Professor Guan Kai: Allergy and Clinical Immunology Specialist
Professor Guan Kai is Director of the Department of Allergy at Peking Union Medical College Hospital (PUMCH), a senior chief physician, professor, and doctoral supervisor. His clinical work covers respiratory, food, drug, venom, skin, and severe systemic allergic disease.
He has particular expertise in allergic rhinitis, allergic asthma, food allergy, drug allergy, insect-venom allergy, anaphylaxis, atopic dermatitis, pollen allergy, and allergen-specific diagnosis and immunotherapy.
International patients can learn more about the hospital’s specialties, medical-record requirements, and appointment planning in our Peking Union Medical College Hospital international patient guide.
Clinical Specialties
Professor Guan’s principal areas include:
- allergic rhinitis and pollen allergy;
- allergic asthma;
- food allergy;
- drug allergy;
- bee, wasp, and other venom allergy;
- anaphylaxis;
- atopic dermatitis;
- allergen-specific immunotherapy; and
- complex cases involving several allergic conditions.
Allergic Rhinitis and Pollen Allergy
Allergic rhinitis can cause sneezing, nasal blockage, itching, watery discharge, poor sleep, reduced concentration, and worsening asthma. Symptoms may be seasonal or occur throughout the year.
Professor Guan has extensive experience with pollen-related disease and the identification of clinically relevant allergens. Diagnosis may involve the symptom pattern, exposure history, skin-prick testing, blood-specific IgE testing, and evaluation for asthma or sinus disease.
A positive allergy test does not always prove that an allergen causes symptoms. Results must be interpreted together with timing, exposure, and clinical history.
Allergic Asthma
Allergic asthma may cause wheezing, cough, chest tightness, or shortness of breath after exposure to pollen, dust mites, animals, mold, or other triggers. Some patients also have rhinitis, eczema, or food allergy.
Assessment may include lung-function testing, bronchodilator response, airway inflammation markers, allergy testing, and review of inhaler technique. Treatment may involve trigger reduction, inhaled medicine, biologic therapy in selected severe cases, and allergen immunotherapy when appropriate.
Sudden severe breathing difficulty, inability to speak normally, blue lips, fainting, or poor response to rescue medication requires immediate emergency care.
Food Allergy
Food allergy can cause hives, swelling, vomiting, breathing difficulty, dizziness, or anaphylaxis. It should be distinguished from food intolerance, poisoning, enzyme deficiency, and other non-allergic conditions.
Diagnosis requires careful review of what was eaten, how much, timing, reproducibility, cofactors such as exercise or alcohol, and objective test results. In selected cases, a medically supervised oral food challenge may be needed.
Broad food panels without a clear history can produce misleading positive results and unnecessary dietary restriction. Patients should not attempt high-risk food challenges at home.
Drug Allergy
A suspected drug allergy can limit future treatment, but many drug-allergy labels are inaccurate or incomplete. Evaluation may help determine whether a reaction was allergic, identify safer alternatives, or remove an incorrect label.
The most useful information includes the exact medicine, dose, timing, symptoms, photographs, treatment received, and other medicines taken at the same time. Depending on the suspected drug, assessment may involve skin tests, blood tests, or a supervised challenge.
Severe reactions such as Stevens-Johnson syndrome, toxic epidermal necrolysis, DRESS, organ injury, or anaphylaxis require special caution and may make challenge testing inappropriate.
Anaphylaxis and Venom Allergy
Anaphylaxis is a rapid, potentially life-threatening allergic reaction. Symptoms may involve the skin, breathing, blood pressure, heart, or digestive system. Epinephrine is the first-line emergency treatment when anaphylaxis is suspected.
Professor Guan evaluates patients with unexplained or recurrent anaphylaxis and reactions to insect stings. Assessment may include allergen testing, baseline tryptase, review of cofactors, and consideration of mast-cell disorders in selected cases.
Venom immunotherapy can substantially reduce the risk of future systemic reactions in appropriately selected patients. Availability, extract selection, treatment duration, and emergency precautions require specialist review.
Allergen Immunotherapy
Allergen immunotherapy gradually exposes a patient to a clinically relevant allergen to modify the immune response. It may be considered for selected patients with allergic rhinitis, allergic asthma, or venom allergy.
Treatment may be given by injection or, for certain allergens, under the tongue. It generally requires a prolonged course and regular monitoring. Suitability depends on confirmed sensitization, symptom severity, asthma control, other medical conditions, and the availability of an appropriate standardized allergen product.
Research and Academic Contributions
Professor Guan’s representative research includes patterns of airborne-allergen sensitization in children in northern China and clinical investigation of a high-affinity anti-IgE antibody for seasonal allergic rhinitis.
He has also participated in national expert consensus and guideline development. A medicine studied in a clinical trial should not be assumed to be approved, routinely available, or suitable for an individual patient.
Who May Consider a Consultation?
A consultation with Professor Guan or the PUMCH allergy team may be worth considering when a patient:
- has severe seasonal pollen allergy or persistent allergic rhinitis;
- has asthma linked to allergen exposure;
- has suspected food or drug allergy with an uncertain diagnosis;
- has experienced anaphylaxis or recurrent unexplained reactions;
- has had a systemic reaction to a bee or wasp sting;
- has several allergic conditions that are difficult to control;
- is considering allergen immunotherapy; or
- needs a second opinion before biologic or long-term allergy treatment.
Medical Records to Prepare
International patients should prepare:
- a concise medical summary and timeline of each reaction;
- clear photographs of hives, swelling, rash, or other visible symptoms;
- emergency, allergy, respiratory, and dermatology records;
- skin-prick, specific IgE, component-resolved, and tryptase results;
- lung-function and asthma-control test results;
- the exact names, doses, and timing of suspected foods or medicines;
- details of exercise, alcohol, infection, menstruation, or other cofactors;
- a list of current medicines and emergency treatments;
- records of previous immunotherapy or biologic treatment; and
- a clear list of questions for the specialist.
Patients should bring the packaging or photographs of suspected medicines and foods when available.
Planning an International Consultation
Appointments with senior specialists may be limited. Before traveling, patients should confirm whether records can be reviewed, whether an in-person examination is required, and whether testing must be stopped or adjusted before the visit.
Remote medical-record review is subject to physician authorization. Allergy testing and supervised challenges may require an in-person visit with emergency support available.
How CMCS Can Assist
CMCS – China Medical Concierge Shanghai is an independent medical concierge and health management company, not a hospital. We assist international patients with organizing and translating medical records, identifying an appropriate specialist, requesting appointment availability, arranging interpretation, and planning medical travel in China.
Access to Professor Guan, testing, immunotherapy, biologic treatment, or remote review is subject to the doctor’s and hospital’s approval. CMCS does not guarantee appointments, treatment eligibility, or clinical outcomes.
For assistance, contact CMCS:
- Email: contract@medicalsh.com
- WhatsApp: Contact us on WhatsApp
- Website: www.medicalsh.com
Important Note
Doctor titles, clinical roles, research activities, test and treatment availability, and appointment arrangements may change. Patients should confirm current information before travel. This profile is based on publicly available hospital and academic sources and is provided for general information only. It is not individual medical advice and does not replace assessment by a qualified allergy specialist.
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