1.Narcolepsy with Obstructive Sleep Apnea in a 4-Year-Old Korean Girl: A Case Report.
Soonhak KWON ; Kyungmi JANG ; Sukyung HWANG ; Minhyun CHO ; Hyeeun SEO
Journal of Korean Medical Science 2013;28(5):792-794
A 4-yr-old girl has exhibited severe snoring, restless sleep and increasing daytime sleepiness over the last 3 months. The physical examination showed that she was not obese but had kissing tonsils. Polysomnography demonstrated increased apnea-hypopnea index (AHI) of 5.2, and multiple sleep latency tests (MSLT) showed shortened mean sleep latency and one sleep-onset REM period (SOREMP). She was diagnosed with obstructive sleep apnea (OSA) and underwent tonsillectomy and adenoidectomy. After the surgery, her sleep became much calmer, but she was still sleepy. Another sleep test showed normal AHI of 0.2, the mean sleep latency of 8 min, and two SOREMPs. Diagnosis of OSA to be effectively treated by surgery and narcolepsy without cataplexy was confirmed. Since young children exhibiting both OSA and narcolepsy can fail to be diagnosed with the latter, it's desirable to conduct MSLT when they have severe daytime sleepiness or fail to get better even with good treatment.
Adenoidectomy
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Asian Continental Ancestry Group
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Child, Preschool
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Disorders of Excessive Somnolence/diagnosis
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Female
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Humans
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Methylphenidate/therapeutic use
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Narcolepsy/complications/*diagnosis/surgery
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Polysomnography
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Republic of Korea
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Sleep Apnea, Obstructive/*diagnosis/drug therapy/surgery
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Tonsillectomy
2.Value of the New 5-Tiered Prostate Cancer Grade Group System on Predicting Oncological Outcomes for Radical Prostatectomy Population in Korea
Minhyun CHO ; Sangjun YOO ; Juhyun PARK ; Chang Wook JEONG ; Ja Hyeon KU ; Cheol KWAK ; Hyeon Hoe KIM ; Min Chul CHO ; Hyeon JEONG
Korean Journal of Urological Oncology 2018;16(2):75-81
PURPOSE: We evaluated the prognostic value of the 5-tiered grade group in Korean patients who underwent radical prostatectomy. MATERIALS AND METHODS: Between 1996 and 2016, a number of 2,883 consecutive patients who underwent radical prostatectomy were included for the analysis. The impacts of biopsy and pathologic grade group on predicting biochemical recurrence (BCR) were assessed using multivariate analysis. Median follow-up duration was 49.0 months. RESULTS: Mean age was 66.5 years and prostate-specific antigen (PSA) was 11.8 ng/mL. Prostate cancer was locally advanced on magnetic resonance imaging in 13.4%. Biopsy grade group was as follows: 1 (46.8%), 2 (19.8%), 3 (14.2%), 4 (14.1%), and 5 (5.1%). Pathology stage was ≤T2 in 63.6%, T3a in 26.0%, and T3b/T4 in 10.4% patients. Pathologic grade was as follows: 1 (31.3%), 2 (37.9%), 3 (20.2%), 4 (4.7%), and 5 (5.1%). In multivariate analysis using biopsy-related variables, biopsy grade group (1, reference; 2, hazard ratio [HR], 1.771; p=0.001; 3, HR, 2.736; p < 0.001; 4, HR, 2.966; p < 0.001; 5, HR, 3.707; p < 0.001) was associated with BCR-free survival, PSA level and % positive core. In multivariate analysis using pathologic outcomes, pathologic grade group (1, reference; 2, HR, 1.882; p < 0.001; 3, HR, 3.352; p < 0.001; 4, HR, 3.890; p < 0.001; 5, HR: 3.118, p < 0.001) was associated with BCR-free survival in addition to pathologic stage and positive surgical margin. CONCLUSIONS: New 5-tiered grading system could be useful for predicting oncological outcomes in Korean patients although its role for distinguishing outcomes between patients with grade groups 3–5 need to be validated before wide application of this grade system in Korea.
Biopsy
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Follow-Up Studies
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Humans
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Korea
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Magnetic Resonance Imaging
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Multivariate Analysis
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Neoplasm Grading
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Pathology
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Prostate
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Prostate-Specific Antigen
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Prostatectomy
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Prostatic Neoplasms
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Recurrence
3.Involvement of Protein Kinase C-delta in Vascular Permeability in Acute Lung Injury.
Jong J AHN ; Jong P JUNG ; Soon E PARK ; Minhyun LEE ; Byungsuk KWON ; Hong R CHO
Immune Network 2015;15(4):206-211
Pulmonary edema is a major cause of mortality due to acute lung injury (ALI). The involvement of protein kinase C-delta (PKC-delta) in ALI has been a controversial topic. Here we investigated PKC-delta function in ALI using PKC-delta knockout (KO) mice and PKC inhibitors. Our results indicated that although the ability to produce proinflammatory mediators in response to LPS injury in PKC-delta KO mice was similar to that of control mice, they showed enhanced recruitment of neutrophils to the lung and more severe pulmonary edema. PKC-delta inhibition promoted barrier dysfunction in an endothelial cell layer in vitro, and administration of a PKC-delta-specific inhibitor significantly increased steady state vascular permeability. A neutrophil transmigration assay indicated that the PKC-delta inhibition increased neutrophil transmigration through an endothelial monolayer. This suggests that PKC-delta inhibition induces structural changes in endothelial cells, allowing extravasation of proteins and neutrophils.
Acute Lung Injury*
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Animals
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Capillary Permeability*
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Endothelial Cells
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Lung
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Mice
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Mortality
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Neutrophils
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Protein Kinase C-delta*
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Protein Kinases*
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Pulmonary Edema
4.Surgical Management of Sigmoid Volvulus: A Multicenter Observational Study
Keunchul LEE ; Heung-Kwon OH ; Jung Rae CHO ; Minhyun KIM ; Duck-Woo KIM ; Sung-Bum KANG ; Hyung-Jin KIM ; Hyoung-Chul PARK ; Rumi SHIN ; Seung Chul HEO ; Seung-Bum RYOO ; Kyu Joo PARK ;
Annals of Coloproctology 2020;36(6):403-408
Purpose:
This study aimed to evaluate real-world clinical outcomes from surgically treated patients for sigmoid volvulus.
Methods:
Five tertiary centers participated in this retrospective study with data collected from October 2003 through September 2018, including demographic information, preoperative clinical data, and information on laparoscopic/open and elective/emergency procedures. Outcome measurements included operation time, postoperative hospitalization, and postoperative morbidity.
Results:
Among 74 patients, sigmoidectomy was the most common procedure (n = 46), followed by Hartmann’s procedure (n = 23), and subtotal colectomy (n = 5). Emergency surgery was performed in 35 cases (47.3%). Of the 35 emergency patients, 34 cases (97.1%) underwent open surgery, and a stoma was established for 26 patients (74.3%). Elective surgery was performed in 39 cases (52.7%), including 21 open procedures (53.8%), and 18 laparoscopic surgeries (46.2%). Median laparoscopic operation time was 180 minutes, while median open surgery time was 130 minutes (P < 0.001). Median postoperative hospitalization was 11 days for laparoscopy and 12 days for open surgery. There were 20 postoperative complications (27.0%), and all were resolved with conservative management. Emergency surgery cases had a higher complication rate than elective surgery cases (40.0% vs. 15.4%, P = 0.034).
Conclusion
Relative to elective surgery, emergency surgery had a higher rate of postoperative complications, open surgery, and stoma formation. As such, elective laparoscopic surgery after successful sigmoidoscopic decompression may be the optimal clinical option.