1.Midazolam as Premedication for Upper Gastrointestinal Endoscopy.
Kyu Sung RIM ; Sung Pyo HONG ; Wook Hee WON ; Pil Won PARK ; Young Soo CHA
Korean Journal of Gastrointestinal Endoscopy 1996;16(2):181-190
The intravenous administration of midazolam is widely used as sedative premedication for upper gastrointestinal endoscopy. We performed a study to evaluate the effectiveness and safety of midazoiam as premedication for upper gastrointestinal endoscopy. Between June 1995 and October 1995, 112 patients of diagnostic esophago-gastroduodenoseopy were enrolled in the study. The patients were recieved a bolus midazolam 0.~03mg/kg or placebo, followed by typical anesthesia. The blood pressure, pulse and oximeter values were monitored. The systolic blood pressure and heart rate were increased during endoscopy in compared with before premedication, and normalized immediately. There was no significant change of arterial oxygen saturation. Midazolam induced amnesia completely in 49.2% and partially in 27.2%, and all patients were recovered completely in 1 hour. The tolerance score is higher in the midazolam group as compared with the placebo group(p<0.05), and midazolam group would accept the same sedation for repeated endoscopies(p<0.01). We conclude that midazolam has beneficial effects as premedication for upper gastrointastinal endoscopy without significant altteration in cardiopulmonary parameters. This suggest that midazolam may be used more frequently as premedication, especially in the cases of repeated endoscopy.
Administration, Intravenous
;
Amnesia
;
Anesthesia
;
Blood Pressure
;
Endoscopy
;
Endoscopy, Digestive System
;
Endoscopy, Gastrointestinal*
;
Heart Rate
;
Humans
;
Midazolam*
;
Oxygen
;
Premedication*
2.A Case of Chronic Lymphocytic Leukemia with Trisomy 12 detected by Fluorescence in situ Hybridization (FISH).
Deok CHO ; Won Pyo HONG ; Hyeouug Joon KIM ; Dong Wook RYANG
Korean Journal of Clinical Pathology 1997;17(5):689-693
We report a case of B-cell chronic lymphocytic leukemia (CLL) with trisomy 12 detected by FISH using chromosome 12 alpha-satellite Probe (Oncor , USA) in uncultured interphase cells. Chromosome studies did not produce an analyzable metaphase by standard short term culture and revealed only normal female karyotype by B cell mitogen (phorbol 12-myristate 13-acetate) stimulated 96 hr culture. The patient, a 59-year-old female, did not have hepatomegaly, splenomegaly, lymphadenopathy and any other symptoms. The peripheral blood of the patient showed marked lymphocytosis (WBC : 28,300/microL, Lymphocyte: 80%) and the diagnosis by immunophenotyping was B cell CLL:CD5, CDl9, CD2O, SmIg, HLA-DR positive.
Chromosomes, Human, Pair 12
;
Diagnosis
;
Female
;
Fluorescence*
;
Hepatomegaly
;
HLA-DR Antigens
;
Humans
;
Immunophenotyping
;
In Situ Hybridization*
;
Interphase
;
Karyotype
;
Leukemia, Lymphocytic, Chronic, B-Cell*
;
Lymphatic Diseases
;
Lymphocytes
;
Lymphocytosis
;
Metaphase
;
Middle Aged
;
Splenomegaly
;
Trisomy*
3.A Case of Chronic Lymphocytic Leukemia with Trisomy 12 detected by Fluorescence in situ Hybridization (FISH).
Deok CHO ; Won Pyo HONG ; Hyeouug Joon KIM ; Dong Wook RYANG
Korean Journal of Clinical Pathology 1997;17(5):689-693
We report a case of B-cell chronic lymphocytic leukemia (CLL) with trisomy 12 detected by FISH using chromosome 12 alpha-satellite Probe (Oncor , USA) in uncultured interphase cells. Chromosome studies did not produce an analyzable metaphase by standard short term culture and revealed only normal female karyotype by B cell mitogen (phorbol 12-myristate 13-acetate) stimulated 96 hr culture. The patient, a 59-year-old female, did not have hepatomegaly, splenomegaly, lymphadenopathy and any other symptoms. The peripheral blood of the patient showed marked lymphocytosis (WBC : 28,300/microL, Lymphocyte: 80%) and the diagnosis by immunophenotyping was B cell CLL:CD5, CDl9, CD2O, SmIg, HLA-DR positive.
Chromosomes, Human, Pair 12
;
Diagnosis
;
Female
;
Fluorescence*
;
Hepatomegaly
;
HLA-DR Antigens
;
Humans
;
Immunophenotyping
;
In Situ Hybridization*
;
Interphase
;
Karyotype
;
Leukemia, Lymphocytic, Chronic, B-Cell*
;
Lymphatic Diseases
;
Lymphocytes
;
Lymphocytosis
;
Metaphase
;
Middle Aged
;
Splenomegaly
;
Trisomy*
4.Chromosome Breakage Test for the Diagnosis of Fanconi's Anemia.
Dong Wook RYANG ; Deok CHO ; Won Pyo HONG ; Hoon KOOK ; Tai Ju HWANG
Korean Journal of Clinical Pathology 1998;18(1):101-106
BACKGROUND: Fanconi's anemia (FA) is an autosomal recessive disease characterized by aplastic anemia, pre-malignancy, congenital malformations and chromosome breakage syndromes. As up to 30% of patients have no detectable congenital anomalies, the modern diagnosis of FA rests on chromosomal breakage of patient's cells induced by chemical clastogens such as diepoxybutane (DEB) or mitomycin-C (MMC). METHODS: We have done chromosome breakage test to differentiate FA from 11 aplastic anemia, three Diamond-Blackfan syndrome, three myelodysplastic syndrome, one acute leukemia with congenital anomaly and three siblings of FA. The peripheral blood lymphocytes from each individual were co-cultured in phytohemagglutinin-containing medium by the three methods, i.e., DEB treated, MMC treated and un-treated. RESULTS: Five cases were found to have increased chromosomal breakages to DEB and MMC, confirming diagnosis of FA. Other 21 cases showed no increased chromosomal breakages. No overlap was found between FA group and others (P<0.01). In one FA, there was no increased spontaneous breakage, but increased breakage to DEB and MMC. Of five FA, one case showed no congenital anomalies. CONCLUSIONS: Chromosme breakage test was shown to be simple, reliable and useful in ascertaining the diagnosis of FA.
Anemia, Aplastic
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Chromosome Breakage*
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Diagnosis*
;
Fanconi Anemia*
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Humans
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Leukemia
;
Lymphocytes
;
Mitomycin
;
Mutagens
;
Myelodysplastic Syndromes
;
Siblings
5.MR Imaging Findings of Avulsion Fracture of the Tibial Spine of the Knee, Focusing on Cruciate Ligament Tear.
Sang Won KIM ; Hoon Pyo HONG ; Wook JIN ; Kyung Nam RYU
Journal of the Korean Radiological Society 2003;48(4):337-343
PURPOSE: To determine the presence of cruciate ligament tears following avulsion injuries involving the ACL and PCL, and to correlate the findings with those of surgery. MATERIALS AND METHODS: Between March 1997 and May 2002, avulsion injury involving the ACL or PCL was diagnosed in 19 patients. Ten of these [8 males and 2 females aged 10-51 (avergae, 27.7) years] were included in this study. We assessed the presence of cruciate ligament tears at MR imaging, correlating the findings with those of surgery. Associated intra-articular injuries, treatment methods and follow-up results were also evaluated. RESULTS: Among Seven patients with ACL avulsion injury, this was assessed at MR imaging as complete tear (n=1), partial tear (n=5), or intact (n=1), while all MR images of PCL avulsion injury (n=3) showed that this was partial tear. All imaging findings corresponded with the surgical findings. In four patients there was associated knee injury involving, respectively, tears of the medial meniscus, lateral meniscus, PCL and MCL, and popliteal ligament. CONCLUSION: Our findings showed that with one exception, patients with avulsion injury of the ACL or PCL had suffered either a partial or complete tear. MR imaging may be useful in the diagnosis of tears of the cruciate ligament which have not been noticed at surgery or arthroscopy in avulsion injuries involving the ACL and PCL.
Arthroscopy
;
Diagnosis
;
Female
;
Follow-Up Studies
;
Humans
;
Knee Injuries
;
Knee*
;
Ligaments*
;
Magnetic Resonance Imaging*
;
Male
;
Menisci, Tibial
;
Spine*
6.Clinical characteristics of the far lateral herniation of lumbar disc.
Hong Tae KIM ; Bong Hoon PARK ; Young Soo BYUN ; Dong Wook CHUN ; Chun Pyo CHUNG ; Won Ho CHO
The Journal of the Korean Orthopaedic Association 1993;28(6):2009-2016
No abstract available.
7.Adverse Effect of Human Hydrosalpingeal Fluid on the Development of Mouse Embryo (II).
Mi Kyoung KOONG ; Jin Hyun JUN ; Sang Jin SONG ; Ji Hong SONG ; Soo Jeong HONG ; Keun Jae YOO ; Il Pyo SON ; Jeong Wook KIM ; Inn Soo KANG
Korean Journal of Fertility and Sterility 1999;26(2):213-217
In our previous study, we observed that hydrosalpingeal fluid (HSF) adversely effect mouswe embryo development and hatching. The aim of this study was to evaluate the effect of HSF as assessed by the blastocyst development rate (BDR) and by cell counting in vitro HSF was collected from nine patients undergoing salpingoneostomy to correct hydrosalpinx. Two-cell embryos were obtained from superovulated ICR mice. T6 medium and T6+/-0.4% bovine serum albumin were used as control media. T6 medium containing 10% or 50% HSF and 100% HSF from each patient were used as test media. Nine to 15 embryos were cultured in microdrops prepared from each of these media. To assess the total cell number within each blastocyst, the blastocysts were fixed and stained with Hoechst 33342 to facilitate cell counting. The mean BDR in two control media were 88.89% and 85.40%. The mean BDR in media containing 10%, 50%, 100% HSF were 85.87%, 89.58% and 75.57%, respectively (*: p<0.05). The overall mean cell count (+/-SEM) in control media were 87.6+/-9.65 and 90.12+/-11.38. The BDR was affected adversely only by 100% HSF and not in media containing 10% or 50% HSF. Mean cell counts were decreased significantly only in blastocysts cultured 100% HSF (63.8+/-13.66; p<0.01) but not in blastocysts cultured in 10% or 50% HSF (91.3+/-12.44 and 82.9+/-18.27, respectively). Thus, it is concluded that HSF has no embyotoxic effect but has a mildly negatively effect on embryonic growth and development.
Animals
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Blastocyst
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Cell Count
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Embryonic Development
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Embryonic Structures*
;
Female
;
Growth and Development
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Humans*
;
Mice*
;
Mice, Inbred ICR
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Pregnancy
;
Serum Albumin, Bovine
8.Fluorescence in situ Hybridization using Chromosome X alpha-Satellite Probe To Evaluate Engraftment and To Monitor Residual Disease after Bone Marrow Transplantation.
Dong Wook RYANG ; Deok CHO ; Won Pyo HONG ; Hyeoung Joon KIM ; Ik Joo CHUNG ; Hoon KOOK ; Tai Ju HWANG
Korean Journal of Clinical Pathology 1998;18(1):7-13
BACKGROUND: Several methods have been used to evaluate the engraftment and to monitor residual disease after bone marrow transplantation (BMT). Among them, karyotyping have been useful in gauging engraftment following opposite sex BMT. More recently, fluorescence in situ hybridization (FISH) has also been applied to determine engraftment and residual status. In order to establish the utility of this method in clinical practice, we have evaluated the data from FISH and several methods. METHODS: We performed FISH using chromosome X alpha-satellite probe (Oncor , USA) on twenty eight peripheral blood and nine bone marrow nuclear cells from eleven patients who underwent sex mis-matched transplant and from a patient who had a loss of X chromosome. RESULTS: In nine patients with well engrafted BMT, signals of host cells showed less than 5% in all patients, evaluated 21-210 days post-transplant. Mixed chimerism was detected in six patients; transiently in early post-transplant period in four, in a patient with engraftment failure, and in a patient with relapse, respectively. CONCLUSION: FISH using X probe is a rapid, quantitative and sensitive 'interphase cytogenetic method' for the evaluation of engraftment and monitoring of residual disease following sex mis-matched BMT or BMT in a patient with a loss of X chromosome; It is especially useful in early post-transplant period when ony a few cells are available during severe cytopenia.
Bone Marrow Transplantation*
;
Bone Marrow*
;
Chimerism
;
Cytogenetics
;
Fluorescence*
;
Humans
;
In Situ Hybridization*
;
Karyotyping
;
Recurrence
;
X Chromosome
9.The Histopathologic and Clinical Features of Idiopathic Macular Hole.
Wook Pyo HONG ; Seok Joon LEE ; Jong Hyuck LEE
Journal of the Korean Ophthalmological Society 2002;43(1):81-88
PURPOSE: The purpose of this study was to assess surgical results of internal limiting membrane maculorrhexis and to better understand the ultrastructural features of excised tissue during surgery for idiopathic macular holes. METHODS: We studied 10 patients (10 eyes) with idiopathic macular hole, who had undergone trans-pars planar vitrectomy, peeling of internal limiting membrane with maculorrhexis maneuver, air-fluid exchange, and intravitreal gas tamponade. During the vitrectomy surgery for idiopathic macular hole, we excised specimens. These surgical specimens were evaluated with transmission electron microscopy for their histopathologic features. RESULTS: We achieved complete hole closure in all 10 eyes, postoperatively. Sixty percent of the patients achieved visual improvement of 2 or more lines on Snellen E visual acuity chart. In the ultrasutuctural findings, internal limiting membranes were noted. Some of them showed cellular components enmeshed in a collagenous matrix. In many cases, we could find that the internal limiting membranes were covered on its inner surface by a layer of cells. The most frequent cell type was myofibroblasts, followed by fibrocytes and fibrous astrocytes. CONCLUSIONS: Our study supports the hypothesis that idiopathic macular holes occur because of histopathologic changes of the prefoveal internal limiting membranes. And we postulate that intentional removal of internal limiting membrane with maculorrhexis is a logically reasonable surgical treatment for idiopathic macular holes.
Astrocytes
;
Collagen
;
Humans
;
Logic
;
Membranes
;
Microscopy, Electron, Transmission
;
Myofibroblasts
;
Retinal Perforations*
;
Visual Acuity
;
Vitrectomy
10.Filamentous Fungi Isolated from Hospital Air and from Clinical Specimens.
Won Pyo HONG ; Jong Hee SHIN ; Dong Hyeon SHIN ; Young Ae SUL ; Chang Jae LEE ; Soon Pal SUH ; Dong Wook RYANG
Korean Journal of Nosocomial Infection Control 1999;4(1):17-25
BACKGROUND: As the population of immunocompromised patients continues to grow, the incidence of infections caused by opportunistic filamentous fungi will continue to increase. Inhalation of fungal spores which are found in the environmental air precedes infection with molds. We investigated the relative frequency of various molds recovered from hospital air as compared to isolates from clinical specimens. METHODS: Air samples were taken from 83 sites in Chonnam University Hospital during December 1997. Air sampler (Biotest, Germany) with Rose Bengal agar strip (Biotest, Germany) was calibrated to take 40 liters of air. The strips were incubated at 37degrees C for 2-14 days. The results of air cultures were compared with those from the clinical specimens during a year (1997). RESULTS: Of 83 air samples cultured, 61 (73.5%) were positive for molds: 43 (51.8%) samples with 1-2 CFU, 15 (18.1 %) samples with 3-5 CFU, and 3 (3.6%) samples with > 5 CFU. A total of 184 molds were isolated and the most frequently recovered molds were Cladosporium (26.0%), followed by Penicillium (25.5%), Aspergillus (18.5%) and Alternaria (9.8%). The most frequently isolated molds from clinical specimens were Aspergillus (62.8%) and Fusarium (20.2%). For Aspergillus species, A. flavus (28,8%) and A. fumigates (25.4%) were predominant among the clinical isolates, whereas A sydowii (44.1%) and A. niger (38.2%) were common in the hospital air. CONCLUSION: This result shows that Cladosporium and Penicillium are the predominant molds in the hospital air and the relative frequency of molds recovered from hospital air is quite different from those of clinical isolates.
Agar
;
Alternaria
;
Aspergillus
;
Cladosporium
;
Fungi*
;
Fusarium
;
Immunocompromised Host
;
Incidence
;
Inhalation
;
Jeollanam-do
;
Niger
;
Penicillium
;
Rose Bengal
;
Spores, Fungal