Biomedical subjects

John-Helge Heimdal

Publications and source records attributed to John-Helge Heimdal.

6 recordsLinked to original sources

PubMed2006

Continuous laryngoscopy exercise test: a method for visualizing laryngeal dysfunction during exercise.

OBJECTIVES/HYPOTHESIS: To assess the diagnostic feasibility and patient acceptance of a new developed diagnostic test for exercise induced upper airway flow limitation. STUDY DESIGN: Clinical case control study including evaluation of contemporary ergo-spirometry and laryngoscopy continuously performed during exercise. METHODS: Twelve nonsymptomatic controls and four young females with documented dyspnea and noisy breathing during exercise were studied. All subjects exercised to exhaustion on a treadmill while attached to a fully equipped ergo-spirometry unit and a fiberoptic laryngoscope linked to a video camera and a sound recorder. RESULTS: The test situation was well tolerated. Two control subjects had a minor inspiratory synchronous medial motion of the aryepiglottic folds without limitation of laryngeal airflow. In the four symptomatic subjects, exercise induced inspiratory synchronous medial motion of the dorsal part of the aryepiglottic folds as well as vocal cord adduction and inspiratory stridor was demonstrated. CONCLUSION: The continuous laryngoscopy exercise test was easy to perform, well tolerated, and can be implemented in future diagnostic work-up programs of laryngeal dysfunction.

Adolescent↗

PubMed2005

Viable head and neck tumor spheroids stimulate in vitro autologous monocyte MCP-1 secretion through soluble substances and CD14/lectin-like receptors.

Biopsies from carcinoma tissue and benign control mucosa from head and neck squamous cell carcinoma (HNSCC) patients were used to establish fragment (F)-spheroids in vitro. We have previously shown that autologous monocytes co-cultured with F-spheroids in vitro augment their secretion of monocyte chemotactic protein-1 (MCP-1). Presently, the aims of the present work were to study whether the metabolic activity, secreted products and/or specific receptor/ligand on the surface of the F-spheroids and monocytes are necessary for stimulation of the monocyte MCP-1 secretion upon F-spheroid co-culture. Actinomycin D (1 mug/ml for 24 h) pre-treatment of the F-spheroids abolished the monocyte MCP-1 co-culture response. Co-culture of monocytes and F-spheroids separated by a semi-permeable membrane showed a decreased, but still present, monocyte MCP-1 co-culture response. Conditioned medium from F-spheroids stimulated allogenous monocytes to secrete MCP-1. The addition of glucose or galactose, but not mannose, to co-cultures partially inhibited the monocyte MCP-1 co-culture response. The addition of anti-CD14 antibody diminished the MCP-1 co-culture response. In conclusion, the monocyte MCP-1 co-culture response is dependent on metabolically active spheroids, secreted stimuli, and is augmented by direct contact with F-spheroids, possibly via lectin-like receptors and the CD14 receptor.

Autoantibodies↗

PubMed2005

[A four-year-old boy with swollen cheek after a fall].

A four-year-old boy had fallen from a tree in nursery school and had minor symptoms immediately after the trauma. He was admitted to the local casualty clinic the same night, but no signs of local injury were detected. The next morning he was admitted to the department of oto-rhino-laryngology at the local hospital due to increasing local swelling and pain in the cheek. A computed tomography examination demonstrated an extensive preauricular soft tissue swelling and a long central hypodensity from the left ear to the oropharynx. The presence of a penetrating foreign body was suspected and the boy was admitted to our hospital. An examination in general anaesthesia revealed a small skin lesion medial to the tragus in the left external auditory meatus and a wooden stick was seen crossing the oropharynx. The eight and a half centimetre long wooden stick had penetrated from the cartilaginous part of the left external auditory meatus to the right palatal tonsil. It was removed through a pre-auricular incision. No complications were observed and the boy could leave the hospital after four days of observation with antibiotic therapy and tetanus prophylaxis.

Accidental Falls↗

PubMed2005

Mood, anxiety and sense of humor in head and neck cancer patients in relation to disease stage, prognosis and quality of life.

CONCLUSION: At diagnosis, control patients had the lowest depression levels and anxiety scores, followed by those with limited HNSCC disease and these with extended HNSCC disease. Anxiety and depression levels at diagnosis predicted prognosis via an association with extent of disease. Sense of humor, but not anxiety or depression level, predicted lower QoL and depression levels at follow-up. OBJECTIVE: To study the association between anxiety score, depression level at sense of humor at diagnosis in head and neck squamous cell carcinoma (HNSCC) patients versus TNM stage, prognosis and depression level/quality of life (QOL) 6 years following diagnosis. A control group of patients with benign HN disease was also included. MATERIAL AND METHODS: Male patients with newly diagnosed HNSCC (n =78) or benign HN (n =61) disease completed the following questionnaires: the Beck Depression Inventory, the Spielberger Trait Anxiety Inventory (state) and the Svebak humor questionnaire. Patients with cachexia or those aged >80 years were excluded. In the HNSCC patients, TNM stage, prognosis and QOL/depression level (n =27) were determined following successful therapy. RESULTS: HNSCC patients reported high anxiety scores and lower depression levels than control patients, although there was overlap between the groups. N stage was associated with high anxiety scores and depression levels, whereas T stage was only associated with depression levels. Both anxiety scores and depression levels at diagnosis predicted prognosis through an association with TNM stage. Sense of humor, but not depression levels or anxiety scores, at diagnosis predicted QoL and depression levels at follow-up.

Affect↗

PubMed2005

Head and neck squamous cell carcinoma spheroid- and monocyte spheroid-stimulated IL-6 and monocyte chemotactic protein-1 secretion are related to TNM stage, inflammatory state and tumor macrophage density.

Monocyte fragment (F)-spheroid-stimulated and F-spheroid IL-6 and monocyte chemotactic protein (MCP)-1 secretion are related to inflammatory state, macrophage density and the TNM stage of patients with head and neck squamous cell carcinoma (HNSCC). Fragment (F)-spheroids from HNSCC patients in vitro secrete and stimulate autologous monocytes to secrete IL-6 and MCP-1. The aim of this investigation was to study this cytokine secretion in relation to other cytokines, spheroid composition and host factors.In series I (n=14) the densities of epithelial cells, fibroblasts and macrophages were determined in sections from F-spheroids and donor tissue. In series II (n=17) the TNM stage, donor inflammatory state, macrophage density and the secretion of F-spheroid- and monocyte F-spheroid-stimulated IL-6, MCP-1 and tumor necrosis factor (TNF)-alpha were determined. Epithelial cells were partly replaced by interstitial tissue during spheroid formation. Malignant (M) F-spheroids secreted more MCP-1 than benign (B) F-spheroids. No F-spheroid secreted measurable amounts of TNF-alpha. Monocytes secreted more IL-6 when co-cultured with MF- compared to BF-spheroids. Monocyte IL-6 MF- and MCP-1 MB-spheroid-stimulated secretion correlated with macrophage density. In addition, there was an association between MF- and BF-spheroid-stimulated monocyte cytokine secretion, as well as between BF- and MF-spheroid-stimulated MCP-1 secretion. An inverse relation was also noted between the erythrocyte sedimentation rate at monocyte harvest and the monocyte MCP-1 F-spheroid responses.

Blood Sedimentation↗

PubMed2002

Personality traits in head and neck squamous cell carcinoma patients in relation to the disease state, disease extent and prognosis.

OBJECTIVE: We aimed to study whether personality scores, as measured using the Eysenck Personality Inventory (EPI), are associated with the risk and prognosis of head and neck squamous cell carcinoma (HNSCC). MATERIAL AND METHODS: A total of 78 male patients with newly diagnosed HNSCC and 61 male patients with benign HN disease completed the EPI, which assesses the following: neuroticism, extraversion and lie score. The TNM stage, prognosis, diagnostic delay, level of education and smoking and alcohol consumption histories of the patients were also recorded. Patients with cachexia and those aged > 80 years were excluded. RESULTS: The cancer patients had higher neuroticism scores (10.7 +/- 0.5 vs 8.3 +/- 0.6; p < 0.01) than the control patients. This association was shown to be secondary to the fact that neuroticism is associated with increased alcohol consumption. The personality trait scores were not associated with the length of diagnostic delay. It was also suggested that a low lie score predicted disease-specific death in the HNSCC patients (p = 0.02). Total survival also seemed to be predictable (p < 0.05). CONCLUSION: Neuroticism is probably associated with a risk of HNSCC as a result of increased alcohol consumption. If the prognostic results can be replicated, a potentially important association between this personality trait and the prognosis of HNSCC is suggested.

Carcinoma, Squamous Cell↗