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황윤호 대한흉부심장혈관외과학회 1984 Journal of Chest Surgery (J Chest Surg) Vol.17 No.1
These two pulmonary actinomycosis cases had undergone right upper lobectomy and left lower lobectomy individually under the diagnosis of lung cancer and lung abscess. Recently pulmonary actinomycosis is very rare by the widespread use of antibiotics. In addition to clinical similarity to lung cancer and pulmonary tuberculosis, lack of suspicion and difficulty in obtaining adequate culture material also hamper the precise preoperative diagnosis. The purpose of this report is to review of our experiences and to enhance consideration of pulmonary actinomycosis.
황윤호 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.3
From June 1983 to September 1984, the pleural biopsies with Cope needle were performed at department of thoracic and cardiovascular surgery, Pusan Paik Hospital, Inje college, on 78 patients for exudative pleural effusion caused by various conditions. These results were analyzed clinically and summarized as follows: 2. The accuracy of pleural biopsy was 69.2% [54 of 78 patients]. The accuracy represented by ratio for the number of biopsy was 63.5% [54 of 85 biopsies]. 3. Among 61 patients of tuberculosis or malignancy, 37 [60.7%] were confirmed by pleural biopsy. 4. Tuberculosis was diagnosed in 48 patients, in 26[54.2%] out of these by pleural biopsy alone, in 3[6.2%] by pleural biopsy and isolation of AFB, in 2[4.2%] by pleural biopsy and operation, in 4[8.3%] by isolation of AFB, in 2[4.2%] by operation, and in 11[22.9%] clinically. 5. Among 13 patients of malignancy, 4[30.8%] were diagnosed by cytology alone, 4[30.8%] by pleural biopsy and cytology alone, 4[30.8%] by pleural biopsy and cytology, 1[7.7%] by pleural biopsy alone, 1[7.7%] by pleural biopsy and operation, and remained 3 by operation, lymph node biopsy, or bronchoscopy respectively. 6. False positive of clinical diagnosis was 12.5% for tuberculosis and 28.6% for malignancy. In pathological diagnosis there was no false positive. So specificity of pleural biopsy was very high. But false negative of pleural biopsy was 29.2% for tuberculosis and 46.2% for malignancy. 7. 4 cases[5.1%] of minimal pneumothorax were in the early series.
플라즈마-초음파 자극에 의한 화장품의 피부 침투 증진 연구
황윤호,조혜연,박유진,장휘진,박상효,기재홍,Yoonho Hwang,Hyeyoun Cho,Yujin Park,Hwijin Jang,Sanghyo Park,Jaehong Key 대한의용생체공학회 2023 의공학회지 Vol.44 No.4
The demand for skincare has increased due to the end of the COVID-19 pandemic, leading to a focus on skincare devices and technologies designed to improve the delivery of cosmetics. Among these technologies, skincare medical devices that utilize plasma therapy (Plasma) and sonophoresis (Sono) are commonly used in dermatology clinics. However, there is still a lack of quantitative analysis for transdermal absorption effects of Plasma and Sono skincare medical devices. In this study, we quantified enhanced transdermal absorption effects of Plasma and Sono devices through in-silico and ex-vivo studies. The Sono treatment demonstrated an increased transdermal absorption effect, showing a 10~13% difference in penetration compared to the control group in the in-silico experiment, and 159% and 184% increase in the ex-vivo experiment. The Plasma treatment revealed increased transdermal absorption effects, with a 1.0~2.5% penetration difference in the in-silico experiment, and a 124% increase in the ex-vivo experiment compared to the control group. We also observed a synergistic effect from the combined treatment of Plasma and Sono, as indicated by the highest increases of 197% and 242% in penetration. Furthermore, we have determined the optimal device settings and treatment conditions for Plasma-Sono skincare medical devices. Notably, higher on/off durations (Intensity levels) and longer Sono treatments resulted in greater transdermal absorption effects.
황윤호 대한흉부심장혈관외과학회 1984 Journal of Chest Surgery (J Chest Surg) Vol.17 No.2
Bronchogenic cyst and pericardial diverticulum are relatively infrequent respectively, but they have been detected more commonly with the increasing popularity of the routine and mass survey examination of the chest. A 31 year-old male was admitted for the evaluation of productive cough and two mass lesions in left side on the chest films and bronchogram. Exploratory thoractomy revealed pericardial diverticulum and bronchogenic cyst, which were confirmed by pathologic examination. We are willing to report this combined case which was treated uneventfully by left lower lobectomy and diverticulectomy.
황윤호,최강주,조광현 인제대학교 1999 仁濟醫學 Vol.20 No.1
선천성 관상동정맥루는 관상동맥이 정상적으로 대동맥에서 기시하지만 심방, 심실 또는 폐동맥, 관상정맥동, 상공정맥으로 이어지는 길이 있는 비교적 드문 질환으로 임상적인 증세가 없는 경우가 많아 우연히 발견되어 수술하게 되는 것이 보통이다. 본원에서는 이러한 선천성관상동정맥루 3 예를 발견하고 심도자 검사와 심초음파 검사를 통하여 우관상동맥과 우심실 사이의 연결 부위를 확인하여 성공적으로 수술하게 되었기에 보고하는 바이다. We perfomed cardiac operations on 3 patients with congenital coronary arteriovenous fistulas. The diagnosis was confirmed by coronary artery angiography and echocardiography. There was an aneurysmal dilated right coronary artery normally originated from aorta and anomalous fistulous connection from right coronary artery to anterior or inferior wall of right ventricle. The artery was terminated with an aneurysmal dilation in the case 3. The fistula was closed in the right ventricle through the right atrial incision under cardiopulmonary bypass.