1.Refraction before and after LASIK.
Damho LEE ; Hoyoung WIE ; Joon Mo KIM
Journal of the Korean Ophthalmological Society 2003;44(11):2585-2590
PURPOSE: It is important to know the accurate refractive error of the patients before LASIK because the amount of ablation is determined by that. We analyzed whether there are differences among the preoperative and postoperative results of cycloplegic retinoscopy (CR), module setting value, and autorefraction with and without cycloplegia (ACR, AMR). METHODS: The manifest and cycloplegic refractions of 104 eyes of 104 patients who underwent LASIK from February 2001 to July 2001 were reviewed. The preoperative and postoperative cycloplegic refraction, autorefraction by Canon RK-5, and module setting value were analyzed. RESULTS: In comparison of the preoperative values, AMR showed myopic shift compared to CR, module setting, and ACR (p<.001). ACR showed hyperopic shift compared to CR (p<0.001). The module setting showed myopic shift compared to CR, but it was not statistically significant. Postoperative mean spherical equivalent was 0.04 +/- 0.67D(range: -1.75 ~ +1.5). In comparison of the postoperative results, ACR showed hyperopic shift compared to CR (p<0.001) and AMR showed myopic shift compared to CR (p<0.001). CONCLUSIONS: As there is a difference between autorefraction and cycloplegic refraction, it is inappropriate to decide the amount of ablation only by one method. Hence when LASIK or LASIK retreatment is planned, cycloplegic refraction as well as autorefraction is necessary.
Humans
;
Keratomileusis, Laser In Situ*
;
Refractive Errors
;
Retinoscopy
;
Retreatment
2.The Effects of Spouse Support and Conflict on Depression in Older Adults and Their Gender Difference.
Journal of Korean Geriatric Psychiatry 2017;21(1):8-16
OBJECTIVE: The purpose of this study is to investigate the effects of spouse support and conflict on the depression in older adults, and also to explore whether there are any differences between men and women in these effects. METHODS: The participants of this study were normal and married older adults who participated in the first wave of Korean Social Life, Health, and Aging Project. Participants consisted of 221 men and 210 women. The effects of support and conflict in spousal and other relationships on depression were analyzed using hierarchical regression analysis, separately in men and women. RESULTS: In the men group, the spouse conflict was especially influential in depression. More spouse conflict resulted in greater depression among men. In the women group, however, support from individuals other than spouse (kin support and friends support) had significant effects on depression. Less support received from individuals other than spouse was associated with higher levels of depression among women. CONCLUSION: The results of this study suggest that the quality of spousal and other relationships is related to depression in older adults. Moreover, there is a gender difference in the effect of support and conflict experienced in the relationship.
Adult*
;
Aging
;
Depression*
;
Female
;
Friends
;
Humans
;
Male
;
Spouses*
3.A Case of Obstructive Sleep Apnea Syndrome Presenting as Paradoxical Insomnia.
Psychiatry Investigation 2010;7(1):75-78
A 63-year-old female with obstructive sleep apnea syndrome (OSAS) presented with clinical features indistinguishable from paradoxical insomnia (PI). Her main complaint was chronic insomnia. Her subjective sleep latency was 2-3 h, subjective sleep time was less than 3 h, despite spending 8 h in bed, and she reported near constant awareness of her surroundings while lying in bed. Her body mass index (BMI) was 22.67 kg/m2, and her neck circumference was 34.5 cm. Nocturnal polysomnography (NPSG) findings indicated severe OSAS. Her total sleep time (TST) was 359 min, sleep latency 13 min, and her apnea/hypopnea index (AHI) was 74.6/h. The aim of this report is to evaluate the association between PI and OSAS cases confirmed by NPSG.
Body Mass Index
;
Deception
;
Female
;
Humans
;
Middle Aged
;
Neck
;
Polysomnography
;
Sleep Apnea Syndromes
;
Sleep Apnea, Obstructive
;
Sleep Wake Disorders, Intrinsic
;
Sleep Initiation and Maintenance Disorders
4.Social Network, Social Support, Social Conflict and Mini-Mental State Examination Scores of Rural Older Adults : Differential Associations across Relationship Types.
Jihyun CHOI ; Hoyoung KIM ; Yoosik YOUM
Journal of Korean Geriatric Psychiatry 2016;20(2):45-52
OBJECTIVE: This study aimed to examine the effects of the social engagement (size of the social networks, social support, social conflict) by relationship types (spouse, family and kin, and neighbor and friends) on the cognitive functions of older adults in rural communities. METHODS: The participants of this study were normal older adults who participated in the first wave of the Korean Social Life, Health and Aging Project. Five hundred two older adults (men 218, women 284) aged 60 and over (mean age=71.44±6.81) participated. We analyzed the effects of different types of social engagement on Mini-Mental State Examination for Dementia Screening (MMSE-DS) performance using hierarchical multiple regression analysis. RESULTS: The result showed that, after controlling for the education level and age, the social support from the spouse, the conflict with neighbors or friends, the number of neighbors or friends significantly predicted MMSE-DS scores. These three variables accounted for additional 5.2% of the total variance of MMSE-DS. CONCLUSION: Our findings suggest that social engagement (network size, support, conflict) is associated with cognitive function among older adults. However, social engagement in different types of social relationship may contribute differently to cognitive function of older adults.
Adult*
;
Aging
;
Cognition
;
Cognitive Aging
;
Cognitive Reserve
;
Dementia
;
Education
;
Female
;
Friends
;
Humans
;
Mass Screening
;
Rural Population
;
Spouses
5.Phentermine, Sibutramine and Affective Disorders.
Hoyoung AN ; Hyunjoo SOHN ; Seockhoon CHUNG
Clinical Psychopharmacology and Neuroscience 2013;11(1):7-12
A safe and effective way to control weight in patients with affective disorders is needed, and phentermine is a possible candidate. We performed a PubMed search of articles pertaining to phentermine, sibutramine, and affective disorders. We compared the studies of phentermine with those of sibutramine. The search yielded a small number of reports. Reports concerning phentermine and affective disorders reported that i) its potency in the central nervous system may be comparatively low, and ii) it may induce depression in some patients. We were unable to find more studies on the subject; thus, it is unclear presently whether phentermine use is safe in affective disorder patients. Reports regarding the association of sibutramine and affective disorders were slightly more abundant. A recent study that suggested that sibutramine may have deleterious effects in patients with a psychiatric history may provide a clue for future phentermine research. Three explanations are possible concerning the association between phentermine and affective disorders: i) phentermine, like sibutramine, may have a depression-inducing effect that affects a specific subgroup of patients, ii) phentermine may have a dose-dependent depression-inducing effect, or iii) phentermine may simply not be associated with depression. Large-scale studies with affective disorder patients focusing on these questions are needed to clarify this matter before investigation of its efficacy may be carried out and it can be used in patients with affective disorders.
Anti-Obesity Agents
;
Central Nervous System
;
Cyclobutanes
;
Depression
;
Humans
;
Mood Disorders
;
Obesity
;
Phentermine
6.The Efficacy and Safety of Dream Lens(TM) in School Children.
Hoyoung WIE ; Damho LEE ; Joon Mo KIM
Journal of the Korean Ophthalmological Society 2004;45(6):913-919
PURPOSE: This project was designed to study the effectiveness and safety of Dream lens(TM) (OK B+ series lenses, Contex, USA) in correcting myopia in a population of school children, under 13 years old. METHODS: Twenty-three school children aged 7 to 13 years followed over a 3-month period were fitted with lenses in the Vision Eye Center from September 2002 to March 2003. Slit lamp examination, uncorrected visual acuity, autorefraction and autokeratometry by Canon RK-5 and topography were measured at baseline and at 1week, 1 month, and 3 months after the lenses were worn. RESULTS: The mean baseline autorefraction was -2.54 +/- 1.00 diopters (range: -0.63~-4.00) and baseline uncorrected visual acuity over 0.5 was 11.1% and over 0.8 was 0%. Vision correction of over 0.8 was found in 80% of the cases in the first 1 week, 78% at 1 month, 91% at 3 months with the most rapid improvement occurring during the first 1 week. Superficial punctate keratitis occurred in 4 of 45 eyes, but there was no other pathologic problem. CONCLUSIONS: Dream lens is an effective and safe means of temporarily reducing myopia in a certain range of myopic patients; however, further studies are needed to determine the long-term effects on the eye health.
Adolescent
;
Child*
;
Humans
;
Keratitis
;
Myopia
;
Visual Acuity
7.Subjective Age and Cognitive Functioning in Old Age.
Jungmin SUK ; Suekyung LEE ; Hoyoung KIM
Journal of Korean Geriatric Psychiatry 2018;22(2):55-63
OBJECTIVE: The present study has examined whether subjective age would be associated with cognitive functioning in older adults. METHODS: Data from the third wave of Korean Social Life, Health, and Aging Project were used. This study was conducted with 152 older adults aged 60–89 years (mean=72.26, standard deviation=6.41) who completed measures of subjective age, Mini-Mental State Examination for Dementia Screening, Elderly Verbal Learning Test, Digit Span Test, Korean-Color Word Stroop Test, Trail Making Test, Verbal Fluency Test, Korean Boston Naming Test-Short form. The association of subjective age and cognitive functioning was analyzed using hierarchical regression analysis. Sex, depression, and chronological age were included as control variables. RESULTS: Hierarchical regression analysis revealed that a younger subjective age was associated with better processing speed, immediate memory, and executive function respectively. Even after controlling for chronological age, depression, and sex, the subjective age was associated with cognitive functioning in old age. CONCLUSION: Beyond chronological age, the subjective experience of age was associated with cognitive aging.
Adult
;
Aged
;
Aging
;
Cognition
;
Cognitive Aging
;
Dementia
;
Depression
;
Executive Function
;
Humans
;
Mass Screening
;
Memory, Short-Term
;
Stroop Test
;
Trail Making Test
;
Verbal Learning
8.The Prognostic Impact of Coronary Artery Disease and Aortic Aneurysm:Insights From CT Protocol for Simultaneous Evaluation of Coronary Artery and Aorta
Hoyoung KIM ; Jihoon KIM ; Yeon Hyeon CHOE ; Sung Mok KIM
Journal of Korean Medical Science 2023;38(45):e379-
Background:
There is a strong correlation between risk factors for coronary artery disease (CAD) and aortic aneurysm (AA). We aimed to investigate the prevalence and prognostic impact of CAD and AA in patients who underwent coronary aorta computed tomography (CACT) protocol, which allowed simultaneous evaluation of coronary artery and aorta.
Methods:
Between 2010 and 2021, 1,553 patients who underwent CACT were enrolled from a tertiary center. The presence and location of AA and the presence of CAD were identified from CT. The primary outcome was a composite of cardiovascular death, acute coronary syndrome requiring urgent revascularization, and stroke at 3 years after the index CT scan.
Results:
Out of 1,553 enrolled patients, 179 (11.5%) had AA. The prevalence of CAD was significantly higher in patients with AA than those without (47.5% vs. 18.3%, P < 0.001). Among patients with AA, the prevalence of comorbid CAD was higher in those with abdominal AA than thoracic AA (57.3% vs. 37.8%, P = 0.014), respectively. In multivariable analysis, the presence of CAD was an independent predictor of primary outcome at 3 years (hazard ratio [HR], 2.58; 95% CI, 1.47–4.51; P = 0.001), while AA was not (HR, 1.00; 95% CI, 0.48–2.07; P = 0.993).
Conclusion
In this cohort of patients undergoing simultaneous evaluation of coronary artery and aorta using CACT protocol, patients with AA had an increased risk of comorbid CAD compared to those without AA. CAD was independently associated with adverse clinical outcomes at 3 years.
9.Open Partial Nephrectomy vs. Robotassisted Partial Nephrectomy for a Renal Tumor Larger than 4 cm: a Propensity Score Matching Analysis
Sangchul LEE ; Hoyoung RYU ; Jeong Woo LEE
Journal of Korean Medical Science 2021;36(20):e135-
Background:
To compare open partial nephrectomy (OPN) and robot-assisted partial nephrectomy (RAPN) in the management of renal tumors larger than 4 cm.
Methods:
Clinical records of 220 patients who underwent OPN or RAPN for a single renal tumor ≥ 4.0 cm with a normal contralateral kidney were reviewed. After determining the propensity score, surgical parameters, functional outcomes, and oncological outcomes were compared between OPN (n = 67) and RAPN (n = 67) groups of patients.
Results:
The RAPN group had longer operation time (149.0 min vs. 173.3 min, P = 0.030) and longer ischemic time (20.3 min vs. 29.4 min, P = 0.001), but shorter hospital stay (8.2 days vs 6.0 days, P = 0.001) than the OPN group. Estimated blood loss (P = 0.053), pain visual analog score at 1 day postoperatively (P = 0.194), and complications of grade III or higher (P = 0.403) were similar between OPN and RAPN groups. There was no radical conversion or positive surgical margin in either group. Mean change in 6-month estimated glomerular filtration rate was significantly better in the RAPN group (−8.2 vs. −3.1, P = 0.027). There was no statistical difference in recurrence-free survival (P = 0.970) or cancer-specific survival (P = 0.345) between the two groups.
Conclusion
RAPN is a safe and feasible surgical modality comparable to OPN for managing renal tumors larger than 4 cm in terms of surgical, functional, and oncological outcomes.
10.Open Partial Nephrectomy vs. Robotassisted Partial Nephrectomy for a Renal Tumor Larger than 4 cm: a Propensity Score Matching Analysis
Sangchul LEE ; Hoyoung RYU ; Jeong Woo LEE
Journal of Korean Medical Science 2021;36(20):e135-
Background:
To compare open partial nephrectomy (OPN) and robot-assisted partial nephrectomy (RAPN) in the management of renal tumors larger than 4 cm.
Methods:
Clinical records of 220 patients who underwent OPN or RAPN for a single renal tumor ≥ 4.0 cm with a normal contralateral kidney were reviewed. After determining the propensity score, surgical parameters, functional outcomes, and oncological outcomes were compared between OPN (n = 67) and RAPN (n = 67) groups of patients.
Results:
The RAPN group had longer operation time (149.0 min vs. 173.3 min, P = 0.030) and longer ischemic time (20.3 min vs. 29.4 min, P = 0.001), but shorter hospital stay (8.2 days vs 6.0 days, P = 0.001) than the OPN group. Estimated blood loss (P = 0.053), pain visual analog score at 1 day postoperatively (P = 0.194), and complications of grade III or higher (P = 0.403) were similar between OPN and RAPN groups. There was no radical conversion or positive surgical margin in either group. Mean change in 6-month estimated glomerular filtration rate was significantly better in the RAPN group (−8.2 vs. −3.1, P = 0.027). There was no statistical difference in recurrence-free survival (P = 0.970) or cancer-specific survival (P = 0.345) between the two groups.
Conclusion
RAPN is a safe and feasible surgical modality comparable to OPN for managing renal tumors larger than 4 cm in terms of surgical, functional, and oncological outcomes.