Biomedical subjects

Ray S Davis

Publications and source records attributed to Ray S Davis.

3 recordsLinked to original sources

PubMed2006

Facial angioedema in children due to ladybug (Harmonia axyridis) contact: 2 case reports.

BACKGROUND: Only 9 adult cases of immediate-hypersensitivity reaction to ladybugs, also known as Asian lady beetles (Harmonia axyridis), have been documented in the literature. These patients have all shown symptoms of allergic rhinoconjunctivitis or asthma from exposure to ladybugs. OBJECTIVE: To describe the first pediatric patients with severe allergic facial angioedema requiring emergency department management after exposure to ladybugs. METHODS: Evidence of IgE-mediated hypersensitivity to ladybugs was documented by positive skin prick test reactions, correlating with exposure history. RESULTS: Two cases in preschool boys had similar features, although they were evaluated and tested by 2 different allergists. Both patients developed severe facial or periocular angioedema with no significant respiratory involvement after exposure to ladybugs outside their infested homes. Both patients required an emergency department visit for treatment. Allergy evaluation using ladybug extract for skin prick testing showed markedly positive reactions in both patients. There were no further episodes after environmental control measures were instituted. CONCLUSIONS: Although allergic respiratory or cutaneous reactions to ladybugs are uncommon, a high index of suspicion from exposure history and confirmatory skin testing can be conclusive for the diagnosis.

Angioedema↗

PubMed2004

Changing physician prescribing patterns through problem-based learning: an interactive, teleconference case-based education program and review of problem-based learning.

BACKGROUND: Although asthma guidelines have recommended the use of anti-inflammatory controller medications since 1991, studies have consistently shown widespread failure to follow the guidelines. Major barriers include lack of knowledge and the inability to operationalize knowledge. Improved continuing medical education methods should result in more effective learning by physicians and other health care professionals, leading to better adherence to guidelines, resulting in better outcomes. OBJECTIVE: To evaluate the effectiveness of an interactive, case-based, educational intervention, also known as problem-based learning, using a series of interactive, case-based teleconferences. METHODS: A series of interactive, case-based teleconferences was completed with 20 primary care physicians. Each case involved a child aged 16 months to 12 years with asthma. A 12-month analysis of physician prescribing patterns was conducted. RESULTS: Program acceptance by the 20 physicians was uniformly positive. Significant improvement was noted, with an overall increase in controller use. Review of prescription data showed an increase in inhaled corticosteroid use from an average of 2.54 to 7.76 refills per month for the 6 months after the intervention (P < .001). CONCLUSIONS: After participating in a unique educational intervention-problem-based learning using interactive, case-based teleconferences-the prescribing patterns of physicians were altered significantly toward better adherence to asthma guidelines, as demonstrated by an increased use of anti-inflammatory controller medications (inhaled corticosteroids and leukotriene antagonists).

Anti-Asthmatic Agents↗

PubMedDate not supplied

Chronic cough: an interactive case discussion.

The following case was presented at the Eastern Allergy Conference May 2005 to each of four small group sessions in an attempt to incorporate problem-based learning (PBL) into the curriculum of the conference for the first time in its 18-year history. Before this, the format had always been non-stop lectures for four days. The attempt to use PBL in breakout sessions was due to the well-documented improved learning experience with PBL demonstrated by multiple studies in the literature of PBL for CME. This PBL case on an adult who presents with a "chronic cough" was linked to a series of three didactic lectures to reinforce the differential diagnoses in this patient. The three lectures followed the PBL breakout sessions (during the morning of the conference) and were entitled Laryngeal Pharyngeal Reflux (LPR), Chronic Sinusitis: A Surgical Perspective and Chronic Cough. Although the best learning scenario for this case occurs when there is interaction with one's peers, review of this case and answering the questions that were posed by the facilitators can still provide a great learning experience.

Adult↗