Comparison of airflow characteristics after Draf Ⅲ frontal sinus surgery and normal person by numerical simulation.

Draf III frontal sinus surgery is confirmed as an effective surgical treatment for refractory sinusitis and frontal sinus tumors, etc. Although it has been reported to improve symptoms and reduce the recurrence rate of polyps significantly, the study of airflow characteristics in frontal sinus after Draf III is still rare, especially compared with normal person. This study was designed to describe the airflow characteristics of frontal sinus after Draf III procedure and differences compared with normal subject.

Expression of Innate Immunity Genes in Epithelial Cells of Hypertrophic Adenoids with and without Pediatric Chronic Rhinosinusitis: A Preliminary Report.

Background: Adenoid hypertrophy (AH) is associated with pediatric chronic rhinosinusitis (pCRS), but its role in the inflammatory process of pCRS is unclear. It is thought that innate immunity gene expression is disrupted in the epithelium of patients with chronic rhinosinusitis (CRS), including antimicrobial peptides and pattern recognition receptors (PRRs). The aim of this preliminary study was to detect the expression of innate immunity genes in epithelial cells of hypertrophic adenoids with and without pCRS to better understand their role in pCRS.

The intranasal endoscopic removal of schwannoma of the pterygopalatine and infratemporal fossae via the prelacrimal recess approach.

Objective: This study was undertaken to analyze the results of a novel surgical method-the endoscopic prelacrimal recess approach (PLRA)-in patients with tumors involving the pterygopalatine fossa (PPF) and infratemporal fossa (ITF). The surgical technique and indications for this approach are also discussed.

Methods: The authors analyzed data from 7 cases involving patients who underwent resection of PPF and ITF tumors by means of the endoscopic PLRA from 2004 to 2013.

[CT and MRI diagnosis of lesions in unilateral maxillary sinus].

Objective: To study the CT and MRI findings of lesions in unilateral maxillary sinus, and to compare the effect of CT and MRI in the differential diagnosis of lesions in unilateral maxillary sinus.

Methods: Retrospective analysis of CT and contract-enhanced MRI imaging data from 34 patients with lesions in unilateral maxillary sinus which were diagnosed by endoscopic sinus surgery and postoperative pathology. The CT and contract-enhanced MRI's value in the differential diagnosis in lesions in unilateral maxillary sinus was analysed.

[Removal of Schwannoma in the pterygopalatine and infratemporal fossa via endoscopic prelacrimal recess approach].

Objective: To sum up and analyze the results of surgical removal of Schwannoma in the pterygopalatine and infratemporal fossa (PPF and ITF) through postero-lateral wall via prelacrimal recess approach (PLRA). The surgical technique and indications were presented and discussed.

Methods: Six patients aged from 29-59 year-old with Schwannoma in the PPF and ITF, who received the tumor resection via PLRA under endoscope, were enrolled in this paper.

[Clinical implication of global osteitis score system and its role in evaluation of osteitis of chronic rhinosinusitis].

Objective: To investigate the clinical application of Global Osteitis Score System (GOSS). To determine the association between GOSS, Lund-Mackay scores and Lund-Kennedy scores and to investigate the incidence of osteitis in patients with chronic rhinosinusitis (CRS).

Methods: Three hundreds and thirty-four patients with CRS were enrolled prospectively in a large tertiary referral center.

Intranasal endoscopic prelacrimal recess approach to maxillary sinus.

Background: The inferior turbinate (IT) and nasolacrimal duct (NLD) are often sacrificed while managing the diffuse lesion of maxillary sinus (MS). We report a new approach to MS without ablation of NLD and IT.

Methods: This retrospective study enrolled 19 hospitalized patients (aged from 42 to 68 years) who underwent endoscopic sinus surgery between 2003 and 2008.

[Analysis of follow-up outcomes of endoscopic modified Lothrop procedure].

Objective: To sum up the follow-up outcomes of endoscopic modified Lothrop procedure (EMLP) and retrospectively analyze the indications, methods and prognostic factors of EMLP.

Methods: The collected data of 73 cases who received EMLP with frontal sinus diseases were analyzed in this paper. The mean age was 45.

[Clinical application of Draf IIb frontal sinusotomy and it's modified procedures].

Objective: To summarize the follow-up outcomes of Draf IIb frontal sinusotomy and it's modified procedures, and to discuss the surgical indications and prognostic factors.

Methods: Thirty-two patients treated between 2004 and 2010 were enrolled in this study. There were 15 patients for recurrent frontal inverted papilloma (IP), 6 for mucocele, 4 for recurrent frontal sinusitis, 3 for osteoma, 2 for meningoencephalocele with cerebrospinal fluid rhinorrhea, 1 for meningoencephalocele alone and 1 for acute frontal sinusitis.

[Juvenile nasopharyngeal angiofibroma: endoscopic surgery and follow-up results].

Objective: To present the changes of surgical approaches for the resection of juvenile nasopharyngeal angiofibromas (JNA) and the follow-up results.

Methods: The clinical records of 59 patients with JNA treated under endoscope between 2002 and 2009 were reviewed retrospectively. The patients were divided into two groups: Group A (Radkowski I a-II b) and Group B (Radkowsik II c-III b).

[Histopathological observation of bone remodeling in rabbit sinusitis model].

Objective: To observe the histopathological finding of bone remodeling in rabbit sinusitis model at different time and the tendency, and to discuss the effect of bone in the pathogenesis of sinusitis.

Methods: First, the rabbit sinusitis model was made, then the experimental animals were divided into 3 groups according to the time of infection. There were 8 rabbits in each experimental group, and 4 rabbits in the control group.

[Long-term follow-up for outcomes of intranasal endoscopic dacryocystorhinostomy].

Objective: To sum up and analyze the long-term follow-up outcomes of intranasal endoscopic dacryocystorhinostomy (IEDCR) in patients with chronic dacryocystitis. The related factors to clinical effects were discussed.

Methods: The operative and postoperative data were collected in 275 patients (310 eyes, mean age 28.

Expression of survivin and enhanced polypogenesis in nasal polyps.

Background: The pathogenesis of nasal polyps still is not clear. This disease is believed to be inflammation related. Previous research has indicated that apoptosis in inflammatory cells is an important factor in the resolution of inflammation.

[Endoscopic nasal lateral wall dissection approach to maxillary sinus].

Objective: To report a new approach to maxillary sinus without ablation of nasolacrimal duct and inferior turbinate by endoscopic nasal lateral wall dissection (ENLWD). The preliminary clinical application results, the operative technique and indications were discussed.

Methods: Twelve hospitalized patients, aged from 42 years to 68 years, were enrolled in this paper, 9 patients were male and 3 were female.

[Endoscopic transpterygoid intervention of meningoencephalocele within lateral recess of sphenoid].

Objective: To report the results of endoscopic transpterygoid intervention of nine patients with meningoencephalocele and cerebrospinal fluid (CSF) leaks within lateral recess of sphenoid sinus (LRSS). The diagnosis, operative techniques and their related problems were discussed.

Methods: Nine hospitalized patients with meningoencephalocele and CSF leaks within lateral recess of sphenoid sinus (LRSS) were included in this paper.

[Quality of life for adolescents and children with chronic sinusitis and its influencing factors].

Objective: To investigate the status of the quality of life for adolescents and children with chronic sinusitis and its influencing factors.

Methods: Eighty-six patients were measured with the General Information Questionnaire and Chronic Sinusitis Quality of Life Scale. Six months after operation, the Chronic Sinusitis Quality of Life Scale was retested.

[Histopathologic study of the ethmoid bone in chronic sinusitis].

Objective: To investigate the histopathologic study of the ethmoid bone in chronic sinusitis (CRS) and the role of bone pathology in the pathogenesis of CRS.

Methods: Specimens of mucosa of ethmoid sinus with bone were collected during operation from 40 patients with CRS, 25 males and 15 females, aged 44.8, and specimens of mucosa of ethmoid sinus were collected from 16 patients with other otorhinolaryngologic diseases, 9 males and 7 females, aged 40.

[Surgery of ossifying fibroma of the sinuses].

Objective: To explore the different surgical choices for treating the ossifying fibroma of the sinuses. To summarize the management and characteristics of each surgical operation.

Methods: A retrospective evaluation of thirty-five patients with ossifying fibroma of the sinuses from August 1994 to July 2001 was presented.