1.Clinical trial of oral administration of Bifidobacterium longum in dogs with atopic dermatitis
Kang-Il LEE ; Taesik YUN ; Junsang HAM ; Wan-Kyu LEE ; Ji-Houn KANG ; Mhan-Pyo YANG ; Byeong-Teck KANG
Korean Journal of Veterinary Research 2020;60(1):19-24
This study assessed the effects of probiotics in canine atopic dermatitis (AD). We enrolled 11 client-owned dogs with AD and randomly allocated them to two groups. The probiotics group (n = 7) was prescribed with Bifidobacterium longum while the control group (n = 4) received a placebo powder once a day for 12 weeks. In both groups, the degree of skin lesions was evaluated based on the Canine Atopic Dermatitis Extent and Severity Index (CADESI)-4. We also measured the transepidermal water loss (TEWL). We assessed pruritus severity using the pruritus visual analog scale (PVAS). Alteration of consumed drug doses was converted into medication scores. All the evaluation indices were surveyed every 4 weeks. In the probiotics group, there was a significant decrease in the CADESI-4 score at 4, 8, and 12 weeks compared to that of the baseline score (p < 0.05). There was no significant difference in TEWL, PVAS, and medication score at each time point and between groups. Although these results showed that Bifidobacterium longum did not reduce pruritus, TEWL, and the dosage of drugs for canine AD, it was effective in improving skin lesions, therefore, probiotics could be considered in canine AD with severe skin symptoms.
2.Efficient Utilization of Korean Medical Fungal Pathogen Resource Bank for Clinical Research
Jayoung KIM ; Junsang OH ; Gi Ho SUNG ; Hyeyoung LEE ; Ji Seon CHOI ; Sangheun LEE ; Minbum KIM ; Sun Young CHOI
Korean Journal of Medical Mycology 2019;24(3):69-78
A “pathogen resource†contains information about pathogens (e.g., bacteria, fungi, viruses, and protozoa) and microbial derivatives (e.g., DNA, RNA, plasmid, clone, and cDNA). Pathogen resources are important for their potential use in healthcare research because they contain clinical and epidemiological information that is different from microbial resources. In October 2014, the “Nagoya Protocol†on access and benefit-sharing with the Convention on Biological Diversity was enacted to restrict the movement of transboundary pathogens and protect the natural pathogen resources of each country. On July 2017, the Korean Medical Fungal Pathogen Resource Bank (KMFRB) was established to secure, discover, and develop biological resources focused on medical fungi. KMFRB has since been operating under the National Culture Collection for Pathogens of the National Institute of Health based on the Act No. 13992. This report aims to provide general information regarding KMFRB and suggest efficient ways to utilize human fungal pathogen resources for clinical research.
3.Effect of arthrocentesis on the clinical outcome of various treatment methods for temporomandibular joint disorders
Chang Woo KIM ; Sung Jae LEE ; Euy Hyun KIM ; Dong Keon LEE ; Mong Hun KANG ; In Seok SONG ; Sang Ho JUN
Maxillofacial Plastic and Reconstructive Surgery 2019;41(1):44-
BACKGROUND:
We evaluated the improvement of pain and the increase in mouth opening after temporomandibular joint arthrocentesis and the possible association with various factors such as previous splint treatment, medication, and diagnosis.
RESULTS:
We studied 57 temporomandibular joint disorder patients who underwent arthrocentesis at Korea University Anam Hospital. These patients (24 males and 33 females, aged between 15 and 76 years) underwent arthrocentesis that was performed by one surgeon. The degree of mouth opening (assessed using the maximum mouth opening: MMO) and pain (assessed using the visual analog scale: VAS) were assessed pre- and post-arthrocentesis. The study also investigated whether treatment modalities other than arthrocentesis (medication and appliance therapy) were performed. Statistical analysis revealed that there was a significant difference in mouth opening and pain after temporomandibular joint arthrocentesis. Preoperative appliance therapy affected the results of arthrocentesis, but it was not statistically significant. With regard to pain relief, preoperative diagnosis did not show a significant difference. However, with regard to maximum mouth opening, patients with disc displacement without reduction with limited mouth opening (closed lock) showed the highest recovery (11.13 mm).
CONCLUSION
The average of MMO increase after arthrocentesis was 9.10 mm, and patients with disc displacement without reduction with locking (closed lock) showed most recovery in maximum mouth opening and it was statistically significant. The average pain relief of patients after arthrocentesis was 3.03 in the VAS scale, and patients using anterior repositioning splint (ARS) preoperatively showed the most pain relief.
4.Preliminary study on the efficacy of xerostomia treatment with sialocentesis targeting thyroid disease patients given radioiodine therapy
Euy Hyun KIM ; Dong Keon LEE ; Chang Woo KIM ; In Seok SONG ; Sang Ho JUN
Maxillofacial Plastic and Reconstructive Surgery 2019;41(1):39-
BACKGROUND:
Radioiodine therapy has been widely used for thyroid disease patients, but hyposalivation and xerostomia may occur in 10~30% of patients. Sialocentesis is a procedure that removes inflammatory substances in the salivary duct and expands the duct for the secretion and delivery of saliva. In this study, thyroid disease patients treated with radioactive iodine were selected among the patients with xerostomia who visited the hospital, and the effect of sialocentesis was compared and analyzed. And then, comparison between the radioiodine therapy-experienced group and the non-radioiodine therapy-experienced group was conducted.
RESULTS:
In this study, we studied xerostomia patients who underwent radioiodine therapy due to thyroid diseases and who underwent sialocentesis at the Korea University Anam Hospital. Sialocentesis is conducted by one surgeon. The study also compares the clinical symptoms before and after the surgery. After the procedure, the discomfort due to xerostomia was reduced, and the symptom was improved effectively.
CONCLUSIONS
The results of this study showed that sialocentesis has a clinical effect in the treatment of xerostomia, which is a side effect of radioiodine therapy. In addition, the possibility of further clinical application of sialocentesis in the future is found.
5.Sialolithotomy of the submandibular duct using sialendoscopy
Dong Keon LEE ; Euy Hyun KIM ; Chang Woo KIM ; Mong Hun KANG ; In Seok SONG ; Sang Ho JUN
Maxillofacial Plastic and Reconstructive Surgery 2019;41(1):24-
BACKGROUND:
Conventionally, indirect radiography has been used to diagnose salivary gland diseases. However, with the development of sialendoscopy, diagnosis and treatment of salivary gland diseases have become more effective. Herein, we report a case of sialolithotomy treated with sialendoscopy and compare it with the existing methods through a literature review.CASE PRESENTATION: Two patients with a foreign body sensation under the tongue and dry mouth visited the Anam Hospital, Korea University. Radiographic examination revealed salivary stones inside the right Wharton duct, and the patients underwent sialolithotomy under local or general anaesthesia. The stones were totally removed, and there were no postoperative complications such as bleeding or pain.
CONCLUSION
The development of sialendoscopy has enabled better definitive diagnosis of salivary gland diseases compared with the conventional methods; better treatment outcomes can be obtained when sialendoscopy is used in appropriate cases.
6.Identification and Antifungal Susceptibility Profiles of Cyberlindnera fabianii in Korea
Ji Hyun PARK ; Junsang OH ; Hyunkyu SANG ; Bhushan SHRESTHA ; Hyeyoung LEE ; Jehyun KOO ; Sung Il CHO ; Ji Seon CHOI ; Min Ha LEE ; Jayoung KIM ; Gi Ho SUNG
Mycobiology 2019;47(4):449-456
Invasive fungal infections caused by Cyberlindnera fabianii have recently increased. However, biochemical kits such as API 20 C AUX and Vitek-2C have misidentified this species as other Candida spp. such as C. pelliculosa or C. utilis due to no information of Cy. fabianii in yeast database. During our 2016–2017 surveys, eleven isolates of Cy. fabianii were obtained in International St. Mary's Hospital in Korea. Here, we describe its morphological and molecular characteristics and tested its antifungal susceptibility against nine antifungal agents. The sequences of the ITS region and the D1/D2 region of LSU revealed 100% identity with the sequences of Cy. fabianii. In comparison with the results from MALDI-TOF mass spectrometry, we found that Cy. fabianii can be distinguished from other species. In antifungal susceptibility test, voriconazole and echinocandins exhibited good antifungal activities against the majority of Cy. fabianii isolates despite the absence of standard criteria.
7.Clinical characteristics and recurrence-related factors of medication-related osteonecrosis of the jaw.
Mong Hun KANG ; Dong Keon LEE ; Chang Woo KIM ; In Seok SONG ; Sang Ho JUN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2018;44(5):225-231
OBJECTIVES: The purpose of this study was to investigate the demographic and clinical characteristics of patients with medication-related osteonecrosis of the jaw (MRONJ) and to elucidate factors affecting recurrence in surgical treatment. MATERIALS AND METHODS: A total of 51 patients who were diagnosed with MRONJ were analyzed according to demographic and clinical features and treatment results through a retrospective chart review from 2013 to 2017 in the Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul in Korea. RESULTS: Alendronate composed the majority of medication doses (55.6%), followed by ibandronate (20.0%), risedronate (15.6%), and zoledronate (6.7%). Forty patients (88.9%) were given oral medication, and five patients (11.1%) were intravenously treated, and the mean duration of medication use was 61.1±42.9 months. A total of 10 patients (22.2%) had a drug holiday before MRONJ-induced dental treatment lasting an average of 6.8±7.0 months. MRONJ occurred 2.7 times more in the mandible, with 41 cases (73.2%) occurring in the mandible and 15 cases (26.8%) occurring in the maxilla, and the prevalence of affected posterior parts (premolar-molar) was six times greater than that of the anterior parts (incisor-canine) (48 cases vs 8 cases, 85.7% vs 14.3%). The most common dental cause of MRONJ was tooth extraction (69.6%). Regarding recurrence, there was no statistical difference in recurrence rate according to either site or stage. However, recurrence occurred in 4 out of 34 cases (11.8%) in the primary closure group and 9 out of 20 cases (45.0%) in the secondary healing group, and there was a statistical difference with respect to closure technique. CONCLUSION: The identified risk factors in patients taking bone resorption inhibitors can aid dental clinicians in ensuring prevention and proper treatment of MRONJ.
Alendronate
;
Bone Density Conservation Agents
;
Holidays
;
Humans
;
Jaw*
;
Korea
;
Mandible
;
Maxilla
;
Osteonecrosis*
;
Prevalence
;
Recurrence
;
Retrospective Studies
;
Risedronate Sodium
;
Risk Factors
;
Seoul
;
Surgery, Oral
;
Surgical Procedures, Operative
;
Tooth Extraction
8.Association between Health Information Technology and Case Mix Index.
Young Taek PARK ; Junsang LEE ; Jinhyung LEE
Healthcare Informatics Research 2017;23(4):322-327
OBJECTIVES: Health information technology (IT) can assist healthcare providers in ordering medication and adhering to guidelines while improving communication among providers and the quality of care. However, the relationship between health IT and Case Mix Index (CMI) has not been thoroughly investigated; therefore, this study aimed to clarify this relationship. METHODS: To examine the effect of health IT on CMI, a generalized estimation equation (GEE) was applied to two years of California hospital data. RESULTS: We found that IT was positively associated with CMI, indicating that increased IT adoption could lead to a higher CMI or billing though DRG up-coding. This implies that hospitals' revenue could increase around $40,000 by increasing IT investment by 10%. CONCLUSIONS: The positive association between IT and CMI implies that IT adoption itself could lead to higher patient billings. Generally, a higher CMI in a hospital indicates that the hospital provides expensive services with higher coding and therefore receives more money from patients. Therefore, measures to prevent upcoding through IT systems should be implemented.
California
;
Clinical Coding
;
Diagnosis-Related Groups*
;
Health Personnel
;
Humans
;
Investments
;
Medical Informatics*
9.New Records of Xylaria Species in Korea: X. ripicola sp. nov. and X. tentaculata.
Chang Sun KIM ; Jong Won JO ; Young Nam KWAG ; Soon Ok OH ; Sle gee LEE ; Gi Ho SUNG ; Jae Gu HAN ; Junsang OH ; Bhushan SHRESTHA ; Sang Yong KIM ; Chang Ho SHIN ; Sang Kuk HAN
Mycobiology 2016;44(1):21-28
During a Korean mushroom diversity survey from 2011 to 2014, we found one new Xylaria species (X. ripicola sp. nov.) and one Xylaria species that had not been previously observed in Korea (X. tentaculata). To confirm the phylogenetic placement of the new species, we conducted a phylogenetic investigation based on internal transcribed spacer regions of ribosomal DNA sequences. Additionally, the new species, X. ripicola, was subsequently analyzed for RNA polymerase II subunit sequences. We also evaluated the macroscopic and microscopic features of this species. Herein, X. ripicola is described as a new species that was collected from a natural beach habitat and X. tentaculata is formally reported as newly found in Korea.
Agaricales
;
Ascomycota
;
Classification
;
DNA, Ribosomal
;
Ecosystem
;
Korea*
;
Phylogeny
;
RNA Polymerase II
10.Feasibility of three-dimensional reconstruction and automated measurement of fetal long bones using 5D Long Bone.
Hyewon HUR ; Young Han KIM ; Hee Young CHO ; Yong Won PARK ; Hye Sung WON ; Mi Young LEE ; Bo Hyon YUN ; Kwang Hee LEE ; Sung Yoon KIM ; Junsang YOO ; Ja Young KWON
Obstetrics & Gynecology Science 2015;58(4):268-276
OBJECTIVE: To evaluate the feasibility of five-dimensional Long Bone (5D LB), a new technique that automatically archives, reconstructs images, and measures lengths of fetal long bones, to assess whether the direction of volume sweep influences fetal long bone measurements in three-dimensional (3D) ultrasound and 5D LB, and to compare measurements of fetal long bone lengths obtained with 5D LB and those obtained with conventional two-dimensional (2D) and manual 3D techniques. METHODS: This prospective study included 39 singleton pregnancies at 26+0 to 32+0 weeks of gestation. Multiple pregnancies, fetuses with multiple congenital anomalies, and mothers with underlying medical diseases were excluded. Fetal long bones of the lower extremities-the femur, tibia, and fibula were measured by 2D and 3D ultrasound, and 5D LB, by an expert and non-expert examiner. First, we analyzed the 3D ultrasound and 5D LB data according to 2 different sweeping angles. We analyzed intra- and inter-observer variability and agreement between ultrasound techniques. Paired t-test, interclass correlation coefficient, and Bland-Altman plot and Passing-Bablok regression were used for statistical analysis. RESULTS: There was no statistical difference between long bone measurements analyzed according to 2 different volume-sweeping angles by 3D ultrasound and 5D LB. Intra- and inter-observer variability were not significantly different among all 3 ultrasound techniques. Comparing 2D ultrasound and 5D LB, the interclass correlation coefficient for femur, tibia, and fibula was 0.91, 0.92, and 0.89, respectively. CONCLUSION: 5D LB is reproducible and comparable with conventional 2D and 3D ultrasound techniques for fetal long bone measurement.
Female
;
Femur
;
Fetus
;
Fibula
;
Humans
;
Mothers
;
Observer Variation
;
Pregnancy
;
Pregnancy, Multiple
;
Prospective Studies
;
Tibia
;
Ultrasonography

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