We report a case of bronchiolitis obliterans associated with Stevens-Johnson syndrome. A 59-year-old man presented with respiratory distress that gradually worsened over 3 months. He had been diagnosed with Stevens-Johnson syndrome 3 months before admission. He had no history of previous airway disease. On physical examination, expiratory breathing sounds were not audible, and a chest X-ray revealed a hyperinflated lung. A pulmonary function test indicated a severe obstructive pattern. Computed tomography scans of inspiratory and expiratory phases of respiration showed oligemia and air trapping, and both were more prominent on expiration view than on inspiration view. The pathogenesis of bronchiolitis obliterans associated with Stevens-Johnson syndrome is largely unknown.
Anti-Bacterial Agents/therapeutic use ; Bronchiolitis Obliterans/etiology/*radiography/therapy ; Bronchoscopy ; Dyspnea/*complications ; Fatal Outcome ; Humans ; Male ; Middle Aged ; Radiography, Thoracic ; Respiratory Distress Syndrome, Adult/*etiology/therapy ; Respiratory Function Tests ; Roxithromycin/therapeutic use ; Stevens-Johnson Syndrome/*complications/drug therapy ; Tomography, X-Ray Computed/methods ; Tracheostomy

PURPOSE: Cefaclor is widely prescribed for various infectious diseases. As its consumption increases, the number of hypersensitivity reactions to cefaclor has increased. This study aimed to evaluate the immunologic findings of immediate hypersensitivity to cefaclor. MATERIALS AND METHODS: We enrolled 47 patients with immediate hypersensitivity to cefaclor from Ajou University Hospital and Asan Medical Center. Serum specific IgE, IgG1, and IgG4 antibodies to cefaclor-human serum albumin (HSA) conjugate were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS: The most common phenotype was anaphylaxis (Group I, 78.7%), followed by urticaria (Group II, 21.3%). The detection of specific IgE, IgG1, and IgG4 to cefaclor-HSA conjugate by ELISA tended to be higher in Group I (40.5%, 41.7%, 21.6%) than in Group II (20.0%, 20.0%, 0%) with no statistical significance. Significant associations were found between specific IgE and IgG1 or IgG4 (p<0.001, p=0.019). ELISA inhibition tests showed significant inhibitions by both free cefaclor and cefaclor-HSA conjugate. For basophil activation tests in patients having no specific IgE antibody, the CD63 expression level on basophils increased with incubations of free cefaclor. CONCLUSION: The most common manifestation of immediate hypersensitivity to cefaclor was anaphylaxis, most of which was mediated by IgE; however, a non-IgE mediated direct basophil activation mechanism was suggested in a subset of anaphylaxis patients.
Adolescent ; Adult ; Aged ; Anaphylaxis/*chemically induced/immunology ; Anti-Bacterial Agents/adverse effects/*immunology ; Antigens, CD63 ; Basophils/metabolism ; Cefaclor/*adverse effects/immunology ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Hypersensitivity, Immediate/chemically induced/diagnosis/*immunology ; Immunoglobulin E/*blood ; Immunoglobulin G/immunology ; Male ; Middle Aged ; Retrospective Studies ; Skin Tests ; Urticaria/chemically induced/diagnosis/immunology ; Young Adult

This case report describes a life-threatening anaphylaxis to fentanyl during radiofrequency ablation (RFA). A 50-year-old woman with hepatocellular carcinoma was admitted for RFA. She denied any history of adverse drug reactions or past adverse anesthetic reaction. Physical examination, vital signs, any laboratory findings were all within normal limits. Ten minutes after intravenous administration of 50 mcg of fentanyl before starting RFA, she developed generalized erythema and sudden onset of bronchospasm followed by respiratory arrest. Cardiopulmonary resuscitation (CPR) commenced with 100% oxygen and intravenous administration of epinephrine 1 mg. After 5 minutes of CPR, she had the return of spontaneous circulation. Chest X-ray revealed pulmonary edema which resolved over two days. She recovered completely and was discharged home. After six weeks, intradermal tests performed with fentanyl, remifentanyl, midazolam, and profopol. Among those, only fentanyl induced positive skin response. Fentanyl induced anaphylaxis was diagnosed for this case, and fentanyl was avoided in the subsequent general anesthesia for liver transplantation. This case suggested that fentanyl could induce anaphylaxis combined with uncommon comorbidities like pulmonary edema.
Administration, Intravenous ; Anaphylaxis ; Anesthesia, General ; Bronchial Spasm ; Carcinoma, Hepatocellular ; Cardiopulmonary Resuscitation ; Comorbidity ; Drug Toxicity ; Epinephrine ; Erythema ; Female ; Fentanyl ; Humans ; Intradermal Tests ; Liver Transplantation ; Midazolam ; Middle Aged ; Oxygen ; Physical Examination ; Pulmonary Edema ; Skin ; Skin Tests ; Thorax ; Vital Signs

Toxocariasis is an important cause of secondary hypereosinophilia in Korea. Here, we describe a rare case of toxocariasis presenting as transient global amnesia due to secondary hypereosinophilia. A 44-year-old male visited the Emergency Department (ED) for transient global amnesia. He ate raw cow liver and omasum 2 weeks before the ED visit. The initial peripheral blood eosinophil count was 15,250/µL and serologic test for serum specific IgG antibodies to Toxocara canis larval antigen was positive. Radiologic studies revealed multiple small embolic infarctions of brainwithout cardioembolic sources or vascular abnormalities. He was treated with systemic corticosteroid, and neither neurologic deficit nor motor deficit was left. In our current case, the patient have a history of frequently eating raw cow liver and omasum, and his total IgE level was extremely high (>5,000 IU/mL). Thus, the patient was diagnosed as having toxocariasis and secondary hypereosinophilia. Toxocariasis should be considered in the differential diagnosis in patients with eosinophilia and atypical neurologic symptoms, such as transient amnesia.
Adult ; Amnesia ; Amnesia, Transient Global* ; Antibodies ; Cerebral Infarction ; Diagnosis, Differential ; Eating ; Emergency Service, Hospital ; Eosinophilia ; Eosinophils ; Humans ; Immunoglobulin E ; Immunoglobulin G ; Infarction ; Korea ; Liver ; Male ; Neurologic Manifestations ; Omasum ; Serologic Tests ; Toxocara canis ; Toxocariasis*

PURPOSE: Prolonged recovery time of pulmonary function after an asthma exacerbation is a significant burden on asthmatics, and management of these patients needs to be improved. The aim of this study was to evaluate factors associated with a longer recovery time of pulmonary function among asthmatic patients hospitalized due to a severe asthma exacerbation. METHODS: We retrospectively reviewed the medical records of 89 patients who were admitted for the management of acute asthma exacerbations. The recovery time of pulmonary function was defined as the time from the date each patient initially received treatment for asthma exacerbations to the date the patient reached his or her previous best FEV1% value. We investigated the influence of various clinical and laboratory factors on the recovery time. RESULTS: The median recovery time of the patients was 1.7 weeks. Multiple linear regression analysis revealed that using regular inhaled corticosteroids (ICS) before an acute exacerbation of asthma and concurrent with viral infection at admission were associated with the prolonged recovery time of pulmonary function. CONCLUSIONS: The prolonged recovery time of pulmonary function after a severe asthma exacerbation was not shown to be directly associated with poor adherence to ICS. Therefore the results indicate that an unknown subtype of asthma may be associated with the prolonged recovery of pulmonary function time after an acute exacerbation of asthma despite regular ICS use. Further prospective studies to investigate factors affecting the recovery time of pulmonary function after an asthma exacerbation are warranted.
Adrenal Cortex Hormones ; Asthma* ; Humans ; Linear Models ; Medical Records ; Phenotype ; Prospective Studies ; Respiratory Function Tests ; Retrospective Studies

Idiopathic anaphylaxis is characterized by recurrent anaphylaxis without a known trigger. The coexistence of acute liver injury with idiopathic anaphylaxis is rare, even in cases of severe anaphylaxis such as shock. An unusual case involving repeated episodes of anaphylactic shock accompanied by acute liver injury is described here. A 36-year-old woman who experienced anaphylaxis due to an unknown cause was referred to our hospital because of marked elevations in her liver enzyme levels. After a thorough evaluation to determine the cause of the acute liver injury, viral infection, drug use, and autoimmune hepatitis were excluded. The episodes were accompanied by elevated liver enzymes, which suggested that this was a case of anaphylaxis followed by acute liver injury. The patient will have to use self-injectable epinephrine to prevent future hepatic failure.
Anaphylaxis ; Epinephrine ; Female ; Hepatitis, Autoimmune ; Humans ; Liver ; Liver Failure ; Shock

Antihistamines are commonly used to treat allergic disease, such as allergic rhinitis, urticaria, and angioedema. Although several previous reports describe hypersensitivity to antihistamines such as cetirizine and hydroxyzine, documented cases of chlorpheniramine hypersensitivity are extremely rare. Here, we report the case of a 45-year-old Korean woman who presented with urticaria after ingesting a cold medication. Over the previous 5 years, she had also experienced a food allergy to crab and shrimp, allergic rhinitis, and repeated urticaria after ingesting cold medication. Provocation with aspirin elicited generalized urticaria. Intravenous chlorpheniramine and methylprednisolone was injected for symptom control, but in fact appeared to aggravate urticaria. A second round of skin and provocation tests for chlorpheniramine and methylprednisolone showed positive results only for chlorpheniramine. She was diagnosed with aspirin intolerance and chlorpheniramine hypersensitivity, and was instructed to avoid these drugs. To date, this is the second of only two cases of chlorpheniramine-induced type I hypersensitivity with aspirin intolerance. Although the relationship between aspirin intolerance and chlorpheniramine-induced type I hypersensitivity is unclear, physicians should be aware of the possibility of urticaria or other allergic reactions in response to antihistamines.
Angioedema ; Aspirin ; Cetirizine ; Chlorpheniramine ; Cold Temperature ; Drug Hypersensitivity ; Female ; Food Hypersensitivity ; Histamine Antagonists ; Humans ; Hydroxyzine ; Hypersensitivity ; Hypersensitivity, Immediate ; Methylprednisolone ; Middle Aged ; Rhinitis ; Rhinitis, Allergic, Perennial ; Skin ; Urticaria

The Asthma Control Test (ACT) score is widely used in asthma clinics, particularly with the recent emphasis on achievement and maintenance of optimal asthma control. However, this self-assessment score does not always correspond with lung function parameters, leading to uncertainty about each patient's control status; therefore, we investigated the clinical characteristics that are associated with discrepant correlation between the ACT score and pulmonary function. The 252 adult asthmatic subjects were divided into 5 groups according to their changes in FEV1% predicted values and ACT scores between 2 consecutive visits three months apart. The data were retrospectively reviewed and several clinical variables were compared. Elderly, non-eosinophilic, non-atopic asthma patients were more likely to show paradoxical changes of pulmonary function and ACT score. Female patients were prone to report exaggerated changes of ACT score compared with baseline lung function and changes in FEV1 levels. This group was using more medications for rhinosinusitis. Male patients seemed less sensitive to changes in lung function. From these findings, we conclude that when assessing asthma control status, physicians should carefully consider patient age, gender, atopy status, blood eosinophil levels, and comorbidities along with their ACT scores and pulmonary function test results.
Adult ; Aged ; Asthma* ; Comorbidity ; Eosinophils ; Female ; Humans ; Lung ; Male ; Respiratory Function Tests ; Retrospective Studies ; Self-Assessment ; Uncertainty

Eosinophilic granulomatosis with polyangiitis (EGPA), also known as Churg-Strauss syndrome, is a rare systemic necrotizing vasculitis affecting small- to medium-sized vessels. EGPA is associated with severe asthma and eosinophilia. The most frequently involved organs are skin and peripheral nerves; however, EGPA may involve other organs, such as the gastrointestinal tract, kidney, and heart. Antineutrophil cytoplasm antibodies (ANCAs)-related abnormal immune reactions are known to be associated with EGPA, but only 30%-40% of patients have a positive marker of ANCA. ANCA-negative patients are at higher risk of cardiac involvement than ANCA-positive patients. Cardiac involvement is one of the leading causes of mortality and could be resistant to conventional treatment. Early treatment with steroid plus cyclophosphamide is important because it could give chances of restoration of cardiac function. For patients undergoing heart transplantation, we should consider the severity of cardiac disease and the presence of systemic diseases, including vasculitis. Here, we report a case of a 25-year-old EGPA patient with cardiac involvement who eventually received heart transplantation for progressive heart failure, although treated with systemic corticosteroid with cyclophosphamide. EGPA patients undergoing heart transplantion are rarely reported worldwide, and this is the first case report in Korea.
Adult ; Antibodies ; Antibodies, Antineutrophil Cytoplasmic ; Asthma ; Churg-Strauss Syndrome* ; Cyclophosphamide ; Cytoplasm ; Eosinophilia ; Eosinophils* ; Gastrointestinal Tract ; Heart ; Heart Diseases ; Heart Failure ; Heart Transplantation* ; Humans ; Kidney ; Korea ; Mortality ; Peripheral Nerves ; Skin ; Vasculitis

Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome-also known as drug-induced hypersensitivity syndrome-is an uncommon disease entity that manifests as fever, skin rash, blood cell abnormalities, lymphadenopathy, and often coagulopathy. Tigecycline is an antibiotic that is selectively used to treat complicated intra-abdominal and soft-tissue infections. Recently, a few cases of tigecycline-induced coagulopathy have been reported. Herein, we report a case of tigecycline-induced coagulopathy in a patient with DRESS syndrome. Both prothrombin time and activated partial thromboplastin time were abruptly exceeded beyond 180 seconds on day 6 of tigecycline treatment and normalized after discontinuation of tigecycline.
Blood Cells ; Drug Hypersensitivity Syndrome ; Eosinophilia* ; Exanthema ; Fever ; Humans ; Hypersensitivity ; Lymphatic Diseases ; Partial Thromboplastin Time ; Prothrombin Time