• Disease
  • Sphenoid
  • Sphenoid Sinus
  • William E Bolger

    Prominent publications by William E Bolger

    KOL Index score: 13569

    Maxillary sinus hypoplasia is an anomaly of the paranasal sinuses occasionally encountered by otolaryngologists. Although this entity has been previously reported, an association between maxillary sinus hypoplasia and anomalies of other paranasal sinus structures, such as the uncinate process, has not yet been described. Additionally, the literature lacks a system by which the various types of maxillary sinus hypoplasia can be classified using computerized tomographic (CT) imaging. Two ...

    Also Ranks for: Uncinate Process |  maxillary sinus hypoplasia |  paranasal sinuses |  type iii |  14 patients
    KOL Index score: 12402

    OBJECTIVE: To report our outcomes with the repair of spontaneous cerebrospinal fluid (CSF) leaks and to demonstrate how management of underlying intracranial hypertension improves outcomes.

    STUDY DESIGN: Retrospective review of spontaneous CSF leaks treated at the University of Pennsylvania Health System from 1996 to 2006. Data collected included demographics, nature of presentation, body mass index (BMI), site of skull base defect, surgical approach, intracranial pressure, and clinical ...

    Also Ranks for: Spontaneous Csf Leaks |  intracranial hypertension |  retrospective review |  surgical approach |  ventriculoperitoneal shunt
    KOL Index score: 10864

    Endoscopic surgery of the posterior ethmoid and sphenoid sinuses can present the operator with a considerable challenge. Although endoscopic training and physician experience have increased significantly in the past decade, surgical complications such as optic nerve trauma and cerebrospinal fluid leak still occur. Surgeons reporting such complications cite a lack of orientation within the dissection field as a primary cause. Because endoscopic sinus surgery is now being performed more ...

    Also Ranks for: Superior Turbinate |  sphenoid sinus |  endoscopic approach |  posterior ethmoids |  dissection field
    KOL Index score: 10459

    OBJECTIVES: Encephaloceles usually involve herniation of frontal lobe tissue through an anterior cranial fossa defect into the ethmoid sinus or nasal cavity. Encephaloceles can also result from temporal lobe herniation through a middle fossa defect into the sphenoid sinus. Within the sphenoid, encephaloceles are thought to occur most commonly in the central or midline aspect of the sinus. Lateral sphenoid encephaloceles, especially within the lateral aspect of the sphenoid sinus when the ...

    Also Ranks for: Sphenoid Sinus |  lateral recess |  retrospective review |  patients lesions |  nasal cavity
    KOL Index score: 9334

    Coronal plane computerized tomographic (CT) scanning has dramatically improved the imaging of paranasal sinus anatomy as compared to sinus radiographs. Increasingly, subtle bony anatomic variations and mucosal abnormalities of this region are being detected. Data regarding the "background" prevalence of these findings are needed to determine their clinical relevance. A detailed analysis of coronal plane CT scans of the paranasal sinuses obtained in 202 consecutively imaged patients was ...

    Also Ranks for: Mucosal Abnormalities |  anatomic variations |  paranasal sinus |  coronal plane |  middle turbinate
    KOL Index score: 9226

    OBJECTIVES: Previous reports indicate that elevated intracranial pressure (ICP) may cause spontaneous cerebrospinal fluid (CSF) leaks. In this study we examined the clinical diagnosis of benign intracranial hypertension (BIH) in this population using the modified Dandy criteria.

    METHODS: We performed a retrospective review of clinical data and measurements of ICPs after surgical repair.

    RESULTS: Sixteen patients with spontaneous CSF leaks were surgically treated from 1996 to 2002. In 11 ...

    Also Ranks for: Spontaneous Cerebrospinal |  fluid leaks |  intracranial hypertension |  surgical repair |  diagnosis bih
    KOL Index score: 9183

    OBJECTIVE: The role of elevated cerebrospinal fluid (CSF) pressures in the pathophysiology of various CSF leaks is not clear. Empty sella syndrome (ESS) is a radiographic finding that can be associated with elevated CSF pressures and may represent a radiographic indicator of intracranial hypertension. We present our experience with CSF leaks of various causes, the prevalence of ESS in the spontaneous and nonspontaneous categories, and the potential pathophysiology and unique management ...

    Also Ranks for: Csf Leaks |  cerebrospinal fluid |  intracranial hypertension |  imaging studies |  sella syndrome
    KOL Index score: 8621

    BACKGROUND: Traditionally, idiopathic cerebrospinal fluid (CSF) leaks have been associated with normal intracranial pressure (ICP). We speculate that at least one subset of these leaks may be associated with elevated ICP, more specifically, idiopathic intracranial hypertension (IIH). We sought to identify radiographic manifestations suggestive of elevated ICP in 14 patients with idiopathic CSF leaks who clinically and epidemiologically resembled patients with IIH.

    METHODS: We ...

    Also Ranks for: Idiopathic Intracranial |  radiographic signs |  cerebrospinal fluid |  elevated icp |  patients iih
    KOL Index score: 8508

    Recently, the role of various cytokines in the pathogenesis of chronic rhinosinusitis has come under investigation. Various studies have reported increased levels of interleukin-3, interleukin-4, interleukin-5, interleukin-13, and granulocyte macrophage-colony stimulating factor in the sinonasal mucosa of patients with chronic rhinosinusitis. The present study investigated the levels of pro-inflammatory cytokines, including interleukin-1 beta (IL-1 beta), interleukin-5 (IL-5), ...

    Also Ranks for: Chronic Sinusitis |  necrosis factor |  sinonasal mucosa |  levels il6 |  systemic corticosteroids
    KOL Index score: 8384

    OBJECTIVES: Preliminary data suggest efficacy for the endoscopic approach for sinonasal malignancy. The purpose of this study is to evaluate the effectiveness of the endoscopic approach for the resection of sinonasal squamous cell carcinoma (SCC).

    STUDY DESIGN: Retrospective analysis of patients undergoing endoscopic resection of sinonasal SCC from August 1996 to May 2004.

    METHODS: Eleven patients were treated with curative intent. Demographic data, histopathology, extent of tumor ...

    Also Ranks for: Endoscopic Resection |  squamous cell |  sinonasal scc |  carcinoma female follow |  distant metastasis
    KOL Index score: 8372

    BACKGROUND: Spontaneous cerebrospinal fluid (CSF) leak is a condition that previously has been considered idiopathic and classified as having "normal" intracranial pressure (ICP). We present clinical and radiographic evidence that indicates elevated ICP in this group. In addition, we review the pathophysiology and unique management issues in caring for patients with spontaneous CSF leak.

    METHODS: We present a retrospective review of medical records, imaging studies, ICP measurements, and ...

    Also Ranks for: Fluid Leaks |  spontaneous cerebrospinal |  intracranial pressures |  patients condition |  retrospective review
    KOL Index score: 8303

    BACKGROUND: Congenital skull base defects have traditionally been treated via an intracranial approach. Recent advances in endoscopic management have made minimally invasive extracranial approaches feasible, with less morbidity.

    OBJECTIVE: To determine the success of endoscopic treatment of congenital cerebrospinal fluid leaks and encephaloceles.

    MAIN OUTCOME MEASURES: Retrospective review of congenital cerebrospinal fluid leaks and encephaloceles treated from January 1, 1992, to ...

    Also Ranks for: Skull Base |  nasal obstruction |  cerebrospinal fluid |  endoscopic management |  average age
    KOL Index score: 8191

    Posterior epistaxis is a significant medical problem that can be challenging to treat. Endoscopic surgery could potentially reduced operative time and patient risk; however, surgeons report difficulty in endoscopically isolating the major offending artery, the sphenopalatine. These difficulties could be reduced if a recognizable anatomic structure marked the region of the artery. The study objective is to characterize the relationship of a relatively unknown anatomic structure, the ...

    Also Ranks for: Sphenopalatine Artery |  crista ethmoidalis |  endoscopic ligation |  posterior epistaxis |  operative time
    KOL Index score: 8009

    BACKGROUND: Over the past 20 years, many patients have benefited from endoscopic sinus surgery and its ability to relieve sinus obstruction. However, problems still occur with surgery, thereby leaving room for innovation. Recently, catheter-based technology has provided new options for treating cardiac, vascular, and urologic diseases. We speculated that catheter technology also might offer new treatment options for sinusitis patients. The purpose of this investigation was to explore the ...

    Also Ranks for: Sinus Ostia |  cadaver model |  initial safety |  catheter technology |  based dilation
    KOL Index score: 7956

    OBJECTIVE: To determine the effect of functional endoscopic sinus surgery (FESS) on facial skeletal growth in children.

    DESIGN: Prospective randomized controlled animal study; retrospective histopathologic study of pediatric FESS specimens.

    SETTING: Academic tertiary referral medical center.

    PARTICIPANTS: Eight newly weaned piglets; uncinate and ethmoid bone of FESS specimens from 84 children.

    INTERVENTIONS: The piglets underwent unilateral FESS. When they had developed to nearly adult ...

    Also Ranks for: Facial Growth |  sinus surgery |  pediatric endoscopic |  computed tomography |  patient age


    William E Bolger: Influence Statistics

    Sample of concepts for which William E Bolger is among the top experts in the world.
    Concept World rank
    study endoscopic sphenoidotomy #1
    contrast bactroban #1
    092 07 #1
    central sphenoid patients #1
    sinusitis recalcitrant #1
    regard obstruction #1
    sinus lateralis #1
    sinusitis response #1
    recurrence sinus barotrauma #1
    agger cell role #1
    nasal bone orbit #1
    sinus bone children #1
    3 307 #1
    endoscopically guided cultures #1
    pterygopalatine space #1
    turbinate meatus #1
    8 8 sinuses #1
    symptomatic epidermoid cyst #1
    endoscopic sphenoidotomy portion #1
    trauma frequent #1
    guided sinonasal #1
    sphenoid recess #1
    occult hemostatic defects #1
    spinal puncture encephalocele #1
    bactroban nasal bacitracin #1
    limited visualization morbidities #1
    multicenter 24week analysis #1
    contrast rigid sinonasal #1
    maxillary sinus hypoplasia #1
    landmark sinus #1
    csf leak variety #1
    sphenoid defects #1
    ethmoidalis #1
    sinus reduce #1
    sphenoethmoid cell #1
    operative field surgery #1
    sinuses bactroban #1
    obstructed sinus ostia #1
    barotrauma recurrent #1
    mucopus emanating #1

    Key People For Sphenoid Sinus

    Top KOLs in the world
    Albert L Jr Rhoton
    microsurgical anatomy cavernous sinus surgical approaches
    David W Kennedy
    chronic rhinosinusitis endoscopic sinus surgery frontal sinus
    William E Bolger
    sphenoid sinus superior turbinate cerebrospinal fluid
    Dharambir Singh Sethi
    sphenoid sinus sella turcica orbital apex
    Carl H Snyderman
    skull base endoscopic endonasal nasoseptal flap
    Donald C Lanza
    chronic rhinosinusitis inverted papilloma frontal sinus

    William E Bolger:Expert Impact

    Concepts for whichWilliam E Bolgerhas direct influence:Sphenoid sinus,  Superior turbinate,  Spontaneous csf leaks,  Cerebrospinal fluid,  Endoscopic management,  Maxillary sinus,  Uncinate process,  Sella syndrome.

    William E Bolger:KOL impact

    Concepts related to the work of other authors for whichfor which William E Bolger has influence:Chronic rhinosinusitis,  Sphenoid sinus,  Skull base,  Concha bullosa,  Cerebrospinal fluid,  Inverted papilloma,  Computed tomography.



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    North Florida Sinus Center, Jacksonville, Florida | Department of Otorhinolaryngology–Head and Neck Surgery, Mayo Clinic, Jacksonville, Fla. | Division of Rhinology, Mayo Clinic Florida, Jacksonville, Florida, U.S.A | Maryland Sinus Center, Bethesda,