Publications by authors named "P O Chappuis"

Purpose: Breast cancer (BC) in women under 45 is rare yet often aggressive. We aim to analyze loco-regional recurrences (LR), distant recurrences (DR), second breast cancers, and mortality in young BC patients.

Methods: We enrolled 776 women with non-metastatic BC ≤45 years diagnosed from 1970 to 2012.

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The study adapted the Family Gene Toolkit and developed a customized web application for Swiss and Korean families harboring or pathogenic variants to support family communication of genetic testing results and promote cascade genetic testing among at-risk relatives. In the first step, narrative data from 68 women with / pathogenic variants and clinician feedback informed a culturally sensitive adaptation of the content consistent with current risk management guidelines. In the second step, the Information Technology team developed the functions and the interface of the web application that will host the intervention.

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BRCA1 and BRCA2 play a central role in DNA repair and their germline pathogenic variants (gBRCA) confer a high risk for developing breast and ovarian cancer. Standard chemotherapy regimens for these cancers include DNA-damaging agents. We hypothesized that gBRCA carriers might be at higher risk of developing chemotherapy-related hematologic toxicity and therapy-related myeloid neoplasms (t-MN).

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Background: Carriers of germline pathogenic variants of the BRCA1 gene (gBRCA1) tend to have a higher incidence of haematological toxicity upon exposure to chemotherapy. We hypothesised that the occurrence of agranulocytosis during the first cycle of (neo-)adjuvant chemotherapy (C1) in breast cancer (BC) patients could predict gBRCA1 pathogenic variants.

Patients And Methods: The study population included non-metastatic BC patients selected for genetic counselling at Hôpitaux Universitaires de Genève (Jan.

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Dermatologic and rheumatologic toxicities are frequent adverse events during treatment with immune checkpoint inhibitors in oncology. Timely identification of these events and the referral to the oncologist or dermatologist are important in daily practice, such an organ damage involvements can be severe and sometimes life-threatening. The diagnosis and management of cutaneous toxicities, such as maculopapular rash and bullous dermatitis in particular, must be based on the body surface affected by skin lesions.

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