Publications by authors named "Jos Straetmans"

Background: The prognostic reliability of the UICC's TNM classification (8th edition) for human papillomavirus (HPV)-positive tonsillar squamous cell carcinomas (TSCCs) compared to the 7th edition was explored, and its improvement by using additional anatomical and nonanatomical parameters.

Methods: One hundred and ten HPV-positive and 225 HPV-negative TSCCs were retrospectively analyzed. Survival was correlated with patient and tumor characteristics (7th and 8th edition UICC TNM classification).

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Purpose: Debate on the extent of treatment of neck metastasis of cancer of unknown primary tumors (CUPs) is still ongoing. In two Dutch tertiary referral centers, the post-surgical radiation target volume changed from the bilateral neck including the pharyngeal axis to the unilateral neck only, in the course of the last decade. This study aims to investigate the outcome of patients with CUP before and after de-escalation of post-surgical radiotherapy.

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The landscape of HPV infection in racial/ethnic subgroups of head and neck cancer (HNC) patients has not been evaluated carefully. In this study, a meta-analysis examined the prevalence of HPV in HNC patients of African ancestry. Additionally, a pooled analysis of subject-level data was also performed to investigate HPV prevalence and patterns of p16 (CDNK2A) expression amongst different racial groups.

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Anterior neck masses in young children can be a diagnostic challenge for otolaryngologists and radiologists. We present a rare case of herniation of normal mediastinal thymus in a four-year-old girl. Additional medical features as an inguinal hernia and trochlear nerve paresis raised the question whether there is a causal relationship or an association.

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Purpose: Due to the established role of the human papillomavirus (HPV), the optimal treatment for oropharyngeal carcinoma is currently under debate. We evaluated the most important determinants of treatment outcome to develop a multifactorial predictive model that could provide individualized predictions of treatment outcome in oropharyngeal carcinoma patients.

Methods: We analyzed the association between clinico-pathological factors and overall and progression-free survival in 168 OPSCC patients treated with curative radiotherapy or concurrent chemo-radiation.

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Combined analysis of diagnostic and therapeutic management of neck metastases of carcinoma of unknown primary origin ('true CUP') in two European tertiary referral centers (University Medical Centers of Maastricht, NL and Cologne, D) to contribute to the ongoing discussion on management in CUP. Retrospective analysis of 29 (Maastricht) and 22 (Cologne) true cervical CUP syndrome patients (squamous cell carcinoma). The diagnostic and therapeutic approaches were correlated with clinical follow-up data and HPV status.

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Human papillomavirus (HPV) is a risk factor for the development of benign and malignant mucosal head and neck lesions. P16(INK4A) is often used as a surrogate marker for HPV-infection, although there is still controversy with respect its reliability. Our aim was to determine if p16(INK4A) overexpression can accurately predict both high-risk and low-risk-HPV-presence in (pre)malignant and benign head and neck lesions.

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Oncogenic human papillomavirus (HPV) is currently recognised as a major risk factor for the development of head and neck squamous cell carcinomas (HNSCC). HPV is mostly detected in tumours arising from the oropharynx and more specifically from the tonsil. HPV-related tumours display clinical and molecular characteristics that are distinct from HPV-unrelated tumours, which are generally induced by alcohol and tobacco abuse.

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Objectives/hypothesis: Percutaneous tracheotomy is progressively replacing open tracheotomy as a consequence of promising results of comparative studies. However, this comparison has four considerable weaknesses: 1) selected indications (high-risk patients excluded for percutaneous tracheotomy); 2) varying spectra of complications included in different studies; 3) varying operative settings (experienced surgeons exclusively, surgeons in training, or both); and 4) missing differentiation between different surgical techniques. Our study was performed to collect complete datasets of unselected patients who all underwent a tracheotomy in a uniform technique in an academic teaching hospital setting.

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Objectives/hypothesis: Assessment of the prognostic value of nodal status in relation to human papillomavirus (HPV) status and the various treatment modalities in tonsillar squamous cell carcinomas (TSCC).

Study Design: Retrospective 5-year survival analysis.

Methods: A 5-year follow-up of disease-free, disease-specific, and overall survival in a group of 81 patients with TSCC was conducted.

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Purpose: Patients with human papillomavirus (HPV)-containing oropharyngeal squamous cell carcinomas (OSCC) have a better prognosis than patients with HPV-negative OSCC. This may be attributed to different genetic pathways promoting cancer.

Experimental Design: We used comparative genomic hybridization to identify critical genetic changes in 60 selected OSCC, 28 of which were associated with HPV-16 as determined by HPV-specific PCR and fluorescence in situ hybridization analysis and positive p16(INK4A) immunostaining.

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Extramedullary plasmacytoma (EMP) arises outside the bone marrow, particularly in the head and neck region (nasopharynx, nose cavity, sinuses, and tonsils), and can be associated with multiple myeloma (MM). Three cases of EMP in the head and neck region are described: a first case describes an EMP of the subglottis 3 years after treatment of MM, a second case of an EMP solitary in the middle ear presenting as a jugular foramen syndrome, and a third case of an EMP localised at the epiglottis, recurring at the floor of the nose cavity. Treatment of each EMP was surgical.

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Erythema nodosum is the most common form of septal panniculitis and the most frequent skin manifestation associated with inflammatory bowel disease. Since the development of erythema nodosum is closely related with a variety of disorders and conditions, it can serve as an important early sign of systemic disease. We report on a 25-year-old woman with Crohn's disease following a long history of recurrent erythema nodosum.

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This study aimed to analyse the health problems and prescriptions of people with intellectual disabilities registered with GPs. Within the Second Dutch National Survey of General Practice evidence was gathered on the differences in health problems between people with intellectual disabilities and control persons (without intellectual disabilities). In a 1:5 matched sample, people with intellectual disabilities paid 1.

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