Search for dissertations about: "paranasal sinus"

Showing result 1 - 5 of 9 swedish dissertations containing the words paranasal sinus.

  2. 1. Ventilation of the Paranasal Sinuses. A study using the 133-Xenon Washout Technique

    Author : Bo Paulsson; Lund Institutionen för kliniska vetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; auditive system and speech; single photon emission computed tomography; paranasal sinuses; ventilation; 133-xenon; chronic sinusitis; nose-sinus model; endoscopic sinus surgery; oxymetazoline; Otorhinolaryngology; Otorinolaryngologi; audiologi; hörsel- och talorganen; audiology;

    Abstract : A noninvasive 133-xenon washout technique was used to evaluate the ventilation of the paranasal sinuses in healthy subjects and in patients with sinus disease. A mixture of air and 133-xenon is insufflated into the nasal cavities and passage into the sinuses is facilitated by a pressure increase created by letting the subjects inflate a balloon. READ MORE

  4. 2. Humming, nitric oxide and paranasal sinus ventilation

    Author : Mauro Maniscalco; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The paranasal sinuses are air-filled bony cavities surrounding the nose. They communicate with the nose via the sinus ostia through which fluid and gases pass in both directions. A proper ventilation is crucial for sinus integrity and blockage of the ostia is a major risk factor for development of sinusitis. READ MORE

  5. 3. Distribution and Effects of NO and CO in the Human Upper Respiratory Tract

    Author : Jens Andersson; Helsingborg Kliniska Vetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mykologi; virologi; bakteriologi; Mikrobiologi; mycology; transplantation; Microbiology; bacteriology; virology; serologi; Immunologi; serology; Otorhinolaryngology; audiology; auditive system and speech; Otorinolaryngologi; audiologi; hörsel- och talorganen; Immunology; sinus; upper respiratory tract infection; nose; nitric oxide; neutrophil migration; middle ear; hemin; flow cytometry; allergy; carbon monoxide;

    Abstract : Mucosal inflammation and airway hyperreactivity are regulated by hundreds of different mediators. The recent discovery of gaseous mediators, produced and active within the airways, opens new possibilities for identification of therapeutic targets and ways to monitor airway inflammation. READ MORE

  6. 4. Mucosal regeneration following sinus surgery : an experimental study and clinical study

    Author : Karin Forsgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : chronic sinusitis; histopathology; Caldwell-Luc operation; sinus surgery; rabbit; regeneration; sinus mucosa; experimental sinusitis; microcirculation; blood flow; vasoreactivity; nerve regeneration; sympathetic; neuropeptide Y; tyrosine hydroxylase; immunocytochemistry;

    Abstract : The investigations described in this thesis concerned functional and structural aspects of the regenerated sinus mucosa following sinus surgery. In a biopsy material collected pre- and postoperatively from patients with chronic maxillary sinusitis, randomized for treatment with either Functional Endoscopic Sinus Surgery (FESS) or the Caldwell-Luc procedure (CL), histological parameters were evaluated semi-quantitatively and correlated to endoscopic findings and patients' symptoms. READ MORE

  7. 5. On Health-Related Quality of Life and Diagnostic Improvements in Rhinosinusitis

    Author : Pernilla Sahlstrand Johnson; allergi och livskvalitet Laryngoesofagologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rhinosinusitis; nasal polyps; health-related quality of life; absenteeism; Doppler ultrasound; acoustic streaming; attenuation;

    Abstract : Rhinosinusitis is defined as an inflammatory process involving the mucosa of the nose and one or more of the paranasal sinuses. The aims of the work presented in this thesis were to investigate the degree to which rhinosinusitis affects the health-related quality of life (HRQOL), and to determine whether the diagnosis of this condition can be improved using Doppler ultrasound. READ MORE