1.The Study of Changes in Arterial Blood Gas Finding with Time Interval.
Journal of the Korean Society of Emergency Medicine 2000;11(1):27-34
BACKGROUND: Arterial blood gas analysis are highly susceptible to preanalytic error due to improper method of obtaining or handling the blood sample before analysis. The error in measurement of blood gas analysis are loss of CO2 by exposure to atmospheric air, effect of anticoagulant itself, temperature difference between the experimental subject and the measuring electrode and metabolic change which occur between blood sampling and measurement. METHOD: To study the effect of the delay in estimation of blood gas and drawn blood on values of blood gas partial pressure and pH. Blood sample were divided into 2 groups according to the method of storage, group I stored at 24~25degrees C(room temperature) under anaerobic condition. ;group II stored at 0~4degrees C(refrigerator) under anaerobic condition. The samples were analyzed by time interval through 180 minutes in each group. RESULTS: The result were as follows: 1) PaO2 decreased significantly after 10 mins in group I, whereas it decreased significantly after 20 mins in group II. 2) PaO2 increased significantly after 20 mins in group I, whereas it increased significantly after 120 mins in group II. 3) pH decreased significantly after 60 mins in group I, whereas it decreased significantly after 120 mins in group II. 4) No significant changes of bicarbonate and SaO2 were noted in each group CONCLUSION: From above results, it would be advisable to analyze the sample in a short period of time or to store in a refrigerator when the measuring will be delayed. So we highly recommend that blood gas analysis should be performed as soon as possible after sampling, especially within 10 minutes.
Blood Gas Analysis
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Electrodes
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Hydrogen-Ion Concentration
;
Partial Pressure
2.Four cases of edward syndrome with abnomal prenatal ultrasonographic findings.
Nam Gyu CHO ; Kyung Ik KWON ; Dong Ho NAM ; Chun Gun LIM ; Ho Chung RYU ; Jong In KIM ; Taek Hoon KIM
Korean Journal of Perinatology 1993;4(4):599-609
No abstract available.
3.Primary Malignant Fibrous Histiocytoma of the Liver: 2 Cases Report.
Hee Chul YU ; Sung Hoo JUNG ; Baik Hwan CHO ; Jae Chun KIM ; Nam Poo KANG
The Korean Journal of Hepatology 1999;5(3):240-245
The malignant fibrous histiocytoma (MFH) was first introduced in 1963 to refer to a group of soft-issue tumors characterized by a storiform or cartwheel-ike growth pattern and predominantly fibroblastic appearance. It was postulated that they were derived from histiocytes that could assume the appearance and function of fibroblasts. MFH has been recognized to be the most common sarcoma in the soft tissue of late adult life which involves the deep fascia or skeletal muscles of the extremities or retroperitoneum. It has been noted in other organs, however, it rarely arises in the liver. We report two cases of primary malignant fibrous histiocytoma of the liver histopathologically confirmed after surgical resection-storiform pleomorphic and myxoid subtypes in the 55 year old male and 49 year old female patients, respectively, and describes the clinical courses, characteristics and pathologic aspects with review of the related literatures.
Adult
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Extremities
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Fascia
;
Female
;
Fibroblasts
;
Histiocytes
;
Histiocytoma, Malignant Fibrous*
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Humans
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Liver*
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Male
;
Middle Aged
;
Muscle, Skeletal
;
Sarcoma
4.Bilateral advancement flap(U-V anoplasty) for anal stenosis.
Kwang Soo YOON ; Jin Su PARK ; Nam Chun CHO ; Dae Sung KIM ; Byeong Seon RHOE
Journal of the Korean Society of Coloproctology 1992;8(3):263-268
No abstract available.
Constriction, Pathologic*
5.A Modified Surgical Technique for 2 Cases of Conjunctivochalasis Near the Lower Punctum.
Journal of the Korean Ophthalmological Society 1993;34(1):75-78
Conjunctivochalasis is an isolated bilateral condition in which redundant conjunctival tissue overlies the lower eyelid margin or covers the lower pmctum. It produces tearing by mechanical obstruction of the lower punctum and/or mechanical disruption of normal outflow of the lacrimal film. A modified surgical technique, simple local excision of redundant conjuctiva in the crescent shape along the plica semilunaris and the lower bulbar conjunctiva between limbus and lower fornix, relieved epiphora in two male patients with redundant conjunctiva near the lower punctum. Surgery was done under the local anesthesia without postoperattve complications. Authers emphasize the importance of careful examination of conjunctivochalasis during ocular examination of patient complaining tearing.
Anesthesia, Local
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Conjunctiva
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Eyelids
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Humans
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Lacrimal Apparatus Diseases
;
Male
6.Clinical Study of Risk Factors Associated with the Development of Rebleeding After Traumatic Hyphema.
Journal of the Korean Ophthalmological Society 1993;34(1):8-12
We reviewed the medical records of 201 patients who were admitted between January 1980 and March 1992 with a diagnosis of traumatic hyphema to define risk factors associated with the development of rebleeding. Rebleeding occurred in 18 patients (9.0%), and took place on day 1 to 6 after injury with a maximum occurrence on day 2. A group of 32 patients who were examined more than 24 hours after injury were found to have a rebleeding rate of 18.8% (six of 32 patients). It was higher than the rebleeding rate (6.8%) in patients examined within 24 hours. When the amount of blood is more than 1/3 of anterior chamber at the time of initial examination, rebleeding was shown to occur more frequently. Children had a rebleeding rate similar to adults, and males showed approximately the same rate of rebleeding compared to females. This review suggests that patients examined more than 24 hours after injury and injured severely represent unique population that deserves special consideration.
Adult
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Anterior Chamber
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Child
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Diagnosis
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Female
;
Humans
;
Hyphema*
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Male
;
Medical Records
;
Risk Factors*
7.Blow-out Fracture, Cyanoacrylate Fixation and Clinical Aspects of 27 Patients.
Journal of the Korean Ophthalmological Society 1991;32(7):514-519
Blow-out fracture is a fracture of the weadk bony orbital floor resulting from the transmission of intraorbital pressure in a blunt trauma. In this report, I analyse the clinical aspects of 27 patients who were treated with cyanoacrylate during open reduction. The leading cause was a traffic accident(17 patients, 63%). In addutuib. the inferior wall of the orbit was the most frequent site of fracture(22 patients, 81%). The interval between the onset of injury and the operatuib averaged 7.3days. The most common clinical sign helpful in diagnosing the blow-out fracture is the lid sign-ecchymosis and edema(26 patients, 96%); but, diplopia, positive forced duction test and enophthalmos were found in under 30% of the cases. The operations were done by infraciliary approach in most cases, and a silastic sheet was firmly attached to the site of fracture with cyanoacrylate. In all cases examined, there were no significant complications. In conclusion, I am convinced that the use of cyanoacrylate during the placement of silastic sheet for the treatment of blow-out fracture makes a firm adhesion, prevents reherniation of tissue and protrusion of the implant and also reduces complications.
Cyanoacrylates*
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Diplopia
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Enophthalmos
;
Humans
;
Orbit
;
Orbital Fractures*
8.Two cases of External Carotid-Opthalmic Anastomosis in Takayasu's Arteritis.
Min AHN ; Nam Chun CHO ; Hong Joo HAN
Journal of the Korean Ophthalmological Society 1996;37(5):746-752
Takayasu's arteritis is the chronic inflammatory panarteritis of unknown pathogenesis, affecting aortic arch and main arotic branches, pulmonary and renal arteries. It mainly affects young oriental women and cause chronic ischemic injury to tissues of the brian, orbits, upper limbs, myocardium, and kidneys. The ophthalmologic features are tend to be late the manifestations of Takayasu's arteritis and include ischemia of the retina, choroid, and anterior segment. We experienced two cases of Takayasu's arteritis whose ipsilateral ophthalmic artery was completely occluded. yet maintained proper visual acuity by external carotid-ophthalmic anastomosis.
Aorta, Thoracic
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Choroid
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Female
;
Humans
;
Ischemia
;
Kidney
;
Myocardium
;
Ophthalmic Artery
;
Orbit
;
Renal Artery
;
Retina
;
Takayasu Arteritis*
;
Upper Extremity
;
Visual Acuity
9.A Case of Palpebral Sarcoidosis Associated with Granulomatous Uveitis.
Journal of the Korean Ophthalmological Society 1990;31(6):819-823
Sarcoidosis is a chronic granulomatous disease of unknown cause characterized by widespread occurence of epithelioic cell. The authors experienced a case of sarcoidosis in 34-year-old female who has lacrimal gland enlargement, severe subcutaneous nodules and bilateral granulomatous uveitis. Histopathologic examination of the subcutaneous nodule of lid revealed sarcoidosis. In the course of corticosteroid therapy, subcutaneous nodules and enlarged lacrimal gland subsided gradually.
Adult
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Female
;
Granulomatous Disease, Chronic
;
Humans
;
Lacrimal Apparatus
;
Sarcoidosis*
;
Uveitis*
10.Carbonic Anhyd rase Activity in Muller Cell.
Journal of the Korean Ophthalmological Society 2000;41(5):1068-1072
Carbonic anhydrase, an enzyme catalysing the reversible hydration of carbon dioxide, is present in the Muller cells.Because the enzyme is not present in other uroretinal cells in the retina, it can be used as a marker for Muller cells.Carbonic anhydrase activity was demonstrated bnzymehistochemically in human and rabbit Muller cells to know a relation of metabolic functions and carbonic anhydrase activity.Human retinas were obtained from donor eyes.The eyes were enucleated immediately after death forenzymatic activity. In human retina, heavy staining was found in the inner nuclear layer and nerve fiber layer, moderate staining in the outer nuclear layer and weak or no staining in the plexiform layers.In rabbit retina, heavy staining was found in the nerve fiber layer and nuclear layers and weak reaction in the two plexiform layers. These findings suggest that Muller cells may participate in CO2 homeostasis mechanism of carbonic anhydrase in the retina.
Carbon Dioxide
;
Carbon*
;
Carbonic Anhydrases
;
Ependymoglial Cells
;
Homeostasis
;
Humans
;
Metabolism
;
Nerve Fibers
;
Retina
;
Tissue Donors