1.Comparison of Penetrating Keratoplasty and Descemet Stripping Automated Endothelial Keratoplasty in Eyes with Glaucoma Ahmed Valve implants
Yeonwoo CHO ; SoonWon YANG ; Doh Hoon CHUNG ; Seon Joo KIM ; You-Sook HWANG ; Choun-Ki JOO ; Yong-Soo BYUN ; So-Hyang CHUNG ; Hyun-Seung KIM
Journal of the Korean Ophthalmological Society 2022;63(3):242-250
Purpose:
To compare the clinical outcomes of penetrating keratoplasty (PKP) and Descemet stripping automated endothelial keratoplasty (DSAEK) in eyes with Glaucoma Ahmed Valve implants.
Methods:
The charts of 11 patients who underwent PKP and 11 who underwent DSAEK between February 2016 and June 2018 were retrospectively reviewed; all patients previously underwent Ahmed valve implant surgery. The best corrected visual acuity, intraocular pressure, and endothelial cell count were compared 1, 3, and 6 months after surgery. Graft rejection and graft failure were also evaluated during follow-up. The survival rates were compared using Kaplan–Meier survival analysis.
Results:
The difference in graft survival rates of the PKP and DSAEK groups was not significant (p = 0.295); however, graft failure occurred earlier in the PKP group (12.9 ± 10.1 vs. 18.8 ± 5.3 months). The postoperative best corrected visual acuity of the PKP group had improved at 1 (p = 0.027) and 3 (p = 0.017) months, while the DSAEK group showed significant improvement at 1, 3, and 6 months (all p = 0.005). Intergroup analysis showed better visual prognosis of the DSAEK group at 1, 3, and 6 months after surgery (p = 0.023, p = 0.007, and p = 0.004, respectively).
Conclusions
In our study, the two corneal transplantation methods did not have significantly different graft survival rates; however, graft failure occured later in the DSAEK group and the postoperative visual acuity was better than in the PKP group. Although further study is needed, performing DSAEK in patients with an Ahmed valve implant seems to be a good alternative to PKP.
2.Comparison of the Long-term Clinical Outcomes of Penetrating Keratoplasty Using a Manual Trephine and Femtosecond-Laser Trephination
Ha-Rim SO ; Seon-Joo KIM ; Choun-Ki JOO ; You-Sook HWANG ; Yong-Soo BYUN ; So-Hyang CHUNG ; Hyun-Seung KIM
Journal of the Korean Ophthalmological Society 2020;61(12):1424-1432
Purpose:
We compare the clinical outcomes of femtosecond-laser penetrating keratoplasty and penetrating keratoplasty performed using a manual trephine.
Methods:
The clinical outcomes of 21 eyes that underwent penetrating keratoplasty using a manual trephine and 29 eyes that underwent femtosecond-laser penetrating keratoplasty were compared in terms of best-corrected visual acuity, refractive and corneal astigmatisms, endothelial cell counts, and graft rejection and failure.
Results:
The best-corrected visual acuities measured 1, 3, 6, 12, and 18 months after surgery were logMAR 1.21, 1.28, 1.25, 1.14, and 1.43 for the manual trephine group and logMAR 0.82, 0.71, 0.78, 0.49, and 0.56 for the femtosecond-laser group; the latter group thus exhibited better visual acuity at all times. The refractive astigmatism values were 5.13, 6.35, 5.28, 5.18, and 6.36 diopters (D) for the manual trephine group and 6.09, 6.33, 5.14, 5.23, and 4.89 D for the femtosecond-laser group. The corneal astigmatism values were 5.40, 6.45, 6.30, 5.64, and 5.78 D for the manual trephine group and 6.17, 6.24, 5.72, 5.02, and 4.83 D for the femtosecond-laser group. The refractive astigmatism was significantly lower at 18 months after surgery and the corneal astigmatism was significantly lower at both 12 and 18 months after surgery in the femtosecond-laser group. None of endothelial cell count, graft rejection or failure rate, differed significantly between the two groups.
Conclusions
Femtosecond-laser-enabled keratoplasty affords better visual recovery, less refractive and corneal astigmatism, and better wound stability than does penetrating keratoplasty using a manual trephine.
3.Comparison of the Long-term Clinical Outcomes of Penetrating Keratoplasty Using a Manual Trephine and Femtosecond-Laser Trephination
Ha-Rim SO ; Seon-Joo KIM ; Choun-Ki JOO ; You-Sook HWANG ; Yong-Soo BYUN ; So-Hyang CHUNG ; Hyun-Seung KIM
Journal of the Korean Ophthalmological Society 2020;61(12):1424-1432
Purpose:
We compare the clinical outcomes of femtosecond-laser penetrating keratoplasty and penetrating keratoplasty performed using a manual trephine.
Methods:
The clinical outcomes of 21 eyes that underwent penetrating keratoplasty using a manual trephine and 29 eyes that underwent femtosecond-laser penetrating keratoplasty were compared in terms of best-corrected visual acuity, refractive and corneal astigmatisms, endothelial cell counts, and graft rejection and failure.
Results:
The best-corrected visual acuities measured 1, 3, 6, 12, and 18 months after surgery were logMAR 1.21, 1.28, 1.25, 1.14, and 1.43 for the manual trephine group and logMAR 0.82, 0.71, 0.78, 0.49, and 0.56 for the femtosecond-laser group; the latter group thus exhibited better visual acuity at all times. The refractive astigmatism values were 5.13, 6.35, 5.28, 5.18, and 6.36 diopters (D) for the manual trephine group and 6.09, 6.33, 5.14, 5.23, and 4.89 D for the femtosecond-laser group. The corneal astigmatism values were 5.40, 6.45, 6.30, 5.64, and 5.78 D for the manual trephine group and 6.17, 6.24, 5.72, 5.02, and 4.83 D for the femtosecond-laser group. The refractive astigmatism was significantly lower at 18 months after surgery and the corneal astigmatism was significantly lower at both 12 and 18 months after surgery in the femtosecond-laser group. None of endothelial cell count, graft rejection or failure rate, differed significantly between the two groups.
Conclusions
Femtosecond-laser-enabled keratoplasty affords better visual recovery, less refractive and corneal astigmatism, and better wound stability than does penetrating keratoplasty using a manual trephine.
4.Low-Tube-Voltage CT Urography Using Low-Concentration-Iodine Contrast Media and Iterative Reconstruction: A Multi-Institutional Randomized Controlled Trial for Comparison with Conventional CT Urography.
Sang Youn KIM ; Jeong Yeon CHO ; Joongyub LEE ; Sung Il HWANG ; Min Hoan MOON ; Eun Ju LEE ; Seong Sook HONG ; Chan Kyo KIM ; Kyeong Ah KIM ; Sung Bin PARK ; Deuk Jae SUNG ; Yongsoo KIM ; You Me KIM ; Sung Il JUNG ; Sung Eun RHA ; Dong Won KIM ; Hyun LEE ; Youngsup SHIM ; Inpyeong HWANG ; Sungmin WOO ; Hyuck Jae CHOI
Korean Journal of Radiology 2018;19(6):1119-1129
OBJECTIVE: To compare the image quality of low-tube-voltage and low-iodine-concentration-contrast-medium (LVLC) computed tomography urography (CTU) with iterative reconstruction (IR) with that of conventional CTU. MATERIALS AND METHODS: This prospective, multi-institutional, randomized controlled trial was performed at 16 hospitals using CT scanners from various vendors. Patients were randomly assigned to the following groups: 1) the LVLC-CTU (80 kVp and 240 mgI/mL) with IR group and 2) the conventional CTU (120 kVp and 350 mgI/mL) with filtered-back projection group. The overall diagnostic acceptability, sharpness, and noise were assessed. Additionally, the mean attenuation, signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and figure of merit (FOM) in the urinary tract were evaluated. RESULTS: The study included 299 patients (LVLC-CTU group: 150 patients; conventional CTU group: 149 patients). The LVLC-CTU group had a significantly lower effective radiation dose (5.73 ± 4.04 vs. 8.43 ± 4.38 mSv) compared to the conventional CTU group. LVLC-CTU showed at least standard diagnostic acceptability (score ≥ 3), but it was non-inferior when compared to conventional CTU. The mean attenuation value, mean SNR, CNR, and FOM in all pre-defined segments of the urinary tract were significantly higher in the LVLC-CTU group than in the conventional CTU group. CONCLUSION: The diagnostic acceptability and quantitative image quality of LVLC-CTU with IR are not inferior to those of conventional CTU. Additionally, LVLC-CTU with IR is beneficial because both radiation exposure and total iodine load are reduced.
Commerce
;
Contrast Media*
;
Humans
;
Iodine
;
Noise
;
Prospective Studies
;
Radiation Exposure
;
Signal-To-Noise Ratio
;
Urinary Tract
;
Urography*
5.The effects of daily intake timing of almond on the body composition and blood lipid profile of healthy adults.
Yanan LIU ; Hyo Jeong HWANG ; Hyesook RYU ; You Suk LEE ; Hyun Sook KIM ; Hyunjin PARK
Nutrition Research and Practice 2017;11(6):479-486
BACKGROUND/OBJECTIVES: Timing of almond intake during a day may result differently in the perspectives of body composition and changes of lipid profile. The current study was conducted to compare the effects of daily almond intake as a preload versus as a snack on body composition, blood lipid profile, and oxidative and inflammation indicators among young Korean adults aged 20–39 years old. SUBJECTS/METHODS: Participants were randomly assigned to one of three groups: a pre-meal almond group (PM), a snack almond group (SN) in which participants were instructed to consume 56 g of almonds either as a preload before meals or as a snack between meals, respectively, and a control group (CL) in which participants were provided high-carbohydrate iso-caloric control food. Measurements were performed at baseline, weeks 8 and 16. RESULTS: A total of 169 (M 77/F 92) out of the 227 participants completed the study between June 2014 and June 2015 (n = 58 for PM; 55 for SN; and 56 for CL). A significant decrease in body fat mass was observed in the PM group at both weeks 8 and 16 compared with the CL. There were significant intervention effects on changes of body fat mass (P = 0.025), body fat percentages (P = 0.019), and visceral fat levels (P < 0.001). Consuming almonds as a daily snack reduced the levels of total cholesterol (P = 0.043) and low-density lipoprotein (LDL) cholesterol (P = 0.011) without changing high-density lipoprotein (HDL) cholesterol compared with the CL. CONCLUSION: Almond consumption as a preload modified body fat percentages, whereas snacking on almonds between meals improved blood lipid profiles. This trial was registered at ClinicalTrials.gov as NCT03014531.
Adipose Tissue
;
Adult*
;
Body Composition*
;
Cholesterol
;
Humans
;
Inflammation
;
Intra-Abdominal Fat
;
Lipoproteins
;
Meals
;
Prunus dulcis*
;
Snacks
6.A Case of Fungal Ball Causing Acute Dacryocystitis.
You Sook HWANG ; Hee Jung YANG ; Ji Sun PAIK ; Suk Woo YANG
Journal of the Korean Ophthalmological Society 2017;58(4):455-458
PURPOSE: We report a case of fungal ball after Endoscopic Dacryocystorhinostomy (DCR) in a 40-year-old female patient. CASE SUMMARY: A 40-year-old female patient was admitted to our hospital for left lower eyelid tenderness and bloody discharge from the lacrimal punctum. During a planned endoscopic DCR, the sac was opened after the osteotomy, and 2 fungal balls were found in the lacrimal sac. The masses were 7 × 5 mm and, 9 × 5 mm sized, irregularly shaped, and red in color. Aspergillus fumigatus was diagnosed pathologically. Postoperative paranasal sinus magnetic resonance imaging showed no residual fungal ball. During follow-up, the patient showed patent rhinostomy opening, and there was no evidence of fungal infection on nasal endoscopic finding. CONCLUSIONS: Although Aspergillus fumigatus is a rare cause of canalicular obstruction, fungal ball development in the lacrimal sac can cause acute dacryocystitis.
Adult
;
Aspergillus fumigatus
;
Dacryocystitis*
;
Dacryocystorhinostomy
;
Eyelids
;
Female
;
Follow-Up Studies
;
Humans
;
Lacrimal Apparatus
;
Magnetic Resonance Imaging
;
Nasolacrimal Duct
;
Osteotomy
7.Clinical Analysis of Recurrence Rate and Symptom Improvement in Gastro-esophageal Reflux Disease Patients.
You Jeong JEONG ; Dong Ho LEE ; Tae Hyuck CHOI ; Tae Jun HWANG ; Byeong Hwan LEE ; Jong Chon NAH ; Sang Hyub LEE ; Young Soo PARK ; Jin Hyok HWANG ; Jin Wook KIM ; Sook Hyang JEONG ; Nayoung KIM ; Hyun Chae JUNG ; In Sung SONG
The Korean Journal of Gastroenterology 2010;55(2):100-108
BACKGROUND/AIMS: Gastro-esophageal reflux disease (GERD) is a chronic condition, with 50-80% of patients experiencing recurrence within one year following completion of initial treatment. The present study aimed to estimate recurrence rate and treatment response in GERD patients treated with proton pump inhibitor. METHODS: A total of 207 symptomatic GERD patients, which were confirmed by endoscopy from July 2008 till January 2009, were enrolled. They were divided into non-erosive reflux disease (NERD) group and erosive reflux disease (ERD) group by endoscopic findings. Patients were treated with lansoprazole 15 mg (NERD group) or 30 mg (ERD group) once daily for 8 weeks. The presence of symptoms was assessed in each patient at baseline and post-treatment using a questionnaire. Subsequent symptomatic recurrence on the cessation of therapy in each improved patients was checked by telephone survey or outpatient interview. RESULTS: Ninety-four patients and 113 patients were first diagnosed with NERD and ERD, respectively. The mean post-treatment follow-up period was 24.4+/-8.5 weeks. Recurrence rate was 40.0% (NERD, 43.8%; ERD, 37.1% (p=0.224)). Recurrence time was 10.1+/-5.8 weeks (NERD 9.6 weeks; ERD, 10.6 weeks (p=0.444)). Regarding the symptom improvement after 8 week therapy with lansoprazole, 89.4% (NERD, 85.1%; ERD, 92.9% (p=0.056)) of total patients were symptomatically improved. CONCLUSIONS: Forty percentage of GERD patients recurred within 6 months following the completion of 8 week therapy with lansoprazole. Recurrence rate, recurrence time, and rate of symptom improvement were not significantly different between NERD group treated with half dose and ERD group treated with full dose lansoprazole.
2-Pyridinylmethylsulfinylbenzimidazoles/therapeutic use
;
Adult
;
Aged
;
Anti-Ulcer Agents/therapeutic use
;
Female
;
Follow-Up Studies
;
Gastroesophageal Reflux/*drug therapy
;
Gastroscopy
;
Humans
;
Interviews as Topic
;
Male
;
Middle Aged
;
Proton Pump Inhibitors/therapeutic use
;
Questionnaires
;
Recurrence
8.Clinical Significance of Incidentally Detected Eosinophilic Esophagitis with Pathologic Review.
Youn Mu JUNG ; Hye Seung LEE ; Dong Ho LEE ; You Jeong JEONG ; Tae Hyuck CHOI ; Sang Hyub LEE ; Young Soo PARK ; Jin Hyok HWANG ; Jin Wook KIM ; Sook Hyang JEONG ; Nayoung KIM
The Korean Journal of Gastroenterology 2010;55(3):162-168
BACKGROUND/AIMS: Eosinophilic esophagitis (EE) is a chronic inflammatory disorder characterized by abnormal dense eosinophilic infiltration of esophageal mucosa and results in dysphasia and food impaction. EE is being increasingly recognized in adults. The prevalence is largely unknown. This study was performed to evaluate the detection rate of EE diagnosed based on pathologic criteria and to define the clinical characteristics of EE in Korea. METHODS: We reviewed biopsy specimen of the 1,609 patients who underwent esophageal biopsy from January 2006 till August 2008. The presence of more than 20 eosinophils per high power field in biopsy specimens was considered cases of EE. Clinical information and endoscopic findings were obtained. RESULTS: 7 (0.4%) patients were diagnosed as EE based on pathologic criteria retrospectively. Clinical symptoms were epigastric pain (43%), regurgitation (29%), dyspepsia (14%), and no symptom (14%). Endoscopic findings were whitish exudates or granules (57%), esophageal polyp (29%), and hyperemic change (14%). Two patients received treatment. One patient with bronchial asthma improved after treatment with inhaled corticosteroid, and one patient improved after 8 week proton pump inhibitor therapy. CONCLUSIONS: Eosinophilic esophagitis was found in 0.4% of the total esophageal biopsied cases. Our results suggest that Korean patients with eosinophilic esophagitis showed symptoms mimicking gastroesophageal reflux disease and atypical endoscopic findings. Therefore, regardless of the gross appearance of the mucosa, meticulous diagnostic approaches are needed for patients with swallowing difficulty and lack of response to proton pump inhibitor.
Adult
;
Aged
;
Biopsy
;
Dyspepsia/etiology
;
Eosinophilia/epidemiology/*pathology
;
Esophagitis/epidemiology/*pathology
;
Female
;
Humans
;
Incidence
;
Incidental Findings
;
Male
;
Middle Aged
;
Regurgitation, Gastric/etiology
;
Retrospective Studies
9.Clinico-epidemiologic Study of Nosocomial Rotaviral Gastroenteritis, 2001-2005.
Young Ah YOUN ; Seung Woo LEE ; Kyung Yil LEE ; You Sook YOON ; Ja Young HWANG ; Jung Woo RHIM ; Jin Han KANG ; Joon Sung LEE
Korean Journal of Pediatric Infectious Diseases 2009;16(2):123-130
PURPOSE: This study was performed to determine the clinical and epidemiologic characteristics of nosocomial rotavirus gastroenteritis. METHODS: We retrospectively analyzed 628 medical records of patients with rotavirus gastroenteritis between 2001 and 2005. The patients were divided into two groups (the community-acquired group [528 cases] and the nosocomial group [100 cases]. The epidemiologic and clinical indices between the groups were analysed. For clinical comparison, 100 age- matched cases were selected from the community-acquired group. RESULTS: The male-to-female ratio was similar (1.4:1 vs. 1.5:1), but the mean age was lower in the nosocomial group compared to the community-acquired group (21.9+/-15.5 months vs. 16.6+/-10.3 months, P<0.001). The patterns of age distribution, annual frequency, and seasonal distribution were similar in both groups. The proportions of nosocomial cases in each year ranged from 9.8% to 22.4% of annual rotaviral infections, and these were not proportional to annual cases. The duration of fever appeared more prominent in the nosocomial group, and the severity of diarrhea was not different between the groups. The cases with a BUN >20 mg/dL were more in the community-acquired group (16% vs. 4%, P=0.01). CONCLUSION: The clinical and epidemiologic charateristics of nosocomial rotavirus gastroenteritis were similar and correlated to those of the community-acquired gastroenteritis.
Age Distribution
;
Cross Infection
;
Diarrhea
;
Fever
;
Gastroenteritis
;
Humans
;
Medical Records
;
Retrospective Studies
;
Rotavirus
;
Seasons
10.A case of congenital syphilis mistaken for possible child abuse.
Soon Ju KIM ; Seung Woo LEE ; Jung Woo RHIM ; You Sook YOUN ; Jun Sung LEE ; Kyung Yil LEE ; Ja Young HWANG
Korean Journal of Pediatrics 2009;52(6):710-712
We describe the case of a 4-month-old male infant diagnosed with early congenital syphilis during evaluation of a left distal humerus fracture. This report emphasizes the importance of screening for syphilis among pregnant women and newborns, and is a reminder of the continued existence of congenital syphilis.
Child
;
Child Abuse
;
Female
;
Humans
;
Humerus
;
Infant
;
Infant, Newborn
;
Male
;
Mass Screening
;
Periostitis
;
Pregnant Women
;
Syphilis
;
Syphilis, Congenital

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