Biomedical subjects
Mary Lee-Wong
Publications and source records attributed to Mary Lee-Wong.
A generalized reaction to thimerosal from an influenza vaccine.
BACKGROUND: Thimerosal is a preservative commonly used in ophthalmic solutions, otic drops, and vaccines because of its bactericidal property. OBJECTIVE: To report a case of a generalized reaction to thimerosal in a patient who received an influenza vaccine. METHODS: We describe a patient who developed a generalized maculopapular eruption after receiving a thimerosal-containing influenza vaccine. Patch testing was performed to determine if there was an allergy to thimerosal. RESULTS: Patch testing confirmed a T-cell-mediated sensitivity to thimerosal. CONCLUSIONS: Physicians need to be aware that thimerosal is found in many products, including vaccinations. Clinicians should also be aware that allergic reactions occur with exposure to thimerosal even in vaccines. To our knowledge, this is the first case report in the literature of a generalized reaction to thimerosalfrom an influenza vaccine.
The approach to conception for women with seminal plasma protein hypersensitivity.
PROBLEM: Allergic reactions to human seminal plasma protein has become increasingly recognized in the medical community. Treatment for most allergic conditions usually begins with avoidance of the offending allergen. For women with seminal plasma protein hypersensitivity (SPH) who desire to conceive, this approach is unacceptable. We describe a case report of a woman with an SPH who desired to have unprotected intercourse in order to conceive. METHODS: The patient underwent skin prick testing to her fiancé's fresh undiluted semen. Serum-specific IgG and IgE was performed by ELISA to the fiancé's whole seminal plasma and seminal plasma proteins (SPP). The patient underwent an intravaginal graded challenge to whole seminal fluid. Intrauterine insemination with washed spermatozoa was attempted but in vitro fertilization was subsequently required. RESULTS: The patient had a positive prick test to whole seminal plasma but negative specific IgG and IgE ELISA to SPPs. An intravaginal graded challenge to whole seminal plasma was well tolerated. However, she experienced a subsequent severe local reaction after unprotected intercourse. She deferred treatment with systemic desensitization to relevant SPPs. She failed intrauterine insemination but successfully conceived with in vitro fertilization. CONCLUSION: This case report emphasizes that SPH is not associated with sterility. It also indicates that whole seminal plasma graded challenge is not uniformly successful for the treatment of SPH.
Comparison of high-dose inhaled flunisolide to systemic corticosteroids in severe adult asthma.
OBJECTIVE: To investigate whether, after 48 h of IV treatment with corticosteroids, the use of high-dose inhaled flunisolide is as effective as systemic corticosteroids in adults hospitalized for a severe asthma exacerbation. DESIGN: Randomized, double-blind, placebo-controlled study. SETTING: Inpatient, an urban teaching hospital medical ward; outpatient, asthma clinic affiliated with the hospital. PARTICIPANTS: Forty patients aged 18 to 55 years with asthma exacerbation requiring hospitalization. INTERVENTIONS: Inhaled flunisolide via metered-dose inhaler (250 micro g per activation) eight puffs bid compared to systemic corticosteroids alone, following eight doses of IV corticosteroids. MEASUREMENTS AND RESULTS: Peak expiratory flow rate (PEFR), FEV(1), and symptom scores were recorded on day 1 (at presentation to the emergency department) and day 7, at an outpatient follow-up visit. From day 1 to day 7, mean PEFR increased from 190 to 379 L/min in the flunisolide group, and from 207 to 347 L/min in the systemic corticosteroids group (p = 0.95; 95% confidence interval [CI], - 66.3, infinity ). Mean FEV(1) increased from 1.6 to 2.3 L in the flunisolide group, and from 1.4 to 2.1 L in the systemic corticosteroids group (p = 0.33; 95% CI, - 21.7, infinity ). Changes in symptom scores were - 0.7 in the flunisolide group and - 0.9 in the systemic corticosteroids group (p = 0.39; 95% CI, - 0.4, infinity ). Hospital readmission rates on day 7 were zero for both groups. CONCLUSIONS: High-dose inhaled corticosteroids are as effective as systemic corticosteroids during a 7-day period following admission to the hospital for severe asthma.
A case of hydrocortisone desensitization in a patient with radiocontrast-induced anaphylactoid reaction and corticosteroid allergy.
Allergic reactions and systemic desensitization to corticosteroids have been documented rarely in English language literature. These reactions appear more often when the agent is applied topically and may lead to dangerous complications in patients if administered i.v. Therefore, the safety and efficacy of using an i.v. corticosteroid for desensitization in a patient who has a history of allergy to corticosteroid must be weighed carefully, especially when the aim of its use is to prevent an allergic reaction from a second drug. We report a case of successful systemic hydrocortisone desensitization in a patient with radiocontrast-induced anaphylactoid reaction and corticosteroid allergy. Sensitization to corticosteroids was determined through skin testing. The patient was desensitized to hydrocortisone and premedicated with hydrocortisone and diphenhydramine and subsequently underwent cardiac catheterization with radiocontrast without adverse reaction.