1.Categorization of Meibomian Gland Dysfunction Using Lipid Layer Thickness and Meibomian Gland Dropout in Dry Eye Patients: A Retrospective Study
Phil Kyu LEE ; Jae Lim CHUNG ; Da Ran KIM ; Young Chae YOON ; SoonWon YANG ; Woong-Joo WHANG ; Yong-Soo BYUN ; HyungBin HWANG ; Kyung Sun NA ; HyunSoo LEE ; So Hyang CHUNG ; Eun Chul KIM ; YangKyung CHO ; Hyun Seung KIM ; Ho Sik HWANG
Korean Journal of Ophthalmology 2024;38(1):64-70
Purpose:
In the present study, we determined the prevalence of obstructive meibomian gland dysfunction (MGD), hyposecretory MGD, grossly normal MG, and hypersecretory MGD in patients with dry eye syndrome using lipid layer thickness (LLT) and MG dropout.
Methods:
Eighty-eight patients with dry eye syndrome were included in the study. Patients were categorized into four groups according to the LLT and weighted total meiboscore. The proportion of patients in each group was calculated. The age, sex, Ocular Surface Disease Index, LLT, Schirmer, tear film breakup time, cornea stain, weighted total meiboscore, expressibility, and quality of meibum were compared between the four groups.
Results:
Fifteen eyes (17.0%) had obstructive MGD, two eyes (2.3%) had hyposecretory MGD, 40 eyes (45.5%) had grossly normal MG, and 17 eyes (19.3%) had hypersecretory MGD. The obstructive MGD group was younger than the grossly normal MG group. In obstructive MGD, the ratio of men to women was higher than that of the other groups. However, Ocular Surface Disease Index, Schirmer, tear film breakup time, and corneal stain did not show statistically significant differences between the four groups. The meibum expressibility of the hyposecretoy MGD group was worse than those of the other groups. The meibum expressibility of the hyposecretoy MGD group was poor than those of the obstructive and hypersecretory MGD group.
Conclusions
This categorization was expected to help determine the best treatment method for dry eye syndrome, according to the MG status.
2.The relationship between the time from arrival at a hospital to delivery and the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age.
Jae Woong WHANG ; A Lum HEO ; Soo Hyun KOO ; Hae Jung LEE ; Jun Wha LEE ; Joo Seok LEE ; Kyung Lae CHO
Korean Journal of Pediatrics 2009;52(11):1228-1233
PURPOSE: This study aimed to evaluate whether a shorter time from the arrival at a hospital to delivery is related to the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age. METHODS: We studied 142 newborns of less than 34 weeks of gestational age. The time from the arrival at the hospital to delivery was measured. The correlation between the time required for delivery and the occurrence of cerebral palsy was elucidated by diagnosing cerebral palsy in neonates using the Korean Infant Development Screening Test and neurological examination. RESULTS: Preliminary result suggested that a shorter time from hospital arrival to delivery was related to a lower development score for gross motor activity and to a higher frequency of cerebral palsy occurrence. Moreover, it was responsible for a tendency of obtaining lower Apgar scores at 1 and 5 minutes. The shorter delivery time was associated with a higher probability of respiratory distress syndrome (RDS) occurrence when the length of delivery time was less than 6 hours and there was a higher probability of a shorter gestation period. However, the multifactor analysis revealed that there was little impact of delivery time on the occurrence of cerebral palsy. Conclusions: The length of hospital arrival time to delivery did not significantly influence the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age.
Cerebral Palsy
;
Child
;
Child Development
;
Gestational Age
;
Humans
;
Infant, Newborn
;
Infant, Premature
;
Mass Screening
;
Motor Activity
;
Neurologic Examination
;
Pregnancy
3.The relationship between the time from arrival at a hospital to delivery and the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age.
Jae Woong WHANG ; A Lum HEO ; Soo Hyun KOO ; Hae Jung LEE ; Jun Wha LEE ; Joo Seok LEE ; Kyung Lae CHO
Korean Journal of Pediatrics 2009;52(11):1228-1233
PURPOSE: This study aimed to evaluate whether a shorter time from the arrival at a hospital to delivery is related to the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age. METHODS: We studied 142 newborns of less than 34 weeks of gestational age. The time from the arrival at the hospital to delivery was measured. The correlation between the time required for delivery and the occurrence of cerebral palsy was elucidated by diagnosing cerebral palsy in neonates using the Korean Infant Development Screening Test and neurological examination. RESULTS: Preliminary result suggested that a shorter time from hospital arrival to delivery was related to a lower development score for gross motor activity and to a higher frequency of cerebral palsy occurrence. Moreover, it was responsible for a tendency of obtaining lower Apgar scores at 1 and 5 minutes. The shorter delivery time was associated with a higher probability of respiratory distress syndrome (RDS) occurrence when the length of delivery time was less than 6 hours and there was a higher probability of a shorter gestation period. However, the multifactor analysis revealed that there was little impact of delivery time on the occurrence of cerebral palsy. Conclusions: The length of hospital arrival time to delivery did not significantly influence the occurrence of cerebral palsy in premature infants of less than 34 weeks of gestational age.
Cerebral Palsy
;
Child
;
Child Development
;
Gestational Age
;
Humans
;
Infant, Newborn
;
Infant, Premature
;
Mass Screening
;
Motor Activity
;
Neurologic Examination
;
Pregnancy
4.Biventricular Repair of Double Outlet Right Ventricle with Non-Committed Ventricular Septal Defect by Arterial Switch: Report of 1 cases.
Jae Hyun KIM ; Woong Han KIM ; Yunhee CHANG ; Chan Young NA ; Sam Se OH ; Man Jong BAEK ; Sung Wook WHANG ; Cheol LEE ; Chang Hyun KANG ; Won Min JO ; Hong Ju SEO ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(9):687-690
Although surgical options for double outlet right ventricle (DORV) with non-committed ventricular septal defect (VSD) are vary in accordance to the morphological characteristics, it is very difficult to use biventricular repair technique when there is tricuspid chordae originating from conal septum or when the distance between the tricuspid valve and the pulmonic valve is too short. We report our clinical experience of biventricular repair of DORV with non- committed VSD by VSD rerouting to the pulmonary artery and arterial switch in case of a presence of conal tricuspid chordae and short distance between the tricuspid valve and the pulmonic valve.
Double Outlet Right Ventricle*
;
Heart Septal Defects
;
Heart Septal Defects, Ventricular*
;
Pulmonary Artery
;
Tricuspid Valve
5.Anticoagulant Therapy for Left Ventricular Thrombosis after Dor Procedure.
Man Jong BAEK ; Chan Young NA ; Sam Se OH ; Woong Han KIM ; Sung Wook WHANG ; Cheol LEE ; Yunhee CHANG ; Won Min JO ; Jae Hyun KIM ; Hong Ju SEO ; Ho Kyong KANG ; Hyun Soo MOON ; Young Kwan PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(7):518-522
Left ventricular thrombosis is a frequent and potentially dangerous complication in acute myocardiac infarction, but its occurrence and adequate therapy has not been known in patients with Dor procedure for the ischemic cardiomyopathy. We report a patient, 45 year-old male, who had a new left ventricular thrombus developed after coronary arterial bypass graft, Dor procedure, and removal of the left ventricular thrombus for ischemic cardiomyopathy. Left ventricular thrombus was disappeared on the follow-up cardiac MRI following intravenous heparin injection and oral coumadin therapy. This case suggest that anticoagulation therapy may prevent patients with the severe left ventricular dysfunction and apical aneurysm and dyskinesia from developing the left ventricular thrombus, and that thrombi will resolve without clinical evidence of systemic embolism.
Aneurysm
;
Cardiomyopathies
;
Dyskinesias
;
Embolism
;
Follow-Up Studies
;
Heart Aneurysm
;
Heparin
;
Humans
;
Infarction
;
Magnetic Resonance Imaging
;
Male
;
Middle Aged
;
Thrombosis*
;
Transplants
;
Ventricular Dysfunction, Left
;
Warfarin
6.Aortic Root Replacement in Patient of Right Ventricular Hypoplasia with Annuloaortic Ectasia, Ventricular Septal Defect and Aortic Regurgitation: Report of 1 case.
Man Jong BAEK ; Chan Young NA ; Sam Se OH ; Woong Han KIM ; Sung Wook WHANG ; Cheol LEE ; Yunhee CHANG ; Won Min JO ; Jae Hyun KIM ; Hong Ju SEO ; Sang Soo KANG ; Hyun Soo MOON ; Young Kwan PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(7):510-513
Annuloaortic ectasia, aortic regurgitation (AR), and ventricular septal defect (VSD) in patients with right ventricular hypoplasia is a very rare condition. We report a patient who underwent aortic root replacement with a composite graft for annuloaortic ectasia associated with VSD and AR in right ventricular hypoplasia. The patient was a 19 year-old male. Transthoraic echocardiogram and cardiac catheterization revealed a perimembranous VSD (2 cm in diameter), severe AR, annuloaortic ectasia, bipartite right ventricle with hypoplasia, and hypoplastic tricuspid valve. Operative findings showed that free margins of the right and noncoronary cusps were markedly elongated, thickened, and retracted, and commissure between the right coronary cusp and the noncoronary cusp was fused and calcified. VSD was closed with an autologous pericardial patch and composite graft aortic root replacement using direct coronary button reimplantation was performed, and the hypertrophic muscle of the right ventricular outflow tract was resected. The patient had transient weaning failure of cardiopulmonary bypass and was discharged at the postoperative 14 days without any problems.
Aortic Valve Insufficiency*
;
Cardiac Catheterization
;
Cardiac Catheters
;
Cardiopulmonary Bypass
;
Dilatation, Pathologic*
;
Heart Septal Defects, Ventricular*
;
Heart Ventricles
;
Humans
;
Male
;
Replantation
;
Transplants
;
Tricuspid Valve
;
Weaning
;
Young Adult
7.Outcomes of Combined Mitral Valve Repair and Aortic Valve Replacement.
Man Jong BAEK ; Chan Young NA ; Sam Se OH ; Woong Han KIM ; Sung Wook WHANG ; Cheol LEE ; Yunhee CHANG ; Won Min JO ; Jae Hyun KIM ; Hong Ju SEO ; Soo Cheol KIM ; Cheong LIM ; Wook Sung KIM ; Young Tak LEE ; Hyun Seok CHOI ; Hyun Soo MOON ; Young Kwan PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(7):463-471
BACKGROUND: The long-term results of combined mitral valve repair and aortic valve replacement (AVR) have not been well evaluated. This study was performed to investigate the early and long-term results of mitral valve repair with AVR. MATERIAL AND METHOD: We retrospectively reviewed 45 patients who underwent mitral valve repair and AVR between September 1990 and April 2002. The average age was 47 years; 28 were men and 17 women. Twelve patients had atrial fibrillation and three had a previous cardiac operation. The mitral valve disease consisted of pure insufficiency (MR) in 34 patients, mitral stenosis (MS) in 3, and mixed lesion in 8. Mitral valve disease was due to rheumatic origin in 24 patients, degenerative in 11, annular dilatation in 8, and ischemia or endocarditis in 2. The functional anatomy of mitral valve was annular dilatation in 31 patients, chordal elongation in 19, leaflet thickening in 19, commissural fusion in 13, chordal fusion in 10, chordal rupture in 6, and so on. Aortic prostheses used included mechanical valve in 32 patients, tissue valve in 12, and pulmonary autograft in one. The techniques of mitral valve repair included annuloplasty in 32 patients and various valvuloplasty of 54 techniques in 29 patients. Total cardiopulmonary bypass and aortic cross clamp time were 204+/-62 minute and 153+/-57 minutes, respectively. RESULT: Early death was in one patient due to low output syndrome (2.2%). After follow up of 57+/-37 months, late death was in one patient and the actuarial survival at 10 years was 96+/-4%. Recurrent MR developed grade II or III in 11 patients and moderate MS in 3. Three patients required reoperation for valve-related complications. The actuarial freedom from recurrent MR, MS, and reoperation were 64+/-11%, 86+/-8%, and 89+/-7% respectively. CONCLUSION: Combined mitral valve repair with AVR offers good early and long-term survival, and adequate techniques and selection of indication of mitral valve repair, especially in rheumatic disease, are prerequisites for better long-term results.
Aortic Valve*
;
Atrial Fibrillation
;
Autografts
;
Cardiopulmonary Bypass
;
Dilatation
;
Endocarditis
;
Female
;
Follow-Up Studies
;
Freedom
;
Humans
;
Ischemia
;
Male
;
Mitral Valve Stenosis
;
Mitral Valve*
;
Prostheses and Implants
;
Reoperation
;
Retrospective Studies
;
Rheumatic Diseases
;
Rupture
8.Cabrol Technique Application in Off-pump Coronary Artery Bypass Grafting Using Radial Artery.
Chan Young NA ; Sam Se OH ; Soo Cheol KIM ; Jae Hyun KIM ; Won Min JO ; Hong Ju SEO ; Cheul LEE ; Yun Hee CHANG ; Chang Hyun KANG ; Cheong LIM ; Man Jong BAEK ; Song Wok WHANG ; In Seok CHOI ; Woong Han KIM ; Yoon Ock PARK ; Hyun Soo MOON ; Young Kwang PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(8):630-632
In off-pump coronary artery bypass grafting (CABG), multiple proximal anastomosis may increase the risk of cerebral embolism (air, debris) and aortic injury (dissection, pseudoaneurysm). Radial artery (RA) has no intraluminal valve such as saphenous vein. We applied Cabrol technique using aortic root replacement for proximal anastomosis in off-pump CABG. Cabrol technique using RA graft can reduce numbers of proximal anastomosis and reduce number of aortic manipulation in off-pump CABG. We report a Cabrol technique for proximal anastomosis in off-pump CABG with RA graft.
Coronary Artery Bypass
;
Coronary Artery Bypass, Off-Pump*
;
Intracranial Embolism
;
Radial Artery*
;
Saphenous Vein
;
Surgical Procedures, Minimally Invasive
;
Transplants*
9.Pacemaker Lead Endocarditis Combined with Rupture of Sinus Valsalva after Redo Aortic Valve Replacement.
Man Jong BAEK ; Chan Young NA ; Sam Sae OH ; Woong Han KIM ; Sung Wook WHANG ; Cheol LEE ; Chang Hyun KANG ; Yunhee CHANG ; Won Min JO ; Jae Hyun KIM ; Hong Ju SEO ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(10):780-783
Pacemaker lead-related infective endocarditis is an uncommon, but serious complication. We report a case of a 45-year-old man who had symptom of intermittent high fever and rupture of sinus Valsalva that developed after a redo aortic valve replacement and transvenous permanent pacemaker implantation. Positive blood cultures of streptococcus viridans and transesophageal echocardiography showing a large mobile vegetation on pacemaker lead and tricuspid valve lead to the diagnosis of pacemaker lead-related infective endocarditis. Initial antibiotic therapy followed by surgical extraction of the pacemaker lead and wide debridement of infective tissues including multiple vegetations was required. Postoperative antibiotic therapy was continued for 4 weeks. The postoperative course has been uneventful. The patient is totally asymptomatic and is doing well up to now.
Aortic Valve*
;
Debridement
;
Diagnosis
;
Echocardiography, Transesophageal
;
Endocarditis*
;
Fever
;
Humans
;
Middle Aged
;
Rupture*
;
Tricuspid Valve
;
Viridans Streptococci
10.Left Atrial Myxoma Associated with Mitral Regurgitation and Coronary Artery Disease.
Man Jong BAEK ; Chan Young NA ; Sam Sae OH ; Woong Han KIM ; Sung Wook WHANG ; Cheol LEE ; Yunhee CHANG ; Won Min JO ; Jae Hyun KIM ; Hong Ju SEO ; Yoon Ock PARK ; Hyun Soo MOON ; Young Kwan PARK ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2003;36(11):862-865
Obstructive intracardiac lesions, like mitral stenosis or insufficiency (MR), by myxomas of the left atrium have been commonly reported, but the attenuation of MR by myxoma combined with coronary artery disease is very rare. We report a 70-year-old female patient whose left atrial myxoma had attenuated moderate MR to mild MR and required mitral valve surgery after removal of the myxoma. She also had coronary artery disease, severe pulmonary hypertension and moderate tricuspid regurgitation due to the mitral valve lesions obstructed by myxoma. The patient underwent removal of myxoma, mitral and tricuspid valve reconstructions, and coronary artery bypass grafting. She was discharged at the postoperative 14 day without any problems.
Aged
;
Coronary Artery Bypass
;
Coronary Artery Disease*
;
Coronary Vessels*
;
Female
;
Heart Atria
;
Humans
;
Hypertension, Pulmonary
;
Mitral Valve
;
Mitral Valve Insufficiency*
;
Mitral Valve Stenosis
;
Myxoma*
;
Tricuspid Valve
;
Tricuspid Valve Insufficiency

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