médico-Paciente , Encuestas y Cuestionarios , Comunicación
3.
Int J Gynecol Cancer ; 33(2): 293-298, 2023 02 06.
Artículo en Inglés | MEDLINE | ID: mdl-36717163

RESUMEN

BACKGROUND: Positron emission tomography/computed tomography (PET/CT) fails to detect approximately 25% of aortic lymph node metastasis in patients with PET/CT stage IIIC1 cervical cancer. Surgical staging could lead to treatment modification and to improved para-aortic and distant control. PRIMARY OBJECTIVES: To demonstrate if chemoradiation with tailored external beam radiation field based on surgical staging and pathologic examination of the para-aortic lymph node is associated with improved 3-year disease-free survival compared with patients staged with PET/CT staging only. STUDY HYPOTHESIS: Surgical staging followed by tailored chemoradiation will improve disease-free survival while avoiding unnecessary prophylactic extended-field chemoradiation in patients with International Federation of Gynecology and Obstetrics (FIGO) stage IIIC1 cervical cancer. TRIAL DESIGN: This is an international multicenter, randomized, phase III study. Eligible patients will be randomized 1:1 between PET/CT staging followed by chemoradiation (control arm), or surgical staging followed by tailored chemo-radiation (experimental arm). Randomization will be stratified by tumor stage according to TNM classification, center, and adjuvant treatment. MAJOR INCLUSION/EXCLUSION CRITERIA: Main inclusion criteria are histologically proven PET/CT FIGO stage IIIC1 cervical cancer. Main exclusion criteria include unequivocal positive common iliac or para-aortic lymph node at pre-therapeutic imaging PET/CT. PRIMARY ENDPOINTS: The primary endpoint is disease-free survival defined as the time from randomization until first relapse (local, regional, or distant), or death from any cause. SAMPLE SIZE: 510 eligible patients ESTIMATED DATES FOR COMPLETING ACCRUAL AND PRESENTING RESULTS: The estimated date for completing accrual will be Q2 2027. The estimated date for presenting results will be Q4 2030. TRIAL REGISTRATION NUMBER: NCT05581121.


Asunto(s)
Tomografía Computarizada por Tomografía de Emisión de Positrones , Neoplasias del Cuello Uterino , Femenino , Humanos , Neoplasias del Cuello Uterino/cirugía , Neoplasias del Cuello Uterino/patología , Metástasis Linfática/patología , Recurrencia Local de Neoplasia/patología , Escisión del Ganglio Linfático/métodos , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología , Estadificación de Neoplasias , Estudios Retrospectivos
4.
BMJ Open ; 12(9): e057381, 2022 09 26.
Artículo en Inglés | MEDLINE | ID: mdl-36167367

RESUMEN

INTRODUCTION: Radical abdominal surgery is part of the standard treatment for women with advanced gynaecological carcinoma. The surgery often leads to intraoperative blood loss frequently exceeding 1000 mL. Approximately 50% of women undergoing radical surgery require blood transfusions. Perioperative blood transfusions have been shown to increase the risk of postoperative complications, delayed wound healing, increased length of stay, increased postoperative morbidity and mortality. Previous studies have demonstrated an association between perioperative anaemia and surgical morbidity and mortality. By reducing transfusions and improving recovery from surgery, preoperative diagnostic and management of perioperative anaemia is a great opportunity to optimise postoperative patient outcome. METHODS AND ANALYSIS: This is a single-blind, monocentre, randomised trial with four parallel groups (three therapeutic groups and one control group without treatment according to current standards of care) conducted in women undergoing radical gynaecological surgery. The primary study objective is to determine the effect of perioperative treatment with either intravenous iron, tranexamic acid or with a combination of both medicines on the reduction of intraoperative and postoperative red blood cell transfusions in gynaecological carcinoma patients. A total of N=126 women with gynaecological carcinoma will be recruited at the University Hospital Basel, Department of Gynaecology. Blood parameters will be measured at the recruitment, prior to surgery, 2 days after surgery and on the 21st-28th day after surgery. Recruitment started in August 2021. ETHICS AND DISSEMINATION: The study will be performed according to the guidelines of the Declaration of Helsinki and is approved by the Ethics Committee for Northwest and Central Switzerland in Basel (EKNZ Protocol ID 2020-01194). The results of this study will be published and presented in various scientific forums. TRIAL REGISTRATION NUMBER: NCT03792464.


Asunto(s)
Anemia , Carcinoma , Ácido Tranexámico , Anemia/tratamiento farmacológico , Transfusión Sanguínea , Femenino , Compuestos Férricos , Procedimientos Quirúrgicos Ginecológicos , Humanos , Hierro/uso terapéutico , Maltosa/análogos & derivados , Ensayos Clínicos Controlados Aleatorios como Asunto , Método Simple Ciego , Ácido Tranexámico/uso terapéutico
5.
J Med Genet ; 59(9): 924-930, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-34782441

RESUMEN

BACKGROUND: We estimated the cost-effectiveness of universal DNA screening for Lynch syndrome (LS) among newly diagnosed patients with colorectal cancer (CRC) followed by cascade screening of relatives from the Swiss healthcare system perspective. METHODS: We integrated decision trees with Markov models to calculate incremental cost per quality-adjusted life-year saved by screening all patients with CRC (alternative strategy) compared with CRC tumour-based testing followed by DNA sequencing (current strategy). RESULTS: The alternative strategy has an incremental cost-effectiveness ratio of CHF65 058 compared with the current strategy, which is cost-effective according to Swiss standards. Based on annual incidence of CRC in Switzerland, universal DNA screening correctly identifies all 123 patients with CRC with LS, prevents 17 LS deaths and avoids 19 CRC cases, while the current strategy leads to 32 false negative results and 253 LS cases lost to follow-up. One way and probabilistic sensitivity analyses showed that universal DNA testing is cost-effective in around 80% of scenarios, and that the cost of DNA testing and the number of invited relatives per LS case determine the cost-effectiveness ratio. CONCLUSION: Results can inform policymakers, healthcare providers and insurance companies about the costs and benefits associated with universal screening for LS and cascade genetic testing of relatives.


Asunto(s)
Neoplasias Colorrectales Hereditarias sin Poliposis , Neoplasias Colorrectales , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/epidemiología , Neoplasias Colorrectales/genética , Neoplasias Colorrectales Hereditarias sin Poliposis/diagnóstico , Neoplasias Colorrectales Hereditarias sin Poliposis/epidemiología , Neoplasias Colorrectales Hereditarias sin Poliposis/genética , Análisis Costo-Beneficio , Detección Precoz del Cáncer , Pruebas Genéticas/métodos , Humanos , Suiza/epidemiología
6.
Front Oncol ; 11: 644608, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33747968

RESUMEN

Reprogramming tumor infiltrating myeloid cells to elicit pro-inflammatory responses is an exciting therapeutic maneouver to improve anti-tumor responses. We recently demonstrated that a distinct microtubule-targeting drug, plinabulin-a clinical-stage novel agent-modulates dendritic cell maturation and enhances anti-tumor immunity. Here, we investigated the effects of plinabulin on macrophage polarization in vitro and in vivo. Plinabulin monotherapy induced significant tumor growth inhibition in mice bearing subcutaneous MC38 colon cancer. Importantly, the regressing tumors were characterized by an increase in M1-like/M2-like tumor-associated macrophages (TAM) ratio. The efficacy of plinabulin remained unaltered in T cell-deficient Rag2-/- mice, suggesting an important role of macrophages in driving the drug's anti-tumor effect. Exposure of murine and healthy human macrophages to plinabulin induced polarization toward the M1 phenotype, including increased expression of co-stimulatory molecules CD80, CD86 and pro-inflammatory cytokines IL-1ß, IL-6, and IL-12. M2-associated immunosuppressive cytokines IL-10 and IL-4 were reduced. This pro-inflammatory M1-like skewing of TAMs in response to plinabulin was dependent on the JNK pathway. Functionally, plinabulin-polarized human M1 macrophages directly killed HuT 78 tumor cells in vitro. Importantly, plinabulin induced a functional M1-like polarization of tumor infiltrating macrophages in murine tumors as well as in tumor samples from ovarian cancer patients, by preferentially triggering M1 proliferation. Our study uncovers a novel immunomodulatory effect of plinabulin in directly triggering M1 polarization and proliferation as well as promoting TAM anti-tumoral effector functions.

7.
Case Rep Oncol Med ; 2013: 412368, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24066248

RESUMEN

Breast masses have a variety of benign and malignant etiologies. We present the case of a 28-year-old woman with bilateral large painful breast masses that developed rapidly in the three weeks before first presentation. Further investigation revealed bilateral ovarian masses. Biopsies of both ovarian masses were taken, and the pathology reported Burkitt's lymphoma. Additional staging with a PET scan was suggestive of bone marrow involvement, but bone marrow biopsy was negative. Examination of the cerebrospinal fluid did not identify malignant cells. The patient underwent CODOX-M/IVAC chemotherapy, and a complete response was demonstrated after one cycle of treatment. Six months after finishing chemotherapy the patient remained in complete remission. To our knowledge this is the first case reporting simultaneous involvement of breast, ovaries, and bones in Burkitt's lymphoma. Gynecologists and oncologists should be aware of this pattern. Polychemotherapy treatment must be initiated rapidly with curative intent.

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