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이양근,백흉선,이충섭,이용철,이정호 의과학연구소 1991 全北醫大論文集 Vol.15 No.1
The changes of symptom grade, peripheral eosinophil counts, specific IgE levels, allergen skin test, histamine provocation test(HPT), and cell mediated immunity before and during immunotherapy were observed in 36 bronchial asthmatics and 10 healthy persons. Immunotherapy was performed with "SDV, HDM, Alavac-SHDM, I.e., mistures of multiple allergens specific for each patient. The clinical grade was improved by immunotherapy. The peripheral eosinophil counts significantly decreased by immunotherapy, but no significant difference was observed among the 6month-1 year, or over 3 years groups. The wheal size measured by prick test with specific allergens decreased by immunotherapy, but no statistically significant difference was observed among each group. All specific IgE levels measured by RAST showed either equal or decreased levels compared with the initial level of specific IgE measured before immunotherapy. When HPT was performed with histamine at a concentration of 2mg/ml and 5mg/ml, no treatment group among bronchial asthmatics showed a higher positive rate and progressively decreased during immunotherapy. The mean antigen score obtained by Multitest CMI skin test for cell mediated immunity showed no significant differences among healthy, preimmunotherapy, and immunotherapy groups.
이양근 의과학연구소 1989 全北醫大論文集 Vol.13 No.2
Bronchial challenge of allergen(ovalbumin)-sensitized guinea pigs induced a triphasic reduction in specific airways conductance (sGaW) with maximal reductions being observed at 2, 17 and 72hr. accompanied by infiltration of the airways with neutrophils at 17hr. and eosinophils at 17 and 72hr. Nedocromil sodium(100mg m^-1) inhaled before challenge inhibited the 2 and 17hr. sGaw response and the neutrophil influx. When inhaled 6hr. after challenge, Nedocromil inhibited the 17hr. sGaw response but not neutrophil influx. The sGaw response and eosinophil accumulation at 72hr. was also inhibited by Nedocromil given at this time. We suggest that Nedocromil sodium inhibit early and late asthmatic reacion and cellular infiltration provoked by allergen challenged guinea-pigs, and being of action of anti-asthmatic drug.
이양근,이흥범,이용철,김원호,고재기 의과학연구소 1996 全北醫大論文集 Vol.20 No.2
1. 목적 : 폐암의 치료 목적으로 폐엽 절제술 혹은 전폐 절제술을 받은 환자에서 수술 후 4주에 운동부하 폐기능 검사를 시행하여 폐기능의 변화와 운동에 대한 반응 및 FEV₁과 Vo₂max 와의 상관성을 평가하고자 하였다. 2. 폐암 환자 20명을 대상으로 폐절제 전, 절제 후 4주에 Sensor Medics 사의 model No. 2900 자전거 작업계를 이용하여 incremental exercise를 실시하여 정상인과 수술 전, 수술 전후, 그리고 폐엽 절제군과 전폐 절제군의 결과를 비교하였다. 3. 결과 : 1) 폐암에 의한 폐절제 군에서는 수술 전 군에 비해 FEV₁,FVC, Vo₂max 와 VEmax의 유의있는 감소를 보였으며 전폐 절제시 폐엽절제시에 비해 더욱 감소하였다. 2) 수술 후 전폐 절제군에서 폐엽 절제술에 비하여 FEV₁,FVC, Vo₂max 등은 감소하는 경향을 보였으며 VEmax는 유의있는 감소를 보였다. 3) FEV₁의 감소 정도와 Vo₂max의 감소 정도 간에는 유의한 상관성을 보이지 않았다. 4. 결론 : 전폐 절제술이나 폐엽 절제술이 시행된 환자에서 절제 후 4주 에는 FEV₁,FVC, Vo₂max 와 VEmax의 유의있는 감소를 보였으나 FEV₁과 Vo₂max 의 감소 정도간에는 유의한 상관성을 보이지 않았다. 이는 FEV₁이 운동능력을 반영하는 예견인자로서는 부적절한 것으로 생각된다.
경피적 세흡인침과 절단침을 이용한 흉곽내 병변의 진단적 가치에 대한 연구
이양근,곽재용,송정선,김재헌,유관희,이용철,박성광,백홍선,강성귀 의과학연구소 1996 全北醫大論文集 Vol.20 No.1
Percutaneous needle biopsy is most reliabel noninbasive method of obtaining the confirm diagnosis of peripheral pulmonary nodule. Needle aspiration combined with cytologic examination is being used with increasing frequency in the diagnosis of pulmonary nodules and masses. Percutaneous needle lung biopsy way done in pulmonary or mediastinal lesions using 19 Gauge fine aspiration needle or 14 Gauge cutting needle, and the results were compared with respect to diagnostic accuracy and complications. Over a periods of recent ten years,476 patients who had localized pulmonary lesions and underwent percutaneous needle lung aspiration and biopsy using 19 Gauge fine aspiration needle or 14 Gauge cutting needle. The age distribution of the patients was from sixteen to eighty-one years old. Among 467 patients, 337 patients were male and 130 patients were female. In 244 patients, the lesion were less than 4cm in largest diameter, and in 223 patients, the lesion were larger than 4cm, but the size of the lesion was not correlated with malignancy. Diagnosic yields of the 14 Gauge cutting needle and the 19 Gauge fine needle were 88.3% and 76.8% respectively. Success rate of benign and malignant lesion were more higher in 14 Gauge cutting needle than 19 Gauge fine aspiration needle. Common diseases were primary lung cancer, tuberculoma, abscess in order of frequency. The complications of procedure were mild pneumothorax in ten patients, mild hemoptysis in six patients and subcutaneous emphysema in one patients. With Cutting needle and aspiration needle, complication rate were 2.73% and 2.36%, respecitvely. Percutaneous needle lung biopsy with cutting needle under the chest computed tomogram and biplane fluroscopy had lower complication rate and high diagnostic success rate for the intrathoracic lesions.