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1.
World J Surg ; 46(10): 2476-2486, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35835863

RESUMO

BACKGROUND: In Ukraine, there is no established colorectal cancer screening program. We aimed to project the number of screening colonoscopies needed for implementation of various CRC screening strategies in Ukraine. METHODS: We modified a previously developed Markov microsimulation model to reflect the natural history of adenoma and CRC progression among average-risk 50-74-year-olds. We simulated colonoscopies needed for the following screening strategies: no screening, fecal occult blood test yearly, FOBT yearly with flexible sigmoidoscopy every 5 years, FS every 5 years, fecal immunohistochemistry test (FIT) yearly, or colonoscopy every 10 years. Assuming 80% screening adherence, we estimated colonoscopies required at 1 and 5 years depending on the implementation rate. In one-way sensitivity analyses, we varied implementation rate, screening adherence, sensitivity, and specificity. RESULTS: Assuming an 80% screening adherence and complete implementation (100%), besides a no screening strategy, the fewest screening colonoscopies are needed with an FOBT program, requiring on average 6,600 and 26,800 colonoscopies per 100,000 persons at 1 and 5 years post-implementation, respectively. The most screening colonoscopies are required with a colonoscopy program, requiring on average 76,600 and 101,000 colonoscopies per 100,000 persons at 1 and 5 years post-implementation, respectively. In sensitivity analyses, the biggest driver of number of colonoscopies needed was screening adherence. CONCLUSIONS: The number of colonoscopies needed and therefore the potential strain on the healthcare system vary substantially by screening test. These findings can provide valuable information for stakeholders on equipment needs when implementing a national screening program in Ukraine.


Assuntos
Neoplasias Colorretais , Detecção Precoce de Câncer , Colonoscopia , Neoplasias Colorretais/diagnóstico , Humanos , Programas de Rastreamento , Sangue Oculto , Ucrânia
2.
JCO Glob Oncol ; 10: e2400053, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39088781

RESUMO

PURPOSE: This study aims to identify the factors influencing colorectal cancer (CRC) screening practices, along with the barriers and facilitators from the perspective of primary care physicians (PCPs) in Ukraine. Considering health care system challenges, including those posed by the ongoing war, this research seeks to inform improvements in CRC screening and outcomes in Ukraine and other low- and middle-income countries (LMICs). METHODS: A survey was designed and distributed electronically to Ukrainian PCPs, focusing on CRC screening practices, beliefs, and barriers. The survey incorporated questions adapted from established cancer screening surveys and frameworks. Complete responses were collected from 740 PCPs. Sample statistics were computed, and population-level perceptions and associations with CRC screening practices were estimated by standardizing responses to national PCP demographics. RESULTS: The majority of respondents were women (91%) and specialized in family medicine (84%). Respondents believed in the effectiveness of colonoscopy for reducing CRC mortality (80%), with 75% of PCPs referring patients for this screening modality. Major barriers identified include inadequate training of PCPs in screening and lack of resources. Respondents reported high utilization of fecal occult blood test and colonoscopy for screening when these tests were said to be available in their practices. Self-reported familiarity with CRC screening guidelines and participation in educational workshops were positively associated with screening referrals. CONCLUSION: The study highlights the role of access to CRC screening tests and awareness of screening guidelines in enhancing CRC screening practices among Ukrainian PCPs. Addressing training and resource barriers, alongside public health interventions targeting patient-related barriers, is essential. These findings offer valuable insights for LMICs facing similar challenges, emphasizing the need for tailored strategies to improve cancer screening in these health care settings.


Assuntos
Neoplasias Colorretais , Detecção Precoce de Câncer , Médicos de Atenção Primária , Humanos , Neoplasias Colorretais/diagnóstico , Ucrânia , Feminino , Masculino , Detecção Precoce de Câncer/estatística & dados numéricos , Detecção Precoce de Câncer/métodos , Médicos de Atenção Primária/estatística & dados numéricos , Pessoa de Meia-Idade , Padrões de Prática Médica/estatística & dados numéricos , Inquéritos e Questionários , Adulto , Sangue Oculto , Colonoscopia/estatística & dados numéricos , Programas de Rastreamento/estatística & dados numéricos , Atenção Primária à Saúde/estatística & dados numéricos
3.
Arch Pathol Lab Med ; 130(2): 198-200, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16454562

RESUMO

Radiation-associated sarcoma is a rare but potential complication of radiation therapy. Most reported cases of osteosarcoma of the chest wall following radiation therapy for breast cancer arise from the chest wall skeletal structures. In contrast, few cases of extraskeletal osteosarcomas have been reported. We report a rare example of an extraskeletal osteosarcoma involving the pectoralis major muscle occurring after radiation therapy for breast cancer. Extraskeletal osteosarcomas are rare soft tissue tumors with a high rate of local recurrence and a poor prognosis.


Assuntos
Neoplasias Musculares/patologia , Neoplasias Induzidas por Radiação/patologia , Segunda Neoplasia Primária/patologia , Osteossarcoma/patologia , Músculos Peitorais/patologia , Biomarcadores Tumorais/análise , Neoplasias da Mama/patologia , Neoplasias da Mama/radioterapia , Carcinoma Intraductal não Infiltrante/patologia , Carcinoma Intraductal não Infiltrante/radioterapia , Intervalo Livre de Doença , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Neoplasias Musculares/etiologia , Neoplasias Musculares/cirurgia , Segunda Neoplasia Primária/etiologia , Osteossarcoma/etiologia , Osteossarcoma/cirurgia
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