1.A Case of Syringocystadenoma Papilliferum of External Auditory Canal
Junhyuk JANG ; Sung Yool PARK ; Ha Young PARK ; Kyung Wook HEO
Korean Journal of Otolaryngology - Head and Neck Surgery 2021;64(6):444-447
Ceruminous glands are specialized sudoriferous glands located in the external auditory canal (EAC). Tumors originating from these ceruminous glands are rare lesions of EAC; in particular, syringocystadenoma papilliferum (SCAP) is an extremely rare ceruminous glands neoplasm to occur in the EAC. Although it is rare, the association of SCAP with tubular apocrine adenoma in the background of nevus sebaceous on the body, extremities, and scalp is well documented. In this article, we report on a 60-year-old male who presented a mass in EAC, which was surgically removed. The final diagnosis of SCAP was determined by histological analysis and the patient has been well without recurrence.
2.Comparison of the Efficacy, Safety and Patient Preference of the Phosphodiesterase Type 5 Inhibitors for the Patients with Erectile Dysfunction.
Changhee YOO ; Jinsung PARK ; Wansuk KIM ; Bumsik HONG ; Junhyuk HONG ; Tai Young AHN
Korean Journal of Urology 2007;48(2):219-225
PURPOSE: To compare the clinical efficacy and safety of three phosphodiesterase type 5 (PDE5) inhibitors in the treatment of mele erectile dysfunction according to patient preference. MATERIALS AND METHODS: Between January 2004 and August 2005, 113 male erectile dysfunctional patients were enrolled to this randomized, prospective, comparative, open-label, triple-crossover study of three PDE5 inhibitors. Patients were assigned to one of six medication schedules, and were prescribed a full dose of the drugs for 8 weeks, with a week of washout period prior to the next drug cycle. The International Index of Erectile Function (IIEF) scores and side effects related with each medication were obtained at the end of study. 48 patients finished all the medications, and completed the study with a global assessment questionnaire on their drug preference and reasons for that preference. RESULTS: The mean age of the patients was 54.6 (33-73) years. The mean pre-treatment IIEF and EF domain scores (+/-S.D.) were 28.2+/-14.7 and 10.6+/-6.6, respectively. The scores were significantly improved, to 47.9+/-14.6 and 19.9+/-6.6 with sildenafil, to 49.7+/-12.3 and 21.3+/-5.8 with vardenafil, and to 47.9+/-14.9 and 19.8+/-7.2 with tadalafil (p < 0.01). There were no significant differences in the scores or frequencies of side effects between the drugs. The preference percentages were 29.2, 29.2 and 35.4% for sildenafil, vardenafil and tadalafil, respectively. Patient preference was mainly due to improvement in erectile function (70.9%), such as rigid erection, prolonged erection and fast erection, and not to the infrequent rate of side effects (20.8%). CONCLISIONS: There were no significant differences of the efficacy and safety among the three PDE5 inhibitors. The preference for a drug for the treatment of erectile dysfunction was mainly related to the efficacy on the improvement of erectile function rather than the less frequent side effects.
Appointments and Schedules
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Erectile Dysfunction*
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Humans
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Male
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Patient Preference*
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Phosphodiesterase 5 Inhibitors*
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Phosphodiesterase Inhibitors
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Prospective Studies
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Questionnaires
3.Association of Arrhythmia in the Elderly Patients on Combination Therapy of CYP3A4 Substrates and Inhibitors with the Korean Claims Data
Tae Woo KIM ; Junhyuk CHANG ; Eunjung CHOO ; Rae Woong PARK ; Sukhyang LEE
Korean Journal of Clinical Pharmacy 2023;33(4):242-253
Background:
Arrhythmia due to QT prolongation is one of the most serious adverse events with drug interactions in the elderly. This study aimed to examine the incidence of arrhythmia in Korean elderly patients who administered both cytochrome P450 3A4 (CYP3A4) substrates and inhibitors.
Methods:
Patients using CYP3A4 substrate and inhibitor were selected from the 2017 elderly patient dataset (the Korean Health Insurance Review and Assessment Service - Aged Population Sample). Selection criteria were patients with a medication possession ratio over 80%, medication duration of at least 7 days, and a follow-up period of 3 months or more. The patient’s basic information is age, gender, health insurance type, and comorbidities. The top 50 drug pairs and comorbidity with high-incidence arrhythmia were presented.
Results:
In patien ts with drug combin ation s for over 7 days, there were 981 incidences of arrhythmia, and 351 incidences in those with combinations for over 30 days. The comorbidities of congestive heart failure and myocardial infarction had a significant association with incidence of arrhythmia. Among patients with 7 days or longer, the drug pairs [substrates-inhibitors] with significant adjusted odds ratio (aOR) were [propranolol-cimetidine] (aOR, 2.25; 95% confidence interval [CI], 1.66-3.04). Among patients with 30 days or longer, the drug pairs with significant aOR were [tramadolamiodarone] (aOR, 2.87; 95% CI, 1.97-4.19).
Conclusions
In elderly patients, the incidence of arrhythmia was high with drug interactions of CYP3A4 substrates and inhibitors. The comorbidity of congestive heart failure was the risk factor.
4.An Norovirus Outbreak at a Local Festival in Chungnam Korea
Hyunah LEE ; Donguk KIM ; Seongmin PARK ; Jongjin PARK ; Hae Sung NAM ; Jinha CHOI ; Junhyuk PARK
Journal of Bacteriology and Virology 2019;49(2):81-88
Noroviruses (NoV) are the major viral pathogen causing epidemic acute gastroenteritis and outbreaks of foodborne and waterborne illness. During the local festival in Chungnam province, group food poisoning occurred outbreak by NoV infections in Jan 2019. In this study, epidemiological analysis and molecular characterization were conducted such as genotyping, phylogeny. The prevalent genotypes of food poisoning events were NoV GII.3 and GII.17, and NoV GII.3 and GII.17 isolates of this study were completely matched in nucleotide sequence comparison of capsid gene region, respectively. In underground water and stream water, various multiple genotypes of noroviruses were detected including NoV GII.3, GII.8 and GI.4 in aquatic environment of the local festival site. Among 32 worker samples, various NoVs of five genotypes (GI.7, GI.8, GII.3, GII.8, GII.17) were detected in 12 samples and expected to causing NoV contaminated by exposure to groundwater. NoV genotype GII.3, which was detected from groundwater 2, was completely consistent with that of patients and workers. Therefore, groundwater within the local festival site could be main cause of food poisoning event. Because NoV outbreaks are caused by fecal to oral transmission, proper management of sewage purification facilities, groundwater and sanitary toilets is required for many visitors, and efforts are needed to maintain clean environment.
Base Sequence
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Capsid
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Chungcheongnam-do
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Disease Outbreaks
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Epidemiologic Studies
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Foodborne Diseases
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Gastroenteritis
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Genotype
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Groundwater
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Holidays
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Humans
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Korea
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Norovirus
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Phylogeny
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Rivers
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Sewage
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Water
5.Validation of Simultaneous Endoscopic Sinus Surgery and Transsphenoidal Surgery in Patients with Chronic Rhinosinusitis and Pituitary Tumors
Sung Yool PARK ; Seong Kook PARK ; Donghoo LEE ; Do Hun KIM ; Woo Jin KIM ; Chanhyeon PARK ; Junhyuk JANG ; Kyung Wook HEO
Korean Journal of Otolaryngology - Head and Neck Surgery 2020;63(11):505-510
Background and Objectives:
Transsphenoidal (TS) surgery for removal of pituitary lesions has become popular with improvements in diagnostic and treatment modalities, as well as endonasal and endoscopic methods, resulting in reduced complications. Rhinosinusitis (RS) is considered a risk factor for postoperative intracranial infections. Previously, we showed that concurrent TS surgery and endoscopic sinus surgery (ESS) yielded a favorable outcome in cases with pituitary lesions and RS. However, there seems to be a lack of consensus in performing simultaneous TS and ESS for patients with a pituitary lesion and RS. We would like to validate the feasibility of performing two operations concurrently.Subjects and Method We reviewed the medical records of 13 patients who underwent simultaneous TS surgery and ESS between 2007 and 2016. One patient underwent concurrent TS surgery and ESS twice due to the regrowth of pituitary macroadenoma and recurrence of RS.
Results:
There were only four minor nasal complications during the postoperative period, which were controlled with conservative treatment. Only one patient exhibited postoperative cerebrospinal fluid leakage and no patients experienced intracranial complications.
Conclusion
This study shows that it might be better to treat patients with pituitary lesion and RS simultaneously. Also, further studies with large cases would be necessary to manage these patients without intracranial complications.