1.Anesthetic Management during Laparoscopic Excision of an Urachal Cyst in a Pediatric Patient: A case report.
Jang Hee LYU ; Kyoung Min LEE ; Seung Yun LEE ; Jun Geol LEE
Korean Journal of Anesthesiology 2005;49(3):425-428
A 14-month-old female patient was admitted for the laparoscopic excision of a complicated urachal cyst. General anesthesia was induced with thiopental and rocuronium and maintained with sevoflurane and the intermittent administration of vecuronium. During the insufflation of CO2 her intra-abdominal pressure was maintained below 12 cmH2O to avoid excessive hypercarbia. Thirty minutes after CO2 insufflation initiation, end tidal CO2 increased to 74 mmHg at a peak inspiratory airway pressure of 24 cmH2O. Laparoscopic excision of the urachal cyst was performed within 2 hours without a further change in end tidal CO2, blood pressure, heart rate, or O2 saturation. Before extubation, O2 saturation by pulse oxymetry was 99% and end tidal CO2 was 45-50 mmHg. The patient was discharged without any problem 5 days after the operation. We report on this clinical experience and include a brief review of the literature.
Anesthesia, General
;
Blood Pressure
;
Female
;
Heart Rate
;
Humans
;
Infant
;
Insufflation
;
Thiopental
;
Urachal Cyst*
;
Vecuronium Bromide
2.Early treatment volume reduction rate as a prognostic factor in patients treated with chemoradiotherapy for limited stage small cell lung cancer.
Joohwan LEE ; Jeongshim LEE ; Jinhyun CHOI ; Jun Won KIM ; Jaeho CHO ; Chang Geol LEE
Radiation Oncology Journal 2015;33(2):117-125
PURPOSE: To investigate the relationship between early treatment response to definitive chemoradiotherapy (CRT) and survival outcome in patients with limited stage small cell lung cancer (LS-SCLC). MATERIALS AND METHODS: We retrospectively reviewed 47 patients with LS-SCLC who received definitive CRT between January 2009 and December 2012. Patients were treated with systemic chemotherapy regimen of etoposide/carboplatin (n = 15) or etoposide/cisplatin (n = 32) and concurrent thoracic radiotherapy at a median dose of 54 Gy (range, 46 to 64 Gy). Early treatment volume reduction rate (ETVRR) was defined as the percentage change in gross tumor volume between diagnostic computed tomography (CT) and simulation CT for adaptive RT planning and was used as a parameter for early treatment response. The median dose at adaptive RT planning was 36 Gy (range, 30 to 43 Gy), and adaptive CT was performed in 30 patients (63.8%). RESULTS: With a median follow-up of 27.7 months (range, 5.9 to 75.8 months), the 2-year locoregional progression-free survival (LRPFS) and overall survival (OS) rates were 74.2% and 56.5%, respectively. The mean diagnostic and adaptive gross tumor volumes were 117.9 mL (range, 5.9 to 447 mL) and 36.8 mL (range, 0.3 to 230.6 mL), respectively. The median ETVRR was 71.4% (range, 30 to 97.6%) and the ETVRR >45% group showed significantly better OS (p < 0.0001) and LRPFS (p = 0.009) than the other group. CONCLUSION: ETVRR as a parameter for early treatment response may be a useful prognostic factor to predict treatment outcome in LS-SCLC patients treated with CRT.
Chemoradiotherapy*
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Radiotherapy
;
Retrospective Studies
;
Small Cell Lung Carcinoma*
;
Treatment Outcome
;
Tumor Burden
3.Early treatment volume reduction rate as a prognostic factor in patients treated with chemoradiotherapy for limited stage small cell lung cancer.
Joohwan LEE ; Jeongshim LEE ; Jinhyun CHOI ; Jun Won KIM ; Jaeho CHO ; Chang Geol LEE
Radiation Oncology Journal 2015;33(2):117-125
PURPOSE: To investigate the relationship between early treatment response to definitive chemoradiotherapy (CRT) and survival outcome in patients with limited stage small cell lung cancer (LS-SCLC). MATERIALS AND METHODS: We retrospectively reviewed 47 patients with LS-SCLC who received definitive CRT between January 2009 and December 2012. Patients were treated with systemic chemotherapy regimen of etoposide/carboplatin (n = 15) or etoposide/cisplatin (n = 32) and concurrent thoracic radiotherapy at a median dose of 54 Gy (range, 46 to 64 Gy). Early treatment volume reduction rate (ETVRR) was defined as the percentage change in gross tumor volume between diagnostic computed tomography (CT) and simulation CT for adaptive RT planning and was used as a parameter for early treatment response. The median dose at adaptive RT planning was 36 Gy (range, 30 to 43 Gy), and adaptive CT was performed in 30 patients (63.8%). RESULTS: With a median follow-up of 27.7 months (range, 5.9 to 75.8 months), the 2-year locoregional progression-free survival (LRPFS) and overall survival (OS) rates were 74.2% and 56.5%, respectively. The mean diagnostic and adaptive gross tumor volumes were 117.9 mL (range, 5.9 to 447 mL) and 36.8 mL (range, 0.3 to 230.6 mL), respectively. The median ETVRR was 71.4% (range, 30 to 97.6%) and the ETVRR >45% group showed significantly better OS (p < 0.0001) and LRPFS (p = 0.009) than the other group. CONCLUSION: ETVRR as a parameter for early treatment response may be a useful prognostic factor to predict treatment outcome in LS-SCLC patients treated with CRT.
Chemoradiotherapy*
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Radiotherapy
;
Retrospective Studies
;
Small Cell Lung Carcinoma*
;
Treatment Outcome
;
Tumor Burden
4.A Case of Rectus Muscle Transposition With Silicone Band in Strabismus Fixus With High Myopia.
Jun Sung LEE ; Hwan HEO ; Sang Woo PARK ; Yeoung Geol PARK
Journal of the Korean Ophthalmological Society 2009;50(7):1128-1132
PURPOSE: To present a surgical result of rectus muscle transposition with silicone band without suture on the sclera in strabismus fixus with high myopia. CASE SUMMARY: A 73-year-old female patient with a 20-year history of bilateral esotropia and hypotropia visited our clinic. The patient`s right eye was aphakic because crystalline lens removal was performed 17 years earlier and the left eye was phthisical after retinal detachment, due to high myopia. Ocular movements in both eyes were severely restricted in all directions with the cornea barely visible. Ultrasound examination revealed posterior staphyloma of the retina. The axial length measurement was 32 mm in the right eye, and could not be measured in the left eye. Posterior tenon fixation of the medial rectus and inferior rectus muscle tendon was performed, in addition, fixation of the lateral half of the superior rectus and superior half of the lateral rectus muscle on the silicone band 10 mm posterior to each muscle's scleral insertion as a transposition procedure was performed. At 6 months postoperatively, there was no residual esotropia or hypotropia. The right eye maintained a gaze limitation but improved abduction and supraduction. CONCLUSIONS: In strabismus fixus with high myopia, posterior tenon fixation and muscle transposition with silicone band is an effective method without complication.
Aged
;
Cornea
;
Esotropia
;
Eye
;
Female
;
Humans
;
Lens, Crystalline
;
Muscles
;
Myopia
;
Retina
;
Retinal Detachment
;
Sclera
;
Silicones
;
Strabismus
;
Sutures
;
Tendons
5.Long-Term Results of Descemet's Stripping Automated Endothelial Keratoplasty in Korea.
Jun Sung LEE ; Yeoung Geol PARK ; Kyung Chul YOON
Journal of the Korean Ophthalmological Society 2010;51(11):1431-1437
PURPOSE: To evaluate the long-term results of Descemet's stripping automated endothelial keratoplasty in Korea (DSAEK). METHODS: Seven patients with bullous keratopathy who underwent DSAEK and who were followed-up for more than 18 months were reviewed retrospectively. Best corrected visual acuity, refraction, corneal thickness, and endothelial cell count were examined before and after surgery. RESULTS: The mean follow-up period was 19.9 +/- 2.9 months (18 to 24 months), and the mean age was 61.42 +/- 10.13 years (46 to 76 years). Six patients (85.7%) showed successful results after surgery. Best corrected visual acuity (logMAR) was significantly improved from 1.62 (median) to 1.15 (median) (p = 0.027) at one month after surgery and was maintained until the final follow-up period. There were no statistical differences in spherical ametropia or astigmatism before or 18 months after the operation. Graft failure was observed in one case, in which penetrating keratoplasty was performed 12 months after DSAEK. CONCLUSIONS: Long term results of DSAEK showed fast visual recovery, low ametropia and astigmatism. DSAEK may be a good option for the surgical management of corneal endothelial disease.
Astigmatism
;
Corneal Transplantation
;
Endothelial Cells
;
Follow-Up Studies
;
Humans
;
Keratoplasty, Penetrating
;
Korea
;
Refractive Errors
;
Retrospective Studies
;
Transplants
;
Visual Acuity
6.Influence of the shade guide design on color matching.
Geol PARK ; Dong Jun KIM ; Shee Eun LEE ; Yun Chan HWANG ; Won Mann OH ; In Nam HWANG
Journal of Korean Academy of Conservative Dentistry 2005;30(3):170-177
This study was conducted in order to assess whether the form of the shade guide affects in deciding the color of the teeth using the shade guide. Eight shade light cured composite resins (Esthet-X, Dentsply, Milford, USA) were used in this study. Shade guides including the model of maxillary central incisors, teeth-form shade guide, doughnut form shade guide, and shade guide with perforated gray shield were prepared with eight shade composite resins and provided the codes randomly. After arranging the models of teeth, 19 dentists working at the clinic of the Dentistry of Chonnam University Hospital and 65 students of college of dentistry, Chonnnam University selected the shade guides corresponding to the color of each tooth on the gray board under the D65 standard illuminant. B1 shade showed highest accuracy of about 95% among all shade guides of 3 forms applied to the test and regardless of observer, tooth form shade guide showed the highest accuracy (p < 0.05), and the doughnut form showed the lowest accuracy (p < 0.05). At the time of deciding on the color of the teeth using the shade guides as a result of above, the forms of the shade guides can affect the accuracy, and it suggests that the development of the diversified forms of shade guides, which may obtain more accurate results, is required.
Composite Resins
;
Dentistry
;
Dentists
;
Humans
;
Incisor
;
Jeollanam-do
;
Tooth
7.Comparison of Wave V Latencies of Auditory Brainstem Responses by Bone Conduction and Air Conduction in Normal Hearing Infants and Toddlers.
Eun Jung LIM ; Ki Hwan KWAK ; Jin Geol LEE ; Jun Ki LEE ; Tae Hoon KIM ; Jun Ho PARK ; SungHee KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2015;58(10):676-681
BACKGROUND AND OBJECTIVES: Bone conduction (BC) auditory brainstem response (ABR) is an important factor in determining the type of hearing loss especially in infants and other difficult-to-test populations. However, multiple constraints including technical difficulties make evaluating BC ABR less feasible in the clinic, and there is also lack of information that guides clinicians how to evaluate it. The purpose of this study is to compare the latency of wave V in BC and air conduction (AC) ABR in normal hearing infants and gather reference values for wave V latency of BC ABR. SUBJECTS AND METHOD: A total of 210 ears of normal hearing, of those not belong to the hearing loss risk group, were included. All the infants underwent ABR evoked by clicks via AC (3A insert phone) and BC (Radioear B-71, vibrator positioned on the mastoid) under sedation. The latency of wave V at 30 dB nHL by BC and AC was compared and analyzed according to age. RESULTS: The results revealed that in every age group in the study, wave V latency at 30 dB nHL of BC ABR was shorter than that of AC ABR. There was a significant decrease in BC and AC latencies with age, but among each consecutive age group, significant latency change was not identified after 6 months old. CONCLUSION: The latency of BC ABR in young children was shorter than that of AC ABR, and it decreased significantly as age increased. However, the reference data should be considered by taking each laboratory's test parameter into consideration.
Bone Conduction*
;
Child
;
Ear
;
Evoked Potentials
;
Evoked Potentials, Auditory, Brain Stem*
;
Hearing Loss
;
Hearing*
;
Humans
;
Infant*
;
Reference Values
8.Effect of Hyperglycemia on the Length of Postoperative Hospital Stay.
Seung Yun LEE ; Kyoung Min LEE ; Jun Geol LEE ; Jeong Ae LIM ; Nam Sik WOO ; Ye Chul LEE
Korean Journal of Anesthesiology 2005;48(6):565-569
BACKGROUND: Diabetes mellitus is the most common endocrinopathy encountered in the perioperative period and has long been assumed to increase perioperative risk. However, when diabetes mellitus was segregated from old age and the complications of it, it was questioned that diabetes mellitus itself increased perioperative risk. In this study, we investigated the influence of hyperglycemia on the length of postoperative hospital stay. METHODS: We studied 100 patients undergone intra-abdominal operations with general anesthesia. These patients were divided into the hyperglycemic group (n = 20) with postoperative blood glucose level higher than 10 mM and the non-hyperglycemic group (n = 80) with glucose level lower than 10 mM and we investigated the length of postoperative hospital stay, serum electrolyte, serum chemistry, arterial blood gas values, and base excess by unmeasured anions. We also divided these patients into the diabetic patients group (n = 15) and the non-diabetic patients group (n = 85) and compared the same variables. RESULTS: The length of postoperative hospital stay was significantly prolonged in the hyperglycemic group (20.9 +/- 9.0 days) compared with the non-hyperglycemic group (16.2 +/-8.5 days), and the cumulative postoperative hospital stay curves based on Kaplan-Meier method also showed significant difference between the two groups. When we compared the length of postoperative hospital stay between the diabetic and the non-diabetic patients, there was no significant difference. CONCLUSIONS: This study demonstrated that hyperglycemia prolonged the length of postoperative hospital stay. This finding suggests that the patient's glucose level should be monitored and controlled within an adequate range perioperatively.
Anesthesia, General
;
Anions
;
Blood Glucose
;
Chemistry
;
Diabetes Mellitus
;
Glucose
;
Humans
;
Hyperglycemia*
;
Length of Stay*
;
Perioperative Period
9.Hair growth promoting effects of emodin in telogenic C57BL/6 mice.
Jung Min YON ; Seul Gi PARK ; Chunmei LIN ; Lee Wha GWON ; Jong Geol LEE ; In Jeoung BAEK ; Beom Jun LEE ; Young Won YUN ; Sang Yoon NAM
Korean Journal of Veterinary Research 2016;56(2):97-101
Emodin is an anthraquinone derivative from the roots of Rheum officinale Baill that possesses a variety of biological activities, including inhibition of 5α-reductase and prostaglandin D2. In this study, we investigated whether emodin promotes hair growth. After emodin was topically applied to the shaved dorsal skin of telogenic C57BL/6 N mice, the hair growth rate and morphological analysis were evaluated in dorsal skin for 15 days. After 13 days of treatment, minoxidil or emodin (0.01% or 0.1%)-treated groups showed remarkable regrowth of hairs relative to the vehicle control group. Scoring of the hair growth and rate of hair growth area for 15 days revealed that groups treated with minoxidil and 0.1% emodin were significantly higher than the vehicle control group. Histological examination revealed the emodin and minoxidil groups markedly recovered the number and morphology of hair follicles, including the subcutis depth, relative to the vehicle group. These results suggest that emodin has an excellent promoting effect in hair growth similar to that of minoxidil and might be useful for treatment of baldness or alopecia.
Alopecia
;
Animals
;
Emodin*
;
Hair Follicle
;
Hair*
;
Mice*
;
Minoxidil
;
Prostaglandin D2
;
Rheum
;
Skin
10.Temporal and subcellular distributions of Cy5.5-labeled hyaluronic acid nanoparticles in mouse organs during 28 days as a drug carrier.
Chunmei LIN ; Saet Byeol KIM ; Jung Min YON ; Seul Gi PARK ; Lee Wha GWON ; Jong Geol LEE ; In Jeoung BAEK ; Beom Jun LEE ; Young Won YUN ; Sang Yoon NAM
Korean Journal of Veterinary Research 2017;57(4):215-222
Temporal and subcellular distributions of hyaluronic acid (HA) as a degradable nanoparticle (NP) in animals were investigated to determine if HA-NP could be utilized as an appropriate drug delivery system. After mice were intravenously injected with 5 mg/kg of Cy5.5-labeled HA-NP sized 350–400 nm or larger HA-polymers, the fluorescence intensity was measured in all homogenized organs from 0.5 h to 28 days. HA-NP was greatly detected in spleen, liver and kidney until day 28, while it was maintained at low levels in other organs. HA-polymer was observed at low levels in all organs. HA-NP quantities in spleen and liver were reduced until day 3, but increased sharply between days 3 and 7, then decreased again, while their HA-polymers were maintained at low levels until day 28. In kidneys, both HA-NP and HA-polymer showed high levels after 0.5 h of administration, but steadily decreased until day 28. According to ultrastructural analyses, HA-NP was engulfed in Kupffer cells of liver and macrophages of spleen and kidney at day 1 and was accumulated in the cytoplasm of kidney tubular cells at day 7. Overall, these findings suggest that HA-NP could be considered a desirable drug carrier in the liver, kidney, or spleen.
Animals
;
Cytoplasm
;
Drug Carriers*
;
Drug Delivery Systems
;
Fluorescence
;
Hyaluronic Acid*
;
Kidney
;
Kupffer Cells
;
Liver
;
Macrophages
;
Mice*
;
Nanoparticles*
;
Pharmacokinetics
;
Spleen