1.A case of obstructive pneumonia due to fish vertebrae aspirated into both bronchi.
Eugene CHOI ; Wonmin HWANG ; Moonjun NA ; Wonyoung LEE
Korean Journal of Medicine 2003;65(Suppl 3):S762-S766
Foreign body aspiration occurs rarely in adults. Aspiration of foreign bodies into tracheobronchial tree commonly occurs by accident, and in most cases they get removed without delay. Sometimes, however, small foreign bodies that lodge in the peripheral airway are often asymptomatic initially and become symptomatic several years later. In these cases, unless a clear history of an aspiration event is obtained, it is difficult to even consider the aspiration as a cause of pneumonia. Foreign bodies were most frequently located in right lower lobe and usually aspirated unilaterally. A review of recent literature reveals only a few case reports of unilaterally aspirated foreign body in adults. We are reporting an adult case of obstructive pneumonia due to foreign bodies (fish vertebrae) aspirated into both bronchi at least 5 month prior to his hospitalization into our institute. Removal of the endobronchial foreign bodies was successfully accomplished by flexible bronchoscopy. The patient did not experience any complication and the pneumonia was completely resolved after removal of foreign bodies.
Adult
;
Bronchi*
;
Bronchoscopy
;
Foreign Bodies
;
Hospitalization
;
Humans
;
Pneumonia*
;
Spine*
2.A case of obstructive pneumonia due to fish vertebrae aspirated into both bronchi.
Eugene CHOI ; Wonmin HWANG ; Moonjun NA ; Wonyoung LEE
Korean Journal of Medicine 2003;65(Suppl 3):S762-S766
Foreign body aspiration occurs rarely in adults. Aspiration of foreign bodies into tracheobronchial tree commonly occurs by accident, and in most cases they get removed without delay. Sometimes, however, small foreign bodies that lodge in the peripheral airway are often asymptomatic initially and become symptomatic several years later. In these cases, unless a clear history of an aspiration event is obtained, it is difficult to even consider the aspiration as a cause of pneumonia. Foreign bodies were most frequently located in right lower lobe and usually aspirated unilaterally. A review of recent literature reveals only a few case reports of unilaterally aspirated foreign body in adults. We are reporting an adult case of obstructive pneumonia due to foreign bodies (fish vertebrae) aspirated into both bronchi at least 5 month prior to his hospitalization into our institute. Removal of the endobronchial foreign bodies was successfully accomplished by flexible bronchoscopy. The patient did not experience any complication and the pneumonia was completely resolved after removal of foreign bodies.
Adult
;
Bronchi*
;
Bronchoscopy
;
Foreign Bodies
;
Hospitalization
;
Humans
;
Pneumonia*
;
Spine*
3.Usefulness of the Medial Portal during Hip Arthroscopy.
Chan KANG ; Deuk Soo HWANG ; Jung Mo HWANG ; Eugene J PARK
Clinics in Orthopedic Surgery 2015;7(3):392-395
The current conventional portals for hip arthroscopic surgery are the anterior, anterolateral, and posterolateral portals. For lesions in the medial anteroinferior or posteroinferior portion of the hip, these portals provide insufficient access to the lesion and consequently lead to incomplete treatment. Thus, in such a situation, a medial portal approach might be helpful. However, operators have avoided this procedure because of the risk of injury to the obturator, femoral neurovascular structures, and the medial femoral circumflex artery. Thus, to overcome the disadvantages of the conventional method for medial lesions of the hip, we performed a cadaveric study to evaluate the technique, usefulness, and risk of the medial portal technique.
Aged
;
Arthroscopy/*instrumentation/*methods
;
Female
;
Hip Joint/*surgery
;
Humans
;
Male
;
Middle Aged
;
Patient Positioning
4.Efficacy and Safety of Sunitinib on Metastatic Renal Cell Carcinoma: A Single-Institution Experience.
Eugene HWANG ; Hyo Jin LEE ; Chong Koo SUL ; Jae Sung LIM
Korean Journal of Urology 2010;51(7):450-455
PURPOSE: We assessed the efficacy and safety of the tyrosine kinase inhibitor sunitinib in Korean patients with metastatic renal cell carcinoma (mRCC). MATERIALS AND METHODS: Between September 2007 and December 2009, all twenty-one patients who had mRCC with a clear-cell component were retrospectively reviewed. Sunitinib was administered orally at a dose of 50 mg daily until disease progression or intolerance to treatment occurred. The primary end point of this study was the objective tumor response assessed by Response Evaluation Criteria in Solid Tumors (RECIST), and the secondary end points were progression-free survival (PFS) and overall survival (OS) rates as well as assessment of adverse effects. RESULTS: After a median of 17.4 months (range, 5.7-33.1 months) of treatment, 11 patients (52.4%) had an objective response with a complete response in 1 patient (4.8%), and a partial response in 10 patients (47.6%) as the best tumor response. The median PFS was 13.4 months (95% confidence interval [CI], range, 12.3-14.5 months), and the median OS was 28.1 months (95% CI, 21.8-34.4 months). All patients experienced adverse events of some sort, but the studied treatment protocol was well tolerated and most patients experienced reversible grade 1 or 2 toxicities. CONCLUSIONS: Sunitinib was efficacious in the treatment of metastatic clear-cell RCC, and was well tolerated in Korean patients. Although sunitinib treatment-related adverse events such as hand-foot syndrome and facial/generalized edema were observed with a higher incidence than in Western trials, they were mainly mild to moderate, and readily managed.
Carcinoma, Renal Cell*
;
Clinical Protocols
;
Disease Progression
;
Disease-Free Survival
;
Edema
;
Hand-Foot Syndrome
;
Humans
;
Incidence
;
Neoplasm Metastasis
;
Protein-Tyrosine Kinases
;
Retrospective Studies
5.Efficacy and Safety of Sunitinib on Metastatic Renal Cell Carcinoma: A Single-Institution Experience.
Eugene HWANG ; Hyo Jin LEE ; Chong Koo SUL ; Jae Sung LIM
Korean Journal of Urology 2010;51(7):450-455
PURPOSE: We assessed the efficacy and safety of the tyrosine kinase inhibitor sunitinib in Korean patients with metastatic renal cell carcinoma (mRCC). MATERIALS AND METHODS: Between September 2007 and December 2009, all twenty-one patients who had mRCC with a clear-cell component were retrospectively reviewed. Sunitinib was administered orally at a dose of 50 mg daily until disease progression or intolerance to treatment occurred. The primary end point of this study was the objective tumor response assessed by Response Evaluation Criteria in Solid Tumors (RECIST), and the secondary end points were progression-free survival (PFS) and overall survival (OS) rates as well as assessment of adverse effects. RESULTS: After a median of 17.4 months (range, 5.7-33.1 months) of treatment, 11 patients (52.4%) had an objective response with a complete response in 1 patient (4.8%), and a partial response in 10 patients (47.6%) as the best tumor response. The median PFS was 13.4 months (95% confidence interval [CI], range, 12.3-14.5 months), and the median OS was 28.1 months (95% CI, 21.8-34.4 months). All patients experienced adverse events of some sort, but the studied treatment protocol was well tolerated and most patients experienced reversible grade 1 or 2 toxicities. CONCLUSIONS: Sunitinib was efficacious in the treatment of metastatic clear-cell RCC, and was well tolerated in Korean patients. Although sunitinib treatment-related adverse events such as hand-foot syndrome and facial/generalized edema were observed with a higher incidence than in Western trials, they were mainly mild to moderate, and readily managed.
Carcinoma, Renal Cell*
;
Clinical Protocols
;
Disease Progression
;
Disease-Free Survival
;
Edema
;
Hand-Foot Syndrome
;
Humans
;
Incidence
;
Neoplasm Metastasis
;
Protein-Tyrosine Kinases
;
Retrospective Studies
6.Inhibitory effect of Gastrodia elata Blume extract on alpha-melanocyte stimulating hormone-induced melanogenesis in murine B16F10 melanoma.
Eugene SHIM ; Eunju SONG ; Kyoung Sook CHOI ; Hyuk Joon CHOI ; Jinah HWANG
Nutrition Research and Practice 2017;11(3):173-179
BACKGROUND/OBJECTIVES: Gastrodia elata Blume (GEB), a traditional herbal medicine, has been used to treat a wide range of neurological disorders (e.g., paralysis and stroke) and skin problems (e.g., atopic dermatitis and eczema) in oriental medicine. This study was designed to investigate whether GEB extract inhibits melanogenesis activity in murine B16F10 melanoma. MATERIALS/METHOD: Murine B16F10 cells were treated with 0-5 mg/mL of GEB extract or 400 µg/mL arbutin (a positive control) for 72 h after treatment with/without 200 nM alpha-melanocyte stimulating hormone (α-MSH) for 24 h. Melanin concentration, tyrosinase activity, mRNA levels, and protein expression of microphthalmia-associated transcription factor (MITF), tyrosinase, tyrosinase-related protein (Trp)1, and Trp2 were analyzed in α-MSH-untreated and α-MSH-treated B16F10 cells. RESULTS: Treatment with 200 nM α-MSH induced almost 2-fold melanin synthesis and tyrosinase activity along with increased mRNA levels and protein expression of MITF, tyrosinase, Trp1 and Trp2. Irrespective of α-MSH stimulation, GEB extract at doses of 0.5-5 mg/mL inhibited all these markers for skin whitening in a dose-dependent manner. While lower doses (0.5-1 mg/mL) of GEB extract generally had a tendency to decrease melanogenesis, tyrosinase activity, and mRNA levels and protein expression of MITF, tyrosinase, Trp1, and Trp2, higher doses (2-5 mg/mL) significantly inhibited all these markers in α-MSH-treated B16F10 cells in a dose-dependent manner. These inhibitory effects of the GEB extract at higher concentrations were similar to those of 400 µg/mL arbutin, a well-known depigmenting agent. CONCLUSIONS: These results suggest that GEB displays dose-dependent inhibition of melanin synthesis through the suppression of tyrosinase activity as well as molecular levels of MITF, tyrosinase, Trp1, and Trp2 in murine B16F10 melanoma. Therefore, GEB may be an effective and natural skin-whitening agent for application in the cosmetic industry.
Arbutin
;
Dermatitis, Atopic
;
Gastrodia*
;
Herbal Medicine
;
Medicine, East Asian Traditional
;
Melanins
;
Melanoma*
;
Microphthalmia-Associated Transcription Factor
;
Monophenol Monooxygenase
;
Nervous System Diseases
;
Paralysis
;
RNA, Messenger
;
Skin
;
Skin Lightening Preparations
7.Dietary sodium intake in young Korean adults and its relationship with eating frequency and taste preference.
Eugene SHIM ; Ha Jung RYU ; Jinah HWANG ; Soo Yeon KIM ; Eun Jung CHUNG
Nutrition Research and Practice 2013;7(3):192-198
Dietary sodium intake is considered one of the major causal factors for hypertension. Thus, to control the increase of blood pressure and reduce the risk of hypertension-related clinical complications, a reduction in sodium intake is recommended. The present study aimed at determining the association of dietary sodium intake with meal and snack frequency, snacking time, and taste preference in Korean young adults aged 20-26 years, using a 125-item dish-frequency questionnaire. The mean dietary sodium intakes of men and women were 270.6 mmol/day and 213.1 mmol/day, which were approximately 310% and 245% of the daily sodium intake goal for Korean men and women, respectively. Dietary sodium intake was positively correlated with systolic blood pressure in the total group, and BMI in the total and men-only groups. In the total and men-only groups, those who consumed meals more times per day consumed more dietary sodium, but the number of times they consumed snacks was negatively correlated with dietary sodium intake in the total, men-only, and women-only groups. In addition, those who consumed snacks in the evening consumed more sodium than those who did so in the morning in the men-only group. The sodium intake was also positively associated with preference for salty and sweet taste in the total and women-only groups. Such a high intake of sodium in these young subjects shows that a reduction in sodium intake is important for the prevention of hypertension and related diseases in the future.
Adult
;
Aged
;
Blood Pressure
;
Eating
;
Female
;
Humans
;
Hypertension
;
Male
;
Meals
;
Surveys and Questionnaires
;
Snacks
;
Sodium
;
Sodium, Dietary
;
Young Adult
8.Serum Phospholipid Fatty Acids in Benign Breast Tumor and Breast Cancer.
Eugene SHIM ; Sei Hyun AHN ; You Jeong HWANG ; Yang Cha LEE-KIM
The Korean Journal of Nutrition 2009;42(3):213-220
Studies on the relationship between blood fatty acids and the risk of breast cancer have not yielded definite conclusions. The role of fatty acids in the development and progression of breast cancer is unclear. We conducted a case-control study to determine serum phospholipid fatty acid composition in benign breast tumor and breast cancer. Subjects consisted of 27 benign breast tumor and 68 breast cancer patients, and 28 matched controls. The levels of fatty acids were measured by gas chromatography. Higher arachidonic and palmitic acids were observed in breast cancer patients as compared with control and benign breast tumor patients. The percentage of total saturated fatty acids in breast cancer was higher than in control and benign breast tumor patients. The level of stearic acid was lower in benign breast tumor and breast cancer patients. Saturation index, the ratio of stearic to oleic acid, was lower in benign breast tumor and breast cancer patients compared to the control. Moreover, stearic acid was negatively and arachidonic acid was positively correlated with the cancer stage. In conclusion, our results support that serum phospholipid compositions of specific fatty acids are associated with the risk of benign breast tumor as well as breast cancer. Further studies are necessary to investigate mechanisms linked to the breast cancer etiology.
Arachidonic Acid
;
Breast
;
Breast Neoplasms
;
Case-Control Studies
;
Chromatography, Gas
;
Fatty Acids
;
Humans
;
Oleic Acid
;
Palmitic Acid
;
Palmitic Acids
;
Stearic Acids
9.Safety and side effect profile of Pfizer-BioNTech COVID-19 vaccination among healthcare workers: A tertiary hospital experience in Singapore.
See Ming LIM ; Hwang Ching CHAN ; Amelia SANTOSA ; Swee Chye QUEK ; Eugene Hern Choon LIU ; Jyoti SOMANI
Annals of the Academy of Medicine, Singapore 2021;50(9):703-711
INTRODUCTION:
Vaccination remains a key strategy to living endemically with COVID-19. The Pfizer-BioNTech COVID-19 vaccine was first granted interim authorisation for use in Singapore in December 2020. With overseas studies published about the safety and side effect profiles of mRNA COVID-19 vaccines focusing mainly on non-Asian populations, we described the side effects of Pfizer-BioNTech COVID-19 vaccination experienced by the healthcare workers (HCWs) in a tertiary hospital in Singapore.
METHODS:
Data were obtained from the Occupational Health Clinic (OHC) at the National University Hospital in Singapore, which monitored staff for any adverse effects within 30 minutes post vaccination on-site and any adverse effects after that. A cross-sectional study among the vaccinated HCWs was conducted using an online survey, which established basic demographics, histories of allergies or atopic disorders, and adverse events encountered after dose 1 and dose 2 of vaccination.
RESULTS:
No anaphylaxis was reported. Most common symptom was giddiness (32.7%) experienced by HCWs within 30 minutes. Adverse events attended post-vaccination by OHC were generally mild and self-limiting. From the survey, odds of experiencing an adverse event after dose 2 was significantly higher than after the first dose, especially for fever/chills (odds ratio [OR] 22.5). Fever/chills, injection site reactions, headache, aches and pains, and feeling unwell were significantly more common in HCWs below 60 years compared to those ≥60 years. An allergy to food (adjusted OR 2.7) and a history of eczema/sensitive skin (adjusted OR 2.6) were associated with a skin reaction not at injection site.
CONCLUSION
The side effects experienced after Pfizer-BioNTech COVID-19 vaccines are generally self-limiting and mild, with no anaphylaxis reported.
COVID-19
;
COVID-19 Vaccines
;
Cross-Sectional Studies
;
Health Personnel
;
Humans
;
SARS-CoV-2
;
Singapore/epidemiology*
;
Tertiary Care Centers
;
Vaccination
10.Risk of Diabetic Retinopathy between Sodium-Glucose Cotransporter-2 Inhibitors and Glucagon-Like Peptide-1 Receptor Agonists (Diabetes Metab J 2023;47:394-404)
Tzu-Yi LIN ; Eugene Yu-Chuan KANG ; Shih-Chieh SHAO ; Edward Chia-Cheng LAI ; Yih-Shiou HWANG
Diabetes & Metabolism Journal 2023;47(4):573-574