Cysteinyl leukotriene 1 receptor expression in nasal polyps.

Cysteinyl leukotrienes (CysLTs) have been implicated in the pathogenesis of chronic rhinosinusitis (CRS). This study was undertaken to better understand the role of CysLTs in the development of CRS through 1). assessment of the pattern of expression of CysLT1 receptor in nasal polyps from patients with CRS and 2). correlation of expression of CysLT1 receptor with clinical features. Expression of CysLT1 receptor was evaluated immunohistochemically in nasal polyps from 20 patients with CRS and nasal mucosa from 10 control subject undergoing plastic surgery of the nose. Patients with CRS showed significantly higher expression of CysLT1 receptor as compared with the control group (p<0.05). The expression of CysLT1 receptor in sub-epithelial inflammatory infiltrates tended to be higher in patients with CRS and allergy as compared with patients with CRS but without allergy (p=0.07). In particular, the expression of CysLT1 receptor in sub-epithelial inflammatory infiltrates was significantly greater in 3 patients with CRS and drug allergy as compared with patients with CRS but without drug allergy (p=0.03). Increased expression of CysLT1 receptor in inflamed mucosa of nasal polyps in patients with allergy might suggest particular role of CysLTs in the pathogenesis of nasal polyps in this group of patients.

Haemangiopericytoma-like tumor of the nasal cavity treated by endoscopy - a case report.

Haemangiopericytoma (HPC) is an uncommon, vascular tumor derived from Zimmerman pericytes surrounding blood vessels. HPC constitute around 1% of all tumors of vascular origin and may appear anywhere, 5% of them can be situated in nasal cavity. Tumor location within the head and neck predispose to its benign character and improves prognosis. This case report presents the case of 33-year-old patient with haemangiopericytoma-like tumor of the nasal cavity, presented symptoms of impaired nasal breathing and recurrent epistaxis. Tumor was excised with 0 degree endoscope. The follow-up recurrence-free period was 2 year 6 months and shows this is effective way of treatment. Described in the literature late recurrences and metastases reminds that regular, life-long observation is mandatory.

Evaluation of fully biodegradable nasal packings in functional endoscopic sinus surgery ­ a multi-centre study.

THE AIM: This work was to compare an innovative solution, i.e. a fully biodegradable nasal packing Nasopore®, with a traditional one, in the aftercare of patients subjected to functional endoscopic sinus surgery. MATERIAL AND METHOD: Prospective, blinded study with sequential enrollment conducted at three study centres. One of the investigators evaluated during surgery the level of bleeding in each of the nasal cavities and at the end of surgery he applied the test packing, the biodegradable dressing Nasopore®, to one randomly chosen nasal cavity, and a control packing to the other one. The other investigator removed during aftercare the control packing and conducted the follow-up. During the control visits (24-48 hours, 10 and 30 days post-op.) the subjects evaluated their headache, pain in the nose, pressure in the forehead as well as their nasal obstruction. RESULTS: A total of 39 women and 44 men at the age of 47 years on average (min. 19, max. 82) were qualified for the study. The largest differences between different types of nasal dressings were observed with regard to reduction of nasal obstruction in the fist 10 days after surgery (P<0.005). In relation to the pain in the area of the head and nose as well the pressure in the forehead on every visit, better outcomes were observed for the test dressing. Statistical difference (P<0.05) was observed on the fist follow-up visit for the headache and pressure in the forehead as well as on the fist and second visit for the pain in the nose. CONCLUSION: The fully biodegradable nasal dressing Nasopore® may constitute significant improvement and facilitation of aftercare in functional endoscopic sinus surgery while increasing the patients' satisfaction and lowering the postoperative discomfort.

Endoscopic drainage of orbital abscesses aided with intraoperative sonography.

BACKGROUND AND PURPOSE: Accurate localization and adequate visualization of the superiorly or inferiorly located subperiosteal orbital abscesses or intraorbital abscess is difficult with transnasal endoscopic approach. Sonography is a well-known and effective tool for evaluation of orbital pathologies but no paper documenting intraoperative application of this method in orbital abscess surgery has been published to date. MATERIAL AND METHODS: We present a series of 12 patients in whom orbital abscesses were drained endoscopically with an aid of neuronavigation and intraoperative ultrasonography. The abscesses were localized subperiosteally in the medial (n=6), superior (n=2) or inferior (n=1) part of the orbit whereas in 3 patients the abscess was localized in the intraconal space. RESULTS: According to intraoperative sonographic imaging complete drainage of the abscess was achieved in 11 out of 12 patients and no complications occurred. Intraoperative sonography helped to limit opening of the orbital wall in the medial subperiosteal abscesses, enabled check-up for completeness of drainage of the far extending pouches in the superior and inferior subperiosteal abscesses and enabled visualization of the tip of surgical instrument when reaching deeply located intraorbital abscesses. CONCLUSIONS: Intraoperative ultrasonography facilitates the endoscopic management of orbital abscesses, especially those which are difficult to reach due to subperiosteal location in the superior and inferior parts of the orbit, or abscesses localized intraorbitally.