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Biomedical subjects

J P Corey

Publications and source records attributed to J P Corey.

49 records · Page 3Linked to original sources

Diagnostic efficacy of in vitro methods vs. skin testing in patients with inhalant allergies.

The purpose of our study was to investigate the diagnostic efficacy of two selected methods of in vitro allergy testing. Specifically, the PRIST/modified RAST I125 isotope systems and the Quantizyme/modified EAST alkaline phosphatase method were compared. The time, expense, convenience, and diagnostic efficacy of the two procedures are discussed. Special attention is given to the practicality of each method for the practicing physician.

Alkaline Phosphatase↗

Metastatic vaginal carcinoma to the temporal bone.

Metastatic carcinoma of the temporal bone is being reported with increasing frequency. A literature review reveals 16 new cases reported in the past 2 years. In this article we present the first case of vaginal squamous cell carcinoma metastatic to the temporal bone reported in the literature. The pathophysiology, clinical presentation, and diagnostic difficulties of metastatic carcinoma to the temporal bone are discussed.

Aged↗

Fungal diseases of the sinuses.

With recent advances in medicine, fungal diseases are becoming not only better understood, but also increasingly important in the management of patients with paranasal sinus disease. Fungal sinus diseases run the gamut from allergic fungal rhinitis and allergic fungal sinusitis, through fungus balls, to invasive and fulminant fungal sinusitis. Allergic fungal sinusitis may be thought of as the sinus counterpart of allergic bronchopulmonary fungal disease. Patients typically are first seen with chronic sinusitis. They may be atopic, and the peripheral blood often shows elevated IgE levels and absolute eosinophil counts. Such patients may be managed conservatively, requiring only surgical drainage and corticosteroid therapy. Fungus balls are typified by the so-called "aspergilloma." Although patients often have some predisposing factor, such as local tissue hypoxia or massive fungal exposure, most patients are not immunocompromised. Fungus balls may be treated with the traditional Caldwell-Luc operation or with newer endoscopic procedures. Invasive or fulminant fungal sinusitis generally occurs in immunosuppressed patients and merits aggressive surgical excision and debridement, as well as systemic chemotherapy, usually amphotericin B. In this article, we review fungal disease of the paranasal sinuses and present findings from our review of patients with chronic sinusitis.

Humans↗

Comparison of serum beta-2-microglobulin levels in patients with symptoms of allergic rhinitis and elevated modified RAST scores vs. a control population.

Forty-four subjects, having clinical histories consistent with allergic rhinitis with modified RAST score(s) of two or more for at least one of five locally prevalent aeroantigens, were compared with 48 control subjects with modified RAST scores of zero for all given aeroallergens. There was no significant difference between these two groups in mean levels of serum beta-2-microglobulin (Student's t, p greater than 0.05).

Adult↗

Revision endoscopic ethmoidectomy for chronic rhinosinusitis.

In summary, revision endoscopic surgery for chronic rhinosinusitis can be performed safely by using the middle turbinate (or portion thereof) or the anterior wall of the sphenoid as a landmark. These cases are more difficult and may be more prone to bleeding and scarring. The surgeon should be thoroughly familiar with and not hesitate to switch to conventional techniques in the event of excessive bleeding, proptosis, or a loss of landmarks. Aggressive postoperative care and follow-up, including office endoscopic "touch-up" procedures, may be necessary to maintain control of aggressive disease, along with continued medical management and any indicated immunotherapy.

Cerebrospinal Fluid Rhinorrhea↗

Comparison of complications following frontal sinus fractures managed with exploration with or without obliteration over 10 years.

Two hundred twelve patients were treated for facial or skull trauma at the West Virginia University Hospital between the years 1977 and 1987. Sixty-six of these patients had frontal sinus or nasofrontal duct trauma. Follow-up information was obtained on 64 of these patients through clinic visits, chart review, questionnaires to patients and physicians, and telephone calls to the patients. Follow-up greater than 1 year was obtained on 52 patients. Sixty-four patients were managed either with a frontal sinus obliteration or with an open exploratory procedure. The incidence of complications occurring in the past 10 years after each of these procedures is compared. Because the indications for each procedure vary somewhat, data is presented on fracture etiology, associated injuries, specific fracture location, fracture displacement, severity of injury, and associated cerebrospinal fluid leaks.

Adolescent↗

Otopathology in cranial facial dysostosis.

Thirty patients with Crouzon's disease were evaluated longitudinally for type, incidence, and progression of otopathologic changes. The spectrum of otopathologic manifestations included otitis media with effusion, tympanic membrane atelectasis, tympanic membrane perforation, cholesteatoma, and grade I microtia. The frequency of ear disease progressed from 37% during infancy to 62% in older patients. The degree and type of hearing loss were also analyzed. Radiographic cephalometric measurements of the nasopharynx and temporal bone illustrated growth disturbances of the nasopharyngeal dimensions that worsened with increasing age. Our findings suggest that patients with Crouzon's disease are at risk from birth for otitis media with effusion and its sequelae and that the consequent incidence and severity of otopathologic changes increase with age.

Adolescent↗

Surgical complications in patients with head and neck cancer receiving chemotherapy.

We evaluated postoperative complications in a randomized series of patients with head and neck cancer who received preoperative chemotherapy. Forty-two patients with advanced squamous carcinoma of the head and neck were randomized to receive either high-dose methotrexate with leucovorin calcium rescue (23 patients) or no chemotherapy (19 patients) prior to definitive conventional treatment. The two groups of patients were balanced by sex, disease site, stage, histologic grade, and prior therapy. Sixteen of the 23 patients receiving preoperative chemotherapy had postoperative complications, whereas only eight of 19 patients not receiving chemotherapy had postoperative complications. Surgical complications included wound infections, orocutaneous fistulas, and flap necrosis.

Antineoplastic Combined Chemotherapy Protocols↗

Sensorineural hearing loss in lupus erythematosus.

A 51-year-old woman had sudden profound sensorineural hearing loss (SNHL) in her right ear, followed by profound SNHL in her left ear three weeks later. On subsequent work-up, a diagnosis of systemic lupus erythematosus (SLE) was made on the basis of an antinuclear antibody titer of 1:500 and immunofluorescence below the dermis on skin and muscle biopsy specimens. Treatment with prednisone and cyclophosphamide did not improve the hearing loss. To our knowledge, this is the second reported case of SLE occurring with SNHL and the first reported case of bilateral hearing loss.

Cyclophosphamide↗

Prognostic implications of therapy for necrotizing external otitis.

Necrotizing external otitis is a slowly progressive infection of the ear canal and basal skull caused by Pseudomonas aeruginosa. Treatment with aminoglycoside and antipseudomonal penicillin antibiotics significantly reduces extension of infection, decreases the severity of the associated cranial nerve injury, and limits disease-related mortality. Combined antimicrobial and surgical treatment appears to be more efficacious than antibiotics alone when evaluated for comparable stages of the disease. However, invasive surgical procedures may promote the spread of infection, particularly in the absence of appropriate antibiotic therapy. A high index of suspicion for the syndrome should be aroused when external otitis is present for longer than two weeks, especially after local debridement and topical antibiotic treatment. Aggressive use of systemic antibiotic therapy in diabetic patients, who are at greatest risk, should reduce disease extension and lessen the need for multiple surgical procedures.

Aminoglycosides↗

The role of IgE-mediated hypersensitivity in otitis media with effusion.

INTRODUCTION: The role of immunoglobin (Ig) E-mediated hypersensitivity in otitis media with effusion (OME) has been the subject of much controversy and personal bias. Uncontrolled studies report the incidence of respiratory allergy in children with OME to range from 4% to over 90%. MATERIALS AND METHODS: Children 1 to 18 years old who had OME requiring a myringotomy and tubes from January 1, 1987, through July 1, 1988, were the subjects of this study. The history of allergic and radioallergosorbent test (RAST) analysis of specific serum IgE levels was undertaken for 26 allergens on 89 children in the study group and 59 children in the control group. RESULT: The incidence of allergen as diagnosed by RAST score was higher in children with OME than children in the control group (P > .05). There was no correlation between positive RAST scores and the number of polyethylene-ventilating (PE) tubes previously placed, history of tonsillectomy, history of adenoidectomy, or the character of the effusion (mucous v serous). CONCLUSION: Respiratory allergy is a factor involved in the pathogenesis of OME.

Adenoidectomy↗

Detection of the nasal cycle.

The nasal cycle is a fluctuation of nasal patency due to the stages of congestion and decongestion of the nasal mucosa on both the right and left nasal conchae. We compared the effectiveness of the rhinostereometer in detecting the presence of a nasal cycle with the acoustic rhinometer whose effectiveness we have demonstrated in previous studies. The rhinostereometer measures the horizontal range of the most anterior portion of the inferior turbinate. The acoustic rhinometer measures the volume and various cross-sectional areas of the nostril using a pulse emitted from a sound tube. Among some of the subjects tested, it was found that rhinostereometer and acoustic rhinometer measurements of nasal patency correlated reasonably well with r values up to 0.78. The overall correlation between rhinostereometry and acoustic rhinometry was not as strong at r = 0.36. Observed variations between rhinostereometry and acoustic rhinometry could be a result of certain confounding variables that may have altered the nasal cycle between measurements.

Acoustics↗