Publications by authors named "N H Nicolay"

Article Synopsis
  • The study evaluates the effectiveness of stereotactic body radiotherapy (SBRT) in improving survival outcomes for patients with oligometastatic head-and-neck squamous cell carcinoma (HNSCC) and pulmonary metastases across 16 international centers.
  • Out of 178 patients treated, the median overall survival was 33 months, while progression-free survival was 9 months, with low rates of local failure and minimal severe toxicity reported.
  • Factors influencing survival included age and sex, with older patients and females having worse outcomes, while a longer time between HNSCC diagnosis and SBRT treatment was linked to better survival rates.
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Purpose: Cumulative cisplatin doses of ≥ 200 mg/m improve survival in adults with head-and-neck squamous cell carcinoma (HNSCC) undergoing chemoradiation, but many older adults with HNSCC cannot receive this prognostically relevant dose due to toxicities. This study aims to develop predictive models to assess the likelihood of older adults with HNSCC receiving ≥ 200 mg/m cisplatin during chemoradiation.

Methods: 366 patients from the SENIOR database, an international cohort of adults ≥ 65 years with HNSCC, received definitive chemoradiation with single-agent cisplatin and were analyzed.

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CDKN2A/B deletions are prognostically relevant in low- and high-grade gliomas. Data on this is derived from heterogeneous series, an accurate estimation of survival risk from homozygous CDKN2A/B deletion is missing. Besides genetic testing, p16-immunohistochemistry (IHC) as a less cost intensive means for indirect detection of CDKN2A/B alterations is possible but not validated in larger datasets.

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Article Synopsis
  • This study analyzes how correcting the partial volume effect (PVE) in PET imaging improves the accuracy of measuring tumor hypoxia, specifically using FMISO PET images from head and neck cancer patients.
  • The researchers found that PVE correction increased the calculated hypoxic tumor volume (HTV) and provided better alignment of oxygen pressure measurements with established data.
  • They concluded that PVE correction is crucial for accurately quantifying tumor hypoxia, as it significantly impacts the assessment of treatment strategies and outcomes.
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