1.The Effects of Volume and Concentration Using the Hyperbaric Bupivacaine in Spinal Anesthesia.
Soo Chang SON ; Mi Jung AHN ; Jeong Ok JO
Korean Journal of Anesthesiology 1999;37(4):603-607
BACKGROUND: The purpose of this study is to investigate the effects of volume and concentration in a constant dose of subarachnoid bupivacaine on the extent and duration of sensory and motor blocks. METHODS: Forty parturients scheduled for cesarean section were randomly assigned to two groups for spinal anesthesia. In group 1, 3.5 ml of hyperbaric 0.25% bupivacaine (8.75 mg) with 0.25 mg morphine and 10 microgram fentanyl were injected into the subarachnoid space; in group 2, 1.75 ml of hyperbaric 0.5% bupivacaine (8.75 mg) with 0.25 mg morphine and 10 microgram fentanyl were injected. Dural punctures were performed at the L3-L4 or L2-L3 interspaces with a 25 gauge needle in the sitting position after which the patients were turned to the supine horizontal position. The level and extent of the sensory and motor block were measured at 3, 5, 10, and 15 minutes. The onset, duration and regression of sensory and motor blocks were studied. RESULTS: There were no significant differences between two groups in the level and extent of sensory and motor blocks. From onset time to maximal sensory block took 12.1 +/- 3.0 min in group 1, and 13.3 +/- 3.7 min in group 2, and from onset time to complete motor block took 10.2 +/- 2.7 min in group 1 and 11.4 +/-2.6 min in group 2. There was no significant difference in the time taken to complete the regression of seosory block, and the complete resolution of the motor block. CONCLUSIONS: A constant 8.75 mg dose of subarachnoid hyperbaric bupivacaine produced, in all groups, a similar, statistically insisnificant, level and extent of sensory and motor block, in spite of different volumes and concentrations.
Anesthesia, Spinal*
;
Bupivacaine*
;
Cesarean Section
;
Female
;
Fentanyl
;
Humans
;
Morphine
;
Needles
;
Pregnancy
;
Punctures
;
Subarachnoid Space
2.The Effects of Volume and Concentration Using the Hyperbaric Bupivacaine in Spinal Anesthesia.
Soo Chang SON ; Mi Jung AHN ; Jeong Ok JO
Korean Journal of Anesthesiology 1999;37(4):603-607
BACKGROUND: The purpose of this study is to investigate the effects of volume and concentration in a constant dose of subarachnoid bupivacaine on the extent and duration of sensory and motor blocks. METHODS: Forty parturients scheduled for cesarean section were randomly assigned to two groups for spinal anesthesia. In group 1, 3.5 ml of hyperbaric 0.25% bupivacaine (8.75 mg) with 0.25 mg morphine and 10 microgram fentanyl were injected into the subarachnoid space; in group 2, 1.75 ml of hyperbaric 0.5% bupivacaine (8.75 mg) with 0.25 mg morphine and 10 microgram fentanyl were injected. Dural punctures were performed at the L3-L4 or L2-L3 interspaces with a 25 gauge needle in the sitting position after which the patients were turned to the supine horizontal position. The level and extent of the sensory and motor block were measured at 3, 5, 10, and 15 minutes. The onset, duration and regression of sensory and motor blocks were studied. RESULTS: There were no significant differences between two groups in the level and extent of sensory and motor blocks. From onset time to maximal sensory block took 12.1 +/- 3.0 min in group 1, and 13.3 +/- 3.7 min in group 2, and from onset time to complete motor block took 10.2 +/- 2.7 min in group 1 and 11.4 +/-2.6 min in group 2. There was no significant difference in the time taken to complete the regression of seosory block, and the complete resolution of the motor block. CONCLUSIONS: A constant 8.75 mg dose of subarachnoid hyperbaric bupivacaine produced, in all groups, a similar, statistically insisnificant, level and extent of sensory and motor block, in spite of different volumes and concentrations.
Anesthesia, Spinal*
;
Bupivacaine*
;
Cesarean Section
;
Female
;
Fentanyl
;
Humans
;
Morphine
;
Needles
;
Pregnancy
;
Punctures
;
Subarachnoid Space
3.A Comparative Study on Evaluation Methods of Permanent Impairment in Korea.
Chang Ok RHEE ; Jung Keun CHOI ; Mi A SON ; Ok Ryun MOON
Korean Journal of Preventive Medicine 1994;27(3):627-651
In this study, literature review was done to examine and compare the current status and problems of different evaluation approaches toward permanent impairment in Korea. Alternatives and improvements in the current approaches in Korea were suggested. Series of cases were also examined to compare different approaches applied to the real cases, using 105 cases from a hospital data and another 207 cases from insurance company data. The main findings of the literature review are as follows; 1. The current evaluation methods of permanent impairment in Korea are grouped into two categories, grading and rating. Grading of impairments are expressly specified in 17 various statutes. 2. In Grading methods, the rigid system of 14 different grades has been adopted uniformally for the convenience of administration, which may not be, appropriate or valid from medical and scientifical aspect. 3. The advantage of McBride method is assessment of occupational disability rate. However the classified compensable occupations are only 280 and limited to manufacturing industries in 1960s' of U.S.A., which is not appropriate to current Korean circumstances. Especially, the job list does not include managerial officers or mental workers. 4. AMA Guides is the scientific and reasonable method for the assessment of physical impairment rate. However compensation and reparation of impairment case is difficult because this method cannot assess the disability rate according to occupation, age, etc. The results of cases comparative study are as follows: 5. The physical impairment could be compared in 167 out of total 312 cases and for the cases of complex impairment, McBride method underestimate physical impairment rate compared with AMA method. 6. When disability rate was assessed, occupation was considered the compensation of only 85 cases, and age was used in only 21 cases. This was because occupation and age compensation in McBride method are unreasonable. 7. The most ideal alternative is to assess physical impairment according to AMA method and then to develop a compensation method appropriate for the circumstances of Korea society.
Compensation and Redress
;
Insurance
;
Korea*
;
Occupations
4.Generation and characterization of integration-free induced pluripotent stem cells from patients with autoimmune disease.
Mi Young SON ; Mi Ok LEE ; Hyejin JEON ; Binna SEOL ; Jung Hwa KIM ; Jae Suk CHANG ; Yee Sook CHO
Experimental & Molecular Medicine 2016;48(5):e232-
Autoimmune diseases (AIDs), a heterogeneous group of immune-mediated disorders, are a major and growing health problem. Although AIDs are currently treated primarily with anti-inflammatory and immunosuppressive drugs, the use of stem cell transplantation in patients with AIDs is becoming increasingly common. However, stem cell transplantation therapy has limitations, including a shortage of available stem cells and immune rejection of cells from nonautologous sources. Induced pluripotent stem cell (iPSC) technology, which allows the generation of patient-specific pluripotent stem cells, could offer an alternative source for clinical applications of stem cell therapies in AID patients. We used nonintegrating oriP/EBNA-1-based episomal vectors to reprogram dermal fibroblasts from patients with AIDs such as ankylosing spondylitis (AS), Sjögren's syndrome (SS) and systemic lupus erythematosus (SLE). The pluripotency and multilineage differentiation capacity of each patient-specific iPSC line was validated. The safety of these iPSCs for use in stem cell transplantation is indicated by the fact that all AID-specific iPSCs are integrated transgene free. Finally, all AID-specific iPSCs derived in this study could be differentiated into cells of hematopoietic and mesenchymal lineages in vitro as shown by flow cytometric analysis and induction of terminal differentiation potential. Our results demonstrate the successful generation of integration-free iPSCs from patients with AS, SS and SLE. These findings support the possibility of using iPSC technology in autologous and allogeneic cell replacement therapy for various AIDs, including AS, SS and SLE.
Autoimmune Diseases*
;
Fibroblasts
;
Humans
;
In Vitro Techniques
;
Induced Pluripotent Stem Cells*
;
Lupus Erythematosus, Systemic
;
Pluripotent Stem Cells
;
Spondylitis, Ankylosing
;
Stem Cell Transplantation
;
Stem Cells
;
Transgenes
5.A rat model for radiation-induced proctitis.
Seunghee KANG ; Mison CHUN ; Yoon Mi JIN ; Mi Son CHO ; Young Taek OH ; Byoung Ok AHN ; Tae Young OH
Journal of Korean Medical Science 2000;15(6):682-689
Radiation proctitis is a frequent acute complication encountered with pelvic irradiation. This study was aimed at establishing the optimal radiation dose for radiation-induced proctitis in rats. Female Wistar rats were used. The rectal specimens were examined morphologically at 5th and 10th day following 10-30 Gy irradiation in single fraction. With increasing dose, mucosal damage became worse, and there was a prominent reaction after > or =15 Gy. We selected 17.5 Gy as an optimal dose for radiation proctitis and examined specimens at day 1-14 and at week 4, 6, 8, and 12 after 17.5 Gy. The rectal mucosa revealed characteristic histological changes with time. An edema in lamina propria started as early as 1-2 days after irradiation and progressed into acute inflammation. On day 7 and 8, regeneration was observed with or without ulcer. Four weeks later, all regeneration processes have been completed with end result of either fibrosis or normal appearing mucosa. This study showed that the radiation injury of the rectum in rat develops in dose-dependent manner as it has reported in previous studies and suggested that 17.5 Gy in single fraction is the optimum dose to evaluate the protective effect of various medications for radiation proctitis in face of the clinical situation.
Animal
;
Disease Models, Animal
;
Dose-Response Relationship, Radiation
;
Female
;
Proctitis*/pathology
;
Proctitis*/mortality
;
Proctitis*/etiology
;
Rats
;
Rats, Wistar
;
Rectum/radiation effects*
;
Rectum/pathology
;
Time Factors
6.The Effect of Modified Constraint-induced Movement Therapy for the Stroke Patients in Inpatient Setting.
Mi Ok SON ; Eun Soo KIM ; Si Woon PARK ; Kyong Mi KIM ; Soon Ja JANG ; Jae Keun OH
Journal of the Korean Academy of Rehabilitation Medicine 2007;31(1):56-62
OBJECTIVE: To evaluate the effectiveness of the modified constraint-induced movement therapy (CIMT) for inpatient rehabilitation of the stroke patients. METHOD: Twenty-four patients admitted by subacute or chronic stroke were enrolled and divided into two groups, experimental and control groups. The experimental group (n=13) received the CIMT five days a week for 2 weeks. Less affected arm was restrained for 14 hours a day, practicing purposeful activities with more affected arm for 6 hours a day in group setting. The control group (n=11) received conventional occupational therapy for the same period. The outcome was measured by Fugl-Meyer MotorAssessment (FMA), Brunnstrom stage, Jebsen hand function test, grip strength, Box and Block test, nine hole peg test, Functional Independence Measure (FIM), and Motor Activity Log (MAL). RESULTS: The experimental group showed significantly higher improvements (p<0.05) in FMA, Brunnstorm stage, Jebsen hand function test, grip strength, Box and Block test, FIM, and MAL. CONCLUSION: Modified CIMT delivered in group setting is considered to be an effective treatment to improve functional use of the hemiparetic arm of stroke patients in inpatient setting.
Arm
;
Hand
;
Hand Strength
;
Humans
;
Inpatients*
;
Motor Activity
;
Occupational Therapy
;
Paresis
;
Rehabilitation
;
Stroke*
7.Reproductive Outcome of Women with Recurrent Abortions or Infertility Following Treatment by Operative Hysteroscopy for an Intrauterine Septum.
Ji Hong SONG ; Keun Jai YOO ; In Ok SONG ; Eun Chan PAIK ; Bum Chae CHOI ; Il Pyo SON ; Jong Young JUN ; In Sou PARK ; Mi Kyoung KOONG ; In Soo KANG
Korean Journal of Obstetrics and Gynecology 1998;41(12):3034-3039
Uterine anomalies have been reported in 4% of women with infertility and in up to 15% of those with recurrent abortion. One of the major intrauterine disorder associated with infertility and recurrent abortions is intrauterine septum, The reproductive outcome of 41 patients of intrauterine septum (7 complete, 34 incomplete) with repeated abortions or infertility was assessed after the uterine septotomy. 5 of 7 patients with comlete uterine septum undergone uterine septotomy (3; hysteroscopic metroplasty, 2; abdominal metroplasty) had total 6 pregnancies and all of them had live biths. 28 patients with incomplete uterine septum got the hysteroscopic intrauterine septotomy and the viable pregnancy rate was 62% (3 ongoing pregnancies, 13 live biths of total 26 pregnancies). 6 patients with incomplete uterine septum had not the operation and 5 patients had 5 live births after total 6 pregnancies with 1 spontaneus abortion. Even though, the number of cases were small, the live birth rate in the group of septotomy of the patients of complete uterine septum (100%, 6/6) was higher than that in the group of not-done (50%, 1/2). The live birth rate in the group of not-done of the patients with incomplete uterine septum (83%, 5/6) was higher than that in the group of hysteroscopic uterine septotomy (62%, 16/26), but 5 of 6 had short uterine septal length (<1 cm), 1 had 1.5 cm septal length in the group of not-done. All the patients with successful pregnancy outcome had no other co-factors at the diagnostic laparoscopy, but the 5 primary infertility patients with no live birth even after treatment (all were with incomplete septum; 3 undergone hysteroscopic septotomy, 2 not-done with one abortion) had other co-factors such as endometriosis, peritoneal or tubal facor. In conclusion, hysteroscopic uterine septotomy would be useful for the patients with habitutal abortion or infertility and more advanced managemnet protocols should be applied to the patients having other co-factors if there was no pregnancy even after the uterine septotomy.
Abortion, Habitual*
;
Endometriosis
;
Female
;
Humans
;
Hysteroscopy*
;
Infertility*
;
Laparoscopy
;
Live Birth
;
Pregnancy
;
Pregnancy Outcome
;
Pregnancy Rate
8.A Case of Non-immune Hydrops Fetalis due to Intraperitoneal Hemangioma.
Young Ok KWON ; Sung Mi KIM ; Ji Hyun PARK ; Chang Mok SON ; Jung Sil PARK ; Hae Suk KIM
Journal of the Korean Society of Neonatology 2005;12(2):206-211
Hydrops describes the infant who has generalized edema due to accumulation of excess fluid. In severe case, massive edema with ascites and pleural and pericardial effusions are commonly combined. The main etiology of hydrops fetalis has been changed from immune type which is caused by fetomaternal blood group incompatibility to nonimmune type. Although cardiovascular diseases are the most common (23% to 38%) causes for nonimmune hydrops fetalis, fetal tumors still compromise 5% to 7% of the diseases. We report a case of nonimmune hydrops fetalis due to intraperitoneal hemangioma. The newborn infant was managed surgically and had excellent outcome.
Ascites
;
Blood Group Incompatibility
;
Cardiovascular Diseases
;
Edema
;
Hemangioma*
;
Humans
;
Hydrops Fetalis*
;
Infant
;
Infant, Newborn
;
Pericardial Effusion
9.GnRH Agonist Stimulation Test (GAST) for Prediction of Ovarian Response in Controlled Ovarian Stimulation (COH).
Mee Ran KIM ; In Ok SONG ; Hye Jeong YEON ; Bum Chae CHOI ; Eun Chan PAIK ; Mi Kyoung KOONG ; Il Pyo SON ; Jin Woo LEE ; Inn Soo KANG
Korean Journal of Fertility and Sterility 1999;26(2):163-170
OBJECTIVES: The aims of this study are 1) to determine if GAST is a better indicator in predicting ovarian response to COH compared with patient's age or basal FSH level and 2) to evaluate its role in detecting abnormal ovarian response. DESIGN : Prospective study in 118 patients undergoing IVF-ET using GnRH-a short protocol during May-September 1995. MATERIALS AND METHODS: After blood sampling for basal FSH and estradiol (E2) on cycle day two, 0.5 ml (0.525 mg) GnRH agonist (Suprefact, Hoechst) was injected subcutaneously. Serum E2 was measured 24 hours later. Initial E2 difference (deltaE2) was defined as the change in E2 on day 3 over the baseline day 2 value. Sixteen patients with ovarian cyst or single ovary or incorrect blood collection time were excluded from the analysis. The patients were divided into three groups by deltaE2; group A (n=30):deltaE2<40 pg/ml, group B (n=52): 40 pg/ml< or =deltaE2<100 pg/ml, group C (n=20): deltaE2< or =100 pg/ml. COH was done by GnRH agonist/HMG/hCG and IVF-EF was followed. Ratio of E2 on day of hCG injection over the number of ampules of gonadotropins used (E2hCGday/Amp) was regarded as ovarian responsiveness. Poor ovarian response and overstimulation were defined as E2 hCGday less than 600 pg/ml and greater than 5000 pg/ml, respectively. RESULTS: Mean age (+/-SEM) in group A, B and C were 33.7+/-0.8*, 31.5 +/-0.6 and 30.6+/-0.5*, respectively (*: p<0.05). Mean basal FSH level of group A (11.1+/-1.1 mIU/ml) was significantly higher than those of B (7.4+/- 0.2 mIU/ml) and C (6.8+/-0.4 mIU/ml) 0<0.001). Mean E2hCGday of group A was significantly lower than those of group B or C, i.e., 1402.1+/-187.7 pg/ml, 3153.2+/- 240.0 pg/ml, 4078.8+/-306.4 pg/ml respectively (p<0.0001). The number of ampules of gonadotropins used in group A was significantly greater than those in group B or C: 38.6+/-2.3, 24.2+/-1.1 and 18.5+/-1.0 (p<0.0001). The number of oocytes retrieved in group A was significantly smaller than those in group B or C: 6.4+/-1.1, 15.5+/-1.1 and 18.6+/-1.6, respectively (p<0.0001). By stepwise multiple regression, only deltaE2 showed a significant correlation (r=0.68, p<0.0001) with E2HCGday/Amp, while age or basal FSH level were not significant. Likewise, only deltaE2 correlated significantly with the number of oocytes retrieved (r=0.57, p<0.001). All four patients whose COH was canceled due to poor ovarian response belonged to group A only (Fisher's exact test, p<0.01). Whereas none of 30 patients in group A (0%) had overstimulation, 14 patients among 72 patients (19.4%) in group B and C had overstimulation (Fisher's exact test, p<0.01). CONCLUSIONS: These data suggest that initial E2 difference after GAST may be a better prognostic indicator of ovarian response to COH than age or basal FSH level. Since initial E2 difference demonstrates significant association with abnormal ovarian response such as poor ovarian response necessitating cycle cancellation or overstimulation, GAST may be helpful in monitoring and consultation of patients during COH in IVF-ET cycle.
Estradiol
;
Female
;
Gonadotropin-Releasing Hormone*
;
Gonadotropins
;
Humans
;
Oocytes
;
Ovarian Cysts
;
Ovary
;
Ovulation Induction*
;
Prospective Studies
10.Effects of Thyroxine on Hyperkalemia and Renal Cortical Na(+), K(+) - ATPase Activity Induced by Cyclosporin A.
Chur Woo YOU ; Yong Hoon PARK ; Eun Sil LEE ; Yong Jin KIM ; Son Moon SHIN ; Mi Ok PARK
Journal of Korean Medical Science 2002;17(5):625-632
Cyclosporin A (CsA)-induced hyperkalemia is caused by alterations in transepithelial K(+) secretion resulting from the inhibition of renal tubular Na(+), K(+) -ATPase activity. Thyroxine enhances renal cortical Na(+), K(+) -ATPase activity. This study investigated the effect of thyroxine on CsA-induced hyperkalemia. Sprague-Dawley rats were treated with either CsA, thyroxine, CsA and thyroxine, or olive-oil vehicle. CsA resulted in an increase in BUN and serum K(+), along with a decrease in creatinine clearance, fractional excretion of potassium, and renal cortical Na(+), K(+) -ATPase activity, as compared with oil vehicle administration. Histochemical study showed reduced Na(+), K(+) -ATPase activity in the proximal tubular epithelial cells of the CsA-treated compared with the oil-treated rats. Histologically, isometric intracytoplasmic vacuolation, disruption of the arrangement and swelling of the mitochondria, and a large number of lysosomes in the tubular epithelium were characteristic of the CsA-treated rats. Co-administration of thyroxine prevented CsA-induced hyperkalemia and reduced creatinine clearance, Na(+), K(+) -ATPase activity, and severity of the histologic changes in the renal tubular cells when compared with the CsA-treated rats. Thyroxine increased the fractional excretion of potassium via the preservation of Na(+), K(+) -ATPase activity in the renal tubular cells. Thus, the beneficial effects of thyroxine may be suited to treatment modalities for CsA-induced hyperkalemia.
Animals
;
Cyclosporine/antagonists & inhibitors/*toxicity
;
Hyperkalemia/chemically induced/*drug therapy/metabolism/prevention & control
;
Immunosuppressive Agents/antagonists & inhibitors/*toxicity
;
Kidney Cortex/*drug effects/*enzymology/pathology
;
Male
;
Microsomes/enzymology
;
Potassium/blood/metabolism
;
Rats
;
Rats, Sprague-Dawley
;
Sodium-Potassium-Exchanging ATPase/*metabolism
;
Thyroxine/*pharmacology